174 files changed, 5320 insertions, 8957 deletions

diff --git a/arch/arm/mach-orion5x/include/mach/orion5x.h b/arch/arm/mach-orion5x/include/mach/orion5x.h
index e67c843baa0..9f5ce1ce584 100644
--- a/arch/arm/mach-orion5x/include/mach/orion5x.h
+++ b/arch/arm/mach-orion5x/include/mach/orion5x.h
@@ -157,9 +157,11 @@
 #define CPU_CONF                ORION5X_BRIDGE_REG(0x100)
 #define CPU_CTRL                ORION5X_BRIDGE_REG(0x104)
 #define CPU_RESET_MASK          ORION5X_BRIDGE_REG(0x108)
+#define  WDT_RESET              0x0002
 #define CPU_SOFT_RESET          ORION5X_BRIDGE_REG(0x10c)
 #define POWER_MNG_CTRL_REG      ORION5X_BRIDGE_REG(0x11C)
 #define BRIDGE_CAUSE            ORION5X_BRIDGE_REG(0x110)
+#define  WDT_INT_REQ            0x0008
 #define BRIDGE_MASK             ORION5X_BRIDGE_REG(0x114)
 #define  BRIDGE_INT_TIMER0      0x0002
 #define  BRIDGE_INT_TIMER1      0x0004
diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c
index a716ecd1db2..97187fa0ae5 100644
--- a/arch/arm/plat-omap/devices.c
+++ b/arch/arm/plat-omap/devices.c
@@ -441,16 +441,8 @@ static inline void omap_init_uwire(void) {}
 
 #if     defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
 
-#ifdef CONFIG_ARCH_OMAP24XX
-#define OMAP_WDT_BASE           0x48022000
-#else
-#define OMAP_WDT_BASE           0xfffeb000
-#endif
-
 static struct resource wdt_resources[] = {
         {
-                .start          = OMAP_WDT_BASE,
-                .end            = OMAP_WDT_BASE + 0x4f,
                 .flags          = IORESOURCE_MEM,
         },
 };
@@ -464,6 +456,19 @@ static struct platform_device omap_wdt_device = {
 
 static void omap_init_wdt(void)
 {
+        if (cpu_is_omap16xx())
+                wdt_resources[0].start = 0xfffeb000;
+        else if (cpu_is_omap2420())
+                wdt_resources[0].start = 0x48022000; /* WDT2 */
+        else if (cpu_is_omap2430())
+                wdt_resources[0].start = 0x49016000; /* WDT2 */
+        else if (cpu_is_omap343x())
+                wdt_resources[0].start = 0x48314000; /* WDT2 */
+        else
+                return;
+
+        wdt_resources[0].end = wdt_resources[0].start + 0x4f;
+
         (void) platform_device_register(&omap_wdt_device);
 }
 #else
diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c
index b8286f1ce85..6c54580a66d 100644
--- a/arch/avr32/boards/atngw100/setup.c
+++ b/arch/avr32/boards/atngw100/setup.c
@@ -9,6 +9,7 @@
  */
 #include <linux/clk.h>
 #include <linux/etherdevice.h>
+#include <linux/gpio.h>
 #include <linux/irq.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>
@@ -53,8 +54,11 @@ static struct spi_board_info spi0_board_info[] __initdata = {
 };
 
 static struct mci_platform_data __initdata mci0_data = {
-        .detect_pin     = GPIO_PIN_PC(25),
-        .wp_pin         = GPIO_PIN_PE(0),
+        .slot[0] = {
+                .bus_width      = 4,
+                .detect_pin     = GPIO_PIN_PC(25),
+                .wp_pin         = GPIO_PIN_PE(0),
+        },
 };
 
 /*
@@ -190,7 +194,7 @@ static int __init atngw100_init(void)
          * PB28/EXTINT3 doesn't; it should be SMBALERT# (for PMBus),
          * but it's not available off-board.
          */
-        at32_select_periph(GPIO_PIN_PB(28), 0, AT32_GPIOF_PULLUP);
+        at32_select_periph(GPIO_PIOB_BASE, 1 << 28, 0, AT32_GPIOF_PULLUP);
         at32_select_gpio(i2c_gpio_data.sda_pin,
                 AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
         at32_select_gpio(i2c_gpio_data.scl_pin,
@@ -204,6 +208,15 @@ postcore_initcall(atngw100_init);
 
 static int __init atngw100_arch_init(void)
 {
+        /* PB30 is the otherwise unused jumper on the mainboard, with an
+         * external pullup; the jumper grounds it.  Use it however you
+         * like, including letting U-Boot or Linux tweak boot sequences.
+         */
+        at32_select_gpio(GPIO_PIN_PB(30), 0);
+        gpio_request(GPIO_PIN_PB(30), "j15");
+        gpio_direction_input(GPIO_PIN_PB(30));
+        gpio_export(GPIO_PIN_PB(30), false);
+
         /* set_irq_type() after the arch_initcall for EIC has run, and
          * before the I2C subsystem could try using this IRQ.
          */
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index dfc3443e23a..29e5b51a7fd 100644
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -232,7 +232,7 @@ static void __init atstk1002_setup_extdac(void)
                 goto err_set_clk;
         }
 
-        at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
+        at32_select_periph(GPIO_PIOA_BASE, (1 << 30), GPIO_PERIPH_A, 0);
         at73c213_data.dac_clk = gclk;
 
 err_set_clk:
@@ -264,16 +264,20 @@ void __init setup_board(void)
 
 #ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
 
+static struct mci_platform_data __initdata mci0_data = {
+        .slot[0] = {
+                .bus_width      = 4,
+
 /* MMC card detect requires MACB0 *NOT* be used */
 #ifdef CONFIG_BOARD_ATSTK1002_SW6_CUSTOM
-static struct mci_platform_data __initdata mci0_data = {
-        .detect_pin     = GPIO_PIN_PC(14),      /* gpio30/sdcd */
-        .wp_pin         = GPIO_PIN_PC(15),      /* gpio31/sdwp */
-};
-#define MCI_PDATA       &mci0_data
+                .detect_pin     = GPIO_PIN_PC(14), /* gpio30/sdcd */
+                .wp_pin         = GPIO_PIN_PC(15), /* gpio31/sdwp */
 #else
-#define MCI_PDATA       NULL
+                .detect_pin     = -ENODEV,
+                .wp_pin         = -ENODEV,
 #endif  /* SW6 for sd{cd,wp} routing */
+        },
+};
 
 #endif  /* SW2 for MMC signal routing */
 
@@ -326,13 +330,14 @@ static int __init atstk1002_init(void)
         at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
 #endif
 #ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
-        at32_add_device_mci(0, MCI_PDATA);
+        at32_add_device_mci(0, &mci0_data);
 #endif
 #ifdef CONFIG_BOARD_ATSTK1002_SW5_CUSTOM
         set_hw_addr(at32_add_device_eth(1, &eth_data[1]));
 #else
         at32_add_device_lcdc(0, &atstk1000_lcdc_data,
-                             fbmem_start, fbmem_size, 0);
+                             fbmem_start, fbmem_size,
+                             ATMEL_LCDC_PRI_24BIT | ATMEL_LCDC_PRI_CONTROL);
 #endif
         at32_add_device_usba(0, NULL);
 #ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
diff --git a/arch/avr32/boards/atstk1000/atstk1003.c b/arch/avr32/boards/atstk1000/atstk1003.c
index 0cf664174c1..be089d7f37e 100644
--- a/arch/avr32/boards/atstk1000/atstk1003.c
+++ b/arch/avr32/boards/atstk1000/atstk1003.c
@@ -19,6 +19,7 @@
 #include <linux/spi/spi.h>
 
 #include <asm/setup.h>
+#include <asm/atmel-mci.h>
 
 #include <mach/at32ap700x.h>
 #include <mach/board.h>
@@ -66,6 +67,16 @@ static struct spi_board_info spi1_board_info[] __initdata = { {
 } };
 #endif
 
+#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+static struct mci_platform_data __initdata mci0_data = {
+        .slot[0] = {
+                .bus_width      = 4,
+                .detect_pin     = -ENODEV,
+                .wp_pin         = -ENODEV,
+        },
+};
+#endif
+
 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
 static void __init atstk1003_setup_extdac(void)
 {
@@ -84,7 +95,7 @@ static void __init atstk1003_setup_extdac(void)
                 goto err_set_clk;
         }
 
-        at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
+        at32_select_periph(GPIO_PIOA_BASE, (1 << 30), GPIO_PERIPH_A, 0);
         at73c213_data.dac_clk = gclk;
 
 err_set_clk:
@@ -154,7 +165,7 @@ static int __init atstk1003_init(void)
         at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
 #endif
 #ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
-        at32_add_device_mci(0, NULL);
+        at32_add_device_mci(0, &mci0_data);
 #endif
         at32_add_device_usba(0, NULL);
 #ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
diff --git a/arch/avr32/boards/atstk1000/atstk1004.c b/arch/avr32/boards/atstk1000/atstk1004.c
index 50a5273e591..248ef237c16 100644
--- a/arch/avr32/boards/atstk1000/atstk1004.c
+++ b/arch/avr32/boards/atstk1000/atstk1004.c
@@ -21,6 +21,7 @@
 #include <video/atmel_lcdc.h>
 
 #include <asm/setup.h>
+#include <asm/atmel-mci.h>
 
 #include <mach/at32ap700x.h>
 #include <mach/board.h>
@@ -71,6 +72,16 @@ static struct spi_board_info spi1_board_info[] __initdata = { {
 } };
 #endif
 
+#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+static struct mci_platform_data __initdata mci0_data = {
+        .slot[0] = {
+                .bus_width      = 4,
+                .detect_pin     = -ENODEV,
+                .wp_pin         = -ENODEV,
+        },
+};
+#endif
+
 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
 static void __init atstk1004_setup_extdac(void)
 {
@@ -89,7 +100,7 @@ static void __init atstk1004_setup_extdac(void)
                 goto err_set_clk;
         }
 
-        at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
+        at32_select_periph(GPIO_PIOA_BASE, (1 << 30), GPIO_PERIPH_A, 0);
         at73c213_data.dac_clk = gclk;
 
 err_set_clk:
@@ -137,10 +148,11 @@ static int __init atstk1004_init(void)
         at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
 #endif
 #ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
-        at32_add_device_mci(0, NULL);
+        at32_add_device_mci(0, &mci0_data);
 #endif
         at32_add_device_lcdc(0, &atstk1000_lcdc_data,
-                             fbmem_start, fbmem_size, 0);
+                             fbmem_start, fbmem_size,
+                             ATMEL_LCDC_PRI_24BIT | ATMEL_LCDC_PRI_CONTROL);
         at32_add_device_usba(0, NULL);
 #ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
         at32_add_device_ssc(0, ATMEL_SSC_TX);
diff --git a/arch/avr32/include/asm/atmel-mci.h b/arch/avr32/include/asm/atmel-mci.h
index c2ea6e1c9aa..59f3fadd0b6 100644
--- a/arch/avr32/include/asm/atmel-mci.h
+++ b/arch/avr32/include/asm/atmel-mci.h
@@ -1,9 +1,39 @@
 #ifndef __ASM_AVR32_ATMEL_MCI_H
 #define __ASM_AVR32_ATMEL_MCI_H
 
-struct mci_platform_data {
+#define ATMEL_MCI_MAX_NR_SLOTS  2
+
+struct dma_slave;
+
+/**
+ * struct mci_slot_pdata - board-specific per-slot configuration
+ * @bus_width: Number of data lines wired up the slot
+ * @detect_pin: GPIO pin wired to the card detect switch
+ * @wp_pin: GPIO pin wired to the write protect sensor
+ *
+ * If a given slot is not present on the board, @bus_width should be
+ * set to 0. The other fields are ignored in this case.
+ *
+ * Any pins that aren't available should be set to a negative value.
+ *
+ * Note that support for multiple slots is experimental -- some cards
+ * might get upset if we don't get the clock management exactly right.
+ * But in most cases, it should work just fine.
+ */
+struct mci_slot_pdata {
+        unsigned int            bus_width;
         int                     detect_pin;
         int                     wp_pin;
 };
 
+/**
+ * struct mci_platform_data - board-specific MMC/SDcard configuration
+ * @dma_slave: DMA slave interface to use in data transfers, or NULL.
+ * @slot: Per-slot configuration data.
+ */
+struct mci_platform_data {
+        struct dma_slave        *dma_slave;
+        struct mci_slot_pdata   slot[ATMEL_MCI_MAX_NR_SLOTS];
+};
+
 #endif /* __ASM_AVR32_ATMEL_MCI_H */
diff --git a/arch/avr32/include/asm/byteorder.h b/arch/avr32/include/asm/byteorder.h
index d77b48ba733..8e3af02076d 100644
--- a/arch/avr32/include/asm/byteorder.h
+++ b/arch/avr32/include/asm/byteorder.h
@@ -7,6 +7,9 @@
 #include <asm/types.h>
 #include <linux/compiler.h>
 
+#define __BIG_ENDIAN
+#define __SWAB_64_THRU_32__
+
 #ifdef __CHECKER__
 extern unsigned long __builtin_bswap_32(unsigned long x);
 extern unsigned short __builtin_bswap_16(unsigned short x);
@@ -17,15 +20,18 @@ extern unsigned short __builtin_bswap_16(unsigned short x);
  * the result.
  */
 #if !(__GNUC__ == 4 && __GNUC_MINOR__ < 2)
-#define __arch__swab32(x) __builtin_bswap_32(x)
-#define __arch__swab16(x) __builtin_bswap_16(x)
-#endif
+static inline __attribute_const__ __u16 __arch_swab16(__u16 val)
+{
+        return __builtin_bswap_16(val);
+}
+#define __arch_swab16 __arch_swab16
 
-#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
-# define __BYTEORDER_HAS_U64__
-# define __SWAB_64_THRU_32__
+static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
+{
+        return __builtin_bswap_32(val);
+}
+#define __arch_swab32 __arch_swab32
 #endif
 
-#include <linux/byteorder/big_endian.h>
-
+#include <linux/byteorder.h>
 #endif /* __ASM_AVR32_BYTEORDER_H */
diff --git a/arch/avr32/include/asm/io.h b/arch/avr32/include/asm/io.h
index a520f77ead9..22c97ef9220 100644
--- a/arch/avr32/include/asm/io.h
+++ b/arch/avr32/include/asm/io.h
@@ -160,6 +160,14 @@ BUILDIO_IOPORT(l, u32)
 #define readw_relaxed                   readw
 #define readl_relaxed                   readl
 
+#define readb_be                        __raw_readb
+#define readw_be                        __raw_readw
+#define readl_be                        __raw_readl
+
+#define writeb_be                       __raw_writeb
+#define writew_be                       __raw_writew
+#define writel_be                       __raw_writel
+
 #define __BUILD_MEMORY_STRING(bwl, type)                                \
 static inline void writes##bwl(volatile void __iomem *addr,             \
                                const void *data, unsigned int count)    \
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 2c08ac992ac..134d5302b6d 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -9,6 +9,7 @@
 #include <linux/module.h>
 #include <linux/kallsyms.h>
 #include <linux/fs.h>
+#include <linux/pm.h>
 #include <linux/ptrace.h>
 #include <linux/reboot.h>
 #include <linux/tick.h>
@@ -20,7 +21,7 @@
 
 #include <mach/pm.h>
 
-void (*pm_power_off)(void) = NULL;
+void (*pm_power_off)(void);
 EXPORT_SYMBOL(pm_power_off);
 
 /*
diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c
index d8e623c426c..5c7083916c3 100644
--- a/arch/avr32/kernel/setup.c
+++ b/arch/avr32/kernel/setup.c
@@ -283,6 +283,25 @@ static int __init early_parse_fbmem(char *p)
 }
 early_param("fbmem", early_parse_fbmem);
 
+/*
+ * Pick out the memory size.  We look for mem=size@start,
+ * where start and size are "size[KkMmGg]"
+ */
+static int __init early_mem(char *p)
+{
+        resource_size_t size, start;
+
+        start = system_ram->start;
+        size  = memparse(p, &p);
+        if (*p == '@')
+                start = memparse(p + 1, &p);
+
+        system_ram->start = start;
+        system_ram->end = system_ram->start + size - 1;
+        return 0;
+}
+early_param("mem", early_mem);
+
 static int __init parse_tag_core(struct tag *tag)
 {
         if (tag->hdr.size > 2) {
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index e01dbe4ebb4..813b6844cdf 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -82,8 +82,9 @@ static struct platform_device _name##_id##_device = {		\
         .num_resources  = ARRAY_SIZE(_name##_id##_resource),    \
 }
 
-#define select_peripheral(pin, periph, flags)                   \
-        at32_select_periph(GPIO_PIN_##pin, GPIO_##periph, flags)
+#define select_peripheral(port, pin_mask, periph, flags)        \
+        at32_select_periph(GPIO_##port##_BASE, pin_mask,        \
+                           GPIO_##periph, flags)
 
 #define DEV_CLK(_name, devname, bus, _index)                    \
 static struct clk devname##_##_name = {                         \
@@ -871,6 +872,7 @@ static struct clk atmel_psif1_pclk = {
 struct platform_device *__init at32_add_device_psif(unsigned int id)
 {
         struct platform_device *pdev;
+        u32 pin_mask;
 
         if (!(id == 0 || id == 1))
                 return NULL;
@@ -881,20 +883,22 @@ struct platform_device *__init at32_add_device_psif(unsigned int id)
 
         switch (id) {
         case 0:
+                pin_mask  = (1 << 8) | (1 << 9); /* CLOCK & DATA */
+
                 if (platform_device_add_resources(pdev, atmel_psif0_resource,
                                         ARRAY_SIZE(atmel_psif0_resource)))
                         goto err_add_resources;
                 atmel_psif0_pclk.dev = &pdev->dev;
-                select_peripheral(PA(8), PERIPH_A, 0); /* CLOCK */
-                select_peripheral(PA(9), PERIPH_A, 0); /* DATA  */
+                select_peripheral(PIOA, pin_mask, PERIPH_A, 0);
                 break;
         case 1:
+                pin_mask  = (1 << 11) | (1 << 12); /* CLOCK & DATA */
+
                 if (platform_device_add_resources(pdev, atmel_psif1_resource,
                                         ARRAY_SIZE(atmel_psif1_resource)))
                         goto err_add_resources;
                 atmel_psif1_pclk.dev = &pdev->dev;
-                select_peripheral(PB(11), PERIPH_A, 0); /* CLOCK */
-                select_peripheral(PB(12), PERIPH_A, 0); /* DATA  */
+                select_peripheral(PIOB, pin_mask, PERIPH_A, 0);
                 break;
         default:
                 return NULL;
@@ -958,26 +962,30 @@ DEV_CLK(usart, atmel_usart3, pba, 6);
 
 static inline void configure_usart0_pins(void)
 {
-        select_peripheral(PA(8),  PERIPH_B, 0); /* RXD  */
-        select_peripheral(PA(9),  PERIPH_B, 0); /* TXD  */
+        u32 pin_mask = (1 << 8) | (1 << 9); /* RXD & TXD */
+
+        select_peripheral(PIOA, pin_mask, PERIPH_B, 0);
 }
 
 static inline void configure_usart1_pins(void)
 {
-        select_peripheral(PA(17), PERIPH_A, 0); /* RXD  */
-        select_peripheral(PA(18), PERIPH_A, 0); /* TXD  */
+        u32 pin_mask = (1 << 17) | (1 << 18); /* RXD & TXD */
+
+        select_peripheral(PIOA, pin_mask, PERIPH_A, 0);
 }
 
 static inline void configure_usart2_pins(void)
 {
-        select_peripheral(PB(26), PERIPH_B, 0); /* RXD  */
-        select_peripheral(PB(27), PERIPH_B, 0); /* TXD  */
+        u32 pin_mask = (1 << 26) | (1 << 27); /* RXD & TXD */
+
+        select_peripheral(PIOB, pin_mask, PERIPH_B, 0);
 }
 
 static inline void configure_usart3_pins(void)
 {
-        select_peripheral(PB(18), PERIPH_B, 0); /* RXD  */
-        select_peripheral(PB(17), PERIPH_B, 0); /* TXD  */
+        u32 pin_mask = (1 << 18) | (1 << 17); /* RXD & TXD */
+
+        select_peripheral(PIOB, pin_mask, PERIPH_B, 0);
 }
 
 static struct platform_device *__initdata at32_usarts[4];
@@ -1057,59 +1065,69 @@ struct platform_device *__init
 at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
 {
         struct platform_device *pdev;
+        u32 pin_mask;
 
         switch (id) {
         case 0:
                 pdev = &macb0_device;
 
-                select_peripheral(PC(3),  PERIPH_A, 0); /* TXD0 */
-                select_peripheral(PC(4),  PERIPH_A, 0); /* TXD1 */
-                select_peripheral(PC(7),  PERIPH_A, 0); /* TXEN */
-                select_peripheral(PC(8),  PERIPH_A, 0); /* TXCK */
-                select_peripheral(PC(9),  PERIPH_A, 0); /* RXD0 */
-                select_peripheral(PC(10), PERIPH_A, 0); /* RXD1 */
-                select_peripheral(PC(13), PERIPH_A, 0); /* RXER */
-                select_peripheral(PC(15), PERIPH_A, 0); /* RXDV */
-                select_peripheral(PC(16), PERIPH_A, 0); /* MDC  */
-                select_peripheral(PC(17), PERIPH_A, 0); /* MDIO */
+                pin_mask  = (1 << 3);   /* TXD0 */
+                pin_mask |= (1 << 4);   /* TXD1 */
+                pin_mask |= (1 << 7);   /* TXEN */
+                pin_mask |= (1 << 8);   /* TXCK */
+                pin_mask |= (1 << 9);   /* RXD0 */
+                pin_mask |= (1 << 10);  /* RXD1 */
+                pin_mask |= (1 << 13);  /* RXER */
+                pin_mask |= (1 << 15);  /* RXDV */
+                pin_mask |= (1 << 16);  /* MDC  */
+                pin_mask |= (1 << 17);  /* MDIO */
 
                 if (!data->is_rmii) {
-                        select_peripheral(PC(0),  PERIPH_A, 0); /* COL  */
-                        select_peripheral(PC(1),  PERIPH_A, 0); /* CRS  */
-                        select_peripheral(PC(2),  PERIPH_A, 0); /* TXER */
-                        select_peripheral(PC(5),  PERIPH_A, 0); /* TXD2 */
-                        select_peripheral(PC(6),  PERIPH_A, 0); /* TXD3 */
-                        select_peripheral(PC(11), PERIPH_A, 0); /* RXD2 */
-                        select_peripheral(PC(12), PERIPH_A, 0); /* RXD3 */
-                        select_peripheral(PC(14), PERIPH_A, 0); /* RXCK */
-                        select_peripheral(PC(18), PERIPH_A, 0); /* SPD  */
+                        pin_mask |= (1 << 0);   /* COL  */
+                        pin_mask |= (1 << 1);   /* CRS  */
+                        pin_mask |= (1 << 2);   /* TXER */
+                        pin_mask |= (1 << 5);   /* TXD2 */
+                        pin_mask |= (1 << 6);   /* TXD3 */
+                        pin_mask |= (1 << 11);  /* RXD2 */
+                        pin_mask |= (1 << 12);  /* RXD3 */
+                        pin_mask |= (1 << 14);  /* RXCK */
+                        pin_mask |= (1 << 18);  /* SPD  */
                 }
+
+                select_peripheral(PIOC, pin_mask, PERIPH_A, 0);
+
                 break;
 
         case 1:
                 pdev = &macb1_device;
 
-                select_peripheral(PD(13), PERIPH_B, 0);         /* TXD0 */
-                select_peripheral(PD(14), PERIPH_B, 0);         /* TXD1 */
-                select_peripheral(PD(11), PERIPH_B, 0);         /* TXEN */
-                select_peripheral(PD(12), PERIPH_B, 0);         /* TXCK */
-                select_peripheral(PD(10), PERIPH_B, 0);         /* RXD0 */
-                select_peripheral(PD(6),  PERIPH_B, 0);         /* RXD1 */
-                select_peripheral(PD(5),  PERIPH_B, 0);         /* RXER */
-                select_peripheral(PD(4),  PERIPH_B, 0);         /* RXDV */
-                select_peripheral(PD(3),  PERIPH_B, 0);         /* MDC  */
-                select_peripheral(PD(2),  PERIPH_B, 0);         /* MDIO */
+                pin_mask  = (1 << 13);  /* TXD0 */
+                pin_mask |= (1 << 14);  /* TXD1 */
+                pin_mask |= (1 << 11);  /* TXEN */
+                pin_mask |= (1 << 12);  /* TXCK */
+                pin_mask |= (1 << 10);  /* RXD0 */
+                pin_mask |= (1 << 6);   /* RXD1 */
+                pin_mask |= (1 << 5);   /* RXER */
+                pin_mask |= (1 << 4);   /* RXDV */
+                pin_mask |= (1 << 3);   /* MDC  */
+                pin_mask |= (1 << 2);   /* MDIO */
+
+                if (!data->is_rmii)
+                        pin_mask |= (1 << 15);  /* SPD  */
+
+                select_peripheral(PIOD, pin_mask, PERIPH_B, 0);
 
                 if (!data->is_rmii) {
-                        select_peripheral(PC(19), PERIPH_B, 0); /* COL  */
-                        select_peripheral(PC(23), PERIPH_B, 0); /* CRS  */
-                        select_peripheral(PC(26), PERIPH_B, 0); /* TXER */
-                        select_peripheral(PC(27), PERIPH_B, 0); /* TXD2 */
-                        select_peripheral(PC(28), PERIPH_B, 0); /* TXD3 */
-                        select_peripheral(PC(29), PERIPH_B, 0); /* RXD2 */
-                        select_peripheral(PC(30), PERIPH_B, 0); /* RXD3 */
-                        select_peripheral(PC(24), PERIPH_B, 0); /* RXCK */
-                        select_peripheral(PD(15), PERIPH_B, 0); /* SPD  */
+                        pin_mask  = (1 << 19);  /* COL  */
+                        pin_mask |= (1 << 23);  /* CRS  */
+                        pin_mask |= (1 << 26);  /* TXER */
+                        pin_mask |= (1 << 27);  /* TXD2 */
+                        pin_mask |= (1 << 28);  /* TXD3 */
+                        pin_mask |= (1 << 29);  /* RXD2 */
+                        pin_mask |= (1 << 30);  /* RXD3 */
+                        pin_mask |= (1 << 24);  /* RXCK */
+
+                        select_peripheral(PIOC, pin_mask, PERIPH_B, 0);
                 }
                 break;
 
@@ -1177,23 +1195,28 @@ at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n)
                 { GPIO_PIN_PB(2), GPIO_PIN_PB(3),
                   GPIO_PIN_PB(4), GPIO_PIN_PA(27), };
         struct platform_device *pdev;
+        u32 pin_mask;
 
         switch (id) {
         case 0:
                 pdev = &atmel_spi0_device;
+                pin_mask  = (1 << 1) | (1 << 2);        /* MOSI & SCK */
+
                 /* pullup MISO so a level is always defined */
-                select_peripheral(PA(0),  PERIPH_A, AT32_GPIOF_PULLUP);
-                select_peripheral(PA(1),  PERIPH_A, 0); /* MOSI  */
-                select_peripheral(PA(2),  PERIPH_A, 0); /* SCK   */
+                select_peripheral(PIOA, (1 << 0), PERIPH_A, AT32_GPIOF_PULLUP);
+                select_peripheral(PIOA, pin_mask, PERIPH_A, 0);
+
                 at32_spi_setup_slaves(0, b, n, spi0_pins);
                 break;
 
         case 1:
                 pdev = &atmel_spi1_device;
+                pin_mask  = (1 << 1) | (1 << 5);        /* MOSI */
+
                 /* pullup MISO so a level is always defined */
-                select_peripheral(PB(0),  PERIPH_B, AT32_GPIOF_PULLUP);
-                select_peripheral(PB(1),  PERIPH_B, 0); /* MOSI  */
-                select_peripheral(PB(5),  PERIPH_B, 0); /* SCK   */
+                select_peripheral(PIOB, (1 << 0), PERIPH_B, AT32_GPIOF_PULLUP);
+                select_peripheral(PIOB, pin_mask, PERIPH_B, 0);
+
                 at32_spi_setup_slaves(1, b, n, spi1_pins);
                 break;
 
@@ -1226,6 +1249,7 @@ struct platform_device *__init at32_add_device_twi(unsigned int id,
                                                     unsigned int n)
 {
         struct platform_device *pdev;
+        u32 pin_mask;
 
         if (id != 0)
                 return NULL;
@@ -1238,8 +1262,9 @@ struct platform_device *__init at32_add_device_twi(unsigned int id,
                                 ARRAY_SIZE(atmel_twi0_resource)))
                 goto err_add_resources;
 
-        select_peripheral(PA(6),  PERIPH_A, 0); /* SDA  */
-        select_peripheral(PA(7),  PERIPH_A, 0); /* SDL  */
+        pin_mask  = (1 << 6) | (1 << 7);        /* SDA & SDL */
+
+        select_peripheral(PIOA, pin_mask, PERIPH_A, 0);
 
         atmel_twi0_pclk.dev = &pdev->dev;
 
@@ -1272,10 +1297,16 @@ static struct clk atmel_mci0_pclk = {
 struct platform_device *__init
 at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
 {
-        struct mci_platform_data        _data;
         struct platform_device          *pdev;
+        struct dw_dma_slave             *dws;
+        u32                             pioa_mask;
+        u32                             piob_mask;
 
-        if (id != 0)
+        if (id != 0 || !data)
+                return NULL;
+
+        /* Must have at least one usable slot */
+        if (!data->slot[0].bus_width && !data->slot[1].bus_width)
                 return NULL;
 
         pdev = platform_device_alloc("atmel_mci", id);
@@ -1286,28 +1317,80 @@ at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
                                 ARRAY_SIZE(atmel_mci0_resource)))
                 goto fail;
 
-        if (!data) {
-                data = &_data;
-                memset(data, -1, sizeof(struct mci_platform_data));
-                data->detect_pin = GPIO_PIN_NONE;
-                data->wp_pin = GPIO_PIN_NONE;
-        }
+        if (data->dma_slave)
+                dws = kmemdup(to_dw_dma_slave(data->dma_slave),
+                                sizeof(struct dw_dma_slave), GFP_KERNEL);
+        else
+                dws = kzalloc(sizeof(struct dw_dma_slave), GFP_KERNEL);
+
+        dws->slave.dev = &pdev->dev;
+        dws->slave.dma_dev = &dw_dmac0_device.dev;
+        dws->slave.reg_width = DMA_SLAVE_WIDTH_32BIT;
+        dws->cfg_hi = (DWC_CFGH_SRC_PER(0)
+                                | DWC_CFGH_DST_PER(1));
+        dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL
+                                | DWC_CFGL_HS_SRC_POL);
+
+        data->dma_slave = &dws->slave;
 
         if (platform_device_add_data(pdev, data,
                                 sizeof(struct mci_platform_data)))
                 goto fail;
 
-        select_peripheral(PA(10), PERIPH_A, 0); /* CLK   */
-        select_peripheral(PA(11), PERIPH_A, 0); /* CMD   */
-        select_peripheral(PA(12), PERIPH_A, 0); /* DATA0 */
-        select_peripheral(PA(13), PERIPH_A, 0); /* DATA1 */
-        select_peripheral(PA(14), PERIPH_A, 0); /* DATA2 */
-        select_peripheral(PA(15), PERIPH_A, 0); /* DATA3 */
+        /* CLK line is common to both slots */
+        pioa_mask = 1 << 10;
 
-        if (gpio_is_valid(data->detect_pin))
-                at32_select_gpio(data->detect_pin, 0);
-        if (gpio_is_valid(data->wp_pin))
-                at32_select_gpio(data->wp_pin, 0);
+        switch (data->slot[0].bus_width) {
+        case 4:
+                pioa_mask |= 1 << 13;           /* DATA1 */
+                pioa_mask |= 1 << 14;           /* DATA2 */
+                pioa_mask |= 1 << 15;           /* DATA3 */
+                /* fall through */
+        case 1:
+                pioa_mask |= 1 << 11;           /* CMD   */
+                pioa_mask |= 1 << 12;           /* DATA0 */
+
+                if (gpio_is_valid(data->slot[0].detect_pin))
+                        at32_select_gpio(data->slot[0].detect_pin, 0);
+                if (gpio_is_valid(data->slot[0].wp_pin))
+                        at32_select_gpio(data->slot[0].wp_pin, 0);
+                break;
+        case 0:
+                /* Slot is unused */
+                break;
+        default:
+                goto fail;
+        }
+
+        select_peripheral(PIOA, pioa_mask, PERIPH_A, 0);
+        piob_mask = 0;
+
+        switch (data->slot[1].bus_width) {
+        case 4:
+                piob_mask |= 1 <<  8;           /* DATA1 */
+                piob_mask |= 1 <<  9;           /* DATA2 */
+                piob_mask |= 1 << 10;           /* DATA3 */
+                /* fall through */
+        case 1:
+                piob_mask |= 1 <<  6;           /* CMD   */
+                piob_mask |= 1 <<  7;           /* DATA0 */
+                select_peripheral(PIOB, piob_mask, PERIPH_B, 0);
+
+                if (gpio_is_valid(data->slot[1].detect_pin))
+                        at32_select_gpio(data->slot[1].detect_pin, 0);
+                if (gpio_is_valid(data->slot[1].wp_pin))
+                        at32_select_gpio(data->slot[1].wp_pin, 0);
+                break;
+        case 0:
+                /* Slot is unused */
+                break;
+        default:
+                if (!data->slot[0].bus_width)
+                        goto fail;
+
+                data->slot[1].bus_width = 0;
+                break;
+        }
 
         atmel_mci0_pclk.dev = &pdev->dev;
 
@@ -1353,13 +1436,14 @@ static struct clk atmel_lcdfb0_pixclk = {
 struct platform_device *__init
 at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
                      unsigned long fbmem_start, unsigned long fbmem_len,
-                     unsigned int pin_config)
+                     u64 pin_mask)
 {
         struct platform_device *pdev;
         struct atmel_lcdfb_info *info;
         struct fb_monspecs *monspecs;
         struct fb_videomode *modedb;
         unsigned int modedb_size;
+        u32 portc_mask, portd_mask, porte_mask;
 
         /*
          * Do a deep copy of the fb data, monspecs and modedb. Make
@@ -1381,76 +1465,21 @@ at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
         case 0:
                 pdev = &atmel_lcdfb0_device;
 
-                switch (pin_config) {
-                case 0:
-                        select_peripheral(PC(19), PERIPH_A, 0); /* CC     */
-                        select_peripheral(PC(20), PERIPH_A, 0); /* HSYNC  */
-                        select_peripheral(PC(21), PERIPH_A, 0); /* PCLK   */
-                        select_peripheral(PC(22), PERIPH_A, 0); /* VSYNC  */
-                        select_peripheral(PC(23), PERIPH_A, 0); /* DVAL   */
-                        select_peripheral(PC(24), PERIPH_A, 0); /* MODE   */
-                        select_peripheral(PC(25), PERIPH_A, 0); /* PWR    */
-                        select_peripheral(PC(26), PERIPH_A, 0); /* DATA0  */
-                        select_peripheral(PC(27), PERIPH_A, 0); /* DATA1  */
-                        select_peripheral(PC(28), PERIPH_A, 0); /* DATA2  */
-                        select_peripheral(PC(29), PERIPH_A, 0); /* DATA3  */
-                        select_peripheral(PC(30), PERIPH_A, 0); /* DATA4  */
-                        select_peripheral(PC(31), PERIPH_A, 0); /* DATA5  */
-                        select_peripheral(PD(0),  PERIPH_A, 0); /* DATA6  */
-                        select_peripheral(PD(1),  PERIPH_A, 0); /* DATA7  */
-                        select_peripheral(PD(2),  PERIPH_A, 0); /* DATA8  */
-                        select_peripheral(PD(3),  PERIPH_A, 0); /* DATA9  */
-                        select_peripheral(PD(4),  PERIPH_A, 0); /* DATA10 */
-                        select_peripheral(PD(5),  PERIPH_A, 0); /* DATA11 */
-                        select_peripheral(PD(6),  PERIPH_A, 0); /* DATA12 */
-                        select_peripheral(PD(7),  PERIPH_A, 0); /* DATA13 */
-                        select_peripheral(PD(8),  PERIPH_A, 0); /* DATA14 */
-                        select_peripheral(PD(9),  PERIPH_A, 0); /* DATA15 */
-                        select_peripheral(PD(10), PERIPH_A, 0); /* DATA16 */
-                        select_peripheral(PD(11), PERIPH_A, 0); /* DATA17 */
-                        select_peripheral(PD(12), PERIPH_A, 0); /* DATA18 */
-                        select_peripheral(PD(13), PERIPH_A, 0); /* DATA19 */
-                        select_peripheral(PD(14), PERIPH_A, 0); /* DATA20 */
-                        select_peripheral(PD(15), PERIPH_A, 0); /* DATA21 */
-                        select_peripheral(PD(16), PERIPH_A, 0); /* DATA22 */
-                        select_peripheral(PD(17), PERIPH_A, 0); /* DATA23 */
-                        break;
-                case 1:
-                        select_peripheral(PE(0),  PERIPH_B, 0); /* CC     */
-                        select_peripheral(PC(20), PERIPH_A, 0); /* HSYNC  */
-                        select_peripheral(PC(21), PERIPH_A, 0); /* PCLK   */
-                        select_peripheral(PC(22), PERIPH_A, 0); /* VSYNC  */
-                        select_peripheral(PE(1),  PERIPH_B, 0); /* DVAL   */
-                        select_peripheral(PE(2),  PERIPH_B, 0); /* MODE   */
-                        select_peripheral(PC(25), PERIPH_A, 0); /* PWR    */
-                        select_peripheral(PE(3),  PERIPH_B, 0); /* DATA0  */
-                        select_peripheral(PE(4),  PERIPH_B, 0); /* DATA1  */
-                        select_peripheral(PE(5),  PERIPH_B, 0); /* DATA2  */
-                        select_peripheral(PE(6),  PERIPH_B, 0); /* DATA3  */
-                        select_peripheral(PE(7),  PERIPH_B, 0); /* DATA4  */
-                        select_peripheral(PC(31), PERIPH_A, 0); /* DATA5  */
-                        select_peripheral(PD(0),  PERIPH_A, 0); /* DATA6  */
-                        select_peripheral(PD(1),  PERIPH_A, 0); /* DATA7  */
-                        select_peripheral(PE(8),  PERIPH_B, 0); /* DATA8  */
-                        select_peripheral(PE(9),  PERIPH_B, 0); /* DATA9  */
-                        select_peripheral(PE(10), PERIPH_B, 0); /* DATA10 */
-                        select_peripheral(PE(11), PERIPH_B, 0); /* DATA11 */
-                        select_peripheral(PE(12), PERIPH_B, 0); /* DATA12 */
-                        select_peripheral(PD(7),  PERIPH_A, 0); /* DATA13 */
-                        select_peripheral(PD(8),  PERIPH_A, 0); /* DATA14 */
-                        select_peripheral(PD(9),  PERIPH_A, 0); /* DATA15 */
-                        select_peripheral(PE(13), PERIPH_B, 0); /* DATA16 */
-                        select_peripheral(PE(14), PERIPH_B, 0); /* DATA17 */
-                        select_peripheral(PE(15), PERIPH_B, 0); /* DATA18 */
-                        select_peripheral(PE(16), PERIPH_B, 0); /* DATA19 */
-                        select_peripheral(PE(17), PERIPH_B, 0); /* DATA20 */
-                        select_peripheral(PE(18), PERIPH_B, 0); /* DATA21 */
-                        select_peripheral(PD(16), PERIPH_A, 0); /* DATA22 */
-                        select_peripheral(PD(17), PERIPH_A, 0); /* DATA23 */
-                        break;
-                default:
-                        goto err_invalid_id;
-                }
+                if (pin_mask == 0ULL)
+                        /* Default to "full" lcdc control signals and 24bit */
+                        pin_mask = ATMEL_LCDC_PRI_24BIT | ATMEL_LCDC_PRI_CONTROL;
+
+                /* LCDC on port C */
+                portc_mask = (pin_mask & 0xfff80000) >> 19;
+                select_peripheral(PIOC, portc_mask, PERIPH_A, 0);
+
+                /* LCDC on port D */
+                portd_mask = pin_mask & 0x0003ffff;
+                select_peripheral(PIOD, portd_mask, PERIPH_A, 0);
+
+                /* LCDC on port E */
+                porte_mask = (pin_mask >> 32) & 0x0007ffff;
+                select_peripheral(PIOE, porte_mask, PERIPH_B, 0);
 
                 clk_set_parent(&atmel_lcdfb0_pixclk, &pll0);
                 clk_set_rate(&atmel_lcdfb0_pixclk, clk_get_rate(&pll0));
@@ -1499,6 +1528,7 @@ static struct clk atmel_pwm0_mck = {
 struct platform_device *__init at32_add_device_pwm(u32 mask)
 {
         struct platform_device *pdev;
+        u32 pin_mask;
 
         if (!mask)
                 return NULL;
@@ -1514,14 +1544,21 @@ struct platform_device *__init at32_add_device_pwm(u32 mask)
         if (platform_device_add_data(pdev, &mask, sizeof(mask)))
                 goto out_free_pdev;
 
+        pin_mask = 0;
         if (mask & (1 << 0))
-                select_peripheral(PA(28), PERIPH_A, 0);
+                pin_mask |= (1 << 28);
         if (mask & (1 << 1))
-                select_peripheral(PA(29), PERIPH_A, 0);
+                pin_mask |= (1 << 29);
+        if (pin_mask > 0)
+                select_peripheral(PIOA, pin_mask, PERIPH_A, 0);
+
+        pin_mask = 0;
         if (mask & (1 << 2))
-                select_peripheral(PA(21), PERIPH_B, 0);
+                pin_mask |= (1 << 21);
         if (mask & (1 << 3))
-                select_peripheral(PA(22), PERIPH_B, 0);
+                pin_mask |= (1 << 22);
+        if (pin_mask > 0)
+                select_peripheral(PIOA, pin_mask, PERIPH_B, 0);
 
         atmel_pwm0_mck.dev = &pdev->dev;
 
@@ -1562,52 +1599,65 @@ struct platform_device *__init
 at32_add_device_ssc(unsigned int id, unsigned int flags)
 {
         struct platform_device *pdev;
+        u32 pin_mask = 0;
 
         switch (id) {
         case 0:
                 pdev = &ssc0_device;
                 if (flags & ATMEL_SSC_RF)
-                        select_peripheral(PA(21), PERIPH_A, 0); /* RF */
+                        pin_mask |= (1 << 21);  /* RF */
                 if (flags & ATMEL_SSC_RK)
-                        select_peripheral(PA(22), PERIPH_A, 0); /* RK */
+                        pin_mask |= (1 << 22);  /* RK */
                 if (flags & ATMEL_SSC_TK)
-                        select_peripheral(PA(23), PERIPH_A, 0); /* TK */
+                        pin_mask |= (1 << 23);  /* TK */
                 if (flags & ATMEL_SSC_TF)
-                        select_peripheral(PA(24), PERIPH_A, 0); /* TF */
+                        pin_mask |= (1 << 24);  /* TF */
                 if (flags & ATMEL_SSC_TD)
-                        select_peripheral(PA(25), PERIPH_A, 0); /* TD */
+                        pin_mask |= (1 << 25);  /* TD */
                 if (flags & ATMEL_SSC_RD)
-                        select_peripheral(PA(26), PERIPH_A, 0); /* RD */
+                        pin_mask |= (1 << 26);  /* RD */
+
+                if (pin_mask > 0)
+                        select_peripheral(PIOA, pin_mask, PERIPH_A, 0);
+
                 break;
         case 1:
                 pdev = &ssc1_device;
                 if (flags & ATMEL_SSC_RF)
-                        select_peripheral(PA(0), PERIPH_B, 0);  /* RF */
+                        pin_mask |= (1 << 0);   /* RF */
                 if (flags & ATMEL_SSC_RK)
-                        select_peripheral(PA(1), PERIPH_B, 0);  /* RK */
+                        pin_mask |= (1 << 1);   /* RK */
                 if (flags & ATMEL_SSC_TK)
-                        select_peripheral(PA(2), PERIPH_B, 0);  /* TK */
+                        pin_mask |= (1 << 2);   /* TK */
                 if (flags & ATMEL_SSC_TF)
-                        select_peripheral(PA(3), PERIPH_B, 0);  /* TF */
+                        pin_mask |= (1 << 3);   /* TF */
                 if (flags & ATMEL_SSC_TD)
-                        select_peripheral(PA(4), PERIPH_B, 0);  /* TD */
+                        pin_mask |= (1 << 4);   /* TD */
                 if (flags & ATMEL_SSC_RD)
-                        select_peripheral(PA(5), PERIPH_B, 0);  /* RD */
+                        pin_mask |= (1 << 5);   /* RD */
+
+                if (pin_mask > 0)
+                        select_peripheral(PIOA, pin_mask, PERIPH_B, 0);
+
                 break;
         case 2:
                 pdev = &ssc2_device;
                 if (flags & ATMEL_SSC_TD)
-                        select_peripheral(PB(13), PERIPH_A, 0); /* TD */
+                        pin_mask |= (1 << 13);  /* TD */
                 if (flags & ATMEL_SSC_RD)
-                        select_peripheral(PB(14), PERIPH_A, 0); /* RD */
+                        pin_mask |= (1 << 14);  /* RD */
                 if (flags & ATMEL_SSC_TK)
-                        select_peripheral(PB(15), PERIPH_A, 0); /* TK */
+                        pin_mask |= (1 << 15);  /* TK */
                 if (flags & ATMEL_SSC_TF)
-                        select_peripheral(PB(16), PERIPH_A, 0); /* TF */
+                        pin_mask |= (1 << 16);  /* TF */
                 if (flags & ATMEL_SSC_RF)
-                        select_peripheral(PB(17), PERIPH_A, 0); /* RF */
+                        pin_mask |= (1 << 17);  /* RF */
                 if (flags & ATMEL_SSC_RK)
-                        select_peripheral(PB(18), PERIPH_A, 0); /* RK */
+                        pin_mask |= (1 << 18);  /* RK */
+
+                if (pin_mask > 0)
+                        select_peripheral(PIOB, pin_mask, PERIPH_A, 0);
+
                 break;
         default:
                 return NULL;
@@ -1745,14 +1795,15 @@ static int __init at32_init_ide_or_cf(struct platform_device *pdev,
                 unsigned int cs, unsigned int extint)
 {
         static unsigned int extint_pin_map[4] __initdata = {
-                GPIO_PIN_PB(25),
-                GPIO_PIN_PB(26),
-                GPIO_PIN_PB(27),
-                GPIO_PIN_PB(28),
+                (1 << 25),
+                (1 << 26),
+                (1 << 27),
+                (1 << 28),
         };
         static bool common_pins_initialized __initdata = false;
         unsigned int extint_pin;
         int ret;
+        u32 pin_mask;
 
         if (extint >= ARRAY_SIZE(extint_pin_map))
                 return -EINVAL;
@@ -1766,7 +1817,8 @@ static int __init at32_init_ide_or_cf(struct platform_device *pdev,
                 if (ret)
                         return ret;
 
-                select_peripheral(PE(21), PERIPH_A, 0); /* NCS4   -> OE_N  */
+                /* NCS4   -> OE_N  */
+                select_peripheral(PIOE, (1 << 21), PERIPH_A, 0);
                 hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, HMATRIX_EBI_CF0_ENABLE);
                 break;
         case 5:
@@ -1776,7 +1828,8 @@ static int __init at32_init_ide_or_cf(struct platform_device *pdev,
                 if (ret)
                         return ret;
 
-                select_peripheral(PE(22), PERIPH_A, 0); /* NCS5   -> OE_N  */
+                /* NCS5   -> OE_N  */
+                select_peripheral(PIOE, (1 << 22), PERIPH_A, 0);
                 hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, HMATRIX_EBI_CF1_ENABLE);
                 break;
         default:
@@ -1784,14 +1837,17 @@ static int __init at32_init_ide_or_cf(struct platform_device *pdev,
         }
 
         if (!common_pins_initialized) {
-                select_peripheral(PE(19), PERIPH_A, 0); /* CFCE1  -> CS0_N */
-                select_peripheral(PE(20), PERIPH_A, 0); /* CFCE2  -> CS1_N */
-                select_peripheral(PE(23), PERIPH_A, 0); /* CFRNW  -> DIR   */
-                select_peripheral(PE(24), PERIPH_A, 0); /* NWAIT  <- IORDY */
+                pin_mask  = (1 << 19);  /* CFCE1  -> CS0_N */
+                pin_mask |= (1 << 20);  /* CFCE2  -> CS1_N */
+                pin_mask |= (1 << 23);  /* CFRNW  -> DIR   */
+                pin_mask |= (1 << 24);  /* NWAIT  <- IORDY */
+
+                select_peripheral(PIOE, pin_mask, PERIPH_A, 0);
+
                 common_pins_initialized = true;
         }
 
-        at32_select_periph(extint_pin, GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
+        select_peripheral(PIOB, extint_pin, PERIPH_A, AT32_GPIOF_DEGLITCH);
 
         pdev->resource[1].start = EIM_IRQ_BASE + extint;
         pdev->resource[1].end = pdev->resource[1].start;
@@ -1930,6 +1986,7 @@ at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data)
 {
         struct platform_device *pdev;
         struct ac97c_platform_data _data;
+        u32 pin_mask;
 
         if (id != 0)
                 return NULL;
@@ -1956,10 +2013,10 @@ at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data)
                                 sizeof(struct ac97c_platform_data)))
                 goto fail;
 
-        select_peripheral(PB(20), PERIPH_B, 0); /* SDO  */
-        select_peripheral(PB(21), PERIPH_B, 0); /* SYNC */
-        select_peripheral(PB(22), PERIPH_B, 0); /* SCLK */
-        select_peripheral(PB(23), PERIPH_B, 0); /* SDI  */
+        pin_mask  = (1 << 20) | (1 << 21);      /* SDO & SYNC */
+        pin_mask |= (1 << 22) | (1 << 23);      /* SCLK & SDI */
+
+        select_peripheral(PIOB, pin_mask, PERIPH_B, 0);
 
         /* TODO: gpio_is_valid(data->reset_pin) with kernel 2.6.26. */
         if (data->reset_pin != GPIO_PIN_NONE)
@@ -2001,6 +2058,7 @@ static struct clk abdac0_sample_clk = {
 struct platform_device *__init at32_add_device_abdac(unsigned int id)
 {
         struct platform_device *pdev;
+        u32 pin_mask;
 
         if (id != 0)
                 return NULL;
@@ -2013,10 +2071,10 @@ struct platform_device *__init at32_add_device_abdac(unsigned int id)
                                 ARRAY_SIZE(abdac0_resource)))
                 goto err_add_resources;
 
-        select_peripheral(PB(20), PERIPH_A, 0); /* DATA1        */
-        select_peripheral(PB(21), PERIPH_A, 0); /* DATA0        */
-        select_peripheral(PB(22), PERIPH_A, 0); /* DATAN1       */
-        select_peripheral(PB(23), PERIPH_A, 0); /* DATAN0       */
+        pin_mask  = (1 << 20) | (1 << 22);      /* DATA1 & DATAN1 */
+        pin_mask |= (1 << 21) | (1 << 23);      /* DATA0 & DATAN0 */
+
+        select_peripheral(PIOB, pin_mask, PERIPH_A, 0);
 
         abdac0_pclk.dev = &pdev->dev;
         abdac0_sample_clk.dev = &pdev->dev;
@@ -2073,7 +2131,7 @@ static struct clk gclk4 = {
         .index          = 4,
 };
 
-struct clk *at32_clock_list[] = {
+static __initdata struct clk *init_clocks[] = {
         &osc32k,
         &osc0,
         &osc1,
@@ -2137,7 +2195,6 @@ struct clk *at32_clock_list[] = {
         &gclk3,
         &gclk4,
 };
-unsigned int at32_nr_clocks = ARRAY_SIZE(at32_clock_list);
 
 void __init setup_platform(void)
 {
@@ -2168,14 +2225,19 @@ void __init setup_platform(void)
         genclk_init_parent(&abdac0_sample_clk);
 
         /*
-         * Turn on all clocks that have at least one user already, and
-         * turn off everything else. We only do this for module
-         * clocks, and even though it isn't particularly pretty to
-         * check the address of the mode function, it should do the
-         * trick...
+         * Build initial dynamic clock list by registering all clocks
+         * from the array.
+         * At the same time, turn on all clocks that have at least one
+         * user already, and turn off everything else. We only do this
+         * for module clocks, and even though it isn't particularly
+         * pretty to  check the address of the mode function, it should
+         * do the trick...
          */
-        for (i = 0; i < ARRAY_SIZE(at32_clock_list); i++) {
-                struct clk *clk = at32_clock_list[i];
+        for (i = 0; i < ARRAY_SIZE(init_clocks); i++) {
+                struct clk *clk = init_clocks[i];
+
+                /* first, register clock */
+                at32_clk_register(clk);
 
                 if (clk->users == 0)
                         continue;
diff --git a/arch/avr32/mach-at32ap/clock.c b/arch/avr32/mach-at32ap/clock.c
index 6c27ddac5ad..138a00a2a2d 100644
--- a/arch/avr32/mach-at32ap/clock.c
+++ b/arch/avr32/mach-at32ap/clock.c
@@ -15,24 +15,40 @@
 #include <linux/err.h>
 #include <linux/device.h>
 #include <linux/string.h>
+#include <linux/list.h>
 
 #include <mach/chip.h>
 
 #include "clock.h"
 
+/* at32 clock list */
+static LIST_HEAD(at32_clock_list);
+
 static DEFINE_SPINLOCK(clk_lock);
+static DEFINE_SPINLOCK(clk_list_lock);
+
+void at32_clk_register(struct clk *clk)
+{
+        spin_lock(&clk_list_lock);
+        /* add the new item to the end of the list */
+        list_add_tail(&clk->list, &at32_clock_list);
+        spin_unlock(&clk_list_lock);
+}
 
 struct clk *clk_get(struct device *dev, const char *id)
 {
-        int i;
+        struct clk *clk;
 
-        for (i = 0; i < at32_nr_clocks; i++) {
-                struct clk *clk = at32_clock_list[i];
+        spin_lock(&clk_list_lock);
 
-                if (clk->dev == dev && strcmp(id, clk->name) == 0)
+        list_for_each_entry(clk, &at32_clock_list, list) {
+                if (clk->dev == dev && strcmp(id, clk->name) == 0) {
+                        spin_unlock(&clk_list_lock);
                         return clk;
+                }
         }
 
+        spin_unlock(&clk_list_lock);
         return ERR_PTR(-ENOENT);
 }
 EXPORT_SYMBOL(clk_get);
@@ -203,8 +219,8 @@ dump_clock(struct clk *parent, struct clkinf *r)
 
         /* cost of this scan is small, but not linear... */
         r->nest = nest + NEST_DELTA;
-        for (i = 3; i < at32_nr_clocks; i++) {
-                clk = at32_clock_list[i];
+
+        list_for_each_entry(clk, &at32_clock_list, list) {
                 if (clk->parent == parent)
                         dump_clock(clk, r);
         }
@@ -215,6 +231,7 @@ static int clk_show(struct seq_file *s, void *unused)
 {
         struct clkinf   r;
         int             i;
+        struct clk      *clk;
 
         /* show all the power manager registers */
         seq_printf(s, "MCCTRL  = %8x\n", pm_readl(MCCTRL));
@@ -234,14 +251,25 @@ static int clk_show(struct seq_file *s, void *unused)
 
         seq_printf(s, "\n");
 
-        /* show clock tree as derived from the three oscillators
-         * we "know" are at the head of the list
-         */
         r.s = s;
         r.nest = 0;
-        dump_clock(at32_clock_list[0], &r);
-        dump_clock(at32_clock_list[1], &r);
-        dump_clock(at32_clock_list[2], &r);
+        /* protected from changes on the list while dumping */
+        spin_lock(&clk_list_lock);
+
+        /* show clock tree as derived from the three oscillators */
+        clk = clk_get(NULL, "osc32k");
+        dump_clock(clk, &r);
+        clk_put(clk);
+
+        clk = clk_get(NULL, "osc0");
+        dump_clock(clk, &r);
+        clk_put(clk);
+
+        clk = clk_get(NULL, "osc1");
+        dump_clock(clk, &r);
+        clk_put(clk);
+
+        spin_unlock(&clk_list_lock);
 
         return 0;
 }
diff --git a/arch/avr32/mach-at32ap/clock.h b/arch/avr32/mach-at32ap/clock.h
index bb8e1f29583..623bf0e9a1e 100644
--- a/arch/avr32/mach-at32ap/clock.h
+++ b/arch/avr32/mach-at32ap/clock.h
@@ -12,8 +12,13 @@
  * published by the Free Software Foundation.
  */
 #include <linux/clk.h>
+#include <linux/list.h>
+
+
+void at32_clk_register(struct clk *clk);
 
 struct clk {
+        struct list_head list;          /* linking element */
         const char      *name;          /* Clock name/function */
         struct device   *dev;           /* Device the clock is used by */
         struct clk      *parent;        /* Parent clock, if any */
@@ -25,6 +30,3 @@ struct clk {
         u16             users;          /* Enabled if non-zero */
         u16             index;          /* Sibling index */
 };
-
-extern struct clk *at32_clock_list[];
-extern unsigned int at32_nr_clocks;
diff --git a/arch/avr32/mach-at32ap/include/mach/at32ap700x.h b/arch/avr32/mach-at32ap/include/mach/at32ap700x.h
index 1e9852d65cc..a77d372f6f3 100644
--- a/arch/avr32/mach-at32ap/include/mach/at32ap700x.h
+++ b/arch/avr32/mach-at32ap/include/mach/at32ap700x.h
@@ -83,4 +83,132 @@
 #define HMATRIX_BASE    0xfff00800
 #define SDRAMC_BASE     0xfff03800
 
+/* LCDC on port C */
+#define ATMEL_LCDC_PC_CC        (1ULL << 19)
+#define ATMEL_LCDC_PC_HSYNC     (1ULL << 20)
+#define ATMEL_LCDC_PC_PCLK      (1ULL << 21)
+#define ATMEL_LCDC_PC_VSYNC     (1ULL << 22)
+#define ATMEL_LCDC_PC_DVAL      (1ULL << 23)
+#define ATMEL_LCDC_PC_MODE      (1ULL << 24)
+#define ATMEL_LCDC_PC_PWR       (1ULL << 25)
+#define ATMEL_LCDC_PC_DATA0     (1ULL << 26)
+#define ATMEL_LCDC_PC_DATA1     (1ULL << 27)
+#define ATMEL_LCDC_PC_DATA2     (1ULL << 28)
+#define ATMEL_LCDC_PC_DATA3     (1ULL << 29)
+#define ATMEL_LCDC_PC_DATA4     (1ULL << 30)
+#define ATMEL_LCDC_PC_DATA5     (1ULL << 31)
+
+/* LCDC on port D */
+#define ATMEL_LCDC_PD_DATA6     (1ULL << 0)
+#define ATMEL_LCDC_PD_DATA7     (1ULL << 1)
+#define ATMEL_LCDC_PD_DATA8     (1ULL << 2)
+#define ATMEL_LCDC_PD_DATA9     (1ULL << 3)
+#define ATMEL_LCDC_PD_DATA10    (1ULL << 4)
+#define ATMEL_LCDC_PD_DATA11    (1ULL << 5)
+#define ATMEL_LCDC_PD_DATA12    (1ULL << 6)
+#define ATMEL_LCDC_PD_DATA13    (1ULL << 7)
+#define ATMEL_LCDC_PD_DATA14    (1ULL << 8)
+#define ATMEL_LCDC_PD_DATA15    (1ULL << 9)
+#define ATMEL_LCDC_PD_DATA16    (1ULL << 10)
+#define ATMEL_LCDC_PD_DATA17    (1ULL << 11)
+#define ATMEL_LCDC_PD_DATA18    (1ULL << 12)
+#define ATMEL_LCDC_PD_DATA19    (1ULL << 13)
+#define ATMEL_LCDC_PD_DATA20    (1ULL << 14)
+#define ATMEL_LCDC_PD_DATA21    (1ULL << 15)
+#define ATMEL_LCDC_PD_DATA22    (1ULL << 16)
+#define ATMEL_LCDC_PD_DATA23    (1ULL << 17)
+
+/* LCDC on port E */
+#define ATMEL_LCDC_PE_CC        (1ULL << (32 + 0))
+#define ATMEL_LCDC_PE_DVAL      (1ULL << (32 + 1))
+#define ATMEL_LCDC_PE_MODE      (1ULL << (32 + 2))
+#define ATMEL_LCDC_PE_DATA0     (1ULL << (32 + 3))
+#define ATMEL_LCDC_PE_DATA1     (1ULL << (32 + 4))
+#define ATMEL_LCDC_PE_DATA2     (1ULL << (32 + 5))
+#define ATMEL_LCDC_PE_DATA3     (1ULL << (32 + 6))
+#define ATMEL_LCDC_PE_DATA4     (1ULL << (32 + 7))
+#define ATMEL_LCDC_PE_DATA8     (1ULL << (32 + 8))
+#define ATMEL_LCDC_PE_DATA9     (1ULL << (32 + 9))
+#define ATMEL_LCDC_PE_DATA10    (1ULL << (32 + 10))
+#define ATMEL_LCDC_PE_DATA11    (1ULL << (32 + 11))
+#define ATMEL_LCDC_PE_DATA12    (1ULL << (32 + 12))
+#define ATMEL_LCDC_PE_DATA16    (1ULL << (32 + 13))
+#define ATMEL_LCDC_PE_DATA17    (1ULL << (32 + 14))
+#define ATMEL_LCDC_PE_DATA18    (1ULL << (32 + 15))
+#define ATMEL_LCDC_PE_DATA19    (1ULL << (32 + 16))
+#define ATMEL_LCDC_PE_DATA20    (1ULL << (32 + 17))
+#define ATMEL_LCDC_PE_DATA21    (1ULL << (32 + 18))
+
+
+#define ATMEL_LCDC(PORT, PIN)   (ATMEL_LCDC_##PORT##_##PIN)
+
+
+#define ATMEL_LCDC_PRI_24B_DATA (                                       \
+                ATMEL_LCDC(PC, DATA0)  | ATMEL_LCDC(PC, DATA1)  |       \
+                ATMEL_LCDC(PC, DATA2)  | ATMEL_LCDC(PC, DATA3)  |       \
+                ATMEL_LCDC(PC, DATA4)  | ATMEL_LCDC(PC, DATA5)  |       \
+                ATMEL_LCDC(PD, DATA6)  | ATMEL_LCDC(PD, DATA7)  |       \
+                ATMEL_LCDC(PD, DATA8)  | ATMEL_LCDC(PD, DATA9)  |       \
+                ATMEL_LCDC(PD, DATA10) | ATMEL_LCDC(PD, DATA11) |       \
+                ATMEL_LCDC(PD, DATA12) | ATMEL_LCDC(PD, DATA13) |       \
+                ATMEL_LCDC(PD, DATA14) | ATMEL_LCDC(PD, DATA15) |       \
+                ATMEL_LCDC(PD, DATA16) | ATMEL_LCDC(PD, DATA17) |       \
+                ATMEL_LCDC(PD, DATA18) | ATMEL_LCDC(PD, DATA19) |       \
+                ATMEL_LCDC(PD, DATA20) | ATMEL_LCDC(PD, DATA21) |       \
+                ATMEL_LCDC(PD, DATA22) | ATMEL_LCDC(PD, DATA23))
+
+#define ATMEL_LCDC_ALT_24B_DATA (                                       \
+                ATMEL_LCDC(PE, DATA0)  | ATMEL_LCDC(PE, DATA1)  |       \
+                ATMEL_LCDC(PE, DATA2)  | ATMEL_LCDC(PE, DATA3)  |       \
+                ATMEL_LCDC(PE, DATA4)  | ATMEL_LCDC(PC, DATA5)  |       \
+                ATMEL_LCDC(PD, DATA6)  | ATMEL_LCDC(PD, DATA7)  |       \
+                ATMEL_LCDC(PE, DATA8)  | ATMEL_LCDC(PE, DATA9)  |       \
+                ATMEL_LCDC(PE, DATA10) | ATMEL_LCDC(PE, DATA11) |       \
+                ATMEL_LCDC(PE, DATA12) | ATMEL_LCDC(PD, DATA13) |       \
+                ATMEL_LCDC(PD, DATA14) | ATMEL_LCDC(PD, DATA15) |       \
+                ATMEL_LCDC(PE, DATA16) | ATMEL_LCDC(PE, DATA17) |       \
+                ATMEL_LCDC(PE, DATA18) | ATMEL_LCDC(PE, DATA19) |       \
+                ATMEL_LCDC(PE, DATA20) | ATMEL_LCDC(PE, DATA21) |       \
+                ATMEL_LCDC(PD, DATA22) | ATMEL_LCDC(PD, DATA23))
+
+#define ATMEL_LCDC_PRI_15B_DATA (                                       \
+                ATMEL_LCDC(PC, DATA0)  | ATMEL_LCDC(PC, DATA1)  |       \
+                ATMEL_LCDC(PC, DATA2)  | ATMEL_LCDC(PC, DATA3)  |       \
+                ATMEL_LCDC(PC, DATA4)  | ATMEL_LCDC(PC, DATA5)  |       \
+                ATMEL_LCDC(PD, DATA8)  | ATMEL_LCDC(PD, DATA9)  |       \
+                ATMEL_LCDC(PD, DATA10) | ATMEL_LCDC(PD, DATA11) |       \
+                ATMEL_LCDC(PD, DATA12) | ATMEL_LCDC(PD, DATA16) |       \
+                ATMEL_LCDC(PD, DATA17) | ATMEL_LCDC(PD, DATA18) |       \
+                ATMEL_LCDC(PD, DATA19) | ATMEL_LCDC(PD, DATA20))
+
+#define ATMEL_LCDC_ALT_15B_DATA (                                       \
+                ATMEL_LCDC(PE, DATA0)  | ATMEL_LCDC(PE, DATA1)  |       \
+                ATMEL_LCDC(PE, DATA2)  | ATMEL_LCDC(PE, DATA3)  |       \
+                ATMEL_LCDC(PE, DATA4)  | ATMEL_LCDC(PC, DATA5)  |       \
+                ATMEL_LCDC(PE, DATA8)  | ATMEL_LCDC(PE, DATA9)  |       \
+                ATMEL_LCDC(PE, DATA10) | ATMEL_LCDC(PE, DATA11) |       \
+                ATMEL_LCDC(PE, DATA12) | ATMEL_LCDC(PE, DATA16) |       \
+                ATMEL_LCDC(PE, DATA17) | ATMEL_LCDC(PE, DATA18) |       \
+                ATMEL_LCDC(PE, DATA19) | ATMEL_LCDC(PE, DATA20))
+
+#define ATMEL_LCDC_PRI_CONTROL (                                        \
+                ATMEL_LCDC(PC, CC)   | ATMEL_LCDC(PC, DVAL) |           \
+                ATMEL_LCDC(PC, MODE) | ATMEL_LCDC(PC, PWR))
+
+#define ATMEL_LCDC_ALT_CONTROL (                                        \
+                ATMEL_LCDC(PE, CC)   | ATMEL_LCDC(PE, DVAL) |           \
+                ATMEL_LCDC(PE, MODE) | ATMEL_LCDC(PC, PWR))
+
+#define ATMEL_LCDC_CONTROL (                                            \
+                ATMEL_LCDC(PC, HSYNC) | ATMEL_LCDC(PC, VSYNC) |         \
+                ATMEL_LCDC(PC, PCLK))
+
+#define ATMEL_LCDC_PRI_24BIT    (ATMEL_LCDC_CONTROL | ATMEL_LCDC_PRI_24B_DATA)
+
+#define ATMEL_LCDC_ALT_24BIT    (ATMEL_LCDC_CONTROL | ATMEL_LCDC_ALT_24B_DATA)
+
+#define ATMEL_LCDC_PRI_15BIT    (ATMEL_LCDC_CONTROL | ATMEL_LCDC_PRI_15B_DATA)
+
+#define ATMEL_LCDC_ALT_15BIT    (ATMEL_LCDC_CONTROL | ATMEL_LCDC_ALT_15B_DATA)
+
 #endif /* __ASM_ARCH_AT32AP700X_H__ */
diff --git a/arch/avr32/mach-at32ap/include/mach/board.h b/arch/avr32/mach-at32ap/include/mach/board.h
index e60e9076544..c48386d66bc 100644
--- a/arch/avr32/mach-at32ap/include/mach/board.h
+++ b/arch/avr32/mach-at32ap/include/mach/board.h
@@ -43,7 +43,7 @@ struct atmel_lcdfb_info;
 struct platform_device *
 at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
                      unsigned long fbmem_start, unsigned long fbmem_len,
-                     unsigned int pin_config);
+                     u64 pin_mask);
 
 struct usba_platform_data;
 struct platform_device *
diff --git a/arch/avr32/mach-at32ap/include/mach/io.h b/arch/avr32/mach-at32ap/include/mach/io.h
index 4ec6abc68ea..22ea79b7405 100644
--- a/arch/avr32/mach-at32ap/include/mach/io.h
+++ b/arch/avr32/mach-at32ap/include/mach/io.h
@@ -1,8 +1,7 @@
 #ifndef __ASM_AVR32_ARCH_AT32AP_IO_H
 #define __ASM_AVR32_ARCH_AT32AP_IO_H
 
-/* For "bizarre" halfword swapping */
-#include <linux/byteorder/swabb.h>
+#include <linux/swab.h>
 
 #if defined(CONFIG_AP700X_32_BIT_SMC)
 # define __swizzle_addr_b(addr) (addr ^ 3UL)
diff --git a/arch/avr32/mach-at32ap/include/mach/portmux.h b/arch/avr32/mach-at32ap/include/mach/portmux.h
index b1abe6b4e4e..21c79373b53 100644
--- a/arch/avr32/mach-at32ap/include/mach/portmux.h
+++ b/arch/avr32/mach-at32ap/include/mach/portmux.h
@@ -21,9 +21,10 @@
 #define AT32_GPIOF_DEGLITCH     0x00000008      /* (IN) Filter glitches */
 #define AT32_GPIOF_MULTIDRV     0x00000010      /* Enable multidriver option */
 
-void at32_select_periph(unsigned int pin, unsigned int periph,
-                        unsigned long flags);
+void at32_select_periph(unsigned int port, unsigned int pin,
+                        unsigned int periph, unsigned long flags);
 void at32_select_gpio(unsigned int pin, unsigned long flags);
+void at32_deselect_pin(unsigned int pin);
 void at32_reserve_pin(unsigned int pin);
 
 #endif /* __ASM_ARCH_PORTMUX_H__ */
diff --git a/arch/avr32/mach-at32ap/pdc.c b/arch/avr32/mach-at32ap/pdc.c
index 1040bda4fda..61ab15aae97 100644
--- a/arch/avr32/mach-at32ap/pdc.c
+++ b/arch/avr32/mach-at32ap/pdc.c
@@ -35,7 +35,6 @@ static int __init pdc_probe(struct platform_device *pdev)
 }
 
 static struct platform_driver pdc_driver = {
-        .probe          = pdc_probe,
         .driver         = {
                 .name   = "pdc",
         },
@@ -43,6 +42,6 @@ static struct platform_driver pdc_driver = {
 
 static int __init pdc_init(void)
 {
-        return platform_driver_register(&pdc_driver);
+        return platform_driver_probe(&pdc_driver, pdc_probe);
 }
 arch_initcall(pdc_init);
diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c
index 405ee6bad4c..ed81a8bcb22 100644
--- a/arch/avr32/mach-at32ap/pio.c
+++ b/arch/avr32/mach-at32ap/pio.c
@@ -50,35 +50,48 @@ static struct pio_device *gpio_to_pio(unsigned int gpio)
 }
 
 /* Pin multiplexing API */
+static DEFINE_SPINLOCK(pio_lock);
 
-void __init at32_select_periph(unsigned int pin, unsigned int periph,
-                               unsigned long flags)
+void __init at32_select_periph(unsigned int port, u32 pin_mask,
+                               unsigned int periph, unsigned long flags)
 {
         struct pio_device *pio;
-        unsigned int pin_index = pin & 0x1f;
-        u32 mask = 1 << pin_index;
 
-        pio = gpio_to_pio(pin);
+        /* assign and verify pio */
+        pio = gpio_to_pio(port);
         if (unlikely(!pio)) {
-                printk("pio: invalid pin %u\n", pin);
+                printk(KERN_WARNING "pio: invalid port %u\n", port);
                 goto fail;
         }
 
-        if (unlikely(test_and_set_bit(pin_index, &pio->pinmux_mask)
-                         || gpiochip_is_requested(&pio->chip, pin_index))) {
-                printk("%s: pin %u is busy\n", pio->name, pin_index);
+        /* Test if any of the requested pins is already muxed */
+        spin_lock(&pio_lock);
+        if (unlikely(pio->pinmux_mask & pin_mask)) {
+                printk(KERN_WARNING "%s: pin(s) busy (requested 0x%x, busy 0x%x)\n",
+                       pio->name, pin_mask, pio->pinmux_mask & pin_mask);
+                spin_unlock(&pio_lock);
                 goto fail;
         }
 
-        pio_writel(pio, PUER, mask);
+        pio->pinmux_mask |= pin_mask;
+
+        /* enable pull ups */
+        pio_writel(pio, PUER, pin_mask);
+
+        /* select either peripheral A or B */
         if (periph)
-                pio_writel(pio, BSR, mask);
+                pio_writel(pio, BSR, pin_mask);
         else
-                pio_writel(pio, ASR, mask);
+                pio_writel(pio, ASR, pin_mask);
+
+        /* enable peripheral control */
+        pio_writel(pio, PDR, pin_mask);
 
-        pio_writel(pio, PDR, mask);
+        /* Disable pull ups if not requested. */
         if (!(flags & AT32_GPIOF_PULLUP))
-                pio_writel(pio, PUDR, mask);
+                pio_writel(pio, PUDR, pin_mask);
+
+        spin_unlock(&pio_lock);
 
         return;
 
@@ -134,6 +147,25 @@ fail:
         dump_stack();
 }
 
+/*
+ * Undo a previous pin reservation. Will not affect the hardware
+ * configuration.
+ */
+void at32_deselect_pin(unsigned int pin)
+{
+        struct pio_device *pio;
+        unsigned int pin_index = pin & 0x1f;
+
+        pio = gpio_to_pio(pin);
+        if (unlikely(!pio)) {
+                printk("pio: invalid pin %u\n", pin);
+                dump_stack();
+                return;
+        }
+
+        clear_bit(pin_index, &pio->pinmux_mask);
+}
+
 /* Reserve a pin, preventing anyone else from changing its configuration. */
 void __init at32_reserve_pin(unsigned int pin)
 {
@@ -382,7 +414,6 @@ static int __init pio_probe(struct platform_device *pdev)
 }
 
 static struct platform_driver pio_driver = {
-        .probe          = pio_probe,
         .driver         = {
                 .name           = "pio",
         },
@@ -390,7 +421,7 @@ static struct platform_driver pio_driver = {
 
 static int __init pio_init(void)
 {
-        return platform_driver_register(&pio_driver);
+        return platform_driver_probe(&pio_driver, pio_probe);
 }
 postcore_initcall(pio_init);
 
diff --git a/arch/avr32/oprofile/Makefile b/arch/avr32/oprofile/Makefile
index 1fe81c3c1e8..e0eb520e028 100644
--- a/arch/avr32/oprofile/Makefile
+++ b/arch/avr32/oprofile/Makefile
@@ -5,4 +5,4 @@ oprofile-y		:= $(addprefix ../../../drivers/oprofile/,	\
                                 event_buffer.o oprofile_files.o         \
                                 oprofilefs.o oprofile_stats.o           \
                                 timer_int.o)
-oprofile-y              += op_model_avr32.o
+oprofile-y              += op_model_avr32.o backtrace.o
diff --git a/arch/avr32/oprofile/backtrace.c b/arch/avr32/oprofile/backtrace.c
new file mode 100644
index 00000000000..75d9ad6f99c
--- /dev/null
+++ b/arch/avr32/oprofile/backtrace.c
@@ -0,0 +1,81 @@
+/*
+ * AVR32 specific backtracing code for oprofile
+ *
+ * Copyright 2008 Weinmann GmbH
+ *
+ * Author: Nikolaus Voss <n.voss@weinmann.de>
+ *
+ * Based on i386 oprofile backtrace code by John Levon and David Smith
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/oprofile.h>
+#include <linux/sched.h>
+#include <linux/uaccess.h>
+
+/* The first two words of each frame on the stack look like this if we have
+ * frame pointers */
+struct frame_head {
+        unsigned long lr;
+        struct frame_head *fp;
+};
+
+/* copied from arch/avr32/kernel/process.c */
+static inline int valid_stack_ptr(struct thread_info *tinfo, unsigned long p)
+{
+        return (p > (unsigned long)tinfo)
+                && (p < (unsigned long)tinfo + THREAD_SIZE - 3);
+}
+
+/* copied from arch/x86/oprofile/backtrace.c */
+static struct frame_head *dump_user_backtrace(struct frame_head *head)
+{
+        struct frame_head bufhead[2];
+
+        /* Also check accessibility of one struct frame_head beyond */
+        if (!access_ok(VERIFY_READ, head, sizeof(bufhead)))
+                return NULL;
+        if (__copy_from_user_inatomic(bufhead, head, sizeof(bufhead)))
+                return NULL;
+
+        oprofile_add_trace(bufhead[0].lr);
+
+        /* frame pointers should strictly progress back up the stack
+         * (towards higher addresses) */
+        if (bufhead[0].fp <= head)
+                return NULL;
+
+        return bufhead[0].fp;
+}
+
+void avr32_backtrace(struct pt_regs * const regs, unsigned int depth)
+{
+        /* Get first frame pointer */
+        struct frame_head *head = (struct frame_head *)(regs->r7);
+
+        if (!user_mode(regs)) {
+#ifdef CONFIG_FRAME_POINTER
+                /*
+                 * Traverse the kernel stack from frame to frame up to
+                 * "depth" steps.
+                 */
+                while (depth-- && valid_stack_ptr(task_thread_info(current),
+                                                  (unsigned long)head)) {
+                        oprofile_add_trace(head->lr);
+                        if (head->fp <= head)
+                                break;
+                        head = head->fp;
+                }
+#endif
+        } else {
+                /* Assume we have frame pointers in user mode process */
+                while (depth-- && head)
+                        head = dump_user_backtrace(head);
+        }
+}
+
+
diff --git a/arch/avr32/oprofile/op_model_avr32.c b/arch/avr32/oprofile/op_model_avr32.c
index df42325c7f8..a3e9b3c4845 100644
--- a/arch/avr32/oprofile/op_model_avr32.c
+++ b/arch/avr32/oprofile/op_model_avr32.c
@@ -22,6 +22,8 @@
 #define AVR32_PERFCTR_IRQ_GROUP 0
 #define AVR32_PERFCTR_IRQ_LINE  1
 
+void avr32_backtrace(struct pt_regs * const regs, unsigned int depth);
+
 enum { PCCNT, PCNT0, PCNT1, NR_counter };
 
 struct avr32_perf_counter {
@@ -223,6 +225,8 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
         memcpy(ops, &avr32_perf_counter_ops,
                         sizeof(struct oprofile_operations));
 
+        ops->backtrace = avr32_backtrace;
+
         printk(KERN_INFO "oprofile: using AVR32 performance monitoring.\n");
 
         return 0;
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index a214002114e..97671dac12a 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -20,6 +20,11 @@ config GENERIC_ISA_DMA
         bool
         default y
 
+config GENERIC_GPIO
+        bool
+        help
+          Generic GPIO API support
+
 config ARCH_NO_VIRT_TO_BUS
         def_bool y
 
@@ -69,6 +74,9 @@ config SPARC
         select HAVE_OPROFILE
         select HAVE_ARCH_KGDB if !SMP
         select HAVE_ARCH_TRACEHOOK
+        select ARCH_WANT_OPTIONAL_GPIOLIB
+        select RTC_CLASS
+        select RTC_DRV_M48T59
 
 # Identify this as a Sparc32 build
 config SPARC32
@@ -204,17 +212,6 @@ config SUN_PM
           Enable power management and CPU standby features on supported
           SPARC platforms.
 
-config SUN4
-        bool "Support for SUN4 machines (disables SUN4[CDM] support)"
-        depends on !SMP
-        default n
-        help
-          Say Y here if, and only if, your machine is a sun4. Note that
-          a kernel compiled with this option will run only on sun4.
-          (And the current version will probably work only on sun4/330.)
-
-if !SUN4
-
 config PCI
         bool "Support for PCI and PS/2 keyboard/mouse"
         help
@@ -227,11 +224,6 @@ config PCI_SYSCALL
 
 source "drivers/pci/Kconfig"
 
-endif
-
-config NO_DMA
-        def_bool !PCI
-
 config SUN_OPENPROMFS
         tristate "Openprom tree appears in /proc/openprom"
         help
@@ -263,9 +255,7 @@ source "net/Kconfig"
 
 source "drivers/Kconfig"
 
-if !SUN4
 source "drivers/sbus/char/Kconfig"
-endif
 
 # This one must be before the filesystem configs. -DaveM
 
diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild
index a5f0ce734ff..2ba7183bc1f 100644
--- a/arch/sparc/include/asm/Kbuild
+++ b/arch/sparc/include/asm/Kbuild
@@ -22,7 +22,6 @@ header-y += unistd_64.h
 
 header-y += apc.h
 header-y += asi.h
-header-y += bpp.h
 header-y += display7seg.h
 header-y += envctrl.h
 header-y += fbio.h
@@ -41,5 +40,4 @@ header-y += reg_64.h
 header-y += traps.h
 header-y += uctx.h
 header-y += utrap.h
-header-y += vfc_ioctls.h
 header-y += watchdog.h
diff --git a/arch/sparc/include/asm/asmmacro.h b/arch/sparc/include/asm/asmmacro.h
index a619a4d97aa..a995bf8aba3 100644
--- a/arch/sparc/include/asm/asmmacro.h
+++ b/arch/sparc/include/asm/asmmacro.h
@@ -34,12 +34,7 @@
 /* sun4 probably wants half word accesses to ASI_SEGMAP, while sun4c+
    likes byte accesses. These are to avoid ifdef mania. */
 
-#ifdef CONFIG_SUN4
-#define lduXa   lduha
-#define stXa    stha
-#else
 #define lduXa   lduba
 #define stXa    stba
-#endif
 
 #endif /* !(_SPARC_ASMMACRO_H) */
diff --git a/arch/sparc/include/asm/bpp.h b/arch/sparc/include/asm/bpp.h
deleted file mode 100644
index 31f515e499a..00000000000
--- a/arch/sparc/include/asm/bpp.h
+++ /dev/null
@@ -1,73 +0,0 @@
-#ifndef _SPARC_BPP_H
-#define _SPARC_BPP_H
-
-/*
- * Copyright (c) 1995 Picture Elements
- *      Stephen Williams
- *      Gus Baldauf
- *
- * Linux/SPARC port by Peter Zaitcev.
- * Integration into SPARC tree by Tom Dyas.
- */
-
-#include  <linux/ioctl.h>
-
-/*
- * This is a driver that supports IEEE Std 1284-1994 communications
- * with compliant or compatible devices. It will use whatever features
- * the device supports, prefering those that are typically faster.
- *
- * When the device is opened, it is left in COMPATIBILITY mode, and
- * writes work like any printer device. The driver only attempt to
- * negotiate 1284 modes when needed so that plugs can be pulled,
- * switch boxes switched, etc., without disrupting things. It will
- * also leave the device in compatibility mode when closed.
- */
-
-
-
-/*
- * This driver also supplies ioctls to manually manipulate the
- * pins. This is great for testing devices, or writing code to deal
- * with bizzarro-mode of the ACME Special TurboThingy Plus.
- *
- * NOTE: These ioctl currently do not interact well with
- * read/write. Caveat emptor.
- *
- * PUT_PINS allows us to assign the sense of all the pins, including
- * the data pins if being driven by the host. The GET_PINS returns the
- * pins that the peripheral drives, including data if appropriate.
- */
-
-# define BPP_PUT_PINS _IOW('B', 1, int)
-# define BPP_GET_PINS _IOR('B', 2, char) /* that's bogus - should've been _IO */
-# define BPP_PUT_DATA _IOW('B', 3, int)
-# define BPP_GET_DATA _IOR('B', 4, char) /* ditto */
-
-/*
- * Set the data bus to input mode. Disengage the data bin driver and
- * be prepared to read values from the peripheral. If the arg is 0,
- * then revert the bus to output mode.
- */
-# define BPP_SET_INPUT _IOW('B', 5, int)
-
-/*
- * These bits apply to the PUT operation...
- */
-# define BPP_PP_nStrobe   0x0001
-# define BPP_PP_nAutoFd   0x0002
-# define BPP_PP_nInit     0x0004
-# define BPP_PP_nSelectIn 0x0008
-
-/*
- * These apply to the GET operation, which also reads the current value
- * of the previously put values. A bit mask of these will be returned
- * as a bit mask in the return code of the ioctl().
- */
-# define BPP_GP_nAck   0x0100
-# define BPP_GP_Busy   0x0200
-# define BPP_GP_PError 0x0400
-# define BPP_GP_Select 0x0800
-# define BPP_GP_nFault 0x1000
-
-#endif
diff --git a/arch/sparc/include/asm/bugs.h b/arch/sparc/include/asm/bugs.h
index e179bc12f64..61d86bbbe2b 100644
--- a/arch/sparc/include/asm/bugs.h
+++ b/arch/sparc/include/asm/bugs.h
@@ -7,10 +7,6 @@
 #include <asm/cpudata.h>
 #endif
 
-#ifdef CONFIG_SPARC64
-#include <asm/sstate.h>
-#endif
-
 extern unsigned long loops_per_jiffy;
 
 static void __init check_bugs(void)
@@ -18,7 +14,4 @@ static void __init check_bugs(void)
 #if defined(CONFIG_SPARC32) && !defined(CONFIG_SMP)
         cpu_data(0).udelay_val = loops_per_jiffy;
 #endif
-#ifdef CONFIG_SPARC64
-        sstate_running();
-#endif
 }
diff --git a/arch/sparc/include/asm/cpudata_64.h b/arch/sparc/include/asm/cpudata_64.h
index 532975ecfe1..7da7c13d23c 100644
--- a/arch/sparc/include/asm/cpudata_64.h
+++ b/arch/sparc/include/asm/cpudata_64.h
@@ -86,7 +86,6 @@ extern struct trap_per_cpu trap_block[NR_CPUS];
 extern void init_cur_cpu_trap(struct thread_info *);
 extern void setup_tba(void);
 extern int ncpus_probed;
-extern void __init cpu_probe(void);
 extern const struct seq_operations cpuinfo_op;
 
 extern unsigned long real_hard_smp_processor_id(void);
diff --git a/arch/sparc/include/asm/dma-mapping_32.h b/arch/sparc/include/asm/dma-mapping_32.h
index f3a641e6b2c..8a57ea0573e 100644
--- a/arch/sparc/include/asm/dma-mapping_32.h
+++ b/arch/sparc/include/asm/dma-mapping_32.h
@@ -1,11 +1,60 @@
 #ifndef _ASM_SPARC_DMA_MAPPING_H
 #define _ASM_SPARC_DMA_MAPPING_H
 
+#include <linux/types.h>
 
-#ifdef CONFIG_PCI
-#include <asm-generic/dma-mapping.h>
-#else
-#include <asm-generic/dma-mapping-broken.h>
-#endif /* PCI */
+struct device;
+struct scatterlist;
+struct page;
+
+#define DMA_ERROR_CODE  (~(dma_addr_t)0x0)
+
+extern int dma_supported(struct device *dev, u64 mask);
+extern int dma_set_mask(struct device *dev, u64 dma_mask);
+extern void *dma_alloc_coherent(struct device *dev, size_t size,
+                                dma_addr_t *dma_handle, gfp_t flag);
+extern void dma_free_coherent(struct device *dev, size_t size,
+                              void *cpu_addr, dma_addr_t dma_handle);
+extern dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
+                                 size_t size,
+                                 enum dma_data_direction direction);
+extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
+                             size_t size,
+                             enum dma_data_direction direction);
+extern dma_addr_t dma_map_page(struct device *dev, struct page *page,
+                               unsigned long offset, size_t size,
+                               enum dma_data_direction direction);
+extern void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
+                           size_t size, enum dma_data_direction direction);
+extern int dma_map_sg(struct device *dev, struct scatterlist *sg,
+                      int nents, enum dma_data_direction direction);
+extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+                         int nents, enum dma_data_direction direction);
+extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
+                                    size_t size,
+                                    enum dma_data_direction direction);
+extern void dma_sync_single_for_device(struct device *dev,
+                                       dma_addr_t dma_handle,
+                                       size_t size,
+                                       enum dma_data_direction direction);
+extern void dma_sync_single_range_for_cpu(struct device *dev,
+                                          dma_addr_t dma_handle,
+                                          unsigned long offset,
+                                          size_t size,
+                                          enum dma_data_direction direction);
+extern void dma_sync_single_range_for_device(struct device *dev,
+                                             dma_addr_t dma_handle,
+                                             unsigned long offset, size_t size,
+                                             enum dma_data_direction direction);
+extern void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+                                int nelems, enum dma_data_direction direction);
+extern void dma_sync_sg_for_device(struct device *dev,
+                                   struct scatterlist *sg, int nelems,
+                                   enum dma_data_direction direction);
+extern int dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
+extern int dma_get_cache_alignment(void);
+
+#define dma_alloc_noncoherent   dma_alloc_coherent
+#define dma_free_noncoherent    dma_free_coherent
 
 #endif /* _ASM_SPARC_DMA_MAPPING_H */
diff --git a/arch/sparc/include/asm/dma.h b/arch/sparc/include/asm/dma.h
index aa1d90ac04c..b554927bbaf 100644
--- a/arch/sparc/include/asm/dma.h
+++ b/arch/sparc/include/asm/dma.h
@@ -1,8 +1,139 @@
-#ifndef ___ASM_SPARC_DMA_H
-#define ___ASM_SPARC_DMA_H
-#if defined(__sparc__) && defined(__arch64__)
-#include <asm/dma_64.h>
+#ifndef _ASM_SPARC_DMA_H
+#define _ASM_SPARC_DMA_H
+
+/* These are irrelevant for Sparc DMA, but we leave it in so that
+ * things can compile.
+ */
+#define MAX_DMA_CHANNELS 8
+#define DMA_MODE_READ    1
+#define DMA_MODE_WRITE   2
+#define MAX_DMA_ADDRESS  (~0UL)
+
+/* Useful constants */
+#define SIZE_16MB      (16*1024*1024)
+#define SIZE_64K       (64*1024)
+
+/* SBUS DMA controller reg offsets */
+#define DMA_CSR         0x00UL          /* rw  DMA control/status register    0x00   */
+#define DMA_ADDR        0x04UL          /* rw  DMA transfer address register  0x04   */
+#define DMA_COUNT       0x08UL          /* rw  DMA transfer count register    0x08   */
+#define DMA_TEST        0x0cUL          /* rw  DMA test/debug register        0x0c   */
+
+/* Fields in the cond_reg register */
+/* First, the version identification bits */
+#define DMA_DEVICE_ID    0xf0000000        /* Device identification bits */
+#define DMA_VERS0        0x00000000        /* Sunray DMA version */
+#define DMA_ESCV1        0x40000000        /* DMA ESC Version 1 */
+#define DMA_VERS1        0x80000000        /* DMA rev 1 */
+#define DMA_VERS2        0xa0000000        /* DMA rev 2 */
+#define DMA_VERHME       0xb0000000        /* DMA hme gate array */
+#define DMA_VERSPLUS     0x90000000        /* DMA rev 1 PLUS */
+
+#define DMA_HNDL_INTR    0x00000001        /* An IRQ needs to be handled */
+#define DMA_HNDL_ERROR   0x00000002        /* We need to take an error */
+#define DMA_FIFO_ISDRAIN 0x0000000c        /* The DMA FIFO is draining */
+#define DMA_INT_ENAB     0x00000010        /* Turn on interrupts */
+#define DMA_FIFO_INV     0x00000020        /* Invalidate the FIFO */
+#define DMA_ACC_SZ_ERR   0x00000040        /* The access size was bad */
+#define DMA_FIFO_STDRAIN 0x00000040        /* DMA_VERS1 Drain the FIFO */
+#define DMA_RST_SCSI     0x00000080        /* Reset the SCSI controller */
+#define DMA_RST_ENET     DMA_RST_SCSI      /* Reset the ENET controller */
+#define DMA_ST_WRITE     0x00000100        /* write from device to memory */
+#define DMA_ENABLE       0x00000200        /* Fire up DMA, handle requests */
+#define DMA_PEND_READ    0x00000400        /* DMA_VERS1/0/PLUS Pending Read */
+#define DMA_ESC_BURST    0x00000800        /* 1=16byte 0=32byte */
+#define DMA_READ_AHEAD   0x00001800        /* DMA read ahead partial longword */
+#define DMA_DSBL_RD_DRN  0x00001000        /* No EC drain on slave reads */
+#define DMA_BCNT_ENAB    0x00002000        /* If on, use the byte counter */
+#define DMA_TERM_CNTR    0x00004000        /* Terminal counter */
+#define DMA_SCSI_SBUS64  0x00008000        /* HME: Enable 64-bit SBUS mode. */
+#define DMA_CSR_DISAB    0x00010000        /* No FIFO drains during csr */
+#define DMA_SCSI_DISAB   0x00020000        /* No FIFO drains during reg */
+#define DMA_DSBL_WR_INV  0x00020000        /* No EC inval. on slave writes */
+#define DMA_ADD_ENABLE   0x00040000        /* Special ESC DVMA optimization */
+#define DMA_E_BURSTS     0x000c0000        /* ENET: SBUS r/w burst mask */
+#define DMA_E_BURST32    0x00040000        /* ENET: SBUS 32 byte r/w burst */
+#define DMA_E_BURST16    0x00000000        /* ENET: SBUS 16 byte r/w burst */
+#define DMA_BRST_SZ      0x000c0000        /* SCSI: SBUS r/w burst size */
+#define DMA_BRST64       0x000c0000        /* SCSI: 64byte bursts (HME on UltraSparc only) */
+#define DMA_BRST32       0x00040000        /* SCSI: 32byte bursts */
+#define DMA_BRST16       0x00000000        /* SCSI: 16byte bursts */
+#define DMA_BRST0        0x00080000        /* SCSI: no bursts (non-HME gate arrays) */
+#define DMA_ADDR_DISAB   0x00100000        /* No FIFO drains during addr */
+#define DMA_2CLKS        0x00200000        /* Each transfer = 2 clock ticks */
+#define DMA_3CLKS        0x00400000        /* Each transfer = 3 clock ticks */
+#define DMA_EN_ENETAUI   DMA_3CLKS         /* Put lance into AUI-cable mode */
+#define DMA_CNTR_DISAB   0x00800000        /* No IRQ when DMA_TERM_CNTR set */
+#define DMA_AUTO_NADDR   0x01000000        /* Use "auto nxt addr" feature */
+#define DMA_SCSI_ON      0x02000000        /* Enable SCSI dma */
+#define DMA_PARITY_OFF   0x02000000        /* HME: disable parity checking */
+#define DMA_LOADED_ADDR  0x04000000        /* Address has been loaded */
+#define DMA_LOADED_NADDR 0x08000000        /* Next address has been loaded */
+#define DMA_RESET_FAS366 0x08000000        /* HME: Assert RESET to FAS366 */
+
+/* Values describing the burst-size property from the PROM */
+#define DMA_BURST1       0x01
+#define DMA_BURST2       0x02
+#define DMA_BURST4       0x04
+#define DMA_BURST8       0x08
+#define DMA_BURST16      0x10
+#define DMA_BURST32      0x20
+#define DMA_BURST64      0x40
+#define DMA_BURSTBITS    0x7f
+
+/* From PCI */
+
+#ifdef CONFIG_PCI
+extern int isa_dma_bridge_buggy;
 #else
-#include <asm/dma_32.h>
+#define isa_dma_bridge_buggy    (0)
 #endif
+
+#ifdef CONFIG_SPARC32
+
+/* Routines for data transfer buffers. */
+BTFIXUPDEF_CALL(char *, mmu_lockarea, char *, unsigned long)
+BTFIXUPDEF_CALL(void,   mmu_unlockarea, char *, unsigned long)
+
+#define mmu_lockarea(vaddr,len) BTFIXUP_CALL(mmu_lockarea)(vaddr,len)
+#define mmu_unlockarea(vaddr,len) BTFIXUP_CALL(mmu_unlockarea)(vaddr,len)
+
+struct page;
+struct device;
+struct scatterlist;
+
+/* These are implementations for sbus_map_sg/sbus_unmap_sg... collapse later */
+BTFIXUPDEF_CALL(__u32, mmu_get_scsi_one, struct device *, char *, unsigned long)
+BTFIXUPDEF_CALL(void,  mmu_get_scsi_sgl, struct device *, struct scatterlist *, int)
+BTFIXUPDEF_CALL(void,  mmu_release_scsi_one, struct device *, __u32, unsigned long)
+BTFIXUPDEF_CALL(void,  mmu_release_scsi_sgl, struct device *, struct scatterlist *, int)
+
+#define mmu_get_scsi_one(dev,vaddr,len) BTFIXUP_CALL(mmu_get_scsi_one)(dev,vaddr,len)
+#define mmu_get_scsi_sgl(dev,sg,sz) BTFIXUP_CALL(mmu_get_scsi_sgl)(dev,sg,sz)
+#define mmu_release_scsi_one(dev,vaddr,len) BTFIXUP_CALL(mmu_release_scsi_one)(dev,vaddr,len)
+#define mmu_release_scsi_sgl(dev,sg,sz) BTFIXUP_CALL(mmu_release_scsi_sgl)(dev,sg,sz)
+
+/*
+ * mmu_map/unmap are provided by iommu/iounit; Invalid to call on IIep.
+ *
+ * The mmu_map_dma_area establishes two mappings in one go.
+ * These mappings point to pages normally mapped at 'va' (linear address).
+ * First mapping is for CPU visible address at 'a', uncached.
+ * This is an alias, but it works because it is an uncached mapping.
+ * Second mapping is for device visible address, or "bus" address.
+ * The bus address is returned at '*pba'.
+ *
+ * These functions seem distinct, but are hard to split. On sun4c,
+ * at least for now, 'a' is equal to bus address, and retured in *pba.
+ * On sun4m, page attributes depend on the CPU type, so we have to
+ * know if we are mapping RAM or I/O, so it has to be an additional argument
+ * to a separate mapping function for CPU visible mappings.
+ */
+BTFIXUPDEF_CALL(int, mmu_map_dma_area, struct device *, dma_addr_t *, unsigned long, unsigned long, int len)
+BTFIXUPDEF_CALL(void, mmu_unmap_dma_area, struct device *, unsigned long busa, int len)
+
+#define mmu_map_dma_area(dev,pba,va,a,len) BTFIXUP_CALL(mmu_map_dma_area)(dev,pba,va,a,len)
+#define mmu_unmap_dma_area(dev,ba,len) BTFIXUP_CALL(mmu_unmap_dma_area)(dev,ba,len)
 #endif
+
+#endif /* !(_ASM_SPARC_DMA_H) */
diff --git a/arch/sparc/include/asm/dma_32.h b/arch/sparc/include/asm/dma_32.h
deleted file mode 100644
index cf7189c0079..00000000000
--- a/arch/sparc/include/asm/dma_32.h
+++ /dev/null
@@ -1,288 +0,0 @@
-/* include/asm/dma.h
- *
- * Copyright 1995 (C) David S. Miller (davem@davemloft.net)
- */
-
-#ifndef _ASM_SPARC_DMA_H
-#define _ASM_SPARC_DMA_H
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-
-#include <asm/vac-ops.h>  /* for invalidate's, etc. */
-#include <asm/sbus.h>
-#include <asm/delay.h>
-#include <asm/oplib.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <linux/spinlock.h>
-
-struct page;
-extern spinlock_t  dma_spin_lock;
-
-static inline unsigned long claim_dma_lock(void)
-{
-        unsigned long flags;
-        spin_lock_irqsave(&dma_spin_lock, flags);
-        return flags;
-}
-
-static inline void release_dma_lock(unsigned long flags)
-{
-        spin_unlock_irqrestore(&dma_spin_lock, flags);
-}
-
-/* These are irrelevant for Sparc DMA, but we leave it in so that
- * things can compile.
- */
-#define MAX_DMA_CHANNELS 8
-#define MAX_DMA_ADDRESS  (~0UL)
-#define DMA_MODE_READ    1
-#define DMA_MODE_WRITE   2
-
-/* Useful constants */
-#define SIZE_16MB      (16*1024*1024)
-#define SIZE_64K       (64*1024)
-
-/* SBUS DMA controller reg offsets */
-#define DMA_CSR         0x00UL          /* rw  DMA control/status register    0x00   */
-#define DMA_ADDR        0x04UL          /* rw  DMA transfer address register  0x04   */
-#define DMA_COUNT       0x08UL          /* rw  DMA transfer count register    0x08   */
-#define DMA_TEST        0x0cUL          /* rw  DMA test/debug register        0x0c   */
-
-/* DVMA chip revisions */
-enum dvma_rev {
-        dvmarev0,
-        dvmaesc1,
-        dvmarev1,
-        dvmarev2,
-        dvmarev3,
-        dvmarevplus,
-        dvmahme
-};
-
-#define DMA_HASCOUNT(rev)  ((rev)==dvmaesc1)
-
-/* Linux DMA information structure, filled during probe. */
-struct sbus_dma {
-        struct sbus_dma *next;
-        struct sbus_dev *sdev;
-        void __iomem *regs;
-
-        /* Status, misc info */
-        int node;                /* Prom node for this DMA device */
-        int running;             /* Are we doing DMA now? */
-        int allocated;           /* Are we "owned" by anyone yet? */
-
-        /* Transfer information. */
-        unsigned long addr;      /* Start address of current transfer */
-        int nbytes;              /* Size of current transfer */
-        int realbytes;           /* For splitting up large transfers, etc. */
-
-        /* DMA revision */
-        enum dvma_rev revision;
-};
-
-extern struct sbus_dma *dma_chain;
-
-/* Broken hardware... */
-#ifdef CONFIG_SUN4
-/* Have to sort this out. Does rev0 work fine on sun4[cmd] without isbroken?
- * Or is rev0 present only on sun4 boxes? -jj */
-#define DMA_ISBROKEN(dma)    ((dma)->revision == dvmarev0 || (dma)->revision == dvmarev1)
-#else
-#define DMA_ISBROKEN(dma)    ((dma)->revision == dvmarev1)
-#endif
-#define DMA_ISESC1(dma)      ((dma)->revision == dvmaesc1)
-
-/* Main routines in dma.c */
-extern void dvma_init(struct sbus_bus *);
-
-/* Fields in the cond_reg register */
-/* First, the version identification bits */
-#define DMA_DEVICE_ID    0xf0000000        /* Device identification bits */
-#define DMA_VERS0        0x00000000        /* Sunray DMA version */
-#define DMA_ESCV1        0x40000000        /* DMA ESC Version 1 */
-#define DMA_VERS1        0x80000000        /* DMA rev 1 */
-#define DMA_VERS2        0xa0000000        /* DMA rev 2 */
-#define DMA_VERHME       0xb0000000        /* DMA hme gate array */
-#define DMA_VERSPLUS     0x90000000        /* DMA rev 1 PLUS */
-
-#define DMA_HNDL_INTR    0x00000001        /* An IRQ needs to be handled */
-#define DMA_HNDL_ERROR   0x00000002        /* We need to take an error */
-#define DMA_FIFO_ISDRAIN 0x0000000c        /* The DMA FIFO is draining */
-#define DMA_INT_ENAB     0x00000010        /* Turn on interrupts */
-#define DMA_FIFO_INV     0x00000020        /* Invalidate the FIFO */
-#define DMA_ACC_SZ_ERR   0x00000040        /* The access size was bad */
-#define DMA_FIFO_STDRAIN 0x00000040        /* DMA_VERS1 Drain the FIFO */
-#define DMA_RST_SCSI     0x00000080        /* Reset the SCSI controller */
-#define DMA_RST_ENET     DMA_RST_SCSI      /* Reset the ENET controller */
-#define DMA_RST_BPP      DMA_RST_SCSI      /* Reset the BPP controller */
-#define DMA_ST_WRITE     0x00000100        /* write from device to memory */
-#define DMA_ENABLE       0x00000200        /* Fire up DMA, handle requests */
-#define DMA_PEND_READ    0x00000400        /* DMA_VERS1/0/PLUS Pending Read */
-#define DMA_ESC_BURST    0x00000800        /* 1=16byte 0=32byte */
-#define DMA_READ_AHEAD   0x00001800        /* DMA read ahead partial longword */
-#define DMA_DSBL_RD_DRN  0x00001000        /* No EC drain on slave reads */
-#define DMA_BCNT_ENAB    0x00002000        /* If on, use the byte counter */
-#define DMA_TERM_CNTR    0x00004000        /* Terminal counter */
-#define DMA_SCSI_SBUS64  0x00008000        /* HME: Enable 64-bit SBUS mode. */
-#define DMA_CSR_DISAB    0x00010000        /* No FIFO drains during csr */
-#define DMA_SCSI_DISAB   0x00020000        /* No FIFO drains during reg */
-#define DMA_DSBL_WR_INV  0x00020000        /* No EC inval. on slave writes */
-#define DMA_ADD_ENABLE   0x00040000        /* Special ESC DVMA optimization */
-#define DMA_E_BURSTS     0x000c0000        /* ENET: SBUS r/w burst mask */
-#define DMA_E_BURST32    0x00040000        /* ENET: SBUS 32 byte r/w burst */
-#define DMA_E_BURST16    0x00000000        /* ENET: SBUS 16 byte r/w burst */
-#define DMA_BRST_SZ      0x000c0000        /* SCSI: SBUS r/w burst size */
-#define DMA_BRST64       0x00080000        /* SCSI: 64byte bursts (HME on UltraSparc only) */
-#define DMA_BRST32       0x00040000        /* SCSI/BPP: 32byte bursts */
-#define DMA_BRST16       0x00000000        /* SCSI/BPP: 16byte bursts */
-#define DMA_BRST0        0x00080000        /* SCSI: no bursts (non-HME gate arrays) */
-#define DMA_ADDR_DISAB   0x00100000        /* No FIFO drains during addr */
-#define DMA_2CLKS        0x00200000        /* Each transfer = 2 clock ticks */
-#define DMA_3CLKS        0x00400000        /* Each transfer = 3 clock ticks */
-#define DMA_EN_ENETAUI   DMA_3CLKS         /* Put lance into AUI-cable mode */
-#define DMA_CNTR_DISAB   0x00800000        /* No IRQ when DMA_TERM_CNTR set */
-#define DMA_AUTO_NADDR   0x01000000        /* Use "auto nxt addr" feature */
-#define DMA_SCSI_ON      0x02000000        /* Enable SCSI dma */
-#define DMA_BPP_ON       DMA_SCSI_ON       /* Enable BPP dma */
-#define DMA_PARITY_OFF   0x02000000        /* HME: disable parity checking */
-#define DMA_LOADED_ADDR  0x04000000        /* Address has been loaded */
-#define DMA_LOADED_NADDR 0x08000000        /* Next address has been loaded */
-#define DMA_RESET_FAS366 0x08000000        /* HME: Assert RESET to FAS366 */
-
-/* Values describing the burst-size property from the PROM */
-#define DMA_BURST1       0x01
-#define DMA_BURST2       0x02
-#define DMA_BURST4       0x04
-#define DMA_BURST8       0x08
-#define DMA_BURST16      0x10
-#define DMA_BURST32      0x20
-#define DMA_BURST64      0x40
-#define DMA_BURSTBITS    0x7f
-
-/* Determine highest possible final transfer address given a base */
-#define DMA_MAXEND(addr) (0x01000000UL-(((unsigned long)(addr))&0x00ffffffUL))
-
-/* Yes, I hack a lot of elisp in my spare time... */
-#define DMA_ERROR_P(regs)  ((((regs)->cond_reg) & DMA_HNDL_ERROR))
-#define DMA_IRQ_P(regs)    ((((regs)->cond_reg) & (DMA_HNDL_INTR | DMA_HNDL_ERROR)))
-#define DMA_WRITE_P(regs)  ((((regs)->cond_reg) & DMA_ST_WRITE))
-#define DMA_OFF(regs)      ((((regs)->cond_reg) &= (~DMA_ENABLE)))
-#define DMA_INTSOFF(regs)  ((((regs)->cond_reg) &= (~DMA_INT_ENAB)))
-#define DMA_INTSON(regs)   ((((regs)->cond_reg) |= (DMA_INT_ENAB)))
-#define DMA_PUNTFIFO(regs) ((((regs)->cond_reg) |= DMA_FIFO_INV))
-#define DMA_SETSTART(regs, addr)  ((((regs)->st_addr) = (char *) addr))
-#define DMA_BEGINDMA_W(regs) \
-        ((((regs)->cond_reg |= (DMA_ST_WRITE|DMA_ENABLE|DMA_INT_ENAB))))
-#define DMA_BEGINDMA_R(regs) \
-        ((((regs)->cond_reg |= ((DMA_ENABLE|DMA_INT_ENAB)&(~DMA_ST_WRITE)))))
-
-/* For certain DMA chips, we need to disable ints upon irq entry
- * and turn them back on when we are done.  So in any ESP interrupt
- * handler you *must* call DMA_IRQ_ENTRY upon entry and DMA_IRQ_EXIT
- * when leaving the handler.  You have been warned...
- */
-#define DMA_IRQ_ENTRY(dma, dregs) do { \
-        if(DMA_ISBROKEN(dma)) DMA_INTSOFF(dregs); \
-   } while (0)
-
-#define DMA_IRQ_EXIT(dma, dregs) do { \
-        if(DMA_ISBROKEN(dma)) DMA_INTSON(dregs); \
-   } while(0)
-
-#if 0   /* P3 this stuff is inline in ledma.c:init_restart_ledma() */
-/* Pause until counter runs out or BIT isn't set in the DMA condition
- * register.
- */
-static inline void sparc_dma_pause(struct sparc_dma_registers *regs,
-                                       unsigned long bit)
-{
-        int ctr = 50000;   /* Let's find some bugs ;) */
-
-        /* Busy wait until the bit is not set any more */
-        while((regs->cond_reg&bit) && (ctr>0)) {
-                ctr--;
-                __delay(5);
-        }
-
-        /* Check for bogus outcome. */
-        if(!ctr)
-                panic("DMA timeout");
-}
-
-/* Reset the friggin' thing... */
-#define DMA_RESET(dma) do { \
-        struct sparc_dma_registers *regs = dma->regs;                      \
-        /* Let the current FIFO drain itself */                            \
-        sparc_dma_pause(regs, (DMA_FIFO_ISDRAIN));                         \
-        /* Reset the logic */                                              \
-        regs->cond_reg |= (DMA_RST_SCSI);     /* assert */                 \
-        __delay(400);                         /* let the bits set ;) */    \
-        regs->cond_reg &= ~(DMA_RST_SCSI);    /* de-assert */              \
-        sparc_dma_enable_interrupts(regs);    /* Re-enable interrupts */   \
-        /* Enable FAST transfers if available */                           \
-        if(dma->revision>dvmarev1) regs->cond_reg |= DMA_3CLKS;            \
-        dma->running = 0;                                                  \
-} while(0)
-#endif
-
-#define for_each_dvma(dma) \
-        for((dma) = dma_chain; (dma); (dma) = (dma)->next)
-
-extern int get_dma_list(char *);
-extern int request_dma(unsigned int, __const__ char *);
-extern void free_dma(unsigned int);
-
-/* From PCI */
-
-#ifdef CONFIG_PCI
-extern int isa_dma_bridge_buggy;
-#else
-#define isa_dma_bridge_buggy    (0)
-#endif
-
-/* Routines for data transfer buffers. */
-BTFIXUPDEF_CALL(char *, mmu_lockarea, char *, unsigned long)
-BTFIXUPDEF_CALL(void,   mmu_unlockarea, char *, unsigned long)
-
-#define mmu_lockarea(vaddr,len) BTFIXUP_CALL(mmu_lockarea)(vaddr,len)
-#define mmu_unlockarea(vaddr,len) BTFIXUP_CALL(mmu_unlockarea)(vaddr,len)
-
-/* These are implementations for sbus_map_sg/sbus_unmap_sg... collapse later */
-BTFIXUPDEF_CALL(__u32, mmu_get_scsi_one, char *, unsigned long, struct sbus_bus *sbus)
-BTFIXUPDEF_CALL(void,  mmu_get_scsi_sgl, struct scatterlist *, int, struct sbus_bus *sbus)
-BTFIXUPDEF_CALL(void,  mmu_release_scsi_one, __u32, unsigned long, struct sbus_bus *sbus)
-BTFIXUPDEF_CALL(void,  mmu_release_scsi_sgl, struct scatterlist *, int, struct sbus_bus *sbus)
-
-#define mmu_get_scsi_one(vaddr,len,sbus) BTFIXUP_CALL(mmu_get_scsi_one)(vaddr,len,sbus)
-#define mmu_get_scsi_sgl(sg,sz,sbus) BTFIXUP_CALL(mmu_get_scsi_sgl)(sg,sz,sbus)
-#define mmu_release_scsi_one(vaddr,len,sbus) BTFIXUP_CALL(mmu_release_scsi_one)(vaddr,len,sbus)
-#define mmu_release_scsi_sgl(sg,sz,sbus) BTFIXUP_CALL(mmu_release_scsi_sgl)(sg,sz,sbus)
-
-/*
- * mmu_map/unmap are provided by iommu/iounit; Invalid to call on IIep.
- *
- * The mmu_map_dma_area establishes two mappings in one go.
- * These mappings point to pages normally mapped at 'va' (linear address).
- * First mapping is for CPU visible address at 'a', uncached.
- * This is an alias, but it works because it is an uncached mapping.
- * Second mapping is for device visible address, or "bus" address.
- * The bus address is returned at '*pba'.
- *
- * These functions seem distinct, but are hard to split. On sun4c,
- * at least for now, 'a' is equal to bus address, and retured in *pba.
- * On sun4m, page attributes depend on the CPU type, so we have to
- * know if we are mapping RAM or I/O, so it has to be an additional argument
- * to a separate mapping function for CPU visible mappings.
- */
-BTFIXUPDEF_CALL(int,  mmu_map_dma_area, dma_addr_t *, unsigned long, unsigned long, int len)
-BTFIXUPDEF_CALL(struct page *, mmu_translate_dvma, unsigned long busa)
-BTFIXUPDEF_CALL(void,  mmu_unmap_dma_area, unsigned long busa, int len)
-
-#define mmu_map_dma_area(pba,va,a,len) BTFIXUP_CALL(mmu_map_dma_area)(pba,va,a,len)
-#define mmu_unmap_dma_area(ba,len) BTFIXUP_CALL(mmu_unmap_dma_area)(ba,len)
-#define mmu_translate_dvma(ba)     BTFIXUP_CALL(mmu_translate_dvma)(ba)
-
-#endif /* !(_ASM_SPARC_DMA_H) */
diff --git a/arch/sparc/include/asm/dma_64.h b/arch/sparc/include/asm/dma_64.h
deleted file mode 100644
index 46a8aecffc0..00000000000
--- a/arch/sparc/include/asm/dma_64.h
+++ /dev/null
@@ -1,205 +0,0 @@
-/*
- * include/asm/dma.h
- *
- * Copyright 1996 (C) David S. Miller (davem@caip.rutgers.edu)
- */
-
-#ifndef _ASM_SPARC64_DMA_H
-#define _ASM_SPARC64_DMA_H
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/spinlock.h>
-
-#include <asm/sbus.h>
-#include <asm/delay.h>
-#include <asm/oplib.h>
-
-/* These are irrelevant for Sparc DMA, but we leave it in so that
- * things can compile.
- */
-#define MAX_DMA_CHANNELS 8
-#define DMA_MODE_READ    1
-#define DMA_MODE_WRITE   2
-#define MAX_DMA_ADDRESS  (~0UL)
-
-/* Useful constants */
-#define SIZE_16MB      (16*1024*1024)
-#define SIZE_64K       (64*1024)
-
-/* SBUS DMA controller reg offsets */
-#define DMA_CSR         0x00UL          /* rw  DMA control/status register    0x00   */
-#define DMA_ADDR        0x04UL          /* rw  DMA transfer address register  0x04   */
-#define DMA_COUNT       0x08UL          /* rw  DMA transfer count register    0x08   */
-#define DMA_TEST        0x0cUL          /* rw  DMA test/debug register        0x0c   */
-
-/* DVMA chip revisions */
-enum dvma_rev {
-        dvmarev0,
-        dvmaesc1,
-        dvmarev1,
-        dvmarev2,
-        dvmarev3,
-        dvmarevplus,
-        dvmahme
-};
-
-#define DMA_HASCOUNT(rev)  ((rev)==dvmaesc1)
-
-/* Linux DMA information structure, filled during probe. */
-struct sbus_dma {
-        struct sbus_dma *next;
-        struct sbus_dev *sdev;
-        void __iomem *regs;
-
-        /* Status, misc info */
-        int node;                /* Prom node for this DMA device */
-        int running;             /* Are we doing DMA now? */
-        int allocated;           /* Are we "owned" by anyone yet? */
-
-        /* Transfer information. */
-        u32 addr;                /* Start address of current transfer */
-        int nbytes;              /* Size of current transfer */
-        int realbytes;           /* For splitting up large transfers, etc. */
-
-        /* DMA revision */
-        enum dvma_rev revision;
-};
-
-extern struct sbus_dma *dma_chain;
-
-/* Broken hardware... */
-#define DMA_ISBROKEN(dma)    ((dma)->revision == dvmarev1)
-#define DMA_ISESC1(dma)      ((dma)->revision == dvmaesc1)
-
-/* Main routines in dma.c */
-extern void dvma_init(struct sbus_bus *);
-
-/* Fields in the cond_reg register */
-/* First, the version identification bits */
-#define DMA_DEVICE_ID    0xf0000000        /* Device identification bits */
-#define DMA_VERS0        0x00000000        /* Sunray DMA version */
-#define DMA_ESCV1        0x40000000        /* DMA ESC Version 1 */
-#define DMA_VERS1        0x80000000        /* DMA rev 1 */
-#define DMA_VERS2        0xa0000000        /* DMA rev 2 */
-#define DMA_VERHME       0xb0000000        /* DMA hme gate array */
-#define DMA_VERSPLUS     0x90000000        /* DMA rev 1 PLUS */
-
-#define DMA_HNDL_INTR    0x00000001        /* An IRQ needs to be handled */
-#define DMA_HNDL_ERROR   0x00000002        /* We need to take an error */
-#define DMA_FIFO_ISDRAIN 0x0000000c        /* The DMA FIFO is draining */
-#define DMA_INT_ENAB     0x00000010        /* Turn on interrupts */
-#define DMA_FIFO_INV     0x00000020        /* Invalidate the FIFO */
-#define DMA_ACC_SZ_ERR   0x00000040        /* The access size was bad */
-#define DMA_FIFO_STDRAIN 0x00000040        /* DMA_VERS1 Drain the FIFO */
-#define DMA_RST_SCSI     0x00000080        /* Reset the SCSI controller */
-#define DMA_RST_ENET     DMA_RST_SCSI      /* Reset the ENET controller */
-#define DMA_ST_WRITE     0x00000100        /* write from device to memory */
-#define DMA_ENABLE       0x00000200        /* Fire up DMA, handle requests */
-#define DMA_PEND_READ    0x00000400        /* DMA_VERS1/0/PLUS Pending Read */
-#define DMA_ESC_BURST    0x00000800        /* 1=16byte 0=32byte */
-#define DMA_READ_AHEAD   0x00001800        /* DMA read ahead partial longword */
-#define DMA_DSBL_RD_DRN  0x00001000        /* No EC drain on slave reads */
-#define DMA_BCNT_ENAB    0x00002000        /* If on, use the byte counter */
-#define DMA_TERM_CNTR    0x00004000        /* Terminal counter */
-#define DMA_SCSI_SBUS64  0x00008000        /* HME: Enable 64-bit SBUS mode. */
-#define DMA_CSR_DISAB    0x00010000        /* No FIFO drains during csr */
-#define DMA_SCSI_DISAB   0x00020000        /* No FIFO drains during reg */
-#define DMA_DSBL_WR_INV  0x00020000        /* No EC inval. on slave writes */
-#define DMA_ADD_ENABLE   0x00040000        /* Special ESC DVMA optimization */
-#define DMA_E_BURSTS     0x000c0000        /* ENET: SBUS r/w burst mask */
-#define DMA_E_BURST32    0x00040000        /* ENET: SBUS 32 byte r/w burst */
-#define DMA_E_BURST16    0x00000000        /* ENET: SBUS 16 byte r/w burst */
-#define DMA_BRST_SZ      0x000c0000        /* SCSI: SBUS r/w burst size */
-#define DMA_BRST64       0x000c0000        /* SCSI: 64byte bursts (HME on UltraSparc only) */
-#define DMA_BRST32       0x00040000        /* SCSI: 32byte bursts */
-#define DMA_BRST16       0x00000000        /* SCSI: 16byte bursts */
-#define DMA_BRST0        0x00080000        /* SCSI: no bursts (non-HME gate arrays) */
-#define DMA_ADDR_DISAB   0x00100000        /* No FIFO drains during addr */
-#define DMA_2CLKS        0x00200000        /* Each transfer = 2 clock ticks */
-#define DMA_3CLKS        0x00400000        /* Each transfer = 3 clock ticks */
-#define DMA_EN_ENETAUI   DMA_3CLKS         /* Put lance into AUI-cable mode */
-#define DMA_CNTR_DISAB   0x00800000        /* No IRQ when DMA_TERM_CNTR set */
-#define DMA_AUTO_NADDR   0x01000000        /* Use "auto nxt addr" feature */
-#define DMA_SCSI_ON      0x02000000        /* Enable SCSI dma */
-#define DMA_PARITY_OFF   0x02000000        /* HME: disable parity checking */
-#define DMA_LOADED_ADDR  0x04000000        /* Address has been loaded */
-#define DMA_LOADED_NADDR 0x08000000        /* Next address has been loaded */
-#define DMA_RESET_FAS366 0x08000000        /* HME: Assert RESET to FAS366 */
-
-/* Values describing the burst-size property from the PROM */
-#define DMA_BURST1       0x01
-#define DMA_BURST2       0x02
-#define DMA_BURST4       0x04
-#define DMA_BURST8       0x08
-#define DMA_BURST16      0x10
-#define DMA_BURST32      0x20
-#define DMA_BURST64      0x40
-#define DMA_BURSTBITS    0x7f
-
-/* Determine highest possible final transfer address given a base */
-#define DMA_MAXEND(addr) (0x01000000UL-(((unsigned long)(addr))&0x00ffffffUL))
-
-/* Yes, I hack a lot of elisp in my spare time... */
-#define DMA_ERROR_P(regs)  ((sbus_readl((regs) + DMA_CSR) & DMA_HNDL_ERROR))
-#define DMA_IRQ_P(regs)    ((sbus_readl((regs) + DMA_CSR)) & (DMA_HNDL_INTR | DMA_HNDL_ERROR))
-#define DMA_WRITE_P(regs)  ((sbus_readl((regs) + DMA_CSR) & DMA_ST_WRITE))
-#define DMA_OFF(__regs)         \
-do {    u32 tmp = sbus_readl((__regs) + DMA_CSR); \
-        tmp &= ~DMA_ENABLE; \
-        sbus_writel(tmp, (__regs) + DMA_CSR); \
-} while(0)
-#define DMA_INTSOFF(__regs)     \
-do {    u32 tmp = sbus_readl((__regs) + DMA_CSR); \
-        tmp &= ~DMA_INT_ENAB; \
-        sbus_writel(tmp, (__regs) + DMA_CSR); \
-} while(0)
-#define DMA_INTSON(__regs)      \
-do {    u32 tmp = sbus_readl((__regs) + DMA_CSR); \
-        tmp |= DMA_INT_ENAB; \
-        sbus_writel(tmp, (__regs) + DMA_CSR); \
-} while(0)
-#define DMA_PUNTFIFO(__regs)    \
-do {    u32 tmp = sbus_readl((__regs) + DMA_CSR); \
-        tmp |= DMA_FIFO_INV; \
-        sbus_writel(tmp, (__regs) + DMA_CSR); \
-} while(0)
-#define DMA_SETSTART(__regs, __addr)    \
-        sbus_writel((u32)(__addr), (__regs) + DMA_ADDR);
-#define DMA_BEGINDMA_W(__regs)  \
-do {    u32 tmp = sbus_readl((__regs) + DMA_CSR); \
-        tmp |= (DMA_ST_WRITE|DMA_ENABLE|DMA_INT_ENAB); \
-        sbus_writel(tmp, (__regs) + DMA_CSR); \
-} while(0)
-#define DMA_BEGINDMA_R(__regs)  \
-do {    u32 tmp = sbus_readl((__regs) + DMA_CSR); \
-        tmp |= (DMA_ENABLE|DMA_INT_ENAB); \
-        tmp &= ~DMA_ST_WRITE; \
-        sbus_writel(tmp, (__regs) + DMA_CSR); \
-} while(0)
-
-/* For certain DMA chips, we need to disable ints upon irq entry
- * and turn them back on when we are done.  So in any ESP interrupt
- * handler you *must* call DMA_IRQ_ENTRY upon entry and DMA_IRQ_EXIT
- * when leaving the handler.  You have been warned...
- */
-#define DMA_IRQ_ENTRY(dma, dregs) do { \
-        if(DMA_ISBROKEN(dma)) DMA_INTSOFF(dregs); \
-   } while (0)
-
-#define DMA_IRQ_EXIT(dma, dregs) do { \
-        if(DMA_ISBROKEN(dma)) DMA_INTSON(dregs); \
-   } while(0)
-
-#define for_each_dvma(dma) \
-        for((dma) = dma_chain; (dma); (dma) = (dma)->next)
-
-/* From PCI */
-
-#ifdef CONFIG_PCI
-extern int isa_dma_bridge_buggy;
-#else
-#define isa_dma_bridge_buggy    (0)
-#endif
-
-#endif /* !(_ASM_SPARC64_DMA_H) */
diff --git a/arch/sparc/include/asm/ebus.h b/arch/sparc/include/asm/ebus.h
deleted file mode 100644
index 83a6d16c22e..00000000000
--- a/arch/sparc/include/asm/ebus.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef ___ASM_SPARC_EBUS_H
-#define ___ASM_SPARC_EBUS_H
-#if defined(__sparc__) && defined(__arch64__)
-#include <asm/ebus_64.h>
-#else
-#include <asm/ebus_32.h>
-#endif
-#endif
diff --git a/arch/sparc/include/asm/ebus_32.h b/arch/sparc/include/asm/ebus_32.h
deleted file mode 100644
index f91f0b267ce..00000000000
--- a/arch/sparc/include/asm/ebus_32.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * ebus.h: PCI to Ebus pseudo driver software state.
- *
- * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
- *
- * Adopted for sparc by V. Roganov and G. Raiko.
- */
-
-#ifndef __SPARC_EBUS_H
-#define __SPARC_EBUS_H
-
-#ifndef _LINUX_IOPORT_H
-#include <linux/ioport.h>
-#endif
-#include <linux/of_device.h>
-#include <asm/oplib.h>
-#include <asm/prom.h>
-
-struct linux_ebus_child {
-        struct linux_ebus_child         *next;
-        struct linux_ebus_device        *parent;
-        struct linux_ebus               *bus;
-        struct device_node              *prom_node;
-        struct resource                  resource[PROMREG_MAX];
-        int                              num_addrs;
-        unsigned int                     irqs[PROMINTR_MAX];
-        int                              num_irqs;
-};
-
-struct linux_ebus_device {
-        struct of_device                ofdev;
-        struct linux_ebus_device        *next;
-        struct linux_ebus_child         *children;
-        struct linux_ebus               *bus;
-        struct device_node              *prom_node;
-        struct resource                  resource[PROMREG_MAX];
-        int                              num_addrs;
-        unsigned int                     irqs[PROMINTR_MAX];
-        int                              num_irqs;
-};
-#define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev)
-
-struct linux_ebus {
-        struct of_device                ofdev;
-        struct linux_ebus               *next;
-        struct linux_ebus_device        *devices;
-        struct linux_pbm_info           *parent;
-        struct pci_dev                  *self;
-        struct device_node              *prom_node;
-};
-#define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev)
-
-struct linux_ebus_dma {
-        unsigned int dcsr;
-        unsigned int dacr;
-        unsigned int dbcr;
-};
-
-#define EBUS_DCSR_INT_PEND      0x00000001
-#define EBUS_DCSR_ERR_PEND      0x00000002
-#define EBUS_DCSR_DRAIN         0x00000004
-#define EBUS_DCSR_INT_EN        0x00000010
-#define EBUS_DCSR_RESET         0x00000080
-#define EBUS_DCSR_WRITE         0x00000100
-#define EBUS_DCSR_EN_DMA        0x00000200
-#define EBUS_DCSR_CYC_PEND      0x00000400
-#define EBUS_DCSR_DIAG_RD_DONE  0x00000800
-#define EBUS_DCSR_DIAG_WR_DONE  0x00001000
-#define EBUS_DCSR_EN_CNT        0x00002000
-#define EBUS_DCSR_TC            0x00004000
-#define EBUS_DCSR_DIS_CSR_DRN   0x00010000
-#define EBUS_DCSR_BURST_SZ_MASK 0x000c0000
-#define EBUS_DCSR_BURST_SZ_1    0x00080000
-#define EBUS_DCSR_BURST_SZ_4    0x00000000
-#define EBUS_DCSR_BURST_SZ_8    0x00040000
-#define EBUS_DCSR_BURST_SZ_16   0x000c0000
-#define EBUS_DCSR_DIAG_EN       0x00100000
-#define EBUS_DCSR_DIS_ERR_PEND  0x00400000
-#define EBUS_DCSR_TCI_DIS       0x00800000
-#define EBUS_DCSR_EN_NEXT       0x01000000
-#define EBUS_DCSR_DMA_ON        0x02000000
-#define EBUS_DCSR_A_LOADED      0x04000000
-#define EBUS_DCSR_NA_LOADED     0x08000000
-#define EBUS_DCSR_DEV_ID_MASK   0xf0000000
-
-extern struct linux_ebus                *ebus_chain;
-
-extern void ebus_init(void);
-
-#define for_each_ebus(bus)                                              \
-        for((bus) = ebus_chain; (bus); (bus) = (bus)->next)
-
-#define for_each_ebusdev(dev, bus)                                      \
-        for((dev) = (bus)->devices; (dev); (dev) = (dev)->next)
-
-#define for_each_edevchild(dev, child)                                  \
-        for((child) = (dev)->children; (child); (child) = (child)->next)
-
-#endif /* !(__SPARC_EBUS_H) */
diff --git a/arch/sparc/include/asm/ebus_64.h b/arch/sparc/include/asm/ebus_64.h
deleted file mode 100644
index 14c6a111f60..00000000000
--- a/arch/sparc/include/asm/ebus_64.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * ebus.h: PCI to Ebus pseudo driver software state.
- *
- * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
- * Copyright (C) 1999 David S. Miller (davem@redhat.com)
- */
-
-#ifndef __SPARC64_EBUS_H
-#define __SPARC64_EBUS_H
-
-#include <linux/of_device.h>
-
-#include <asm/oplib.h>
-#include <asm/prom.h>
-
-struct linux_ebus_child {
-        struct linux_ebus_child         *next;
-        struct linux_ebus_device        *parent;
-        struct linux_ebus               *bus;
-        struct device_node              *prom_node;
-        struct resource                  resource[PROMREG_MAX];
-        int                              num_addrs;
-        unsigned int                     irqs[PROMINTR_MAX];
-        int                              num_irqs;
-};
-
-struct linux_ebus_device {
-        struct of_device                ofdev;
-        struct linux_ebus_device        *next;
-        struct linux_ebus_child         *children;
-        struct linux_ebus               *bus;
-        struct device_node              *prom_node;
-        struct resource                  resource[PROMREG_MAX];
-        int                              num_addrs;
-        unsigned int                     irqs[PROMINTR_MAX];
-        int                              num_irqs;
-};
-#define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev)
-
-struct linux_ebus {
-        struct of_device                ofdev;
-        struct linux_ebus               *next;
-        struct linux_ebus_device        *devices;
-        struct pci_dev                  *self;
-        int                              index;
-        int                              is_rio;
-        struct device_node              *prom_node;
-};
-#define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev)
-
-struct ebus_dma_info {
-        spinlock_t      lock;
-        void __iomem    *regs;
-
-        unsigned int    flags;
-#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER         0x00000001
-#define EBUS_DMA_FLAG_TCI_DISABLE               0x00000002
-
-        /* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is
-         * set.
-         */
-        void (*callback)(struct ebus_dma_info *p, int event, void *cookie);
-        void *client_cookie;
-        unsigned int    irq;
-#define EBUS_DMA_EVENT_ERROR    1
-#define EBUS_DMA_EVENT_DMA      2
-#define EBUS_DMA_EVENT_DEVICE   4
-
-        unsigned char   name[64];
-};
-
-extern int ebus_dma_register(struct ebus_dma_info *p);
-extern int ebus_dma_irq_enable(struct ebus_dma_info *p, int on);
-extern void ebus_dma_unregister(struct ebus_dma_info *p);
-extern int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr,
-                            size_t len);
-extern void ebus_dma_prepare(struct ebus_dma_info *p, int write);
-extern unsigned int ebus_dma_residue(struct ebus_dma_info *p);
-extern unsigned int ebus_dma_addr(struct ebus_dma_info *p);
-extern void ebus_dma_enable(struct ebus_dma_info *p, int on);
-
-extern struct linux_ebus                *ebus_chain;
-
-extern void ebus_init(void);
-
-#define for_each_ebus(bus)                                              \
-        for((bus) = ebus_chain; (bus); (bus) = (bus)->next)
-
-#define for_each_ebusdev(dev, bus)                                      \
-        for((dev) = (bus)->devices; (dev); (dev) = (dev)->next)
-
-#define for_each_edevchild(dev, child)                                  \
-        for((child) = (dev)->children; (child); (child) = (child)->next)
-
-#endif /* !(__SPARC64_EBUS_H) */
diff --git a/arch/sparc/include/asm/ebus_dma.h b/arch/sparc/include/asm/ebus_dma.h
new file mode 100644
index 00000000000..f07a5b541c9
--- /dev/null
+++ b/arch/sparc/include/asm/ebus_dma.h
@@ -0,0 +1,35 @@
+#ifndef __ASM_SPARC_EBUS_DMA_H
+#define __ASM_SPARC_EBUS_DMA_H
+
+struct ebus_dma_info {
+        spinlock_t      lock;
+        void __iomem    *regs;
+
+        unsigned int    flags;
+#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER         0x00000001
+#define EBUS_DMA_FLAG_TCI_DISABLE               0x00000002
+
+        /* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is
+         * set.
+         */
+        void (*callback)(struct ebus_dma_info *p, int event, void *cookie);
+        void *client_cookie;
+        unsigned int    irq;
+#define EBUS_DMA_EVENT_ERROR    1
+#define EBUS_DMA_EVENT_DMA      2
+#define EBUS_DMA_EVENT_DEVICE   4
+
+        unsigned char   name[64];
+};
+
+extern int ebus_dma_register(struct ebus_dma_info *p);
+extern int ebus_dma_irq_enable(struct ebus_dma_info *p, int on);
+extern void ebus_dma_unregister(struct ebus_dma_info *p);
+extern int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr,
+                            size_t len);
+extern void ebus_dma_prepare(struct ebus_dma_info *p, int write);
+extern unsigned int ebus_dma_residue(struct ebus_dma_info *p);
+extern unsigned int ebus_dma_addr(struct ebus_dma_info *p);
+extern void ebus_dma_enable(struct ebus_dma_info *p, int on);
+
+#endif /* __ASM_SPARC_EBUS_DMA_H */
diff --git a/arch/sparc/include/asm/elf_32.h b/arch/sparc/include/asm/elf_32.h
index d043f80bc2f..b7ab6054782 100644
--- a/arch/sparc/include/asm/elf_32.h
+++ b/arch/sparc/include/asm/elf_32.h
@@ -105,11 +105,8 @@ typedef struct {
 #define ELF_DATA        ELFDATA2MSB
 
 #define USE_ELF_CORE_DUMP
-#ifndef CONFIG_SUN4
+
 #define ELF_EXEC_PAGESIZE       4096
-#else
-#define ELF_EXEC_PAGESIZE       8192
-#endif
 
 
 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
@@ -126,7 +123,7 @@ typedef struct {
 /* Sun4c has none of the capabilities, most sun4m's have them all.
  * XXX This is gross, set some global variable at boot time. -DaveM
  */
-#define ELF_HWCAP       ((ARCH_SUN4C_SUN4) ? 0 : \
+#define ELF_HWCAP       ((ARCH_SUN4C) ? 0 : \
                          (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | \
                           HWCAP_SPARC_SWAP | \
                           ((srmmu_modtype != Cypress && \
diff --git a/arch/sparc/include/asm/fhc.h b/arch/sparc/include/asm/fhc.h
index 788cbc46a11..57f1b303ad5 100644
--- a/arch/sparc/include/asm/fhc.h
+++ b/arch/sparc/include/asm/fhc.h
@@ -1,5 +1,4 @@
-/*
- * fhc.h: Structures for central/fhc pseudo driver on Sunfire/Starfire/Wildfire.
+/* fhc.h: FHC and Clock board register definitions.
  *
  * Copyright (C) 1997, 1999 David S. Miller (davem@redhat.com)
  */
@@ -7,14 +6,6 @@
 #ifndef _SPARC64_FHC_H
 #define _SPARC64_FHC_H
 
-#include <linux/timer.h>
-
-#include <asm/oplib.h>
-#include <asm/prom.h>
-#include <asm/upa.h>
-
-struct linux_fhc;
-
 /* Clock board register offsets. */
 #define CLOCK_CTRL      0x00UL  /* Main control */
 #define CLOCK_STAT1     0x10UL  /* Status one */
@@ -29,21 +20,7 @@ struct linux_fhc;
 #define CLOCK_CTRL_MLED         0x02    /* Mid LED, 1 == on */
 #define CLOCK_CTRL_RLED         0x01    /* RIght LED, 1 == on */
 
-struct linux_central {
-        struct linux_fhc                *child;
-        unsigned long                   cfreg;
-        unsigned long                   clkregs;
-        unsigned long                   clkver;
-        int                             slots;
-        struct device_node              *prom_node;
-
-        struct linux_prom_ranges        central_ranges[PROMREG_MAX];
-        int                             num_central_ranges;
-};
-
 /* Firehose controller register offsets */
-struct fhc_regs {
-        unsigned long                   pregs;  /* FHC internal regs */
 #define FHC_PREGS_ID    0x00UL  /* FHC ID */
 #define  FHC_ID_VERS            0xf0000000 /* Version of this FHC               */
 #define  FHC_ID_PARTID          0x0ffff000 /* Part ID code (0x0f9f == FHC)      */
@@ -90,32 +67,14 @@ struct fhc_regs {
 #define  FHC_JTAG_CTRL_MENAB    0x80000000 /* Indicates this is JTAG Master      */
 #define  FHC_JTAG_CTRL_MNONE    0x40000000 /* Indicates no JTAG Master present   */
 #define FHC_PREGS_JCMD  0x100UL /* FHC JTAG Command Register */
-        unsigned long                   ireg;   /* FHC IGN reg */
 #define FHC_IREG_IGN    0x00UL  /* This FHC's IGN */
-        unsigned long                   ffregs; /* FHC fanfail regs */
 #define FHC_FFREGS_IMAP 0x00UL  /* FHC Fanfail IMAP */
 #define FHC_FFREGS_ICLR 0x10UL  /* FHC Fanfail ICLR */
-        unsigned long                   sregs;  /* FHC system regs */
 #define FHC_SREGS_IMAP  0x00UL  /* FHC System IMAP */
 #define FHC_SREGS_ICLR  0x10UL  /* FHC System ICLR */
-        unsigned long                   uregs;  /* FHC uart regs */
 #define FHC_UREGS_IMAP  0x00UL  /* FHC Uart IMAP */
 #define FHC_UREGS_ICLR  0x10UL  /* FHC Uart ICLR */
-        unsigned long                   tregs;  /* FHC TOD regs */
 #define FHC_TREGS_IMAP  0x00UL  /* FHC TOD IMAP */
 #define FHC_TREGS_ICLR  0x10UL  /* FHC TOD ICLR */
-};
-
-struct linux_fhc {
-        struct linux_fhc                *next;
-        struct linux_central            *parent;        /* NULL if not central FHC */
-        struct fhc_regs                 fhc_regs;
-        int                             board;
-        int                             jtag_master;
-        struct device_node              *prom_node;
-
-        struct linux_prom_ranges        fhc_ranges[PROMREG_MAX];
-        int                             num_fhc_ranges;
-};
 
 #endif /* !(_SPARC64_FHC_H) */
diff --git a/arch/sparc/include/asm/floppy_32.h b/arch/sparc/include/asm/floppy_32.h
index ae3f00bf22f..c792830636d 100644
--- a/arch/sparc/include/asm/floppy_32.h
+++ b/arch/sparc/include/asm/floppy_32.h
@@ -6,6 +6,9 @@
 #ifndef __ASM_SPARC_FLOPPY_H
 #define __ASM_SPARC_FLOPPY_H
 
+#include <linux/of.h>
+#include <linux/of_device.h>
+
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/system.h>
@@ -343,7 +346,7 @@ static int sun_floppy_init(void)
         r.flags = fd_regs[0].which_io;
         r.start = fd_regs[0].phys_addr;
         sun_fdc = (struct sun_flpy_controller *)
-            sbus_ioremap(&r, 0, fd_regs[0].reg_size, "floppy");
+            of_ioremap(&r, 0, fd_regs[0].reg_size, "floppy");
 
         /* Last minute sanity check... */
         if(sun_fdc->status_82072 == 0xff) {
@@ -385,4 +388,15 @@ static int sparc_eject(void)
 
 #define EXTRA_FLOPPY_PARAMS
 
+static DEFINE_SPINLOCK(dma_spin_lock);
+
+#define claim_dma_lock() \
+({      unsigned long flags; \
+        spin_lock_irqsave(&dma_spin_lock, flags); \
+        flags; \
+})
+
+#define release_dma_lock(__flags) \
+        spin_unlock_irqrestore(&dma_spin_lock, __flags);
+
 #endif /* !(__ASM_SPARC_FLOPPY_H) */
diff --git a/arch/sparc/include/asm/floppy_64.h b/arch/sparc/include/asm/floppy_64.h
index c39db1060bc..36439d67ad7 100644
--- a/arch/sparc/include/asm/floppy_64.h
+++ b/arch/sparc/include/asm/floppy_64.h
@@ -1,6 +1,6 @@
 /* floppy.h: Sparc specific parts of the Floppy driver.
  *
- * Copyright (C) 1996, 2007 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1996, 2007, 2008 David S. Miller (davem@davemloft.net)
  * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
  *
  * Ultra/PCI support added: Sep 1997  Eddie C. Dost  (ecd@skynet.be)
@@ -9,18 +9,11 @@
 #ifndef __ASM_SPARC64_FLOPPY_H
 #define __ASM_SPARC64_FLOPPY_H
 
-#include <linux/init.h>
-#include <linux/pci.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/dma-mapping.h>
 
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/idprom.h>
-#include <asm/oplib.h>
 #include <asm/auxio.h>
-#include <asm/sbus.h>
-#include <asm/irq.h>
-
 
 /*
  * Define this to enable exchanging drive 0 and 1 if only drive 1 is
@@ -50,7 +43,7 @@ struct sun_flpy_controller {
 /* You'll only ever find one controller on an Ultra anyways. */
 static struct sun_flpy_controller *sun_fdc = (struct sun_flpy_controller *)-1;
 unsigned long fdc_status;
-static struct sbus_dev *floppy_sdev = NULL;
+static struct of_device *floppy_op = NULL;
 
 struct sun_floppy_ops {
         unsigned char   (*fd_inb) (unsigned long port);
@@ -291,12 +284,11 @@ static int sun_fd_eject(int drive)
         return 0;
 }
 
-#ifdef CONFIG_PCI
-#include <asm/ebus.h>
+#include <asm/ebus_dma.h>
 #include <asm/ns87303.h>
 
 static struct ebus_dma_info sun_pci_fd_ebus_dma;
-static struct pci_dev *sun_pci_ebus_dev;
+static struct device *sun_floppy_dev;
 static int sun_pci_broken_drive = -1;
 
 struct sun_pci_dma_op {
@@ -377,7 +369,7 @@ static void sun_pci_fd_enable_dma(void)
         sun_pci_dma_pending.addr = -1U;
 
         sun_pci_dma_current.addr =
-                pci_map_single(sun_pci_ebus_dev,
+                dma_map_single(sun_floppy_dev,
                                sun_pci_dma_current.buf,
                                sun_pci_dma_current.len,
                                sun_pci_dma_current.direction);
@@ -394,7 +386,7 @@ static void sun_pci_fd_disable_dma(void)
 {
         ebus_dma_enable(&sun_pci_fd_ebus_dma, 0);
         if (sun_pci_dma_current.addr != -1U)
-                pci_unmap_single(sun_pci_ebus_dev,
+                dma_unmap_single(sun_floppy_dev,
                                  sun_pci_dma_current.addr,
                                  sun_pci_dma_current.len,
                                  sun_pci_dma_current.direction);
@@ -404,9 +396,9 @@ static void sun_pci_fd_disable_dma(void)
 static void sun_pci_fd_set_dma_mode(int mode)
 {
         if (mode == DMA_MODE_WRITE)
-                sun_pci_dma_pending.direction = PCI_DMA_TODEVICE;
+                sun_pci_dma_pending.direction = DMA_TO_DEVICE;
         else
-                sun_pci_dma_pending.direction = PCI_DMA_FROMDEVICE;
+                sun_pci_dma_pending.direction = DMA_FROM_DEVICE;
 
         ebus_dma_prepare(&sun_pci_fd_ebus_dma, mode != DMA_MODE_WRITE);
 }
@@ -538,80 +530,84 @@ static int sun_pci_fd_test_drive(unsigned long port, int drive)
 #undef MSR
 #undef DOR
 
-#endif /* CONFIG_PCI */
-
-#ifdef CONFIG_PCI
-static int __init ebus_fdthree_p(struct linux_ebus_device *edev)
+static int __init ebus_fdthree_p(struct device_node *dp)
 {
-        if (!strcmp(edev->prom_node->name, "fdthree"))
+        if (!strcmp(dp->name, "fdthree"))
                 return 1;
-        if (!strcmp(edev->prom_node->name, "floppy")) {
+        if (!strcmp(dp->name, "floppy")) {
                 const char *compat;
 
-                compat = of_get_property(edev->prom_node,
-                                         "compatible", NULL);
+                compat = of_get_property(dp, "compatible", NULL);
                 if (compat && !strcmp(compat, "fdthree"))
                         return 1;
         }
         return 0;
 }
-#endif
 
 static unsigned long __init sun_floppy_init(void)
 {
-        char state[128];
-        struct sbus_bus *bus;
-        struct sbus_dev *sdev = NULL;
         static int initialized = 0;
+        struct device_node *dp;
+        struct of_device *op;
+        const char *prop;
+        char state[128];
 
         if (initialized)
                 return sun_floppy_types[0];
         initialized = 1;
 
-        for_all_sbusdev (sdev, bus) {
-                if (!strcmp(sdev->prom_name, "SUNW,fdtwo"))
+        op = NULL;
+
+        for_each_node_by_name(dp, "SUNW,fdtwo") {
+                if (strcmp(dp->parent->name, "sbus"))
+                        continue;
+                op = of_find_device_by_node(dp);
+                if (op)
                         break;
         }
-        if(sdev) {
-                floppy_sdev = sdev;
-                FLOPPY_IRQ = sdev->irqs[0];
+        if (op) {
+                floppy_op = op;
+                FLOPPY_IRQ = op->irqs[0];
         } else {
-#ifdef CONFIG_PCI
-                struct linux_ebus *ebus;
-                struct linux_ebus_device *edev = NULL;
-                unsigned long config = 0;
+                struct device_node *ebus_dp;
                 void __iomem *auxio_reg;
                 const char *state_prop;
+                unsigned long config;
 
-                for_each_ebus(ebus) {
-                        for_each_ebusdev(edev, ebus) {
-                                if (ebus_fdthree_p(edev))
-                                        goto ebus_done;
+                dp = NULL;
+                for_each_node_by_name(ebus_dp, "ebus") {
+                        for (dp = ebus_dp->child; dp; dp = dp->sibling) {
+                                if (ebus_fdthree_p(dp))
+                                        goto found_fdthree;
                         }
                 }
-        ebus_done:
-                if (!edev)
+        found_fdthree:
+                if (!dp)
+                        return 0;
+
+                op = of_find_device_by_node(dp);
+                if (!op)
                         return 0;
 
-                state_prop = of_get_property(edev->prom_node, "status", NULL);
+                state_prop = of_get_property(op->node, "status", NULL);
                 if (state_prop && !strncmp(state_prop, "disabled", 8))
                         return 0;
 
-                FLOPPY_IRQ = edev->irqs[0];
+                FLOPPY_IRQ = op->irqs[0];
 
                 /* Make sure the high density bit is set, some systems
                  * (most notably Ultra5/Ultra10) come up with it clear.
                  */
-                auxio_reg = (void __iomem *) edev->resource[2].start;
+                auxio_reg = (void __iomem *) op->resource[2].start;
                 writel(readl(auxio_reg)|0x2, auxio_reg);
 
-                sun_pci_ebus_dev = ebus->self;
+                sun_floppy_dev = &op->dev;
 
                 spin_lock_init(&sun_pci_fd_ebus_dma.lock);
 
                 /* XXX ioremap */
                 sun_pci_fd_ebus_dma.regs = (void __iomem *)
-                        edev->resource[1].start;
+                        op->resource[1].start;
                 if (!sun_pci_fd_ebus_dma.regs)
                         return 0;
 
@@ -625,7 +621,7 @@ static unsigned long __init sun_floppy_init(void)
                         return 0;
 
                 /* XXX ioremap */
-                sun_fdc = (struct sun_flpy_controller *)edev->resource[0].start;
+                sun_fdc = (struct sun_flpy_controller *) op->resource[0].start;
 
                 sun_fdops.fd_inb = sun_pci_fd_inb;
                 sun_fdops.fd_outb = sun_pci_fd_outb;
@@ -662,12 +658,15 @@ static unsigned long __init sun_floppy_init(void)
                 /*
                  * Find NS87303 SuperIO config registers (through ecpp).
                  */
-                for_each_ebus(ebus) {
-                        for_each_ebusdev(edev, ebus) {
-                                if (!strcmp(edev->prom_node->name, "ecpp")) {
-                                        config = edev->resource[1].start;
-                                        goto config_done;
-                                }
+                config = 0;
+                for (dp = ebus_dp->child; dp; dp = dp->sibling) {
+                        if (!strcmp(dp->name, "ecpp")) {
+                                struct of_device *ecpp_op;
+
+                                ecpp_op = of_find_device_by_node(dp);
+                                if (ecpp_op)
+                                        config = ecpp_op->resource[1].start;
+                                goto config_done;
                         }
                 }
         config_done:
@@ -716,26 +715,23 @@ static unsigned long __init sun_floppy_init(void)
 #endif /* PCI_FDC_SWAP_DRIVES */
 
                 return sun_floppy_types[0];
-#else
-                return 0;
-#endif
         }
-        prom_getproperty(sdev->prom_node, "status", state, sizeof(state));
-        if(!strncmp(state, "disabled", 8))
+        prop = of_get_property(op->node, "status", NULL);
+        if (prop && !strncmp(state, "disabled", 8))
                 return 0;
 
         /*
-         * We cannot do sbus_ioremap here: it does request_region,
+         * We cannot do of_ioremap here: it does request_region,
          * which the generic floppy driver tries to do once again.
          * But we must use the sdev resource values as they have
          * had parent ranges applied.
          */
         sun_fdc = (struct sun_flpy_controller *)
-                (sdev->resource[0].start +
-                 ((sdev->resource[0].flags & 0x1ffUL) << 32UL));
+                (op->resource[0].start +
+                 ((op->resource[0].flags & 0x1ffUL) << 32UL));
 
         /* Last minute sanity check... */
-        if(sbus_readb(&sun_fdc->status1_82077) == 0xff) {
+        if (sbus_readb(&sun_fdc->status1_82077) == 0xff) {
                 sun_fdc = (struct sun_flpy_controller *)-1;
                 return 0;
         }
diff --git a/arch/sparc/include/asm/gpio.h b/arch/sparc/include/asm/gpio.h
new file mode 100644
index 00000000000..a0e3ac0af59
--- /dev/null
+++ b/arch/sparc/include/asm/gpio.h
@@ -0,0 +1,36 @@
+#ifndef __ASM_SPARC_GPIO_H
+#define __ASM_SPARC_GPIO_H
+
+#include <linux/errno.h>
+#include <asm-generic/gpio.h>
+
+#ifdef CONFIG_GPIOLIB
+
+static inline int gpio_get_value(unsigned int gpio)
+{
+        return __gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned int gpio, int value)
+{
+        __gpio_set_value(gpio, value);
+}
+
+static inline int gpio_cansleep(unsigned int gpio)
+{
+        return __gpio_cansleep(gpio);
+}
+
+static inline int gpio_to_irq(unsigned int gpio)
+{
+        return -ENOSYS;
+}
+
+static inline int irq_to_gpio(unsigned int irq)
+{
+        return -EINVAL;
+}
+
+#endif /* CONFIG_GPIOLIB */
+
+#endif /* __ASM_SPARC_GPIO_H */
diff --git a/arch/sparc/include/asm/io-unit.h b/arch/sparc/include/asm/io-unit.h
index 96823b47fd4..01ab2f613e9 100644
--- a/arch/sparc/include/asm/io-unit.h
+++ b/arch/sparc/include/asm/io-unit.h
@@ -55,8 +55,4 @@ struct iounit_struct {
 #define IOUNIT_BMAPM_START      IOUNIT_BMAP2_END
 #define IOUNIT_BMAPM_END        ((IOUNIT_DMA_SIZE - IOUNIT_DVMA_SIZE) >> PAGE_SHIFT)
 
-extern __u32 iounit_map_dma_init(struct sbus_bus *, int);
-#define iounit_map_dma_finish(sbus, addr, len) mmu_release_scsi_one(addr, len, sbus)
-extern __u32 iounit_map_dma_page(__u32, void *, struct sbus_bus *);
-
 #endif /* !(_SPARC_IO_UNIT_H) */
diff --git a/arch/sparc/include/asm/io_32.h b/arch/sparc/include/asm/io_32.h
index 10d7da45007..93fe21e02c8 100644
--- a/arch/sparc/include/asm/io_32.h
+++ b/arch/sparc/include/asm/io_32.h
@@ -293,14 +293,6 @@ extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
 
 /*
- * Bus number may be in res->flags... somewhere.
- */
-extern void __iomem *sbus_ioremap(struct resource *res, unsigned long offset,
-    unsigned long size, char *name);
-extern void sbus_iounmap(volatile void __iomem *vaddr, unsigned long size);
-
-
-/*
  * At the moment, we do not use CMOS_READ anywhere outside of rtc.c,
  * so rtc_port is static in it. This should not change unless a new
  * hardware pops up.
@@ -308,6 +300,17 @@ extern void sbus_iounmap(volatile void __iomem *vaddr, unsigned long size);
 #define RTC_PORT(x)   (rtc_port + (x))
 #define RTC_ALWAYS_BCD  0
 
+static inline int sbus_can_dma_64bit(void)
+{
+        return 0; /* actually, sparc_cpu_model==sun4d */
+}
+static inline int sbus_can_burst64(void)
+{
+        return 0; /* actually, sparc_cpu_model==sun4d */
+}
+struct device;
+extern void sbus_set_sbus64(struct device *, int);
+
 #endif
 
 #define __ARCH_HAS_NO_PAGE_ZERO_MAPPED          1
diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index 0bff078ffdd..4aee21dc9c6 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -482,18 +482,16 @@ struct pci_dev;
 extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
 
-/* Similarly for SBUS. */
-#define sbus_ioremap(__res, __offset, __size, __name) \
-({      unsigned long __ret; \
-        __ret  = (__res)->start + (((__res)->flags & 0x1ffUL) << 32UL); \
-        __ret += (unsigned long) (__offset); \
-        if (! request_region((__ret), (__size), (__name))) \
-                __ret = 0UL; \
-        (void __iomem *) __ret; \
-})
-
-#define sbus_iounmap(__addr, __size)    \
-        release_region((unsigned long)(__addr), (__size))
+static inline int sbus_can_dma_64bit(void)
+{
+        return 1;
+}
+static inline int sbus_can_burst64(void)
+{
+        return 1;
+}
+struct device;
+extern void sbus_set_sbus64(struct device *, int);
 
 /*
  * Convert a physical pointer to a virtual kernel pointer for /dev/mem
diff --git a/arch/sparc/include/asm/iommu_64.h b/arch/sparc/include/asm/iommu_64.h
index d7b9afcba08..caf798b5619 100644
--- a/arch/sparc/include/asm/iommu_64.h
+++ b/arch/sparc/include/asm/iommu_64.h
@@ -48,6 +48,9 @@ struct strbuf {
         unsigned long           strbuf_control;
         unsigned long           strbuf_pflush;
         unsigned long           strbuf_fsync;
+        unsigned long           strbuf_err_stat;
+        unsigned long           strbuf_tag_diag;
+        unsigned long           strbuf_line_diag;
         unsigned long           strbuf_ctxflush;
         unsigned long           strbuf_ctxmatch_base;
         unsigned long           strbuf_flushflag_pa;
diff --git a/arch/sparc/include/asm/irq_64.h b/arch/sparc/include/asm/irq_64.h
index e3dd9303643..71673eca366 100644
--- a/arch/sparc/include/asm/irq_64.h
+++ b/arch/sparc/include/asm/irq_64.h
@@ -56,7 +56,6 @@ extern unsigned int sun4u_build_msi(u32 portid, unsigned int *virt_irq_p,
                                     unsigned long imap_base,
                                     unsigned long iclr_base);
 extern void sun4u_destroy_msi(unsigned int virt_irq);
-extern unsigned int sbus_build_irq(void *sbus, unsigned int ino);
 
 extern unsigned char virt_irq_alloc(unsigned int dev_handle,
                                     unsigned int dev_ino);
diff --git a/arch/sparc/include/asm/mc146818rtc_64.h b/arch/sparc/include/asm/mc146818rtc_64.h
index e9c0fcc25c6..7238d174e0e 100644
--- a/arch/sparc/include/asm/mc146818rtc_64.h
+++ b/arch/sparc/include/asm/mc146818rtc_64.h
@@ -7,12 +7,8 @@
 #include <asm/io.h>
 
 #ifndef RTC_PORT
-#ifdef CONFIG_PCI
-extern unsigned long ds1287_regs;
-#else
-#define ds1287_regs (0UL)
-#endif
-#define RTC_PORT(x)     (ds1287_regs + (x))
+extern unsigned long cmos_regs;
+#define RTC_PORT(x)     (cmos_regs + (x))
 #define RTC_ALWAYS_BCD  0
 #endif
 
@@ -29,6 +25,4 @@ outb_p((addr),RTC_PORT(0)); \
 outb_p((val),RTC_PORT(1)); \
 })
 
-#define RTC_IRQ 8
-
 #endif /* __ASM_SPARC64_MC146818RTC_H */
diff --git a/arch/sparc/include/asm/memctrl.h b/arch/sparc/include/asm/memctrl.h
new file mode 100644
index 00000000000..4065c56af7b
--- /dev/null
+++ b/arch/sparc/include/asm/memctrl.h
@@ -0,0 +1,9 @@
+#ifndef _SPARC_MEMCTRL_H
+#define _SPARC_MEMCTRL_H
+
+typedef int (*dimm_printer_t)(int synd_code, unsigned long paddr, char *buf, int buflen);
+
+int register_dimm_printer(dimm_printer_t func);
+void unregister_dimm_printer(dimm_printer_t func);
+
+#endif /* _SPARC_MEMCTRL_H */
diff --git a/arch/sparc/include/asm/mostek.h b/arch/sparc/include/asm/mostek.h
deleted file mode 100644
index 433be3e0a69..00000000000
--- a/arch/sparc/include/asm/mostek.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef ___ASM_SPARC_MOSTEK_H
-#define ___ASM_SPARC_MOSTEK_H
-#if defined(__sparc__) && defined(__arch64__)
-#include <asm/mostek_64.h>
-#else
-#include <asm/mostek_32.h>
-#endif
-#endif
diff --git a/arch/sparc/include/asm/mostek_32.h b/arch/sparc/include/asm/mostek_32.h
deleted file mode 100644
index a99590c4c50..00000000000
--- a/arch/sparc/include/asm/mostek_32.h
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- * mostek.h:  Describes the various Mostek time of day clock registers.
- *
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu)
- * Added intersil code 05/25/98 Chris Davis (cdavis@cois.on.ca)
- */
-
-#ifndef _SPARC_MOSTEK_H
-#define _SPARC_MOSTEK_H
-
-#include <asm/idprom.h>
-#include <asm/io.h>
-
-/*       M48T02 Register Map (adapted from Sun NVRAM/Hostid FAQ)
- *
- *                             Data
- * Address                                                 Function
- *        Bit 7 Bit 6 Bit 5 Bit 4Bit 3 Bit 2 Bit 1 Bit 0
- *   7ff  -     -     -     -    -     -     -     -       Year 00-99
- *   7fe  0     0     0     -    -     -     -     -      Month 01-12
- *   7fd  0     0     -     -    -     -     -     -       Date 01-31
- *   7fc  0     FT    0     0    0     -     -     -        Day 01-07
- *   7fb  KS    0     -     -    -     -     -     -      Hours 00-23
- *   7fa  0     -     -     -    -     -     -     -    Minutes 00-59
- *   7f9  ST    -     -     -    -     -     -     -    Seconds 00-59
- *   7f8  W     R     S     -    -     -     -     -    Control
- *
- *   * ST is STOP BIT
- *   * W is WRITE BIT
- *   * R is READ BIT
- *   * S is SIGN BIT
- *   * FT is FREQ TEST BIT
- *   * KS is KICK START BIT
- */
-
-/* The Mostek 48t02 real time clock and NVRAM chip. The registers
- * other than the control register are in binary coded decimal. Some
- * control bits also live outside the control register.
- */
-#define mostek_read(_addr)              readb(_addr)
-#define mostek_write(_addr,_val)        writeb(_val, _addr)
-#define MOSTEK_EEPROM           0x0000UL
-#define MOSTEK_IDPROM           0x07d8UL
-#define MOSTEK_CREG             0x07f8UL
-#define MOSTEK_SEC              0x07f9UL
-#define MOSTEK_MIN              0x07faUL
-#define MOSTEK_HOUR             0x07fbUL
-#define MOSTEK_DOW              0x07fcUL
-#define MOSTEK_DOM              0x07fdUL
-#define MOSTEK_MONTH            0x07feUL
-#define MOSTEK_YEAR             0x07ffUL
-
-struct mostek48t02 {
-        volatile char eeprom[2008];     /* This is the eeprom, don't touch! */
-        struct idprom idprom;           /* The idprom lives here. */
-        volatile unsigned char creg;    /* Control register */
-        volatile unsigned char sec;     /* Seconds (0-59) */
-        volatile unsigned char min;     /* Minutes (0-59) */
-        volatile unsigned char hour;    /* Hour (0-23) */
-        volatile unsigned char dow;     /* Day of the week (1-7) */
-        volatile unsigned char dom;     /* Day of the month (1-31) */
-        volatile unsigned char month;   /* Month of year (1-12) */
-        volatile unsigned char year;    /* Year (0-99) */
-};
-
-extern spinlock_t mostek_lock;
-extern void __iomem *mstk48t02_regs;
-
-/* Control register values. */
-#define MSTK_CREG_WRITE 0x80    /* Must set this before placing values. */
-#define MSTK_CREG_READ  0x40    /* Stop updates to allow a clean read. */
-#define MSTK_CREG_SIGN  0x20    /* Slow/speed clock in calibration mode. */
-
-/* Control bits that live in the other registers. */
-#define MSTK_STOP       0x80    /* Stop the clock oscillator. (sec) */
-#define MSTK_KICK_START 0x80    /* Kick start the clock chip. (hour) */
-#define MSTK_FREQ_TEST  0x40    /* Frequency test mode. (day) */
-
-#define MSTK_YEAR_ZERO       1968   /* If year reg has zero, it is 1968. */
-#define MSTK_CVT_YEAR(yr)  ((yr) + MSTK_YEAR_ZERO)
-
-/* Masks that define how much space each value takes up. */
-#define MSTK_SEC_MASK   0x7f
-#define MSTK_MIN_MASK   0x7f
-#define MSTK_HOUR_MASK  0x3f
-#define MSTK_DOW_MASK   0x07
-#define MSTK_DOM_MASK   0x3f
-#define MSTK_MONTH_MASK 0x1f
-#define MSTK_YEAR_MASK  0xffU
-
-/* Binary coded decimal conversion macros. */
-#define MSTK_REGVAL_TO_DECIMAL(x)  (((x) & 0x0F) + 0x0A * ((x) >> 0x04))
-#define MSTK_DECIMAL_TO_REGVAL(x)  ((((x) / 0x0A) << 0x04) + ((x) % 0x0A))
-
-/* Generic register set and get macros for internal use. */
-#define MSTK_GET(regs,var,mask) (MSTK_REGVAL_TO_DECIMAL(((struct mostek48t02 *)regs)->var & MSTK_ ## mask ## _MASK))
-#define MSTK_SET(regs,var,value,mask) do { ((struct mostek48t02 *)regs)->var &= ~(MSTK_ ## mask ## _MASK); ((struct mostek48t02 *)regs)->var |= MSTK_DECIMAL_TO_REGVAL(value) & (MSTK_ ## mask ## _MASK); } while (0)
-
-/* Macros to make register access easier on our fingers. These give you
- * the decimal value of the register requested if applicable. You pass
- * the a pointer to a 'struct mostek48t02'.
- */
-#define MSTK_REG_CREG(regs)     (((struct mostek48t02 *)regs)->creg)
-#define MSTK_REG_SEC(regs)      MSTK_GET(regs,sec,SEC)
-#define MSTK_REG_MIN(regs)      MSTK_GET(regs,min,MIN)
-#define MSTK_REG_HOUR(regs)     MSTK_GET(regs,hour,HOUR)
-#define MSTK_REG_DOW(regs)      MSTK_GET(regs,dow,DOW)
-#define MSTK_REG_DOM(regs)      MSTK_GET(regs,dom,DOM)
-#define MSTK_REG_MONTH(regs)    MSTK_GET(regs,month,MONTH)
-#define MSTK_REG_YEAR(regs)     MSTK_GET(regs,year,YEAR)
-
-#define MSTK_SET_REG_SEC(regs,value)    MSTK_SET(regs,sec,value,SEC)
-#define MSTK_SET_REG_MIN(regs,value)    MSTK_SET(regs,min,value,MIN)
-#define MSTK_SET_REG_HOUR(regs,value)   MSTK_SET(regs,hour,value,HOUR)
-#define MSTK_SET_REG_DOW(regs,value)    MSTK_SET(regs,dow,value,DOW)
-#define MSTK_SET_REG_DOM(regs,value)    MSTK_SET(regs,dom,value,DOM)
-#define MSTK_SET_REG_MONTH(regs,value)  MSTK_SET(regs,month,value,MONTH)
-#define MSTK_SET_REG_YEAR(regs,value)   MSTK_SET(regs,year,value,YEAR)
-
-
-/* The Mostek 48t08 clock chip. Found on Sun4m's I think. It has the
- * same (basically) layout of the 48t02 chip except for the extra
- * NVRAM on board (8 KB against the 48t02's 2 KB).
- */
-struct mostek48t08 {
-        char offset[6*1024];         /* Magic things may be here, who knows? */
-        struct mostek48t02 regs;     /* Here is what we are interested in.   */
-};
-
-#ifdef CONFIG_SUN4
-enum sparc_clock_type { MSTK48T02, MSTK48T08, \
-INTERSIL, MSTK_INVALID };
-#else
-enum sparc_clock_type { MSTK48T02, MSTK48T08, \
-MSTK_INVALID };
-#endif
-
-#ifdef CONFIG_SUN4
-/* intersil on a sun 4/260 code  data from harris doc */
-struct intersil_dt {
-        volatile unsigned char int_csec;
-        volatile unsigned char int_hour;
-        volatile unsigned char int_min;
-        volatile unsigned char int_sec;
-        volatile unsigned char int_month;
-        volatile unsigned char int_day;
-        volatile unsigned char int_year;
-        volatile unsigned char int_dow;
-};
-
-struct intersil {
-        struct intersil_dt clk;
-        struct intersil_dt cmp;
-        volatile unsigned char int_intr_reg;
-        volatile unsigned char int_cmd_reg;
-};
-
-#define INTERSIL_STOP        0x0
-#define INTERSIL_START       0x8
-#define INTERSIL_INTR_DISABLE   0x0
-#define INTERSIL_INTR_ENABLE   0x10
-#define INTERSIL_32K            0x0
-#define INTERSIL_NORMAL         0x0
-#define INTERSIL_24H            0x4
-#define INTERSIL_INT_100HZ      0x2
-
-/* end of intersil info */
-#endif
-
-#endif /* !(_SPARC_MOSTEK_H) */
diff --git a/arch/sparc/include/asm/mostek_64.h b/arch/sparc/include/asm/mostek_64.h
deleted file mode 100644
index c5652de2ace..00000000000
--- a/arch/sparc/include/asm/mostek_64.h
+++ /dev/null
@@ -1,143 +0,0 @@
-/* mostek.h:  Describes the various Mostek time of day clock registers.
- *
- * Copyright (C) 1995 David S. Miller (davem@davemloft.net)
- * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu)
- */
-
-#ifndef _SPARC64_MOSTEK_H
-#define _SPARC64_MOSTEK_H
-
-#include <asm/idprom.h>
-
-/*       M48T02 Register Map (adapted from Sun NVRAM/Hostid FAQ)
- *
- *                             Data
- * Address                                                 Function
- *        Bit 7 Bit 6 Bit 5 Bit 4Bit 3 Bit 2 Bit 1 Bit 0
- *   7ff  -     -     -     -    -     -     -     -       Year 00-99
- *   7fe  0     0     0     -    -     -     -     -      Month 01-12
- *   7fd  0     0     -     -    -     -     -     -       Date 01-31
- *   7fc  0     FT    0     0    0     -     -     -        Day 01-07
- *   7fb  KS    0     -     -    -     -     -     -      Hours 00-23
- *   7fa  0     -     -     -    -     -     -     -    Minutes 00-59
- *   7f9  ST    -     -     -    -     -     -     -    Seconds 00-59
- *   7f8  W     R     S     -    -     -     -     -    Control
- *
- *   * ST is STOP BIT
- *   * W is WRITE BIT
- *   * R is READ BIT
- *   * S is SIGN BIT
- *   * FT is FREQ TEST BIT
- *   * KS is KICK START BIT
- */
-
-/* The Mostek 48t02 real time clock and NVRAM chip. The registers
- * other than the control register are in binary coded decimal. Some
- * control bits also live outside the control register.
- *
- * We now deal with physical addresses for I/O to the chip. -DaveM
- */
-static inline u8 mostek_read(void __iomem *addr)
-{
-        u8 ret;
-
-        __asm__ __volatile__("lduba     [%1] %2, %0"
-                             : "=r" (ret)
-                             : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
-        return ret;
-}
-
-static inline void mostek_write(void __iomem *addr, u8 val)
-{
-        __asm__ __volatile__("stba      %0, [%1] %2"
-                             : /* no outputs */
-                             : "r" (val), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
-}
-
-#define MOSTEK_EEPROM           0x0000UL
-#define MOSTEK_IDPROM           0x07d8UL
-#define MOSTEK_CREG             0x07f8UL
-#define MOSTEK_SEC              0x07f9UL
-#define MOSTEK_MIN              0x07faUL
-#define MOSTEK_HOUR             0x07fbUL
-#define MOSTEK_DOW              0x07fcUL
-#define MOSTEK_DOM              0x07fdUL
-#define MOSTEK_MONTH            0x07feUL
-#define MOSTEK_YEAR             0x07ffUL
-
-extern spinlock_t mostek_lock;
-extern void __iomem *mstk48t02_regs;
-
-/* Control register values. */
-#define MSTK_CREG_WRITE 0x80    /* Must set this before placing values. */
-#define MSTK_CREG_READ  0x40    /* Stop updates to allow a clean read. */
-#define MSTK_CREG_SIGN  0x20    /* Slow/speed clock in calibration mode. */
-
-/* Control bits that live in the other registers. */
-#define MSTK_STOP       0x80    /* Stop the clock oscillator. (sec) */
-#define MSTK_KICK_START 0x80    /* Kick start the clock chip. (hour) */
-#define MSTK_FREQ_TEST  0x40    /* Frequency test mode. (day) */
-
-#define MSTK_YEAR_ZERO       1968   /* If year reg has zero, it is 1968. */
-#define MSTK_CVT_YEAR(yr)  ((yr) + MSTK_YEAR_ZERO)
-
-/* Masks that define how much space each value takes up. */
-#define MSTK_SEC_MASK   0x7f
-#define MSTK_MIN_MASK   0x7f
-#define MSTK_HOUR_MASK  0x3f
-#define MSTK_DOW_MASK   0x07
-#define MSTK_DOM_MASK   0x3f
-#define MSTK_MONTH_MASK 0x1f
-#define MSTK_YEAR_MASK  0xffU
-
-/* Binary coded decimal conversion macros. */
-#define MSTK_REGVAL_TO_DECIMAL(x)  (((x) & 0x0F) + 0x0A * ((x) >> 0x04))
-#define MSTK_DECIMAL_TO_REGVAL(x)  ((((x) / 0x0A) << 0x04) + ((x) % 0x0A))
-
-/* Generic register set and get macros for internal use. */
-#define MSTK_GET(regs,name)     \
-        (MSTK_REGVAL_TO_DECIMAL(mostek_read(regs + MOSTEK_ ## name) & MSTK_ ## name ## _MASK))
-#define MSTK_SET(regs,name,value) \
-do {    u8 __val = mostek_read(regs + MOSTEK_ ## name); \
-        __val &= ~(MSTK_ ## name ## _MASK); \
-        __val |= (MSTK_DECIMAL_TO_REGVAL(value) & \
-                  (MSTK_ ## name ## _MASK)); \
-        mostek_write(regs + MOSTEK_ ## name, __val); \
-} while(0)
-
-/* Macros to make register access easier on our fingers. These give you
- * the decimal value of the register requested if applicable. You pass
- * the a pointer to a 'struct mostek48t02'.
- */
-#define MSTK_REG_CREG(regs)     (mostek_read((regs) + MOSTEK_CREG))
-#define MSTK_REG_SEC(regs)      MSTK_GET(regs,SEC)
-#define MSTK_REG_MIN(regs)      MSTK_GET(regs,MIN)
-#define MSTK_REG_HOUR(regs)     MSTK_GET(regs,HOUR)
-#define MSTK_REG_DOW(regs)      MSTK_GET(regs,DOW)
-#define MSTK_REG_DOM(regs)      MSTK_GET(regs,DOM)
-#define MSTK_REG_MONTH(regs)    MSTK_GET(regs,MONTH)
-#define MSTK_REG_YEAR(regs)     MSTK_GET(regs,YEAR)
-
-#define MSTK_SET_REG_SEC(regs,value)    MSTK_SET(regs,SEC,value)
-#define MSTK_SET_REG_MIN(regs,value)    MSTK_SET(regs,MIN,value)
-#define MSTK_SET_REG_HOUR(regs,value)   MSTK_SET(regs,HOUR,value)
-#define MSTK_SET_REG_DOW(regs,value)    MSTK_SET(regs,DOW,value)
-#define MSTK_SET_REG_DOM(regs,value)    MSTK_SET(regs,DOM,value)
-#define MSTK_SET_REG_MONTH(regs,value)  MSTK_SET(regs,MONTH,value)
-#define MSTK_SET_REG_YEAR(regs,value)   MSTK_SET(regs,YEAR,value)
-
-
-/* The Mostek 48t08 clock chip. Found on Sun4m's I think. It has the
- * same (basically) layout of the 48t02 chip except for the extra
- * NVRAM on board (8 KB against the 48t02's 2 KB).
- */
-#define MOSTEK_48T08_OFFSET     0x0000UL        /* Lower NVRAM portions */
-#define MOSTEK_48T08_48T02      0x1800UL        /* Offset to 48T02 chip */
-
-/* SUN5 systems usually have 48t59 model clock chipsets.  But we keep the older
- * clock chip definitions around just in case.
- */
-#define MOSTEK_48T59_OFFSET     0x0000UL        /* Lower NVRAM portions */
-#define MOSTEK_48T59_48T02      0x1800UL        /* Offset to 48T02 chip */
-
-#endif /* !(_SPARC64_MOSTEK_H) */
diff --git a/arch/sparc/include/asm/obio.h b/arch/sparc/include/asm/obio.h
index 1a7544ceb57..4ade0c8a2c7 100644
--- a/arch/sparc/include/asm/obio.h
+++ b/arch/sparc/include/asm/obio.h
@@ -155,17 +155,6 @@ static inline void bw_set_ctrl(int cpu, unsigned ctrl)
                               "i" (ASI_M_CTL));
 }
 
-extern unsigned char cpu_leds[32];
-
-static inline void show_leds(int cpuid)
-{
-        cpuid &= 0x1e;
-        __asm__ __volatile__ ("stba %0, [%1] %2" : :
-                              "r" ((cpu_leds[cpuid] << 4) | cpu_leds[cpuid+1]),
-                              "r" (ECSR_BASE(cpuid) | BB_LEDS),
-                              "i" (ASI_M_CTL));
-}
-
 static inline unsigned cc_get_ipen(void)
 {
         unsigned pending;
diff --git a/arch/sparc/include/asm/of_device.h b/arch/sparc/include/asm/of_device.h
index bba777a416d..a5d9811f969 100644
--- a/arch/sparc/include/asm/of_device.h
+++ b/arch/sparc/include/asm/of_device.h
@@ -30,6 +30,8 @@ struct of_device
 extern void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name);
 extern void of_iounmap(struct resource *res, void __iomem *base, unsigned long size);
 
+extern void of_propagate_archdata(struct of_device *bus);
+
 /* This is just here during the transition */
 #include <linux/of_platform.h>
 
diff --git a/arch/sparc/include/asm/of_platform.h b/arch/sparc/include/asm/of_platform.h
index 2348ab90a57..90da99059f8 100644
--- a/arch/sparc/include/asm/of_platform.h
+++ b/arch/sparc/include/asm/of_platform.h
@@ -13,9 +13,6 @@
  *
  */
 
-extern struct bus_type ebus_bus_type;
-extern struct bus_type sbus_bus_type;
-
 #define of_bus_type     of_platform_bus_type    /* for compatibility */
 
 #endif
diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h
index b2631da259e..699da05235c 100644
--- a/arch/sparc/include/asm/oplib_32.h
+++ b/arch/sparc/include/asm/oplib_32.h
@@ -21,7 +21,6 @@ enum prom_major_version {
         PROM_V2,      /* sun4c and early sun4m V2 prom */
         PROM_V3,      /* sun4m and later, up to sun4d/sun4e machines V3 */
         PROM_P1275,   /* IEEE compliant ISA based Sun PROM, only sun4u */
-        PROM_SUN4,    /* Old sun4 proms are totally different, but we'll shoehorn it to make it fit */
 };
 
 extern enum prom_major_version prom_vers;
diff --git a/arch/sparc/include/asm/page_32.h b/arch/sparc/include/asm/page_32.h
index cf5fb70ca1c..d1806edc095 100644
--- a/arch/sparc/include/asm/page_32.h
+++ b/arch/sparc/include/asm/page_32.h
@@ -8,11 +8,8 @@
 #ifndef _SPARC_PAGE_H
 #define _SPARC_PAGE_H
 
-#ifdef CONFIG_SUN4
-#define PAGE_SHIFT   13
-#else
 #define PAGE_SHIFT   12
-#endif
+
 #ifndef __ASSEMBLY__
 /* I have my suspicions... -DaveM */
 #define PAGE_SIZE    (1UL << PAGE_SHIFT)
diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h
index b579b910ef5..4274ed13ddb 100644
--- a/arch/sparc/include/asm/page_64.h
+++ b/arch/sparc/include/asm/page_64.h
@@ -38,6 +38,8 @@
 
 #ifndef __ASSEMBLY__
 
+#define WANT_PAGE_VIRTUAL
+
 extern void _clear_page(void *page);
 #define clear_page(X)   _clear_page((void *)(X))
 struct page;
diff --git a/arch/sparc/include/asm/parport.h b/arch/sparc/include/asm/parport.h
index d9830621c90..dff3f0253aa 100644
--- a/arch/sparc/include/asm/parport.h
+++ b/arch/sparc/include/asm/parport.h
@@ -8,7 +8,7 @@
 
 #include <linux/of_device.h>
 
-#include <asm/ebus.h>
+#include <asm/ebus_dma.h>
 #include <asm/ns87303.h>
 #include <asm/prom.h>
 
@@ -215,7 +215,7 @@ static int __devexit ecpp_remove(struct of_device *op)
         return 0;
 }
 
-static struct of_device_id ecpp_match[] = {
+static const struct of_device_id ecpp_match[] = {
         {
                 .name = "ecpp",
         },
diff --git a/arch/sparc/include/asm/pci_32.h b/arch/sparc/include/asm/pci_32.h
index 0ee949d220c..b41c4c19815 100644
--- a/arch/sparc/include/asm/pci_32.h
+++ b/arch/sparc/include/asm/pci_32.h
@@ -3,6 +3,8 @@
 
 #ifdef __KERNEL__
 
+#include <linux/dma-mapping.h>
+
 /* Can be used to override the logic in pci_scan_bus for skipping
  * already-configured bus numbers - to be used for buggy BIOSes
  * or architectures with incomplete PCI setup by the loader.
diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
index 08237fda887..e0cabe790ec 100644
--- a/arch/sparc/include/asm/pgtable_32.h
+++ b/arch/sparc/include/asm/pgtable_32.h
@@ -14,11 +14,7 @@
 #include <linux/spinlock.h>
 #include <linux/swap.h>
 #include <asm/types.h>
-#ifdef CONFIG_SUN4
-#include <asm/pgtsun4.h>
-#else
 #include <asm/pgtsun4c.h>
-#endif
 #include <asm/pgtsrmmu.h>
 #include <asm/vac-ops.h>
 #include <asm/oplib.h>
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index bb9ec2cce35..b049abf9902 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -770,6 +770,8 @@ extern void sun4v_patch_tlb_handlers(void);
 
 extern unsigned long cmdline_memory_size;
 
+extern asmlinkage void do_sparc64_fault(struct pt_regs *regs);
+
 #endif /* !(__ASSEMBLY__) */
 
 #endif /* !(_SPARC64_PGTABLE_H) */
diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h
index fd55522481c..900d44714f8 100644
--- a/arch/sparc/include/asm/prom.h
+++ b/arch/sparc/include/asm/prom.h
@@ -18,6 +18,7 @@
  */
 #include <linux/types.h>
 #include <linux/proc_fs.h>
+#include <linux/mutex.h>
 #include <asm/atomic.h>
 
 #define OF_ROOT_NODE_ADDR_CELLS_DEFAULT 2
@@ -73,6 +74,7 @@ struct of_irq_controller {
 
 extern struct device_node *of_find_node_by_cpuid(int cpuid);
 extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
+extern struct mutex of_set_property_mutex;
 extern int of_getintprop_default(struct device_node *np,
                                  const char *name,
                                  int def);
@@ -94,6 +96,16 @@ static inline void of_node_put(struct device_node *node)
 {
 }
 
+/* These routines are here to provide compatibility with how powerpc
+ * handles IRQ mapping for OF device nodes.  We precompute and permanently
+ * register them in the of_device objects, whereas powerpc computes them
+ * on request.
+ */
+extern unsigned int irq_of_parse_and_map(struct device_node *node, int index);
+static inline void irq_dispose_mapping(unsigned int virq)
+{
+}
+
 /*
  * NB:  This is here while we transition from using asm/prom.h
  * to linux/of.h
diff --git a/arch/sparc/include/asm/ptrace_64.h b/arch/sparc/include/asm/ptrace_64.h
index 06e4914c13f..3d3e9c161d8 100644
--- a/arch/sparc/include/asm/ptrace_64.h
+++ b/arch/sparc/include/asm/ptrace_64.h
@@ -113,6 +113,8 @@ struct sparc_trapf {
 
 #ifdef __KERNEL__
 
+#include <linux/threads.h>
+
 static inline int pt_regs_trap_type(struct pt_regs *regs)
 {
         return regs->magic & 0x1ff;
@@ -138,6 +140,7 @@ struct global_reg_snapshot {
         struct thread_info      *thread;
         unsigned long           pad1;
 };
+extern struct global_reg_snapshot global_reg_snapshot[NR_CPUS];
 
 #define __ARCH_WANT_COMPAT_SYS_PTRACE
 
diff --git a/arch/sparc/include/asm/reboot.h b/arch/sparc/include/asm/reboot.h
deleted file mode 100644
index 3f3f43f5be5..00000000000
--- a/arch/sparc/include/asm/reboot.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _SPARC64_REBOOT_H
-#define _SPARC64_REBOOT_H
-
-extern void machine_alt_power_off(void);
-
-#endif /* _SPARC64_REBOOT_H */
diff --git a/arch/sparc/include/asm/rtc.h b/arch/sparc/include/asm/rtc.h
deleted file mode 100644
index f9ecb1fe2ec..00000000000
--- a/arch/sparc/include/asm/rtc.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * rtc.h: Definitions for access to the Mostek real time clock
- *
- * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu)
- */
-
-#ifndef _RTC_H
-#define _RTC_H
-
-#include <linux/ioctl.h>
-
-struct rtc_time
-{
-        int     sec;    /* Seconds (0-59) */
-        int     min;    /* Minutes (0-59) */
-        int     hour;   /* Hour (0-23) */
-        int     dow;    /* Day of the week (1-7) */
-        int     dom;    /* Day of the month (1-31) */
-        int     month;  /* Month of year (1-12) */
-        int     year;   /* Year (0-99) */
-};
-
-#define RTCGET _IOR('p', 20, struct rtc_time)
-#define RTCSET _IOW('p', 21, struct rtc_time)
-
-#endif
diff --git a/arch/sparc/include/asm/sbus.h b/arch/sparc/include/asm/sbus.h
deleted file mode 100644
index f82481ab44d..00000000000
--- a/arch/sparc/include/asm/sbus.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef ___ASM_SPARC_SBUS_H
-#define ___ASM_SPARC_SBUS_H
-#if defined(__sparc__) && defined(__arch64__)
-#include <asm/sbus_64.h>
-#else
-#include <asm/sbus_32.h>
-#endif
-#endif
diff --git a/arch/sparc/include/asm/sbus_32.h b/arch/sparc/include/asm/sbus_32.h
deleted file mode 100644
index a7b4fa21931..00000000000
--- a/arch/sparc/include/asm/sbus_32.h
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * sbus.h:  Defines for the Sun SBus.
- *
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- */
-
-#ifndef _SPARC_SBUS_H
-#define _SPARC_SBUS_H
-
-#include <linux/dma-mapping.h>
-#include <linux/ioport.h>
-#include <linux/of_device.h>
-
-#include <asm/oplib.h>
-#include <asm/prom.h>
-#include <asm/scatterlist.h>
-
-/* We scan which devices are on the SBus using the PROM node device
- * tree.  SBus devices are described in two different ways.  You can
- * either get an absolute address at which to access the device, or
- * you can get a SBus 'slot' number and an offset within that slot.
- */
-
-/* The base address at which to calculate device OBIO addresses. */
-#define SUN_SBUS_BVADDR        0xf8000000
-#define SBUS_OFF_MASK          0x01ffffff
-
-/* These routines are used to calculate device address from slot
- * numbers + offsets, and vice versa.
- */
-
-static inline unsigned long sbus_devaddr(int slotnum, unsigned long offset)
-{
-  return (unsigned long) (SUN_SBUS_BVADDR+((slotnum)<<25)+(offset));
-}
-
-static inline int sbus_dev_slot(unsigned long dev_addr)
-{
-  return (int) (((dev_addr)-SUN_SBUS_BVADDR)>>25);
-}
-
-struct sbus_bus;
-
-/* Linux SBUS device tables */
-struct sbus_dev {
-        struct of_device        ofdev;
-        struct sbus_bus         *bus;
-        struct sbus_dev         *next;
-        struct sbus_dev         *child;
-        struct sbus_dev         *parent;
-        int prom_node;
-        char prom_name[64];
-        int slot;
-
-        struct resource resource[PROMREG_MAX];
-
-        struct linux_prom_registers reg_addrs[PROMREG_MAX];
-        int num_registers;
-
-        struct linux_prom_ranges device_ranges[PROMREG_MAX];
-        int num_device_ranges;
-
-        unsigned int irqs[4];
-        int num_irqs;
-};
-#define to_sbus_device(d) container_of(d, struct sbus_dev, ofdev.dev)
-
-/* This struct describes the SBus(s) found on this machine. */
-struct sbus_bus {
-        struct of_device        ofdev;
-        struct sbus_dev         *devices;       /* Link to devices on this SBus */
-        struct sbus_bus         *next;          /* next SBus, if more than one SBus */
-        int                     prom_node;      /* PROM device tree node for this SBus */
-        char                    prom_name[64];  /* Usually "sbus" or "sbi" */
-        int                     clock_freq;
-
-        struct linux_prom_ranges sbus_ranges[PROMREG_MAX];
-        int num_sbus_ranges;
-
-        int devid;
-        int board;
-};
-#define to_sbus(d) container_of(d, struct sbus_bus, ofdev.dev)
-
-extern struct sbus_bus *sbus_root;
-
-static inline int
-sbus_is_slave(struct sbus_dev *dev)
-{
-        /* XXX Have to write this for sun4c's */
-        return 0;
-}
-
-/* Device probing routines could find these handy */
-#define for_each_sbus(bus) \
-        for((bus) = sbus_root; (bus); (bus)=(bus)->next)
-
-#define for_each_sbusdev(device, bus) \
-        for((device) = (bus)->devices; (device); (device)=(device)->next)
-
-#define for_all_sbusdev(device, bus) \
-        for ((bus) = sbus_root; (bus); (bus) = (bus)->next) \
-                for ((device) = (bus)->devices; (device); (device) = (device)->next)
-
-/* Driver DVMA interfaces. */
-#define sbus_can_dma_64bit(sdev)        (0) /* actually, sparc_cpu_model==sun4d */
-#define sbus_can_burst64(sdev)          (0) /* actually, sparc_cpu_model==sun4d */
-extern void sbus_set_sbus64(struct sbus_dev *, int);
-extern void sbus_fill_device_irq(struct sbus_dev *);
-
-/* These yield IOMMU mappings in consistent mode. */
-extern void *sbus_alloc_consistent(struct sbus_dev *, long, u32 *dma_addrp);
-extern void sbus_free_consistent(struct sbus_dev *, long, void *, u32);
-void prom_adjust_ranges(struct linux_prom_ranges *, int,
-                        struct linux_prom_ranges *, int);
-
-#define SBUS_DMA_BIDIRECTIONAL  DMA_BIDIRECTIONAL
-#define SBUS_DMA_TODEVICE       DMA_TO_DEVICE
-#define SBUS_DMA_FROMDEVICE     DMA_FROM_DEVICE
-#define SBUS_DMA_NONE           DMA_NONE
-
-/* All the rest use streaming mode mappings. */
-extern dma_addr_t sbus_map_single(struct sbus_dev *, void *, size_t, int);
-extern void sbus_unmap_single(struct sbus_dev *, dma_addr_t, size_t, int);
-extern int sbus_map_sg(struct sbus_dev *, struct scatterlist *, int, int);
-extern void sbus_unmap_sg(struct sbus_dev *, struct scatterlist *, int, int);
-
-/* Finally, allow explicit synchronization of streamable mappings. */
-extern void sbus_dma_sync_single_for_cpu(struct sbus_dev *, dma_addr_t, size_t, int);
-#define sbus_dma_sync_single sbus_dma_sync_single_for_cpu
-extern void sbus_dma_sync_single_for_device(struct sbus_dev *, dma_addr_t, size_t, int);
-extern void sbus_dma_sync_sg_for_cpu(struct sbus_dev *, struct scatterlist *, int, int);
-#define sbus_dma_sync_sg sbus_dma_sync_sg_for_cpu
-extern void sbus_dma_sync_sg_for_device(struct sbus_dev *, struct scatterlist *, int, int);
-
-/* Eric Brower (ebrower@usa.net)
- * Translate SBus interrupt levels to ino values--
- * this is used when converting sbus "interrupts" OBP
- * node values to "intr" node values, and is platform
- * dependent.  If only we could call OBP with
- * "sbus-intr>cpu (sbint -- ino)" from kernel...
- * See .../drivers/sbus/sbus.c for details.
- */
-BTFIXUPDEF_CALL(unsigned int, sbint_to_irq, struct sbus_dev *sdev, unsigned int)
-#define sbint_to_irq(sdev, sbint) BTFIXUP_CALL(sbint_to_irq)(sdev, sbint)
-
-extern void sbus_arch_bus_ranges_init(struct device_node *, struct sbus_bus *);
-extern void sbus_setup_iommu(struct sbus_bus *, struct device_node *);
-extern void sbus_setup_arch_props(struct sbus_bus *, struct device_node *);
-extern int sbus_arch_preinit(void);
-extern void sbus_arch_postinit(void);
-
-#endif /* !(_SPARC_SBUS_H) */
diff --git a/arch/sparc/include/asm/sbus_64.h b/arch/sparc/include/asm/sbus_64.h
deleted file mode 100644
index b606c14343f..00000000000
--- a/arch/sparc/include/asm/sbus_64.h
+++ /dev/null
@@ -1,190 +0,0 @@
-/* sbus.h: Defines for the Sun SBus.
- *
- * Copyright (C) 1996, 1999, 2007 David S. Miller (davem@davemloft.net)
- */
-
-#ifndef _SPARC64_SBUS_H
-#define _SPARC64_SBUS_H
-
-#include <linux/dma-mapping.h>
-#include <linux/ioport.h>
-#include <linux/of_device.h>
-
-#include <asm/oplib.h>
-#include <asm/prom.h>
-#include <asm/iommu.h>
-#include <asm/scatterlist.h>
-
-/* We scan which devices are on the SBus using the PROM node device
- * tree.  SBus devices are described in two different ways.  You can
- * either get an absolute address at which to access the device, or
- * you can get a SBus 'slot' number and an offset within that slot.
- */
-
-/* The base address at which to calculate device OBIO addresses. */
-#define SUN_SBUS_BVADDR        0x00000000
-#define SBUS_OFF_MASK          0x0fffffff
-
-/* These routines are used to calculate device address from slot
- * numbers + offsets, and vice versa.
- */
-
-static inline unsigned long sbus_devaddr(int slotnum, unsigned long offset)
-{
-  return (unsigned long) (SUN_SBUS_BVADDR+((slotnum)<<28)+(offset));
-}
-
-static inline int sbus_dev_slot(unsigned long dev_addr)
-{
-  return (int) (((dev_addr)-SUN_SBUS_BVADDR)>>28);
-}
-
-struct sbus_bus;
-
-/* Linux SBUS device tables */
-struct sbus_dev {
-        struct of_device        ofdev;
-        struct sbus_bus         *bus;
-        struct sbus_dev         *next;
-        struct sbus_dev         *child;
-        struct sbus_dev         *parent;
-        int prom_node;
-        char prom_name[64];
-        int slot;
-
-        struct resource resource[PROMREG_MAX];
-
-        struct linux_prom_registers reg_addrs[PROMREG_MAX];
-        int num_registers;
-
-        struct linux_prom_ranges device_ranges[PROMREG_MAX];
-        int num_device_ranges;
-
-        unsigned int irqs[4];
-        int num_irqs;
-};
-#define to_sbus_device(d) container_of(d, struct sbus_dev, ofdev.dev)
-
-/* This struct describes the SBus(s) found on this machine. */
-struct sbus_bus {
-        struct of_device        ofdev;
-        struct sbus_dev         *devices;       /* Tree of SBUS devices */
-        struct sbus_bus         *next;          /* Next SBUS in system  */
-        int                     prom_node;      /* OBP node of SBUS     */
-        char                    prom_name[64];  /* Usually "sbus" or "sbi" */
-        int                     clock_freq;
-
-        struct linux_prom_ranges sbus_ranges[PROMREG_MAX];
-        int num_sbus_ranges;
-
-        int portid;
-};
-#define to_sbus(d) container_of(d, struct sbus_bus, ofdev.dev)
-
-extern struct sbus_bus *sbus_root;
-
-/* Device probing routines could find these handy */
-#define for_each_sbus(bus) \
-        for((bus) = sbus_root; (bus); (bus)=(bus)->next)
-
-#define for_each_sbusdev(device, bus) \
-        for((device) = (bus)->devices; (device); (device)=(device)->next)
-
-#define for_all_sbusdev(device, bus) \
-        for ((bus) = sbus_root; (bus); (bus) = (bus)->next) \
-                for ((device) = (bus)->devices; (device); (device) = (device)->next)
-
-/* Driver DVMA interfaces. */
-#define sbus_can_dma_64bit(sdev)        (1)
-#define sbus_can_burst64(sdev)          (1)
-extern void sbus_set_sbus64(struct sbus_dev *, int);
-extern void sbus_fill_device_irq(struct sbus_dev *);
-
-static inline void *sbus_alloc_consistent(struct sbus_dev *sdev , size_t size,
-                                          dma_addr_t *dma_handle)
-{
-        return dma_alloc_coherent(&sdev->ofdev.dev, size,
-                                  dma_handle, GFP_ATOMIC);
-}
-
-static inline void sbus_free_consistent(struct sbus_dev *sdev, size_t size,
-                                        void *vaddr, dma_addr_t dma_handle)
-{
-        return dma_free_coherent(&sdev->ofdev.dev, size, vaddr, dma_handle);
-}
-
-#define SBUS_DMA_BIDIRECTIONAL  DMA_BIDIRECTIONAL
-#define SBUS_DMA_TODEVICE       DMA_TO_DEVICE
-#define SBUS_DMA_FROMDEVICE     DMA_FROM_DEVICE
-#define SBUS_DMA_NONE           DMA_NONE
-
-/* All the rest use streaming mode mappings. */
-static inline dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *ptr,
-                                         size_t size, int direction)
-{
-        return dma_map_single(&sdev->ofdev.dev, ptr, size,
-                              (enum dma_data_direction) direction);
-}
-
-static inline void sbus_unmap_single(struct sbus_dev *sdev,
-                                     dma_addr_t dma_addr, size_t size,
-                                     int direction)
-{
-        dma_unmap_single(&sdev->ofdev.dev, dma_addr, size,
-                         (enum dma_data_direction) direction);
-}
-
-static inline int sbus_map_sg(struct sbus_dev *sdev, struct scatterlist *sg,
-                              int nents, int direction)
-{
-        return dma_map_sg(&sdev->ofdev.dev, sg, nents,
-                          (enum dma_data_direction) direction);
-}
-
-static inline void sbus_unmap_sg(struct sbus_dev *sdev, struct scatterlist *sg,
-                                 int nents, int direction)
-{
-        dma_unmap_sg(&sdev->ofdev.dev, sg, nents,
-                     (enum dma_data_direction) direction);
-}
-
-/* Finally, allow explicit synchronization of streamable mappings. */
-static inline void sbus_dma_sync_single_for_cpu(struct sbus_dev *sdev,
-                                                dma_addr_t dma_handle,
-                                                size_t size, int direction)
-{
-        dma_sync_single_for_cpu(&sdev->ofdev.dev, dma_handle, size,
-                                (enum dma_data_direction) direction);
-}
-#define sbus_dma_sync_single sbus_dma_sync_single_for_cpu
-
-static inline void sbus_dma_sync_single_for_device(struct sbus_dev *sdev,
-                                                   dma_addr_t dma_handle,
-                                                   size_t size, int direction)
-{
-        /* No flushing needed to sync cpu writes to the device.  */
-}
-
-static inline void sbus_dma_sync_sg_for_cpu(struct sbus_dev *sdev,
-                                            struct scatterlist *sg,
-                                            int nents, int direction)
-{
-        dma_sync_sg_for_cpu(&sdev->ofdev.dev, sg, nents,
-                            (enum dma_data_direction) direction);
-}
-#define sbus_dma_sync_sg sbus_dma_sync_sg_for_cpu
-
-static inline void sbus_dma_sync_sg_for_device(struct sbus_dev *sdev,
-                                               struct scatterlist *sg,
-                                               int nents, int direction)
-{
-        /* No flushing needed to sync cpu writes to the device.  */
-}
-
-extern void sbus_arch_bus_ranges_init(struct device_node *, struct sbus_bus *);
-extern void sbus_setup_iommu(struct sbus_bus *, struct device_node *);
-extern void sbus_setup_arch_props(struct sbus_bus *, struct device_node *);
-extern int sbus_arch_preinit(void);
-extern void sbus_arch_postinit(void);
-
-#endif /* !(_SPARC64_SBUS_H) */
diff --git a/arch/sparc/include/asm/spinlock_32.h b/arch/sparc/include/asm/spinlock_32.h
index de2249b267c..bf2d532593e 100644
--- a/arch/sparc/include/asm/spinlock_32.h
+++ b/arch/sparc/include/asm/spinlock_32.h
@@ -6,8 +6,6 @@
 #ifndef __SPARC_SPINLOCK_H
 #define __SPARC_SPINLOCK_H
 
-#include <linux/threads.h>      /* For NR_CPUS */
-
 #ifndef __ASSEMBLY__
 
 #include <asm/psr.h>
diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
index 0006fe9f8c7..120cfe4577c 100644
--- a/arch/sparc/include/asm/spinlock_64.h
+++ b/arch/sparc/include/asm/spinlock_64.h
@@ -6,8 +6,6 @@
 #ifndef __SPARC64_SPINLOCK_H
 #define __SPARC64_SPINLOCK_H
 
-#include <linux/threads.h>      /* For NR_CPUS */
-
 #ifndef __ASSEMBLY__
 
 /* To get debugging spinlocks which detect and catch
diff --git a/arch/sparc/include/asm/sstate.h b/arch/sparc/include/asm/sstate.h
deleted file mode 100644
index a7c35dbcb28..00000000000
--- a/arch/sparc/include/asm/sstate.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef _SPARC64_SSTATE_H
-#define _SPARC64_SSTATE_H
-
-extern void sstate_booting(void);
-extern void sstate_running(void);
-extern void sstate_halt(void);
-extern void sstate_poweroff(void);
-extern void sstate_panic(void);
-extern void sstate_reboot(void);
-
-extern void sun4v_sstate_init(void);
-
-#endif /* _SPARC64_SSTATE_H */
diff --git a/arch/sparc/include/asm/starfire.h b/arch/sparc/include/asm/starfire.h
index 07bafd31e33..d56ce60a599 100644
--- a/arch/sparc/include/asm/starfire.h
+++ b/arch/sparc/include/asm/starfire.h
@@ -12,7 +12,6 @@
 extern int this_is_starfire;
 
 extern void check_if_starfire(void);
-extern void starfire_cpu_setup(void);
 extern int starfire_hard_smp_processor_id(void);
 extern void starfire_hookup(int);
 extern unsigned int starfire_translate(unsigned long imap, unsigned int upaid);
diff --git a/arch/sparc/include/asm/sun4paddr.h b/arch/sparc/include/asm/sun4paddr.h
deleted file mode 100644
index d52985f19f4..00000000000
--- a/arch/sparc/include/asm/sun4paddr.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * sun4paddr.h:  Various physical addresses on sun4 machines
- *
- * Copyright (C) 1997 Anton Blanchard (anton@progsoc.uts.edu.au)
- * Copyright (C) 1998 Chris Davis (cdavis@cois.on.ca)
- * 
- * Now supports more sun4's
- */
-
-#ifndef _SPARC_SUN4PADDR_H
-#define _SPARC_SUN4PADDR_H
-
-#define SUN4_IE_PHYSADDR                0xf5000000
-#define SUN4_UNUSED_PHYSADDR            0
-
-/* these work for me */
-#define SUN4_200_MEMREG_PHYSADDR        0xf4000000
-#define SUN4_200_CLOCK_PHYSADDR         0xf3000000
-#define SUN4_200_BWTWO_PHYSADDR         0xfd000000
-#define SUN4_200_ETH_PHYSADDR           0xf6000000
-#define SUN4_200_SI_PHYSADDR            0xff200000
-
-/* these were here before */
-#define SUN4_300_MEMREG_PHYSADDR        0xf4000000
-#define SUN4_300_CLOCK_PHYSADDR         0xf2000000
-#define SUN4_300_TIMER_PHYSADDR         0xef000000
-#define SUN4_300_ETH_PHYSADDR           0xf9000000
-#define SUN4_300_BWTWO_PHYSADDR         0xfb400000
-#define SUN4_300_DMA_PHYSADDR           0xfa001000
-#define SUN4_300_ESP_PHYSADDR           0xfa000000
-
-/* Are these right? */
-#define SUN4_400_MEMREG_PHYSADDR        0xf4000000
-#define SUN4_400_CLOCK_PHYSADDR         0xf2000000
-#define SUN4_400_TIMER_PHYSADDR         0xef000000
-#define SUN4_400_ETH_PHYSADDR           0xf9000000
-#define SUN4_400_BWTWO_PHYSADDR         0xfb400000
-#define SUN4_400_DMA_PHYSADDR           0xfa001000
-#define SUN4_400_ESP_PHYSADDR           0xfa000000
-
-/* 
-        these are the actual values set and used in the code. Unused items set 
-        to SUN_UNUSED_PHYSADDR 
- */
-
-extern int sun4_memreg_physaddr; /* memory register (ecc?) */
-extern int sun4_clock_physaddr;  /* system clock */
-extern int sun4_timer_physaddr;  /* timer, where applicable */
-extern int sun4_eth_physaddr;    /* onboard ethernet (ie/le) */
-extern int sun4_si_physaddr;     /* sun3 scsi adapter */
-extern int sun4_bwtwo_physaddr;  /* onboard bw2 */
-extern int sun4_dma_physaddr;    /* scsi dma */
-extern int sun4_esp_physaddr;    /* esp scsi */
-extern int sun4_ie_physaddr;     /* interrupt enable */
-
-#endif /* !(_SPARC_SUN4PADDR_H) */
diff --git a/arch/sparc/include/asm/sun4prom.h b/arch/sparc/include/asm/sun4prom.h
deleted file mode 100644
index 9c8b4cbf629..00000000000
--- a/arch/sparc/include/asm/sun4prom.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * sun4prom.h -- interface to sun4 PROM monitor.  We don't use most of this,
- *               so most of these are just placeholders.
- */
-
-#ifndef _SUN4PROM_H_
-#define _SUN4PROM_H_
-
-/*
- * Although this looks similar to an romvec for a OpenProm machine, it is 
- * actually closer to what was used in the Sun2 and Sun3.
- *
- * V2 entries exist only in version 2 PROMs and later, V3 in version 3 and later.
- * 
- * Many of the function prototypes are guesses.  Some are certainly wrong.
- * Use with care.
- */
-
-typedef struct {
-        char            *initSP;                /* Initial system stack ptr */
-        void            (*startmon)(void);      /* Initial PC for hardware */
-        int             *diagberr;              /* Bus err handler for diags */
-        struct linux_arguments_v0 **bootParam; /* Info for bootstrapped pgm */
-        unsigned int    *memorysize;            /* Usable memory in bytes */
-        unsigned char   (*getchar)(void);       /* Get char from input device */ 
-        void            (*putchar)(char);       /* Put char to output device */
-        int             (*mayget)(void);        /* Maybe get char, or -1 */
-        int             (*mayput)(int);         /* Maybe put char, or -1 */
-        unsigned char   *echo;                  /* Should getchar echo? */
-        unsigned char   *insource;              /* Input source selector */
-        unsigned char   *outsink;               /* Output sink selector */
-        int             (*getkey)(void);        /* Get next key if one exists */
-        void            (*initgetkey)(void);    /* Initialize get key */
-        unsigned int    *translation;           /* Kbd translation selector */
-        unsigned char   *keybid;                /* Keyboard ID byte */
-        int             *screen_x;              /* V2: Screen x pos (r/o) */
-        int             *screen_y;              /* V2: Screen y pos (r/o) */
-        struct keybuf   *keybuf;                /* Up/down keycode buffer */
-        char            *monid;                 /* Monitor version ID */
-        void            (*fbwritechar)(char);   /* Write a character to FB */
-        int             *fbAddr;                /* Address of frame buffer */
-        char            **font;                 /* Font table for FB */
-        void            (*fbwritestr)(char *);  /* Write string to FB */
-        void            (*reboot)(char *);      /* e.g. reboot("sd()vmlinux") */
-        unsigned char   *linebuf;               /* The line input buffer */
-        unsigned char   **lineptr;              /* Cur pointer into linebuf */
-        int             *linesize;              /* length of line in linebuf */
-        void            (*getline)(char *);     /* Get line from user */
-        unsigned char   (*getnextchar)(void);   /* Get next char from linebuf */
-        unsigned char   (*peeknextchar)(void);  /* Peek at next char */
-        int             *fbthere;               /* =1 if frame buffer there */
-        int             (*getnum)(void);        /* Grab hex num from line */
-        int             (*printf)(char *, ...); /* See prom_printf() instead */ 
-        void            (*printhex)(int);       /* Format N digits in hex */
-        unsigned char   *leds;                  /* RAM copy of LED register */
-        void            (*setLEDs)(unsigned char *);    /* Sets LED's and RAM copy */
-        void            (*NMIaddr)(void *);     /* Addr for level 7 vector */
-        void            (*abortentry)(void);    /* Entry for keyboard abort */
-        int             *nmiclock;              /* Counts up in msec */
-        int             *FBtype;                /* Frame buffer type */
-        unsigned int    romvecversion;          /* Version number for this romvec */
-        struct globram  *globram;               /* monitor global variables ??? */
-        void *          kbdaddr;                /* Addr of keyboard in use */
-        int             *keyrinit;              /* ms before kbd repeat */
-        unsigned char   *keyrtick;              /* ms between repetitions */
-        unsigned int    *memoryavail;           /* V1: Main mem usable size */
-        long            *resetaddr;             /* where to jump on a reset */
-        long            *resetmap;              /* pgmap entry for resetaddr */
-        void            (*exittomon)(void);     /* Exit from user program */
-        unsigned char   **memorybitmap;         /* V1: &{0 or &bits} */
-        void            (*setcxsegmap)(int ctxt, char *va, int pmeg);   /* Set seg in any context */
-        void            (**vector_cmd)(void *); /* V2: Handler for 'v' cmd */
-        unsigned long   *expectedtrapsig;       /* V3: Location of the expected trap signal */
-        unsigned long   *trapvectorbasetable;   /* V3: Address of the trap vector table */
-        int             unused1;
-        int             unused2;
-        int             unused3;
-        int             unused4;
-} linux_sun4_romvec;
-
-extern linux_sun4_romvec *sun4_romvec;
-
-#endif /* _SUN4PROM_H_ */
diff --git a/arch/sparc/include/asm/system_32.h b/arch/sparc/include/asm/system_32.h
index b4b024445fc..8623fc48fe2 100644
--- a/arch/sparc/include/asm/system_32.h
+++ b/arch/sparc/include/asm/system_32.h
@@ -34,13 +34,7 @@ enum sparc_cpu {
 
 extern enum sparc_cpu sparc_cpu_model;
 
-#ifndef CONFIG_SUN4
-#define ARCH_SUN4C_SUN4 (sparc_cpu_model==sun4c)
-#define ARCH_SUN4 0
-#else
-#define ARCH_SUN4C_SUN4 1
-#define ARCH_SUN4 1
-#endif
+#define ARCH_SUN4C (sparc_cpu_model==sun4c)
 
 #define SUN4M_NCPUS            4              /* Architectural limit of sun4m. */
 
@@ -55,6 +49,7 @@ extern unsigned long empty_zero_page;
 extern void sun_do_break(void);
 extern int serial_console;
 extern int stop_a_enabled;
+extern int scons_pwroff;
 
 static inline int con_is_present(void)
 {
diff --git a/arch/sparc/include/asm/system_64.h b/arch/sparc/include/asm/system_64.h
index db9e742a406..8759f2a1b83 100644
--- a/arch/sparc/include/asm/system_64.h
+++ b/arch/sparc/include/asm/system_64.h
@@ -26,9 +26,8 @@ enum sparc_cpu {
 
 #define sparc_cpu_model sun4u
 
-/* This cannot ever be a sun4c nor sun4 :) That's just history. */
-#define ARCH_SUN4C_SUN4 0
-#define ARCH_SUN4 0
+/* This cannot ever be a sun4c :) That's just history. */
+#define ARCH_SUN4C 0
 
 extern char reboot_command[];
 
@@ -118,6 +117,7 @@ do {	__asm__ __volatile__("ba,pt	%%xcc, 1f\n\t" \
 
 extern void sun_do_break(void);
 extern int stop_a_enabled;
+extern int scons_pwroff;
 
 extern void fault_in_user_windows(void);
 extern void synchronize_user_stack(void);
diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
index cbb892d0dff..29899fd5b1b 100644
--- a/arch/sparc/include/asm/thread_info_32.h
+++ b/arch/sparc/include/asm/thread_info_32.h
@@ -80,11 +80,7 @@ register struct thread_info *current_thread_info_reg asm("g6");
 /*
  * thread information allocation
  */
-#if PAGE_SHIFT == 13
-#define THREAD_INFO_ORDER  0
-#else /* PAGE_SHIFT */
 #define THREAD_INFO_ORDER  1
-#endif
 
 #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
 
diff --git a/arch/sparc/include/asm/timer_32.h b/arch/sparc/include/asm/timer_32.h
index 361e53898dd..2ec030ef381 100644
--- a/arch/sparc/include/asm/timer_32.h
+++ b/arch/sparc/include/asm/timer_32.h
@@ -9,96 +9,9 @@
 #define _SPARC_TIMER_H
 
 #include <asm/system.h>  /* For SUN4M_NCPUS */
-#include <asm/sun4paddr.h>
 #include <asm/btfixup.h>
 
-/* Timer structures. The interrupt timer has two properties which
- * are the counter (which is handled in do_timer in sched.c) and the limit.
- * This limit is where the timer's counter 'wraps' around. Oddly enough,
- * the sun4c timer when it hits the limit wraps back to 1 and not zero
- * thus when calculating the value at which it will fire a microsecond you
- * must adjust by one.  Thanks SUN for designing such great hardware ;(
- */
-
-/* Note that I am only going to use the timer that interrupts at
- * Sparc IRQ 10.  There is another one available that can fire at
- * IRQ 14. Currently it is left untouched, we keep the PROM's limit
- * register value and let the prom take these interrupts.  This allows
- * L1-A to work.
- */
-
-struct sun4c_timer_info {
-  __volatile__ unsigned int cur_count10;
-  __volatile__ unsigned int timer_limit10;
-  __volatile__ unsigned int cur_count14;
-  __volatile__ unsigned int timer_limit14;
-};
-
-#define SUN4C_TIMER_PHYSADDR   0xf3000000
-#ifdef CONFIG_SUN4
-#define SUN_TIMER_PHYSADDR SUN4_300_TIMER_PHYSADDR
-#else
-#define SUN_TIMER_PHYSADDR SUN4C_TIMER_PHYSADDR
-#endif
-
-/* A sun4m has two blocks of registers which are probably of the same
- * structure. LSI Logic's L64851 is told to _decrement_ from the limit
- * value. Aurora behaves similarly but its limit value is compacted in
- * other fashion (it's wider). Documented fields are defined here.
- */
-
-/* As with the interrupt register, we have two classes of timer registers
- * which are per-cpu and master.  Per-cpu timers only hit that cpu and are
- * only level 14 ticks, master timer hits all cpus and is level 10.
- */
-
-#define SUN4M_PRM_CNT_L       0x80000000
-#define SUN4M_PRM_CNT_LVALUE  0x7FFFFC00
-
-struct sun4m_timer_percpu_info {
-  __volatile__ unsigned int l14_timer_limit;    /* Initial value is 0x009c4000 */
-  __volatile__ unsigned int l14_cur_count;
-
-  /* This register appears to be write only and/or inaccessible
-   * on Uni-Processor sun4m machines.
-   */
-  __volatile__ unsigned int l14_limit_noclear;  /* Data access error is here */
-
-  __volatile__ unsigned int cntrl;            /* =1 after POST on Aurora */
-  __volatile__ unsigned char space[PAGE_SIZE - 16];
-};
-
-struct sun4m_timer_regs {
-        struct sun4m_timer_percpu_info cpu_timers[SUN4M_NCPUS];
-        volatile unsigned int l10_timer_limit;
-        volatile unsigned int l10_cur_count;
-
-        /* Again, this appears to be write only and/or inaccessible
-         * on uni-processor sun4m machines.
-         */
-        volatile unsigned int l10_limit_noclear;
-
-        /* This register too, it must be magic. */
-        volatile unsigned int foobar;
-
-        volatile unsigned int cfg;     /* equals zero at boot time... */
-};
-
-#define SUN4D_PRM_CNT_L       0x80000000
-#define SUN4D_PRM_CNT_LVALUE  0x7FFFFC00
-
-struct sun4d_timer_regs {
-        volatile unsigned int l10_timer_limit;
-        volatile unsigned int l10_cur_countx;
-        volatile unsigned int l10_limit_noclear;
-        volatile unsigned int ctrl;
-        volatile unsigned int l10_cur_count;
-};
-
-extern struct sun4d_timer_regs *sun4d_timers;
-
 extern __volatile__ unsigned int *master_l10_counter;
-extern __volatile__ unsigned int *master_l10_limit;
 
 /* FIXME: Make do_[gs]ettimeofday btfixup calls */
 BTFIXUPDEF_CALL(int, bus_do_settimeofday, struct timespec *tv)
diff --git a/arch/sparc/include/asm/vac-ops.h b/arch/sparc/include/asm/vac-ops.h
index d10527611f1..a63e88ef042 100644
--- a/arch/sparc/include/asm/vac-ops.h
+++ b/arch/sparc/include/asm/vac-ops.h
@@ -76,11 +76,7 @@
  * cacheable bit in the pte's of all such pages.
  */
 
-#ifdef CONFIG_SUN4
-#define S4CVAC_BADBITS     0x0001e000
-#else
 #define S4CVAC_BADBITS    0x0000f000
-#endif
 
 /* The following is true if vaddr1 and vaddr2 would cause
  * a 'bad alias'.
@@ -94,10 +90,7 @@
  */
 struct sun4c_vac_props {
         unsigned int num_bytes;     /* Size of the cache */
-        unsigned int num_lines;     /* Number of cache lines */
         unsigned int do_hwflushes;  /* Hardware flushing available? */
-        enum { VAC_NONE, VAC_WRITE_THROUGH,
-            VAC_WRITE_BACK } type;  /* What type of VAC? */
         unsigned int linesize;      /* Size of each line in bytes */
         unsigned int log2lsize;     /* log2(linesize) */
         unsigned int on;            /* VAC is enabled */
diff --git a/arch/sparc/include/asm/vfc_ioctls.h b/arch/sparc/include/asm/vfc_ioctls.h
deleted file mode 100644
index af8b69007b2..00000000000
--- a/arch/sparc/include/asm/vfc_ioctls.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/* Copyright (c) 1996 by Manish Vachharajani */
-
-#ifndef _LINUX_VFC_IOCTLS_H_
-#define _LINUX_VFC_IOCTLS_H_
-
-        /* IOCTLs */
-#define VFC_IOCTL(a)          (('j' << 8) | a)
-#define VFCGCTRL        (VFC_IOCTL (0))         /* get vfc attributes */
-#define VFCSCTRL        (VFC_IOCTL (1))         /* set vfc attributes */
-#define VFCGVID         (VFC_IOCTL (2))         /* get video decoder attributes */
-#define VFCSVID         (VFC_IOCTL (3))         /* set video decoder attributes */
-#define VFCHUE          (VFC_IOCTL (4))         /* set hue */
-#define VFCPORTCHG      (VFC_IOCTL (5))         /* change port */
-#define VFCRDINFO       (VFC_IOCTL (6))         /* read info */
-
-        /* Options for setting the vfc attributes and status */
-#define MEMPRST         0x1     /* reset FIFO ptr. */
-#define CAPTRCMD        0x2     /* start capture and wait */
-#define DIAGMODE        0x3     /* diag mode */
-#define NORMMODE        0x4     /* normal mode */
-#define CAPTRSTR        0x5     /* start capture */
-#define CAPTRWAIT       0x6     /* wait for capture to finish */
-
-
-        /* Options for the decoder */
-#define STD_NTSC        0x1     /* NTSC mode */
-#define STD_PAL         0x2     /* PAL mode */
-#define COLOR_ON        0x3     /* force color ON */
-#define MONO            0x4     /* force color OFF */
-
-        /* Values returned by ioctl 2 */
-
-#define NO_LOCK         1
-#define NTSC_COLOR      2
-#define NTSC_NOCOLOR    3
-#define PAL_COLOR       4
-#define PAL_NOCOLOR     5
-
-/* Not too sure what this does yet */
-        /* Options for setting Field number */
-#define ODD_FIELD       0x1
-#define EVEN_FIELD      0x0
-#define ACTIVE_ONLY     0x2
-#define NON_ACTIVE      0x0
-
-/* Debug options */
-#define VFC_I2C_SEND 0
-#define VFC_I2C_RECV 1
-
-struct vfc_debug_inout
-{
-        unsigned long addr;
-        unsigned long ret;
-        unsigned long len;
-        unsigned char __user *buffer;
-};
-
-#endif /* _LINUX_VFC_IOCTLS_H_ */
diff --git a/arch/sparc/include/asm/visasm.h b/arch/sparc/include/asm/visasm.h
index de797b9bf55..39ca301920d 100644
--- a/arch/sparc/include/asm/visasm.h
+++ b/arch/sparc/include/asm/visasm.h
@@ -57,6 +57,7 @@ static inline void save_and_clear_fpu(void) {
 "               " : : "i" (FPRS_FEF|FPRS_DU) :
                 "o5", "g1", "g2", "g3", "g7", "cc");
 }
+extern int vis_emul(struct pt_regs *, unsigned int);
 #endif
 
 #endif /* _SPARC64_ASI_H */
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index 6e03a2a7863..2d658209509 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -13,15 +13,13 @@ obj-y    := entry.o wof.o wuf.o etrap.o rtrap.o traps.o $(IRQ_OBJS) \
             time.o windows.o cpu.o devices.o \
             tadpole.o tick14.o ptrace.o \
             unaligned.o una_asm.o muldiv.o \
-            prom.o of_device.o devres.o
+            prom.o of_device.o devres.o dma.o
 
 devres-y = ../../../kernel/irq/devres.o
 
 obj-$(CONFIG_PCI) += pcic.o
-obj-$(CONFIG_SUN4) += sun4setup.o
 obj-$(CONFIG_SMP) += trampoline.o smp.o sun4m_smp.o sun4d_smp.o
 obj-$(CONFIG_SUN_AUXIO) += auxio.o
-obj-$(CONFIG_PCI) += ebus.o
 obj-$(CONFIG_SUN_PM) += apc.o pmc.o
 obj-$(CONFIG_MODULES) += module.o sparc_ksyms.o
 obj-$(CONFIG_SPARC_LED) += led.o
diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c
index 5267d48fb2c..4dd1ba752ce 100644
--- a/arch/sparc/kernel/apc.c
+++ b/arch/sparc/kernel/apc.c
@@ -12,9 +12,10 @@
 #include <linux/miscdevice.h>
 #include <linux/smp_lock.h>
 #include <linux/pm.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/io.h>
-#include <asm/sbus.h>
 #include <asm/oplib.h>
 #include <asm/uaccess.h>
 #include <asm/auxio.h>
@@ -29,11 +30,10 @@
 #define APC_OBPNAME     "power-management"
 #define APC_DEVNAME "apc"
 
-volatile static u8 __iomem *regs; 
-static int apc_regsize;
+static u8 __iomem *regs;
 static int apc_no_idle __initdata = 0;
 
-#define apc_readb(offs)                 (sbus_readb(regs+offs))
+#define apc_readb(offs)         (sbus_readb(regs+offs))
 #define apc_writeb(val, offs)   (sbus_writeb(val, regs+offs))
 
 /* Specify "apc=noidle" on the kernel command line to 
@@ -69,9 +69,9 @@ static void apc_swift_idle(void)
 #endif
 } 
 
-static inline void apc_free(void)
+static inline void apc_free(struct of_device *op)
 {
-        sbus_iounmap(regs, apc_regsize);
+        of_iounmap(&op->resource[0], regs, resource_size(&op->resource[0]));
 }
 
 static int apc_open(struct inode *inode, struct file *f)
@@ -153,52 +153,56 @@ static const struct file_operations apc_fops = {
 
 static struct miscdevice apc_miscdev = { APC_MINOR, APC_DEVNAME, &apc_fops };
 
-static int __init apc_probe(void)
+static int __devinit apc_probe(struct of_device *op,
+                               const struct of_device_id *match)
 {
-        struct sbus_bus *sbus = NULL;
-        struct sbus_dev *sdev = NULL;
-        int iTmp = 0;
-
-        for_each_sbus(sbus) {
-                for_each_sbusdev(sdev, sbus) {
-                        if (!strcmp(sdev->prom_name, APC_OBPNAME)) {
-                                goto sbus_done;
-                        }
-                }
-        }
+        int err;
 
-sbus_done:
-        if (!sdev) {
-                return -ENODEV;
-        }
-
-        apc_regsize = sdev->reg_addrs[0].reg_size;
-        regs = sbus_ioremap(&sdev->resource[0], 0, 
-                                   apc_regsize, APC_OBPNAME);
-        if(!regs) {
+        regs = of_ioremap(&op->resource[0], 0,
+                          resource_size(&op->resource[0]), APC_OBPNAME);
+        if (!regs) {
                 printk(KERN_ERR "%s: unable to map registers\n", APC_DEVNAME);
                 return -ENODEV;
         }
 
-        iTmp = misc_register(&apc_miscdev);
-        if (iTmp != 0) {
+        err = misc_register(&apc_miscdev);
+        if (err) {
                 printk(KERN_ERR "%s: unable to register device\n", APC_DEVNAME);
-                apc_free();
+                apc_free(op);
                 return -ENODEV;
         }
 
         /* Assign power management IDLE handler */
-        if(!apc_no_idle)
+        if (!apc_no_idle)
                 pm_idle = apc_swift_idle;       
 
         printk(KERN_INFO "%s: power management initialized%s\n", 
-                APC_DEVNAME, apc_no_idle ? " (CPU idle disabled)" : "");
+               APC_DEVNAME, apc_no_idle ? " (CPU idle disabled)" : "");
+
         return 0;
 }
 
+static struct of_device_id __initdata apc_match[] = {
+        {
+                .name = APC_OBPNAME,
+        },
+        {},
+};
+MODULE_DEVICE_TABLE(of, apc_match);
+
+static struct of_platform_driver apc_driver = {
+        .name           = "apc",
+        .match_table    = apc_match,
+        .probe          = apc_probe,
+};
+
+static int __init apc_init(void)
+{
+        return of_register_driver(&apc_driver, &of_bus_type);
+}
+
 /* This driver is not critical to the boot process
  * and is easiest to ioremap when SBus is already
  * initialized, so we install ourselves thusly:
  */
-__initcall(apc_probe);
-
+__initcall(apc_init);
diff --git a/arch/sparc/kernel/auxio.c b/arch/sparc/kernel/auxio.c
index baf4ed3fb0f..09c857215a5 100644
--- a/arch/sparc/kernel/auxio.c
+++ b/arch/sparc/kernel/auxio.c
@@ -6,6 +6,8 @@
 #include <linux/stddef.h>
 #include <linux/init.h>
 #include <linux/spinlock.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 #include <asm/oplib.h>
 #include <asm/io.h>
 #include <asm/auxio.h>
@@ -59,7 +61,7 @@ void __init auxio_probe(void)
         r.flags = auxregs[0].which_io & 0xF;
         r.start = auxregs[0].phys_addr;
         r.end = auxregs[0].phys_addr + auxregs[0].reg_size - 1;
-        auxio_register = sbus_ioremap(&r, 0, auxregs[0].reg_size, "auxio");
+        auxio_register = of_ioremap(&r, 0, auxregs[0].reg_size, "auxio");
         /* Fix the address on sun4m and sun4c. */
         if((((unsigned long) auxregs[0].phys_addr) & 3) == 3 ||
            sparc_cpu_model == sun4c)
@@ -128,7 +130,7 @@ void __init auxio_power_probe(void)
         r.flags = regs.which_io & 0xF;
         r.start = regs.phys_addr;
         r.end = regs.phys_addr + regs.reg_size - 1;
-        auxio_power_register = (unsigned char *) sbus_ioremap(&r, 0,
+        auxio_power_register = (unsigned char *) of_ioremap(&r, 0,
             regs.reg_size, "auxpower");
 
         /* Display a quick message on the console. */
diff --git a/arch/sparc/kernel/devices.c b/arch/sparc/kernel/devices.c
index b240b8863fd..ad656b044b8 100644
--- a/arch/sparc/kernel/devices.c
+++ b/arch/sparc/kernel/devices.c
@@ -143,7 +143,7 @@ void __init device_scan(void)
 #endif
         clock_stop_probe();
 
-        if (ARCH_SUN4C_SUN4)
+        if (ARCH_SUN4C)
                 sun4c_probe_memerr_reg();
 
         return;
diff --git a/arch/sparc/kernel/dma.c b/arch/sparc/kernel/dma.c
new file mode 100644
index 00000000000..ebc8403b035
--- /dev/null
+++ b/arch/sparc/kernel/dma.c
@@ -0,0 +1,227 @@
+/* dma.c: PCI and SBUS DMA accessors for 32-bit sparc.
+ *
+ * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/scatterlist.h>
+#include <linux/mm.h>
+
+#ifdef CONFIG_PCI
+#include <linux/pci.h>
+#endif
+
+#include "dma.h"
+
+int dma_supported(struct device *dev, u64 mask)
+{
+#ifdef CONFIG_PCI
+        if (dev->bus == &pci_bus_type)
+                return pci_dma_supported(to_pci_dev(dev), mask);
+#endif
+        return 0;
+}
+EXPORT_SYMBOL(dma_supported);
+
+int dma_set_mask(struct device *dev, u64 dma_mask)
+{
+#ifdef CONFIG_PCI
+        if (dev->bus == &pci_bus_type)
+                return pci_set_dma_mask(to_pci_dev(dev), dma_mask);
+#endif
+        return -EOPNOTSUPP;
+}
+EXPORT_SYMBOL(dma_set_mask);
+
+void *dma_alloc_coherent(struct device *dev, size_t size,
+                         dma_addr_t *dma_handle, gfp_t flag)
+{
+#ifdef CONFIG_PCI
+        if (dev->bus == &pci_bus_type)
+                return pci_alloc_consistent(to_pci_dev(dev), size, dma_handle);
+#endif
+        return sbus_alloc_consistent(dev, size, dma_handle);
+}
+EXPORT_SYMBOL(dma_alloc_coherent);
+
+void dma_free_coherent(struct device *dev, size_t size,
+                       void *cpu_addr, dma_addr_t dma_handle)
+{
+#ifdef CONFIG_PCI
+        if (dev->bus == &pci_bus_type) {
+                pci_free_consistent(to_pci_dev(dev), size,
+                                    cpu_addr, dma_handle);
+                return;
+        }
+#endif
+        sbus_free_consistent(dev, size, cpu_addr, dma_handle);
+}
+EXPORT_SYMBOL(dma_free_coherent);
+
+dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
+                          size_t size, enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+        if (dev->bus == &pci_bus_type)
+                return pci_map_single(to_pci_dev(dev), cpu_addr,
+                                      size, (int)direction);
+#endif
+        return sbus_map_single(dev, cpu_addr, size, (int)direction);
+}
+EXPORT_SYMBOL(dma_map_single);
+
+void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
+                      size_t size,
+                      enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+        if (dev->bus == &pci_bus_type) {
+                pci_unmap_single(to_pci_dev(dev), dma_addr,
+                                 size, (int)direction);
+                return;
+        }
+#endif
+        sbus_unmap_single(dev, dma_addr, size, (int)direction);
+}
+EXPORT_SYMBOL(dma_unmap_single);
+
+dma_addr_t dma_map_page(struct device *dev, struct page *page,
+                        unsigned long offset, size_t size,
+                        enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+        if (dev->bus == &pci_bus_type)
+                return pci_map_page(to_pci_dev(dev), page, offset,
+                                    size, (int)direction);
+#endif
+        return sbus_map_single(dev, page_address(page) + offset,
+                               size, (int)direction);
+}
+EXPORT_SYMBOL(dma_map_page);
+
+void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
+                    size_t size, enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+        if (dev->bus == &pci_bus_type) {
+                pci_unmap_page(to_pci_dev(dev), dma_address,
+                               size, (int)direction);
+                return;
+        }
+#endif
+        sbus_unmap_single(dev, dma_address, size, (int)direction);
+}
+EXPORT_SYMBOL(dma_unmap_page);
+
+int dma_map_sg(struct device *dev, struct scatterlist *sg,
+                             int nents, enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+        if (dev->bus == &pci_bus_type)
+                return pci_map_sg(to_pci_dev(dev), sg, nents, (int)direction);
+#endif
+        return sbus_map_sg(dev, sg, nents, direction);
+}
+EXPORT_SYMBOL(dma_map_sg);
+
+void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+                  int nents, enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+        if (dev->bus == &pci_bus_type) {
+                pci_unmap_sg(to_pci_dev(dev), sg, nents, (int)direction);
+                return;
+        }
+#endif
+        sbus_unmap_sg(dev, sg, nents, (int)direction);
+}
+EXPORT_SYMBOL(dma_unmap_sg);
+
+void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
+                             size_t size, enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+        if (dev->bus == &pci_bus_type) {
+                pci_dma_sync_single_for_cpu(to_pci_dev(dev), dma_handle,
+                                            size, (int)direction);
+                return;
+        }
+#endif
+        sbus_dma_sync_single_for_cpu(dev, dma_handle, size, (int) direction);
+}
+EXPORT_SYMBOL(dma_sync_single_for_cpu);
+
+void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
+                                size_t size, enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+        if (dev->bus == &pci_bus_type) {
+                pci_dma_sync_single_for_device(to_pci_dev(dev), dma_handle,
+                                               size, (int)direction);
+                return;
+        }
+#endif
+        sbus_dma_sync_single_for_device(dev, dma_handle, size, (int) direction);
+}
+EXPORT_SYMBOL(dma_sync_single_for_device);
+
+void dma_sync_single_range_for_cpu(struct device *dev,
+                                   dma_addr_t dma_handle,
+                                   unsigned long offset,
+                                   size_t size,
+                                   enum dma_data_direction direction)
+{
+        dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction);
+}
+EXPORT_SYMBOL(dma_sync_single_range_for_cpu);
+
+void dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
+                                      unsigned long offset, size_t size,
+                                      enum dma_data_direction direction)
+{
+        dma_sync_single_for_device(dev, dma_handle+offset, size, direction);
+}
+EXPORT_SYMBOL(dma_sync_single_range_for_device);
+
+void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+                         int nelems, enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+        if (dev->bus == &pci_bus_type) {
+                pci_dma_sync_sg_for_cpu(to_pci_dev(dev), sg,
+                                        nelems, (int)direction);
+                return;
+        }
+#endif
+        BUG();
+}
+EXPORT_SYMBOL(dma_sync_sg_for_cpu);
+
+void dma_sync_sg_for_device(struct device *dev,
+                            struct scatterlist *sg, int nelems,
+                            enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+        if (dev->bus == &pci_bus_type) {
+                pci_dma_sync_sg_for_device(to_pci_dev(dev), sg,
+                                           nelems, (int)direction);
+                return;
+        }
+#endif
+        BUG();
+}
+EXPORT_SYMBOL(dma_sync_sg_for_device);
+
+int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+        return (dma_addr == DMA_ERROR_CODE);
+}
+EXPORT_SYMBOL(dma_mapping_error);
+
+int dma_get_cache_alignment(void)
+{
+        return 32;
+}
+EXPORT_SYMBOL(dma_get_cache_alignment);
diff --git a/arch/sparc/kernel/dma.h b/arch/sparc/kernel/dma.h
new file mode 100644
index 00000000000..f8d8951adb5
--- /dev/null
+++ b/arch/sparc/kernel/dma.h
@@ -0,0 +1,14 @@
+void *sbus_alloc_consistent(struct device *dev, long len, u32 *dma_addrp);
+void sbus_free_consistent(struct device *dev, long n, void *p, u32 ba);
+dma_addr_t sbus_map_single(struct device *dev, void *va,
+                           size_t len, int direction);
+void sbus_unmap_single(struct device *dev, dma_addr_t ba,
+                       size_t n, int direction);
+int sbus_map_sg(struct device *dev, struct scatterlist *sg,
+                int n, int direction);
+void sbus_unmap_sg(struct device *dev, struct scatterlist *sg,
+                   int n, int direction);
+void sbus_dma_sync_single_for_cpu(struct device *dev, dma_addr_t ba,
+                                  size_t size, int direction);
+void sbus_dma_sync_single_for_device(struct device *dev, dma_addr_t ba,
+                                     size_t size, int direction);
diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c
deleted file mode 100644
index 97294232259..00000000000
--- a/arch/sparc/kernel/ebus.c
+++ /dev/null
@@ -1,393 +0,0 @@
-/*
- * ebus.c: PCI to EBus bridge device.
- *
- * Copyright (C) 1997  Eddie C. Dost  (ecd@skynet.be)
- *
- * Adopted for sparc by V. Roganov and G. Raiko.
- * Fixes for different platforms by Pete Zaitcev.
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-
-#include <asm/system.h>
-#include <asm/page.h>
-#include <asm/pbm.h>
-#include <asm/ebus.h>
-#include <asm/io.h>
-#include <asm/oplib.h>
-#include <asm/prom.h>
-#include <asm/bpp.h>
-
-struct linux_ebus *ebus_chain = NULL;
-
-/* We are together with pcic.c under CONFIG_PCI. */
-extern unsigned int pcic_pin_to_irq(unsigned int, const char *name);
-
-/*
- * IRQ Blacklist
- * Here we list PROMs and systems that are known to supply crap as IRQ numbers.
- */
-struct ebus_device_irq {
-        char *name;
-        unsigned int pin;
-};
-
-struct ebus_system_entry {
-        char *esname;
-        struct ebus_device_irq *ipt;
-};
-
-static struct ebus_device_irq je1_1[] = {
-        { "8042",                3 },
-        { "SUNW,CS4231",         0 },
-        { "parallel",            0 },
-        { "se",                  2 },
-        { NULL, 0 }
-};
-
-/*
- * Gleb's JE1 supplied reasonable pin numbers, but mine did not (OBP 2.32).
- * Blacklist the sucker... Note that Gleb's system will work.
- */
-static struct ebus_system_entry ebus_blacklist[] = {
-        { "SUNW,JavaEngine1", je1_1 },
-        { NULL, NULL }
-};
-
-static struct ebus_device_irq *ebus_blackp = NULL;
-
-/*
- */
-static inline unsigned long ebus_alloc(size_t size)
-{
-        return (unsigned long)kmalloc(size, GFP_ATOMIC);
-}
-
-/*
- */
-static int __init ebus_blacklist_irq(const char *name)
-{
-        struct ebus_device_irq *dp;
-
-        if ((dp = ebus_blackp) != NULL) {
-                for (; dp->name != NULL; dp++) {
-                        if (strcmp(name, dp->name) == 0) {
-                                return pcic_pin_to_irq(dp->pin, name);
-                        }
-                }
-        }
-        return 0;
-}
-
-static void __init fill_ebus_child(struct device_node *dp,
-                                   struct linux_ebus_child *dev)
-{
-        const int *regs;
-        const int *irqs;
-        int i, len;
-
-        dev->prom_node = dp;
-        regs = of_get_property(dp, "reg", &len);
-        if (!regs)
-                len = 0;
-        dev->num_addrs = len / sizeof(regs[0]);
-
-        for (i = 0; i < dev->num_addrs; i++) {
-                if (regs[i] >= dev->parent->num_addrs) {
-                        prom_printf("UGH: property for %s was %d, need < %d\n",
-                                    dev->prom_node->name, len,
-                                    dev->parent->num_addrs);
-                        panic(__func__);
-                }
-
-                /* XXX resource */
-                dev->resource[i].start =
-                        dev->parent->resource[regs[i]].start;
-        }
-
-        for (i = 0; i < PROMINTR_MAX; i++)
-                dev->irqs[i] = PCI_IRQ_NONE;
-
-        if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_node->name)) != 0) {
-                dev->num_irqs = 1;
-        } else {
-                irqs = of_get_property(dp, "interrupts", &len);
-                if (!irqs) {
-                        dev->num_irqs = 0;
-                        dev->irqs[0] = 0;
-                        if (dev->parent->num_irqs != 0) {
-                                dev->num_irqs = 1;
-                                dev->irqs[0] = dev->parent->irqs[0];
-                        }
-                } else {
-                        dev->num_irqs = len / sizeof(irqs[0]);
-                        if (irqs[0] == 0 || irqs[0] >= 8) {
-                                /*
-                                 * XXX Zero is a valid pin number...
-                                 * This works as long as Ebus is not wired
-                                 * to INTA#.
-                                 */
-                                printk("EBUS: %s got bad irq %d from PROM\n",
-                                       dev->prom_node->name, irqs[0]);
-                                dev->num_irqs = 0;
-                                dev->irqs[0] = 0;
-                        } else {
-                                dev->irqs[0] =
-                                        pcic_pin_to_irq(irqs[0],
-                                                        dev->prom_node->name);
-                        }
-                }
-        }
-}
-
-static void __init fill_ebus_device(struct device_node *dp,
-                                    struct linux_ebus_device *dev)
-{
-        const struct linux_prom_registers *regs;
-        struct linux_ebus_child *child;
-        struct dev_archdata *sd;
-        const int *irqs;
-        int i, n, len;
-        unsigned long baseaddr;
-
-        dev->prom_node = dp;
-
-        regs = of_get_property(dp, "reg", &len);
-        if (!regs)
-                len = 0;
-        if (len % sizeof(struct linux_prom_registers)) {
-                prom_printf("UGH: proplen for %s was %d, need multiple of %d\n",
-                            dev->prom_node->name, len,
-                            (int)sizeof(struct linux_prom_registers));
-                panic(__func__);
-        }
-        dev->num_addrs = len / sizeof(struct linux_prom_registers);
-
-        for (i = 0; i < dev->num_addrs; i++) {
-                /*
-                 * XXX Collect JE-1 PROM
-                 * 
-                 * Example - JS-E with 3.11:
-                 *  /ebus
-                 *      regs 
-                 *        0x00000000, 0x0, 0x00000000, 0x0, 0x00000000,
-                 *        0x82000010, 0x0, 0xf0000000, 0x0, 0x01000000,
-                 *        0x82000014, 0x0, 0x38800000, 0x0, 0x00800000,
-                 *      ranges
-                 *        0x00, 0x00000000, 0x02000010, 0x0, 0x0, 0x01000000,
-                 *        0x01, 0x01000000, 0x02000014, 0x0, 0x0, 0x00800000,
-                 *  /ebus/8042
-                 *      regs
-                 *        0x00000001, 0x00300060, 0x00000008,
-                 *        0x00000001, 0x00300060, 0x00000008,
-                 */
-                n = regs[i].which_io;
-                if (n >= 4) {
-                        /* XXX This is copied from old JE-1 by Gleb. */
-                        n = (regs[i].which_io - 0x10) >> 2;
-                } else {
-                        ;
-                }
-
-/*
- * XXX Now as we have regions, why don't we make an on-demand allocation...
- */
-                dev->resource[i].start = 0;
-                if ((baseaddr = dev->bus->self->resource[n].start +
-                    regs[i].phys_addr) != 0) {
-                        /* dev->resource[i].name = dev->prom_name; */
-                        if ((baseaddr = (unsigned long) ioremap(baseaddr,
-                            regs[i].reg_size)) == 0) {
-                                panic("ebus: unable to remap dev %s",
-                                      dev->prom_node->name);
-                        }
-                }
-                dev->resource[i].start = baseaddr;      /* XXX Unaligned */
-        }
-
-        for (i = 0; i < PROMINTR_MAX; i++)
-                dev->irqs[i] = PCI_IRQ_NONE;
-
-        if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_node->name)) != 0) {
-                dev->num_irqs = 1;
-        } else {
-                irqs = of_get_property(dp, "interrupts", &len);
-                if (!irqs) {
-                        dev->num_irqs = 0;
-                        if ((dev->irqs[0] = dev->bus->self->irq) != 0) {
-                                dev->num_irqs = 1;
-/* P3 */ /* printk("EBUS: child %s irq %d from parent\n", dev->prom_name, dev->irqs[0]); */
-                        }
-                } else {
-                        dev->num_irqs = 1;  /* dev->num_irqs = len / sizeof(irqs[0]); */
-                        if (irqs[0] == 0 || irqs[0] >= 8) {
-                                /* See above for the parent. XXX */
-                                printk("EBUS: %s got bad irq %d from PROM\n",
-                                       dev->prom_node->name, irqs[0]);
-                                dev->num_irqs = 0;
-                                dev->irqs[0] = 0;
-                        } else {
-                                dev->irqs[0] =
-                                        pcic_pin_to_irq(irqs[0],
-                                                        dev->prom_node->name);
-                        }
-                }
-        }
-
-        sd = &dev->ofdev.dev.archdata;
-        sd->prom_node = dp;
-        sd->op = &dev->ofdev;
-        sd->iommu = dev->bus->ofdev.dev.parent->archdata.iommu;
-
-        dev->ofdev.node = dp;
-        dev->ofdev.dev.parent = &dev->bus->ofdev.dev;
-        dev->ofdev.dev.bus = &ebus_bus_type;
-        sprintf(dev->ofdev.dev.bus_id, "ebus[%08x]", dp->node);
-
-        /* Register with core */
-        if (of_device_register(&dev->ofdev) != 0)
-                printk(KERN_DEBUG "ebus: device registration error for %s!\n",
-                       dp->path_component_name);
-
-        if ((dp = dp->child) != NULL) {
-                dev->children = (struct linux_ebus_child *)
-                        ebus_alloc(sizeof(struct linux_ebus_child));
-
-                child = dev->children;
-                child->next = NULL;
-                child->parent = dev;
-                child->bus = dev->bus;
-                fill_ebus_child(dp, child);
-
-                while ((dp = dp->sibling) != NULL) {
-                        child->next = (struct linux_ebus_child *)
-                                ebus_alloc(sizeof(struct linux_ebus_child));
-
-                        child = child->next;
-                        child->next = NULL;
-                        child->parent = dev;
-                        child->bus = dev->bus;
-                        fill_ebus_child(dp, child);
-                }
-        }
-}
-
-void __init ebus_init(void)
-{
-        const struct linux_prom_pci_registers *regs;
-        struct linux_pbm_info *pbm;
-        struct linux_ebus_device *dev;
-        struct linux_ebus *ebus;
-        struct ebus_system_entry *sp;
-        struct pci_dev *pdev;
-        struct pcidev_cookie *cookie;
-        struct device_node *dp;
-        struct resource *p;
-        unsigned short pci_command;
-        int len, reg, nreg;
-        int num_ebus = 0;
-
-        dp = of_find_node_by_path("/");
-        for (sp = ebus_blacklist; sp->esname != NULL; sp++) {
-                if (strcmp(dp->name, sp->esname) == 0) {
-                        ebus_blackp = sp->ipt;
-                        break;
-                }
-        }
-
-        pdev = pci_get_device(PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_EBUS, NULL);
-        if (!pdev)
-                return;
-
-        cookie = pdev->sysdata;
-        dp = cookie->prom_node;
-
-        ebus_chain = ebus = (struct linux_ebus *)
-                        ebus_alloc(sizeof(struct linux_ebus));
-        ebus->next = NULL;
-
-        while (dp) {
-                struct device_node *nd;
-
-                ebus->prom_node = dp;
-                ebus->self = pdev;
-                ebus->parent = pbm = cookie->pbm;
-
-                /* Enable BUS Master. */
-                pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
-                pci_command |= PCI_COMMAND_MASTER;
-                pci_write_config_word(pdev, PCI_COMMAND, pci_command);
-
-                regs = of_get_property(dp, "reg", &len);
-                if (!regs) {
-                        prom_printf("%s: can't find reg property\n",
-                                    __func__);
-                        prom_halt();
-                }
-                nreg = len / sizeof(struct linux_prom_pci_registers);
-
-                p = &ebus->self->resource[0];
-                for (reg = 0; reg < nreg; reg++) {
-                        if (!(regs[reg].which_io & 0x03000000))
-                                continue;
-
-                        (p++)->start = regs[reg].phys_lo;
-                }
-
-                ebus->ofdev.node = dp;
-                ebus->ofdev.dev.parent = &pdev->dev;
-                ebus->ofdev.dev.bus = &ebus_bus_type;
-                sprintf(ebus->ofdev.dev.bus_id, "ebus%d", num_ebus);
-
-                /* Register with core */
-                if (of_device_register(&ebus->ofdev) != 0)
-                        printk(KERN_DEBUG "ebus: device registration error for %s!\n",
-                               dp->path_component_name);
-
-
-                nd = dp->child;
-                if (!nd)
-                        goto next_ebus;
-
-                ebus->devices = (struct linux_ebus_device *)
-                                ebus_alloc(sizeof(struct linux_ebus_device));
-
-                dev = ebus->devices;
-                dev->next = NULL;
-                dev->children = NULL;
-                dev->bus = ebus;
-                fill_ebus_device(nd, dev);
-
-                while ((nd = nd->sibling) != NULL) {
-                        dev->next = (struct linux_ebus_device *)
-                                ebus_alloc(sizeof(struct linux_ebus_device));
-
-                        dev = dev->next;
-                        dev->next = NULL;
-                        dev->children = NULL;
-                        dev->bus = ebus;
-                        fill_ebus_device(nd, dev);
-                }
-
-        next_ebus:
-                pdev = pci_get_device(PCI_VENDOR_ID_SUN,
-                                       PCI_DEVICE_ID_SUN_EBUS, pdev);
-                if (!pdev)
-                        break;
-
-                cookie = pdev->sysdata;
-                dp = cookie->prom_node;
-
-                ebus->next = (struct linux_ebus *)
-                        ebus_alloc(sizeof(struct linux_ebus));
-                ebus = ebus->next;
-                ebus->next = NULL;
-                ++num_ebus;
-        }
-        if (pdev)
-                pci_dev_put(pdev);
-}
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index e8cdf715a54..faf9ccd9ef5 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -20,11 +20,7 @@
 #include <asm/memreg.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
-#ifdef CONFIG_SUN4
-#include <asm/pgtsun4.h>
-#else
 #include <asm/pgtsun4c.h>
-#endif
 #include <asm/winmacro.h>
 #include <asm/signal.h>
 #include <asm/obio.h>
@@ -276,17 +272,18 @@ smp4m_ticker:
          */
 maybe_smp4m_msg:
         GET_PROCESSOR4M_ID(o3)
-        set     sun4m_interrupts, %l5
-        ld      [%l5], %o5
+        sethi   %hi(sun4m_irq_percpu), %l5
+        sll     %o3, 2, %o3
+        or      %l5, %lo(sun4m_irq_percpu), %o5
         sethi   %hi(0x40000000), %o2
-        sll     %o3, 12, %o3
         ld      [%o5 + %o3], %o1
-        andcc   %o1, %o2, %g0
+        ld      [%o1 + 0x00], %o3       ! sun4m_irq_percpu[cpu]->pending
+        andcc   %o3, %o2, %g0
         be,a    smp4m_ticker
          cmp    %l7, 14
-        st      %o2, [%o5 + 0x4]
+        st      %o2, [%o1 + 0x04]       ! sun4m_irq_percpu[cpu]->clear=0x40000000
         WRITE_PAUSE
-        ld      [%o5], %g0
+        ld      [%o1 + 0x00], %g0       ! sun4m_irq_percpu[cpu]->pending
         WRITE_PAUSE
         or      %l0, PSR_PIL, %l4
         wr      %l4, 0x0, %psr
@@ -304,16 +301,16 @@ linux_trap_ipi15_sun4m:
         SAVE_ALL
         sethi   %hi(0x80000000), %o2
         GET_PROCESSOR4M_ID(o0)
-        set     sun4m_interrupts, %l5
-        ld      [%l5], %o5
-        sll     %o0, 12, %o0
-        add     %o5, %o0, %o5
-        ld      [%o5], %o3
+        sethi   %hi(sun4m_irq_percpu), %l5
+        or      %l5, %lo(sun4m_irq_percpu), %o5
+        sll     %o0, 2, %o0
+        ld      [%o5 + %o0], %o5
+        ld      [%o5 + 0x00], %o3       ! sun4m_irq_percpu[cpu]->pending
         andcc   %o3, %o2, %g0
         be      1f                      ! Must be an NMI async memory error
-         st     %o2, [%o5 + 4]
+         st     %o2, [%o5 + 0x04]       ! sun4m_irq_percpu[cpu]->clear=0x80000000
         WRITE_PAUSE
-        ld      [%o5], %g0
+        ld      [%o5 + 0x00], %g0       ! sun4m_irq_percpu[cpu]->pending
         WRITE_PAUSE
         or      %l0, PSR_PIL, %l4
         wr      %l4, 0x0, %psr
@@ -327,12 +324,11 @@ linux_trap_ipi15_sun4m:
 1:
         /* NMI async memory error handling. */
         sethi   %hi(0x80000000), %l4
-        sethi   %hi(0x4000), %o3
-        sub     %o5, %o0, %o5
-        add     %o5, %o3, %l5
-        st      %l4, [%l5 + 0xc]
+        sethi   %hi(sun4m_irq_global), %o5
+        ld      [%o5 + %lo(sun4m_irq_global)], %l5
+        st      %l4, [%l5 + 0x0c]       ! sun4m_irq_global->mask_set=0x80000000
         WRITE_PAUSE
-        ld      [%l5], %g0
+        ld      [%l5 + 0x00], %g0       ! sun4m_irq_global->pending
         WRITE_PAUSE
         or      %l0, PSR_PIL, %l4
         wr      %l4, 0x0, %psr
@@ -341,9 +337,9 @@ linux_trap_ipi15_sun4m:
         WRITE_PAUSE
         call    sun4m_nmi
          nop
-        st      %l4, [%l5 + 0x8]
+        st      %l4, [%l5 + 0x08]       ! sun4m_irq_global->mask_clear=0x80000000
         WRITE_PAUSE
-        ld      [%l5], %g0
+        ld      [%l5 + 0x00], %g0       ! sun4m_irq_global->pending
         WRITE_PAUSE
         RESTORE_ALL
 
@@ -775,11 +771,7 @@ vac_linesize_patch_32:		subcc	%l7, 32, %l7
  * Ugly, but we cant use hardware flushing on the sun4 and we'd require
  * two instructions (Anton)
  */
-#ifdef CONFIG_SUN4
-vac_hwflush_patch1_on:          nop
-#else
 vac_hwflush_patch1_on:          addcc   %l7, -PAGE_SIZE, %l7
-#endif
 
 vac_hwflush_patch2_on:          sta     %g0, [%l3 + %l7] ASI_HWFLUSHSEG
 
@@ -798,42 +790,10 @@ vac_hwflush_patch2_on:		sta	%g0, [%l3 + %l7] ASI_HWFLUSHSEG
 ! %l7 = 1 for textfault
 ! We want error in %l5, vaddr in %l6
 sun4c_fault:
-#ifdef CONFIG_SUN4
-        sethi   %hi(sun4c_memerr_reg), %l4
-        ld      [%l4+%lo(sun4c_memerr_reg)], %l4  ! memerr ctrl reg addr
-        ld      [%l4], %l6              ! memerr ctrl reg
-        ld      [%l4 + 4], %l5          ! memerr vaddr reg
-        andcc   %l6, 0x80, %g0          ! check for error type
-        st      %g0, [%l4 + 4]          ! clear the error
-        be      0f                      ! normal error
-         sethi  %hi(AC_BUS_ERROR), %l4  ! bus err reg addr
-
-        call    prom_halt       ! something weird happened
-                                        ! what exactly did happen?
-                                        ! what should we do here?
-
-0:      or      %l4, %lo(AC_BUS_ERROR), %l4     ! bus err reg addr
-        lduba   [%l4] ASI_CONTROL, %l6  ! bus err reg
-
-        cmp    %l7, 1                   ! text fault?
-        be      1f                      ! yes
-         nop
-
-        ld     [%l1], %l4               ! load instruction that caused fault
-        srl     %l4, 21, %l4
-        andcc   %l4, 1, %g0             ! store instruction?
-
-        be      1f                      ! no
-         sethi  %hi(SUN4C_SYNC_BADWRITE), %l4 ! yep
-                                        ! %lo(SUN4C_SYNC_BADWRITE) = 0
-        or      %l4, %l6, %l6           ! set write bit to emulate sun4c
-1:
-#else
         sethi   %hi(AC_SYNC_ERR), %l4
         add     %l4, 0x4, %l6                   ! AC_SYNC_VA in %l6
         lda     [%l6] ASI_CONTROL, %l5          ! Address
         lda     [%l4] ASI_CONTROL, %l6          ! Error, retained for a bit
-#endif
 
         andn    %l5, 0xfff, %l5                 ! Encode all info into l7
         srl     %l6, 14, %l4
@@ -880,12 +840,7 @@ sun4c_fault:
         or      %l4, %lo(swapper_pg_dir), %l4
         sll     %l6, 2, %l6
         ld      [%l4 + %l6], %l4
-#ifdef CONFIG_SUN4
-        sethi   %hi(PAGE_MASK), %l6
-        andcc   %l4, %l6, %g0
-#else
         andcc   %l4, PAGE_MASK, %g0
-#endif
         be      sun4c_fault_fromuser
          lduXa  [%l5] ASI_SEGMAP, %l4
 
@@ -937,11 +892,7 @@ invalid_segment_patch1:
         ld      [%l6 + 0x08], %l3       ! tmp = entry->vaddr
 
         ! Flush segment from the cache.
-#ifdef CONFIG_SUN4
-        sethi   %hi((128 * 1024)), %l7
-#else
         sethi   %hi((64 * 1024)), %l7
-#endif
 9:
 vac_hwflush_patch1:
 vac_linesize_patch:
@@ -1029,12 +980,7 @@ invalid_segment_patch2:
         or      %l4, %lo(swapper_pg_dir), %l4
         sll     %l3, 2, %l3
         ld      [%l4 + %l3], %l4
-#ifndef CONFIG_SUN4
         and     %l4, PAGE_MASK, %l4
-#else
-        sethi   %hi(PAGE_MASK), %l6
-        and     %l4, %l6, %l4
-#endif
 
         srl     %l5, (PAGE_SHIFT - 2), %l6
         and     %l6, ((SUN4C_PTRS_PER_PTE - 1) << 2), %l6
diff --git a/arch/sparc/kernel/head.S b/arch/sparc/kernel/head.S
index 50d9a16af79..2d325fd8457 100644
--- a/arch/sparc/kernel/head.S
+++ b/arch/sparc/kernel/head.S
@@ -63,15 +63,9 @@ cputypvar_sun4m:
 
         .align 4
 
-#ifndef CONFIG_SUN4
 sun4_notsup:
-        .asciz  "Sparc-Linux sun4 needs a specially compiled kernel, turn CONFIG_SUN4 on.\n\n"
+        .asciz  "Sparc-Linux sun4 support does no longer exist.\n\n"
         .align 4
-#else
-sun4cdm_notsup:
-        .asciz  "Kernel compiled with CONFIG_SUN4 cannot run on SUN4C/SUN4M/SUN4D\nTurn CONFIG_SUN4 off.\n\n"
-        .align 4
-#endif
 
 sun4e_notsup:
         .asciz  "Sparc-Linux sun4e support does not exist\n\n"
@@ -780,15 +774,6 @@ execute_in_high_mem:
                  nop
 
 found_version:
-#ifdef CONFIG_SUN4
-/* For people who try sun4 kernels, even if Configure.help advises them. */
-                ld      [%g7 + 0x68], %o1
-                set     sun4cdm_notsup, %o0
-                call    %o1
-                 nop
-                b       halt_me
-                 nop
-#endif
 /* Get the machine type via the mysterious romvec node operations. */
 
                 add     %g7, 0x1c, %l1          
@@ -1150,15 +1135,6 @@ sun4c_continue_boot:
                  nop
 
 sun4_init:
-#ifdef CONFIG_SUN4
-/* There, happy now Adrian? */
-                set     cputypval, %o2          ! Let everyone know we
-                set     ' ', %o0                        ! are a "sun4 " architecture
-                stb     %o0, [%o2 + 0x4]                
-
-                b got_prop 
-                 nop
-#else
                 sethi   %hi(SUN4_PROM_VECTOR+0x84), %o1
                 ld      [%o1 + %lo(SUN4_PROM_VECTOR+0x84)], %o1
                 set     sun4_notsup, %o0
@@ -1170,7 +1146,7 @@ sun4_init:
                  nop
 1:              ba      1b                      ! Cannot exit into KMON
                  nop
-#endif
+
 no_sun4e_here:
                 ld      [%g7 + 0x68], %o1
                 set     sun4e_notsup, %o0
diff --git a/arch/sparc/kernel/idprom.c b/arch/sparc/kernel/idprom.c
index fc511f3c4c1..223a6582e1e 100644
--- a/arch/sparc/kernel/idprom.c
+++ b/arch/sparc/kernel/idprom.c
@@ -12,10 +12,6 @@
 #include <asm/oplib.h>
 #include <asm/idprom.h>
 #include <asm/machines.h>  /* Fun with Sun released architectures. */
-#ifdef CONFIG_SUN4
-#include <asm/sun4paddr.h>
-extern void sun4setup(void);
-#endif
 
 struct idprom *idprom;
 static struct idprom idprom_buffer;
@@ -101,7 +97,4 @@ void __init idprom_init(void)
                     idprom->id_ethaddr[0], idprom->id_ethaddr[1],
                     idprom->id_ethaddr[2], idprom->id_ethaddr[3],
                     idprom->id_ethaddr[4], idprom->id_ethaddr[5]);
-#ifdef CONFIG_SUN4
-        sun4setup();
-#endif
 }
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 2a8a847764d..4f025b36934 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -42,10 +42,13 @@
 #include <asm/vaddrs.h>
 #include <asm/oplib.h>
 #include <asm/prom.h>
-#include <asm/sbus.h>
 #include <asm/page.h>
 #include <asm/pgalloc.h>
 #include <asm/dma.h>
+#include <asm/iommu.h>
+#include <asm/io-unit.h>
+
+#include "dma.h"
 
 #define mmu_inval_dma_area(p, l)        /* Anton pulled it out for 2.4.0-xx */
 
@@ -139,15 +142,6 @@ void iounmap(volatile void __iomem *virtual)
         }
 }
 
-/*
- */
-void __iomem *sbus_ioremap(struct resource *phyres, unsigned long offset,
-    unsigned long size, char *name)
-{
-        return _sparc_alloc_io(phyres->flags & 0xF,
-            phyres->start + offset, size, name);
-}
-
 void __iomem *of_ioremap(struct resource *res, unsigned long offset,
                          unsigned long size, char *name)
 {
@@ -164,13 +158,6 @@ void of_iounmap(struct resource *res, void __iomem *base, unsigned long size)
 EXPORT_SYMBOL(of_iounmap);
 
 /*
- */
-void sbus_iounmap(volatile void __iomem *addr, unsigned long size)
-{
-        iounmap(addr);
-}
-
-/*
  * Meat of mapping
  */
 static void __iomem *_sparc_alloc_io(unsigned int busno, unsigned long phys,
@@ -246,63 +233,19 @@ static void _sparc_free_io(struct resource *res)
 
 #ifdef CONFIG_SBUS
 
-void sbus_set_sbus64(struct sbus_dev *sdev, int x)
+void sbus_set_sbus64(struct device *dev, int x)
 {
         printk("sbus_set_sbus64: unsupported\n");
 }
 
-extern unsigned int sun4d_build_irq(struct sbus_dev *sdev, int irq);
-void __init sbus_fill_device_irq(struct sbus_dev *sdev)
-{
-        struct linux_prom_irqs irqs[PROMINTR_MAX];
-        int len;
-
-        len = prom_getproperty(sdev->prom_node, "intr",
-                               (char *)irqs, sizeof(irqs));
-        if (len != -1) {
-                sdev->num_irqs = len / 8;
-                if (sdev->num_irqs == 0) {
-                        sdev->irqs[0] = 0;
-                } else if (sparc_cpu_model == sun4d) {
-                        for (len = 0; len < sdev->num_irqs; len++)
-                                sdev->irqs[len] =
-                                        sun4d_build_irq(sdev, irqs[len].pri);
-                } else {
-                        for (len = 0; len < sdev->num_irqs; len++)
-                                sdev->irqs[len] = irqs[len].pri;
-                }
-        } else {
-                int interrupts[PROMINTR_MAX];
-
-                /* No "intr" node found-- check for "interrupts" node.
-                 * This node contains SBus interrupt levels, not IPLs
-                 * as in "intr", and no vector values.  We convert
-                 * SBus interrupt levels to PILs (platform specific).
-                 */
-                len = prom_getproperty(sdev->prom_node, "interrupts",
-                                       (char *)interrupts, sizeof(interrupts));
-                if (len == -1) {
-                        sdev->irqs[0] = 0;
-                        sdev->num_irqs = 0;
-                } else {
-                        sdev->num_irqs = len / sizeof(int);
-                        for (len = 0; len < sdev->num_irqs; len++) {
-                                sdev->irqs[len] =
-                                        sbint_to_irq(sdev, interrupts[len]);
-                        }
-                }
-        } 
-}
-
 /*
  * Allocate a chunk of memory suitable for DMA.
  * Typically devices use them for control blocks.
  * CPU may access them without any explicit flushing.
- *
- * XXX Some clever people know that sdev is not used and supply NULL. Watch.
  */
-void *sbus_alloc_consistent(struct sbus_dev *sdev, long len, u32 *dma_addrp)
+void *sbus_alloc_consistent(struct device *dev, long len, u32 *dma_addrp)
 {
+        struct of_device *op = to_of_device(dev);
         unsigned long len_total = (len + PAGE_SIZE-1) & PAGE_MASK;
         unsigned long va;
         struct resource *res;
@@ -336,13 +279,10 @@ void *sbus_alloc_consistent(struct sbus_dev *sdev, long len, u32 *dma_addrp)
          * XXX That's where sdev would be used. Currently we load
          * all iommu tables with the same translations.
          */
-        if (mmu_map_dma_area(dma_addrp, va, res->start, len_total) != 0)
+        if (mmu_map_dma_area(dev, dma_addrp, va, res->start, len_total) != 0)
                 goto err_noiommu;
 
-        /* Set the resource name, if known. */
-        if (sdev) {
-                res->name = sdev->prom_name;
-        }
+        res->name = op->node->name;
 
         return (void *)(unsigned long)res->start;
 
@@ -356,7 +296,7 @@ err_nopages:
         return NULL;
 }
 
-void sbus_free_consistent(struct sbus_dev *sdev, long n, void *p, u32 ba)
+void sbus_free_consistent(struct device *dev, long n, void *p, u32 ba)
 {
         struct resource *res;
         struct page *pgv;
@@ -383,8 +323,8 @@ void sbus_free_consistent(struct sbus_dev *sdev, long n, void *p, u32 ba)
         kfree(res);
 
         /* mmu_inval_dma_area(va, n); */ /* it's consistent, isn't it */
-        pgv = mmu_translate_dvma(ba);
-        mmu_unmap_dma_area(ba, n);
+        pgv = virt_to_page(p);
+        mmu_unmap_dma_area(dev, ba, n);
 
         __free_pages(pgv, get_order(n));
 }
@@ -394,7 +334,7 @@ void sbus_free_consistent(struct sbus_dev *sdev, long n, void *p, u32 ba)
  * CPU view of this memory may be inconsistent with
  * a device view and explicit flushing is necessary.
  */
-dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *va, size_t len, int direction)
+dma_addr_t sbus_map_single(struct device *dev, void *va, size_t len, int direction)
 {
         /* XXX why are some lengths signed, others unsigned? */
         if (len <= 0) {
@@ -404,17 +344,17 @@ dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *va, size_t len, int dire
         if (len > 256*1024) {                   /* __get_free_pages() limit */
                 return 0;
         }
-        return mmu_get_scsi_one(va, len, sdev->bus);
+        return mmu_get_scsi_one(dev, va, len);
 }
 
-void sbus_unmap_single(struct sbus_dev *sdev, dma_addr_t ba, size_t n, int direction)
+void sbus_unmap_single(struct device *dev, dma_addr_t ba, size_t n, int direction)
 {
-        mmu_release_scsi_one(ba, n, sdev->bus);
+        mmu_release_scsi_one(dev, ba, n);
 }
 
-int sbus_map_sg(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction)
+int sbus_map_sg(struct device *dev, struct scatterlist *sg, int n, int direction)
 {
-        mmu_get_scsi_sgl(sg, n, sdev->bus);
+        mmu_get_scsi_sgl(dev, sg, n);
 
         /*
          * XXX sparc64 can return a partial length here. sun4c should do this
@@ -423,145 +363,28 @@ int sbus_map_sg(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direct
         return n;
 }
 
-void sbus_unmap_sg(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction)
-{
-        mmu_release_scsi_sgl(sg, n, sdev->bus);
-}
-
-/*
- */
-void sbus_dma_sync_single_for_cpu(struct sbus_dev *sdev, dma_addr_t ba, size_t size, int direction)
-{
-#if 0
-        unsigned long va;
-        struct resource *res;
-
-        /* We do not need the resource, just print a message if invalid. */
-        res = _sparc_find_resource(&_sparc_dvma, ba);
-        if (res == NULL)
-                panic("sbus_dma_sync_single: 0x%x\n", ba);
-
-        va = page_address(mmu_translate_dvma(ba)); /* XXX higmem */
-        /*
-         * XXX This bogosity will be fixed with the iommu rewrite coming soon
-         * to a kernel near you. - Anton
-         */
-        /* mmu_inval_dma_area(va, (size + PAGE_SIZE-1) & PAGE_MASK); */
-#endif
-}
-
-void sbus_dma_sync_single_for_device(struct sbus_dev *sdev, dma_addr_t ba, size_t size, int direction)
+void sbus_unmap_sg(struct device *dev, struct scatterlist *sg, int n, int direction)
 {
-#if 0
-        unsigned long va;
-        struct resource *res;
-
-        /* We do not need the resource, just print a message if invalid. */
-        res = _sparc_find_resource(&_sparc_dvma, ba);
-        if (res == NULL)
-                panic("sbus_dma_sync_single: 0x%x\n", ba);
-
-        va = page_address(mmu_translate_dvma(ba)); /* XXX higmem */
-        /*
-         * XXX This bogosity will be fixed with the iommu rewrite coming soon
-         * to a kernel near you. - Anton
-         */
-        /* mmu_inval_dma_area(va, (size + PAGE_SIZE-1) & PAGE_MASK); */
-#endif
+        mmu_release_scsi_sgl(dev, sg, n);
 }
 
-void sbus_dma_sync_sg_for_cpu(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction)
+void sbus_dma_sync_single_for_cpu(struct device *dev, dma_addr_t ba, size_t size, int direction)
 {
-        printk("sbus_dma_sync_sg_for_cpu: not implemented yet\n");
 }
 
-void sbus_dma_sync_sg_for_device(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction)
+void sbus_dma_sync_single_for_device(struct device *dev, dma_addr_t ba, size_t size, int direction)
 {
-        printk("sbus_dma_sync_sg_for_device: not implemented yet\n");
-}
-
-/* Support code for sbus_init().  */
-/*
- * XXX This functions appears to be a distorted version of
- * prom_sbus_ranges_init(), with all sun4d stuff cut away.
- * Ask DaveM what is going on here, how is sun4d supposed to work... XXX
- */
-/* added back sun4d patch from Thomas Bogendoerfer - should be OK (crn) */
-void __init sbus_arch_bus_ranges_init(struct device_node *pn, struct sbus_bus *sbus)
-{
-        int parent_node = pn->node;
-
-        if (sparc_cpu_model == sun4d) {
-                struct linux_prom_ranges iounit_ranges[PROMREG_MAX];
-                int num_iounit_ranges, len;
-
-                len = prom_getproperty(parent_node, "ranges",
-                                       (char *) iounit_ranges,
-                                       sizeof (iounit_ranges));
-                if (len != -1) {
-                        num_iounit_ranges =
-                                (len / sizeof(struct linux_prom_ranges));
-                        prom_adjust_ranges(sbus->sbus_ranges,
-                                           sbus->num_sbus_ranges,
-                                           iounit_ranges, num_iounit_ranges);
-                }
-        }
 }
 
-void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp)
-{
-#ifndef CONFIG_SUN4
-        struct device_node *parent = dp->parent;
-
-        if (sparc_cpu_model != sun4d &&
-            parent != NULL &&
-            !strcmp(parent->name, "iommu")) {
-                extern void iommu_init(int iommu_node, struct sbus_bus *sbus);
-
-                iommu_init(parent->node, sbus);
-        }
-
-        if (sparc_cpu_model == sun4d) {
-                extern void iounit_init(int sbi_node, int iounit_node,
-                                        struct sbus_bus *sbus);
-
-                iounit_init(dp->node, parent->node, sbus);
-        }
-#endif
-}
-
-void __init sbus_setup_arch_props(struct sbus_bus *sbus, struct device_node *dp)
-{
-        if (sparc_cpu_model == sun4d) {
-                struct device_node *parent = dp->parent;
-
-                sbus->devid = of_getintprop_default(parent, "device-id", 0);
-                sbus->board = of_getintprop_default(parent, "board#", 0);
-        }
-}
-
-int __init sbus_arch_preinit(void)
+static int __init sparc_register_ioport(void)
 {
         register_proc_sparc_ioport();
 
-#ifdef CONFIG_SUN4
-        {
-                extern void sun4_dvma_init(void);
-                sun4_dvma_init();
-        }
-        return 1;
-#else
         return 0;
-#endif
 }
 
-void __init sbus_arch_postinit(void)
-{
-        if (sparc_cpu_model == sun4d) {
-                extern void sun4d_init_sbi_irq(void);
-                sun4d_init_sbi_irq();
-        }
-}
+arch_initcall(sparc_register_ioport);
+
 #endif /* CONFIG_SBUS */
 
 #ifdef CONFIG_PCI
diff --git a/arch/sparc/kernel/irq.h b/arch/sparc/kernel/irq.h
index 32ef3ebd0a8..db751388153 100644
--- a/arch/sparc/kernel/irq.h
+++ b/arch/sparc/kernel/irq.h
@@ -13,7 +13,6 @@ BTFIXUPDEF_CALL(void, enable_irq, unsigned int)
 BTFIXUPDEF_CALL(void, disable_pil_irq, unsigned int)
 BTFIXUPDEF_CALL(void, enable_pil_irq, unsigned int)
 BTFIXUPDEF_CALL(void, clear_clock_irq, void)
-BTFIXUPDEF_CALL(void, clear_profile_irq, int)
 BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int)
 
 static inline void __disable_irq(unsigned int irq)
@@ -41,11 +40,6 @@ static inline void clear_clock_irq(void)
         BTFIXUP_CALL(clear_clock_irq)();
 }
 
-static inline void clear_profile_irq(int irq)
-{
-        BTFIXUP_CALL(clear_profile_irq)(irq);
-}
-
 static inline void load_profile_irq(int cpu, int limit)
 {
         BTFIXUP_CALL(load_profile_irq)(cpu, limit);
diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c
index f58c537446a..0837bd52e28 100644
--- a/arch/sparc/kernel/of_device.c
+++ b/arch/sparc/kernel/of_device.c
@@ -29,15 +29,38 @@ struct of_device *of_find_device_by_node(struct device_node *dp)
 }
 EXPORT_SYMBOL(of_find_device_by_node);
 
-#ifdef CONFIG_PCI
-struct bus_type ebus_bus_type;
-EXPORT_SYMBOL(ebus_bus_type);
-#endif
+unsigned int irq_of_parse_and_map(struct device_node *node, int index)
+{
+        struct of_device *op = of_find_device_by_node(node);
+
+        if (!op || index >= op->num_irqs)
+                return 0;
+
+        return op->irqs[index];
+}
+EXPORT_SYMBOL(irq_of_parse_and_map);
+
+/* Take the archdata values for IOMMU, STC, and HOSTDATA found in
+ * BUS and propagate to all child of_device objects.
+ */
+void of_propagate_archdata(struct of_device *bus)
+{
+        struct dev_archdata *bus_sd = &bus->dev.archdata;
+        struct device_node *bus_dp = bus->node;
+        struct device_node *dp;
+
+        for (dp = bus_dp->child; dp; dp = dp->sibling) {
+                struct of_device *op = of_find_device_by_node(dp);
 
-#ifdef CONFIG_SBUS
-struct bus_type sbus_bus_type;
-EXPORT_SYMBOL(sbus_bus_type);
-#endif
+                op->dev.archdata.iommu = bus_sd->iommu;
+                op->dev.archdata.stc = bus_sd->stc;
+                op->dev.archdata.host_controller = bus_sd->host_controller;
+                op->dev.archdata.numa_node = bus_sd->numa_node;
+
+                if (dp->child)
+                        of_propagate_archdata(op);
+        }
+}
 
 struct bus_type of_platform_bus_type;
 EXPORT_SYMBOL(of_platform_bus_type);
@@ -327,6 +350,27 @@ static int __init build_one_resource(struct device_node *parent,
         return 1;
 }
 
+static int __init use_1to1_mapping(struct device_node *pp)
+{
+        /* If we have a ranges property in the parent, use it.  */
+        if (of_find_property(pp, "ranges", NULL) != NULL)
+                return 0;
+
+        /* Some SBUS devices use intermediate nodes to express
+         * hierarchy within the device itself.  These aren't
+         * real bus nodes, and don't have a 'ranges' property.
+         * But, we should still pass the translation work up
+         * to the SBUS itself.
+         */
+        if (!strcmp(pp->name, "dma") ||
+            !strcmp(pp->name, "espdma") ||
+            !strcmp(pp->name, "ledma") ||
+            !strcmp(pp->name, "lebuffer"))
+                return 0;
+
+        return 1;
+}
+
 static int of_resource_verbose;
 
 static void __init build_device_resources(struct of_device *op,
@@ -373,10 +417,7 @@ static void __init build_device_resources(struct of_device *op,
 
                 flags = bus->get_flags(reg, 0);
 
-                /* If the immediate parent has no ranges property to apply,
-                 * just use a 1<->1 mapping.
-                 */
-                if (of_find_property(pp, "ranges", NULL) == NULL) {
+                if (use_1to1_mapping(pp)) {
                         result = of_read_addr(addr, na);
                         goto build_res;
                 }
@@ -565,15 +606,6 @@ static int __init of_bus_driver_init(void)
         int err;
 
         err = of_bus_type_init(&of_platform_bus_type, "of");
-#ifdef CONFIG_PCI
-        if (!err)
-                err = of_bus_type_init(&ebus_bus_type, "ebus");
-#endif
-#ifdef CONFIG_SBUS
-        if (!err)
-                err = of_bus_type_init(&sbus_bus_type, "sbus");
-#endif
-
         if (!err)
                 scan_of_devices();
 
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index a6a6f982337..462584e55fb 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -17,8 +17,6 @@
 #include <linux/slab.h>
 #include <linux/jiffies.h>
 
-#include <asm/ebus.h>
-#include <asm/sbus.h> /* for sanity check... */
 #include <asm/swift.h> /* for cache flushing. */
 #include <asm/io.h>
 
@@ -430,7 +428,6 @@ static int __init pcic_init(void)
 
         pcic_pbm_scan_bus(pcic);
 
-        ebus_init();
         return 0;
 }
 
@@ -493,10 +490,6 @@ static void pcic_map_pci_device(struct linux_pcic *pcic,
                                  * do ioremap() before accessing PC-style I/O,
                                  * we supply virtual, ready to access address.
                                  *
-                                 * Ebus devices do not come here even if
-                                 * CheerIO makes a similar conversion.
-                                 * See ebus.c for details.
-                                 *
                                  * Note that request_region()
                                  * works for these devices.
                                  *
@@ -677,7 +670,7 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus)
 }
 
 /*
- * pcic_pin_to_irq() is exported to ebus.c.
+ * pcic_pin_to_irq() is exported to bus probing code
  */
 unsigned int
 pcic_pin_to_irq(unsigned int pin, const char *name)
@@ -904,11 +897,6 @@ static void pcic_enable_irq(unsigned int irq_nr)
         local_irq_restore(flags);
 }
 
-static void pcic_clear_profile_irq(int cpu)
-{
-        printk("PCIC: unimplemented code: FILE=%s LINE=%d", __FILE__, __LINE__);
-}
-
 static void pcic_load_profile_irq(int cpu, unsigned int limit)
 {
         printk("PCIC: unimplemented code: FILE=%s LINE=%d", __FILE__, __LINE__);
@@ -934,7 +922,6 @@ void __init sun4m_pci_init_IRQ(void)
         BTFIXUPSET_CALL(enable_pil_irq, pcic_enable_pil_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(disable_pil_irq, pcic_disable_pil_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(clear_clock_irq, pcic_clear_clock_irq, BTFIXUPCALL_NORM);
-        BTFIXUPSET_CALL(clear_profile_irq, pcic_clear_profile_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(load_profile_irq, pcic_load_profile_irq, BTFIXUPCALL_NORM);
 }
 
diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c
index 7eca8871ff4..2afcfab4f11 100644
--- a/arch/sparc/kernel/pmc.c
+++ b/arch/sparc/kernel/pmc.c
@@ -8,11 +8,11 @@
 #include <linux/fs.h>
 #include <linux/errno.h>
 #include <linux/init.h>
-#include <linux/miscdevice.h>
 #include <linux/pm.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/io.h>
-#include <asm/sbus.h>
 #include <asm/oplib.h>
 #include <asm/uaccess.h>
 #include <asm/auxio.h>
@@ -23,17 +23,15 @@
  * #define PMC_NO_IDLE
  */
 
-#define PMC_MINOR       MISC_DYNAMIC_MINOR
 #define PMC_OBPNAME     "SUNW,pmc"
 #define PMC_DEVNAME "pmc"
 
 #define PMC_IDLE_REG    0x00
 #define PMC_IDLE_ON             0x01
 
-volatile static u8 __iomem *regs; 
-static int pmc_regsize;
+static u8 __iomem *regs;
 
-#define pmc_readb(offs)                 (sbus_readb(regs+offs))
+#define pmc_readb(offs)         (sbus_readb(regs+offs))
 #define pmc_writeb(val, offs)   (sbus_writeb(val, regs+offs))
 
 /* 
@@ -53,31 +51,11 @@ void pmc_swift_idle(void)
 #endif
 } 
 
-static inline void pmc_free(void)
+static int __devinit pmc_probe(struct of_device *op,
+                               const struct of_device_id *match)
 {
-        sbus_iounmap(regs, pmc_regsize);
-}
-
-static int __init pmc_probe(void)
-{
-        struct sbus_bus *sbus = NULL;
-        struct sbus_dev *sdev = NULL;
-        for_each_sbus(sbus) {
-                for_each_sbusdev(sdev, sbus) {
-                        if (!strcmp(sdev->prom_name, PMC_OBPNAME)) {
-                                goto sbus_done;
-                        }
-                }
-        }
-
-sbus_done:
-        if (!sdev) {
-                return -ENODEV;
-        }
-
-        pmc_regsize = sdev->reg_addrs[0].reg_size;
-        regs = sbus_ioremap(&sdev->resource[0], 0, 
-                                   pmc_regsize, PMC_OBPNAME);
+        regs = of_ioremap(&op->resource[0], 0,
+                          resource_size(&op->resource[0]), PMC_OBPNAME);
         if (!regs) {
                 printk(KERN_ERR "%s: unable to map registers\n", PMC_DEVNAME);
                 return -ENODEV;
@@ -92,8 +70,27 @@ sbus_done:
         return 0;
 }
 
+static struct of_device_id __initdata pmc_match[] = {
+        {
+                .name = PMC_OBPNAME,
+        },
+        {},
+};
+MODULE_DEVICE_TABLE(of, pmc_match);
+
+static struct of_platform_driver pmc_driver = {
+        .name           = "pmc",
+        .match_table    = pmc_match,
+        .probe          = pmc_probe,
+};
+
+static int __init pmc_init(void)
+{
+        return of_register_driver(&pmc_driver, &of_bus_type);
+}
+
 /* This driver is not critical to the boot process
  * and is easiest to ioremap when SBus is already
  * initialized, so we install ourselves thusly:
  */
-__initcall(pmc_probe);
+__initcall(pmc_init);
diff --git a/arch/sparc/kernel/process.c b/arch/sparc/kernel/process.c
index 4bb430940a6..e8c43ffe317 100644
--- a/arch/sparc/kernel/process.c
+++ b/arch/sparc/kernel/process.c
@@ -75,7 +75,7 @@ void cpu_idle(void)
 {
         /* endless idle loop with no priority at all */
         for (;;) {
-                if (ARCH_SUN4C_SUN4) {
+                if (ARCH_SUN4C) {
                         static int count = HZ;
                         static unsigned long last_jiffies;
                         static unsigned long last_faults;
diff --git a/arch/sparc/kernel/prom.c b/arch/sparc/kernel/prom.c
index cd4fb79aa3a..eee5efcfe50 100644
--- a/arch/sparc/kernel/prom.c
+++ b/arch/sparc/kernel/prom.c
@@ -54,6 +54,9 @@ int of_getintprop_default(struct device_node *np, const char *name, int def)
 }
 EXPORT_SYMBOL(of_getintprop_default);
 
+DEFINE_MUTEX(of_set_property_mutex);
+EXPORT_SYMBOL(of_set_property_mutex);
+
 int of_set_property(struct device_node *dp, const char *name, void *val, int len)
 {
         struct property **prevp;
@@ -77,7 +80,10 @@ int of_set_property(struct device_node *dp, const char *name, void *val, int len
                         void *old_val = prop->value;
                         int ret;
 
+                        mutex_lock(&of_set_property_mutex);
                         ret = prom_setprop(dp->node, (char *) name, val, len);
+                        mutex_unlock(&of_set_property_mutex);
+
                         err = -EINVAL;
                         if (ret >= 0) {
                                 prop->value = new_val;
@@ -436,7 +442,6 @@ static void __init of_console_init(void)
 
         switch (prom_vers) {
         case PROM_V0:
-        case PROM_SUN4:
                 skip = 0;
                 switch (*romvec->pv_stdout) {
                 case PROMDEV_SCREEN:
diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c
index 9e451b21202..24fe3078bd4 100644
--- a/arch/sparc/kernel/setup.c
+++ b/arch/sparc/kernel/setup.c
@@ -213,23 +213,25 @@ void __init setup_arch(char **cmdline_p)
         /* Initialize PROM console and command line. */
         *cmdline_p = prom_getbootargs();
         strcpy(boot_command_line, *cmdline_p);
+        parse_early_param();
 
         /* Set sparc_cpu_model */
         sparc_cpu_model = sun_unknown;
-        if(!strcmp(&cputypval,"sun4 ")) { sparc_cpu_model=sun4; }
-        if(!strcmp(&cputypval,"sun4c")) { sparc_cpu_model=sun4c; }
-        if(!strcmp(&cputypval,"sun4m")) { sparc_cpu_model=sun4m; }
-        if(!strcmp(&cputypval,"sun4s")) { sparc_cpu_model=sun4m; }  /* CP-1200 with PROM 2.30 -E */
-        if(!strcmp(&cputypval,"sun4d")) { sparc_cpu_model=sun4d; }
-        if(!strcmp(&cputypval,"sun4e")) { sparc_cpu_model=sun4e; }
-        if(!strcmp(&cputypval,"sun4u")) { sparc_cpu_model=sun4u; }
-
-#ifdef CONFIG_SUN4
-        if (sparc_cpu_model != sun4) {
-                prom_printf("This kernel is for Sun4 architecture only.\n");
-                prom_halt();
-        }
-#endif
+        if (!strcmp(&cputypval,"sun4 "))
+                sparc_cpu_model = sun4;
+        if (!strcmp(&cputypval,"sun4c"))
+                sparc_cpu_model = sun4c;
+        if (!strcmp(&cputypval,"sun4m"))
+                sparc_cpu_model = sun4m;
+        if (!strcmp(&cputypval,"sun4s"))
+                sparc_cpu_model = sun4m; /* CP-1200 with PROM 2.30 -E */
+        if (!strcmp(&cputypval,"sun4d"))
+                sparc_cpu_model = sun4d;
+        if (!strcmp(&cputypval,"sun4e"))
+                sparc_cpu_model = sun4e;
+        if (!strcmp(&cputypval,"sun4u"))
+                sparc_cpu_model = sun4u;
+
         printk("ARCH: ");
         switch(sparc_cpu_model) {
         case sun4:
@@ -263,7 +265,7 @@ void __init setup_arch(char **cmdline_p)
         boot_flags_init(*cmdline_p);
 
         idprom_init();
-        if (ARCH_SUN4C_SUN4)
+        if (ARCH_SUN4C)
                 sun4c_probe_vac();
         load_mmu();
 
diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index b23cea5ca5d..b0dfff84865 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -38,17 +38,12 @@
 #include <asm/idprom.h>
 #include <asm/head.h>
 #include <asm/smp.h>
-#include <asm/mostek.h>
 #include <asm/ptrace.h>
 #include <asm/uaccess.h>
 #include <asm/checksum.h>
 #ifdef CONFIG_SBUS
-#include <asm/sbus.h>
 #include <asm/dma.h>
 #endif
-#ifdef CONFIG_PCI
-#include <asm/ebus.h>
-#endif
 #include <asm/io-unit.h>
 #include <asm/bug.h>
 
@@ -127,16 +122,11 @@ EXPORT_SYMBOL(phys_cpu_present_map);
 EXPORT_SYMBOL(__udelay);
 EXPORT_SYMBOL(__ndelay);
 EXPORT_SYMBOL(rtc_lock);
-EXPORT_SYMBOL(mostek_lock);
-EXPORT_SYMBOL(mstk48t02_regs);
 #ifdef CONFIG_SUN_AUXIO
 EXPORT_SYMBOL(set_auxio);
 EXPORT_SYMBOL(get_auxio);
 #endif
 EXPORT_SYMBOL(io_remap_pfn_range);
-  /* P3: iounit_xxx may be needed, sun4d users */
-/* EXPORT_SYMBOL(iounit_map_dma_init); */
-/* EXPORT_SYMBOL(iounit_map_dma_page); */
 
 #ifndef CONFIG_SMP
 EXPORT_SYMBOL(BTFIXUP_CALL(___xchg32));
@@ -153,24 +143,9 @@ EXPORT_SYMBOL(BTFIXUP_CALL(mmu_release_scsi_one));
 EXPORT_SYMBOL(BTFIXUP_CALL(pgprot_noncached));
 
 #ifdef CONFIG_SBUS
-EXPORT_SYMBOL(sbus_root);
-EXPORT_SYMBOL(dma_chain);
 EXPORT_SYMBOL(sbus_set_sbus64);
-EXPORT_SYMBOL(sbus_alloc_consistent);
-EXPORT_SYMBOL(sbus_free_consistent);
-EXPORT_SYMBOL(sbus_map_single);
-EXPORT_SYMBOL(sbus_unmap_single);
-EXPORT_SYMBOL(sbus_map_sg);
-EXPORT_SYMBOL(sbus_unmap_sg);
-EXPORT_SYMBOL(sbus_dma_sync_single_for_cpu);
-EXPORT_SYMBOL(sbus_dma_sync_single_for_device);
-EXPORT_SYMBOL(sbus_dma_sync_sg_for_cpu);
-EXPORT_SYMBOL(sbus_dma_sync_sg_for_device);
-EXPORT_SYMBOL(sbus_iounmap);
-EXPORT_SYMBOL(sbus_ioremap);
 #endif
 #ifdef CONFIG_PCI
-EXPORT_SYMBOL(ebus_chain);
 EXPORT_SYMBOL(insb);
 EXPORT_SYMBOL(outsb);
 EXPORT_SYMBOL(insw);
diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c
index 340fc395fe2..5dc8a576948 100644
--- a/arch/sparc/kernel/sun4c_irq.c
+++ b/arch/sparc/kernel/sun4c_irq.c
@@ -18,6 +18,8 @@
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/init.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 #include "irq.h"
 
 #include <asm/ptrace.h>
@@ -31,15 +33,8 @@
 #include <asm/traps.h>
 #include <asm/irq.h>
 #include <asm/io.h>
-#include <asm/sun4paddr.h>
 #include <asm/idprom.h>
 #include <asm/machines.h>
-#include <asm/sbus.h>
-
-#if 0
-static struct resource sun4c_timer_eb = { "sun4c_timer" };
-static struct resource sun4c_intr_eb = { "sun4c_intr" };
-#endif
 
 /*
  * Bit field defines for the interrupt registers on various
@@ -64,19 +59,7 @@ static struct resource sun4c_intr_eb = { "sun4c_intr" };
  *
  * so don't go making it static, like I tried. sigh.
  */
-unsigned char *interrupt_enable = NULL;
-
-static int sun4c_pil_map[] = { 0, 1, 2, 3, 5, 7, 8, 9 };
-
-static unsigned int sun4c_sbint_to_irq(struct sbus_dev *sdev,
-                                       unsigned int sbint)
-{
-        if (sbint >= sizeof(sun4c_pil_map)) {
-                printk(KERN_ERR "%s: bogus SBINT %d\n", sdev->prom_name, sbint);
-                BUG();
-        }
-        return sun4c_pil_map[sbint];
-}
+unsigned char __iomem *interrupt_enable = NULL;
 
 static void sun4c_disable_irq(unsigned int irq_nr)
 {
@@ -85,7 +68,7 @@ static void sun4c_disable_irq(unsigned int irq_nr)
     
         local_irq_save(flags);
         irq_nr &= (NR_IRQS - 1);
-        current_mask = *interrupt_enable;
+        current_mask = sbus_readb(interrupt_enable);
         switch(irq_nr) {
         case 1:
                 new_mask = ((current_mask) & (~(SUN4C_INT_E1)));
@@ -103,7 +86,7 @@ static void sun4c_disable_irq(unsigned int irq_nr)
                 local_irq_restore(flags);
                 return;
         }
-        *interrupt_enable = new_mask;
+        sbus_writeb(new_mask, interrupt_enable);
         local_irq_restore(flags);
 }
 
@@ -114,7 +97,7 @@ static void sun4c_enable_irq(unsigned int irq_nr)
     
         local_irq_save(flags);
         irq_nr &= (NR_IRQS - 1);
-        current_mask = *interrupt_enable;
+        current_mask = sbus_readb(interrupt_enable);
         switch(irq_nr) {
         case 1:
                 new_mask = ((current_mask) | SUN4C_INT_E1);
@@ -132,37 +115,22 @@ static void sun4c_enable_irq(unsigned int irq_nr)
                 local_irq_restore(flags);
                 return;
         }
-        *interrupt_enable = new_mask;
+        sbus_writeb(new_mask, interrupt_enable);
         local_irq_restore(flags);
 }
 
-#define TIMER_IRQ       10    /* Also at level 14, but we ignore that one. */
-#define PROFILE_IRQ     14    /* Level14 ticker.. used by OBP for polling */
-
-volatile struct sun4c_timer_info *sun4c_timers;
+struct sun4c_timer_info {
+        u32             l10_count;
+        u32             l10_limit;
+        u32             l14_count;
+        u32             l14_limit;
+};
 
-#ifdef CONFIG_SUN4
-/* This is an ugly hack to work around the
-   current timer code, and make it work with 
-   the sun4/260 intersil 
-   */
-volatile struct sun4c_timer_info sun4_timer;
-#endif
+static struct sun4c_timer_info __iomem *sun4c_timers;
 
 static void sun4c_clear_clock_irq(void)
 {
-        volatile unsigned int clear_intr;
-#ifdef CONFIG_SUN4
-        if (idprom->id_machtype == (SM_SUN4 | SM_4_260)) 
-          clear_intr = sun4_timer.timer_limit10;
-        else
-#endif
-        clear_intr = sun4c_timers->timer_limit10;
-}
-
-static void sun4c_clear_profile_irq(int cpu)
-{
-        /* Errm.. not sure how to do this.. */
+        sbus_readl(&sun4c_timers->l10_limit);
 }
 
 static void sun4c_load_profile_irq(int cpu, unsigned int limit)
@@ -172,41 +140,48 @@ static void sun4c_load_profile_irq(int cpu, unsigned int limit)
 
 static void __init sun4c_init_timers(irq_handler_t counter_fn)
 {
-        int irq;
+        const struct linux_prom_irqs *irq;
+        struct device_node *dp;
+        const u32 *addr;
+        int err;
+
+        dp = of_find_node_by_name(NULL, "counter-timer");
+        if (!dp) {
+                prom_printf("sun4c_init_timers: Unable to find counter-timer\n");
+                prom_halt();
+        }
 
-        /* Map the Timer chip, this is implemented in hardware inside
-         * the cache chip on the sun4c.
-         */
-#ifdef CONFIG_SUN4
-        if (idprom->id_machtype == (SM_SUN4 | SM_4_260))
-                sun4c_timers = &sun4_timer;
-        else
-#endif
-        sun4c_timers = ioremap(SUN_TIMER_PHYSADDR,
-            sizeof(struct sun4c_timer_info));
+        addr = of_get_property(dp, "address", NULL);
+        if (!addr) {
+                prom_printf("sun4c_init_timers: No address property\n");
+                prom_halt();
+        }
+
+        sun4c_timers = (void __iomem *) (unsigned long) addr[0];
+
+        irq = of_get_property(dp, "intr", NULL);
+        if (!irq) {
+                prom_printf("sun4c_init_timers: No intr property\n");
+                prom_halt();
+        }
 
         /* Have the level 10 timer tick at 100HZ.  We don't touch the
          * level 14 timer limit since we are letting the prom handle
          * them until we have a real console driver so L1-A works.
          */
-        sun4c_timers->timer_limit10 = (((1000000/HZ) + 1) << 10);
-        master_l10_counter = &sun4c_timers->cur_count10;
-        master_l10_limit = &sun4c_timers->timer_limit10;
+        sbus_writel((((1000000/HZ) + 1) << 10), &sun4c_timers->l10_limit);
 
-        irq = request_irq(TIMER_IRQ,
-                          counter_fn,
+        master_l10_counter = &sun4c_timers->l10_count;
+
+        err = request_irq(irq[0].pri, counter_fn,
                           (IRQF_DISABLED | SA_STATIC_ALLOC),
                           "timer", NULL);
-        if (irq) {
-                prom_printf("time_init: unable to attach IRQ%d\n",TIMER_IRQ);
+        if (err) {
+                prom_printf("sun4c_init_timers: request_irq() fails with %d\n", err);
                 prom_halt();
         }
     
-#if 0
-        /* This does not work on 4/330 */
-        sun4c_enable_irq(10);
-#endif
-        claim_ticker14(NULL, PROFILE_IRQ, 0);
+        sun4c_disable_irq(irq[1].pri);
 }
 
 #ifdef CONFIG_SMP
@@ -215,41 +190,28 @@ static void sun4c_nop(void) {}
 
 void __init sun4c_init_IRQ(void)
 {
-        struct linux_prom_registers int_regs[2];
-        int ie_node;
+        struct device_node *dp;
+        const u32 *addr;
 
-        if (ARCH_SUN4) {
-                interrupt_enable = (char *)
-                    ioremap(sun4_ie_physaddr, PAGE_SIZE);
-        } else {
-                struct resource phyres;
-
-                ie_node = prom_searchsiblings (prom_getchild(prom_root_node),
-                                        "interrupt-enable");
-                if(ie_node == 0)
-                        panic("Cannot find /interrupt-enable node");
+        dp = of_find_node_by_name(NULL, "interrupt-enable");
+        if (!dp) {
+                prom_printf("sun4c_init_IRQ: Unable to find interrupt-enable\n");
+                prom_halt();
+        }
 
-                /* Depending on the "address" property is bad news... */
-                interrupt_enable = NULL;
-                if (prom_getproperty(ie_node, "reg", (char *) int_regs,
-                                     sizeof(int_regs)) != -1) {
-                        memset(&phyres, 0, sizeof(struct resource));
-                        phyres.flags = int_regs[0].which_io;
-                        phyres.start = int_regs[0].phys_addr;
-                        interrupt_enable = (char *) sbus_ioremap(&phyres, 0,
-                            int_regs[0].reg_size, "sun4c_intr");
-                }
+        addr = of_get_property(dp, "address", NULL);
+        if (!addr) {
+                prom_printf("sun4c_init_IRQ: No address property\n");
+                prom_halt();
         }
-        if (!interrupt_enable)
-                panic("Cannot map interrupt_enable");
 
-        BTFIXUPSET_CALL(sbint_to_irq, sun4c_sbint_to_irq, BTFIXUPCALL_NORM);
+        interrupt_enable = (void __iomem *) (unsigned long) addr[0];
+
         BTFIXUPSET_CALL(enable_irq, sun4c_enable_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(disable_irq, sun4c_disable_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(enable_pil_irq, sun4c_enable_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(disable_pil_irq, sun4c_disable_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(clear_clock_irq, sun4c_clear_clock_irq, BTFIXUPCALL_NORM);
-        BTFIXUPSET_CALL(clear_profile_irq, sun4c_clear_profile_irq, BTFIXUPCALL_NOP);
         BTFIXUPSET_CALL(load_profile_irq, sun4c_load_profile_irq, BTFIXUPCALL_NOP);
         sparc_init_timers = sun4c_init_timers;
 #ifdef CONFIG_SMP
@@ -257,6 +219,6 @@ void __init sun4c_init_IRQ(void)
         BTFIXUPSET_CALL(clear_cpu_int, sun4c_nop, BTFIXUPCALL_NOP);
         BTFIXUPSET_CALL(set_irq_udt, sun4c_nop, BTFIXUPCALL_NOP);
 #endif
-        *interrupt_enable = (SUN4C_INT_ENABLE);
+        sbus_writeb(SUN4C_INT_ENABLE, interrupt_enable);
         /* Cannot enable interrupts until OBP ticker is disabled. */
 }
diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index 1290b5998f8..d3cb76ce418 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -19,6 +19,8 @@
 #include <linux/smp.h>
 #include <linux/spinlock.h>
 #include <linux/seq_file.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/ptrace.h>
 #include <asm/processor.h>
@@ -34,7 +36,6 @@
 #include <asm/io.h>
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
-#include <asm/sbus.h>
 #include <asm/sbi.h>
 #include <asm/cacheflush.h>
 #include <asm/irq_regs.h>
@@ -44,16 +45,22 @@
 /* If you trust current SCSI layer to handle different SCSI IRQs, enable this. I don't trust it... -jj */
 /* #define DISTRIBUTE_IRQS */
 
-struct sun4d_timer_regs *sun4d_timers;
+struct sun4d_timer_regs {
+        u32     l10_timer_limit;
+        u32     l10_cur_countx;
+        u32     l10_limit_noclear;
+        u32     ctrl;
+        u32     l10_cur_count;
+};
+
+static struct sun4d_timer_regs __iomem *sun4d_timers;
+
 #define TIMER_IRQ       10
 
 #define MAX_STATIC_ALLOC        4
 extern struct irqaction static_irqaction[MAX_STATIC_ALLOC];
 extern int static_irq_count;
-unsigned char cpu_leds[32];
-#ifdef CONFIG_SMP
 static unsigned char sbus_tid[32];
-#endif
 
 static struct irqaction *irq_action[NR_IRQS];
 extern spinlock_t irq_action_lock;
@@ -72,9 +79,9 @@ static int sbus_to_pil[] = {
 };
 
 static int nsbi;
-#ifdef CONFIG_SMP
+
+/* Exported for sun4d_smp.c */
 DEFINE_SPINLOCK(sun4d_imsk_lock);
-#endif
 
 int show_sun4d_interrupts(struct seq_file *p, void *v)
 {
@@ -257,26 +264,6 @@ void sun4d_handler_irq(int irq, struct pt_regs * regs)
         set_irq_regs(old_regs);
 }
 
-unsigned int sun4d_build_irq(struct sbus_dev *sdev, int irq)
-{
-        int sbusl = pil_to_sbus[irq];
-
-        if (sbusl)
-                return ((sdev->bus->board + 1) << 5) + (sbusl << 2) + sdev->slot;
-        else
-                return irq;
-}
-
-static unsigned int sun4d_sbint_to_irq(struct sbus_dev *sdev,
-                                       unsigned int sbint)
-{
-        if (sbint >= sizeof(sbus_to_pil)) {
-                printk(KERN_ERR "%s: bogus SBINT %d\n", sdev->prom_name, sbint);
-                BUG();
-        }
-        return sun4d_build_irq(sdev, sbus_to_pil[sbint]);
-}
-
 int sun4d_request_irq(unsigned int irq,
                 irq_handler_t handler,
                 unsigned long irqflags, const char * devname, void *dev_id)
@@ -360,36 +347,28 @@ out:
 
 static void sun4d_disable_irq(unsigned int irq)
 {
-#ifdef CONFIG_SMP
         int tid = sbus_tid[(irq >> 5) - 1];
         unsigned long flags;
-#endif  
         
-        if (irq < NR_IRQS) return;
-#ifdef CONFIG_SMP
+        if (irq < NR_IRQS)
+                return;
+
         spin_lock_irqsave(&sun4d_imsk_lock, flags);
         cc_set_imsk_other(tid, cc_get_imsk_other(tid) | (1 << sbus_to_pil[(irq >> 2) & 7]));
         spin_unlock_irqrestore(&sun4d_imsk_lock, flags);
-#else           
-        cc_set_imsk(cc_get_imsk() | (1 << sbus_to_pil[(irq >> 2) & 7]));
-#endif
 }
 
 static void sun4d_enable_irq(unsigned int irq)
 {
-#ifdef CONFIG_SMP
         int tid = sbus_tid[(irq >> 5) - 1];
         unsigned long flags;
-#endif  
         
-        if (irq < NR_IRQS) return;
-#ifdef CONFIG_SMP
+        if (irq < NR_IRQS)
+                return;
+
         spin_lock_irqsave(&sun4d_imsk_lock, flags);
         cc_set_imsk_other(tid, cc_get_imsk_other(tid) & ~(1 << sbus_to_pil[(irq >> 2) & 7]));
         spin_unlock_irqrestore(&sun4d_imsk_lock, flags);
-#else           
-        cc_set_imsk(cc_get_imsk() & ~(1 << sbus_to_pil[(irq >> 2) & 7]));
-#endif
 }
 
 #ifdef CONFIG_SMP
@@ -409,47 +388,55 @@ static void sun4d_set_udt(int cpu)
 /* Setup IRQ distribution scheme. */
 void __init sun4d_distribute_irqs(void)
 {
+        struct device_node *dp;
+
 #ifdef DISTRIBUTE_IRQS
-        struct sbus_bus *sbus;
-        unsigned long sbus_serving_map;
+        cpumask_t sbus_serving_map;
 
         sbus_serving_map = cpu_present_map;
-        for_each_sbus(sbus) {
-                if ((sbus->board * 2) == boot_cpu_id && (cpu_present_map & (1 << (sbus->board * 2 + 1))))
-                        sbus_tid[sbus->board] = (sbus->board * 2 + 1);
-                else if (cpu_present_map & (1 << (sbus->board * 2)))
-                        sbus_tid[sbus->board] = (sbus->board * 2);
-                else if (cpu_present_map & (1 << (sbus->board * 2 + 1)))
-                        sbus_tid[sbus->board] = (sbus->board * 2 + 1);
+        for_each_node_by_name(dp, "sbi") {
+                int board = of_getintprop_default(dp, "board#", 0);
+
+                if ((board * 2) == boot_cpu_id && cpu_isset(board * 2 + 1, cpu_present_map))
+                        sbus_tid[board] = (board * 2 + 1);
+                else if (cpu_isset(board * 2, cpu_present_map))
+                        sbus_tid[board] = (board * 2);
+                else if (cpu_isset(board * 2 + 1, cpu_present_map))
+                        sbus_tid[board] = (board * 2 + 1);
                 else
-                        sbus_tid[sbus->board] = 0xff;
-                if (sbus_tid[sbus->board] != 0xff)
-                        sbus_serving_map &= ~(1 << sbus_tid[sbus->board]);
+                        sbus_tid[board] = 0xff;
+                if (sbus_tid[board] != 0xff)
+                        cpu_clear(sbus_tid[board], sbus_serving_map);
         }
-        for_each_sbus(sbus)
-                if (sbus_tid[sbus->board] == 0xff) {
+        for_each_node_by_name(dp, "sbi") {
+                int board = of_getintprop_default(dp, "board#", 0);
+                if (sbus_tid[board] == 0xff) {
                         int i = 31;
                                 
-                        if (!sbus_serving_map)
+                        if (cpus_empty(sbus_serving_map))
                                 sbus_serving_map = cpu_present_map;
-                        while (!(sbus_serving_map & (1 << i)))
+                        while (cpu_isset(i, sbus_serving_map))
                                 i--;
-                        sbus_tid[sbus->board] = i;
-                        sbus_serving_map &= ~(1 << i);
+                        sbus_tid[board] = i;
+                        cpu_clear(i, sbus_serving_map);
                 }
-        for_each_sbus(sbus) {
-                printk("sbus%d IRQs directed to CPU%d\n", sbus->board, sbus_tid[sbus->board]);
-                set_sbi_tid(sbus->devid, sbus_tid[sbus->board] << 3);
+        }
+        for_each_node_by_name(dp, "sbi") {
+                int devid = of_getintprop_default(dp, "device-id", 0);
+                int board = of_getintprop_default(dp, "board#", 0);
+                printk("sbus%d IRQs directed to CPU%d\n", board, sbus_tid[board]);
+                set_sbi_tid(devid, sbus_tid[board] << 3);
         }
 #else
-        struct sbus_bus *sbus;
         int cpuid = cpu_logical_map(1);
 
         if (cpuid == -1)
                 cpuid = cpu_logical_map(0);
-        for_each_sbus(sbus) {
-                sbus_tid[sbus->board] = cpuid;
-                set_sbi_tid(sbus->devid, cpuid << 3);
+        for_each_node_by_name(dp, "sbi") {
+                int devid = of_getintprop_default(dp, "device-id", 0);
+                int board = of_getintprop_default(dp, "board#", 0);
+                sbus_tid[board] = cpuid;
+                set_sbi_tid(devid, cpuid << 3);
         }
         printk("All sbus IRQs directed to CPU%d\n", cpuid);
 #endif
@@ -458,13 +445,7 @@ void __init sun4d_distribute_irqs(void)
  
 static void sun4d_clear_clock_irq(void)
 {
-        volatile unsigned int clear_intr;
-        clear_intr = sun4d_timers->l10_timer_limit;
-}
-
-static void sun4d_clear_profile_irq(int cpu)
-{
-        bw_get_prof_limit(cpu);
+        sbus_readl(&sun4d_timers->l10_timer_limit);
 }
 
 static void sun4d_load_profile_irq(int cpu, unsigned int limit)
@@ -472,98 +453,121 @@ static void sun4d_load_profile_irq(int cpu, unsigned int limit)
         bw_set_prof_limit(cpu, limit);
 }
 
-static void __init sun4d_init_timers(irq_handler_t counter_fn)
+static void __init sun4d_load_profile_irqs(void)
 {
-        int irq;
-        int cpu;
-        struct resource r;
-        int mid;
+        int cpu = 0, mid;
 
-        /* Map the User Timer registers. */
-        memset(&r, 0, sizeof(r));
+        while (!cpu_find_by_instance(cpu, NULL, &mid)) {
+                sun4d_load_profile_irq(mid >> 3, 0);
+                cpu++;
+        }
+}
+
+static void __init sun4d_fixup_trap_table(void)
+{
 #ifdef CONFIG_SMP
-        r.start = CSR_BASE(boot_cpu_id)+BW_TIMER_LIMIT;
-#else
-        r.start = CSR_BASE(0)+BW_TIMER_LIMIT;
+        unsigned long flags;
+        extern unsigned long lvl14_save[4];
+        struct tt_entry *trap_table = &sparc_ttable[SP_TRAP_IRQ1 + (14 - 1)];
+        extern unsigned int real_irq_entry[], smp4d_ticker[];
+        extern unsigned int patchme_maybe_smp_msg[];
+
+        /* Adjust so that we jump directly to smp4d_ticker */
+        lvl14_save[2] += smp4d_ticker - real_irq_entry;
+
+        /* For SMP we use the level 14 ticker, however the bootup code
+         * has copied the firmware's level 14 vector into the boot cpu's
+         * trap table, we must fix this now or we get squashed.
+         */
+        local_irq_save(flags);
+        patchme_maybe_smp_msg[0] = 0x01000000; /* NOP out the branch */
+        trap_table->inst_one = lvl14_save[0];
+        trap_table->inst_two = lvl14_save[1];
+        trap_table->inst_three = lvl14_save[2];
+        trap_table->inst_four = lvl14_save[3];
+        local_flush_cache_all();
+        local_irq_restore(flags);
 #endif
-        r.flags = 0xf;
-        sun4d_timers = (struct sun4d_timer_regs *) sbus_ioremap(&r, 0,
-            PAGE_SIZE, "user timer");
+}
 
-        sun4d_timers->l10_timer_limit =  (((1000000/HZ) + 1) << 10);
-        master_l10_counter = &sun4d_timers->l10_cur_count;
-        master_l10_limit = &sun4d_timers->l10_timer_limit;
+static void __init sun4d_init_timers(irq_handler_t counter_fn)
+{
+        struct device_node *dp;
+        struct resource res;
+        const u32 *reg;
+        int err;
+
+        dp = of_find_node_by_name(NULL, "cpu-unit");
+        if (!dp) {
+                prom_printf("sun4d_init_timers: Unable to find cpu-unit\n");
+                prom_halt();
+        }
 
-        irq = request_irq(TIMER_IRQ,
-                          counter_fn,
-                          (IRQF_DISABLED | SA_STATIC_ALLOC),
-                          "timer", NULL);
-        if (irq) {
-                prom_printf("time_init: unable to attach IRQ%d\n",TIMER_IRQ);
+        /* Which cpu-unit we use is arbitrary, we can view the bootbus timer
+         * registers via any cpu's mapping.  The first 'reg' property is the
+         * bootbus.
+         */
+        reg = of_get_property(dp, "reg", NULL);
+        if (!reg) {
+                prom_printf("sun4d_init_timers: No reg property\n");
                 prom_halt();
         }
-        
-        /* Enable user timer free run for CPU 0 in BW */
-        /* bw_set_ctrl(0, bw_get_ctrl(0) | BW_CTRL_USER_TIMER); */
 
-        cpu = 0;
-        while (!cpu_find_by_instance(cpu, NULL, &mid)) {
-                sun4d_load_profile_irq(mid >> 3, 0);
-                cpu++;
+        res.start = reg[1];
+        res.end = reg[2] - 1;
+        res.flags = reg[0] & 0xff;
+        sun4d_timers = of_ioremap(&res, BW_TIMER_LIMIT,
+                                  sizeof(struct sun4d_timer_regs), "user timer");
+        if (!sun4d_timers) {
+                prom_printf("sun4d_init_timers: Can't map timer regs\n");
+                prom_halt();
         }
-                
-#ifdef CONFIG_SMP
-        {
-                unsigned long flags;
-                extern unsigned long lvl14_save[4];
-                struct tt_entry *trap_table = &sparc_ttable[SP_TRAP_IRQ1 + (14 - 1)];
-                extern unsigned int real_irq_entry[], smp4d_ticker[];
-                extern unsigned int patchme_maybe_smp_msg[];
-
-                /* Adjust so that we jump directly to smp4d_ticker */
-                lvl14_save[2] += smp4d_ticker - real_irq_entry;
-
-                /* For SMP we use the level 14 ticker, however the bootup code
-                 * has copied the firmware's level 14 vector into the boot cpu's
-                 * trap table, we must fix this now or we get squashed.
-                 */
-                local_irq_save(flags);
-                patchme_maybe_smp_msg[0] = 0x01000000; /* NOP out the branch */
-                trap_table->inst_one = lvl14_save[0];
-                trap_table->inst_two = lvl14_save[1];
-                trap_table->inst_three = lvl14_save[2];
-                trap_table->inst_four = lvl14_save[3];
-                local_flush_cache_all();
-                local_irq_restore(flags);
+
+        sbus_writel((((1000000/HZ) + 1) << 10), &sun4d_timers->l10_timer_limit);
+
+        master_l10_counter = &sun4d_timers->l10_cur_count;
+
+        err = request_irq(TIMER_IRQ, counter_fn,
+                          (IRQF_DISABLED | SA_STATIC_ALLOC),
+                          "timer", NULL);
+        if (err) {
+                prom_printf("sun4d_init_timers: request_irq() failed with %d\n", err);
+                prom_halt();
         }
-#endif
+        sun4d_load_profile_irqs();
+        sun4d_fixup_trap_table();
 }
 
 void __init sun4d_init_sbi_irq(void)
 {
-        struct sbus_bus *sbus;
-        unsigned mask;
+        struct device_node *dp;
+        int target_cpu = 0;
+
+#ifdef CONFIG_SMP
+        target_cpu = boot_cpu_id;
+#endif
 
         nsbi = 0;
-        for_each_sbus(sbus)
+        for_each_node_by_name(dp, "sbi")
                 nsbi++;
         sbus_actions = kzalloc (nsbi * 8 * 4 * sizeof(struct sbus_action), GFP_ATOMIC);
         if (!sbus_actions) {
                 prom_printf("SUN4D: Cannot allocate sbus_actions, halting.\n");
                 prom_halt();
         }
-        for_each_sbus(sbus) {
-#ifdef CONFIG_SMP       
-                extern unsigned char boot_cpu_id;
-                
-                set_sbi_tid(sbus->devid, boot_cpu_id << 3);
-                sbus_tid[sbus->board] = boot_cpu_id;
-#endif
+        for_each_node_by_name(dp, "sbi") {
+                int devid = of_getintprop_default(dp, "device-id", 0);
+                int board = of_getintprop_default(dp, "board#", 0);
+                unsigned int mask;
+
+                set_sbi_tid(devid, target_cpu << 3);
+                sbus_tid[board] = target_cpu;
+
                 /* Get rid of pending irqs from PROM */
-                mask = acquire_sbi(sbus->devid, 0xffffffff);
+                mask = acquire_sbi(devid, 0xffffffff);
                 if (mask) {
-                        printk ("Clearing pending IRQs %08x on SBI %d\n", mask, sbus->board);
-                        release_sbi(sbus->devid, mask);
+                        printk ("Clearing pending IRQs %08x on SBI %d\n", mask, board);
+                        release_sbi(devid, mask);
                 }
         }
 }
@@ -572,11 +576,9 @@ void __init sun4d_init_IRQ(void)
 {
         local_irq_disable();
 
-        BTFIXUPSET_CALL(sbint_to_irq, sun4d_sbint_to_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(enable_irq, sun4d_enable_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(disable_irq, sun4d_disable_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(clear_clock_irq, sun4d_clear_clock_irq, BTFIXUPCALL_NORM);
-        BTFIXUPSET_CALL(clear_profile_irq, sun4d_clear_profile_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(load_profile_irq, sun4d_load_profile_irq, BTFIXUPCALL_NORM);
         sparc_init_timers = sun4d_init_timers;
 #ifdef CONFIG_SMP
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index 446767e8f56..ce3d45db94e 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -30,7 +30,6 @@
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
 #include <asm/oplib.h>
-#include <asm/sbus.h>
 #include <asm/sbi.h>
 #include <asm/tlbflush.h>
 #include <asm/cacheflush.h>
@@ -72,6 +71,17 @@ static void smp_setup_percpu_timer(void);
 extern void cpu_probe(void);
 extern void sun4d_distribute_irqs(void);
 
+static unsigned char cpu_leds[32];
+
+static inline void show_leds(int cpuid)
+{
+        cpuid &= 0x1e;
+        __asm__ __volatile__ ("stba %0, [%1] %2" : :
+                              "r" ((cpu_leds[cpuid] << 4) | cpu_leds[cpuid+1]),
+                              "r" (ECSR_BASE(cpuid) | BB_LEDS),
+                              "i" (ASI_M_CTL));
+}
+
 void __init smp4d_callin(void)
 {
         int cpuid = hard_smp4d_processor_id();
diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index 94e02de960e..f10317179ee 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -20,6 +20,8 @@
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/ptrace.h>
 #include <asm/processor.h>
@@ -35,59 +37,27 @@
 #include <asm/smp.h>
 #include <asm/irq.h>
 #include <asm/io.h>
-#include <asm/sbus.h>
 #include <asm/cacheflush.h>
 
 #include "irq.h"
 
-/* On the sun4m, just like the timers, we have both per-cpu and master
- * interrupt registers.
- */
-
-/* These registers are used for sending/receiving irqs from/to
- * different cpu's.
- */
-struct sun4m_intreg_percpu {
-        unsigned int tbt;        /* Interrupts still pending for this cpu. */
-
-        /* These next two registers are WRITE-ONLY and are only
-         * "on bit" sensitive, "off bits" written have NO affect.
-         */
-        unsigned int clear;  /* Clear this cpus irqs here. */
-        unsigned int set;    /* Set this cpus irqs here. */
-        unsigned char space[PAGE_SIZE - 12];
+struct sun4m_irq_percpu {
+        u32             pending;
+        u32             clear;
+        u32             set;
 };
 
-/*
- * djhr
- * Actually the clear and set fields in this struct are misleading..
- * according to the SLAVIO manual (and the same applies for the SEC)
- * the clear field clears bits in the mask which will ENABLE that IRQ
- * the set field sets bits in the mask to DISABLE the IRQ.
- *
- * Also the undirected_xx address in the SLAVIO is defined as
- * RESERVED and write only..
- *
- * DAVEM_NOTE: The SLAVIO only specifies behavior on uniprocessor
- *             sun4m machines, for MP the layout makes more sense.
- */
-struct sun4m_intregs {
-        struct sun4m_intreg_percpu cpu_intregs[SUN4M_NCPUS];
-        unsigned int tbt;                /* IRQ's that are still pending. */
-        unsigned int irqs;               /* Master IRQ bits. */
-
-        /* Again, like the above, two these registers are WRITE-ONLY. */
-        unsigned int clear;              /* Clear master IRQ's by setting bits here. */
-        unsigned int set;                /* Set master IRQ's by setting bits here. */
-
-        /* This register is both READ and WRITE. */
-        unsigned int undirected_target;  /* Which cpu gets undirected irqs. */
+struct sun4m_irq_global {
+        u32             pending;
+        u32             mask;
+        u32             mask_clear;
+        u32             mask_set;
+        u32             interrupt_target;
 };
 
-static unsigned long dummy;
-
-struct sun4m_intregs *sun4m_interrupts;
-unsigned long *irq_rcvreg = &dummy;
+/* Code in entry.S needs to get at these register mappings.  */
+struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS];
+struct sun4m_irq_global __iomem *sun4m_irq_global;
 
 /* Dave Redman (djhr@tadpole.co.uk)
  * The sun4m interrupt registers.
@@ -101,8 +71,9 @@ unsigned long *irq_rcvreg = &dummy;
 
 #define SUN4M_INT_MASKALL       0x80000000        /* mask all interrupts */
 #define SUN4M_INT_MODULE_ERR    0x40000000        /* module error */
-#define SUN4M_INT_M2S_WRITE     0x20000000        /* write buffer error */
-#define SUN4M_INT_ECC           0x10000000        /* ecc memory error */
+#define SUN4M_INT_M2S_WRITE_ERR 0x20000000        /* write buffer error */
+#define SUN4M_INT_ECC_ERR       0x10000000        /* ecc memory error */
+#define SUN4M_INT_VME_ERR       0x08000000        /* vme async error */
 #define SUN4M_INT_FLOPPY        0x00400000        /* floppy disk */
 #define SUN4M_INT_MODULE        0x00200000        /* module interrupt */
 #define SUN4M_INT_VIDEO         0x00100000        /* onboard video */
@@ -113,75 +84,126 @@ unsigned long *irq_rcvreg = &dummy;
 #define SUN4M_INT_SERIAL        0x00008000        /* serial ports */
 #define SUN4M_INT_KBDMS         0x00004000        /* keyboard/mouse */
 #define SUN4M_INT_SBUSBITS      0x00003F80        /* sbus int bits */
+#define SUN4M_INT_VMEBITS       0x0000007F        /* vme int bits */
+
+#define SUN4M_INT_ERROR         (SUN4M_INT_MODULE_ERR |    \
+                                 SUN4M_INT_M2S_WRITE_ERR | \
+                                 SUN4M_INT_ECC_ERR |       \
+                                 SUN4M_INT_VME_ERR)
 
 #define SUN4M_INT_SBUS(x)       (1 << (x+7))
 #define SUN4M_INT_VME(x)        (1 << (x))
 
-/* These tables only apply for interrupts greater than 15..
- * 
- * any intr value below 0x10 is considered to be a soft-int
- * this may be useful or it may not.. but that's how I've done it.
- * and it won't clash with what OBP is telling us about devices.
+/* Interrupt levels used by OBP */
+#define OBP_INT_LEVEL_SOFT      0x10
+#define OBP_INT_LEVEL_ONBOARD   0x20
+#define OBP_INT_LEVEL_SBUS      0x30
+#define OBP_INT_LEVEL_VME       0x40
+
+/* Interrupt level assignment on sun4m:
+ *
+ *      level           source
+ * ------------------------------------------------------------
+ *        1             softint-1
+ *        2             softint-2, VME/SBUS level 1
+ *        3             softint-3, VME/SBUS level 2
+ *        4             softint-4, onboard SCSI
+ *        5             softint-5, VME/SBUS level 3
+ *        6             softint-6, onboard ETHERNET
+ *        7             softint-7, VME/SBUS level 4
+ *        8             softint-8, onboard VIDEO
+ *        9             softint-9, VME/SBUS level 5, Module Interrupt
+ *       10             softint-10, system counter/timer
+ *       11             softint-11, VME/SBUS level 6, Floppy
+ *       12             softint-12, Keyboard/Mouse, Serial
+ *       13             softint-13, VME/SBUS level 7, ISDN Audio
+ *       14             softint-14, per-processor counter/timer
+ *       15             softint-15, Asynchronous Errors (broadcast)
  *
- * take an encoded intr value and lookup if it's valid
- * then get the mask bits that match from irq_mask
+ * Each interrupt source is masked distinctly in the sun4m interrupt
+ * registers.  The PIL level alone is therefore ambiguous, since multiple
+ * interrupt sources map to a single PIL.
  *
- * P3: Translation from irq 0x0d to mask 0x2000 is for MrCoffee.
+ * This ambiguity is resolved in the 'intr' property for device nodes
+ * in the OF device tree.  Each 'intr' property entry is composed of
+ * two 32-bit words.  The first word is the IRQ priority value, which
+ * is what we're intersted in.  The second word is the IRQ vector, which
+ * is unused.
+ *
+ * The low 4 bits of the IRQ priority indicate the PIL, and the upper
+ * 4 bits indicate onboard vs. SBUS leveled vs. VME leveled.  0x20
+ * means onboard, 0x30 means SBUS leveled, and 0x40 means VME leveled.
+ *
+ * For example, an 'intr' IRQ priority value of 0x24 is onboard SCSI
+ * whereas a value of 0x33 is SBUS level 2.  Here are some sample
+ * 'intr' property IRQ priority values from ss4, ss5, ss10, ss20, and
+ * Tadpole S3 GX systems.
+ *
+ * esp:         0x24    onboard ESP SCSI
+ * le:          0x26    onboard Lance ETHERNET
+ * p9100:       0x32    SBUS level 1 P9100 video
+ * bpp:         0x33    SBUS level 2 BPP parallel port device
+ * DBRI:        0x39    SBUS level 5 DBRI ISDN audio
+ * SUNW,leo:    0x39    SBUS level 5 LEO video
+ * pcmcia:      0x3b    SBUS level 6 PCMCIA controller
+ * uctrl:       0x3b    SBUS level 6 UCTRL device
+ * modem:       0x3d    SBUS level 7 MODEM
+ * zs:          0x2c    onboard keyboard/mouse/serial
+ * floppy:      0x2b    onboard Floppy
+ * power:       0x22    onboard power device (XXX unknown mask bit XXX)
  */
-static unsigned char irq_xlate[32] = {
-    /*  0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  a,  b,  c,  d,  e,  f */
-        0,  0,  0,  0,  1,  0,  2,  0,  3,  0,  4,  5,  6, 14,  0,  7,
-        0,  0,  8,  9,  0, 10,  0, 11,  0, 12,  0, 13,  0, 14,  0,  0
-};
 
-static unsigned long irq_mask[] = {
-        0,                                                /* illegal index */
-        SUN4M_INT_SCSI,                                   /*  1 irq 4 */
-        SUN4M_INT_ETHERNET,                               /*  2 irq 6 */
-        SUN4M_INT_VIDEO,                                  /*  3 irq 8 */
-        SUN4M_INT_REALTIME,                               /*  4 irq 10 */
-        SUN4M_INT_FLOPPY,                                 /*  5 irq 11 */
-        (SUN4M_INT_SERIAL | SUN4M_INT_KBDMS),             /*  6 irq 12 */
-        SUN4M_INT_MODULE_ERR,                             /*  7 irq 15 */
-        SUN4M_INT_SBUS(0),                                /*  8 irq 2 */
-        SUN4M_INT_SBUS(1),                                /*  9 irq 3 */
-        SUN4M_INT_SBUS(2),                                /* 10 irq 5 */
-        SUN4M_INT_SBUS(3),                                /* 11 irq 7 */
-        SUN4M_INT_SBUS(4),                                /* 12 irq 9 */
-        SUN4M_INT_SBUS(5),                                /* 13 irq 11 */
-        SUN4M_INT_SBUS(6)                                 /* 14 irq 13 */
+static unsigned long irq_mask[0x50] = {
+        /* SMP */
+        0,  SUN4M_SOFT_INT(1),
+        SUN4M_SOFT_INT(2),  SUN4M_SOFT_INT(3),
+        SUN4M_SOFT_INT(4),  SUN4M_SOFT_INT(5),
+        SUN4M_SOFT_INT(6),  SUN4M_SOFT_INT(7),
+        SUN4M_SOFT_INT(8),  SUN4M_SOFT_INT(9),
+        SUN4M_SOFT_INT(10), SUN4M_SOFT_INT(11),
+        SUN4M_SOFT_INT(12), SUN4M_SOFT_INT(13),
+        SUN4M_SOFT_INT(14), SUN4M_SOFT_INT(15),
+        /* soft */
+        0,  SUN4M_SOFT_INT(1),
+        SUN4M_SOFT_INT(2),  SUN4M_SOFT_INT(3),
+        SUN4M_SOFT_INT(4),  SUN4M_SOFT_INT(5),
+        SUN4M_SOFT_INT(6),  SUN4M_SOFT_INT(7),
+        SUN4M_SOFT_INT(8),  SUN4M_SOFT_INT(9),
+        SUN4M_SOFT_INT(10), SUN4M_SOFT_INT(11),
+        SUN4M_SOFT_INT(12), SUN4M_SOFT_INT(13),
+        SUN4M_SOFT_INT(14), SUN4M_SOFT_INT(15),
+        /* onboard */
+        0, 0, 0, 0,
+        SUN4M_INT_SCSI,  0, SUN4M_INT_ETHERNET, 0,
+        SUN4M_INT_VIDEO, SUN4M_INT_MODULE,
+        SUN4M_INT_REALTIME, SUN4M_INT_FLOPPY,
+        (SUN4M_INT_SERIAL | SUN4M_INT_KBDMS),
+        SUN4M_INT_AUDIO, 0, SUN4M_INT_MODULE_ERR,
+        /* sbus */
+        0, 0, SUN4M_INT_SBUS(0), SUN4M_INT_SBUS(1),
+        0, SUN4M_INT_SBUS(2), 0, SUN4M_INT_SBUS(3),
+        0, SUN4M_INT_SBUS(4), 0, SUN4M_INT_SBUS(5),
+        0, SUN4M_INT_SBUS(6), 0, 0,
+        /* vme */
+        0, 0, SUN4M_INT_VME(0), SUN4M_INT_VME(1),
+        0, SUN4M_INT_VME(2), 0, SUN4M_INT_VME(3),
+        0, SUN4M_INT_VME(4), 0, SUN4M_INT_VME(5),
+        0, SUN4M_INT_VME(6), 0, 0
 };
 
-static int sun4m_pil_map[] = { 0, 2, 3, 5, 7, 9, 11, 13 };
-
-static unsigned int sun4m_sbint_to_irq(struct sbus_dev *sdev,
-                                       unsigned int sbint)
-{
-        if (sbint >= sizeof(sun4m_pil_map)) {
-                printk(KERN_ERR "%s: bogus SBINT %d\n", sdev->prom_name, sbint);
-                BUG();
-        }
-        return sun4m_pil_map[sbint] | 0x30;
-}
-
 static unsigned long sun4m_get_irqmask(unsigned int irq)
 {
         unsigned long mask;
     
-        if (irq > 0x20) {
-                /* OBIO/SBUS interrupts */
-                irq &= 0x1f;
-                mask = irq_mask[irq_xlate[irq]];
-                if (!mask)
-                        printk("sun4m_get_irqmask: IRQ%d has no valid mask!\n",irq);
-        } else {
-                /* Soft Interrupts will come here.
-                 * Currently there is no way to trigger them but I'm sure
-                 * something could be cooked up.
-                 */
-                irq &= 0xf;
-                mask = SUN4M_SOFT_INT(irq);
-        }
+        if (irq < 0x50)
+                mask = irq_mask[irq];
+        else
+                mask = 0;
+
+        if (!mask)
+                printk(KERN_ERR "sun4m_get_irqmask: IRQ%d has no valid mask!\n",
+                       irq);
+
         return mask;
 }
 
@@ -193,9 +215,9 @@ static void sun4m_disable_irq(unsigned int irq_nr)
         mask = sun4m_get_irqmask(irq_nr);
         local_irq_save(flags);
         if (irq_nr > 15)
-                sun4m_interrupts->set = mask;
+                sbus_writel(mask, &sun4m_irq_global->mask_set);
         else
-                sun4m_interrupts->cpu_intregs[cpu].set = mask;
+                sbus_writel(mask, &sun4m_irq_percpu[cpu]->set);
         local_irq_restore(flags);    
 }
 
@@ -212,13 +234,13 @@ static void sun4m_enable_irq(unsigned int irq_nr)
                 mask = sun4m_get_irqmask(irq_nr);
                 local_irq_save(flags);
                 if (irq_nr > 15)
-                        sun4m_interrupts->clear = mask;
+                        sbus_writel(mask, &sun4m_irq_global->mask_clear);
                 else
-                        sun4m_interrupts->cpu_intregs[cpu].clear = mask;
+                        sbus_writel(mask, &sun4m_irq_percpu[cpu]->clear);
                 local_irq_restore(flags);    
         } else {
                 local_irq_save(flags);
-                sun4m_interrupts->clear = SUN4M_INT_FLOPPY;
+                sbus_writel(SUN4M_INT_FLOPPY, &sun4m_irq_global->mask_clear);
                 local_irq_restore(flags);
         }
 }
@@ -236,10 +258,10 @@ static unsigned long cpu_pil_to_imask[16] = {
 /*9*/   SUN4M_INT_SBUS(4) | SUN4M_INT_VME(4) | SUN4M_INT_MODULE_ERR,
 /*10*/  SUN4M_INT_REALTIME,
 /*11*/  SUN4M_INT_SBUS(5) | SUN4M_INT_VME(5) | SUN4M_INT_FLOPPY,
-/*12*/  SUN4M_INT_SERIAL | SUN4M_INT_KBDMS,
-/*13*/  SUN4M_INT_AUDIO,
+/*12*/  SUN4M_INT_SERIAL  | SUN4M_INT_KBDMS,
+/*13*/  SUN4M_INT_SBUS(6) | SUN4M_INT_VME(6) | SUN4M_INT_AUDIO,
 /*14*/  SUN4M_INT_E14,
-/*15*/  0x00000000
+/*15*/  SUN4M_INT_ERROR
 };
 
 /* We assume the caller has disabled local interrupts when these are called,
@@ -247,126 +269,141 @@ static unsigned long cpu_pil_to_imask[16] = {
  */
 static void sun4m_disable_pil_irq(unsigned int pil)
 {
-        sun4m_interrupts->set = cpu_pil_to_imask[pil];
+        sbus_writel(cpu_pil_to_imask[pil], &sun4m_irq_global->mask_set);
 }
 
 static void sun4m_enable_pil_irq(unsigned int pil)
 {
-        sun4m_interrupts->clear = cpu_pil_to_imask[pil];
+        sbus_writel(cpu_pil_to_imask[pil], &sun4m_irq_global->mask_clear);
 }
 
 #ifdef CONFIG_SMP
 static void sun4m_send_ipi(int cpu, int level)
 {
-        unsigned long mask;
-
-        mask = sun4m_get_irqmask(level);
-        sun4m_interrupts->cpu_intregs[cpu].set = mask;
+        unsigned long mask = sun4m_get_irqmask(level);
+        sbus_writel(mask, &sun4m_irq_percpu[cpu]->set);
 }
 
 static void sun4m_clear_ipi(int cpu, int level)
 {
-        unsigned long mask;
-
-        mask = sun4m_get_irqmask(level);
-        sun4m_interrupts->cpu_intregs[cpu].clear = mask;
+        unsigned long mask = sun4m_get_irqmask(level);
+        sbus_writel(mask, &sun4m_irq_percpu[cpu]->clear);
 }
 
 static void sun4m_set_udt(int cpu)
 {
-        sun4m_interrupts->undirected_target = cpu;
+        sbus_writel(cpu, &sun4m_irq_global->interrupt_target);
 }
 #endif
 
-#define OBIO_INTR       0x20
-#define TIMER_IRQ       (OBIO_INTR | 10)
-#define PROFILE_IRQ     (OBIO_INTR | 14)
+struct sun4m_timer_percpu {
+        u32             l14_limit;
+        u32             l14_count;
+        u32             l14_limit_noclear;
+        u32             user_timer_start_stop;
+};
+
+static struct sun4m_timer_percpu __iomem *timers_percpu[SUN4M_NCPUS];
+
+struct sun4m_timer_global {
+        u32             l10_limit;
+        u32             l10_count;
+        u32             l10_limit_noclear;
+        u32             reserved;
+        u32             timer_config;
+};
+
+static struct sun4m_timer_global __iomem *timers_global;
+
+#define TIMER_IRQ       (OBP_INT_LEVEL_ONBOARD | 10)
 
-static struct sun4m_timer_regs *sun4m_timers;
 unsigned int lvl14_resolution = (((1000000/HZ) + 1) << 10);
 
 static void sun4m_clear_clock_irq(void)
 {
-        volatile unsigned int clear_intr;
-        clear_intr = sun4m_timers->l10_timer_limit;
+        sbus_readl(&timers_global->l10_limit);
 }
 
-static void sun4m_clear_profile_irq(int cpu)
+void sun4m_nmi(struct pt_regs *regs)
 {
-        volatile unsigned int clear;
-    
-        clear = sun4m_timers->cpu_timers[cpu].l14_timer_limit;
+        unsigned long afsr, afar, si;
+
+        printk(KERN_ERR "Aieee: sun4m NMI received!\n");
+        /* XXX HyperSparc hack XXX */
+        __asm__ __volatile__("mov 0x500, %%g1\n\t"
+                             "lda [%%g1] 0x4, %0\n\t"
+                             "mov 0x600, %%g1\n\t"
+                             "lda [%%g1] 0x4, %1\n\t" :
+                             "=r" (afsr), "=r" (afar));
+        printk(KERN_ERR "afsr=%08lx afar=%08lx\n", afsr, afar);
+        si = sbus_readl(&sun4m_irq_global->pending);
+        printk(KERN_ERR "si=%08lx\n", si);
+        if (si & SUN4M_INT_MODULE_ERR)
+                printk(KERN_ERR "Module async error\n");
+        if (si & SUN4M_INT_M2S_WRITE_ERR)
+                printk(KERN_ERR "MBus/SBus async error\n");
+        if (si & SUN4M_INT_ECC_ERR)
+                printk(KERN_ERR "ECC memory error\n");
+        if (si & SUN4M_INT_VME_ERR)
+                printk(KERN_ERR "VME async error\n");
+        printk(KERN_ERR "you lose buddy boy...\n");
+        show_regs(regs);
+        prom_halt();
+}
+
+/* Exported for sun4m_smp.c */
+void sun4m_clear_profile_irq(int cpu)
+{
+        sbus_readl(&timers_percpu[cpu]->l14_limit);
 }
 
 static void sun4m_load_profile_irq(int cpu, unsigned int limit)
 {
-        sun4m_timers->cpu_timers[cpu].l14_timer_limit = limit;
+        sbus_writel(limit, &timers_percpu[cpu]->l14_limit);
 }
 
 static void __init sun4m_init_timers(irq_handler_t counter_fn)
 {
-        int reg_count, irq, cpu;
-        struct linux_prom_registers cnt_regs[PROMREG_MAX];
-        int obio_node, cnt_node;
-        struct resource r;
-
-        cnt_node = 0;
-        if((obio_node =
-            prom_searchsiblings (prom_getchild(prom_root_node), "obio")) == 0 ||
-           (obio_node = prom_getchild (obio_node)) == 0 ||
-           (cnt_node = prom_searchsiblings (obio_node, "counter")) == 0) {
-                prom_printf("Cannot find /obio/counter node\n");
-                prom_halt();
+        struct device_node *dp = of_find_node_by_name(NULL, "counter");
+        int i, err, len, num_cpu_timers;
+        const u32 *addr;
+
+        if (!dp) {
+                printk(KERN_ERR "sun4m_init_timers: No 'counter' node.\n");
+                return;
         }
-        reg_count = prom_getproperty(cnt_node, "reg",
-                                     (void *) cnt_regs, sizeof(cnt_regs));
-        reg_count = (reg_count/sizeof(struct linux_prom_registers));
-    
-        /* Apply the obio ranges to the timer registers. */
-        prom_apply_obio_ranges(cnt_regs, reg_count);
-    
-        cnt_regs[4].phys_addr = cnt_regs[reg_count-1].phys_addr;
-        cnt_regs[4].reg_size = cnt_regs[reg_count-1].reg_size;
-        cnt_regs[4].which_io = cnt_regs[reg_count-1].which_io;
-        for(obio_node = 1; obio_node < 4; obio_node++) {
-                cnt_regs[obio_node].phys_addr =
-                        cnt_regs[obio_node-1].phys_addr + PAGE_SIZE;
-                cnt_regs[obio_node].reg_size = cnt_regs[obio_node-1].reg_size;
-                cnt_regs[obio_node].which_io = cnt_regs[obio_node-1].which_io;
+
+        addr = of_get_property(dp, "address", &len);
+        if (!addr) {
+                printk(KERN_ERR "sun4m_init_timers: No 'address' prop.\n");
+                return;
         }
 
-        memset((char*)&r, 0, sizeof(struct resource));
-        /* Map the per-cpu Counter registers. */
-        r.flags = cnt_regs[0].which_io;
-        r.start = cnt_regs[0].phys_addr;
-        sun4m_timers = (struct sun4m_timer_regs *) sbus_ioremap(&r, 0,
-            PAGE_SIZE*SUN4M_NCPUS, "sun4m_cpu_cnt");
-        /* Map the system Counter register. */
-        /* XXX Here we expect consequent calls to yeld adjusent maps. */
-        r.flags = cnt_regs[4].which_io;
-        r.start = cnt_regs[4].phys_addr;
-        sbus_ioremap(&r, 0, cnt_regs[4].reg_size, "sun4m_sys_cnt");
-
-        sun4m_timers->l10_timer_limit =  (((1000000/HZ) + 1) << 10);
-        master_l10_counter = &sun4m_timers->l10_cur_count;
-        master_l10_limit = &sun4m_timers->l10_timer_limit;
-
-        irq = request_irq(TIMER_IRQ,
-                          counter_fn,
-                          (IRQF_DISABLED | SA_STATIC_ALLOC),
-                          "timer", NULL);
-        if (irq) {
-                prom_printf("time_init: unable to attach IRQ%d\n",TIMER_IRQ);
-                prom_halt();
+        num_cpu_timers = (len / sizeof(u32)) - 1;
+        for (i = 0; i < num_cpu_timers; i++) {
+                timers_percpu[i] = (void __iomem *)
+                        (unsigned long) addr[i];
         }
-   
-        if (!cpu_find_by_instance(1, NULL, NULL)) {
-                for(cpu = 0; cpu < 4; cpu++)
-                        sun4m_timers->cpu_timers[cpu].l14_timer_limit = 0;
-                sun4m_interrupts->set = SUN4M_INT_E14;
-        } else {
-                sun4m_timers->cpu_timers[0].l14_timer_limit = 0;
+        timers_global = (void __iomem *)
+                (unsigned long) addr[num_cpu_timers];
+
+        sbus_writel((((1000000/HZ) + 1) << 10), &timers_global->l10_limit);
+
+        master_l10_counter = &timers_global->l10_count;
+
+        err = request_irq(TIMER_IRQ, counter_fn,
+                          (IRQF_DISABLED | SA_STATIC_ALLOC), "timer", NULL);
+        if (err) {
+                printk(KERN_ERR "sun4m_init_timers: Register IRQ error %d.\n",
+                        err);
+                return;
         }
+
+        for (i = 0; i < num_cpu_timers; i++)
+                sbus_writel(0, &timers_percpu[i]->l14_limit);
+        if (num_cpu_timers == 4)
+                sbus_writel(SUN4M_INT_E14, &sun4m_irq_global->mask_set);
+
 #ifdef CONFIG_SMP
         {
                 unsigned long flags;
@@ -390,70 +427,43 @@ static void __init sun4m_init_timers(irq_handler_t counter_fn)
 
 void __init sun4m_init_IRQ(void)
 {
-        int ie_node,i;
-        struct linux_prom_registers int_regs[PROMREG_MAX];
-        int num_regs;
-        struct resource r;
-        int mid;
-    
-        local_irq_disable();
-        if((ie_node = prom_searchsiblings(prom_getchild(prom_root_node), "obio")) == 0 ||
-           (ie_node = prom_getchild (ie_node)) == 0 ||
-           (ie_node = prom_searchsiblings (ie_node, "interrupt")) == 0) {
-                prom_printf("Cannot find /obio/interrupt node\n");
-                prom_halt();
+        struct device_node *dp = of_find_node_by_name(NULL, "interrupt");
+        int len, i, mid, num_cpu_iregs;
+        const u32 *addr;
+
+        if (!dp) {
+                printk(KERN_ERR "sun4m_init_IRQ: No 'interrupt' node.\n");
+                return;
         }
-        num_regs = prom_getproperty(ie_node, "reg", (char *) int_regs,
-                                    sizeof(int_regs));
-        num_regs = (num_regs/sizeof(struct linux_prom_registers));
-    
-        /* Apply the obio ranges to these registers. */
-        prom_apply_obio_ranges(int_regs, num_regs);
-    
-        int_regs[4].phys_addr = int_regs[num_regs-1].phys_addr;
-        int_regs[4].reg_size = int_regs[num_regs-1].reg_size;
-        int_regs[4].which_io = int_regs[num_regs-1].which_io;
-        for(ie_node = 1; ie_node < 4; ie_node++) {
-                int_regs[ie_node].phys_addr = int_regs[ie_node-1].phys_addr + PAGE_SIZE;
-                int_regs[ie_node].reg_size = int_regs[ie_node-1].reg_size;
-                int_regs[ie_node].which_io = int_regs[ie_node-1].which_io;
+
+        addr = of_get_property(dp, "address", &len);
+        if (!addr) {
+                printk(KERN_ERR "sun4m_init_IRQ: No 'address' prop.\n");
+                return;
         }
 
-        memset((char *)&r, 0, sizeof(struct resource));
-        /* Map the interrupt registers for all possible cpus. */
-        r.flags = int_regs[0].which_io;
-        r.start = int_regs[0].phys_addr;
-        sun4m_interrupts = (struct sun4m_intregs *) sbus_ioremap(&r, 0,
-            PAGE_SIZE*SUN4M_NCPUS, "interrupts_percpu");
+        num_cpu_iregs = (len / sizeof(u32)) - 1;
+        for (i = 0; i < num_cpu_iregs; i++) {
+                sun4m_irq_percpu[i] = (void __iomem *)
+                        (unsigned long) addr[i];
+        }
+        sun4m_irq_global = (void __iomem *)
+                (unsigned long) addr[num_cpu_iregs];
 
-        /* Map the system interrupt control registers. */
-        r.flags = int_regs[4].which_io;
-        r.start = int_regs[4].phys_addr;
-        sbus_ioremap(&r, 0, int_regs[4].reg_size, "interrupts_system");
+        local_irq_disable();
 
-        sun4m_interrupts->set = ~SUN4M_INT_MASKALL;
+        sbus_writel(~SUN4M_INT_MASKALL, &sun4m_irq_global->mask_set);
         for (i = 0; !cpu_find_by_instance(i, NULL, &mid); i++)
-                sun4m_interrupts->cpu_intregs[mid].clear = ~0x17fff;
-
-        if (!cpu_find_by_instance(1, NULL, NULL)) {
-                /* system wide interrupts go to cpu 0, this should always
-                 * be safe because it is guaranteed to be fitted or OBP doesn't
-                 * come up
-                 *
-                 * Not sure, but writing here on SLAVIO systems may puke
-                 * so I don't do it unless there is more than 1 cpu.
-                 */
-                irq_rcvreg = (unsigned long *)
-                                &sun4m_interrupts->undirected_target;
-                sun4m_interrupts->undirected_target = 0;
-        }
-        BTFIXUPSET_CALL(sbint_to_irq, sun4m_sbint_to_irq, BTFIXUPCALL_NORM);
+                sbus_writel(~0x17fff, &sun4m_irq_percpu[mid]->clear);
+
+        if (num_cpu_iregs == 4)
+                sbus_writel(0, &sun4m_irq_global->interrupt_target);
+
         BTFIXUPSET_CALL(enable_irq, sun4m_enable_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(disable_irq, sun4m_disable_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(enable_pil_irq, sun4m_enable_pil_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(disable_pil_irq, sun4m_disable_pil_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(clear_clock_irq, sun4m_clear_clock_irq, BTFIXUPCALL_NORM);
-        BTFIXUPSET_CALL(clear_profile_irq, sun4m_clear_profile_irq, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(load_profile_irq, sun4m_load_profile_irq, BTFIXUPCALL_NORM);
         sparc_init_timers = sun4m_init_timers;
 #ifdef CONFIG_SMP
@@ -461,5 +471,6 @@ void __init sun4m_init_IRQ(void)
         BTFIXUPSET_CALL(clear_cpu_int, sun4m_clear_ipi, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(set_irq_udt, sun4m_set_udt, BTFIXUPCALL_NORM);
 #endif
+
         /* Cannot enable interrupts until OBP ticker is disabled. */
 }
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 9964890dc1d..0c564ba9e70 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -315,6 +315,8 @@ void smp4m_cross_call_irq(void)
         ccall_info.processors_out[i] = 1;
 }
 
+extern void sun4m_clear_profile_irq(int cpu);
+
 void smp4m_percpu_timer_interrupt(struct pt_regs *regs)
 {
         struct pt_regs *old_regs;
@@ -322,7 +324,7 @@ void smp4m_percpu_timer_interrupt(struct pt_regs *regs)
 
         old_regs = set_irq_regs(regs);
 
-        clear_profile_irq(cpu);
+        sun4m_clear_profile_irq(cpu);
 
         profile_tick(CPU_PROFILING);
 
diff --git a/arch/sparc/kernel/sun4setup.c b/arch/sparc/kernel/sun4setup.c
deleted file mode 100644
index 229a52f55f1..00000000000
--- a/arch/sparc/kernel/sun4setup.c
+++ /dev/null
@@ -1,75 +0,0 @@
-/* sun4setup.c: Setup the hardware address of various items in the sun4
- *              architecture. Called from idprom_init
- *
- * Copyright (C) 1998 Chris G. Davis (cdavis@cois.on.ca)
- */
-
-#include <asm/page.h>
-#include <asm/oplib.h>
-#include <asm/idprom.h>
-#include <asm/sun4paddr.h>
-#include <asm/machines.h>
-
-int sun4_memreg_physaddr;
-int sun4_ie_physaddr;
-int sun4_clock_physaddr;
-int sun4_timer_physaddr;
-int sun4_eth_physaddr;
-int sun4_si_physaddr;
-int sun4_bwtwo_physaddr;
-int sun4_zs0_physaddr;
-int sun4_zs1_physaddr;
-int sun4_dma_physaddr;
-int sun4_esp_physaddr;
-int sun4_ie_physaddr; 
-
-void __init sun4setup(void)
-{
-        printk("Sun4 Hardware Setup v1.0 18/May/98 Chris Davis (cdavis@cois.on.ca). ");
-        /*
-          setup standard sun4 info
-          */
-        sun4_ie_physaddr=SUN4_IE_PHYSADDR;
-
-        /*
-          setup model specific info
-          */
-        switch(idprom->id_machtype) {
-                case (SM_SUN4 | SM_4_260 ):
-                        printk("Setup for a SUN4/260\n");
-                        sun4_memreg_physaddr=SUN4_200_MEMREG_PHYSADDR;
-                        sun4_clock_physaddr=SUN4_200_CLOCK_PHYSADDR;
-                        sun4_timer_physaddr=SUN4_UNUSED_PHYSADDR;
-                        sun4_eth_physaddr=SUN4_200_ETH_PHYSADDR;
-                        sun4_si_physaddr=SUN4_200_SI_PHYSADDR;
-                        sun4_bwtwo_physaddr=SUN4_200_BWTWO_PHYSADDR;
-                        sun4_dma_physaddr=SUN4_UNUSED_PHYSADDR;
-                        sun4_esp_physaddr=SUN4_UNUSED_PHYSADDR;
-                        break;
-                case (SM_SUN4 | SM_4_330 ):
-                        printk("Setup for a SUN4/330\n");
-                        sun4_memreg_physaddr=SUN4_300_MEMREG_PHYSADDR;
-                        sun4_clock_physaddr=SUN4_300_CLOCK_PHYSADDR;
-                        sun4_timer_physaddr=SUN4_300_TIMER_PHYSADDR;
-                        sun4_eth_physaddr=SUN4_300_ETH_PHYSADDR;
-                        sun4_si_physaddr=SUN4_UNUSED_PHYSADDR;
-                        sun4_bwtwo_physaddr=SUN4_300_BWTWO_PHYSADDR;
-                        sun4_dma_physaddr=SUN4_300_DMA_PHYSADDR;
-                        sun4_esp_physaddr=SUN4_300_ESP_PHYSADDR;
-                        break;
-                case (SM_SUN4 | SM_4_470 ):
-                        printk("Setup for a SUN4/470\n");
-                        sun4_memreg_physaddr=SUN4_400_MEMREG_PHYSADDR;
-                        sun4_clock_physaddr=SUN4_400_CLOCK_PHYSADDR;
-                        sun4_timer_physaddr=SUN4_400_TIMER_PHYSADDR;
-                        sun4_eth_physaddr=SUN4_400_ETH_PHYSADDR;
-                        sun4_si_physaddr=SUN4_UNUSED_PHYSADDR;
-                        sun4_bwtwo_physaddr=SUN4_400_BWTWO_PHYSADDR;
-                        sun4_dma_physaddr=SUN4_400_DMA_PHYSADDR;
-                        sun4_esp_physaddr=SUN4_400_ESP_PHYSADDR;
-                        break;
-                default:
-                        ;
-        }
-}
-
diff --git a/arch/sparc/kernel/sys_sparc.c b/arch/sparc/kernel/sys_sparc.c
index 4d73421559c..03035c852a4 100644
--- a/arch/sparc/kernel/sys_sparc.c
+++ b/arch/sparc/kernel/sys_sparc.c
@@ -53,7 +53,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
         /* See asm-sparc/uaccess.h */
         if (len > TASK_SIZE - PAGE_SIZE)
                 return -ENOMEM;
-        if (ARCH_SUN4C_SUN4 && len > 0x20000000)
+        if (ARCH_SUN4C && len > 0x20000000)
                 return -ENOMEM;
         if (!addr)
                 addr = TASK_UNMAPPED_BASE;
@@ -65,7 +65,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 
         for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) {
                 /* At this point:  (!vmm || addr < vmm->vm_end). */
-                if (ARCH_SUN4C_SUN4 && addr < 0xe0000000 && 0x20000000 - len < addr) {
+                if (ARCH_SUN4C && addr < 0xe0000000 && 0x20000000 - len < addr) {
                         addr = PAGE_OFFSET;
                         vmm = find_vma(current->mm, PAGE_OFFSET);
                 }
@@ -81,7 +81,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 
 asmlinkage unsigned long sparc_brk(unsigned long brk)
 {
-        if(ARCH_SUN4C_SUN4) {
+        if(ARCH_SUN4C) {
                 if ((brk & 0xe0000000) != (current->mm->brk & 0xe0000000))
                         return current->mm->brk;
         }
@@ -221,7 +221,7 @@ out:
 
 int sparc_mmap_check(unsigned long addr, unsigned long len)
 {
-        if (ARCH_SUN4C_SUN4 &&
+        if (ARCH_SUN4C &&
             (len > 0x20000000 ||
              (addr < 0xe0000000 && addr + len > 0x20000000)))
                 return -EINVAL;
diff --git a/arch/sparc/kernel/tick14.c b/arch/sparc/kernel/tick14.c
index 707bfda8657..138bbf5f872 100644
--- a/arch/sparc/kernel/tick14.c
+++ b/arch/sparc/kernel/tick14.c
@@ -1,31 +1,12 @@
 /* tick14.c
- * linux/arch/sparc/kernel/tick14.c
  *
  * Copyright (C) 1996 David Redman (djhr@tadpole.co.uk)
  *
  * This file handles the Sparc specific level14 ticker
  * This is really useful for profiling OBP uses it for keyboard
  * aborts and other stuff.
- *
- *
  */
-#include <linux/errno.h>
-#include <linux/sched.h>
 #include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/timex.h>
-#include <linux/interrupt.h>
-
-#include <asm/oplib.h>
-#include <asm/timer.h>
-#include <asm/mostek.h>
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-
-#include "irq.h"
 
 extern unsigned long lvl14_save[5];
 static unsigned long *linux_lvl14 = NULL;
@@ -56,31 +37,3 @@ void install_obp_ticker(void)
         linux_lvl14[2] =  obp_lvl14[2];
         linux_lvl14[3] =  obp_lvl14[3]; 
 }
-
-void claim_ticker14(irq_handler_t handler,
-                    int irq_nr, unsigned int timeout )
-{
-        int cpu = smp_processor_id();
-
-        /* first we copy the obp handler instructions
-         */
-        __disable_irq(irq_nr);
-        if (!handler)
-                return;
-    
-        linux_lvl14 = (unsigned long *)lvl14_save[4];
-        obp_lvl14[0] = linux_lvl14[0];
-        obp_lvl14[1] = linux_lvl14[1];
-        obp_lvl14[2] = linux_lvl14[2];
-        obp_lvl14[3] = linux_lvl14[3];
-
-        if (!request_irq(irq_nr,
-                         handler,
-                         (IRQF_DISABLED | SA_STATIC_ALLOC),
-                         "counter14",
-                         NULL)) {
-                install_linux_ticker();
-                load_profile_irq(cpu, timeout);
-                __enable_irq(irq_nr);
-        }
-}
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index 0762f5db192..62c1d94cb43 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -23,22 +23,24 @@
 #include <linux/mm.h>
 #include <linux/interrupt.h>
 #include <linux/time.h>
+#include <linux/rtc.h>
+#include <linux/rtc/m48t59.h>
 #include <linux/timex.h>
 #include <linux/init.h>
 #include <linux/pci.h>
 #include <linux/ioport.h>
 #include <linux/profile.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/platform_device.h>
 
 #include <asm/oplib.h>
 #include <asm/timer.h>
-#include <asm/mostek.h>
 #include <asm/system.h>
 #include <asm/irq.h>
 #include <asm/io.h>
 #include <asm/idprom.h>
 #include <asm/machines.h>
-#include <asm/sun4paddr.h>
 #include <asm/page.h>
 #include <asm/pcic.h>
 #include <asm/irq_regs.h>
@@ -46,34 +48,9 @@
 #include "irq.h"
 
 DEFINE_SPINLOCK(rtc_lock);
-static enum sparc_clock_type sp_clock_typ;
-DEFINE_SPINLOCK(mostek_lock);
-void __iomem *mstk48t02_regs = NULL;
-static struct mostek48t08 __iomem *mstk48t08_regs = NULL;
 static int set_rtc_mmss(unsigned long);
 static int sbus_do_settimeofday(struct timespec *tv);
 
-#ifdef CONFIG_SUN4
-struct intersil *intersil_clock;
-#define intersil_cmd(intersil_reg, intsil_cmd) intersil_reg->int_cmd_reg = \
-        (intsil_cmd)
-
-#define intersil_intr(intersil_reg, intsil_cmd) intersil_reg->int_intr_reg = \
-        (intsil_cmd)
-
-#define intersil_start(intersil_reg) intersil_cmd(intersil_reg, \
-        ( INTERSIL_START | INTERSIL_32K | INTERSIL_NORMAL | INTERSIL_24H |\
-          INTERSIL_INTR_ENABLE))
-
-#define intersil_stop(intersil_reg) intersil_cmd(intersil_reg, \
-        ( INTERSIL_STOP | INTERSIL_32K | INTERSIL_NORMAL | INTERSIL_24H |\
-          INTERSIL_INTR_ENABLE))
-
-#define intersil_read_intr(intersil_reg, towhere) towhere = \
-        intersil_reg->int_intr_reg
-
-#endif
-
 unsigned long profile_pc(struct pt_regs *regs)
 {
         extern char __copy_user_begin[], __copy_user_end[];
@@ -96,7 +73,6 @@ unsigned long profile_pc(struct pt_regs *regs)
 EXPORT_SYMBOL(profile_pc);
 
 __volatile__ unsigned int *master_l10_counter;
-__volatile__ unsigned int *master_l10_limit;
 
 /*
  * timer_interrupt() needs to keep up the real-time clock,
@@ -116,15 +92,7 @@ static irqreturn_t timer_interrupt(int dummy, void *dev_id)
 
         /* Protect counter clear so that do_gettimeoffset works */
         write_seqlock(&xtime_lock);
-#ifdef CONFIG_SUN4
-        if((idprom->id_machtype == (SM_SUN4 | SM_4_260)) ||
-           (idprom->id_machtype == (SM_SUN4 | SM_4_110))) {
-                int temp;
-                intersil_read_intr(intersil_clock, temp);
-                /* re-enable the irq */
-                enable_pil_irq(10);
-        }
-#endif
+
         clear_clock_irq();
 
         do_timer(1);
@@ -147,157 +115,56 @@ static irqreturn_t timer_interrupt(int dummy, void *dev_id)
         return IRQ_HANDLED;
 }
 
-/* Kick start a stopped clock (procedure from the Sun NVRAM/hostid FAQ). */
-static void __devinit kick_start_clock(void)
+static unsigned char mostek_read_byte(struct device *dev, u32 ofs)
 {
-        struct mostek48t02 *regs = (struct mostek48t02 *)mstk48t02_regs;
-        unsigned char sec;
-        int i, count;
-
-        prom_printf("CLOCK: Clock was stopped. Kick start ");
-
-        spin_lock_irq(&mostek_lock);
-
-        /* Turn on the kick start bit to start the oscillator. */
-        regs->creg |= MSTK_CREG_WRITE;
-        regs->sec &= ~MSTK_STOP;
-        regs->hour |= MSTK_KICK_START;
-        regs->creg &= ~MSTK_CREG_WRITE;
-
-        spin_unlock_irq(&mostek_lock);
-
-        /* Delay to allow the clock oscillator to start. */
-        sec = MSTK_REG_SEC(regs);
-        for (i = 0; i < 3; i++) {
-                while (sec == MSTK_REG_SEC(regs))
-                        for (count = 0; count < 100000; count++)
-                                /* nothing */ ;
-                prom_printf(".");
-                sec = regs->sec;
-        }
-        prom_printf("\n");
-
-        spin_lock_irq(&mostek_lock);
-
-        /* Turn off kick start and set a "valid" time and date. */
-        regs->creg |= MSTK_CREG_WRITE;
-        regs->hour &= ~MSTK_KICK_START;
-        MSTK_SET_REG_SEC(regs,0);
-        MSTK_SET_REG_MIN(regs,0);
-        MSTK_SET_REG_HOUR(regs,0);
-        MSTK_SET_REG_DOW(regs,5);
-        MSTK_SET_REG_DOM(regs,1);
-        MSTK_SET_REG_MONTH(regs,8);
-        MSTK_SET_REG_YEAR(regs,1996 - MSTK_YEAR_ZERO);
-        regs->creg &= ~MSTK_CREG_WRITE;
-
-        spin_unlock_irq(&mostek_lock);
-
-        /* Ensure the kick start bit is off. If it isn't, turn it off. */
-        while (regs->hour & MSTK_KICK_START) {
-                prom_printf("CLOCK: Kick start still on!\n");
-
-                spin_lock_irq(&mostek_lock);
-                regs->creg |= MSTK_CREG_WRITE;
-                regs->hour &= ~MSTK_KICK_START;
-                regs->creg &= ~MSTK_CREG_WRITE;
-                spin_unlock_irq(&mostek_lock);
+        struct platform_device *pdev = to_platform_device(dev);
+        struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+        void __iomem *regs = pdata->ioaddr;
+        unsigned char val = readb(regs + ofs);
+
+        /* the year 0 is 1968 */
+        if (ofs == pdata->offset + M48T59_YEAR) {
+                val += 0x68;
+                if ((val & 0xf) > 9)
+                        val += 6;
         }
-
-        prom_printf("CLOCK: Kick start procedure successful.\n");
-}
-
-/* Return nonzero if the clock chip battery is low. */
-static inline int has_low_battery(void)
-{
-        struct mostek48t02 *regs = (struct mostek48t02 *)mstk48t02_regs;
-        unsigned char data1, data2;
-
-        spin_lock_irq(&mostek_lock);
-        data1 = regs->eeprom[0];        /* Read some data. */
-        regs->eeprom[0] = ~data1;       /* Write back the complement. */
-        data2 = regs->eeprom[0];        /* Read back the complement. */
-        regs->eeprom[0] = data1;        /* Restore the original value. */
-        spin_unlock_irq(&mostek_lock);
-
-        return (data1 == data2);        /* Was the write blocked? */
+        return val;
 }
 
-static void __devinit mostek_set_system_time(void)
+static void mostek_write_byte(struct device *dev, u32 ofs, u8 val)
 {
-        unsigned int year, mon, day, hour, min, sec;
-        struct mostek48t02 *mregs;
-
-        mregs = (struct mostek48t02 *)mstk48t02_regs;
-        if(!mregs) {
-                prom_printf("Something wrong, clock regs not mapped yet.\n");
-                prom_halt();
-        }               
-        spin_lock_irq(&mostek_lock);
-        mregs->creg |= MSTK_CREG_READ;
-        sec = MSTK_REG_SEC(mregs);
-        min = MSTK_REG_MIN(mregs);
-        hour = MSTK_REG_HOUR(mregs);
-        day = MSTK_REG_DOM(mregs);
-        mon = MSTK_REG_MONTH(mregs);
-        year = MSTK_CVT_YEAR( MSTK_REG_YEAR(mregs) );
-        xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
-        xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
-        set_normalized_timespec(&wall_to_monotonic,
-                                -xtime.tv_sec, -xtime.tv_nsec);
-        mregs->creg &= ~MSTK_CREG_READ;
-        spin_unlock_irq(&mostek_lock);
+        struct platform_device *pdev = to_platform_device(dev);
+        struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+        void __iomem *regs = pdata->ioaddr;
+
+        if (ofs == pdata->offset + M48T59_YEAR) {
+                if (val < 0x68)
+                        val += 0x32;
+                else
+                        val -= 0x68;
+                if ((val & 0xf) > 9)
+                        val += 6;
+                if ((val & 0xf0) > 0x9A)
+                        val += 0x60;
+        }
+        writeb(val, regs + ofs);
 }
 
-/* Probe for the real time clock chip on Sun4 */
-static inline void sun4_clock_probe(void)
-{
-#ifdef CONFIG_SUN4
-        int temp;
-        struct resource r;
-
-        memset(&r, 0, sizeof(r));
-        if( idprom->id_machtype == (SM_SUN4 | SM_4_330) ) {
-                sp_clock_typ = MSTK48T02;
-                r.start = sun4_clock_physaddr;
-                mstk48t02_regs = sbus_ioremap(&r, 0,
-                                       sizeof(struct mostek48t02), NULL);
-                mstk48t08_regs = NULL;  /* To catch weirdness */
-                intersil_clock = NULL;  /* just in case */
-
-                /* Kick start the clock if it is completely stopped. */
-                if (mostek_read(mstk48t02_regs + MOSTEK_SEC) & MSTK_STOP)
-                        kick_start_clock();
-        } else if( idprom->id_machtype == (SM_SUN4 | SM_4_260)) {
-                /* intersil setup code */
-                printk("Clock: INTERSIL at %8x ",sun4_clock_physaddr);
-                sp_clock_typ = INTERSIL;
-                r.start = sun4_clock_physaddr;
-                intersil_clock = (struct intersil *) 
-                    sbus_ioremap(&r, 0, sizeof(*intersil_clock), "intersil");
-                mstk48t02_regs = 0;  /* just be sure */
-                mstk48t08_regs = NULL;  /* ditto */
-                /* initialise the clock */
-
-                intersil_intr(intersil_clock,INTERSIL_INT_100HZ);
-
-                intersil_start(intersil_clock);
-
-                intersil_read_intr(intersil_clock, temp);
-                while (!(temp & 0x80))
-                        intersil_read_intr(intersil_clock, temp);
-
-                intersil_read_intr(intersil_clock, temp);
-                while (!(temp & 0x80))
-                        intersil_read_intr(intersil_clock, temp);
-
-                intersil_stop(intersil_clock);
+static struct m48t59_plat_data m48t59_data = {
+        .read_byte = mostek_read_byte,
+        .write_byte = mostek_write_byte,
+};
 
-        }
-#endif
-}
+/* resource is set at runtime */
+static struct platform_device m48t59_rtc = {
+        .name           = "rtc-m48t59",
+        .id             = 0,
+        .num_resources  = 1,
+        .dev    = {
+                .platform_data = &m48t59_data,
+        },
+};
 
-#ifndef CONFIG_SUN4
 static int __devinit clock_probe(struct of_device *op, const struct of_device_id *match)
 {
         struct device_node *dp = op->node;
@@ -306,38 +173,26 @@ static int __devinit clock_probe(struct of_device *op, const struct of_device_id
         if (!model)
                 return -ENODEV;
 
+        m48t59_rtc.resource = &op->resource[0];
         if (!strcmp(model, "mk48t02")) {
-                sp_clock_typ = MSTK48T02;
-
                 /* Map the clock register io area read-only */
-                mstk48t02_regs = of_ioremap(&op->resource[0], 0,
-                                            sizeof(struct mostek48t02),
-                                            "mk48t02");
-                mstk48t08_regs = NULL;  /* To catch weirdness */
+                m48t59_data.ioaddr = of_ioremap(&op->resource[0], 0,
+                                                2048, "rtc-m48t59");
+                m48t59_data.type = M48T59RTC_TYPE_M48T02;
         } else if (!strcmp(model, "mk48t08")) {
-                sp_clock_typ = MSTK48T08;
-                mstk48t08_regs = of_ioremap(&op->resource[0], 0,
-                                            sizeof(struct mostek48t08),
-                                            "mk48t08");
-
-                mstk48t02_regs = &mstk48t08_regs->regs;
+                m48t59_data.ioaddr = of_ioremap(&op->resource[0], 0,
+                                                8192, "rtc-m48t59");
+                m48t59_data.type = M48T59RTC_TYPE_M48T08;
         } else
                 return -ENODEV;
 
-        /* Report a low battery voltage condition. */
-        if (has_low_battery())
-                printk(KERN_CRIT "NVRAM: Low battery voltage!\n");
-
-        /* Kick start the clock if it is completely stopped. */
-        if (mostek_read(mstk48t02_regs + MOSTEK_SEC) & MSTK_STOP)
-                kick_start_clock();
-
-        mostek_set_system_time();
+        if (platform_device_register(&m48t59_rtc) < 0)
+                printk(KERN_ERR "Registering RTC device failed\n");
 
         return 0;
 }
 
-static struct of_device_id clock_match[] = {
+static struct of_device_id __initdata clock_match[] = {
         {
                 .name = "eeprom",
         },
@@ -348,7 +203,7 @@ static struct of_platform_driver clock_driver = {
         .match_table    = clock_match,
         .probe          = clock_probe,
         .driver         = {
-                .name   = "clock",
+                .name   = "rtc",
         },
 };
 
@@ -364,7 +219,6 @@ static int __init clock_init(void)
  * need to see the clock registers.
  */
 fs_initcall(clock_init);
-#endif /* !CONFIG_SUN4 */
 
 static void __init sbus_time_init(void)
 {
@@ -372,51 +226,8 @@ static void __init sbus_time_init(void)
         BTFIXUPSET_CALL(bus_do_settimeofday, sbus_do_settimeofday, BTFIXUPCALL_NORM);
         btfixup();
 
-        if (ARCH_SUN4)
-                sun4_clock_probe();
-
         sparc_init_timers(timer_interrupt);
         
-#ifdef CONFIG_SUN4
-        if(idprom->id_machtype == (SM_SUN4 | SM_4_330)) {
-                mostek_set_system_time();
-        } else if(idprom->id_machtype == (SM_SUN4 | SM_4_260) ) {
-                /* initialise the intersil on sun4 */
-                unsigned int year, mon, day, hour, min, sec;
-                int temp;
-                struct intersil *iregs;
-
-                iregs=intersil_clock;
-                if(!iregs) {
-                        prom_printf("Something wrong, clock regs not mapped yet.\n");
-                        prom_halt();
-                }
-
-                intersil_intr(intersil_clock,INTERSIL_INT_100HZ);
-                disable_pil_irq(10);
-                intersil_stop(iregs);
-                intersil_read_intr(intersil_clock, temp);
-
-                temp = iregs->clk.int_csec;
-
-                sec = iregs->clk.int_sec;
-                min = iregs->clk.int_min;
-                hour = iregs->clk.int_hour;
-                day = iregs->clk.int_day;
-                mon = iregs->clk.int_month;
-                year = MSTK_CVT_YEAR(iregs->clk.int_year);
-
-                enable_pil_irq(10);
-                intersil_start(iregs);
-
-                xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
-                xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
-                set_normalized_timespec(&wall_to_monotonic,
-                                       -xtime.tv_sec, -xtime.tv_nsec);
-                printk("%u/%u/%u %u:%u:%u\n",day,mon,year,hour,min,sec);
-        }
-#endif
-
         /* Now that OBP ticker has been silenced, it is safe to enable IRQ. */
         local_irq_enable();
 }
@@ -522,80 +333,15 @@ static int sbus_do_settimeofday(struct timespec *tv)
         return 0;
 }
 
-/*
- * BUG: This routine does not handle hour overflow properly; it just
- *      sets the minutes. Usually you won't notice until after reboot!
- */
-static int set_rtc_mmss(unsigned long nowtime)
+static int set_rtc_mmss(unsigned long secs)
 {
-        int real_seconds, real_minutes, mostek_minutes;
-        struct mostek48t02 *regs = (struct mostek48t02 *)mstk48t02_regs;
-        unsigned long flags;
-#ifdef CONFIG_SUN4
-        struct intersil *iregs = intersil_clock;
-        int temp;
-#endif
+        struct rtc_device *rtc = rtc_class_open("rtc0");
+        int err = -1;
 
-        /* Not having a register set can lead to trouble. */
-        if (!regs) {
-#ifdef CONFIG_SUN4
-                if(!iregs)
-                return -1;
-                else {
-                        temp = iregs->clk.int_csec;
-
-                        mostek_minutes = iregs->clk.int_min;
-
-                        real_seconds = nowtime % 60;
-                        real_minutes = nowtime / 60;
-                        if (((abs(real_minutes - mostek_minutes) + 15)/30) & 1)
-                                real_minutes += 30;     /* correct for half hour time zone */
-                        real_minutes %= 60;
-
-                        if (abs(real_minutes - mostek_minutes) < 30) {
-                                intersil_stop(iregs);
-                                iregs->clk.int_sec=real_seconds;
-                                iregs->clk.int_min=real_minutes;
-                                intersil_start(iregs);
-                        } else {
-                                printk(KERN_WARNING
-                               "set_rtc_mmss: can't update from %d to %d\n",
-                                       mostek_minutes, real_minutes);
-                                return -1;
-                        }
-                        
-                        return 0;
-                }
-#endif
+        if (rtc) {
+                err = rtc_set_mmss(rtc, secs);
+                rtc_class_close(rtc);
         }
 
-        spin_lock_irqsave(&mostek_lock, flags);
-        /* Read the current RTC minutes. */
-        regs->creg |= MSTK_CREG_READ;
-        mostek_minutes = MSTK_REG_MIN(regs);
-        regs->creg &= ~MSTK_CREG_READ;
-
-        /*
-         * since we're only adjusting minutes and seconds,
-         * don't interfere with hour overflow. This avoids
-         * messing with unknown time zones but requires your
-         * RTC not to be off by more than 15 minutes
-         */
-        real_seconds = nowtime % 60;
-        real_minutes = nowtime / 60;
-        if (((abs(real_minutes - mostek_minutes) + 15)/30) & 1)
-                real_minutes += 30;     /* correct for half hour time zone */
-        real_minutes %= 60;
-
-        if (abs(real_minutes - mostek_minutes) < 30) {
-                regs->creg |= MSTK_CREG_WRITE;
-                MSTK_SET_REG_SEC(regs,real_seconds);
-                MSTK_SET_REG_MIN(regs,real_minutes);
-                regs->creg &= ~MSTK_CREG_WRITE;
-                spin_unlock_irqrestore(&mostek_lock, flags);
-                return 0;
-        } else {
-                spin_unlock_irqrestore(&mostek_lock, flags);
-                return -1;
-        }
+        return err;
 }
diff --git a/arch/sparc/kernel/traps.c b/arch/sparc/kernel/traps.c
index 5d45d5fd8c9..2b7d5065903 100644
--- a/arch/sparc/kernel/traps.c
+++ b/arch/sparc/kernel/traps.c
@@ -43,23 +43,6 @@ void syscall_trace_exit(struct pt_regs *regs)
 {
 }
 
-void sun4m_nmi(struct pt_regs *regs)
-{
-        unsigned long afsr, afar;
-
-        printk("Aieee: sun4m NMI received!\n");
-        /* XXX HyperSparc hack XXX */
-        __asm__ __volatile__("mov 0x500, %%g1\n\t"
-                             "lda [%%g1] 0x4, %0\n\t"
-                             "mov 0x600, %%g1\n\t"
-                             "lda [%%g1] 0x4, %1\n\t" :
-                             "=r" (afsr), "=r" (afar));
-        printk("afsr=%08lx afar=%08lx\n", afsr, afar);
-        printk("you lose buddy boy...\n");
-        show_regs(regs);
-        prom_halt();
-}
-
 void sun4d_nmi(struct pt_regs *regs)
 {
         printk("Aieee: sun4d NMI received!\n");
diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile
index 109c8b22cb3..ea88955d97f 100644
--- a/arch/sparc/mm/Makefile
+++ b/arch/sparc/mm/Makefile
@@ -3,13 +3,8 @@
 
 EXTRA_AFLAGS := -ansi
 
-obj-y    := fault.o init.o loadmmu.o generic.o extable.o btfixup.o
-
-ifeq ($(CONFIG_SUN4),y)
-obj-y    += nosrmmu.o
-else
-obj-y    += srmmu.o iommu.o io-unit.o hypersparc.o viking.o tsunami.o swift.o
-endif
+obj-y   := fault.o init.o loadmmu.o generic.o extable.o btfixup.o \
+            srmmu.o iommu.o io-unit.o hypersparc.o viking.o tsunami.o swift.o
 
 ifdef CONFIG_HIGHMEM
 obj-y   += highmem.o
diff --git a/arch/sparc/mm/btfixup.c b/arch/sparc/mm/btfixup.c
index a312d127d47..5175ac2f482 100644
--- a/arch/sparc/mm/btfixup.c
+++ b/arch/sparc/mm/btfixup.c
@@ -20,11 +20,7 @@
 
 extern char *srmmu_name;
 static char version[] __initdata = "Boot time fixup v1.6. 4/Mar/98 Jakub Jelinek (jj@ultra.linux.cz). Patching kernel for ";
-#ifdef CONFIG_SUN4
-static char str_sun4c[] __initdata = "sun4\n";
-#else
 static char str_sun4c[] __initdata = "sun4c\n";
-#endif
 static char str_srmmu[] __initdata = "srmmu[%s]/";
 static char str_iommu[] __initdata = "iommu\n";
 static char str_iounit[] __initdata = "io-unit\n";
@@ -86,7 +82,7 @@ void __init btfixup(void)
         if (!visited) {
                 visited++;
                 printk(version);
-                if (ARCH_SUN4C_SUN4)
+                if (ARCH_SUN4C)
                         printk(str_sun4c);
                 else {
                         printk(str_srmmu, srmmu_name);
diff --git a/arch/sparc/mm/fault.c b/arch/sparc/mm/fault.c
index 3604c2e8670..a507e117466 100644
--- a/arch/sparc/mm/fault.c
+++ b/arch/sparc/mm/fault.c
@@ -191,7 +191,7 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
          * only copy the information from the master page table,
          * nothing more.
          */
-        if (!ARCH_SUN4C_SUN4 && address >= TASK_SIZE)
+        if (!ARCH_SUN4C && address >= TASK_SIZE)
                 goto vmalloc_fault;
 
         info.si_code = SEGV_MAPERR;
diff --git a/arch/sparc/mm/init.c b/arch/sparc/mm/init.c
index e103f1bb377..677c1e187a2 100644
--- a/arch/sparc/mm/init.c
+++ b/arch/sparc/mm/init.c
@@ -23,6 +23,7 @@
 #include <linux/highmem.h>
 #include <linux/bootmem.h>
 #include <linux/pagemap.h>
+#include <linux/poison.h>
 
 #include <asm/system.h>
 #include <asm/vac-ops.h>
@@ -480,6 +481,7 @@ void free_initmem (void)
         for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
                 struct page *p;
 
+                memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
                 p = virt_to_page(addr);
 
                 ClearPageReserved(p);
@@ -488,20 +490,26 @@ void free_initmem (void)
                 totalram_pages++;
                 num_physpages++;
         }
-        printk (KERN_INFO "Freeing unused kernel memory: %dk freed\n", (&__init_end - &__init_begin) >> 10);
+        printk(KERN_INFO "Freeing unused kernel memory: %dk freed\n",
+                (&__init_end - &__init_begin) >> 10);
 }
 
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
         if (start < end)
-                printk (KERN_INFO "Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
+                printk(KERN_INFO "Freeing initrd memory: %ldk freed\n",
+                        (end - start) >> 10);
         for (; start < end; start += PAGE_SIZE) {
-                struct page *p = virt_to_page(start);
+                struct page *p;
+
+                memset((void *)start, POISON_FREE_INITMEM, PAGE_SIZE);
+                p = virt_to_page(start);
 
                 ClearPageReserved(p);
                 init_page_count(p);
                 __free_page(p);
+                totalram_pages++;
                 num_physpages++;
         }
 }
diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c
index f167835db3d..daadf5f8805 100644
--- a/arch/sparc/mm/io-unit.c
+++ b/arch/sparc/mm/io-unit.c
@@ -12,10 +12,11 @@
 #include <linux/highmem.h>      /* pte_offset_map => kmap_atomic */
 #include <linux/bitops.h>
 #include <linux/scatterlist.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
-#include <asm/sbus.h>
 #include <asm/io.h>
 #include <asm/io-unit.h>
 #include <asm/mxcc.h>
@@ -34,13 +35,10 @@
 #define IOPERM        (IOUPTE_CACHE | IOUPTE_WRITE | IOUPTE_VALID)
 #define MKIOPTE(phys) __iopte((((phys)>>4) & IOUPTE_PAGE) | IOPERM)
 
-void __init
-iounit_init(int sbi_node, int io_node, struct sbus_bus *sbus)
+static void __init iounit_iommu_init(struct of_device *op)
 {
-        iopte_t *xpt, *xptend;
         struct iounit_struct *iounit;
-        struct linux_prom_registers iommu_promregs[PROMREG_MAX];
-        struct resource r;
+        iopte_t *xpt, *xptend;
 
         iounit = kzalloc(sizeof(struct iounit_struct), GFP_ATOMIC);
         if (!iounit) {
@@ -55,18 +53,13 @@ iounit_init(int sbi_node, int io_node, struct sbus_bus *sbus)
         iounit->rotor[1] = IOUNIT_BMAP2_START;
         iounit->rotor[2] = IOUNIT_BMAPM_START;
 
-        xpt = NULL;
-        if(prom_getproperty(sbi_node, "reg", (void *) iommu_promregs,
-                            sizeof(iommu_promregs)) != -1) {
-                prom_apply_generic_ranges(io_node, 0, iommu_promregs, 3);
-                memset(&r, 0, sizeof(r));
-                r.flags = iommu_promregs[2].which_io;
-                r.start = iommu_promregs[2].phys_addr;
-                xpt = (iopte_t *) sbus_ioremap(&r, 0, PAGE_SIZE * 16, "XPT");
+        xpt = of_ioremap(&op->resource[2], 0, PAGE_SIZE * 16, "XPT");
+        if (!xpt) {
+                prom_printf("SUN4D: Cannot map External Page Table.");
+                prom_halt();
         }
-        if(!xpt) panic("Cannot map External Page Table.");
         
-        sbus->ofdev.dev.archdata.iommu = iounit;
+        op->dev.archdata.iommu = iounit;
         iounit->page_table = xpt;
         spin_lock_init(&iounit->lock);
         
@@ -75,6 +68,25 @@ iounit_init(int sbi_node, int io_node, struct sbus_bus *sbus)
                 iopte_val(*xpt++) = 0;
 }
 
+static int __init iounit_init(void)
+{
+        extern void sun4d_init_sbi_irq(void);
+        struct device_node *dp;
+
+        for_each_node_by_name(dp, "sbi") {
+                struct of_device *op = of_find_device_by_node(dp);
+
+                iounit_iommu_init(op);
+                of_propagate_archdata(op);
+        }
+
+        sun4d_init_sbi_irq();
+
+        return 0;
+}
+
+subsys_initcall(iounit_init);
+
 /* One has to hold iounit->lock to call this */
 static unsigned long iounit_get_area(struct iounit_struct *iounit, unsigned long vaddr, int size)
 {
@@ -124,10 +136,10 @@ nexti:	scan = find_next_zero_bit(iounit->bmap, limit, scan);
         return vaddr;
 }
 
-static __u32 iounit_get_scsi_one(char *vaddr, unsigned long len, struct sbus_bus *sbus)
+static __u32 iounit_get_scsi_one(struct device *dev, char *vaddr, unsigned long len)
 {
+        struct iounit_struct *iounit = dev->archdata.iommu;
         unsigned long ret, flags;
-        struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
         
         spin_lock_irqsave(&iounit->lock, flags);
         ret = iounit_get_area(iounit, (unsigned long)vaddr, len);
@@ -135,10 +147,10 @@ static __u32 iounit_get_scsi_one(char *vaddr, unsigned long len, struct sbus_bus
         return ret;
 }
 
-static void iounit_get_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus *sbus)
+static void iounit_get_scsi_sgl(struct device *dev, struct scatterlist *sg, int sz)
 {
+        struct iounit_struct *iounit = dev->archdata.iommu;
         unsigned long flags;
-        struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
 
         /* FIXME: Cache some resolved pages - often several sg entries are to the same page */
         spin_lock_irqsave(&iounit->lock, flags);
@@ -151,10 +163,10 @@ static void iounit_get_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus
         spin_unlock_irqrestore(&iounit->lock, flags);
 }
 
-static void iounit_release_scsi_one(__u32 vaddr, unsigned long len, struct sbus_bus *sbus)
+static void iounit_release_scsi_one(struct device *dev, __u32 vaddr, unsigned long len)
 {
+        struct iounit_struct *iounit = dev->archdata.iommu;
         unsigned long flags;
-        struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
         
         spin_lock_irqsave(&iounit->lock, flags);
         len = ((vaddr & ~PAGE_MASK) + len + (PAGE_SIZE-1)) >> PAGE_SHIFT;
@@ -165,11 +177,11 @@ static void iounit_release_scsi_one(__u32 vaddr, unsigned long len, struct sbus_
         spin_unlock_irqrestore(&iounit->lock, flags);
 }
 
-static void iounit_release_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus *sbus)
+static void iounit_release_scsi_sgl(struct device *dev, struct scatterlist *sg, int sz)
 {
+        struct iounit_struct *iounit = dev->archdata.iommu;
         unsigned long flags;
         unsigned long vaddr, len;
-        struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
 
         spin_lock_irqsave(&iounit->lock, flags);
         while (sz != 0) {
@@ -185,12 +197,12 @@ static void iounit_release_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_
 }
 
 #ifdef CONFIG_SBUS
-static int iounit_map_dma_area(dma_addr_t *pba, unsigned long va, __u32 addr, int len)
+static int iounit_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned long va, __u32 addr, int len)
 {
+        struct iounit_struct *iounit = dev->archdata.iommu;
         unsigned long page, end;
         pgprot_t dvma_prot;
         iopte_t *iopte;
-        struct sbus_bus *sbus;
 
         *pba = addr;
 
@@ -212,12 +224,8 @@ static int iounit_map_dma_area(dma_addr_t *pba, unsigned long va, __u32 addr, in
                         
                         i = ((addr - IOUNIT_DMA_BASE) >> PAGE_SHIFT);
 
-                        for_each_sbus(sbus) {
-                                struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
-
-                                iopte = (iopte_t *)(iounit->page_table + i);
-                                *iopte = MKIOPTE(__pa(page));
-                        }
+                        iopte = (iopte_t *)(iounit->page_table + i);
+                        *iopte = MKIOPTE(__pa(page));
                 }
                 addr += PAGE_SIZE;
                 va += PAGE_SIZE;
@@ -228,23 +236,10 @@ static int iounit_map_dma_area(dma_addr_t *pba, unsigned long va, __u32 addr, in
         return 0;
 }
 
-static void iounit_unmap_dma_area(unsigned long addr, int len)
+static void iounit_unmap_dma_area(struct device *dev, unsigned long addr, int len)
 {
         /* XXX Somebody please fill this in */
 }
-
-/* XXX We do not pass sbus device here, bad. */
-static struct page *iounit_translate_dvma(unsigned long addr)
-{
-        struct sbus_bus *sbus = sbus_root;      /* They are all the same */
-        struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
-        int i;
-        iopte_t *iopte;
-
-        i = ((addr - IOUNIT_DMA_BASE) >> PAGE_SHIFT);
-        iopte = (iopte_t *)(iounit->page_table + i);
-        return pfn_to_page(iopte_val(*iopte) >> (PAGE_SHIFT-4)); /* XXX sun4d guru, help */
-}
 #endif
 
 static char *iounit_lockarea(char *vaddr, unsigned long len)
@@ -271,54 +266,5 @@ void __init ld_mmu_iounit(void)
 #ifdef CONFIG_SBUS
         BTFIXUPSET_CALL(mmu_map_dma_area, iounit_map_dma_area, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(mmu_unmap_dma_area, iounit_unmap_dma_area, BTFIXUPCALL_NORM);
-        BTFIXUPSET_CALL(mmu_translate_dvma, iounit_translate_dvma, BTFIXUPCALL_NORM);
 #endif
 }
-
-__u32 iounit_map_dma_init(struct sbus_bus *sbus, int size)
-{
-        int i, j, k, npages;
-        unsigned long rotor, scan, limit;
-        unsigned long flags;
-        __u32 ret;
-        struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
-
-        npages = (size + (PAGE_SIZE-1)) >> PAGE_SHIFT;
-        i = 0x0213;
-        spin_lock_irqsave(&iounit->lock, flags);
-next:   j = (i & 15);
-        rotor = iounit->rotor[j - 1];
-        limit = iounit->limit[j];
-        scan = rotor;
-nexti:  scan = find_next_zero_bit(iounit->bmap, limit, scan);
-        if (scan + npages > limit) {
-                if (limit != rotor) {
-                        limit = rotor;
-                        scan = iounit->limit[j - 1];
-                        goto nexti;
-                }
-                i >>= 4;
-                if (!(i & 15))
-                        panic("iounit_map_dma_init: Couldn't find free iopte slots for %d bytes\n", size);
-                goto next;
-        }
-        for (k = 1, scan++; k < npages; k++)
-                if (test_bit(scan++, iounit->bmap))
-                        goto nexti;
-        iounit->rotor[j - 1] = (scan < limit) ? scan : iounit->limit[j - 1];
-        scan -= npages;
-        ret = IOUNIT_DMA_BASE + (scan << PAGE_SHIFT);
-        for (k = 0; k < npages; k++, scan++)
-                set_bit(scan, iounit->bmap);
-        spin_unlock_irqrestore(&iounit->lock, flags);
-        return ret;
-}
-
-__u32 iounit_map_dma_page(__u32 vaddr, void *addr, struct sbus_bus *sbus)
-{
-        int scan = (vaddr - IOUNIT_DMA_BASE) >> PAGE_SHIFT;
-        struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
-        
-        iounit->page_table[scan] = MKIOPTE(__pa(((unsigned long)addr) & PAGE_MASK));
-        return vaddr + (((unsigned long)addr) & ~PAGE_MASK);
-}
diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c
index 4b934270f05..e7a499e3aa3 100644
--- a/arch/sparc/mm/iommu.c
+++ b/arch/sparc/mm/iommu.c
@@ -13,10 +13,11 @@
 #include <linux/slab.h>
 #include <linux/highmem.h>      /* pte_offset_map => kmap_atomic */
 #include <linux/scatterlist.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
-#include <asm/sbus.h>
 #include <asm/io.h>
 #include <asm/mxcc.h>
 #include <asm/mbus.h>
@@ -55,30 +56,21 @@ static pgprot_t dvma_prot;		/* Consistent mapping pte flags */
 #define IOPERM        (IOPTE_CACHE | IOPTE_WRITE | IOPTE_VALID)
 #define MKIOPTE(pfn, perm) (((((pfn)<<8) & IOPTE_PAGE) | (perm)) & ~IOPTE_WAZ)
 
-void __init
-iommu_init(int iommund, struct sbus_bus *sbus)
+static void __init sbus_iommu_init(struct of_device *op)
 {
-        unsigned int impl, vers;
-        unsigned long tmp;
         struct iommu_struct *iommu;
-        struct linux_prom_registers iommu_promregs[PROMREG_MAX];
-        struct resource r;
+        unsigned int impl, vers;
         unsigned long *bitmap;
+        unsigned long tmp;
 
         iommu = kmalloc(sizeof(struct iommu_struct), GFP_ATOMIC);
         if (!iommu) {
                 prom_printf("Unable to allocate iommu structure\n");
                 prom_halt();
         }
-        iommu->regs = NULL;
-        if (prom_getproperty(iommund, "reg", (void *) iommu_promregs,
-                         sizeof(iommu_promregs)) != -1) {
-                memset(&r, 0, sizeof(r));
-                r.flags = iommu_promregs[0].which_io;
-                r.start = iommu_promregs[0].phys_addr;
-                iommu->regs = (struct iommu_regs *)
-                        sbus_ioremap(&r, 0, PAGE_SIZE * 3, "iommu_regs");
-        }
+
+        iommu->regs = of_ioremap(&op->resource[0], 0, PAGE_SIZE * 3,
+                                 "iommu_regs");
         if (!iommu->regs) {
                 prom_printf("Cannot map IOMMU registers\n");
                 prom_halt();
@@ -128,13 +120,29 @@ iommu_init(int iommund, struct sbus_bus *sbus)
         else
                 iommu->usemap.num_colors = 1;
 
-        printk("IOMMU: impl %d vers %d table 0x%p[%d B] map [%d b]\n",
-            impl, vers, iommu->page_table,
-            (int)(IOMMU_NPTES*sizeof(iopte_t)), (int)IOMMU_NPTES);
+        printk(KERN_INFO "IOMMU: impl %d vers %d table 0x%p[%d B] map [%d b]\n",
+               impl, vers, iommu->page_table,
+               (int)(IOMMU_NPTES*sizeof(iopte_t)), (int)IOMMU_NPTES);
+
+        op->dev.archdata.iommu = iommu;
+}
+
+static int __init iommu_init(void)
+{
+        struct device_node *dp;
+
+        for_each_node_by_name(dp, "iommu") {
+                struct of_device *op = of_find_device_by_node(dp);
+
+                sbus_iommu_init(op);
+                of_propagate_archdata(op);
+        }
 
-        sbus->ofdev.dev.archdata.iommu = iommu;
+        return 0;
 }
 
+subsys_initcall(iommu_init);
+
 /* This begs to be btfixup-ed by srmmu. */
 /* Flush the iotlb entries to ram. */
 /* This could be better if we didn't have to flush whole pages. */
@@ -164,9 +172,9 @@ static void iommu_flush_iotlb(iopte_t *iopte, unsigned int niopte)
         }
 }
 
-static u32 iommu_get_one(struct page *page, int npages, struct sbus_bus *sbus)
+static u32 iommu_get_one(struct device *dev, struct page *page, int npages)
 {
-        struct iommu_struct *iommu = sbus->ofdev.dev.archdata.iommu;
+        struct iommu_struct *iommu = dev->archdata.iommu;
         int ioptex;
         iopte_t *iopte, *iopte0;
         unsigned int busa, busa0;
@@ -194,8 +202,7 @@ static u32 iommu_get_one(struct page *page, int npages, struct sbus_bus *sbus)
         return busa0;
 }
 
-static u32 iommu_get_scsi_one(char *vaddr, unsigned int len,
-    struct sbus_bus *sbus)
+static u32 iommu_get_scsi_one(struct device *dev, char *vaddr, unsigned int len)
 {
         unsigned long off;
         int npages;
@@ -205,22 +212,22 @@ static u32 iommu_get_scsi_one(char *vaddr, unsigned int len,
         off = (unsigned long)vaddr & ~PAGE_MASK;
         npages = (off + len + PAGE_SIZE-1) >> PAGE_SHIFT;
         page = virt_to_page((unsigned long)vaddr & PAGE_MASK);
-        busa = iommu_get_one(page, npages, sbus);
+        busa = iommu_get_one(dev, page, npages);
         return busa + off;
 }
 
-static __u32 iommu_get_scsi_one_noflush(char *vaddr, unsigned long len, struct sbus_bus *sbus)
+static __u32 iommu_get_scsi_one_noflush(struct device *dev, char *vaddr, unsigned long len)
 {
-        return iommu_get_scsi_one(vaddr, len, sbus);
+        return iommu_get_scsi_one(dev, vaddr, len);
 }
 
-static __u32 iommu_get_scsi_one_gflush(char *vaddr, unsigned long len, struct sbus_bus *sbus)
+static __u32 iommu_get_scsi_one_gflush(struct device *dev, char *vaddr, unsigned long len)
 {
         flush_page_for_dma(0);
-        return iommu_get_scsi_one(vaddr, len, sbus);
+        return iommu_get_scsi_one(dev, vaddr, len);
 }
 
-static __u32 iommu_get_scsi_one_pflush(char *vaddr, unsigned long len, struct sbus_bus *sbus)
+static __u32 iommu_get_scsi_one_pflush(struct device *dev, char *vaddr, unsigned long len)
 {
         unsigned long page = ((unsigned long) vaddr) & PAGE_MASK;
 
@@ -228,23 +235,23 @@ static __u32 iommu_get_scsi_one_pflush(char *vaddr, unsigned long len, struct sb
                 flush_page_for_dma(page);
                 page += PAGE_SIZE;
         }
-        return iommu_get_scsi_one(vaddr, len, sbus);
+        return iommu_get_scsi_one(dev, vaddr, len);
 }
 
-static void iommu_get_scsi_sgl_noflush(struct scatterlist *sg, int sz, struct sbus_bus *sbus)
+static void iommu_get_scsi_sgl_noflush(struct device *dev, struct scatterlist *sg, int sz)
 {
         int n;
 
         while (sz != 0) {
                 --sz;
                 n = (sg->length + sg->offset + PAGE_SIZE-1) >> PAGE_SHIFT;
-                sg->dvma_address = iommu_get_one(sg_page(sg), n, sbus) + sg->offset;
+                sg->dvma_address = iommu_get_one(dev, sg_page(sg), n) + sg->offset;
                 sg->dvma_length = (__u32) sg->length;
                 sg = sg_next(sg);
         }
 }
 
-static void iommu_get_scsi_sgl_gflush(struct scatterlist *sg, int sz, struct sbus_bus *sbus)
+static void iommu_get_scsi_sgl_gflush(struct device *dev, struct scatterlist *sg, int sz)
 {
         int n;
 
@@ -252,13 +259,13 @@ static void iommu_get_scsi_sgl_gflush(struct scatterlist *sg, int sz, struct sbu
         while (sz != 0) {
                 --sz;
                 n = (sg->length + sg->offset + PAGE_SIZE-1) >> PAGE_SHIFT;
-                sg->dvma_address = iommu_get_one(sg_page(sg), n, sbus) + sg->offset;
+                sg->dvma_address = iommu_get_one(dev, sg_page(sg), n) + sg->offset;
                 sg->dvma_length = (__u32) sg->length;
                 sg = sg_next(sg);
         }
 }
 
-static void iommu_get_scsi_sgl_pflush(struct scatterlist *sg, int sz, struct sbus_bus *sbus)
+static void iommu_get_scsi_sgl_pflush(struct device *dev, struct scatterlist *sg, int sz)
 {
         unsigned long page, oldpage = 0;
         int n, i;
@@ -283,15 +290,15 @@ static void iommu_get_scsi_sgl_pflush(struct scatterlist *sg, int sz, struct sbu
                         }
                 }
 
-                sg->dvma_address = iommu_get_one(sg_page(sg), n, sbus) + sg->offset;
+                sg->dvma_address = iommu_get_one(dev, sg_page(sg), n) + sg->offset;
                 sg->dvma_length = (__u32) sg->length;
                 sg = sg_next(sg);
         }
 }
 
-static void iommu_release_one(u32 busa, int npages, struct sbus_bus *sbus)
+static void iommu_release_one(struct device *dev, u32 busa, int npages)
 {
-        struct iommu_struct *iommu = sbus->ofdev.dev.archdata.iommu;
+        struct iommu_struct *iommu = dev->archdata.iommu;
         int ioptex;
         int i;
 
@@ -305,17 +312,17 @@ static void iommu_release_one(u32 busa, int npages, struct sbus_bus *sbus)
         bit_map_clear(&iommu->usemap, ioptex, npages);
 }
 
-static void iommu_release_scsi_one(__u32 vaddr, unsigned long len, struct sbus_bus *sbus)
+static void iommu_release_scsi_one(struct device *dev, __u32 vaddr, unsigned long len)
 {
         unsigned long off;
         int npages;
 
         off = vaddr & ~PAGE_MASK;
         npages = (off + len + PAGE_SIZE-1) >> PAGE_SHIFT;
-        iommu_release_one(vaddr & PAGE_MASK, npages, sbus);
+        iommu_release_one(dev, vaddr & PAGE_MASK, npages);
 }
 
-static void iommu_release_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus *sbus)
+static void iommu_release_scsi_sgl(struct device *dev, struct scatterlist *sg, int sz)
 {
         int n;
 
@@ -323,18 +330,18 @@ static void iommu_release_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_b
                 --sz;
 
                 n = (sg->length + sg->offset + PAGE_SIZE-1) >> PAGE_SHIFT;
-                iommu_release_one(sg->dvma_address & PAGE_MASK, n, sbus);
+                iommu_release_one(dev, sg->dvma_address & PAGE_MASK, n);
                 sg->dvma_address = 0x21212121;
                 sg = sg_next(sg);
         }
 }
 
 #ifdef CONFIG_SBUS
-static int iommu_map_dma_area(dma_addr_t *pba, unsigned long va,
-    unsigned long addr, int len)
+static int iommu_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned long va,
+                              unsigned long addr, int len)
 {
+        struct iommu_struct *iommu = dev->archdata.iommu;
         unsigned long page, end;
-        struct iommu_struct *iommu = sbus_root->ofdev.dev.archdata.iommu;
         iopte_t *iopte = iommu->page_table;
         iopte_t *first;
         int ioptex;
@@ -397,9 +404,9 @@ static int iommu_map_dma_area(dma_addr_t *pba, unsigned long va,
         return 0;
 }
 
-static void iommu_unmap_dma_area(unsigned long busa, int len)
+static void iommu_unmap_dma_area(struct device *dev, unsigned long busa, int len)
 {
-        struct iommu_struct *iommu = sbus_root->ofdev.dev.archdata.iommu;
+        struct iommu_struct *iommu = dev->archdata.iommu;
         iopte_t *iopte = iommu->page_table;
         unsigned long end;
         int ioptex = (busa - iommu->start) >> PAGE_SHIFT;
@@ -417,15 +424,6 @@ static void iommu_unmap_dma_area(unsigned long busa, int len)
         iommu_invalidate(iommu->regs);
         bit_map_clear(&iommu->usemap, ioptex, len >> PAGE_SHIFT);
 }
-
-static struct page *iommu_translate_dvma(unsigned long busa)
-{
-        struct iommu_struct *iommu = sbus_root->ofdev.dev.archdata.iommu;
-        iopte_t *iopte = iommu->page_table;
-
-        iopte += ((busa - iommu->start) >> PAGE_SHIFT);
-        return pfn_to_page((iopte_val(*iopte) & IOPTE_PAGE) >> (PAGE_SHIFT-4));
-}
 #endif
 
 static char *iommu_lockarea(char *vaddr, unsigned long len)
@@ -461,7 +459,6 @@ void __init ld_mmu_iommu(void)
 #ifdef CONFIG_SBUS
         BTFIXUPSET_CALL(mmu_map_dma_area, iommu_map_dma_area, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(mmu_unmap_dma_area, iommu_unmap_dma_area, BTFIXUPCALL_NORM);
-        BTFIXUPSET_CALL(mmu_translate_dvma, iommu_translate_dvma, BTFIXUPCALL_NORM);
 #endif
 
         if (viking_mxcc_present || srmmu_modtype == HyperSparc) {
diff --git a/arch/sparc/mm/nosrmmu.c b/arch/sparc/mm/nosrmmu.c
deleted file mode 100644
index 3701f70fc30..00000000000
--- a/arch/sparc/mm/nosrmmu.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * nosrmmu.c: This file is a bunch of dummies for sun4 compiles, 
- *         so that it does not need srmmu and avoid ifdefs.
- *
- * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- */
-
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <asm/mbus.h>
-#include <asm/sbus.h>
-
-static char shouldnothappen[] __initdata = "SUN4 kernel can only run on SUN4\n";
-
-enum mbus_module srmmu_modtype;
-void *srmmu_nocache_pool;
-
-int vac_cache_size = 0;
-
-static void __init should_not_happen(void)
-{
-        prom_printf(shouldnothappen);
-        prom_halt();
-}
-
-void __init srmmu_frob_mem_map(unsigned long start_mem)
-{
-        should_not_happen();
-}
-
-unsigned long __init srmmu_paging_init(unsigned long start_mem, unsigned long end_mem)
-{
-        should_not_happen();
-        return 0;
-}
-
-void __init ld_mmu_srmmu(void)
-{
-        should_not_happen();
-}
-
-void srmmu_mapioaddr(unsigned long physaddr, unsigned long virt_addr, int bus_type, int rdonly)
-{
-}
-
-void srmmu_unmapioaddr(unsigned long virt_addr)
-{
-}
-
-__u32 iounit_map_dma_init(struct sbus_bus *sbus, int size)
-{
-        return 0;
-}
-
-__u32 iounit_map_dma_page(__u32 vaddr, void *addr, struct sbus_bus *sbus)
-{
-        return 0;
-}
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index ee30462598f..6a5d7cabc04 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -31,7 +31,6 @@
 #include <asm/mbus.h>
 #include <asm/cache.h>
 #include <asm/oplib.h>
-#include <asm/sbus.h>
 #include <asm/asi.h>
 #include <asm/msi.h>
 #include <asm/mmu_context.h>
diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c
index d1782f6368b..fe65aeeb394 100644
--- a/arch/sparc/mm/sun4c.c
+++ b/arch/sparc/mm/sun4c.c
@@ -31,7 +31,6 @@
 #include <asm/oplib.h>
 #include <asm/openprom.h>
 #include <asm/mmu_context.h>
-#include <asm/sun4paddr.h>
 #include <asm/highmem.h>
 #include <asm/btfixup.h>
 #include <asm/cacheflush.h>
@@ -52,15 +51,11 @@ extern int num_segmaps, num_contexts;
 
 extern unsigned long page_kernel;
 
-#ifdef CONFIG_SUN4
-#define SUN4C_VAC_SIZE sun4c_vacinfo.num_bytes
-#else
 /* That's it, we prom_halt() on sun4c if the cache size is something other than 65536.
  * So let's save some cycles and just use that everywhere except for that bootup
  * sanity check.
  */
 #define SUN4C_VAC_SIZE 65536
-#endif
 
 #define SUN4C_KERNEL_BUCKETS 32
 
@@ -285,75 +280,32 @@ void __init sun4c_probe_vac(void)
 {
         sun4c_disable_vac();
 
-        if (ARCH_SUN4) {
-                switch (idprom->id_machtype) {
-
-                case (SM_SUN4|SM_4_110):
-                        sun4c_vacinfo.type = VAC_NONE;
-                        sun4c_vacinfo.num_bytes = 0;
-                        sun4c_vacinfo.linesize = 0;
-                        sun4c_vacinfo.do_hwflushes = 0;
-                        prom_printf("No VAC. Get some bucks and buy a real computer.");
-                        prom_halt();
-                        break;
-
-                case (SM_SUN4|SM_4_260):
-                        sun4c_vacinfo.type = VAC_WRITE_BACK;
-                        sun4c_vacinfo.num_bytes = 128 * 1024;
-                        sun4c_vacinfo.linesize = 16;
-                        sun4c_vacinfo.do_hwflushes = 0;
-                        break;
-
-                case (SM_SUN4|SM_4_330):
-                        sun4c_vacinfo.type = VAC_WRITE_THROUGH;
-                        sun4c_vacinfo.num_bytes = 128 * 1024;
-                        sun4c_vacinfo.linesize = 16;
-                        sun4c_vacinfo.do_hwflushes = 0;
-                        break;
-
-                case (SM_SUN4|SM_4_470):
-                        sun4c_vacinfo.type = VAC_WRITE_BACK;
-                        sun4c_vacinfo.num_bytes = 128 * 1024;
-                        sun4c_vacinfo.linesize = 32;
-                        sun4c_vacinfo.do_hwflushes = 0;
-                        break;
-
-                default:
-                        prom_printf("Cannot initialize VAC - weird sun4 model idprom->id_machtype = %d", idprom->id_machtype);
-                        prom_halt();
-                };
+        if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS1)) ||
+            (idprom->id_machtype == (SM_SUN4C | SM_4C_SS1PLUS))) {
+                /* PROM on SS1 lacks this info, to be super safe we
+                 * hard code it here since this arch is cast in stone.
+                 */
+                sun4c_vacinfo.num_bytes = 65536;
+                sun4c_vacinfo.linesize = 16;
         } else {
-                sun4c_vacinfo.type = VAC_WRITE_THROUGH;
+                sun4c_vacinfo.num_bytes =
+                 prom_getintdefault(prom_root_node, "vac-size", 65536);
+                sun4c_vacinfo.linesize =
+                 prom_getintdefault(prom_root_node, "vac-linesize", 16);
+        }
+        sun4c_vacinfo.do_hwflushes =
+         prom_getintdefault(prom_root_node, "vac-hwflush", 0);
 
-                if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS1)) ||
-                    (idprom->id_machtype == (SM_SUN4C | SM_4C_SS1PLUS))) {
-                        /* PROM on SS1 lacks this info, to be super safe we
-                         * hard code it here since this arch is cast in stone.
-                         */
-                        sun4c_vacinfo.num_bytes = 65536;
-                        sun4c_vacinfo.linesize = 16;
-                } else {
-                        sun4c_vacinfo.num_bytes =
-                         prom_getintdefault(prom_root_node, "vac-size", 65536);
-                        sun4c_vacinfo.linesize =
-                         prom_getintdefault(prom_root_node, "vac-linesize", 16);
-                }
+        if (sun4c_vacinfo.do_hwflushes == 0)
                 sun4c_vacinfo.do_hwflushes =
-                 prom_getintdefault(prom_root_node, "vac-hwflush", 0);
-
-                if (sun4c_vacinfo.do_hwflushes == 0)
-                        sun4c_vacinfo.do_hwflushes =
-                         prom_getintdefault(prom_root_node, "vac_hwflush", 0);
+                 prom_getintdefault(prom_root_node, "vac_hwflush", 0);
 
-                if (sun4c_vacinfo.num_bytes != 65536) {
-                        prom_printf("WEIRD Sun4C VAC cache size, "
-                                    "tell sparclinux@vger.kernel.org");
-                        prom_halt();
-                }
+        if (sun4c_vacinfo.num_bytes != 65536) {
+                prom_printf("WEIRD Sun4C VAC cache size, "
+                            "tell sparclinux@vger.kernel.org");
+                prom_halt();
         }
 
-        sun4c_vacinfo.num_lines =
-                (sun4c_vacinfo.num_bytes / sun4c_vacinfo.linesize);
         switch (sun4c_vacinfo.linesize) {
         case 16:
                 sun4c_vacinfo.log2lsize = 4;
@@ -447,49 +399,18 @@ static void __init patch_kernel_fault_handler(void)
 
 static void __init sun4c_probe_mmu(void)
 {
-        if (ARCH_SUN4) {
-                switch (idprom->id_machtype) {
-                case (SM_SUN4|SM_4_110):
-                        prom_printf("No support for 4100 yet\n");
-                        prom_halt();
-                        num_segmaps = 256;
-                        num_contexts = 8;
-                        break;
-
-                case (SM_SUN4|SM_4_260):
-                        /* should be 512 segmaps. when it get fixed */
-                        num_segmaps = 256;
-                        num_contexts = 16;
-                        break;
-
-                case (SM_SUN4|SM_4_330):
-                        num_segmaps = 256;
-                        num_contexts = 16;
-                        break;
-
-                case (SM_SUN4|SM_4_470):
-                        /* should be 1024 segmaps. when it get fixed */
-                        num_segmaps = 256;
-                        num_contexts = 64;
-                        break;
-                default:
-                        prom_printf("Invalid SUN4 model\n");
-                        prom_halt();
-                };
+        if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS1)) ||
+            (idprom->id_machtype == (SM_SUN4C | SM_4C_SS1PLUS))) {
+                /* Hardcode these just to be safe, PROM on SS1 does
+                * not have this info available in the root node.
+                */
+                num_segmaps = 128;
+                num_contexts = 8;
         } else {
-                if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS1)) ||
-                    (idprom->id_machtype == (SM_SUN4C | SM_4C_SS1PLUS))) {
-                        /* Hardcode these just to be safe, PROM on SS1 does
-                        * not have this info available in the root node.
-                        */
-                        num_segmaps = 128;
-                        num_contexts = 8;
-                } else {
-                        num_segmaps =
-                            prom_getintdefault(prom_root_node, "mmu-npmg", 128);
-                        num_contexts =
-                            prom_getintdefault(prom_root_node, "mmu-nctx", 0x8);
-                }
+                num_segmaps =
+                    prom_getintdefault(prom_root_node, "mmu-npmg", 128);
+                num_contexts =
+                    prom_getintdefault(prom_root_node, "mmu-nctx", 0x8);
         }
         patch_kernel_fault_handler();
 }
@@ -501,18 +422,14 @@ void __init sun4c_probe_memerr_reg(void)
         int node;
         struct linux_prom_registers regs[1];
 
-        if (ARCH_SUN4) {
-                sun4c_memerr_reg = ioremap(sun4_memreg_physaddr, PAGE_SIZE);
-        } else {
-                node = prom_getchild(prom_root_node);
-                node = prom_searchsiblings(prom_root_node, "memory-error");
-                if (!node)
-                        return;
-                if (prom_getproperty(node, "reg", (char *)regs, sizeof(regs)) <= 0)
-                        return;
-                /* hmm I think regs[0].which_io is zero here anyways */
-                sun4c_memerr_reg = ioremap(regs[0].phys_addr, regs[0].reg_size);
-        }
+        node = prom_getchild(prom_root_node);
+        node = prom_searchsiblings(prom_root_node, "memory-error");
+        if (!node)
+                return;
+        if (prom_getproperty(node, "reg", (char *)regs, sizeof(regs)) <= 0)
+                return;
+        /* hmm I think regs[0].which_io is zero here anyways */
+        sun4c_memerr_reg = ioremap(regs[0].phys_addr, regs[0].reg_size);
 }
 
 static inline void sun4c_init_ss2_cache_bug(void)
@@ -521,7 +438,6 @@ static inline void sun4c_init_ss2_cache_bug(void)
 
         if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS2)) ||
             (idprom->id_machtype == (SM_SUN4C | SM_4C_IPX)) ||
-            (idprom->id_machtype == (SM_SUN4 | SM_4_330)) ||
             (idprom->id_machtype == (SM_SUN4C | SM_4C_ELC))) {
                 /* Whee.. */
                 printk("SS2 cache bug detected, uncaching trap table page\n");
@@ -532,8 +448,8 @@ static inline void sun4c_init_ss2_cache_bug(void)
 }
 
 /* Addr is always aligned on a page boundary for us already. */
-static int sun4c_map_dma_area(dma_addr_t *pba, unsigned long va,
-    unsigned long addr, int len)
+static int sun4c_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned long va,
+                              unsigned long addr, int len)
 {
         unsigned long page, end;
 
@@ -555,14 +471,7 @@ static int sun4c_map_dma_area(dma_addr_t *pba, unsigned long va,
         return 0;
 }
 
-static struct page *sun4c_translate_dvma(unsigned long busa)
-{
-        /* Fortunately for us, bus_addr == uncached_virt in sun4c. */
-        unsigned long pte = sun4c_get_pte(busa);
-        return pfn_to_page(pte & SUN4C_PFN_MASK);
-}
-
-static void sun4c_unmap_dma_area(unsigned long busa, int len)
+static void sun4c_unmap_dma_area(struct device *dev, unsigned long busa, int len)
 {
         /* Fortunately for us, bus_addr == uncached_virt in sun4c. */
         /* XXX Implement this */
@@ -624,11 +533,7 @@ static inline void sun4c_init_map_kernelprom(unsigned long kernel_end)
 {
         unsigned long vaddr;
         unsigned char pseg, ctx;
-#ifdef CONFIG_SUN4
-        /* sun4/110 and 260 have no kadb. */
-        if ((idprom->id_machtype != (SM_SUN4 | SM_4_260)) && 
-            (idprom->id_machtype != (SM_SUN4 | SM_4_110))) {
-#endif
+
         for (vaddr = KADB_DEBUGGER_BEGVM;
              vaddr < LINUX_OPPROM_ENDVM;
              vaddr += SUN4C_REAL_PGDIR_SIZE) {
@@ -640,9 +545,7 @@ static inline void sun4c_init_map_kernelprom(unsigned long kernel_end)
                         fix_permissions(vaddr, _SUN4C_PAGE_PRIV, 0);
                 }
         }
-#ifdef CONFIG_SUN4
-        }
-#endif
+
         for (vaddr = KERNBASE; vaddr < kernel_end; vaddr += SUN4C_REAL_PGDIR_SIZE) {
                 pseg = sun4c_get_segmap(vaddr);
                 mmu_entry_pool[pseg].locked = 1;
@@ -1048,14 +951,10 @@ static struct thread_info *sun4c_alloc_thread_info(void)
          * so we must flush the cache to guarantee consistency.
          */
         sun4c_flush_page(pages);
-#ifndef CONFIG_SUN4     
         sun4c_flush_page(pages + PAGE_SIZE);
-#endif
 
         sun4c_put_pte(addr, BUCKET_PTE(pages));
-#ifndef CONFIG_SUN4     
         sun4c_put_pte(addr + PAGE_SIZE, BUCKET_PTE(pages + PAGE_SIZE));
-#endif
 
 #ifdef CONFIG_DEBUG_STACK_USAGE
         memset((void *)addr, 0, PAGE_SIZE << THREAD_INFO_ORDER);
@@ -1072,13 +971,11 @@ static void sun4c_free_thread_info(struct thread_info *ti)
 
         /* We are deleting a mapping, so the flush here is mandatory. */
         sun4c_flush_page(tiaddr);
-#ifndef CONFIG_SUN4     
         sun4c_flush_page(tiaddr + PAGE_SIZE);
-#endif
+
         sun4c_put_pte(tiaddr, 0);
-#ifndef CONFIG_SUN4     
         sun4c_put_pte(tiaddr + PAGE_SIZE, 0);
-#endif
+
         sun4c_bucket[entry] = BUCKET_EMPTY;
         if (entry < sun4c_lowbucket_avail)
                 sun4c_lowbucket_avail = entry;
@@ -1211,7 +1108,7 @@ static void sun4c_unlockarea(char *vaddr, unsigned long size)
  * by implication and fool the page locking code above
  * if passed to by mistake.
  */
-static __u32 sun4c_get_scsi_one(char *bufptr, unsigned long len, struct sbus_bus *sbus)
+static __u32 sun4c_get_scsi_one(struct device *dev, char *bufptr, unsigned long len)
 {
         unsigned long page;
 
@@ -1223,7 +1120,7 @@ static __u32 sun4c_get_scsi_one(char *bufptr, unsigned long len, struct sbus_bus
         return (__u32)sun4c_lockarea(bufptr, len);
 }
 
-static void sun4c_get_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus *sbus)
+static void sun4c_get_scsi_sgl(struct device *dev, struct scatterlist *sg, int sz)
 {
         while (sz != 0) {
                 --sz;
@@ -1233,14 +1130,14 @@ static void sun4c_get_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus *
         }
 }
 
-static void sun4c_release_scsi_one(__u32 bufptr, unsigned long len, struct sbus_bus *sbus)
+static void sun4c_release_scsi_one(struct device *dev, __u32 bufptr, unsigned long len)
 {
         if (bufptr < sun4c_iobuffer_start)
                 return; /* On kernel stack or similar, see above */
         sun4c_unlockarea((char *)bufptr, len);
 }
 
-static void sun4c_release_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus *sbus)
+static void sun4c_release_scsi_sgl(struct device *dev, struct scatterlist *sg, int sz)
 {
         while (sz != 0) {
                 --sz;
@@ -2263,7 +2160,6 @@ void __init ld_mmu_sun4c(void)
 
         BTFIXUPSET_CALL(mmu_map_dma_area, sun4c_map_dma_area, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(mmu_unmap_dma_area, sun4c_unmap_dma_area, BTFIXUPCALL_NORM);
-        BTFIXUPSET_CALL(mmu_translate_dvma, sun4c_translate_dvma, BTFIXUPCALL_NORM);
 
         BTFIXUPSET_CALL(sparc_mapiorange, sun4c_mapiorange, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(sparc_unmapiorange, sun4c_unmapiorange, BTFIXUPCALL_NORM);
diff --git a/arch/sparc/prom/Makefile b/arch/sparc/prom/Makefile
index 7f5eacfcfbc..8f7e18546c9 100644
--- a/arch/sparc/prom/Makefile
+++ b/arch/sparc/prom/Makefile
@@ -4,5 +4,3 @@
 
 lib-y := bootstr.o devmap.o devops.o init.o memory.o misc.o mp.o \
          palloc.o ranges.o segment.o console.o printf.o tree.o
-
-lib-$(CONFIG_SUN4) += sun4prom.o
diff --git a/arch/sparc/prom/bootstr.c b/arch/sparc/prom/bootstr.c
index 5a35c768ff7..916831da7e6 100644
--- a/arch/sparc/prom/bootstr.c
+++ b/arch/sparc/prom/bootstr.c
@@ -6,15 +6,12 @@
 
 #include <linux/string.h>
 #include <asm/oplib.h>
-#include <asm/sun4prom.h>
 #include <linux/init.h>
 
 #define BARG_LEN  256
 static char barg_buf[BARG_LEN] = { 0 };
 static char fetched __initdata = 0;
 
-extern linux_sun4_romvec *sun4_romvec;
-
 char * __init
 prom_getbootargs(void)
 {
@@ -28,7 +25,6 @@ prom_getbootargs(void)
 
         switch(prom_vers) {
         case PROM_V0:
-        case PROM_SUN4:
                 cp = barg_buf;
                 /* Start from 1 and go over fd(0,0,0)kernel */
                 for(iter = 1; iter < 8; iter++) {
diff --git a/arch/sparc/prom/console.c b/arch/sparc/prom/console.c
index 790057a3461..b3075d73fc1 100644
--- a/arch/sparc/prom/console.c
+++ b/arch/sparc/prom/console.c
@@ -10,7 +10,6 @@
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <asm/openprom.h>
-#include <asm/sun4prom.h>
 #include <asm/oplib.h>
 #include <asm/system.h>
 #include <linux/string.h>
@@ -30,7 +29,6 @@ prom_nbgetchar(void)
         spin_lock_irqsave(&prom_lock, flags);
         switch(prom_vers) {
         case PROM_V0:
-        case PROM_SUN4:
                 i = (*(romvec->pv_nbgetchar))();
                 break;
         case PROM_V2:
@@ -63,7 +61,6 @@ prom_nbputchar(char c)
         spin_lock_irqsave(&prom_lock, flags);
         switch(prom_vers) {
         case PROM_V0:
-        case PROM_SUN4:
                 i = (*(romvec->pv_nbputchar))(c);
                 break;
         case PROM_V2:
diff --git a/arch/sparc/prom/init.c b/arch/sparc/prom/init.c
index 729f8706694..873217c6d82 100644
--- a/arch/sparc/prom/init.c
+++ b/arch/sparc/prom/init.c
@@ -11,12 +11,10 @@
 
 #include <asm/openprom.h>
 #include <asm/oplib.h>
-#include <asm/sun4prom.h>
 
 struct linux_romvec *romvec;
 enum prom_major_version prom_vers;
 unsigned int prom_rev, prom_prev;
-linux_sun4_romvec *sun4_romvec;
 
 /* The root node of the prom device tree. */
 int prom_root_node;
@@ -34,10 +32,6 @@ extern void prom_ranges_init(void);
 
 void __init prom_init(struct linux_romvec *rp)
 {
-#ifdef CONFIG_SUN4
-        extern struct linux_romvec *sun4_prom_init(void);
-        rp = sun4_prom_init();
-#endif
         romvec = rp;
 
         switch(romvec->pv_romvers) {
@@ -50,9 +44,6 @@ void __init prom_init(struct linux_romvec *rp)
         case 3:
                 prom_vers = PROM_V3;
                 break;
-        case 40:
-                prom_vers = PROM_SUN4;
-                break;
         default:
                 prom_printf("PROMLIB: Bad PROM version %d\n",
                             romvec->pv_romvers);
@@ -76,11 +67,8 @@ void __init prom_init(struct linux_romvec *rp)
 
         prom_ranges_init();
 
-#ifndef CONFIG_SUN4
-        /* SUN4 prints this in sun4_prom_init */
         printk("PROMLIB: Sun Boot Prom Version %d Revision %d\n",
                romvec->pv_romvers, prom_rev);
-#endif
 
         /* Initialization successful. */
         return;
diff --git a/arch/sparc/prom/memory.c b/arch/sparc/prom/memory.c
index 947f047dc95..fac7899a29c 100644
--- a/arch/sparc/prom/memory.c
+++ b/arch/sparc/prom/memory.c
@@ -10,7 +10,6 @@
 #include <linux/init.h>
 
 #include <asm/openprom.h>
-#include <asm/sun4prom.h>
 #include <asm/oplib.h>
 #include <asm/page.h>
 
@@ -46,15 +45,6 @@ static int __init prom_meminit_v2(void)
         return num_ents;
 }
 
-static int __init prom_meminit_sun4(void)
-{
-#ifdef CONFIG_SUN4
-        sp_banks[0].base_addr = 0;
-        sp_banks[0].num_bytes = *(sun4_romvec->memoryavail);
-#endif
-        return 1;
-}
-
 static int sp_banks_cmp(const void *a, const void *b)
 {
         const struct sparc_phys_banks *x = a, *y = b;
@@ -81,10 +71,6 @@ void __init prom_meminit(void)
                 num_ents = prom_meminit_v2();
                 break;
 
-        case PROM_SUN4:
-                num_ents = prom_meminit_sun4();
-                break;
-
         default:
                 break;
         }
diff --git a/arch/sparc/prom/ranges.c b/arch/sparc/prom/ranges.c
index f9b7def35f6..64579a37641 100644
--- a/arch/sparc/prom/ranges.c
+++ b/arch/sparc/prom/ranges.c
@@ -9,7 +9,6 @@
 #include <asm/openprom.h>
 #include <asm/oplib.h>
 #include <asm/types.h>
-#include <asm/sbus.h>
 #include <asm/system.h>
 
 struct linux_prom_ranges promlib_obio_ranges[PROMREG_MAX];
diff --git a/arch/sparc/prom/sun4prom.c b/arch/sparc/prom/sun4prom.c
deleted file mode 100644
index 00390a2652a..00000000000
--- a/arch/sparc/prom/sun4prom.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * Copyright (C) 1996 The Australian National University.
- * Copyright (C) 1996 Fujitsu Laboratories Limited
- * Copyright (C) 1997 Michael A. Griffith (grif@acm.org)
- * Copyright (C) 1997 Sun Weenie (ko@ko.reno.nv.us)
- * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- * 
- * This software may be distributed under the terms of the Gnu
- * Public License version 2 or later
- *
- * fake a really simple Sun prom for the SUN4
- */
-
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <asm/oplib.h>
-#include <asm/idprom.h> 
-#include <asm/machines.h> 
-#include <asm/sun4prom.h>
-#include <asm/asi.h>
-#include <asm/contregs.h>
-#include <linux/init.h>
-
-static struct linux_romvec sun4romvec;
-static struct idprom sun4_idprom;
-
-struct property {
-        char *name;
-        char *value;
-        int length;
-};
-
-struct node {
-        int level;
-        struct property *properties;
-};
-
-struct property null_properties = { NULL, NULL, -1 };
-
-struct property root_properties[] = {
-        {"device_type", "cpu", 4},
-        {"idprom", (char *)&sun4_idprom, sizeof(struct idprom)},
-        {NULL, NULL, -1}
-};
-
-struct node nodes[] = {
-        { 0, &null_properties }, 
-        { 0, root_properties },
-        { -1,&null_properties }
-};
-
-
-static int no_nextnode(int node)
-{
-        if (nodes[node].level == nodes[node+1].level)
-                return node+1;
-        return -1;
-}
-
-static int no_child(int node)
-{
-        if (nodes[node].level == nodes[node+1].level-1)
-                return node+1;
-        return -1;
-}
-
-static struct property *find_property(int node,char *name)
-{
-        struct property *prop = &nodes[node].properties[0];
-        while (prop && prop->name) {
-                if (strcmp(prop->name,name) == 0) return prop;
-                prop++;
-        }
-        return NULL;
-}
-
-static int no_proplen(int node,char *name)
-{
-        struct property *prop = find_property(node,name);
-        if (prop) return prop->length;
-        return -1;
-}
-
-static int no_getprop(int node,char *name,char *value)
-{
-        struct property *prop = find_property(node,name);
-        if (prop) {
-                memcpy(value,prop->value,prop->length);
-                return 1;
-        }
-        return -1;
-}
-
-static int no_setprop(int node,char *name,char *value,int len)
-{
-        return -1;
-}
-
-static char *no_nextprop(int node,char *name)
-{
-        struct property *prop = find_property(node,name);
-        if (prop) return prop[1].name;
-        return NULL;
-}
-
-static struct linux_nodeops sun4_nodeops = {
-        no_nextnode,
-        no_child,
-        no_proplen,
-        no_getprop,
-        no_setprop,
-        no_nextprop
-};
-        
-static int synch_hook;
-
-struct linux_romvec * __init sun4_prom_init(void)
-{
-        int i;
-        unsigned char x;
-        char *p;
-                                
-        p = (char *)&sun4_idprom;
-        for (i = 0; i < sizeof(sun4_idprom); i++) {
-                __asm__ __volatile__ ("lduba [%1] %2, %0" : "=r" (x) :
-                                      "r" (AC_IDPROM + i), "i" (ASI_CONTROL));
-                *p++ = x;
-        }
-
-        memset(&sun4romvec,0,sizeof(sun4romvec));
-
-        sun4_romvec = (linux_sun4_romvec *) SUN4_PROM_VECTOR;
-
-        sun4romvec.pv_romvers = 40;
-        sun4romvec.pv_nodeops = &sun4_nodeops;
-        sun4romvec.pv_reboot = sun4_romvec->reboot;
-        sun4romvec.pv_abort = sun4_romvec->abortentry;
-        sun4romvec.pv_halt = sun4_romvec->exittomon;
-        sun4romvec.pv_synchook = (void (**)(void))&synch_hook;
-        sun4romvec.pv_setctxt = sun4_romvec->setcxsegmap;
-        sun4romvec.pv_v0bootargs = sun4_romvec->bootParam;
-        sun4romvec.pv_nbgetchar = sun4_romvec->mayget;
-        sun4romvec.pv_nbputchar = sun4_romvec->mayput;
-        sun4romvec.pv_stdin = sun4_romvec->insource;
-        sun4romvec.pv_stdout = sun4_romvec->outsink;
-        
-        /*
-         * We turn on the LEDs to let folks without monitors or
-         * terminals know we booted.   Nothing too fancy now.  They
-         * are all on, except for LED 5, which blinks.   When we
-         * have more time, we can teach the penguin to say "By your
-         * command" or "Activating turbo boost, Michael". :-)
-         */
-        sun4_romvec->setLEDs(NULL);
-        
-        printk("PROMLIB: Old Sun4 boot PROM monitor %s, romvec version %d\n",
-                sun4_romvec->monid,
-                sun4_romvec->romvecversion);
-
-        return &sun4romvec;
-}
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index 36b4b7ab9cf..5446e2a499b 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -18,6 +18,13 @@ config SPARC64
         select HAVE_ARCH_KGDB
         select USE_GENERIC_SMP_HELPERS if SMP
         select HAVE_ARCH_TRACEHOOK
+        select ARCH_WANT_OPTIONAL_GPIOLIB
+        select RTC_CLASS
+        select RTC_DRV_M48T59
+        select RTC_DRV_CMOS
+        select RTC_DRV_BQ4802
+        select RTC_DRV_SUN4V
+        select RTC_DRV_STARFIRE
 
 config GENERIC_TIME
         bool
@@ -31,6 +38,11 @@ config GENERIC_CLOCKEVENTS
         bool
         default y
 
+config GENERIC_GPIO
+        bool
+        help
+          Generic GPIO API support
+
 config 64BIT
         def_bool y
 
@@ -185,6 +197,17 @@ config US2E_FREQ
 
           If in doubt, say N.
 
+config US3_MC
+        tristate "UltraSPARC-III Memory Controller driver"
+        default y
+        help
+          This adds a driver for the UltraSPARC-III memory controller.
+          Loading this driver allows exact mnemonic strings to be
+          printed in the event of a memory error, so that the faulty DIMM
+          on the motherboard can be matched to the error.
+
+          If in doubt, say Y, as this information can be very useful.
+
 # Global things across all Sun machines.
 config GENERIC_LOCKBREAK
         bool
diff --git a/arch/sparc64/Makefile b/arch/sparc64/Makefile
index b785a395b12..c7214abc0d8 100644
--- a/arch/sparc64/Makefile
+++ b/arch/sparc64/Makefile
@@ -7,7 +7,7 @@
 # Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
 #
 
-CHECKFLAGS      += -D__sparc__ -D__sparc_v9__ -m64
+CHECKFLAGS      += -D__sparc__ -D__sparc_v9__ -D__arch64__ -m64
 
 # Undefine sparc when processing vmlinux.lds - it is used
 # And teach CPP we are doing 64 bit builds (for this case)
diff --git a/arch/sparc64/kernel/Makefile b/arch/sparc64/kernel/Makefile
index 418b5782096..c0b8009ab19 100644
--- a/arch/sparc64/kernel/Makefile
+++ b/arch/sparc64/kernel/Makefile
@@ -7,16 +7,16 @@ EXTRA_CFLAGS := -Werror
 
 extra-y         := head.o init_task.o vmlinux.lds
 
-obj-y           := process.o setup.o cpu.o idprom.o \
+obj-y           := process.o setup.o cpu.o idprom.o reboot.o \
                    traps.o auxio.o una_asm.o sysfs.o iommu.o \
                    irq.o ptrace.o time.o sys_sparc.o signal.o \
-                   unaligned.o central.o pci.o starfire.o \
-                   power.o sbus.o sparc64_ksyms.o chmc.o \
+                   unaligned.o central.o starfire.o \
+                   power.o sbus.o sparc64_ksyms.o ebus.o \
                    visemul.o prom.o of_device.o hvapi.o sstate.o mdesc.o
 
 obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
 obj-$(CONFIG_STACKTRACE) += stacktrace.o
-obj-$(CONFIG_PCI)        += ebus.o pci_common.o \
+obj-$(CONFIG_PCI)        += pci.o pci_common.o psycho_common.o \
                             pci_psycho.o pci_sabre.o pci_schizo.o \
                             pci_sun4v.o pci_sun4v_asm.o pci_fire.o
 obj-$(CONFIG_PCI_MSI)   += pci_msi.o
@@ -25,6 +25,7 @@ obj-$(CONFIG_COMPAT) += sys32.o sys_sparc32.o signal32.o
 obj-$(CONFIG_MODULES) += module.o
 obj-$(CONFIG_US3_FREQ) += us3_cpufreq.o
 obj-$(CONFIG_US2E_FREQ) += us2e_cpufreq.o
+obj-$(CONFIG_US3_MC) += chmc.o
 obj-$(CONFIG_KPROBES) += kprobes.o
 obj-$(CONFIG_SUN_LDOMS) += ldc.o vio.o viohs.o ds.o
 obj-$(CONFIG_AUDIT) += audit.o
diff --git a/arch/sparc64/kernel/auxio.c b/arch/sparc64/kernel/auxio.c
index dd5c7bf8761..858beda8652 100644
--- a/arch/sparc64/kernel/auxio.c
+++ b/arch/sparc64/kernel/auxio.c
@@ -109,7 +109,7 @@ void auxio_set_lte(int on)
         }
 }
 
-static struct of_device_id auxio_match[] = {
+static struct of_device_id __initdata auxio_match[] = {
         {
                 .name = "auxio",
         },
diff --git a/arch/sparc64/kernel/central.c b/arch/sparc64/kernel/central.c
index f2e87d0d7e1..05f1c916db0 100644
--- a/arch/sparc64/kernel/central.c
+++ b/arch/sparc64/kernel/central.c
@@ -1,461 +1,268 @@
 /* central.c: Central FHC driver for Sunfire/Starfire/Wildfire.
  *
- * Copyright (C) 1997, 1999 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1997, 1999, 2008 David S. Miller (davem@davemloft.net)
  */
 
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
 
-#include <asm/page.h>
 #include <asm/fhc.h>
-#include <asm/starfire.h>
-
-static struct linux_central *central_bus = NULL;
-static struct linux_fhc *fhc_list = NULL;
+#include <asm/upa.h>
+
+struct clock_board {
+        void __iomem            *clock_freq_regs;
+        void __iomem            *clock_regs;
+        void __iomem            *clock_ver_reg;
+        int                     num_slots;
+        struct resource         leds_resource;
+        struct platform_device  leds_pdev;
+};
+
+struct fhc {
+        void __iomem            *pregs;
+        bool                    central;
+        bool                    jtag_master;
+        int                     board_num;
+        struct resource         leds_resource;
+        struct platform_device  leds_pdev;
+};
+
+static int __devinit clock_board_calc_nslots(struct clock_board *p)
+{
+        u8 reg = upa_readb(p->clock_regs + CLOCK_STAT1) & 0xc0;
 
-#define IS_CENTRAL_FHC(__fhc)   ((__fhc) == central_bus->child)
+        switch (reg) {
+        case 0x40:
+                return 16;
 
-static void central_probe_failure(int line)
-{
-        prom_printf("CENTRAL: Critical device probe failure at central.c:%d\n",
-                    line);
-        prom_halt();
-}
+        case 0xc0:
+                return 8;
 
-static void central_ranges_init(struct linux_central *central)
-{
-        struct device_node *dp = central->prom_node;
-        const void *pval;
-        int len;
-        
-        central->num_central_ranges = 0;
-        pval = of_get_property(dp, "ranges", &len);
-        if (pval) {
-                memcpy(central->central_ranges, pval, len);
-                central->num_central_ranges =
-                        (len / sizeof(struct linux_prom_ranges));
+        case 0x80:
+                reg = 0;
+                if (p->clock_ver_reg)
+                        reg = upa_readb(p->clock_ver_reg);
+                if (reg) {
+                        if (reg & 0x80)
+                                return 4;
+                        else
+                                return 5;
+                }
+                /* Fallthrough */
+        default:
+                return 4;
         }
 }
 
-static void fhc_ranges_init(struct linux_fhc *fhc)
+static int __devinit clock_board_probe(struct of_device *op,
+                                       const struct of_device_id *match)
 {
-        struct device_node *dp = fhc->prom_node;
-        const void *pval;
-        int len;
-        
-        fhc->num_fhc_ranges = 0;
-        pval = of_get_property(dp, "ranges", &len);
-        if (pval) {
-                memcpy(fhc->fhc_ranges, pval, len);
-                fhc->num_fhc_ranges =
-                        (len / sizeof(struct linux_prom_ranges));
-        }
-}
+        struct clock_board *p = kzalloc(sizeof(*p), GFP_KERNEL);
+        int err = -ENOMEM;
 
-/* Range application routines are exported to various drivers,
- * so do not __init this.
- */
-static void adjust_regs(struct linux_prom_registers *regp, int nregs,
-                        struct linux_prom_ranges *rangep, int nranges)
-{
-        int regc, rngc;
-
-        for (regc = 0; regc < nregs; regc++) {
-                for (rngc = 0; rngc < nranges; rngc++)
-                        if (regp[regc].which_io == rangep[rngc].ot_child_space)
-                                break; /* Fount it */
-                if (rngc == nranges) /* oops */
-                        central_probe_failure(__LINE__);
-                regp[regc].which_io = rangep[rngc].ot_parent_space;
-                regp[regc].phys_addr -= rangep[rngc].ot_child_base;
-                regp[regc].phys_addr += rangep[rngc].ot_parent_base;
+        if (!p) {
+                printk(KERN_ERR "clock_board: Cannot allocate struct clock_board\n");
+                goto out;
         }
-}
 
-/* Apply probed fhc ranges to registers passed, if no ranges return. */
-static void apply_fhc_ranges(struct linux_fhc *fhc,
-                             struct linux_prom_registers *regs,
-                             int nregs)
-{
-        if (fhc->num_fhc_ranges)
-                adjust_regs(regs, nregs, fhc->fhc_ranges,
-                            fhc->num_fhc_ranges);
-}
+        p->clock_freq_regs = of_ioremap(&op->resource[0], 0,
+                                        resource_size(&op->resource[0]),
+                                        "clock_board_freq");
+        if (!p->clock_freq_regs) {
+                printk(KERN_ERR "clock_board: Cannot map clock_freq_regs\n");
+                goto out_free;
+        }
 
-/* Apply probed central ranges to registers passed, if no ranges return. */
-static void apply_central_ranges(struct linux_central *central,
-                                 struct linux_prom_registers *regs, int nregs)
-{
-        if (central->num_central_ranges)
-                adjust_regs(regs, nregs, central->central_ranges,
-                            central->num_central_ranges);
-}
+        p->clock_regs = of_ioremap(&op->resource[1], 0,
+                                   resource_size(&op->resource[1]),
+                                   "clock_board_regs");
+        if (!p->clock_regs) {
+                printk(KERN_ERR "clock_board: Cannot map clock_regs\n");
+                goto out_unmap_clock_freq_regs;
+        }
 
-static void * __init central_alloc_bootmem(unsigned long size)
-{
-        void *ret;
+        if (op->resource[2].flags) {
+                p->clock_ver_reg = of_ioremap(&op->resource[2], 0,
+                                              resource_size(&op->resource[2]),
+                                              "clock_ver_reg");
+                if (!p->clock_ver_reg) {
+                        printk(KERN_ERR "clock_board: Cannot map clock_ver_reg\n");
+                        goto out_unmap_clock_regs;
+                }
+        }
 
-        ret = __alloc_bootmem(size, SMP_CACHE_BYTES, 0UL);
-        if (ret != NULL)
-                memset(ret, 0, size);
+        p->num_slots = clock_board_calc_nslots(p);
 
-        return ret;
-}
+        p->leds_resource.start = (unsigned long)
+                (p->clock_regs + CLOCK_CTRL);
+        p->leds_resource.end = p->leds_resource.end;
+        p->leds_resource.name = "leds";
 
-static unsigned long prom_reg_to_paddr(struct linux_prom_registers *r)
-{
-        unsigned long ret = ((unsigned long) r->which_io) << 32;
+        p->leds_pdev.name = "sunfire-clockboard-leds";
+        p->leds_pdev.resource = &p->leds_resource;
+        p->leds_pdev.num_resources = 1;
+        p->leds_pdev.dev.parent = &op->dev;
 
-        return ret | (unsigned long) r->phys_addr;
-}
-
-static void __init probe_other_fhcs(void)
-{
-        struct device_node *dp;
-        const struct linux_prom64_registers *fpregs;
-
-        for_each_node_by_name(dp, "fhc") {
-                struct linux_fhc *fhc;
-                int board;
-                u32 tmp;
-
-                if (dp->parent &&
-                    dp->parent->parent != NULL)
-                        continue;
-
-                fhc = (struct linux_fhc *)
-                        central_alloc_bootmem(sizeof(struct linux_fhc));
-                if (fhc == NULL)
-                        central_probe_failure(__LINE__);
-
-                /* Link it into the FHC chain. */
-                fhc->next = fhc_list;
-                fhc_list = fhc;
-
-                /* Toplevel FHCs have no parent. */
-                fhc->parent = NULL;
-                
-                fhc->prom_node = dp;
-                fhc_ranges_init(fhc);
-
-                /* Non-central FHC's have 64-bit OBP format registers. */
-                fpregs = of_get_property(dp, "reg", NULL);
-                if (!fpregs)
-                        central_probe_failure(__LINE__);
-
-                /* Only central FHC needs special ranges applied. */
-                fhc->fhc_regs.pregs = fpregs[0].phys_addr;
-                fhc->fhc_regs.ireg = fpregs[1].phys_addr;
-                fhc->fhc_regs.ffregs = fpregs[2].phys_addr;
-                fhc->fhc_regs.sregs = fpregs[3].phys_addr;
-                fhc->fhc_regs.uregs = fpregs[4].phys_addr;
-                fhc->fhc_regs.tregs = fpregs[5].phys_addr;
-
-                board = of_getintprop_default(dp, "board#", -1);
-                fhc->board = board;
-
-                tmp = upa_readl(fhc->fhc_regs.pregs + FHC_PREGS_JCTRL);
-                if ((tmp & FHC_JTAG_CTRL_MENAB) != 0)
-                        fhc->jtag_master = 1;
-                else
-                        fhc->jtag_master = 0;
-
-                tmp = upa_readl(fhc->fhc_regs.pregs + FHC_PREGS_ID);
-                printk("FHC(board %d): Version[%x] PartID[%x] Manuf[%x] %s\n",
-                       board,
-                       (tmp & FHC_ID_VERS) >> 28,
-                       (tmp & FHC_ID_PARTID) >> 12,
-                       (tmp & FHC_ID_MANUF) >> 1,
-                       (fhc->jtag_master ? "(JTAG Master)" : ""));
-                
-                /* This bit must be set in all non-central FHC's in
-                 * the system.  When it is clear, this identifies
-                 * the central board.
-                 */
-                tmp = upa_readl(fhc->fhc_regs.pregs + FHC_PREGS_CTRL);
-                tmp |= FHC_CONTROL_IXIST;
-                upa_writel(tmp, fhc->fhc_regs.pregs + FHC_PREGS_CTRL);
+        err = platform_device_register(&p->leds_pdev);
+        if (err) {
+                printk(KERN_ERR "clock_board: Could not register LEDS "
+                       "platform device\n");
+                goto out_unmap_clock_ver_reg;
         }
-}
 
-static void probe_clock_board(struct linux_central *central,
-                              struct linux_fhc *fhc,
-                              struct device_node *fp)
-{
-        struct device_node *dp;
-        struct linux_prom_registers cregs[3];
-        const struct linux_prom_registers *pr;
-        int nslots, tmp, nregs;
-
-        dp = fp->child;
-        while (dp) {
-                if (!strcmp(dp->name, "clock-board"))
-                        break;
-                dp = dp->sibling;
-        }
-        if (!dp)
-                central_probe_failure(__LINE__);
+        printk(KERN_INFO "clock_board: Detected %d slot Enterprise system.\n",
+               p->num_slots);
 
-        pr = of_get_property(dp, "reg", &nregs);
-        if (!pr)
-                central_probe_failure(__LINE__);
+        err = 0;
+out:
+        return err;
 
-        memcpy(cregs, pr, nregs);
-        nregs /= sizeof(struct linux_prom_registers);
+out_unmap_clock_ver_reg:
+        if (p->clock_ver_reg)
+                of_iounmap(&op->resource[2], p->clock_ver_reg,
+                           resource_size(&op->resource[2]));
 
-        apply_fhc_ranges(fhc, &cregs[0], nregs);
-        apply_central_ranges(central, &cregs[0], nregs);
-        central->cfreg = prom_reg_to_paddr(&cregs[0]);
-        central->clkregs = prom_reg_to_paddr(&cregs[1]);
+out_unmap_clock_regs:
+        of_iounmap(&op->resource[1], p->clock_regs,
+                   resource_size(&op->resource[1]));
 
-        if (nregs == 2)
-                central->clkver = 0UL;
-        else
-                central->clkver = prom_reg_to_paddr(&cregs[2]);
+out_unmap_clock_freq_regs:
+        of_iounmap(&op->resource[0], p->clock_freq_regs,
+                   resource_size(&op->resource[0]));
 
-        tmp = upa_readb(central->clkregs + CLOCK_STAT1);
-        tmp &= 0xc0;
-        switch(tmp) {
-        case 0x40:
-                nslots = 16;
-                break;
-        case 0xc0:
-                nslots = 8;
-                break;
-        case 0x80:
-                if (central->clkver != 0UL &&
-                   upa_readb(central->clkver) != 0) {
-                        if ((upa_readb(central->clkver) & 0x80) != 0)
-                                nslots = 4;
-                        else
-                                nslots = 5;
-                        break;
-                }
-        default:
-                nslots = 4;
-                break;
-        };
-        central->slots = nslots;
-        printk("CENTRAL: Detected %d slot Enterprise system. cfreg[%02x] cver[%02x]\n",
-               central->slots, upa_readb(central->cfreg),
-               (central->clkver ? upa_readb(central->clkver) : 0x00));
+out_free:
+        kfree(p);
+        goto out;
 }
 
-static void ZAP(unsigned long iclr, unsigned long imap)
+static struct of_device_id __initdata clock_board_match[] = {
+        {
+                .name = "clock-board",
+        },
+        {},
+};
+
+static struct of_platform_driver clock_board_driver = {
+        .match_table    = clock_board_match,
+        .probe          = clock_board_probe,
+        .driver         = {
+                .name   = "clock_board",
+        },
+};
+
+static int __devinit fhc_probe(struct of_device *op,
+                               const struct of_device_id *match)
 {
-        u32 imap_tmp;
-
-        upa_writel(0, iclr);
-        upa_readl(iclr);
-        imap_tmp = upa_readl(imap);
-        imap_tmp &= ~(0x80000000);
-        upa_writel(imap_tmp, imap);
-        upa_readl(imap);
-}
+        struct fhc *p = kzalloc(sizeof(*p), GFP_KERNEL);
+        int err = -ENOMEM;
+        u32 reg;
 
-static void init_all_fhc_hw(void)
-{
-        struct linux_fhc *fhc;
-
-        for (fhc = fhc_list; fhc != NULL; fhc = fhc->next) {
-                u32 tmp;
-
-                /* Clear all of the interrupt mapping registers
-                 * just in case OBP left them in a foul state.
-                 */
-                ZAP(fhc->fhc_regs.ffregs + FHC_FFREGS_ICLR,
-                    fhc->fhc_regs.ffregs + FHC_FFREGS_IMAP);
-                ZAP(fhc->fhc_regs.sregs + FHC_SREGS_ICLR,
-                    fhc->fhc_regs.sregs + FHC_SREGS_IMAP);
-                ZAP(fhc->fhc_regs.uregs + FHC_UREGS_ICLR,
-                    fhc->fhc_regs.uregs + FHC_UREGS_IMAP);
-                ZAP(fhc->fhc_regs.tregs + FHC_TREGS_ICLR,
-                    fhc->fhc_regs.tregs + FHC_TREGS_IMAP);
-
-                /* Setup FHC control register. */
-                tmp = upa_readl(fhc->fhc_regs.pregs + FHC_PREGS_CTRL);
-
-                /* All non-central boards have this bit set. */
-                if (! IS_CENTRAL_FHC(fhc))
-                        tmp |= FHC_CONTROL_IXIST;
-
-                /* For all FHCs, clear the firmware synchronization
-                 * line and both low power mode enables.
-                 */
-                tmp &= ~(FHC_CONTROL_AOFF | FHC_CONTROL_BOFF |
-                         FHC_CONTROL_SLINE);
-
-                upa_writel(tmp, fhc->fhc_regs.pregs + FHC_PREGS_CTRL);
-                upa_readl(fhc->fhc_regs.pregs + FHC_PREGS_CTRL);
+        if (!p) {
+                printk(KERN_ERR "fhc: Cannot allocate struct fhc\n");
+                goto out;
         }
 
-}
+        if (!strcmp(op->node->parent->name, "central"))
+                p->central = true;
 
-void __init central_probe(void)
-{
-        struct linux_prom_registers fpregs[6];
-        const struct linux_prom_registers *pr;
-        struct linux_fhc *fhc;
-        struct device_node *dp, *fp;
-        int err;
-
-        dp = of_find_node_by_name(NULL, "central");
-        if (!dp) {
-                if (this_is_starfire)
-                        starfire_cpu_setup();
-                return;
+        p->pregs = of_ioremap(&op->resource[0], 0,
+                              resource_size(&op->resource[0]),
+                              "fhc_pregs");
+        if (!p->pregs) {
+                printk(KERN_ERR "fhc: Cannot map pregs\n");
+                goto out_free;
         }
 
-        /* Ok we got one, grab some memory for software state. */
-        central_bus = (struct linux_central *)
-                central_alloc_bootmem(sizeof(struct linux_central));
-        if (central_bus == NULL)
-                central_probe_failure(__LINE__);
-
-        fhc = (struct linux_fhc *)
-                central_alloc_bootmem(sizeof(struct linux_fhc));
-        if (fhc == NULL)
-                central_probe_failure(__LINE__);
-
-        /* First init central. */
-        central_bus->child = fhc;
-        central_bus->prom_node = dp;
-        central_ranges_init(central_bus);
-
-        /* And then central's FHC. */
-        fhc->next = fhc_list;
-        fhc_list = fhc;
-
-        fhc->parent = central_bus;
-        fp = dp->child;
-        while (fp) {
-                if (!strcmp(fp->name, "fhc"))
-                        break;
-                fp = fp->sibling;
+        if (p->central) {
+                reg = upa_readl(p->pregs + FHC_PREGS_BSR);
+                p->board_num = ((reg >> 16) & 1) | ((reg >> 12) & 0x0e);
+        } else {
+                p->board_num = of_getintprop_default(op->node, "board#", -1);
+                if (p->board_num == -1) {
+                        printk(KERN_ERR "fhc: No board# property\n");
+                        goto out_unmap_pregs;
+                }
+                if (upa_readl(p->pregs + FHC_PREGS_JCTRL) & FHC_JTAG_CTRL_MENAB)
+                        p->jtag_master = true;
         }
-        if (!fp)
-                central_probe_failure(__LINE__);
-
-        fhc->prom_node = fp;
-        fhc_ranges_init(fhc);
-
-        /* Now, map in FHC register set. */
-        pr = of_get_property(fp, "reg", NULL);
-        if (!pr)
-                central_probe_failure(__LINE__);
-        memcpy(fpregs, pr, sizeof(fpregs));
-
-        apply_central_ranges(central_bus, &fpregs[0], 6);
-        
-        fhc->fhc_regs.pregs = prom_reg_to_paddr(&fpregs[0]);
-        fhc->fhc_regs.ireg = prom_reg_to_paddr(&fpregs[1]);
-        fhc->fhc_regs.ffregs = prom_reg_to_paddr(&fpregs[2]);
-        fhc->fhc_regs.sregs = prom_reg_to_paddr(&fpregs[3]);
-        fhc->fhc_regs.uregs = prom_reg_to_paddr(&fpregs[4]);
-        fhc->fhc_regs.tregs = prom_reg_to_paddr(&fpregs[5]);
-
-        /* Obtain board number from board status register, Central's
-         * FHC lacks "board#" property.
-         */
-        err = upa_readl(fhc->fhc_regs.pregs + FHC_PREGS_BSR);
-        fhc->board = (((err >> 16) & 0x01) |
-                      ((err >> 12) & 0x0e));
-
-        fhc->jtag_master = 0;
-
-        /* Attach the clock board registers for CENTRAL. */
-        probe_clock_board(central_bus, fhc, fp);
-
-        err = upa_readl(fhc->fhc_regs.pregs + FHC_PREGS_ID);
-        printk("FHC(board %d): Version[%x] PartID[%x] Manuf[%x] (CENTRAL)\n",
-               fhc->board,
-               ((err & FHC_ID_VERS) >> 28),
-               ((err & FHC_ID_PARTID) >> 12),
-               ((err & FHC_ID_MANUF) >> 1));
-
-        probe_other_fhcs();
-
-        init_all_fhc_hw();
-}
 
-static inline void fhc_ledblink(struct linux_fhc *fhc, int on)
-{
-        u32 tmp;
+        if (!p->central) {
+                p->leds_resource.start = (unsigned long)
+                        (p->pregs + FHC_PREGS_CTRL);
+                p->leds_resource.end = p->leds_resource.end;
+                p->leds_resource.name = "leds";
+
+                p->leds_pdev.name = "sunfire-fhc-leds";
+                p->leds_pdev.resource = &p->leds_resource;
+                p->leds_pdev.num_resources = 1;
+                p->leds_pdev.dev.parent = &op->dev;
+
+                err = platform_device_register(&p->leds_pdev);
+                if (err) {
+                        printk(KERN_ERR "fhc: Could not register LEDS "
+                               "platform device\n");
+                        goto out_unmap_pregs;
+                }
+        }
+        reg = upa_readl(p->pregs + FHC_PREGS_CTRL);
 
-        tmp = upa_readl(fhc->fhc_regs.pregs + FHC_PREGS_CTRL);
+        if (!p->central)
+                reg |= FHC_CONTROL_IXIST;
 
-        /* NOTE: reverse logic on this bit */
-        if (on)
-                tmp &= ~(FHC_CONTROL_RLED);
-        else
-                tmp |= FHC_CONTROL_RLED;
-        tmp &= ~(FHC_CONTROL_AOFF | FHC_CONTROL_BOFF | FHC_CONTROL_SLINE);
+        reg &= ~(FHC_CONTROL_AOFF |
+                 FHC_CONTROL_BOFF |
+                 FHC_CONTROL_SLINE);
 
-        upa_writel(tmp, fhc->fhc_regs.pregs + FHC_PREGS_CTRL);
-        upa_readl(fhc->fhc_regs.pregs + FHC_PREGS_CTRL);
-}
+        upa_writel(reg, p->pregs + FHC_PREGS_CTRL);
+        upa_readl(p->pregs + FHC_PREGS_CTRL);
 
-static inline void central_ledblink(struct linux_central *central, int on)
-{
-        u8 tmp;
-
-        tmp = upa_readb(central->clkregs + CLOCK_CTRL);
+        reg = upa_readl(p->pregs + FHC_PREGS_ID);
+        printk(KERN_INFO "fhc: Board #%d, Version[%x] PartID[%x] Manuf[%x] %s\n",
+               p->board_num,
+               (reg & FHC_ID_VERS) >> 28,
+               (reg & FHC_ID_PARTID) >> 12,
+               (reg & FHC_ID_MANUF) >> 1,
+               (p->jtag_master ?
+                "(JTAG Master)" :
+                (p->central ? "(Central)" : "")));
 
-        /* NOTE: reverse logic on this bit */
-        if (on)
-                tmp &= ~(CLOCK_CTRL_RLED);
-        else
-                tmp |= CLOCK_CTRL_RLED;
+        err = 0;
 
-        upa_writeb(tmp, central->clkregs + CLOCK_CTRL);
-        upa_readb(central->clkregs + CLOCK_CTRL);
-}
+out:
+        return err;
 
-static struct timer_list sftimer;
-static int led_state;
+out_unmap_pregs:
+        of_iounmap(&op->resource[0], p->pregs, resource_size(&op->resource[0]));
 
-static void sunfire_timer(unsigned long __ignored)
-{
-        struct linux_fhc *fhc;
-
-        central_ledblink(central_bus, led_state);
-        for (fhc = fhc_list; fhc != NULL; fhc = fhc->next)
-                if (! IS_CENTRAL_FHC(fhc))
-                        fhc_ledblink(fhc, led_state);
-        led_state = ! led_state;
-        sftimer.expires = jiffies + (HZ >> 1);
-        add_timer(&sftimer);
+out_free:
+        kfree(p);
+        goto out;
 }
 
-/* After PCI/SBUS busses have been probed, this is called to perform
- * final initialization of all FireHose Controllers in the system.
- */
-void firetruck_init(void)
+static struct of_device_id __initdata fhc_match[] = {
+        {
+                .name = "fhc",
+        },
+        {},
+};
+
+static struct of_platform_driver fhc_driver = {
+        .match_table    = fhc_match,
+        .probe          = fhc_probe,
+        .driver         = {
+                .name   = "fhc",
+        },
+};
+
+static int __init sunfire_init(void)
 {
-        struct linux_central *central = central_bus;
-        u8 ctrl;
-
-        /* No central bus, nothing to do. */
-        if (central == NULL)
-                return;
-
-        /* OBP leaves it on, turn it off so clock board timer LED
-         * is in sync with FHC ones.
-         */
-        ctrl = upa_readb(central->clkregs + CLOCK_CTRL);
-        ctrl &= ~(CLOCK_CTRL_RLED);
-        upa_writeb(ctrl, central->clkregs + CLOCK_CTRL);
-
-        led_state = 0;
-        init_timer(&sftimer);
-        sftimer.data = 0;
-        sftimer.function = &sunfire_timer;
-        sftimer.expires = jiffies + (HZ >> 1);
-        add_timer(&sftimer);
+        (void) of_register_driver(&fhc_driver, &of_platform_bus_type);
+        (void) of_register_driver(&clock_board_driver, &of_platform_bus_type);
+        return 0;
 }
+
+subsys_initcall(sunfire_init);
diff --git a/arch/sparc64/kernel/chmc.c b/arch/sparc64/kernel/chmc.c
index 6d4f02e8a4c..967b0488682 100644
--- a/arch/sparc64/kernel/chmc.c
+++ b/arch/sparc64/kernel/chmc.c
@@ -1,6 +1,6 @@
-/* memctrlr.c: Driver for UltraSPARC-III memory controller.
+/* chmc.c: Driver for UltraSPARC-III memory controller.
  *
- * Copyright (C) 2001, 2007 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 2001, 2007, 2008 David S. Miller (davem@davemloft.net)
  */
 
 #include <linux/module.h>
@@ -13,45 +13,64 @@
 #include <linux/smp.h>
 #include <linux/errno.h>
 #include <linux/init.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 #include <asm/spitfire.h>
 #include <asm/chmctrl.h>
 #include <asm/cpudata.h>
 #include <asm/oplib.h>
 #include <asm/prom.h>
+#include <asm/head.h>
 #include <asm/io.h>
+#include <asm/memctrl.h>
+
+#define DRV_MODULE_NAME         "chmc"
+#define PFX DRV_MODULE_NAME     ": "
+#define DRV_MODULE_VERSION      "0.2"
+
+MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
+MODULE_DESCRIPTION("UltraSPARC-III memory controller driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_MODULE_VERSION);
+
+static int mc_type;
+#define MC_TYPE_SAFARI          1
+#define MC_TYPE_JBUS            2
+
+static dimm_printer_t us3mc_dimm_printer;
 
 #define CHMCTRL_NDGRPS  2
 #define CHMCTRL_NDIMMS  4
 
-#define DIMMS_PER_MC    (CHMCTRL_NDGRPS * CHMCTRL_NDIMMS)
+#define CHMC_DIMMS_PER_MC       (CHMCTRL_NDGRPS * CHMCTRL_NDIMMS)
 
 /* OBP memory-layout property format. */
-struct obp_map {
+struct chmc_obp_map {
         unsigned char   dimm_map[144];
         unsigned char   pin_map[576];
 };
 
 #define DIMM_LABEL_SZ   8
 
-struct obp_mem_layout {
+struct chmc_obp_mem_layout {
         /* One max 8-byte string label per DIMM.  Usually
          * this matches the label on the motherboard where
          * that DIMM resides.
          */
-        char            dimm_labels[DIMMS_PER_MC][DIMM_LABEL_SZ];
+        char                    dimm_labels[CHMC_DIMMS_PER_MC][DIMM_LABEL_SZ];
 
         /* If symmetric use map[0], else it is
          * asymmetric and map[1] should be used.
          */
-        char            symmetric;
+        char                    symmetric;
 
-        struct obp_map  map[2];
+        struct chmc_obp_map     map[2];
 };
 
 #define CHMCTRL_NBANKS  4
 
-struct bank_info {
-        struct mctrl_info       *mp;
+struct chmc_bank_info {
+        struct chmc             *p;
         int                     bank_id;
 
         u64                     raw_reg;
@@ -65,28 +84,406 @@ struct bank_info {
         unsigned long           size;
 };
 
-struct mctrl_info {
-        struct list_head        list;
-        int                     portid;
+struct chmc {
+        struct list_head                list;
+        int                             portid;
+
+        struct chmc_obp_mem_layout      layout_prop;
+        int                             layout_size;
+
+        void __iomem                    *regs;
 
-        struct obp_mem_layout   layout_prop;
-        int                     layout_size;
+        u64                             timing_control1;
+        u64                             timing_control2;
+        u64                             timing_control3;
+        u64                             timing_control4;
+        u64                             memaddr_control;
 
-        void __iomem            *regs;
+        struct chmc_bank_info           logical_banks[CHMCTRL_NBANKS];
+};
+
+#define JBUSMC_REGS_SIZE                8
+
+#define JB_MC_REG1_DIMM2_BANK3          0x8000000000000000UL
+#define JB_MC_REG1_DIMM1_BANK1          0x4000000000000000UL
+#define JB_MC_REG1_DIMM2_BANK2          0x2000000000000000UL
+#define JB_MC_REG1_DIMM1_BANK0          0x1000000000000000UL
+#define JB_MC_REG1_XOR                  0x0000010000000000UL
+#define JB_MC_REG1_ADDR_GEN_2           0x000000e000000000UL
+#define JB_MC_REG1_ADDR_GEN_2_SHIFT     37
+#define JB_MC_REG1_ADDR_GEN_1           0x0000001c00000000UL
+#define JB_MC_REG1_ADDR_GEN_1_SHIFT     34
+#define JB_MC_REG1_INTERLEAVE           0x0000000001800000UL
+#define JB_MC_REG1_INTERLEAVE_SHIFT     23
+#define JB_MC_REG1_DIMM2_PTYPE          0x0000000000200000UL
+#define JB_MC_REG1_DIMM2_PTYPE_SHIFT    21
+#define JB_MC_REG1_DIMM1_PTYPE          0x0000000000100000UL
+#define JB_MC_REG1_DIMM1_PTYPE_SHIFT    20
+
+#define PART_TYPE_X8            0
+#define PART_TYPE_X4            1
+
+#define INTERLEAVE_NONE         0
+#define INTERLEAVE_SAME         1
+#define INTERLEAVE_INTERNAL     2
+#define INTERLEAVE_BOTH         3
+
+#define ADDR_GEN_128MB          0
+#define ADDR_GEN_256MB          1
+#define ADDR_GEN_512MB          2
+#define ADDR_GEN_1GB            3
+
+#define JB_NUM_DIMM_GROUPS      2
+#define JB_NUM_DIMMS_PER_GROUP  2
+#define JB_NUM_DIMMS            (JB_NUM_DIMM_GROUPS * JB_NUM_DIMMS_PER_GROUP)
+
+struct jbusmc_obp_map {
+        unsigned char   dimm_map[18];
+        unsigned char   pin_map[144];
+};
+
+struct jbusmc_obp_mem_layout {
+        /* One max 8-byte string label per DIMM.  Usually
+         * this matches the label on the motherboard where
+         * that DIMM resides.
+         */
+        char            dimm_labels[JB_NUM_DIMMS][DIMM_LABEL_SZ];
+
+        /* If symmetric use map[0], else it is
+         * asymmetric and map[1] should be used.
+         */
+        char                    symmetric;
+
+        struct jbusmc_obp_map   map;
+
+        char                    _pad;
+};
 
-        u64                     timing_control1;
-        u64                     timing_control2;
-        u64                     timing_control3;
-        u64                     timing_control4;
-        u64                     memaddr_control;
+struct jbusmc_dimm_group {
+        struct jbusmc                   *controller;
+        int                             index;
+        u64                             base_addr;
+        u64                             size;
+};
 
-        struct bank_info        logical_banks[CHMCTRL_NBANKS];
+struct jbusmc {
+        void __iomem                    *regs;
+        u64                             mc_reg_1;
+        u32                             portid;
+        struct jbusmc_obp_mem_layout    layout;
+        int                             layout_len;
+        int                             num_dimm_groups;
+        struct jbusmc_dimm_group        dimm_groups[JB_NUM_DIMM_GROUPS];
+        struct list_head                list;
 };
 
+static DEFINE_SPINLOCK(mctrl_list_lock);
 static LIST_HEAD(mctrl_list);
 
+static void mc_list_add(struct list_head *list)
+{
+        spin_lock(&mctrl_list_lock);
+        list_add(list, &mctrl_list);
+        spin_unlock(&mctrl_list_lock);
+}
+
+static void mc_list_del(struct list_head *list)
+{
+        spin_lock(&mctrl_list_lock);
+        list_del_init(list);
+        spin_unlock(&mctrl_list_lock);
+}
+
+#define SYNDROME_MIN    -1
+#define SYNDROME_MAX    144
+
+/* Covert syndrome code into the way the bits are positioned
+ * on the bus.
+ */
+static int syndrome_to_qword_code(int syndrome_code)
+{
+        if (syndrome_code < 128)
+                syndrome_code += 16;
+        else if (syndrome_code < 128 + 9)
+                syndrome_code -= (128 - 7);
+        else if (syndrome_code < (128 + 9 + 3))
+                syndrome_code -= (128 + 9 - 4);
+        else
+                syndrome_code -= (128 + 9 + 3);
+        return syndrome_code;
+}
+
+/* All this magic has to do with how a cache line comes over the wire
+ * on Safari and JBUS.  A 64-bit line comes over in 1 or more quadword
+ * cycles, each of which transmit ECC/MTAG info as well as the actual
+ * data.
+ */
+#define L2_LINE_SIZE            64
+#define L2_LINE_ADDR_MSK        (L2_LINE_SIZE - 1)
+#define QW_PER_LINE             4
+#define QW_BYTES                (L2_LINE_SIZE / QW_PER_LINE)
+#define QW_BITS                 144
+#define SAFARI_LAST_BIT         (576 - 1)
+#define JBUS_LAST_BIT           (144 - 1)
+
+static void get_pin_and_dimm_str(int syndrome_code, unsigned long paddr,
+                                 int *pin_p, char **dimm_str_p, void *_prop,
+                                 int base_dimm_offset)
+{
+        int qword_code = syndrome_to_qword_code(syndrome_code);
+        int cache_line_offset;
+        int offset_inverse;
+        int dimm_map_index;
+        int map_val;
+
+        if (mc_type == MC_TYPE_JBUS) {
+                struct jbusmc_obp_mem_layout *p = _prop;
+
+                /* JBUS */
+                cache_line_offset = qword_code;
+                offset_inverse = (JBUS_LAST_BIT - cache_line_offset);
+                dimm_map_index = offset_inverse / 8;
+                map_val = p->map.dimm_map[dimm_map_index];
+                map_val = ((map_val >> ((7 - (offset_inverse & 7)))) & 1);
+                *dimm_str_p = p->dimm_labels[base_dimm_offset + map_val];
+                *pin_p = p->map.pin_map[cache_line_offset];
+        } else {
+                struct chmc_obp_mem_layout *p = _prop;
+                struct chmc_obp_map *mp;
+                int qword;
+
+                /* Safari */
+                if (p->symmetric)
+                        mp = &p->map[0];
+                else
+                        mp = &p->map[1];
+
+                qword = (paddr & L2_LINE_ADDR_MSK) / QW_BYTES;
+                cache_line_offset = ((3 - qword) * QW_BITS) + qword_code;
+                offset_inverse = (SAFARI_LAST_BIT - cache_line_offset);
+                dimm_map_index = offset_inverse >> 2;
+                map_val = mp->dimm_map[dimm_map_index];
+                map_val = ((map_val >> ((3 - (offset_inverse & 3)) << 1)) & 0x3);
+                *dimm_str_p = p->dimm_labels[base_dimm_offset + map_val];
+                *pin_p = mp->pin_map[cache_line_offset];
+        }
+}
+
+static struct jbusmc_dimm_group *jbusmc_find_dimm_group(unsigned long phys_addr)
+{
+        struct jbusmc *p;
+
+        list_for_each_entry(p, &mctrl_list, list) {
+                int i;
+
+                for (i = 0; i < p->num_dimm_groups; i++) {
+                        struct jbusmc_dimm_group *dp = &p->dimm_groups[i];
+
+                        if (phys_addr < dp->base_addr ||
+                            (dp->base_addr + dp->size) <= phys_addr)
+                                continue;
+
+                        return dp;
+                }
+        }
+        return NULL;
+}
+
+static int jbusmc_print_dimm(int syndrome_code,
+                             unsigned long phys_addr,
+                             char *buf, int buflen)
+{
+        struct jbusmc_obp_mem_layout *prop;
+        struct jbusmc_dimm_group *dp;
+        struct jbusmc *p;
+        int first_dimm;
+
+        dp = jbusmc_find_dimm_group(phys_addr);
+        if (dp == NULL ||
+            syndrome_code < SYNDROME_MIN ||
+            syndrome_code > SYNDROME_MAX) {
+                buf[0] = '?';
+                buf[1] = '?';
+                buf[2] = '?';
+                buf[3] = '\0';
+        }
+        p = dp->controller;
+        prop = &p->layout;
+
+        first_dimm = dp->index * JB_NUM_DIMMS_PER_GROUP;
+
+        if (syndrome_code != SYNDROME_MIN) {
+                char *dimm_str;
+                int pin;
+
+                get_pin_and_dimm_str(syndrome_code, phys_addr, &pin,
+                                     &dimm_str, prop, first_dimm);
+                sprintf(buf, "%s, pin %3d", dimm_str, pin);
+        } else {
+                int dimm;
+
+                /* Multi-bit error, we just dump out all the
+                 * dimm labels associated with this dimm group.
+                 */
+                for (dimm = 0; dimm < JB_NUM_DIMMS_PER_GROUP; dimm++) {
+                        sprintf(buf, "%s ",
+                                prop->dimm_labels[first_dimm + dimm]);
+                        buf += strlen(buf);
+                }
+        }
+
+        return 0;
+}
+
+static u64 __devinit jbusmc_dimm_group_size(u64 base,
+                                            const struct linux_prom64_registers *mem_regs,
+                                            int num_mem_regs)
+{
+        u64 max = base + (8UL * 1024 * 1024 * 1024);
+        u64 max_seen = base;
+        int i;
+
+        for (i = 0; i < num_mem_regs; i++) {
+                const struct linux_prom64_registers *ent;
+                u64 this_base;
+                u64 this_end;
+
+                ent = &mem_regs[i];
+                this_base = ent->phys_addr;
+                this_end = this_base + ent->reg_size;
+                if (base < this_base || base >= this_end)
+                        continue;
+                if (this_end > max)
+                        this_end = max;
+                if (this_end > max_seen)
+                        max_seen = this_end;
+        }
+
+        return max_seen - base;
+}
+
+static void __devinit jbusmc_construct_one_dimm_group(struct jbusmc *p,
+                                                      unsigned long index,
+                                                      const struct linux_prom64_registers *mem_regs,
+                                                      int num_mem_regs)
+{
+        struct jbusmc_dimm_group *dp = &p->dimm_groups[index];
+
+        dp->controller = p;
+        dp->index = index;
+
+        dp->base_addr  = (p->portid * (64UL * 1024 * 1024 * 1024));
+        dp->base_addr += (index * (8UL * 1024 * 1024 * 1024));
+        dp->size = jbusmc_dimm_group_size(dp->base_addr, mem_regs, num_mem_regs);
+}
+
+static void __devinit jbusmc_construct_dimm_groups(struct jbusmc *p,
+                                                   const struct linux_prom64_registers *mem_regs,
+                                                   int num_mem_regs)
+{
+        if (p->mc_reg_1 & JB_MC_REG1_DIMM1_BANK0) {
+                jbusmc_construct_one_dimm_group(p, 0, mem_regs, num_mem_regs);
+                p->num_dimm_groups++;
+        }
+        if (p->mc_reg_1 & JB_MC_REG1_DIMM2_BANK2) {
+                jbusmc_construct_one_dimm_group(p, 1, mem_regs, num_mem_regs);
+                p->num_dimm_groups++;
+        }
+}
+
+static int __devinit jbusmc_probe(struct of_device *op,
+                                  const struct of_device_id *match)
+{
+        const struct linux_prom64_registers *mem_regs;
+        struct device_node *mem_node;
+        int err, len, num_mem_regs;
+        struct jbusmc *p;
+        const u32 *prop;
+        const void *ml;
+
+        err = -ENODEV;
+        mem_node = of_find_node_by_path("/memory");
+        if (!mem_node) {
+                printk(KERN_ERR PFX "Cannot find /memory node.\n");
+                goto out;
+        }
+        mem_regs = of_get_property(mem_node, "reg", &len);
+        if (!mem_regs) {
+                printk(KERN_ERR PFX "Cannot get reg property of /memory node.\n");
+                goto out;
+        }
+        num_mem_regs = len / sizeof(*mem_regs);
+
+        err = -ENOMEM;
+        p = kzalloc(sizeof(*p), GFP_KERNEL);
+        if (!p) {
+                printk(KERN_ERR PFX "Cannot allocate struct jbusmc.\n");
+                goto out;
+        }
+
+        INIT_LIST_HEAD(&p->list);
+
+        err = -ENODEV;
+        prop = of_get_property(op->node, "portid", &len);
+        if (!prop || len != 4) {
+                printk(KERN_ERR PFX "Cannot find portid.\n");
+                goto out_free;
+        }
+
+        p->portid = *prop;
+
+        prop = of_get_property(op->node, "memory-control-register-1", &len);
+        if (!prop || len != 8) {
+                printk(KERN_ERR PFX "Cannot get memory control register 1.\n");
+                goto out_free;
+        }
+
+        p->mc_reg_1 = ((u64)prop[0] << 32) | (u64) prop[1];
+
+        err = -ENOMEM;
+        p->regs = of_ioremap(&op->resource[0], 0, JBUSMC_REGS_SIZE, "jbusmc");
+        if (!p->regs) {
+                printk(KERN_ERR PFX "Cannot map jbusmc regs.\n");
+                goto out_free;
+        }
+
+        err = -ENODEV;
+        ml = of_get_property(op->node, "memory-layout", &p->layout_len);
+        if (!ml) {
+                printk(KERN_ERR PFX "Cannot get memory layout property.\n");
+                goto out_iounmap;
+        }
+        if (p->layout_len > sizeof(p->layout)) {
+                printk(KERN_ERR PFX "Unexpected memory-layout size %d\n",
+                       p->layout_len);
+                goto out_iounmap;
+        }
+        memcpy(&p->layout, ml, p->layout_len);
+
+        jbusmc_construct_dimm_groups(p, mem_regs, num_mem_regs);
+
+        mc_list_add(&p->list);
+
+        printk(KERN_INFO PFX "UltraSPARC-IIIi memory controller at %s\n",
+               op->node->full_name);
+
+        dev_set_drvdata(&op->dev, p);
+
+        err = 0;
+
+out:
+        return err;
+
+out_iounmap:
+        of_iounmap(&op->resource[0], p->regs, JBUSMC_REGS_SIZE);
+
+out_free:
+        kfree(p);
+        goto out;
+}
+
 /* Does BANK decode PHYS_ADDR? */
-static int bank_match(struct bank_info *bp, unsigned long phys_addr)
+static int chmc_bank_match(struct chmc_bank_info *bp, unsigned long phys_addr)
 {
         unsigned long upper_bits = (phys_addr & PA_UPPER_BITS) >> PA_UPPER_BITS_SHIFT;
         unsigned long lower_bits = (phys_addr & PA_LOWER_BITS) >> PA_LOWER_BITS_SHIFT;
@@ -118,25 +515,18 @@ static int bank_match(struct bank_info *bp, unsigned long phys_addr)
 }
 
 /* Given PHYS_ADDR, search memory controller banks for a match. */
-static struct bank_info *find_bank(unsigned long phys_addr)
+static struct chmc_bank_info *chmc_find_bank(unsigned long phys_addr)
 {
-        struct list_head *mctrl_head = &mctrl_list;
-        struct list_head *mctrl_entry = mctrl_head->next;
+        struct chmc *p;
 
-        for (;;) {
-                struct mctrl_info *mp =
-                        list_entry(mctrl_entry, struct mctrl_info, list);
+        list_for_each_entry(p, &mctrl_list, list) {
                 int bank_no;
 
-                if (mctrl_entry == mctrl_head)
-                        break;
-                mctrl_entry = mctrl_entry->next;
-
                 for (bank_no = 0; bank_no < CHMCTRL_NBANKS; bank_no++) {
-                        struct bank_info *bp;
+                        struct chmc_bank_info *bp;
 
-                        bp = &mp->logical_banks[bank_no];
-                        if (bank_match(bp, phys_addr))
+                        bp = &p->logical_banks[bank_no];
+                        if (chmc_bank_match(bp, phys_addr))
                                 return bp;
                 }
         }
@@ -145,17 +535,15 @@ static struct bank_info *find_bank(unsigned long phys_addr)
 }
 
 /* This is the main purpose of this driver. */
-#define SYNDROME_MIN    -1
-#define SYNDROME_MAX    144
-int chmc_getunumber(int syndrome_code,
-                    unsigned long phys_addr,
-                    char *buf, int buflen)
+static int chmc_print_dimm(int syndrome_code,
+                           unsigned long phys_addr,
+                           char *buf, int buflen)
 {
-        struct bank_info *bp;
-        struct obp_mem_layout *prop;
+        struct chmc_bank_info *bp;
+        struct chmc_obp_mem_layout *prop;
         int bank_in_controller, first_dimm;
 
-        bp = find_bank(phys_addr);
+        bp = chmc_find_bank(phys_addr);
         if (bp == NULL ||
             syndrome_code < SYNDROME_MIN ||
             syndrome_code > SYNDROME_MAX) {
@@ -166,60 +554,18 @@ int chmc_getunumber(int syndrome_code,
                 return 0;
         }
 
-        prop = &bp->mp->layout_prop;
+        prop = &bp->p->layout_prop;
         bank_in_controller = bp->bank_id & (CHMCTRL_NBANKS - 1);
         first_dimm  = (bank_in_controller & (CHMCTRL_NDGRPS - 1));
         first_dimm *= CHMCTRL_NDIMMS;
 
         if (syndrome_code != SYNDROME_MIN) {
-                struct obp_map *map;
-                int qword, where_in_line, where, map_index, map_offset;
-                unsigned int map_val;
+                char *dimm_str;
+                int pin;
 
-                /* Yaay, single bit error so we can figure out
-                 * the exact dimm.
-                 */
-                if (prop->symmetric)
-                        map = &prop->map[0];
-                else
-                        map = &prop->map[1];
-
-                /* Covert syndrome code into the way the bits are
-                 * positioned on the bus.
-                 */
-                if (syndrome_code < 144 - 16)
-                        syndrome_code += 16;
-                else if (syndrome_code < 144)
-                        syndrome_code -= (144 - 7);
-                else if (syndrome_code < (144 + 3))
-                        syndrome_code -= (144 + 3 - 4);
-                else
-                        syndrome_code -= 144 + 3;
-
-                /* All this magic has to do with how a cache line
-                 * comes over the wire on Safari.  A 64-bit line
-                 * comes over in 4 quadword cycles, each of which
-                 * transmit ECC/MTAG info as well as the actual
-                 * data.  144 bits per quadword, 576 total.
-                 */
-#define LINE_SIZE       64
-#define LINE_ADDR_MSK   (LINE_SIZE - 1)
-#define QW_PER_LINE     4
-#define QW_BYTES        (LINE_SIZE / QW_PER_LINE)
-#define QW_BITS         144
-#define LAST_BIT        (576 - 1)
-
-                qword = (phys_addr & LINE_ADDR_MSK) / QW_BYTES;
-                where_in_line = ((3 - qword) * QW_BITS) + syndrome_code;
-                where = (LAST_BIT - where_in_line);
-                map_index = where >> 2;
-                map_offset = where & 0x3;
-                map_val = map->dimm_map[map_index];
-                map_val = ((map_val >> ((3 - map_offset) << 1)) & (2 - 1));
-
-                sprintf(buf, "%s, pin %3d",
-                        prop->dimm_labels[first_dimm + map_val],
-                        map->pin_map[where_in_line]);
+                get_pin_and_dimm_str(syndrome_code, phys_addr, &pin,
+                                     &dimm_str, prop, first_dimm);
+                sprintf(buf, "%s, pin %3d", dimm_str, pin);
         } else {
                 int dimm;
 
@@ -240,7 +586,7 @@ int chmc_getunumber(int syndrome_code,
  * the code is executing, you must use special ASI load/store else
  * you go through the global mapping.
  */
-static u64 read_mcreg(struct mctrl_info *mp, unsigned long offset)
+static u64 chmc_read_mcreg(struct chmc *p, unsigned long offset)
 {
         unsigned long ret, this_cpu;
 
@@ -248,14 +594,14 @@ static u64 read_mcreg(struct mctrl_info *mp, unsigned long offset)
 
         this_cpu = real_hard_smp_processor_id();
 
-        if (mp->portid == this_cpu) {
+        if (p->portid == this_cpu) {
                 __asm__ __volatile__("ldxa      [%1] %2, %0"
                                      : "=r" (ret)
                                      : "r" (offset), "i" (ASI_MCU_CTRL_REG));
         } else {
                 __asm__ __volatile__("ldxa      [%1] %2, %0"
                                      : "=r" (ret)
-                                     : "r" (mp->regs + offset),
+                                     : "r" (p->regs + offset),
                                        "i" (ASI_PHYS_BYPASS_EC_E));
         }
 
@@ -265,178 +611,253 @@ static u64 read_mcreg(struct mctrl_info *mp, unsigned long offset)
 }
 
 #if 0 /* currently unused */
-static void write_mcreg(struct mctrl_info *mp, unsigned long offset, u64 val)
+static void chmc_write_mcreg(struct chmc *p, unsigned long offset, u64 val)
 {
-        if (mp->portid == smp_processor_id()) {
+        if (p->portid == smp_processor_id()) {
                 __asm__ __volatile__("stxa      %0, [%1] %2"
                                      : : "r" (val),
                                          "r" (offset), "i" (ASI_MCU_CTRL_REG));
         } else {
                 __asm__ __volatile__("ldxa      %0, [%1] %2"
                                      : : "r" (val),
-                                         "r" (mp->regs + offset),
+                                         "r" (p->regs + offset),
                                          "i" (ASI_PHYS_BYPASS_EC_E));
         }
 }
 #endif
 
-static void interpret_one_decode_reg(struct mctrl_info *mp, int which_bank, u64 val)
+static void chmc_interpret_one_decode_reg(struct chmc *p, int which_bank, u64 val)
 {
-        struct bank_info *p = &mp->logical_banks[which_bank];
-
-        p->mp = mp;
-        p->bank_id = (CHMCTRL_NBANKS * mp->portid) + which_bank;
-        p->raw_reg = val;
-        p->valid = (val & MEM_DECODE_VALID) >> MEM_DECODE_VALID_SHIFT;
-        p->uk = (val & MEM_DECODE_UK) >> MEM_DECODE_UK_SHIFT;
-        p->um = (val & MEM_DECODE_UM) >> MEM_DECODE_UM_SHIFT;
-        p->lk = (val & MEM_DECODE_LK) >> MEM_DECODE_LK_SHIFT;
-        p->lm = (val & MEM_DECODE_LM) >> MEM_DECODE_LM_SHIFT;
-
-        p->base  =  (p->um);
-        p->base &= ~(p->uk);
-        p->base <<= PA_UPPER_BITS_SHIFT;
-
-        switch(p->lk) {
+        struct chmc_bank_info *bp = &p->logical_banks[which_bank];
+
+        bp->p = p;
+        bp->bank_id = (CHMCTRL_NBANKS * p->portid) + which_bank;
+        bp->raw_reg = val;
+        bp->valid = (val & MEM_DECODE_VALID) >> MEM_DECODE_VALID_SHIFT;
+        bp->uk = (val & MEM_DECODE_UK) >> MEM_DECODE_UK_SHIFT;
+        bp->um = (val & MEM_DECODE_UM) >> MEM_DECODE_UM_SHIFT;
+        bp->lk = (val & MEM_DECODE_LK) >> MEM_DECODE_LK_SHIFT;
+        bp->lm = (val & MEM_DECODE_LM) >> MEM_DECODE_LM_SHIFT;
+
+        bp->base  =  (bp->um);
+        bp->base &= ~(bp->uk);
+        bp->base <<= PA_UPPER_BITS_SHIFT;
+
+        switch(bp->lk) {
         case 0xf:
         default:
-                p->interleave = 1;
+                bp->interleave = 1;
                 break;
 
         case 0xe:
-                p->interleave = 2;
+                bp->interleave = 2;
                 break;
 
         case 0xc:
-                p->interleave = 4;
+                bp->interleave = 4;
                 break;
 
         case 0x8:
-                p->interleave = 8;
+                bp->interleave = 8;
                 break;
 
         case 0x0:
-                p->interleave = 16;
+                bp->interleave = 16;
                 break;
         };
 
         /* UK[10] is reserved, and UK[11] is not set for the SDRAM
          * bank size definition.
          */
-        p->size = (((unsigned long)p->uk &
-                    ((1UL << 10UL) - 1UL)) + 1UL) << PA_UPPER_BITS_SHIFT;
-        p->size /= p->interleave;
+        bp->size = (((unsigned long)bp->uk &
+                     ((1UL << 10UL) - 1UL)) + 1UL) << PA_UPPER_BITS_SHIFT;
+        bp->size /= bp->interleave;
 }
 
-static void fetch_decode_regs(struct mctrl_info *mp)
+static void chmc_fetch_decode_regs(struct chmc *p)
 {
-        if (mp->layout_size == 0)
+        if (p->layout_size == 0)
                 return;
 
-        interpret_one_decode_reg(mp, 0,
-                                 read_mcreg(mp, CHMCTRL_DECODE1));
-        interpret_one_decode_reg(mp, 1,
-                                 read_mcreg(mp, CHMCTRL_DECODE2));
-        interpret_one_decode_reg(mp, 2,
-                                 read_mcreg(mp, CHMCTRL_DECODE3));
-        interpret_one_decode_reg(mp, 3,
-                                 read_mcreg(mp, CHMCTRL_DECODE4));
+        chmc_interpret_one_decode_reg(p, 0,
+                                      chmc_read_mcreg(p, CHMCTRL_DECODE1));
+        chmc_interpret_one_decode_reg(p, 1,
+                                      chmc_read_mcreg(p, CHMCTRL_DECODE2));
+        chmc_interpret_one_decode_reg(p, 2,
+                                      chmc_read_mcreg(p, CHMCTRL_DECODE3));
+        chmc_interpret_one_decode_reg(p, 3,
+                                      chmc_read_mcreg(p, CHMCTRL_DECODE4));
 }
 
-static int init_one_mctrl(struct device_node *dp)
+static int __devinit chmc_probe(struct of_device *op,
+                                const struct of_device_id *match)
 {
-        struct mctrl_info *mp = kzalloc(sizeof(*mp), GFP_KERNEL);
-        int portid = of_getintprop_default(dp, "portid", -1);
-        const struct linux_prom64_registers *regs;
+        struct device_node *dp = op->node;
+        unsigned long ver;
         const void *pval;
-        int len;
+        int len, portid;
+        struct chmc *p;
+        int err;
+
+        err = -ENODEV;
+        __asm__ ("rdpr %%ver, %0" : "=r" (ver));
+        if ((ver >> 32UL) == __JALAPENO_ID ||
+            (ver >> 32UL) == __SERRANO_ID)
+                goto out;
 
-        if (!mp)
-                return -1;
+        portid = of_getintprop_default(dp, "portid", -1);
         if (portid == -1)
-                goto fail;
+                goto out;
 
-        mp->portid = portid;
         pval = of_get_property(dp, "memory-layout", &len);
-        mp->layout_size = len;
-        if (!pval)
-                mp->layout_size = 0;
-        else {
-                if (mp->layout_size > sizeof(mp->layout_prop))
-                        goto fail;
-                memcpy(&mp->layout_prop, pval, len);
+        if (pval && len > sizeof(p->layout_prop)) {
+                printk(KERN_ERR PFX "Unexpected memory-layout property "
+                       "size %d.\n", len);
+                goto out;
         }
 
-        regs = of_get_property(dp, "reg", NULL);
-        if (!regs || regs->reg_size != 0x48)
-                goto fail;
+        err = -ENOMEM;
+        p = kzalloc(sizeof(*p), GFP_KERNEL);
+        if (!p) {
+                printk(KERN_ERR PFX "Could not allocate struct chmc.\n");
+                goto out;
+        }
 
-        mp->regs = ioremap(regs->phys_addr, regs->reg_size);
-        if (mp->regs == NULL)
-                goto fail;
+        p->portid = portid;
+        p->layout_size = len;
+        if (!pval)
+                p->layout_size = 0;
+        else
+                memcpy(&p->layout_prop, pval, len);
+
+        p->regs = of_ioremap(&op->resource[0], 0, 0x48, "chmc");
+        if (!p->regs) {
+                printk(KERN_ERR PFX "Could not map registers.\n");
+                goto out_free;
+        }
 
-        if (mp->layout_size != 0UL) {
-                mp->timing_control1 = read_mcreg(mp, CHMCTRL_TCTRL1);
-                mp->timing_control2 = read_mcreg(mp, CHMCTRL_TCTRL2);
-                mp->timing_control3 = read_mcreg(mp, CHMCTRL_TCTRL3);
-                mp->timing_control4 = read_mcreg(mp, CHMCTRL_TCTRL4);
-                mp->memaddr_control = read_mcreg(mp, CHMCTRL_MACTRL);
+        if (p->layout_size != 0UL) {
+                p->timing_control1 = chmc_read_mcreg(p, CHMCTRL_TCTRL1);
+                p->timing_control2 = chmc_read_mcreg(p, CHMCTRL_TCTRL2);
+                p->timing_control3 = chmc_read_mcreg(p, CHMCTRL_TCTRL3);
+                p->timing_control4 = chmc_read_mcreg(p, CHMCTRL_TCTRL4);
+                p->memaddr_control = chmc_read_mcreg(p, CHMCTRL_MACTRL);
         }
 
-        fetch_decode_regs(mp);
+        chmc_fetch_decode_regs(p);
 
-        list_add(&mp->list, &mctrl_list);
+        mc_list_add(&p->list);
 
-        /* Report the device. */
-        printk(KERN_INFO "%s: US3 memory controller at %p [%s]\n",
+        printk(KERN_INFO PFX "UltraSPARC-III memory controller at %s [%s]\n",
                dp->full_name,
-               mp->regs, (mp->layout_size ? "ACTIVE" : "INACTIVE"));
+               (p->layout_size ? "ACTIVE" : "INACTIVE"));
 
-        return 0;
+        dev_set_drvdata(&op->dev, p);
+
+        err = 0;
+
+out:
+        return err;
+
+out_free:
+        kfree(p);
+        goto out;
+}
 
-fail:
-        if (mp) {
-                if (mp->regs != NULL)
-                        iounmap(mp->regs);
-                kfree(mp);
+static int __devinit us3mc_probe(struct of_device *op,
+                                const struct of_device_id *match)
+{
+        if (mc_type == MC_TYPE_SAFARI)
+                return chmc_probe(op, match);
+        else if (mc_type == MC_TYPE_JBUS)
+                return jbusmc_probe(op, match);
+        return -ENODEV;
+}
+
+static void __devexit chmc_destroy(struct of_device *op, struct chmc *p)
+{
+        list_del(&p->list);
+        of_iounmap(&op->resource[0], p->regs, 0x48);
+        kfree(p);
+}
+
+static void __devexit jbusmc_destroy(struct of_device *op, struct jbusmc *p)
+{
+        mc_list_del(&p->list);
+        of_iounmap(&op->resource[0], p->regs, JBUSMC_REGS_SIZE);
+        kfree(p);
+}
+
+static int __devexit us3mc_remove(struct of_device *op)
+{
+        void *p = dev_get_drvdata(&op->dev);
+
+        if (p) {
+                if (mc_type == MC_TYPE_SAFARI)
+                        chmc_destroy(op, p);
+                else if (mc_type == MC_TYPE_JBUS)
+                        jbusmc_destroy(op, p);
         }
-        return -1;
+        return 0;
+}
+
+static const struct of_device_id us3mc_match[] = {
+        {
+                .name = "memory-controller",
+        },
+        {},
+};
+MODULE_DEVICE_TABLE(of, us3mc_match);
+
+static struct of_platform_driver us3mc_driver = {
+        .name           = "us3mc",
+        .match_table    = us3mc_match,
+        .probe          = us3mc_probe,
+        .remove         = __devexit_p(us3mc_remove),
+};
+
+static inline bool us3mc_platform(void)
+{
+        if (tlb_type == cheetah || tlb_type == cheetah_plus)
+                return true;
+        return false;
 }
 
-static int __init chmc_init(void)
+static int __init us3mc_init(void)
 {
-        struct device_node *dp;
+        unsigned long ver;
+        int ret;
 
-        /* This driver is only for cheetah platforms. */
-        if (tlb_type != cheetah && tlb_type != cheetah_plus)
+        if (!us3mc_platform())
                 return -ENODEV;
 
-        for_each_node_by_name(dp, "memory-controller")
-                init_one_mctrl(dp);
+        __asm__ ("rdpr %%ver, %0" : "=r" (ver));
+        if ((ver >> 32UL) == __JALAPENO_ID ||
+            (ver >> 32UL) == __SERRANO_ID) {
+                mc_type = MC_TYPE_JBUS;
+                us3mc_dimm_printer = jbusmc_print_dimm;
+        } else {
+                mc_type = MC_TYPE_SAFARI;
+                us3mc_dimm_printer = chmc_print_dimm;
+        }
 
-        for_each_node_by_name(dp, "mc-us3")
-                init_one_mctrl(dp);
+        ret = register_dimm_printer(us3mc_dimm_printer);
 
-        return 0;
+        if (!ret) {
+                ret = of_register_driver(&us3mc_driver, &of_bus_type);
+                if (ret)
+                        unregister_dimm_printer(us3mc_dimm_printer);
+        }
+        return ret;
 }
 
-static void __exit chmc_cleanup(void)
+static void __exit us3mc_cleanup(void)
 {
-        struct list_head *head = &mctrl_list;
-        struct list_head *tmp = head->next;
-
-        for (;;) {
-                struct mctrl_info *p =
-                        list_entry(tmp, struct mctrl_info, list);
-                if (tmp == head)
-                        break;
-                tmp = tmp->next;
-
-                list_del(&p->list);
-                iounmap(p->regs);
-                kfree(p);
+        if (us3mc_platform()) {
+                unregister_dimm_printer(us3mc_dimm_printer);
+                of_unregister_driver(&us3mc_driver);
         }
 }
 
-module_init(chmc_init);
-module_exit(chmc_cleanup);
+module_init(us3mc_init);
+module_exit(us3mc_cleanup);
diff --git a/arch/sparc64/kernel/cpu.c b/arch/sparc64/kernel/cpu.c
index 0097c08dc60..0c9ac83ed0a 100644
--- a/arch/sparc64/kernel/cpu.c
+++ b/arch/sparc64/kernel/cpu.c
@@ -1,7 +1,7 @@
 /* cpu.c: Dinky routines to look for the kind of Sparc cpu
  *        we are on.
  *
- * Copyright (C) 1996, 2007 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1996, 2007, 2008 David S. Miller (davem@davemloft.net)
  */
 
 #include <linux/kernel.h>
@@ -19,53 +19,86 @@
 
 DEFINE_PER_CPU(cpuinfo_sparc, __cpu_data) = { 0 };
 
-struct cpu_iu_info {
-  short manuf;
-  short impl;
-  char* cpu_name;   /* should be enough I hope... */
+struct cpu_chip_info {
+        unsigned short  manuf;
+        unsigned short  impl;
+        const char      *cpu_name;
+        const char      *fp_name;
 };
 
-struct cpu_fp_info {
-  short manuf;
-  short impl;
-  char fpu_vers;
-  char* fp_name;
+static const struct cpu_chip_info cpu_chips[] = {
+        {
+                .manuf          = 0x17,
+                .impl           = 0x10,
+                .cpu_name       = "TI UltraSparc I   (SpitFire)",
+                .fp_name        = "UltraSparc I integrated FPU",
+        },
+        {
+                .manuf          = 0x22,
+                .impl           = 0x10,
+                .cpu_name       = "TI UltraSparc I   (SpitFire)",
+                .fp_name        = "UltraSparc I integrated FPU",
+        },
+        {
+                .manuf          = 0x17,
+                .impl           = 0x11,
+                .cpu_name       = "TI UltraSparc II  (BlackBird)",
+                .fp_name        = "UltraSparc II integrated FPU",
+        },
+        {
+                .manuf          = 0x17,
+                .impl           = 0x12,
+                .cpu_name       = "TI UltraSparc IIi (Sabre)",
+                .fp_name        = "UltraSparc IIi integrated FPU",
+        },
+        {
+                .manuf          = 0x17,
+                .impl           = 0x13,
+                .cpu_name       = "TI UltraSparc IIe (Hummingbird)",
+                .fp_name        = "UltraSparc IIe integrated FPU",
+        },
+        {
+                .manuf          = 0x3e,
+                .impl           = 0x14,
+                .cpu_name       = "TI UltraSparc III (Cheetah)",
+                .fp_name        = "UltraSparc III integrated FPU",
+        },
+        {
+                .manuf          = 0x3e,
+                .impl           = 0x15,
+                .cpu_name       = "TI UltraSparc III+ (Cheetah+)",
+                .fp_name        = "UltraSparc III+ integrated FPU",
+        },
+        {
+                .manuf          = 0x3e,
+                .impl           = 0x16,
+                .cpu_name       = "TI UltraSparc IIIi (Jalapeno)",
+                .fp_name        = "UltraSparc IIIi integrated FPU",
+        },
+        {
+                .manuf          = 0x3e,
+                .impl           = 0x18,
+                .cpu_name       = "TI UltraSparc IV (Jaguar)",
+                .fp_name        = "UltraSparc IV integrated FPU",
+        },
+        {
+                .manuf          = 0x3e,
+                .impl           = 0x19,
+                .cpu_name       = "TI UltraSparc IV+ (Panther)",
+                .fp_name        = "UltraSparc IV+ integrated FPU",
+        },
+        {
+                .manuf          = 0x3e,
+                .impl           = 0x22,
+                .cpu_name       = "TI UltraSparc IIIi+ (Serrano)",
+                .fp_name        = "UltraSparc IIIi+ integrated FPU",
+        },
 };
 
-static struct cpu_fp_info linux_sparc_fpu[] = {
-  { 0x17, 0x10, 0, "UltraSparc I integrated FPU"},
-  { 0x22, 0x10, 0, "UltraSparc I integrated FPU"},
-  { 0x17, 0x11, 0, "UltraSparc II integrated FPU"},
-  { 0x17, 0x12, 0, "UltraSparc IIi integrated FPU"},
-  { 0x17, 0x13, 0, "UltraSparc IIe integrated FPU"},
-  { 0x3e, 0x14, 0, "UltraSparc III integrated FPU"},
-  { 0x3e, 0x15, 0, "UltraSparc III+ integrated FPU"},
-  { 0x3e, 0x16, 0, "UltraSparc IIIi integrated FPU"},
-  { 0x3e, 0x18, 0, "UltraSparc IV integrated FPU"},
-  { 0x3e, 0x19, 0, "UltraSparc IV+ integrated FPU"},
-  { 0x3e, 0x22, 0, "UltraSparc IIIi+ integrated FPU"},
-};
-
-#define NSPARCFPU  ARRAY_SIZE(linux_sparc_fpu)
-
-static struct cpu_iu_info linux_sparc_chips[] = {
-  { 0x17, 0x10, "TI UltraSparc I   (SpitFire)"},
-  { 0x22, 0x10, "TI UltraSparc I   (SpitFire)"},
-  { 0x17, 0x11, "TI UltraSparc II  (BlackBird)"},
-  { 0x17, 0x12, "TI UltraSparc IIi (Sabre)"},
-  { 0x17, 0x13, "TI UltraSparc IIe (Hummingbird)"},
-  { 0x3e, 0x14, "TI UltraSparc III (Cheetah)"},
-  { 0x3e, 0x15, "TI UltraSparc III+ (Cheetah+)"},
-  { 0x3e, 0x16, "TI UltraSparc IIIi (Jalapeno)"},
-  { 0x3e, 0x18, "TI UltraSparc IV (Jaguar)"},
-  { 0x3e, 0x19, "TI UltraSparc IV+ (Panther)"},
-  { 0x3e, 0x22, "TI UltraSparc IIIi+ (Serrano)"},
-};
+#define NSPARCCHIPS ARRAY_SIZE(linux_sparc_chips)
 
-#define NSPARCCHIPS  ARRAY_SIZE(linux_sparc_chips)
-
-char *sparc_cpu_type;
-char *sparc_fpu_type;
+const char *sparc_cpu_type;
+const char *sparc_fpu_type;
 
 static void __init sun4v_cpu_probe(void)
 {
@@ -89,68 +122,45 @@ static void __init sun4v_cpu_probe(void)
         }
 }
 
-void __init cpu_probe(void)
+static const struct cpu_chip_info * __init find_cpu_chip(unsigned short manuf,
+                                                         unsigned short impl)
 {
-        unsigned long ver, fpu_vers, manuf, impl, fprs;
         int i;
-        
-        if (tlb_type == hypervisor) {
-                sun4v_cpu_probe();
-                return;
-        }
 
-        fprs = fprs_read();
-        fprs_write(FPRS_FEF);
-        __asm__ __volatile__ ("rdpr %%ver, %0; stx %%fsr, [%1]"
-                              : "=&r" (ver)
-                              : "r" (&fpu_vers));
-        fprs_write(fprs);
-        
-        manuf = ((ver >> 48) & 0xffff);
-        impl = ((ver >> 32) & 0xffff);
-
-        fpu_vers = ((fpu_vers >> 17) & 0x7);
-
-retry:
-        for (i = 0; i < NSPARCCHIPS; i++) {
-                if (linux_sparc_chips[i].manuf == manuf) {
-                        if (linux_sparc_chips[i].impl == impl) {
-                                sparc_cpu_type =
-                                        linux_sparc_chips[i].cpu_name;
-                                break;
-                        }
-                }
-        }
+        for (i = 0; i < ARRAY_SIZE(cpu_chips); i++) {
+                const struct cpu_chip_info *p = &cpu_chips[i];
 
-        if (i == NSPARCCHIPS) {
-                /* Maybe it is a cheetah+ derivative, report it as cheetah+
-                 * in that case until we learn the real names.
-                 */
-                if (manuf == 0x3e &&
-                    impl > 0x15) {
-                        impl = 0x15;
-                        goto retry;
-                } else {
-                        printk("DEBUG: manuf[%lx] impl[%lx]\n",
-                               manuf, impl);
-                }
-                sparc_cpu_type = "Unknown CPU";
+                if (p->manuf == manuf && p->impl == impl)
+                        return p;
         }
+        return NULL;
+}
 
-        for (i = 0; i < NSPARCFPU; i++) {
-                if (linux_sparc_fpu[i].manuf == manuf &&
-                    linux_sparc_fpu[i].impl == impl) {
-                        if (linux_sparc_fpu[i].fpu_vers == fpu_vers) {
-                                sparc_fpu_type =
-                                        linux_sparc_fpu[i].fp_name;
-                                break;
-                        }
+static int __init cpu_type_probe(void)
+{
+        if (tlb_type == hypervisor) {
+                sun4v_cpu_probe();
+        } else {
+                unsigned long ver, manuf, impl;
+                const struct cpu_chip_info *p;
+        
+                __asm__ __volatile__("rdpr %%ver, %0" : "=r" (ver));
+        
+                manuf = ((ver >> 48) & 0xffff);
+                impl = ((ver >> 32) & 0xffff);
+
+                p = find_cpu_chip(manuf, impl);
+                if (p) {
+                        sparc_cpu_type = p->cpu_name;
+                        sparc_fpu_type = p->fp_name;
+                } else {
+                        printk(KERN_ERR "CPU: Unknown chip, manuf[%lx] impl[%lx]\n",
+                               manuf, impl);
+                        sparc_cpu_type = "Unknown CPU";
+                        sparc_fpu_type = "Unknown FPU";
                 }
         }
-
-        if (i == NSPARCFPU) {
-                printk("DEBUG: manuf[%lx] impl[%lx] fsr.vers[%lx]\n",
-                       manuf, impl, fpu_vers);
-                sparc_fpu_type = "Unknown FPU";
-        }
+        return 0;
 }
+
+arch_initcall(cpu_type_probe);
diff --git a/arch/sparc64/kernel/ds.c b/arch/sparc64/kernel/ds.c
index d0fa5aa3893..f52e0534d91 100644
--- a/arch/sparc64/kernel/ds.c
+++ b/arch/sparc64/kernel/ds.c
@@ -1,6 +1,6 @@
 /* ds.c: Domain Services driver for Logical Domains
  *
- * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
+ * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net>
  */
 
 #include <linux/kernel.h>
@@ -1217,7 +1217,7 @@ static int ds_remove(struct vio_dev *vdev)
         return 0;
 }
 
-static struct vio_device_id ds_match[] = {
+static struct vio_device_id __initdata ds_match[] = {
         {
                 .type = "domain-services-port",
         },
diff --git a/arch/sparc64/kernel/ebus.c b/arch/sparc64/kernel/ebus.c
index 60d36d14255..77dbf6d45fa 100644
--- a/arch/sparc64/kernel/ebus.c
+++ b/arch/sparc64/kernel/ebus.c
@@ -1,5 +1,4 @@
-/*
- * ebus.c: PCI to EBus bridge device.
+/* ebus.c: EBUS DMA library code.
  *
  * Copyright (C) 1997  Eddie C. Dost  (ecd@skynet.be)
  * Copyright (C) 1999  David S. Miller (davem@redhat.com)
@@ -9,23 +8,11 @@
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/string.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/of_device.h>
-
-#include <asm/system.h>
-#include <asm/page.h>
-#include <asm/ebus.h>
-#include <asm/oplib.h>
-#include <asm/prom.h>
-#include <asm/bpp.h>
-#include <asm/irq.h>
-#include <asm/io.h>
 
-/* EBUS dma library. */
+#include <asm/ebus_dma.h>
+#include <asm/io.h>
 
 #define EBDMA_CSR       0x00UL  /* Control/Status */
 #define EBDMA_ADDR      0x04UL  /* DMA Address */
@@ -268,283 +255,3 @@ void ebus_dma_enable(struct ebus_dma_info *p, int on)
         spin_unlock_irqrestore(&p->lock, flags);
 }
 EXPORT_SYMBOL(ebus_dma_enable);
-
-struct linux_ebus *ebus_chain = NULL;
-
-static inline void *ebus_alloc(size_t size)
-{
-        void *mem;
-
-        mem = kzalloc(size, GFP_ATOMIC);
-        if (!mem)
-                panic("ebus_alloc: out of memory");
-        return mem;
-}
-
-static void __init fill_ebus_child(struct device_node *dp,
-                                   struct linux_ebus_child *dev,
-                                   int non_standard_regs)
-{
-        struct of_device *op;
-        const int *regs;
-        int i, len;
-
-        dev->prom_node = dp;
-        printk(" (%s)", dp->name);
-
-        regs = of_get_property(dp, "reg", &len);
-        if (!regs)
-                dev->num_addrs = 0;
-        else
-                dev->num_addrs = len / sizeof(regs[0]);
-
-        if (non_standard_regs) {
-                /* This is to handle reg properties which are not
-                 * in the parent relative format.  One example are
-                 * children of the i2c device on CompactPCI systems.
-                 *
-                 * So, for such devices we just record the property
-                 * raw in the child resources.
-                 */
-                for (i = 0; i < dev->num_addrs; i++)
-                        dev->resource[i].start = regs[i];
-        } else {
-                for (i = 0; i < dev->num_addrs; i++) {
-                        int rnum = regs[i];
-                        if (rnum >= dev->parent->num_addrs) {
-                                prom_printf("UGH: property for %s was %d, need < %d\n",
-                                            dp->name, len, dev->parent->num_addrs);
-                                prom_halt();
-                        }
-                        dev->resource[i].start = dev->parent->resource[i].start;
-                        dev->resource[i].end = dev->parent->resource[i].end;
-                        dev->resource[i].flags = IORESOURCE_MEM;
-                        dev->resource[i].name = dp->name;
-                }
-        }
-
-        op = of_find_device_by_node(dp);
-        if (!op) {
-                dev->num_irqs = 0;
-        } else {
-                dev->num_irqs = op->num_irqs;
-                for (i = 0; i < dev->num_irqs; i++)
-                        dev->irqs[i] = op->irqs[i];
-        }
-
-        if (!dev->num_irqs) {
-                /*
-                 * Oh, well, some PROMs don't export interrupts
-                 * property to children of EBus devices...
-                 *
-                 * Be smart about PS/2 keyboard and mouse.
-                 */
-                if (!strcmp(dev->parent->prom_node->name, "8042")) {
-                        if (!strcmp(dev->prom_node->name, "kb_ps2")) {
-                                dev->num_irqs = 1;
-                                dev->irqs[0] = dev->parent->irqs[0];
-                        } else {
-                                dev->num_irqs = 1;
-                                dev->irqs[0] = dev->parent->irqs[1];
-                        }
-                }
-        }
-}
-
-static int __init child_regs_nonstandard(struct linux_ebus_device *dev)
-{
-        if (!strcmp(dev->prom_node->name, "i2c") ||
-            !strcmp(dev->prom_node->name, "SUNW,lombus"))
-                return 1;
-        return 0;
-}
-
-static void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_device *dev)
-{
-        struct linux_ebus_child *child;
-        struct dev_archdata *sd;
-        struct of_device *op;
-        int i, len;
-
-        dev->prom_node = dp;
-
-        printk(" [%s", dp->name);
-
-        op = of_find_device_by_node(dp);
-        if (!op) {
-                dev->num_addrs = 0;
-                dev->num_irqs = 0;
-        } else {
-                const int *regs = of_get_property(dp, "reg", &len);
-
-                if (!regs)
-                        len = 0;
-                dev->num_addrs = len / sizeof(struct linux_prom_registers);
-
-                for (i = 0; i < dev->num_addrs; i++)
-                        memcpy(&dev->resource[i],
-                               &op->resource[i],
-                               sizeof(struct resource));
-
-                dev->num_irqs = op->num_irqs;
-                for (i = 0; i < dev->num_irqs; i++)
-                        dev->irqs[i] = op->irqs[i];
-        }
-
-        sd = &dev->ofdev.dev.archdata;
-        sd->prom_node = dp;
-        sd->op = &dev->ofdev;
-        sd->iommu = dev->bus->ofdev.dev.parent->archdata.iommu;
-        sd->stc = dev->bus->ofdev.dev.parent->archdata.stc;
-        sd->numa_node = dev->bus->ofdev.dev.parent->archdata.numa_node;
-
-        dev->ofdev.node = dp;
-        dev->ofdev.dev.parent = &dev->bus->ofdev.dev;
-        dev->ofdev.dev.bus = &ebus_bus_type;
-        dev_set_name(&dev->ofdev.dev, "ebus[%08x]", dp->node);
-
-        /* Register with core */
-        if (of_device_register(&dev->ofdev) != 0)
-                printk(KERN_DEBUG "ebus: device registration error for %s!\n",
-                       dp->path_component_name);
-
-        dp = dp->child;
-        if (dp) {
-                printk(" ->");
-                dev->children = ebus_alloc(sizeof(struct linux_ebus_child));
-
-                child = dev->children;
-                child->next = NULL;
-                child->parent = dev;
-                child->bus = dev->bus;
-                fill_ebus_child(dp, child,
-                                child_regs_nonstandard(dev));
-
-                while ((dp = dp->sibling) != NULL) {
-                        child->next = ebus_alloc(sizeof(struct linux_ebus_child));
-
-                        child = child->next;
-                        child->next = NULL;
-                        child->parent = dev;
-                        child->bus = dev->bus;
-                        fill_ebus_child(dp, child,
-                                        child_regs_nonstandard(dev));
-                }
-        }
-        printk("]");
-}
-
-static struct pci_dev *find_next_ebus(struct pci_dev *start, int *is_rio_p)
-{
-        struct pci_dev *pdev = start;
-
-        while ((pdev = pci_get_device(PCI_VENDOR_ID_SUN, PCI_ANY_ID, pdev)))
-                if (pdev->device == PCI_DEVICE_ID_SUN_EBUS ||
-                        pdev->device == PCI_DEVICE_ID_SUN_RIO_EBUS)
-                        break;
-
-        *is_rio_p = !!(pdev && (pdev->device == PCI_DEVICE_ID_SUN_RIO_EBUS));
-
-        return pdev;
-}
-
-void __init ebus_init(void)
-{
-        struct linux_ebus_device *dev;
-        struct linux_ebus *ebus;
-        struct pci_dev *pdev;
-        struct device_node *dp;
-        int is_rio;
-        int num_ebus = 0;
-
-        pdev = find_next_ebus(NULL, &is_rio);
-        if (!pdev) {
-                printk("ebus: No EBus's found.\n");
-                return;
-        }
-
-        dp = pci_device_to_OF_node(pdev);
-
-        ebus_chain = ebus = ebus_alloc(sizeof(struct linux_ebus));
-        ebus->next = NULL;
-        ebus->is_rio = is_rio;
-
-        while (dp) {
-                struct device_node *child;
-
-                /* SUNW,pci-qfe uses four empty ebuses on it.
-                   I think we should not consider them here,
-                   as they have half of the properties this
-                   code expects and once we do PCI hot-plug,
-                   we'd have to tweak with the ebus_chain
-                   in the runtime after initialization. -jj */
-                if (!dp->child) {
-                        pdev = find_next_ebus(pdev, &is_rio);
-                        if (!pdev) {
-                                if (ebus == ebus_chain) {
-                                        ebus_chain = NULL;
-                                        printk("ebus: No EBus's found.\n");
-                                        return;
-                                }
-                                break;
-                        }
-                        ebus->is_rio = is_rio;
-                        dp = pci_device_to_OF_node(pdev);
-                        continue;
-                }
-                printk("ebus%d:", num_ebus);
-
-                ebus->index = num_ebus;
-                ebus->prom_node = dp;
-                ebus->self = pdev;
-
-                ebus->ofdev.node = dp;
-                ebus->ofdev.dev.parent = &pdev->dev;
-                ebus->ofdev.dev.bus = &ebus_bus_type;
-                dev_set_name(&ebus->ofdev.dev, "ebus%d", num_ebus);
-
-                /* Register with core */
-                if (of_device_register(&ebus->ofdev) != 0)
-                        printk(KERN_DEBUG "ebus: device registration error for %s!\n",
-                               dp->path_component_name);
-
-
-                child = dp->child;
-                if (!child)
-                        goto next_ebus;
-
-                ebus->devices = ebus_alloc(sizeof(struct linux_ebus_device));
-
-                dev = ebus->devices;
-                dev->next = NULL;
-                dev->children = NULL;
-                dev->bus = ebus;
-                fill_ebus_device(child, dev);
-
-                while ((child = child->sibling) != NULL) {
-                        dev->next = ebus_alloc(sizeof(struct linux_ebus_device));
-
-                        dev = dev->next;
-                        dev->next = NULL;
-                        dev->children = NULL;
-                        dev->bus = ebus;
-                        fill_ebus_device(child, dev);
-                }
-
-        next_ebus:
-                printk("\n");
-
-                pdev = find_next_ebus(pdev, &is_rio);
-                if (!pdev)
-                        break;
-
-                dp = pci_device_to_OF_node(pdev);
-
-                ebus->next = ebus_alloc(sizeof(struct linux_ebus));
-                ebus = ebus->next;
-                ebus->next = NULL;
-                ebus->is_rio = is_rio;
-                ++num_ebus;
-        }
-        pci_dev_put(pdev); /* XXX for the case, when ebusnd is 0, is it OK? */
-}
diff --git a/arch/sparc64/kernel/entry.h b/arch/sparc64/kernel/entry.h
index fc294a29289..34d7ab5e10d 100644
--- a/arch/sparc64/kernel/entry.h
+++ b/arch/sparc64/kernel/entry.h
@@ -5,8 +5,8 @@
 #include <linux/types.h>
 #include <linux/init.h>
 
-extern char *sparc_cpu_type;
-extern char *sparc_fpu_type;
+extern const char *sparc_cpu_type;
+extern const char *sparc_fpu_type;
 
 extern void __init per_cpu_patch(void);
 extern void __init sun4v_patch(void);
@@ -22,7 +22,8 @@ extern void do_notify_resume(struct pt_regs *regs,
                              unsigned long orig_i0,
                              unsigned long thread_info_flags);
 
-extern asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p);
+extern asmlinkage int syscall_trace_enter(struct pt_regs *regs);
+extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
 
 extern void bad_trap_tl1(struct pt_regs *regs, long lvl);
 
diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S
index c9afef093d5..353226fa023 100644
--- a/arch/sparc64/kernel/head.S
+++ b/arch/sparc64/kernel/head.S
@@ -10,6 +10,7 @@
 #include <linux/errno.h>
 #include <linux/threads.h>
 #include <linux/init.h>
+#include <linux/linkage.h>
 #include <asm/thread_info.h>
 #include <asm/asi.h>
 #include <asm/pstate.h>
diff --git a/arch/sparc64/kernel/hvapi.c b/arch/sparc64/kernel/hvapi.c
index 691760b5b01..1d272c3b574 100644
--- a/arch/sparc64/kernel/hvapi.c
+++ b/arch/sparc64/kernel/hvapi.c
@@ -9,7 +9,6 @@
 
 #include <asm/hypervisor.h>
 #include <asm/oplib.h>
-#include <asm/sstate.h>
 
 /* If the hypervisor indicates that the API setting
  * calls are unsupported, by returning HV_EBADTRAP or
@@ -184,8 +183,6 @@ void __init sun4v_hvapi_init(void)
         if (sun4v_hvapi_register(group, major, &minor))
                 goto bad;
 
-        sun4v_sstate_init();
-
         return;
 
 bad:
diff --git a/arch/sparc64/kernel/hvcalls.S b/arch/sparc64/kernel/hvcalls.S
index a2810f3ac70..e066269d159 100644
--- a/arch/sparc64/kernel/hvcalls.S
+++ b/arch/sparc64/kernel/hvcalls.S
@@ -3,89 +3,75 @@
          *
          * returns %o0: sysino
          */
-        .globl  sun4v_devino_to_sysino
-        .type   sun4v_devino_to_sysino,#function
-sun4v_devino_to_sysino:
+ENTRY(sun4v_devino_to_sysino)
         mov     HV_FAST_INTR_DEVINO2SYSINO, %o5
         ta      HV_FAST_TRAP
         retl
          mov    %o1, %o0
-        .size   sun4v_devino_to_sysino, .-sun4v_devino_to_sysino
+ENDPROC(sun4v_devino_to_sysino)
 
         /* %o0: sysino
          *
          * returns %o0: intr_enabled (HV_INTR_{DISABLED,ENABLED})
          */
-        .globl  sun4v_intr_getenabled
-        .type   sun4v_intr_getenabled,#function
-sun4v_intr_getenabled:
+ENTRY(sun4v_intr_getenabled)
         mov     HV_FAST_INTR_GETENABLED, %o5
         ta      HV_FAST_TRAP
         retl
          mov    %o1, %o0
-        .size   sun4v_intr_getenabled, .-sun4v_intr_getenabled
+ENDPROC(sun4v_intr_getenabled)
 
         /* %o0: sysino
          * %o1: intr_enabled (HV_INTR_{DISABLED,ENABLED})
          */
-        .globl  sun4v_intr_setenabled
-        .type   sun4v_intr_setenabled,#function
-sun4v_intr_setenabled:
+ENTRY(sun4v_intr_setenabled)
         mov     HV_FAST_INTR_SETENABLED, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_intr_setenabled, .-sun4v_intr_setenabled
+ENDPROC(sun4v_intr_setenabled)
 
         /* %o0: sysino
          *
          * returns %o0: intr_state (HV_INTR_STATE_*)
          */
-        .globl  sun4v_intr_getstate
-        .type   sun4v_intr_getstate,#function
-sun4v_intr_getstate:
+ENTRY(sun4v_intr_getstate)
         mov     HV_FAST_INTR_GETSTATE, %o5
         ta      HV_FAST_TRAP
         retl
          mov    %o1, %o0
-        .size   sun4v_intr_getstate, .-sun4v_intr_getstate
+ENDPROC(sun4v_intr_getstate)
 
         /* %o0: sysino
          * %o1: intr_state (HV_INTR_STATE_*)
          */
-        .globl  sun4v_intr_setstate
-        .type   sun4v_intr_setstate,#function
-sun4v_intr_setstate:
+ENTRY(sun4v_intr_setstate)
         mov     HV_FAST_INTR_SETSTATE, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_intr_setstate, .-sun4v_intr_setstate
+ENDPROC(sun4v_intr_setstate)
 
         /* %o0: sysino
          *
          * returns %o0: cpuid
          */
-        .globl  sun4v_intr_gettarget
-        .type   sun4v_intr_gettarget,#function
-sun4v_intr_gettarget:
+ENTRY(sun4v_intr_gettarget)
         mov     HV_FAST_INTR_GETTARGET, %o5
         ta      HV_FAST_TRAP
         retl
          mov    %o1, %o0
-        .size   sun4v_intr_gettarget, .-sun4v_intr_gettarget
+ENDPROC(sun4v_intr_gettarget)
 
         /* %o0: sysino
          * %o1: cpuid
          */
-        .globl  sun4v_intr_settarget
-        .type   sun4v_intr_settarget,#function
-sun4v_intr_settarget:
+ENTRY(sun4v_intr_settarget)
         mov     HV_FAST_INTR_SETTARGET, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_intr_settarget, .-sun4v_intr_settarget
+ENDPROC(sun4v_intr_settarget)
 
         /* %o0: cpuid
          * %o1: pc
@@ -94,37 +80,31 @@ sun4v_intr_settarget:
          *
          * returns %o0: status
          */
-        .globl  sun4v_cpu_start
-        .type   sun4v_cpu_start,#function
-sun4v_cpu_start:
+ENTRY(sun4v_cpu_start)
         mov     HV_FAST_CPU_START, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_cpu_start, .-sun4v_cpu_start
+ENDPROC(sun4v_cpu_start)
 
         /* %o0: cpuid
          *
          * returns %o0: status
          */
-        .globl  sun4v_cpu_stop
-        .type   sun4v_cpu_stop,#function
-sun4v_cpu_stop:
+ENTRY(sun4v_cpu_stop)
         mov     HV_FAST_CPU_STOP, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_cpu_stop, .-sun4v_cpu_stop
+ENDPROC(sun4v_cpu_stop)
 
         /* returns %o0: status  */
-        .globl  sun4v_cpu_yield
-        .type   sun4v_cpu_yield, #function
-sun4v_cpu_yield:
+ENTRY(sun4v_cpu_yield)
         mov     HV_FAST_CPU_YIELD, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_cpu_yield, .-sun4v_cpu_yield
+ENDPROC(sun4v_cpu_yield)
 
         /* %o0: type
          * %o1: queue paddr
@@ -132,14 +112,12 @@ sun4v_cpu_yield:
          *
          * returns %o0: status
          */
-        .globl  sun4v_cpu_qconf
-        .type   sun4v_cpu_qconf,#function
-sun4v_cpu_qconf:
+ENTRY(sun4v_cpu_qconf)
         mov     HV_FAST_CPU_QCONF, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_cpu_qconf, .-sun4v_cpu_qconf
+ENDPROC(sun4v_cpu_qconf)
 
         /* %o0: num cpus in cpu list
          * %o1: cpu list paddr
@@ -147,23 +125,19 @@ sun4v_cpu_qconf:
          *
          * returns %o0: status
          */
-        .globl  sun4v_cpu_mondo_send
-        .type   sun4v_cpu_mondo_send,#function
-sun4v_cpu_mondo_send:
+ENTRY(sun4v_cpu_mondo_send)
         mov     HV_FAST_CPU_MONDO_SEND, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_cpu_mondo_send, .-sun4v_cpu_mondo_send
+ENDPROC(sun4v_cpu_mondo_send)
 
         /* %o0: CPU ID
          *
          * returns %o0: -status if status non-zero, else
          *         %o0: cpu state as HV_CPU_STATE_*
          */
-        .globl  sun4v_cpu_state
-        .type   sun4v_cpu_state,#function
-sun4v_cpu_state:
+ENTRY(sun4v_cpu_state)
         mov     HV_FAST_CPU_STATE, %o5
         ta      HV_FAST_TRAP
         brnz,pn %o0, 1f
@@ -171,7 +145,7 @@ sun4v_cpu_state:
         mov     %o1, %o0
 1:      retl
          nop
-        .size   sun4v_cpu_state, .-sun4v_cpu_state
+ENDPROC(sun4v_cpu_state)
 
         /* %o0: virtual address
          * %o1: must be zero
@@ -180,28 +154,24 @@ sun4v_cpu_state:
          *
          * returns %o0: status
          */
-        .globl  sun4v_mmu_map_perm_addr
-        .type   sun4v_mmu_map_perm_addr,#function
-sun4v_mmu_map_perm_addr:
+ENTRY(sun4v_mmu_map_perm_addr)
         mov     HV_FAST_MMU_MAP_PERM_ADDR, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_mmu_map_perm_addr, .-sun4v_mmu_map_perm_addr
+ENDPROC(sun4v_mmu_map_perm_addr)
 
         /* %o0: number of TSB descriptions
          * %o1: TSB descriptions real address
          *
          * returns %o0: status
          */
-        .globl  sun4v_mmu_tsb_ctx0
-        .type   sun4v_mmu_tsb_ctx0,#function
-sun4v_mmu_tsb_ctx0:
+ENTRY(sun4v_mmu_tsb_ctx0)
         mov     HV_FAST_MMU_TSB_CTX0, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_mmu_tsb_ctx0, .-sun4v_mmu_tsb_ctx0
+ENDPROC(sun4v_mmu_tsb_ctx0)
 
         /* %o0: API group number
          * %o1: pointer to unsigned long major number storage
@@ -209,9 +179,7 @@ sun4v_mmu_tsb_ctx0:
          *
          * returns %o0: status
          */
-        .globl  sun4v_get_version
-        .type   sun4v_get_version,#function
-sun4v_get_version:
+ENTRY(sun4v_get_version)
         mov     HV_CORE_GET_VER, %o5
         mov     %o1, %o3
         mov     %o2, %o4
@@ -219,7 +187,7 @@ sun4v_get_version:
         stx     %o1, [%o3]
         retl
          stx    %o2, [%o4]
-        .size   sun4v_get_version, .-sun4v_get_version
+ENDPROC(sun4v_get_version)
 
         /* %o0: API group number
          * %o1: desired major number
@@ -228,51 +196,43 @@ sun4v_get_version:
          *
          * returns %o0: status
          */
-        .globl  sun4v_set_version
-        .type   sun4v_set_version,#function
-sun4v_set_version:
+ENTRY(sun4v_set_version)
         mov     HV_CORE_SET_VER, %o5
         mov     %o3, %o4
         ta      HV_CORE_TRAP
         retl
          stx    %o1, [%o4]
-        .size   sun4v_set_version, .-sun4v_set_version
+ENDPROC(sun4v_set_version)
 
         /* %o0: pointer to unsigned long time
          *
          * returns %o0: status
          */
-        .globl  sun4v_tod_get
-        .type   sun4v_tod_get,#function
-sun4v_tod_get:
+ENTRY(sun4v_tod_get)
         mov     %o0, %o4
         mov     HV_FAST_TOD_GET, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o4]
         retl
          nop
-        .size   sun4v_tod_get, .-sun4v_tod_get
+ENDPROC(sun4v_tod_get)
 
         /* %o0: time
          *
          * returns %o0: status
          */
-        .globl  sun4v_tod_set
-        .type   sun4v_tod_set,#function
-sun4v_tod_set:
+ENTRY(sun4v_tod_set)
         mov     HV_FAST_TOD_SET, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_tod_set, .-sun4v_tod_set
+ENDPROC(sun4v_tod_set)
 
         /* %o0: pointer to unsigned long status
          *
          * returns %o0: signed character
          */
-        .globl  sun4v_con_getchar
-        .type   sun4v_con_getchar,#function
-sun4v_con_getchar:
+ENTRY(sun4v_con_getchar)
         mov     %o0, %o4
         mov     HV_FAST_CONS_GETCHAR, %o5
         clr     %o0
@@ -281,20 +241,18 @@ sun4v_con_getchar:
         stx     %o0, [%o4]
         retl
          sra    %o1, 0, %o0
-        .size   sun4v_con_getchar, .-sun4v_con_getchar
+ENDPROC(sun4v_con_getchar)
 
         /* %o0: signed long character
          *
          * returns %o0: status
          */
-        .globl  sun4v_con_putchar
-        .type   sun4v_con_putchar,#function
-sun4v_con_putchar:
+ENTRY(sun4v_con_putchar)
         mov     HV_FAST_CONS_PUTCHAR, %o5
         ta      HV_FAST_TRAP
         retl
          sra    %o0, 0, %o0
-        .size   sun4v_con_putchar, .-sun4v_con_putchar
+ENDPROC(sun4v_con_putchar)
 
         /* %o0: buffer real address
          * %o1: buffer size
@@ -302,9 +260,7 @@ sun4v_con_putchar:
          *
          * returns %o0: status
          */
-        .globl  sun4v_con_read
-        .type   sun4v_con_read,#function
-sun4v_con_read:
+ENTRY(sun4v_con_read)
         mov     %o2, %o4
         mov     HV_FAST_CONS_READ, %o5
         ta      HV_FAST_TRAP
@@ -318,7 +274,7 @@ sun4v_con_read:
         stx     %o1, [%o4]
 1:      retl
          nop
-        .size   sun4v_con_read, .-sun4v_con_read
+ENDPROC(sun4v_con_read)
 
         /* %o0: buffer real address
          * %o1: buffer size
@@ -326,43 +282,37 @@ sun4v_con_read:
          *
          * returns %o0: status
          */
-        .globl  sun4v_con_write
-        .type   sun4v_con_write,#function
-sun4v_con_write:
+ENTRY(sun4v_con_write)
         mov     %o2, %o4
         mov     HV_FAST_CONS_WRITE, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o4]
         retl
          nop
-        .size   sun4v_con_write, .-sun4v_con_write
+ENDPROC(sun4v_con_write)
 
         /* %o0: soft state
          * %o1: address of description string
          *
          * returns %o0: status
          */
-        .globl  sun4v_mach_set_soft_state
-        .type   sun4v_mach_set_soft_state,#function
-sun4v_mach_set_soft_state:
+ENTRY(sun4v_mach_set_soft_state)
         mov     HV_FAST_MACH_SET_SOFT_STATE, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_mach_set_soft_state, .-sun4v_mach_set_soft_state
+ENDPROC(sun4v_mach_set_soft_state)
 
         /* %o0: exit code
          *
          * Does not return.
          */
-        .globl  sun4v_mach_exit
-        .type   sun4v_mach_exit,#function
-sun4v_mach_exit:
+ENTRY(sun4v_mach_exit)
         mov     HV_FAST_MACH_EXIT, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_mach_exit, .-sun4v_mach_exit
+ENDPROC(sun4v_mach_exit)
 
         /* %o0: buffer real address
          * %o1: buffer length
@@ -370,44 +320,38 @@ sun4v_mach_exit:
          *
          * returns %o0: status
          */
-        .globl  sun4v_mach_desc
-        .type   sun4v_mach_desc,#function
-sun4v_mach_desc:
+ENTRY(sun4v_mach_desc)
         mov     %o2, %o4
         mov     HV_FAST_MACH_DESC, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o4]
         retl
          nop
-        .size   sun4v_mach_desc, .-sun4v_mach_desc
+ENDPROC(sun4v_mach_desc)
 
         /* %o0: new timeout in milliseconds
          * %o1: pointer to unsigned long orig_timeout
          *
          * returns %o0: status
          */
-        .globl  sun4v_mach_set_watchdog
-        .type   sun4v_mach_set_watchdog,#function
-sun4v_mach_set_watchdog:
+ENTRY(sun4v_mach_set_watchdog)
         mov     %o1, %o4
         mov     HV_FAST_MACH_SET_WATCHDOG, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o4]
         retl
          nop
-        .size   sun4v_mach_set_watchdog, .-sun4v_mach_set_watchdog
+ENDPROC(sun4v_mach_set_watchdog)
 
         /* No inputs and does not return.  */
-        .globl  sun4v_mach_sir
-        .type   sun4v_mach_sir,#function
-sun4v_mach_sir:
+ENTRY(sun4v_mach_sir)
         mov     %o1, %o4
         mov     HV_FAST_MACH_SIR, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o4]
         retl
          nop
-        .size   sun4v_mach_sir, .-sun4v_mach_sir
+ENDPROC(sun4v_mach_sir)
 
         /* %o0: channel
          * %o1: ra
@@ -415,14 +359,12 @@ sun4v_mach_sir:
          *
          * returns %o0: status
          */
-        .globl  sun4v_ldc_tx_qconf
-        .type   sun4v_ldc_tx_qconf,#function
-sun4v_ldc_tx_qconf:
+ENTRY(sun4v_ldc_tx_qconf)
         mov     HV_FAST_LDC_TX_QCONF, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_ldc_tx_qconf, .-sun4v_ldc_tx_qconf
+ENDPROC(sun4v_ldc_tx_qconf)
 
         /* %o0: channel
          * %o1: pointer to unsigned long ra
@@ -430,9 +372,7 @@ sun4v_ldc_tx_qconf:
          *
          * returns %o0: status
          */
-        .globl  sun4v_ldc_tx_qinfo
-        .type   sun4v_ldc_tx_qinfo,#function
-sun4v_ldc_tx_qinfo:
+ENTRY(sun4v_ldc_tx_qinfo)
         mov     %o1, %g1
         mov     %o2, %g2
         mov     HV_FAST_LDC_TX_QINFO, %o5
@@ -441,7 +381,7 @@ sun4v_ldc_tx_qinfo:
         stx     %o2, [%g2]
         retl
          nop
-        .size   sun4v_ldc_tx_qinfo, .-sun4v_ldc_tx_qinfo
+ENDPROC(sun4v_ldc_tx_qinfo)
 
         /* %o0: channel
          * %o1: pointer to unsigned long head_off
@@ -450,9 +390,7 @@ sun4v_ldc_tx_qinfo:
          *
          * returns %o0: status
          */
-        .globl  sun4v_ldc_tx_get_state
-        .type   sun4v_ldc_tx_get_state,#function
-sun4v_ldc_tx_get_state:
+ENTRY(sun4v_ldc_tx_get_state)
         mov     %o1, %g1
         mov     %o2, %g2
         mov     %o3, %g3
@@ -463,21 +401,19 @@ sun4v_ldc_tx_get_state:
         stx     %o3, [%g3]
         retl
          nop
-        .size   sun4v_ldc_tx_get_state, .-sun4v_ldc_tx_get_state
+ENDPROC(sun4v_ldc_tx_get_state)
 
         /* %o0: channel
          * %o1: tail_off
          *
          * returns %o0: status
          */
-        .globl  sun4v_ldc_tx_set_qtail
-        .type   sun4v_ldc_tx_set_qtail,#function
-sun4v_ldc_tx_set_qtail:
+ENTRY(sun4v_ldc_tx_set_qtail)
         mov     HV_FAST_LDC_TX_SET_QTAIL, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_ldc_tx_set_qtail, .-sun4v_ldc_tx_set_qtail
+ENDPROC(sun4v_ldc_tx_set_qtail)
 
         /* %o0: channel
          * %o1: ra
@@ -485,14 +421,12 @@ sun4v_ldc_tx_set_qtail:
          *
          * returns %o0: status
          */
-        .globl  sun4v_ldc_rx_qconf
-        .type   sun4v_ldc_rx_qconf,#function
-sun4v_ldc_rx_qconf:
+ENTRY(sun4v_ldc_rx_qconf)
         mov     HV_FAST_LDC_RX_QCONF, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_ldc_rx_qconf, .-sun4v_ldc_rx_qconf
+ENDPROC(sun4v_ldc_rx_qconf)
 
         /* %o0: channel
          * %o1: pointer to unsigned long ra
@@ -500,9 +434,7 @@ sun4v_ldc_rx_qconf:
          *
          * returns %o0: status
          */
-        .globl  sun4v_ldc_rx_qinfo
-        .type   sun4v_ldc_rx_qinfo,#function
-sun4v_ldc_rx_qinfo:
+ENTRY(sun4v_ldc_rx_qinfo)
         mov     %o1, %g1
         mov     %o2, %g2
         mov     HV_FAST_LDC_RX_QINFO, %o5
@@ -511,7 +443,7 @@ sun4v_ldc_rx_qinfo:
         stx     %o2, [%g2]
         retl
          nop
-        .size   sun4v_ldc_rx_qinfo, .-sun4v_ldc_rx_qinfo
+ENDPROC(sun4v_ldc_rx_qinfo)
 
         /* %o0: channel
          * %o1: pointer to unsigned long head_off
@@ -520,9 +452,7 @@ sun4v_ldc_rx_qinfo:
          *
          * returns %o0: status
          */
-        .globl  sun4v_ldc_rx_get_state
-        .type   sun4v_ldc_rx_get_state,#function
-sun4v_ldc_rx_get_state:
+ENTRY(sun4v_ldc_rx_get_state)
         mov     %o1, %g1
         mov     %o2, %g2
         mov     %o3, %g3
@@ -533,21 +463,19 @@ sun4v_ldc_rx_get_state:
         stx     %o3, [%g3]
         retl
          nop
-        .size   sun4v_ldc_rx_get_state, .-sun4v_ldc_rx_get_state
+ENDPROC(sun4v_ldc_rx_get_state)
 
         /* %o0: channel
          * %o1: head_off
          *
          * returns %o0: status
          */
-        .globl  sun4v_ldc_rx_set_qhead
-        .type   sun4v_ldc_rx_set_qhead,#function
-sun4v_ldc_rx_set_qhead:
+ENTRY(sun4v_ldc_rx_set_qhead)
         mov     HV_FAST_LDC_RX_SET_QHEAD, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_ldc_rx_set_qhead, .-sun4v_ldc_rx_set_qhead
+ENDPROC(sun4v_ldc_rx_set_qhead)
 
         /* %o0: channel
          * %o1: ra
@@ -555,14 +483,12 @@ sun4v_ldc_rx_set_qhead:
          *
          * returns %o0: status
          */
-        .globl  sun4v_ldc_set_map_table
-        .type   sun4v_ldc_set_map_table,#function
-sun4v_ldc_set_map_table:
+ENTRY(sun4v_ldc_set_map_table)
         mov     HV_FAST_LDC_SET_MAP_TABLE, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_ldc_set_map_table, .-sun4v_ldc_set_map_table
+ENDPROC(sun4v_ldc_set_map_table)
 
         /* %o0: channel
          * %o1: pointer to unsigned long ra
@@ -570,9 +496,7 @@ sun4v_ldc_set_map_table:
          *
          * returns %o0: status
          */
-        .globl  sun4v_ldc_get_map_table
-        .type   sun4v_ldc_get_map_table,#function
-sun4v_ldc_get_map_table:
+ENTRY(sun4v_ldc_get_map_table)
         mov     %o1, %g1
         mov     %o2, %g2
         mov     HV_FAST_LDC_GET_MAP_TABLE, %o5
@@ -581,7 +505,7 @@ sun4v_ldc_get_map_table:
         stx     %o2, [%g2]
         retl
          nop
-        .size   sun4v_ldc_get_map_table, .-sun4v_ldc_get_map_table
+ENDPROC(sun4v_ldc_get_map_table)
 
         /* %o0: channel
          * %o1: dir_code
@@ -592,16 +516,14 @@ sun4v_ldc_get_map_table:
          *
          * returns %o0: status
          */
-        .globl  sun4v_ldc_copy
-        .type   sun4v_ldc_copy,#function
-sun4v_ldc_copy:
+ENTRY(sun4v_ldc_copy)
         mov     %o5, %g1
         mov     HV_FAST_LDC_COPY, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%g1]
         retl
          nop
-        .size   sun4v_ldc_copy, .-sun4v_ldc_copy
+ENDPROC(sun4v_ldc_copy)
 
         /* %o0: channel
          * %o1: cookie
@@ -610,9 +532,7 @@ sun4v_ldc_copy:
          *
          * returns %o0: status
          */
-        .globl  sun4v_ldc_mapin
-        .type   sun4v_ldc_mapin,#function
-sun4v_ldc_mapin:
+ENTRY(sun4v_ldc_mapin)
         mov     %o2, %g1
         mov     %o3, %g2
         mov     HV_FAST_LDC_MAPIN, %o5
@@ -621,20 +541,18 @@ sun4v_ldc_mapin:
         stx     %o2, [%g2]
         retl
          nop
-        .size   sun4v_ldc_mapin, .-sun4v_ldc_mapin
+ENDPROC(sun4v_ldc_mapin)
 
         /* %o0: ra
          *
          * returns %o0: status
          */
-        .globl  sun4v_ldc_unmap
-        .type   sun4v_ldc_unmap,#function
-sun4v_ldc_unmap:
+ENTRY(sun4v_ldc_unmap)
         mov     HV_FAST_LDC_UNMAP, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_ldc_unmap, .-sun4v_ldc_unmap
+ENDPROC(sun4v_ldc_unmap)
 
         /* %o0: channel
          * %o1: cookie
@@ -642,14 +560,12 @@ sun4v_ldc_unmap:
          *
          * returns %o0: status
          */
-        .globl  sun4v_ldc_revoke
-        .type   sun4v_ldc_revoke,#function
-sun4v_ldc_revoke:
+ENTRY(sun4v_ldc_revoke)
         mov     HV_FAST_LDC_REVOKE, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_ldc_revoke, .-sun4v_ldc_revoke
+ENDPROC(sun4v_ldc_revoke)
 
         /* %o0: device handle
          * %o1: device INO
@@ -657,16 +573,14 @@ sun4v_ldc_revoke:
          *
          * returns %o0: status
          */
-        .globl  sun4v_vintr_get_cookie
-        .type   sun4v_vintr_get_cookie,#function
-sun4v_vintr_get_cookie:
+ENTRY(sun4v_vintr_get_cookie)
         mov     %o2, %g1
         mov     HV_FAST_VINTR_GET_COOKIE, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%g1]
         retl
          nop
-        .size   sun4v_vintr_get_cookie, .-sun4v_vintr_get_cookie
+ENDPROC(sun4v_vintr_get_cookie)
 
         /* %o0: device handle
          * %o1: device INO
@@ -674,14 +588,12 @@ sun4v_vintr_get_cookie:
          *
          * returns %o0: status
          */
-        .globl  sun4v_vintr_set_cookie
-        .type   sun4v_vintr_set_cookie,#function
-sun4v_vintr_set_cookie:
+ENTRY(sun4v_vintr_set_cookie)
         mov     HV_FAST_VINTR_SET_COOKIE, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_vintr_set_cookie, .-sun4v_vintr_set_cookie
+ENDPROC(sun4v_vintr_set_cookie)
 
         /* %o0: device handle
          * %o1: device INO
@@ -689,16 +601,14 @@ sun4v_vintr_set_cookie:
          *
          * returns %o0: status
          */
-        .globl  sun4v_vintr_get_valid
-        .type   sun4v_vintr_get_valid,#function
-sun4v_vintr_get_valid:
+ENTRY(sun4v_vintr_get_valid)
         mov     %o2, %g1
         mov     HV_FAST_VINTR_GET_VALID, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%g1]
         retl
          nop
-        .size   sun4v_vintr_get_valid, .-sun4v_vintr_get_valid
+ENDPROC(sun4v_vintr_get_valid)
 
         /* %o0: device handle
          * %o1: device INO
@@ -706,14 +616,12 @@ sun4v_vintr_get_valid:
          *
          * returns %o0: status
          */
-        .globl  sun4v_vintr_set_valid
-        .type   sun4v_vintr_set_valid,#function
-sun4v_vintr_set_valid:
+ENTRY(sun4v_vintr_set_valid)
         mov     HV_FAST_VINTR_SET_VALID, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_vintr_set_valid, .-sun4v_vintr_set_valid
+ENDPROC(sun4v_vintr_set_valid)
 
         /* %o0: device handle
          * %o1: device INO
@@ -721,16 +629,14 @@ sun4v_vintr_set_valid:
          *
          * returns %o0: status
          */
-        .globl  sun4v_vintr_get_state
-        .type   sun4v_vintr_get_state,#function
-sun4v_vintr_get_state:
+ENTRY(sun4v_vintr_get_state)
         mov     %o2, %g1
         mov     HV_FAST_VINTR_GET_STATE, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%g1]
         retl
          nop
-        .size   sun4v_vintr_get_state, .-sun4v_vintr_get_state
+ENDPROC(sun4v_vintr_get_state)
 
         /* %o0: device handle
          * %o1: device INO
@@ -738,14 +644,12 @@ sun4v_vintr_get_state:
          *
          * returns %o0: status
          */
-        .globl  sun4v_vintr_set_state
-        .type   sun4v_vintr_set_state,#function
-sun4v_vintr_set_state:
+ENTRY(sun4v_vintr_set_state)
         mov     HV_FAST_VINTR_SET_STATE, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_vintr_set_state, .-sun4v_vintr_set_state
+ENDPROC(sun4v_vintr_set_state)
 
         /* %o0: device handle
          * %o1: device INO
@@ -753,16 +657,14 @@ sun4v_vintr_set_state:
          *
          * returns %o0: status
          */
-        .globl  sun4v_vintr_get_target
-        .type   sun4v_vintr_get_target,#function
-sun4v_vintr_get_target:
+ENTRY(sun4v_vintr_get_target)
         mov     %o2, %g1
         mov     HV_FAST_VINTR_GET_TARGET, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%g1]
         retl
          nop
-        .size   sun4v_vintr_get_target, .-sun4v_vintr_get_target
+ENDPROC(sun4v_vintr_get_target)
 
         /* %o0: device handle
          * %o1: device INO
@@ -770,14 +672,12 @@ sun4v_vintr_get_target:
          *
          * returns %o0: status
          */
-        .globl  sun4v_vintr_set_target
-        .type   sun4v_vintr_set_target,#function
-sun4v_vintr_set_target:
+ENTRY(sun4v_vintr_set_target)
         mov     HV_FAST_VINTR_SET_TARGET, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_vintr_set_target, .-sun4v_vintr_set_target
+ENDPROC(sun4v_vintr_set_target)
 
         /* %o0: NCS sub-function
          * %o1: sub-function arg real-address
@@ -785,18 +685,14 @@ sun4v_vintr_set_target:
          *
          * returns %o0: status
          */
-        .globl  sun4v_ncs_request
-        .type   sun4v_ncs_request,#function
-sun4v_ncs_request:
+ENTRY(sun4v_ncs_request)
         mov     HV_FAST_NCS_REQUEST, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_ncs_request, .-sun4v_ncs_request
+ENDPROC(sun4v_ncs_request)
 
-        .globl  sun4v_svc_send
-        .type   sun4v_svc_send,#function
-sun4v_svc_send:
+ENTRY(sun4v_svc_send)
         save    %sp, -192, %sp
         mov     %i0, %o0
         mov     %i1, %o1
@@ -806,11 +702,9 @@ sun4v_svc_send:
         stx     %o1, [%i3]
         ret
         restore
-        .size   sun4v_svc_send, .-sun4v_svc_send
+ENDPROC(sun4v_svc_send)
 
-        .globl  sun4v_svc_recv
-        .type   sun4v_svc_recv,#function
-sun4v_svc_recv:
+ENTRY(sun4v_svc_recv)
         save    %sp, -192, %sp
         mov     %i0, %o0
         mov     %i1, %o1
@@ -820,62 +714,50 @@ sun4v_svc_recv:
         stx     %o1, [%i3]
         ret
         restore
-        .size   sun4v_svc_recv, .-sun4v_svc_recv
+ENDPROC(sun4v_svc_recv)
 
-        .globl  sun4v_svc_getstatus
-        .type   sun4v_svc_getstatus,#function
-sun4v_svc_getstatus:
+ENTRY(sun4v_svc_getstatus)
         mov     HV_FAST_SVC_GETSTATUS, %o5
         mov     %o1, %o4
         ta      HV_FAST_TRAP
         stx     %o1, [%o4]
         retl
          nop
-        .size   sun4v_svc_getstatus, .-sun4v_svc_getstatus
+ENDPROC(sun4v_svc_getstatus)
 
-        .globl  sun4v_svc_setstatus
-        .type   sun4v_svc_setstatus,#function
-sun4v_svc_setstatus:
+ENTRY(sun4v_svc_setstatus)
         mov     HV_FAST_SVC_SETSTATUS, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_svc_setstatus, .-sun4v_svc_setstatus
+ENDPROC(sun4v_svc_setstatus)
 
-        .globl  sun4v_svc_clrstatus
-        .type   sun4v_svc_clrstatus,#function
-sun4v_svc_clrstatus:
+ENTRY(sun4v_svc_clrstatus)
         mov     HV_FAST_SVC_CLRSTATUS, %o5
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_svc_clrstatus, .-sun4v_svc_clrstatus
+ENDPROC(sun4v_svc_clrstatus)
 
-        .globl  sun4v_mmustat_conf
-        .type   sun4v_mmustat_conf,#function
-sun4v_mmustat_conf:
+ENTRY(sun4v_mmustat_conf)
         mov     %o1, %o4
         mov     HV_FAST_MMUSTAT_CONF, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o4]
         retl
          nop
-        .size   sun4v_mmustat_conf, .-sun4v_mmustat_conf
+ENDPROC(sun4v_mmustat_conf)
 
-        .globl  sun4v_mmustat_info
-        .type   sun4v_mmustat_info,#function
-sun4v_mmustat_info:
+ENTRY(sun4v_mmustat_info)
         mov     %o0, %o4
         mov     HV_FAST_MMUSTAT_INFO, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o4]
         retl
          nop
-        .size   sun4v_mmustat_info, .-sun4v_mmustat_info
+ENDPROC(sun4v_mmustat_info)
 
-        .globl  sun4v_mmu_demap_all
-        .type   sun4v_mmu_demap_all,#function
-sun4v_mmu_demap_all:
+ENTRY(sun4v_mmu_demap_all)
         clr     %o0
         clr     %o1
         mov     HV_MMU_ALL, %o2
@@ -883,4 +765,4 @@ sun4v_mmu_demap_all:
         ta      HV_FAST_TRAP
         retl
          nop
-        .size   sun4v_mmu_demap_all, .-sun4v_mmu_demap_all
+ENDPROC(sun4v_mmu_demap_all)
diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index 7495bc77468..52fc836f464 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -29,7 +29,6 @@
 #include <asm/system.h>
 #include <asm/irq.h>
 #include <asm/io.h>
-#include <asm/sbus.h>
 #include <asm/iommu.h>
 #include <asm/upa.h>
 #include <asm/oplib.h>
diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c
index 100ebd52749..0f616ae3246 100644
--- a/arch/sparc64/kernel/of_device.c
+++ b/arch/sparc64/kernel/of_device.c
@@ -55,15 +55,38 @@ struct of_device *of_find_device_by_node(struct device_node *dp)
 }
 EXPORT_SYMBOL(of_find_device_by_node);
 
-#ifdef CONFIG_PCI
-struct bus_type ebus_bus_type;
-EXPORT_SYMBOL(ebus_bus_type);
-#endif
+unsigned int irq_of_parse_and_map(struct device_node *node, int index)
+{
+        struct of_device *op = of_find_device_by_node(node);
+
+        if (!op || index >= op->num_irqs)
+                return 0;
+
+        return op->irqs[index];
+}
+EXPORT_SYMBOL(irq_of_parse_and_map);
+
+/* Take the archdata values for IOMMU, STC, and HOSTDATA found in
+ * BUS and propagate to all child of_device objects.
+ */
+void of_propagate_archdata(struct of_device *bus)
+{
+        struct dev_archdata *bus_sd = &bus->dev.archdata;
+        struct device_node *bus_dp = bus->node;
+        struct device_node *dp;
 
-#ifdef CONFIG_SBUS
-struct bus_type sbus_bus_type;
-EXPORT_SYMBOL(sbus_bus_type);
-#endif
+        for (dp = bus_dp->child; dp; dp = dp->sibling) {
+                struct of_device *op = of_find_device_by_node(dp);
+
+                op->dev.archdata.iommu = bus_sd->iommu;
+                op->dev.archdata.stc = bus_sd->stc;
+                op->dev.archdata.host_controller = bus_sd->host_controller;
+                op->dev.archdata.numa_node = bus_sd->numa_node;
+
+                if (dp->child)
+                        of_propagate_archdata(op);
+        }
+}
 
 struct bus_type of_platform_bus_type;
 EXPORT_SYMBOL(of_platform_bus_type);
@@ -378,8 +401,7 @@ static int __init build_one_resource(struct device_node *parent,
                                      int na, int ns, int pna)
 {
         const u32 *ranges;
-        unsigned int rlen;
-        int rone;
+        int rone, rlen;
 
         ranges = of_get_property(parent, "ranges", &rlen);
         if (ranges == NULL || rlen == 0) {
@@ -421,8 +443,17 @@ static int __init use_1to1_mapping(struct device_node *pp)
 
         /* If the parent is the dma node of an ISA bus, pass
          * the translation up to the root.
+         *
+         * Some SBUS devices use intermediate nodes to express
+         * hierarchy within the device itself.  These aren't
+         * real bus nodes, and don't have a 'ranges' property.
+         * But, we should still pass the translation work up
+         * to the SBUS itself.
          */
-        if (!strcmp(pp->name, "dma"))
+        if (!strcmp(pp->name, "dma") ||
+            !strcmp(pp->name, "espdma") ||
+            !strcmp(pp->name, "ledma") ||
+            !strcmp(pp->name, "lebuffer"))
                 return 0;
 
         /* Similarly for all PCI bridges, if we get this far
@@ -844,15 +875,6 @@ static int __init of_bus_driver_init(void)
         int err;
 
         err = of_bus_type_init(&of_platform_bus_type, "of");
-#ifdef CONFIG_PCI
-        if (!err)
-                err = of_bus_type_init(&ebus_bus_type, "ebus");
-#endif
-#ifdef CONFIG_SBUS
-        if (!err)
-                err = of_bus_type_init(&sbus_bus_type, "sbus");
-#endif
-
         if (!err)
                 scan_of_devices();
 
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index 80dad76f8b8..242ac1ccae7 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -18,32 +18,17 @@
 #include <linux/msi.h>
 #include <linux/irq.h>
 #include <linux/init.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/irq.h>
-#include <asm/ebus.h>
 #include <asm/prom.h>
 #include <asm/apb.h>
 
 #include "pci_impl.h"
 
-#ifndef CONFIG_PCI
-/* A "nop" PCI implementation. */
-asmlinkage int sys_pciconfig_read(unsigned long bus, unsigned long dfn,
-                                  unsigned long off, unsigned long len,
-                                  unsigned char *buf)
-{
-        return 0;
-}
-asmlinkage int sys_pciconfig_write(unsigned long bus, unsigned long dfn,
-                                   unsigned long off, unsigned long len,
-                                   unsigned char *buf)
-{
-        return 0;
-}
-#else
-
 /* List of all PCI controllers found in the system. */
 struct pci_pbm_info *pci_pbm_root = NULL;
 
@@ -179,97 +164,6 @@ void pci_config_write32(u32 *addr, u32 val)
         spin_unlock_irqrestore(&pci_poke_lock, flags);
 }
 
-/* Probe for all PCI controllers in the system. */
-extern void sabre_init(struct device_node *, const char *);
-extern void psycho_init(struct device_node *, const char *);
-extern void schizo_init(struct device_node *, const char *);
-extern void schizo_plus_init(struct device_node *, const char *);
-extern void tomatillo_init(struct device_node *, const char *);
-extern void sun4v_pci_init(struct device_node *, const char *);
-extern void fire_pci_init(struct device_node *, const char *);
-
-static struct {
-        char *model_name;
-        void (*init)(struct device_node *, const char *);
-} pci_controller_table[] __initdata = {
-        { "SUNW,sabre", sabre_init },
-        { "pci108e,a000", sabre_init },
-        { "pci108e,a001", sabre_init },
-        { "SUNW,psycho", psycho_init },
-        { "pci108e,8000", psycho_init },
-        { "SUNW,schizo", schizo_init },
-        { "pci108e,8001", schizo_init },
-        { "SUNW,schizo+", schizo_plus_init },
-        { "pci108e,8002", schizo_plus_init },
-        { "SUNW,tomatillo", tomatillo_init },
-        { "pci108e,a801", tomatillo_init },
-        { "SUNW,sun4v-pci", sun4v_pci_init },
-        { "pciex108e,80f0", fire_pci_init },
-};
-#define PCI_NUM_CONTROLLER_TYPES        ARRAY_SIZE(pci_controller_table)
-
-static int __init pci_controller_init(const char *model_name, int namelen, struct device_node *dp)
-{
-        int i;
-
-        for (i = 0; i < PCI_NUM_CONTROLLER_TYPES; i++) {
-                if (!strncmp(model_name,
-                             pci_controller_table[i].model_name,
-                             namelen)) {
-                        pci_controller_table[i].init(dp, model_name);
-                        return 1;
-                }
-        }
-
-        return 0;
-}
-
-static int __init pci_controller_scan(int (*handler)(const char *, int, struct device_node *))
-{
-        struct device_node *dp;
-        int count = 0;
-
-        for_each_node_by_name(dp, "pci") {
-                struct property *prop;
-                int len;
-
-                prop = of_find_property(dp, "model", &len);
-                if (!prop)
-                        prop = of_find_property(dp, "compatible", &len);
-
-                if (prop) {
-                        const char *model = prop->value;
-                        int item_len = 0;
-
-                        /* Our value may be a multi-valued string in the
-                         * case of some compatible properties. For sanity,
-                         * only try the first one.
-                         */
-                        while (model[item_len] && len) {
-                                len--;
-                                item_len++;
-                        }
-
-                        if (handler(model, item_len, dp))
-                                count++;
-                }
-        }
-
-        return count;
-}
-
-/* Find each controller in the system, attach and initialize
- * software state structure for each and link into the
- * pci_pbm_root.  Setup the controller enough such
- * that bus scanning can be done.
- */
-static void __init pci_controller_probe(void)
-{
-        printk("PCI: Probing for controllers.\n");
-
-        pci_controller_scan(pci_controller_init);
-}
-
 static int ofpci_verbose;
 
 static int __init ofpci_debug(char *str)
@@ -348,11 +242,12 @@ static void pci_parse_of_addrs(struct of_device *op,
         }
 }
 
-struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
-                                  struct device_node *node,
-                                  struct pci_bus *bus, int devfn)
+static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
+                                         struct device_node *node,
+                                         struct pci_bus *bus, int devfn)
 {
         struct dev_archdata *sd;
+        struct of_device *op;
         struct pci_dev *dev;
         const char *type;
         u32 class;
@@ -366,14 +261,17 @@ struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
         sd->stc = &pbm->stc;
         sd->host_controller = pbm;
         sd->prom_node = node;
-        sd->op = of_find_device_by_node(node);
+        sd->op = op = of_find_device_by_node(node);
         sd->numa_node = pbm->numa_node;
 
-        sd = &sd->op->dev.archdata;
+        sd = &op->dev.archdata;
         sd->iommu = pbm->iommu;
         sd->stc = &pbm->stc;
         sd->numa_node = pbm->numa_node;
 
+        if (!strcmp(node->name, "ebus"))
+                of_propagate_archdata(op);
+
         type = of_get_property(node, "device_type", NULL);
         if (type == NULL)
                 type = "";
@@ -775,15 +673,15 @@ static void __devinit pci_bus_register_of_sysfs(struct pci_bus *bus)
                 pci_bus_register_of_sysfs(child_bus);
 }
 
-struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm)
+struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm,
+                                            struct device *parent)
 {
-        struct device_node *node = pbm->prom_node;
+        struct device_node *node = pbm->op->node;
         struct pci_bus *bus;
 
         printk("PCI: Scanning PBM %s\n", node->full_name);
 
-        /* XXX parent device? XXX */
-        bus = pci_create_bus(NULL, pbm->pci_first_busno, pbm->pci_ops, pbm);
+        bus = pci_create_bus(parent, pbm->pci_first_busno, pbm->pci_ops, pbm);
         if (!bus) {
                 printk(KERN_ERR "Failed to create bus for %s\n",
                        node->full_name);
@@ -802,32 +700,6 @@ struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm)
         return bus;
 }
 
-static void __init pci_scan_each_controller_bus(void)
-{
-        struct pci_pbm_info *pbm;
-
-        for (pbm = pci_pbm_root; pbm; pbm = pbm->next)
-                pbm->scan_bus(pbm);
-}
-
-extern void power_init(void);
-
-static int __init pcibios_init(void)
-{
-        pci_controller_probe();
-        if (pci_pbm_root == NULL)
-                return 0;
-
-        pci_scan_each_controller_bus();
-
-        ebus_init();
-        power_init();
-
-        return 0;
-}
-
-subsys_initcall(pcibios_init);
-
 void __devinit pcibios_fixup_bus(struct pci_bus *pbus)
 {
         struct pci_pbm_info *pbm = pbus->sysdata;
@@ -1105,14 +977,14 @@ int pcibus_to_node(struct pci_bus *pbus)
 EXPORT_SYMBOL(pcibus_to_node);
 #endif
 
-/* Return the domain nuber for this pci bus */
+/* Return the domain number for this pci bus */
 
 int pci_domain_nr(struct pci_bus *pbus)
 {
         struct pci_pbm_info *pbm = pbus->sysdata;
         int ret;
 
-        if (pbm == NULL || pbm->parent == NULL) {
+        if (!pbm) {
                 ret = -ENXIO;
         } else {
                 ret = pbm->index;
@@ -1126,7 +998,7 @@ EXPORT_SYMBOL(pci_domain_nr);
 int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
 {
         struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
-        int virt_irq;
+        unsigned int virt_irq;
 
         if (!pbm->setup_msi_irq)
                 return -EINVAL;
@@ -1140,10 +1012,8 @@ void arch_teardown_msi_irq(unsigned int virt_irq)
         struct pci_dev *pdev = entry->dev;
         struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
 
-        if (!pbm->teardown_msi_irq)
-                return;
-
-        return pbm->teardown_msi_irq(virt_irq, pdev);
+        if (pbm->teardown_msi_irq)
+                pbm->teardown_msi_irq(virt_irq, pdev);
 }
 #endif /* !(CONFIG_PCI_MSI) */
 
@@ -1215,5 +1085,3 @@ void pci_resource_to_user(const struct pci_dev *pdev, int bar,
         *start = rp->start - offset;
         *end = rp->end - offset;
 }
-
-#endif /* !(CONFIG_PCI) */
diff --git a/arch/sparc64/kernel/pci_common.c b/arch/sparc64/kernel/pci_common.c
index 09a5ec200c6..23b88082d0b 100644
--- a/arch/sparc64/kernel/pci_common.c
+++ b/arch/sparc64/kernel/pci_common.c
@@ -314,12 +314,12 @@ struct pci_ops sun4v_pci_ops = {
 
 void pci_get_pbm_props(struct pci_pbm_info *pbm)
 {
-        const u32 *val = of_get_property(pbm->prom_node, "bus-range", NULL);
+        const u32 *val = of_get_property(pbm->op->node, "bus-range", NULL);
 
         pbm->pci_first_busno = val[0];
         pbm->pci_last_busno = val[1];
 
-        val = of_get_property(pbm->prom_node, "ino-bitmap", NULL);
+        val = of_get_property(pbm->op->node, "ino-bitmap", NULL);
         if (val) {
                 pbm->ino_bitmap = (((u64)val[1] << 32UL) |
                                    ((u64)val[0] <<  0UL));
@@ -365,7 +365,7 @@ static void pci_register_legacy_regions(struct resource *io_res,
 
 static void pci_register_iommu_region(struct pci_pbm_info *pbm)
 {
-        const u32 *vdma = of_get_property(pbm->prom_node, "virtual-dma", NULL);
+        const u32 *vdma = of_get_property(pbm->op->node, "virtual-dma", NULL);
 
         if (vdma) {
                 struct resource *rp = kmalloc(sizeof(*rp), GFP_KERNEL);
@@ -389,7 +389,7 @@ void pci_determine_mem_io_space(struct pci_pbm_info *pbm)
         int num_pbm_ranges;
 
         saw_mem = saw_io = 0;
-        pbm_ranges = of_get_property(pbm->prom_node, "ranges", &i);
+        pbm_ranges = of_get_property(pbm->op->node, "ranges", &i);
         if (!pbm_ranges) {
                 prom_printf("PCI: Fatal error, missing PBM ranges property "
                             " for %s\n",
diff --git a/arch/sparc64/kernel/pci_fire.c b/arch/sparc64/kernel/pci_fire.c
index d23bb6f53cd..9462b68f489 100644
--- a/arch/sparc64/kernel/pci_fire.c
+++ b/arch/sparc64/kernel/pci_fire.c
@@ -8,34 +8,16 @@
 #include <linux/init.h>
 #include <linux/msi.h>
 #include <linux/irq.h>
+#include <linux/of_device.h>
 
-#include <asm/oplib.h>
 #include <asm/prom.h>
 #include <asm/irq.h>
+#include <asm/upa.h>
 
 #include "pci_impl.h"
 
-#define fire_read(__reg) \
-({      u64 __ret; \
-        __asm__ __volatile__("ldxa [%1] %2, %0" \
-                             : "=r" (__ret) \
-                             : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \
-                             : "memory"); \
-        __ret; \
-})
-#define fire_write(__reg, __val) \
-        __asm__ __volatile__("stxa %0, [%1] %2" \
-                             : /* no outputs */ \
-                             : "r" (__val), "r" (__reg), \
-                               "i" (ASI_PHYS_BYPASS_EC_E) \
-                             : "memory")
-
-static void __init pci_fire_scan_bus(struct pci_pbm_info *pbm)
-{
-        pbm->pci_bus = pci_scan_one_pbm(pbm);
-
-        /* XXX register error interrupt handlers XXX */
-}
+#define DRIVER_NAME     "fire"
+#define PFX             DRIVER_NAME ": "
 
 #define FIRE_IOMMU_CONTROL      0x40000UL
 #define FIRE_IOMMU_TSBBASE      0x40008UL
@@ -69,21 +51,21 @@ static int pci_fire_pbm_iommu_init(struct pci_pbm_info *pbm)
         /*
          * Invalidate TLB Entries.
          */
-        fire_write(iommu->iommu_flushinv, ~(u64)0);
+        upa_writeq(~(u64)0, iommu->iommu_flushinv);
 
         err = iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask,
                                pbm->numa_node);
         if (err)
                 return err;
 
-        fire_write(iommu->iommu_tsbbase, __pa(iommu->page_table) | 0x7UL);
+        upa_writeq(__pa(iommu->page_table) | 0x7UL, iommu->iommu_tsbbase);
 
-        control = fire_read(iommu->iommu_control);
+        control = upa_readq(iommu->iommu_control);
         control |= (0x00000400 /* TSB cache snoop enable */     |
                     0x00000300 /* Cache mode */                 |
                     0x00000002 /* Bypass enable */              |
                     0x00000001 /* Translation enable */);
-        fire_write(iommu->iommu_control, control);
+        upa_writeq(control, iommu->iommu_control);
 
         return 0;
 }
@@ -165,7 +147,7 @@ struct pci_msiq_entry {
 static int pci_fire_get_head(struct pci_pbm_info *pbm, unsigned long msiqid,
                              unsigned long *head)
 {
-        *head = fire_read(pbm->pbm_regs + EVENT_QUEUE_HEAD(msiqid));
+        *head = upa_readq(pbm->pbm_regs + EVENT_QUEUE_HEAD(msiqid));
         return 0;
 }
 
@@ -191,8 +173,7 @@ static int pci_fire_dequeue_msi(struct pci_pbm_info *pbm, unsigned long msiqid,
         *msi = msi_num = ((ep->word0 & MSIQ_WORD0_DATA0) >>
                           MSIQ_WORD0_DATA0_SHIFT);
 
-        fire_write(pbm->pbm_regs + MSI_CLEAR(msi_num),
-                   MSI_CLEAR_EQWR_N);
+        upa_writeq(MSI_CLEAR_EQWR_N, pbm->pbm_regs + MSI_CLEAR(msi_num));
 
         /* Clear the entry.  */
         ep->word0 &= ~MSIQ_WORD0_FMT_TYPE;
@@ -208,7 +189,7 @@ static int pci_fire_dequeue_msi(struct pci_pbm_info *pbm, unsigned long msiqid,
 static int pci_fire_set_head(struct pci_pbm_info *pbm, unsigned long msiqid,
                              unsigned long head)
 {
-        fire_write(pbm->pbm_regs + EVENT_QUEUE_HEAD(msiqid), head);
+        upa_writeq(head, pbm->pbm_regs + EVENT_QUEUE_HEAD(msiqid));
         return 0;
 }
 
@@ -217,17 +198,16 @@ static int pci_fire_msi_setup(struct pci_pbm_info *pbm, unsigned long msiqid,
 {
         u64 val;
 
-        val = fire_read(pbm->pbm_regs + MSI_MAP(msi));
+        val = upa_readq(pbm->pbm_regs + MSI_MAP(msi));
         val &= ~(MSI_MAP_EQNUM);
         val |= msiqid;
-        fire_write(pbm->pbm_regs + MSI_MAP(msi), val);
+        upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi));
 
-        fire_write(pbm->pbm_regs + MSI_CLEAR(msi),
-                   MSI_CLEAR_EQWR_N);
+        upa_writeq(MSI_CLEAR_EQWR_N, pbm->pbm_regs + MSI_CLEAR(msi));
 
-        val = fire_read(pbm->pbm_regs + MSI_MAP(msi));
+        val = upa_readq(pbm->pbm_regs + MSI_MAP(msi));
         val |= MSI_MAP_VALID;
-        fire_write(pbm->pbm_regs + MSI_MAP(msi), val);
+        upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi));
 
         return 0;
 }
@@ -237,12 +217,12 @@ static int pci_fire_msi_teardown(struct pci_pbm_info *pbm, unsigned long msi)
         unsigned long msiqid;
         u64 val;
 
-        val = fire_read(pbm->pbm_regs + MSI_MAP(msi));
+        val = upa_readq(pbm->pbm_regs + MSI_MAP(msi));
         msiqid = (val & MSI_MAP_EQNUM);
 
         val &= ~MSI_MAP_VALID;
 
-        fire_write(pbm->pbm_regs + MSI_MAP(msi), val);
+        upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi));
 
         return 0;
 }
@@ -261,22 +241,19 @@ static int pci_fire_msiq_alloc(struct pci_pbm_info *pbm)
         memset((char *)pages, 0, PAGE_SIZE << order);
         pbm->msi_queues = (void *) pages;
 
-        fire_write(pbm->pbm_regs + EVENT_QUEUE_BASE_ADDR_REG,
-                   (EVENT_QUEUE_BASE_ADDR_ALL_ONES |
-                    __pa(pbm->msi_queues)));
+        upa_writeq((EVENT_QUEUE_BASE_ADDR_ALL_ONES |
+                    __pa(pbm->msi_queues)),
+                   pbm->pbm_regs + EVENT_QUEUE_BASE_ADDR_REG);
 
-        fire_write(pbm->pbm_regs + IMONDO_DATA0,
-                   pbm->portid << 6);
-        fire_write(pbm->pbm_regs + IMONDO_DATA1, 0);
+        upa_writeq(pbm->portid << 6, pbm->pbm_regs + IMONDO_DATA0);
+        upa_writeq(0, pbm->pbm_regs + IMONDO_DATA1);
 
-        fire_write(pbm->pbm_regs + MSI_32BIT_ADDR,
-                   pbm->msi32_start);
-        fire_write(pbm->pbm_regs + MSI_64BIT_ADDR,
-                   pbm->msi64_start);
+        upa_writeq(pbm->msi32_start, pbm->pbm_regs + MSI_32BIT_ADDR);
+        upa_writeq(pbm->msi64_start, pbm->pbm_regs + MSI_64BIT_ADDR);
 
         for (i = 0; i < pbm->msiq_num; i++) {
-                fire_write(pbm->pbm_regs + EVENT_QUEUE_HEAD(i), 0);
-                fire_write(pbm->pbm_regs + EVENT_QUEUE_TAIL(i), 0);
+                upa_writeq(0, pbm->pbm_regs + EVENT_QUEUE_HEAD(i));
+                upa_writeq(0, pbm->pbm_regs + EVENT_QUEUE_TAIL(i));
         }
 
         return 0;
@@ -310,9 +287,9 @@ static int pci_fire_msiq_build_irq(struct pci_pbm_info *pbm,
         /* XXX iterate amongst the 4 IRQ controllers XXX */
         int_ctrlr = (1UL << 6);
 
-        val = fire_read(imap_reg);
+        val = upa_readq(imap_reg);
         val |= (1UL << 63) | int_ctrlr;
-        fire_write(imap_reg, val);
+        upa_writeq(val, imap_reg);
 
         fixup = ((pbm->portid << 6) | devino) - int_ctrlr;
 
@@ -320,9 +297,8 @@ static int pci_fire_msiq_build_irq(struct pci_pbm_info *pbm,
         if (!virt_irq)
                 return -ENOMEM;
 
-        fire_write(pbm->pbm_regs +
-                   EVENT_QUEUE_CONTROL_SET(msiqid),
-                   EVENT_QUEUE_CONTROL_SET_EN);
+        upa_writeq(EVENT_QUEUE_CONTROL_SET_EN,
+                   pbm->pbm_regs + EVENT_QUEUE_CONTROL_SET(msiqid));
 
         return virt_irq;
 }
@@ -390,77 +366,65 @@ static void pci_fire_hw_init(struct pci_pbm_info *pbm)
 {
         u64 val;
 
-        fire_write(pbm->controller_regs + FIRE_PARITY_CONTROL,
-                   FIRE_PARITY_ENAB);
+        upa_writeq(FIRE_PARITY_ENAB,
+                   pbm->controller_regs + FIRE_PARITY_CONTROL);
 
-        fire_write(pbm->controller_regs + FIRE_FATAL_RESET_CTL,
-                   (FIRE_FATAL_RESET_SPARE |
+        upa_writeq((FIRE_FATAL_RESET_SPARE |
                     FIRE_FATAL_RESET_MB |
                     FIRE_FATAL_RESET_CPE |
                     FIRE_FATAL_RESET_APE |
                     FIRE_FATAL_RESET_PIO |
                     FIRE_FATAL_RESET_JW |
                     FIRE_FATAL_RESET_JI |
-                    FIRE_FATAL_RESET_JR));
+                    FIRE_FATAL_RESET_JR),
+                   pbm->controller_regs + FIRE_FATAL_RESET_CTL);
 
-        fire_write(pbm->controller_regs + FIRE_CORE_INTR_ENABLE, ~(u64)0);
+        upa_writeq(~(u64)0, pbm->controller_regs + FIRE_CORE_INTR_ENABLE);
 
-        val = fire_read(pbm->pbm_regs + FIRE_TLU_CTRL);
+        val = upa_readq(pbm->pbm_regs + FIRE_TLU_CTRL);
         val |= (FIRE_TLU_CTRL_TIM |
                 FIRE_TLU_CTRL_QDET |
                 FIRE_TLU_CTRL_CFG);
-        fire_write(pbm->pbm_regs + FIRE_TLU_CTRL, val);
-        fire_write(pbm->pbm_regs + FIRE_TLU_DEV_CTRL, 0);
-        fire_write(pbm->pbm_regs + FIRE_TLU_LINK_CTRL,
-                   FIRE_TLU_LINK_CTRL_CLK);
-
-        fire_write(pbm->pbm_regs + FIRE_LPU_RESET, 0);
-        fire_write(pbm->pbm_regs + FIRE_LPU_LLCFG,
-                   FIRE_LPU_LLCFG_VC0);
-        fire_write(pbm->pbm_regs + FIRE_LPU_FCTRL_UCTRL,
-                   (FIRE_LPU_FCTRL_UCTRL_N |
-                    FIRE_LPU_FCTRL_UCTRL_P));
-        fire_write(pbm->pbm_regs + FIRE_LPU_TXL_FIFOP,
-                   ((0xffff << 16) | (0x0000 << 0)));
-        fire_write(pbm->pbm_regs + FIRE_LPU_LTSSM_CFG2, 3000000);
-        fire_write(pbm->pbm_regs + FIRE_LPU_LTSSM_CFG3, 500000);
-        fire_write(pbm->pbm_regs + FIRE_LPU_LTSSM_CFG4,
-                   (2 << 16) | (140 << 8));
-        fire_write(pbm->pbm_regs + FIRE_LPU_LTSSM_CFG5, 0);
-
-        fire_write(pbm->pbm_regs + FIRE_DMC_IENAB, ~(u64)0);
-        fire_write(pbm->pbm_regs + FIRE_DMC_DBG_SEL_A, 0);
-        fire_write(pbm->pbm_regs + FIRE_DMC_DBG_SEL_B, 0);
-
-        fire_write(pbm->pbm_regs + FIRE_PEC_IENAB, ~(u64)0);
+        upa_writeq(val, pbm->pbm_regs + FIRE_TLU_CTRL);
+        upa_writeq(0, pbm->pbm_regs + FIRE_TLU_DEV_CTRL);
+        upa_writeq(FIRE_TLU_LINK_CTRL_CLK,
+                   pbm->pbm_regs + FIRE_TLU_LINK_CTRL);
+
+        upa_writeq(0, pbm->pbm_regs + FIRE_LPU_RESET);
+        upa_writeq(FIRE_LPU_LLCFG_VC0, pbm->pbm_regs + FIRE_LPU_LLCFG);
+        upa_writeq((FIRE_LPU_FCTRL_UCTRL_N | FIRE_LPU_FCTRL_UCTRL_P),
+                   pbm->pbm_regs + FIRE_LPU_FCTRL_UCTRL);
+        upa_writeq(((0xffff << 16) | (0x0000 << 0)),
+                   pbm->pbm_regs + FIRE_LPU_TXL_FIFOP);
+        upa_writeq(3000000, pbm->pbm_regs + FIRE_LPU_LTSSM_CFG2);
+        upa_writeq(500000, pbm->pbm_regs + FIRE_LPU_LTSSM_CFG3);
+        upa_writeq((2 << 16) | (140 << 8),
+                   pbm->pbm_regs + FIRE_LPU_LTSSM_CFG4);
+        upa_writeq(0, pbm->pbm_regs + FIRE_LPU_LTSSM_CFG5);
+
+        upa_writeq(~(u64)0, pbm->pbm_regs + FIRE_DMC_IENAB);
+        upa_writeq(0, pbm->pbm_regs + FIRE_DMC_DBG_SEL_A);
+        upa_writeq(0, pbm->pbm_regs + FIRE_DMC_DBG_SEL_B);
+
+        upa_writeq(~(u64)0, pbm->pbm_regs + FIRE_PEC_IENAB);
 }
 
-static int __init pci_fire_pbm_init(struct pci_controller_info *p,
-                                    struct device_node *dp, u32 portid)
+static int __init pci_fire_pbm_init(struct pci_pbm_info *pbm,
+                                    struct of_device *op, u32 portid)
 {
         const struct linux_prom64_registers *regs;
-        struct pci_pbm_info *pbm;
+        struct device_node *dp = op->node;
         int err;
 
-        if ((portid & 1) == 0)
-                pbm = &p->pbm_A;
-        else
-                pbm = &p->pbm_B;
-
-        pbm->next = pci_pbm_root;
-        pci_pbm_root = pbm;
-
         pbm->numa_node = -1;
 
-        pbm->scan_bus = pci_fire_scan_bus;
         pbm->pci_ops = &sun4u_pci_ops;
         pbm->config_space_reg_bits = 12;
 
         pbm->index = pci_num_pbms++;
 
         pbm->portid = portid;
-        pbm->parent = p;
-        pbm->prom_node = dp;
+        pbm->op = op;
         pbm->name = dp->full_name;
 
         regs = of_get_property(dp, "reg", NULL);
@@ -481,53 +445,77 @@ static int __init pci_fire_pbm_init(struct pci_controller_info *p,
 
         pci_fire_msi_init(pbm);
 
-        return 0;
-}
+        pbm->pci_bus = pci_scan_one_pbm(pbm, &op->dev);
+
+        /* XXX register error interrupt handlers XXX */
+
+        pbm->next = pci_pbm_root;
+        pci_pbm_root = pbm;
 
-static inline int portid_compare(u32 x, u32 y)
-{
-        if (x == (y ^ 1))
-                return 1;
         return 0;
 }
 
-void __init fire_pci_init(struct device_node *dp, const char *model_name)
+static int __devinit fire_probe(struct of_device *op,
+                                const struct of_device_id *match)
 {
-        struct pci_controller_info *p;
-        u32 portid = of_getintprop_default(dp, "portid", 0xff);
-        struct iommu *iommu;
+        struct device_node *dp = op->node;
         struct pci_pbm_info *pbm;
+        struct iommu *iommu;
+        u32 portid;
+        int err;
 
-        for (pbm = pci_pbm_root; pbm; pbm = pbm->next) {
-                if (portid_compare(pbm->portid, portid)) {
-                        if (pci_fire_pbm_init(pbm->parent, dp, portid))
-                                goto fatal_memory_error;
-                        return;
-                }
+        portid = of_getintprop_default(dp, "portid", 0xff);
+
+        err = -ENOMEM;
+        pbm = kzalloc(sizeof(*pbm), GFP_KERNEL);
+        if (!pbm) {
+                printk(KERN_ERR PFX "Cannot allocate pci_pbminfo.\n");
+                goto out_err;
         }
 
-        p = kzalloc(sizeof(struct pci_controller_info), GFP_ATOMIC);
-        if (!p)
-                goto fatal_memory_error;
+        iommu = kzalloc(sizeof(struct iommu), GFP_KERNEL);
+        if (!iommu) {
+                printk(KERN_ERR PFX "Cannot allocate PBM iommu.\n");
+                goto out_free_controller;
+        }
 
-        iommu = kzalloc(sizeof(struct iommu), GFP_ATOMIC);
-        if (!iommu)
-                goto fatal_memory_error;
+        pbm->iommu = iommu;
 
-        p->pbm_A.iommu = iommu;
+        err = pci_fire_pbm_init(pbm, op, portid);
+        if (err)
+                goto out_free_iommu;
 
-        iommu = kzalloc(sizeof(struct iommu), GFP_ATOMIC);
-        if (!iommu)
-                goto fatal_memory_error;
+        dev_set_drvdata(&op->dev, pbm);
 
-        p->pbm_B.iommu = iommu;
+        return 0;
 
-        if (pci_fire_pbm_init(p, dp, portid))
-                goto fatal_memory_error;
+out_free_iommu:
+        kfree(pbm->iommu);
+                        
+out_free_controller:
+        kfree(pbm);
 
-        return;
+out_err:
+        return err;
+}
+
+static struct of_device_id __initdata fire_match[] = {
+        {
+                .name = "pci",
+                .compatible = "pciex108e,80f0",
+        },
+        {},
+};
 
-fatal_memory_error:
-        prom_printf("PCI_FIRE: Fatal memory allocation error.\n");
-        prom_halt();
+static struct of_platform_driver fire_driver = {
+        .name           = DRIVER_NAME,
+        .match_table    = fire_match,
+        .probe          = fire_probe,
+};
+
+static int __init fire_init(void)
+{
+        return of_register_driver(&fire_driver, &of_bus_type);
 }
+
+subsys_initcall(fire_init);
diff --git a/arch/sparc64/kernel/pci_impl.h b/arch/sparc64/kernel/pci_impl.h
index c385d126be1..03186824327 100644
--- a/arch/sparc64/kernel/pci_impl.h
+++ b/arch/sparc64/kernel/pci_impl.h
@@ -10,6 +10,7 @@
 #include <linux/spinlock.h>
 #include <linux/pci.h>
 #include <linux/msi.h>
+#include <linux/of_device.h>
 #include <asm/io.h>
 #include <asm/prom.h>
 #include <asm/iommu.h>
@@ -56,15 +57,11 @@ struct sparc64_msiq_cookie {
 };
 #endif
 
-struct pci_controller_info;
-
 struct pci_pbm_info {
         struct pci_pbm_info             *next;
+        struct pci_pbm_info             *sibling;
         int                             index;
 
-        /* PCI controller we sit under. */
-        struct pci_controller_info      *parent;
-
         /* Physical address base of controller registers. */
         unsigned long                   controller_regs;
 
@@ -94,7 +91,7 @@ struct pci_pbm_info {
         char                            *name;
 
         /* OBP specific information. */
-        struct device_node              *prom_node;
+        struct of_device                *op;
         u64                             ino_bitmap;
 
         /* PBM I/O and Memory space resources. */
@@ -107,6 +104,10 @@ struct pci_pbm_info {
         /* This will be 12 on PCI-E controllers, 8 elsewhere.  */
         unsigned long                   config_space_reg_bits;
 
+        unsigned long                   pci_afsr;
+        unsigned long                   pci_afar;
+        unsigned long                   pci_csr;
+
         /* State of 66MHz capabilities on this PBM. */
         int                             is_66mhz_capable;
         int                             all_devs_66mhz;
@@ -146,25 +147,19 @@ struct pci_pbm_info {
         unsigned int                    pci_first_busno;
         unsigned int                    pci_last_busno;
         struct pci_bus                  *pci_bus;
-        void (*scan_bus)(struct pci_pbm_info *);
         struct pci_ops                  *pci_ops;
 
         int                             numa_node;
 };
 
-struct pci_controller_info {
-        /* The PCI bus modules controlled by us. */
-        struct pci_pbm_info             pbm_A;
-        struct pci_pbm_info             pbm_B;
-};
-
 extern struct pci_pbm_info *pci_pbm_root;
 
 extern int pci_num_pbms;
 
 /* PCI bus scanning and fixup support. */
 extern void pci_get_pbm_props(struct pci_pbm_info *pbm);
-extern struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm);
+extern struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm,
+                                        struct device *parent);
 extern void pci_determine_mem_io_space(struct pci_pbm_info *pbm);
 
 /* Error reporting support. */
@@ -183,4 +178,8 @@ extern void pci_config_write32(u32 *addr, u32 val);
 extern struct pci_ops sun4u_pci_ops;
 extern struct pci_ops sun4v_pci_ops;
 
+extern volatile int pci_poke_in_progress;
+extern volatile int pci_poke_cpu;
+extern volatile int pci_poke_faulted;
+
 #endif /* !(PCI_IMPL_H) */
diff --git a/arch/sparc64/kernel/pci_msi.c b/arch/sparc64/kernel/pci_msi.c
index 60c71e35021..2e680f34f72 100644
--- a/arch/sparc64/kernel/pci_msi.c
+++ b/arch/sparc64/kernel/pci_msi.c
@@ -323,7 +323,7 @@ void sparc64_pbm_msi_init(struct pci_pbm_info *pbm,
         const u32 *val;
         int len;
 
-        val = of_get_property(pbm->prom_node, "#msi-eqs", &len);
+        val = of_get_property(pbm->op->node, "#msi-eqs", &len);
         if (!val || len != 4)
                 goto no_msi;
         pbm->msiq_num = *val;
@@ -346,16 +346,16 @@ void sparc64_pbm_msi_init(struct pci_pbm_info *pbm,
                         u32 msi64_len;
                 } *arng;
 
-                val = of_get_property(pbm->prom_node, "msi-eq-size", &len);
+                val = of_get_property(pbm->op->node, "msi-eq-size", &len);
                 if (!val || len != 4)
                         goto no_msi;
 
                 pbm->msiq_ent_count = *val;
 
-                mqp = of_get_property(pbm->prom_node,
+                mqp = of_get_property(pbm->op->node,
                                       "msi-eq-to-devino", &len);
                 if (!mqp)
-                        mqp = of_get_property(pbm->prom_node,
+                        mqp = of_get_property(pbm->op->node,
                                               "msi-eq-devino", &len);
                 if (!mqp || len != sizeof(struct msiq_prop))
                         goto no_msi;
@@ -363,27 +363,27 @@ void sparc64_pbm_msi_init(struct pci_pbm_info *pbm,
                 pbm->msiq_first = mqp->first_msiq;
                 pbm->msiq_first_devino = mqp->first_devino;
 
-                val = of_get_property(pbm->prom_node, "#msi", &len);
+                val = of_get_property(pbm->op->node, "#msi", &len);
                 if (!val || len != 4)
                         goto no_msi;
                 pbm->msi_num = *val;
 
-                mrng = of_get_property(pbm->prom_node, "msi-ranges", &len);
+                mrng = of_get_property(pbm->op->node, "msi-ranges", &len);
                 if (!mrng || len != sizeof(struct msi_range_prop))
                         goto no_msi;
                 pbm->msi_first = mrng->first_msi;
 
-                val = of_get_property(pbm->prom_node, "msi-data-mask", &len);
+                val = of_get_property(pbm->op->node, "msi-data-mask", &len);
                 if (!val || len != 4)
                         goto no_msi;
                 pbm->msi_data_mask = *val;
 
-                val = of_get_property(pbm->prom_node, "msix-data-width", &len);
+                val = of_get_property(pbm->op->node, "msix-data-width", &len);
                 if (!val || len != 4)
                         goto no_msi;
                 pbm->msix_data_width = *val;
 
-                arng = of_get_property(pbm->prom_node, "msi-address-ranges",
+                arng = of_get_property(pbm->op->node, "msi-address-ranges",
                                        &len);
                 if (!arng || len != sizeof(struct addr_range_prop))
                         goto no_msi;
diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c
index f85b6bebb0b..dfb3ec89298 100644
--- a/arch/sparc64/kernel/pci_psycho.c
+++ b/arch/sparc64/kernel/pci_psycho.c
@@ -17,29 +17,14 @@
 #include <asm/irq.h>
 #include <asm/starfire.h>
 #include <asm/prom.h>
-#include <asm/oplib.h>
+#include <asm/upa.h>
 
 #include "pci_impl.h"
 #include "iommu_common.h"
+#include "psycho_common.h"
 
-/* All PSYCHO registers are 64-bits.  The following accessor
- * routines are how they are accessed.  The REG parameter
- * is a physical address.
- */
-#define psycho_read(__reg) \
-({      u64 __ret; \
-        __asm__ __volatile__("ldxa [%1] %2, %0" \
-                             : "=r" (__ret) \
-                             : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \
-                             : "memory"); \
-        __ret; \
-})
-#define psycho_write(__reg, __val) \
-        __asm__ __volatile__("stxa %0, [%1] %2" \
-                             : /* no outputs */ \
-                             : "r" (__val), "r" (__reg), \
-                               "i" (ASI_PHYS_BYPASS_EC_E) \
-                             : "memory")
+#define DRIVER_NAME     "psycho"
+#define PFX             DRIVER_NAME ": "
 
 /* Misc. PSYCHO PCI controller register offsets and definitions. */
 #define PSYCHO_CONTROL          0x0010UL
@@ -67,37 +52,7 @@
 #define  PSYCHO_PCICTRL_RESV4    0x00000000000000c0UL /* Reserved                     */
 #define  PSYCHO_PCICTRL_AEN      0x000000000000003fUL /* PCI DVMA Arbitration Enable  */
 
-/* U2P Programmer's Manual, page 13-55, configuration space
- * address format:
- * 
- *  32             24 23 16 15    11 10       8 7   2  1 0
- * ---------------------------------------------------------
- * |0 0 0 0 0 0 0 0 1| bus | device | function | reg | 0 0 |
- * ---------------------------------------------------------
- */
-#define PSYCHO_CONFIG_BASE(PBM) \
-        ((PBM)->config_space | (1UL << 24))
-#define PSYCHO_CONFIG_ENCODE(BUS, DEVFN, REG)   \
-        (((unsigned long)(BUS)   << 16) |       \
-         ((unsigned long)(DEVFN) << 8)  |       \
-         ((unsigned long)(REG)))
-
-static void *psycho_pci_config_mkaddr(struct pci_pbm_info *pbm,
-                                      unsigned char bus,
-                                      unsigned int devfn,
-                                      int where)
-{
-        if (!pbm)
-                return NULL;
-        return (void *)
-                (PSYCHO_CONFIG_BASE(pbm) |
-                 PSYCHO_CONFIG_ENCODE(bus, devfn, where));
-}
-
 /* PSYCHO error handling support. */
-enum psycho_error_type {
-        UE_ERR, CE_ERR, PCI_ERR
-};
 
 /* Helper function of IOMMU error checking, which checks out
  * the state of the streaming buffers.  The IOMMU lock is
@@ -122,129 +77,10 @@ enum psycho_error_type {
 #define PSYCHO_STC_DATA_B       0xc000UL
 #define PSYCHO_STC_ERR_A        0xb400UL
 #define PSYCHO_STC_ERR_B        0xc400UL
-#define  PSYCHO_STCERR_WRITE     0x0000000000000002UL   /* Write Error */
-#define  PSYCHO_STCERR_READ      0x0000000000000001UL   /* Read Error */
 #define PSYCHO_STC_TAG_A        0xb800UL
 #define PSYCHO_STC_TAG_B        0xc800UL
-#define  PSYCHO_STCTAG_PPN       0x0fffffff00000000UL   /* Physical Page Number */
-#define  PSYCHO_STCTAG_VPN       0x00000000ffffe000UL   /* Virtual Page Number */
-#define  PSYCHO_STCTAG_VALID     0x0000000000000002UL   /* Valid */
-#define  PSYCHO_STCTAG_WRITE     0x0000000000000001UL   /* Writable */
 #define PSYCHO_STC_LINE_A       0xb900UL
 #define PSYCHO_STC_LINE_B       0xc900UL
-#define  PSYCHO_STCLINE_LINDX    0x0000000001e00000UL   /* LRU Index */
-#define  PSYCHO_STCLINE_SPTR     0x00000000001f8000UL   /* Dirty Data Start Pointer */
-#define  PSYCHO_STCLINE_LADDR    0x0000000000007f00UL   /* Line Address */
-#define  PSYCHO_STCLINE_EPTR     0x00000000000000fcUL   /* Dirty Data End Pointer */
-#define  PSYCHO_STCLINE_VALID    0x0000000000000002UL   /* Valid */
-#define  PSYCHO_STCLINE_FOFN     0x0000000000000001UL   /* Fetch Outstanding / Flush Necessary */
-
-static DEFINE_SPINLOCK(stc_buf_lock);
-static unsigned long stc_error_buf[128];
-static unsigned long stc_tag_buf[16];
-static unsigned long stc_line_buf[16];
-
-static void __psycho_check_one_stc(struct pci_pbm_info *pbm,
-                                   int is_pbm_a)
-{
-        struct strbuf *strbuf = &pbm->stc;
-        unsigned long regbase = pbm->controller_regs;
-        unsigned long err_base, tag_base, line_base;
-        u64 control;
-        int i;
-
-        if (is_pbm_a) {
-                err_base = regbase + PSYCHO_STC_ERR_A;
-                tag_base = regbase + PSYCHO_STC_TAG_A;
-                line_base = regbase + PSYCHO_STC_LINE_A;
-        } else {
-                err_base = regbase + PSYCHO_STC_ERR_B;
-                tag_base = regbase + PSYCHO_STC_TAG_B;
-                line_base = regbase + PSYCHO_STC_LINE_B;
-        }
-
-        spin_lock(&stc_buf_lock);
-
-        /* This is __REALLY__ dangerous.  When we put the
-         * streaming buffer into diagnostic mode to probe
-         * it's tags and error status, we _must_ clear all
-         * of the line tag valid bits before re-enabling
-         * the streaming buffer.  If any dirty data lives
-         * in the STC when we do this, we will end up
-         * invalidating it before it has a chance to reach
-         * main memory.
-         */
-        control = psycho_read(strbuf->strbuf_control);
-        psycho_write(strbuf->strbuf_control,
-                     (control | PSYCHO_STRBUF_CTRL_DENAB));
-        for (i = 0; i < 128; i++) {
-                unsigned long val;
-
-                val = psycho_read(err_base + (i * 8UL));
-                psycho_write(err_base + (i * 8UL), 0UL);
-                stc_error_buf[i] = val;
-        }
-        for (i = 0; i < 16; i++) {
-                stc_tag_buf[i] = psycho_read(tag_base + (i * 8UL));
-                stc_line_buf[i] = psycho_read(line_base + (i * 8UL));
-                psycho_write(tag_base + (i * 8UL), 0UL);
-                psycho_write(line_base + (i * 8UL), 0UL);
-        }
-
-        /* OK, state is logged, exit diagnostic mode. */
-        psycho_write(strbuf->strbuf_control, control);
-
-        for (i = 0; i < 16; i++) {
-                int j, saw_error, first, last;
-
-                saw_error = 0;
-                first = i * 8;
-                last = first + 8;
-                for (j = first; j < last; j++) {
-                        unsigned long errval = stc_error_buf[j];
-                        if (errval != 0) {
-                                saw_error++;
-                                printk("%s: STC_ERR(%d)[wr(%d)rd(%d)]\n",
-                                       pbm->name,
-                                       j,
-                                       (errval & PSYCHO_STCERR_WRITE) ? 1 : 0,
-                                       (errval & PSYCHO_STCERR_READ) ? 1 : 0);
-                        }
-                }
-                if (saw_error != 0) {
-                        unsigned long tagval = stc_tag_buf[i];
-                        unsigned long lineval = stc_line_buf[i];
-                        printk("%s: STC_TAG(%d)[PA(%016lx)VA(%08lx)V(%d)W(%d)]\n",
-                               pbm->name,
-                               i,
-                               ((tagval & PSYCHO_STCTAG_PPN) >> 19UL),
-                               (tagval & PSYCHO_STCTAG_VPN),
-                               ((tagval & PSYCHO_STCTAG_VALID) ? 1 : 0),
-                               ((tagval & PSYCHO_STCTAG_WRITE) ? 1 : 0));
-                        printk("%s: STC_LINE(%d)[LIDX(%lx)SP(%lx)LADDR(%lx)EP(%lx)"
-                               "V(%d)FOFN(%d)]\n",
-                               pbm->name,
-                               i,
-                               ((lineval & PSYCHO_STCLINE_LINDX) >> 21UL),
-                               ((lineval & PSYCHO_STCLINE_SPTR) >> 15UL),
-                               ((lineval & PSYCHO_STCLINE_LADDR) >> 8UL),
-                               ((lineval & PSYCHO_STCLINE_EPTR) >> 2UL),
-                               ((lineval & PSYCHO_STCLINE_VALID) ? 1 : 0),
-                               ((lineval & PSYCHO_STCLINE_FOFN) ? 1 : 0));
-                }
-        }
-
-        spin_unlock(&stc_buf_lock);
-}
-
-static void __psycho_check_stc_error(struct pci_pbm_info *pbm,
-                                     unsigned long afsr,
-                                     unsigned long afar,
-                                     enum psycho_error_type type)
-{
-        __psycho_check_one_stc(pbm,
-                               (pbm == &pbm->parent->pbm_A));
-}
 
 /* When an Uncorrectable Error or a PCI Error happens, we
  * interrogate the IOMMU state to see if it is the cause.
@@ -271,122 +107,7 @@ static void __psycho_check_stc_error(struct pci_pbm_info *pbm,
 #define PSYCHO_IOMMU_TSBBASE    0x0208UL
 #define PSYCHO_IOMMU_FLUSH      0x0210UL
 #define PSYCHO_IOMMU_TAG        0xa580UL
-#define  PSYCHO_IOMMU_TAG_ERRSTS (0x3UL << 23UL)
-#define  PSYCHO_IOMMU_TAG_ERR    (0x1UL << 22UL)
-#define  PSYCHO_IOMMU_TAG_WRITE  (0x1UL << 21UL)
-#define  PSYCHO_IOMMU_TAG_STREAM (0x1UL << 20UL)
-#define  PSYCHO_IOMMU_TAG_SIZE   (0x1UL << 19UL)
-#define  PSYCHO_IOMMU_TAG_VPAGE  0x7ffffUL
 #define PSYCHO_IOMMU_DATA       0xa600UL
-#define  PSYCHO_IOMMU_DATA_VALID (1UL << 30UL)
-#define  PSYCHO_IOMMU_DATA_CACHE (1UL << 28UL)
-#define  PSYCHO_IOMMU_DATA_PPAGE 0xfffffffUL
-static void psycho_check_iommu_error(struct pci_pbm_info *pbm,
-                                     unsigned long afsr,
-                                     unsigned long afar,
-                                     enum psycho_error_type type)
-{
-        struct iommu *iommu = pbm->iommu;
-        unsigned long iommu_tag[16];
-        unsigned long iommu_data[16];
-        unsigned long flags;
-        u64 control;
-        int i;
-
-        spin_lock_irqsave(&iommu->lock, flags);
-        control = psycho_read(iommu->iommu_control);
-        if (control & PSYCHO_IOMMU_CTRL_XLTEERR) {
-                char *type_string;
-
-                /* Clear the error encountered bit. */
-                control &= ~PSYCHO_IOMMU_CTRL_XLTEERR;
-                psycho_write(iommu->iommu_control, control);
-
-                switch((control & PSYCHO_IOMMU_CTRL_XLTESTAT) >> 25UL) {
-                case 0:
-                        type_string = "Protection Error";
-                        break;
-                case 1:
-                        type_string = "Invalid Error";
-                        break;
-                case 2:
-                        type_string = "TimeOut Error";
-                        break;
-                case 3:
-                default:
-                        type_string = "ECC Error";
-                        break;
-                };
-                printk("%s: IOMMU Error, type[%s]\n",
-                       pbm->name, type_string);
-
-                /* Put the IOMMU into diagnostic mode and probe
-                 * it's TLB for entries with error status.
-                 *
-                 * It is very possible for another DVMA to occur
-                 * while we do this probe, and corrupt the system
-                 * further.  But we are so screwed at this point
-                 * that we are likely to crash hard anyways, so
-                 * get as much diagnostic information to the
-                 * console as we can.
-                 */
-                psycho_write(iommu->iommu_control,
-                             control | PSYCHO_IOMMU_CTRL_DENAB);
-                for (i = 0; i < 16; i++) {
-                        unsigned long base = pbm->controller_regs;
-
-                        iommu_tag[i] =
-                                psycho_read(base + PSYCHO_IOMMU_TAG + (i * 8UL));
-                        iommu_data[i] =
-                                psycho_read(base + PSYCHO_IOMMU_DATA + (i * 8UL));
-
-                        /* Now clear out the entry. */
-                        psycho_write(base + PSYCHO_IOMMU_TAG + (i * 8UL), 0);
-                        psycho_write(base + PSYCHO_IOMMU_DATA + (i * 8UL), 0);
-                }
-
-                /* Leave diagnostic mode. */
-                psycho_write(iommu->iommu_control, control);
-
-                for (i = 0; i < 16; i++) {
-                        unsigned long tag, data;
-
-                        tag = iommu_tag[i];
-                        if (!(tag & PSYCHO_IOMMU_TAG_ERR))
-                                continue;
-
-                        data = iommu_data[i];
-                        switch((tag & PSYCHO_IOMMU_TAG_ERRSTS) >> 23UL) {
-                        case 0:
-                                type_string = "Protection Error";
-                                break;
-                        case 1:
-                                type_string = "Invalid Error";
-                                break;
-                        case 2:
-                                type_string = "TimeOut Error";
-                                break;
-                        case 3:
-                        default:
-                                type_string = "ECC Error";
-                                break;
-                        };
-                        printk("%s: IOMMU TAG(%d)[error(%s) wr(%d) str(%d) sz(%dK) vpg(%08lx)]\n",
-                               pbm->name, i, type_string,
-                               ((tag & PSYCHO_IOMMU_TAG_WRITE) ? 1 : 0),
-                               ((tag & PSYCHO_IOMMU_TAG_STREAM) ? 1 : 0),
-                               ((tag & PSYCHO_IOMMU_TAG_SIZE) ? 64 : 8),
-                               (tag & PSYCHO_IOMMU_TAG_VPAGE) << IOMMU_PAGE_SHIFT);
-                        printk("%s: IOMMU DATA(%d)[valid(%d) cache(%d) ppg(%016lx)]\n",
-                               pbm->name, i,
-                               ((data & PSYCHO_IOMMU_DATA_VALID) ? 1 : 0),
-                               ((data & PSYCHO_IOMMU_DATA_CACHE) ? 1 : 0),
-                               (data & PSYCHO_IOMMU_DATA_PPAGE) << IOMMU_PAGE_SHIFT);
-                }
-        }
-        __psycho_check_stc_error(pbm, afsr, afar, type);
-        spin_unlock_irqrestore(&iommu->lock, flags);
-}
 
 /* Uncorrectable Errors.  Cause of the error and the address are
  * recorded in the UE_AFSR and UE_AFAR of PSYCHO.  They are errors
@@ -410,15 +131,14 @@ static void psycho_check_iommu_error(struct pci_pbm_info *pbm,
 static irqreturn_t psycho_ue_intr(int irq, void *dev_id)
 {
         struct pci_pbm_info *pbm = dev_id;
-        struct pci_controller_info *p = pbm->parent;
         unsigned long afsr_reg = pbm->controller_regs + PSYCHO_UE_AFSR;
         unsigned long afar_reg = pbm->controller_regs + PSYCHO_UE_AFAR;
         unsigned long afsr, afar, error_bits;
         int reported;
 
         /* Latch uncorrectable error status. */
-        afar = psycho_read(afar_reg);
-        afsr = psycho_read(afsr_reg);
+        afar = upa_readq(afar_reg);
+        afsr = upa_readq(afsr_reg);
 
         /* Clear the primary/secondary error status bits. */
         error_bits = afsr &
@@ -426,7 +146,7 @@ static irqreturn_t psycho_ue_intr(int irq, void *dev_id)
                  PSYCHO_UEAFSR_SPIO | PSYCHO_UEAFSR_SDRD | PSYCHO_UEAFSR_SDWR);
         if (!error_bits)
                 return IRQ_NONE;
-        psycho_write(afsr_reg, error_bits);
+        upa_writeq(error_bits, afsr_reg);
 
         /* Log the error. */
         printk("%s: Uncorrectable Error, primary error type[%s]\n",
@@ -463,8 +183,9 @@ static irqreturn_t psycho_ue_intr(int irq, void *dev_id)
         printk("]\n");
 
         /* Interrogate both IOMMUs for error status. */
-        psycho_check_iommu_error(&p->pbm_A, afsr, afar, UE_ERR);
-        psycho_check_iommu_error(&p->pbm_B, afsr, afar, UE_ERR);
+        psycho_check_iommu_error(pbm, afsr, afar, UE_ERR);
+        if (pbm->sibling)
+                psycho_check_iommu_error(pbm->sibling, afsr, afar, UE_ERR);
 
         return IRQ_HANDLED;
 }
@@ -495,8 +216,8 @@ static irqreturn_t psycho_ce_intr(int irq, void *dev_id)
         int reported;
 
         /* Latch error status. */
-        afar = psycho_read(afar_reg);
-        afsr = psycho_read(afsr_reg);
+        afar = upa_readq(afar_reg);
+        afsr = upa_readq(afsr_reg);
 
         /* Clear primary/secondary error status bits. */
         error_bits = afsr &
@@ -504,7 +225,7 @@ static irqreturn_t psycho_ce_intr(int irq, void *dev_id)
                  PSYCHO_CEAFSR_SPIO | PSYCHO_CEAFSR_SDRD | PSYCHO_CEAFSR_SDWR);
         if (!error_bits)
                 return IRQ_NONE;
-        psycho_write(afsr_reg, error_bits);
+        upa_writeq(error_bits, afsr_reg);
 
         /* Log the error. */
         printk("%s: Correctable Error, primary error type[%s]\n",
@@ -554,164 +275,9 @@ static irqreturn_t psycho_ce_intr(int irq, void *dev_id)
  */
 #define PSYCHO_PCI_AFSR_A       0x2010UL
 #define PSYCHO_PCI_AFSR_B       0x4010UL
-#define  PSYCHO_PCIAFSR_PMA     0x8000000000000000UL /* Primary Master Abort Error   */
-#define  PSYCHO_PCIAFSR_PTA     0x4000000000000000UL /* Primary Target Abort Error   */
-#define  PSYCHO_PCIAFSR_PRTRY   0x2000000000000000UL /* Primary Excessive Retries    */
-#define  PSYCHO_PCIAFSR_PPERR   0x1000000000000000UL /* Primary Parity Error         */
-#define  PSYCHO_PCIAFSR_SMA     0x0800000000000000UL /* Secondary Master Abort Error */
-#define  PSYCHO_PCIAFSR_STA     0x0400000000000000UL /* Secondary Target Abort Error */
-#define  PSYCHO_PCIAFSR_SRTRY   0x0200000000000000UL /* Secondary Excessive Retries  */
-#define  PSYCHO_PCIAFSR_SPERR   0x0100000000000000UL /* Secondary Parity Error       */
-#define  PSYCHO_PCIAFSR_RESV1   0x00ff000000000000UL /* Reserved                     */
-#define  PSYCHO_PCIAFSR_BMSK    0x0000ffff00000000UL /* Bytemask of failed transfer  */
-#define  PSYCHO_PCIAFSR_BLK     0x0000000080000000UL /* Trans was block operation    */
-#define  PSYCHO_PCIAFSR_RESV2   0x0000000040000000UL /* Reserved                     */
-#define  PSYCHO_PCIAFSR_MID     0x000000003e000000UL /* MID causing the error        */
-#define  PSYCHO_PCIAFSR_RESV3   0x0000000001ffffffUL /* Reserved                     */
 #define PSYCHO_PCI_AFAR_A       0x2018UL
 #define PSYCHO_PCI_AFAR_B       0x4018UL
 
-static irqreturn_t psycho_pcierr_intr_other(struct pci_pbm_info *pbm, int is_pbm_a)
-{
-        unsigned long csr_reg, csr, csr_error_bits;
-        irqreturn_t ret = IRQ_NONE;
-        u16 stat, *addr;
-
-        if (is_pbm_a) {
-                csr_reg = pbm->controller_regs + PSYCHO_PCIA_CTRL;
-        } else {
-                csr_reg = pbm->controller_regs + PSYCHO_PCIB_CTRL;
-        }
-        csr = psycho_read(csr_reg);
-        csr_error_bits =
-                csr & (PSYCHO_PCICTRL_SBH_ERR | PSYCHO_PCICTRL_SERR);
-        if (csr_error_bits) {
-                /* Clear the errors.  */
-                psycho_write(csr_reg, csr);
-
-                /* Log 'em.  */
-                if (csr_error_bits & PSYCHO_PCICTRL_SBH_ERR)
-                        printk("%s: PCI streaming byte hole error asserted.\n",
-                               pbm->name);
-                if (csr_error_bits & PSYCHO_PCICTRL_SERR)
-                        printk("%s: PCI SERR signal asserted.\n", pbm->name);
-                ret = IRQ_HANDLED;
-        }
-        addr = psycho_pci_config_mkaddr(pbm, pbm->pci_first_busno,
-                                        0, PCI_STATUS);
-        pci_config_read16(addr, &stat);
-        if (stat & (PCI_STATUS_PARITY |
-                    PCI_STATUS_SIG_TARGET_ABORT |
-                    PCI_STATUS_REC_TARGET_ABORT |
-                    PCI_STATUS_REC_MASTER_ABORT |
-                    PCI_STATUS_SIG_SYSTEM_ERROR)) {
-                printk("%s: PCI bus error, PCI_STATUS[%04x]\n",
-                       pbm->name, stat);
-                pci_config_write16(addr, 0xffff);
-                ret = IRQ_HANDLED;
-        }
-        return ret;
-}
-
-static irqreturn_t psycho_pcierr_intr(int irq, void *dev_id)
-{
-        struct pci_pbm_info *pbm = dev_id;
-        struct pci_controller_info *p = pbm->parent;
-        unsigned long afsr_reg, afar_reg;
-        unsigned long afsr, afar, error_bits;
-        int is_pbm_a, reported;
-
-        is_pbm_a = (pbm == &pbm->parent->pbm_A);
-        if (is_pbm_a) {
-                afsr_reg = p->pbm_A.controller_regs + PSYCHO_PCI_AFSR_A;
-                afar_reg = p->pbm_A.controller_regs + PSYCHO_PCI_AFAR_A;
-        } else {
-                afsr_reg = p->pbm_A.controller_regs + PSYCHO_PCI_AFSR_B;
-                afar_reg = p->pbm_A.controller_regs + PSYCHO_PCI_AFAR_B;
-        }
-
-        /* Latch error status. */
-        afar = psycho_read(afar_reg);
-        afsr = psycho_read(afsr_reg);
-
-        /* Clear primary/secondary error status bits. */
-        error_bits = afsr &
-                (PSYCHO_PCIAFSR_PMA | PSYCHO_PCIAFSR_PTA |
-                 PSYCHO_PCIAFSR_PRTRY | PSYCHO_PCIAFSR_PPERR |
-                 PSYCHO_PCIAFSR_SMA | PSYCHO_PCIAFSR_STA |
-                 PSYCHO_PCIAFSR_SRTRY | PSYCHO_PCIAFSR_SPERR);
-        if (!error_bits)
-                return psycho_pcierr_intr_other(pbm, is_pbm_a);
-        psycho_write(afsr_reg, error_bits);
-
-        /* Log the error. */
-        printk("%s: PCI Error, primary error type[%s]\n",
-               pbm->name,
-               (((error_bits & PSYCHO_PCIAFSR_PMA) ?
-                 "Master Abort" :
-                 ((error_bits & PSYCHO_PCIAFSR_PTA) ?
-                  "Target Abort" :
-                  ((error_bits & PSYCHO_PCIAFSR_PRTRY) ?
-                   "Excessive Retries" :
-                   ((error_bits & PSYCHO_PCIAFSR_PPERR) ?
-                    "Parity Error" : "???"))))));
-        printk("%s: bytemask[%04lx] UPA_MID[%02lx] was_block(%d)\n",
-               pbm->name,
-               (afsr & PSYCHO_PCIAFSR_BMSK) >> 32UL,
-               (afsr & PSYCHO_PCIAFSR_MID) >> 25UL,
-               (afsr & PSYCHO_PCIAFSR_BLK) ? 1 : 0);
-        printk("%s: PCI AFAR [%016lx]\n", pbm->name, afar);
-        printk("%s: PCI Secondary errors [", pbm->name);
-        reported = 0;
-        if (afsr & PSYCHO_PCIAFSR_SMA) {
-                reported++;
-                printk("(Master Abort)");
-        }
-        if (afsr & PSYCHO_PCIAFSR_STA) {
-                reported++;
-                printk("(Target Abort)");
-        }
-        if (afsr & PSYCHO_PCIAFSR_SRTRY) {
-                reported++;
-                printk("(Excessive Retries)");
-        }
-        if (afsr & PSYCHO_PCIAFSR_SPERR) {
-                reported++;
-                printk("(Parity Error)");
-        }
-        if (!reported)
-                printk("(none)");
-        printk("]\n");
-
-        /* For the error types shown, scan PBM's PCI bus for devices
-         * which have logged that error type.
-         */
-
-        /* If we see a Target Abort, this could be the result of an
-         * IOMMU translation error of some sort.  It is extremely
-         * useful to log this information as usually it indicates
-         * a bug in the IOMMU support code or a PCI device driver.
-         */
-        if (error_bits & (PSYCHO_PCIAFSR_PTA | PSYCHO_PCIAFSR_STA)) {
-                psycho_check_iommu_error(pbm, afsr, afar, PCI_ERR);
-                pci_scan_for_target_abort(pbm, pbm->pci_bus);
-        }
-        if (error_bits & (PSYCHO_PCIAFSR_PMA | PSYCHO_PCIAFSR_SMA))
-                pci_scan_for_master_abort(pbm, pbm->pci_bus);
-
-        /* For excessive retries, PSYCHO/PBM will abort the device
-         * and there is no way to specifically check for excessive
-         * retries in the config space status registers.  So what
-         * we hope is that we'll catch it via the master/target
-         * abort events.
-         */
-
-        if (error_bits & (PSYCHO_PCIAFSR_PPERR | PSYCHO_PCIAFSR_SPERR))
-                pci_scan_for_parity_error(pbm, pbm->pci_bus);
-
-        return IRQ_HANDLED;
-}
-
 /* XXX What about PowerFail/PowerManagement??? -DaveM */
 #define PSYCHO_ECC_CTRL         0x0020
 #define  PSYCHO_ECCCTRL_EE       0x8000000000000000UL /* Enable ECC Checking */
@@ -719,7 +285,7 @@ static irqreturn_t psycho_pcierr_intr(int irq, void *dev_id)
 #define  PSYCHO_ECCCTRL_CE       0x2000000000000000UL /* Enable CE INterrupts */
 static void psycho_register_error_handlers(struct pci_pbm_info *pbm)
 {
-        struct of_device *op = of_find_device_by_node(pbm->prom_node);
+        struct of_device *op = of_find_device_by_node(pbm->op->node);
         unsigned long base = pbm->controller_regs;
         u64 tmp;
         int err;
@@ -762,27 +328,26 @@ static void psycho_register_error_handlers(struct pci_pbm_info *pbm)
                        "err=%d\n", pbm->name, err);
 
         /* Enable UE and CE interrupts for controller. */
-        psycho_write(base + PSYCHO_ECC_CTRL,
-                     (PSYCHO_ECCCTRL_EE |
-                      PSYCHO_ECCCTRL_UE |
-                      PSYCHO_ECCCTRL_CE));
+        upa_writeq((PSYCHO_ECCCTRL_EE |
+                    PSYCHO_ECCCTRL_UE |
+                    PSYCHO_ECCCTRL_CE), base + PSYCHO_ECC_CTRL);
 
         /* Enable PCI Error interrupts and clear error
          * bits for each PBM.
          */
-        tmp = psycho_read(base + PSYCHO_PCIA_CTRL);
+        tmp = upa_readq(base + PSYCHO_PCIA_CTRL);
         tmp |= (PSYCHO_PCICTRL_SERR |
                 PSYCHO_PCICTRL_SBH_ERR |
                 PSYCHO_PCICTRL_EEN);
         tmp &= ~(PSYCHO_PCICTRL_SBH_INT);
-        psycho_write(base + PSYCHO_PCIA_CTRL, tmp);
+        upa_writeq(tmp, base + PSYCHO_PCIA_CTRL);
                      
-        tmp = psycho_read(base + PSYCHO_PCIB_CTRL);
+        tmp = upa_readq(base + PSYCHO_PCIB_CTRL);
         tmp |= (PSYCHO_PCICTRL_SERR |
                 PSYCHO_PCICTRL_SBH_ERR |
                 PSYCHO_PCICTRL_EEN);
         tmp &= ~(PSYCHO_PCICTRL_SBH_INT);
-        psycho_write(base + PSYCHO_PCIB_CTRL, tmp);
+        upa_writeq(tmp, base + PSYCHO_PCIB_CTRL);
 }
 
 /* PSYCHO boot time probing and initialization. */
@@ -803,11 +368,12 @@ static void pbm_config_busmastering(struct pci_pbm_info *pbm)
         pci_config_write8(addr, 64);
 }
 
-static void __init psycho_scan_bus(struct pci_pbm_info *pbm)
+static void __init psycho_scan_bus(struct pci_pbm_info *pbm,
+                                   struct device *parent)
 {
         pbm_config_busmastering(pbm);
         pbm->is_66mhz_capable = 0;
-        pbm->pci_bus = pci_scan_one_pbm(pbm);
+        pbm->pci_bus = pci_scan_one_pbm(pbm, parent);
 
         /* After the PCI bus scan is complete, we can register
          * the error interrupt handlers.
@@ -815,61 +381,6 @@ static void __init psycho_scan_bus(struct pci_pbm_info *pbm)
         psycho_register_error_handlers(pbm);
 }
 
-static int psycho_iommu_init(struct pci_pbm_info *pbm)
-{
-        struct iommu *iommu = pbm->iommu;
-        unsigned long i;
-        u64 control;
-        int err;
-
-        /* Register addresses. */
-        iommu->iommu_control  = pbm->controller_regs + PSYCHO_IOMMU_CONTROL;
-        iommu->iommu_tsbbase  = pbm->controller_regs + PSYCHO_IOMMU_TSBBASE;
-        iommu->iommu_flush    = pbm->controller_regs + PSYCHO_IOMMU_FLUSH;
-        iommu->iommu_tags     = iommu->iommu_flush + (0xa580UL - 0x0210UL);
-
-        /* PSYCHO's IOMMU lacks ctx flushing. */
-        iommu->iommu_ctxflush = 0;
-
-        /* We use the main control register of PSYCHO as the write
-         * completion register.
-         */
-        iommu->write_complete_reg = pbm->controller_regs + PSYCHO_CONTROL;
-
-        /*
-         * Invalidate TLB Entries.
-         */
-        control = psycho_read(pbm->controller_regs + PSYCHO_IOMMU_CONTROL);
-        control |= PSYCHO_IOMMU_CTRL_DENAB;
-        psycho_write(pbm->controller_regs + PSYCHO_IOMMU_CONTROL, control);
-        for(i = 0; i < 16; i++) {
-                psycho_write(pbm->controller_regs + PSYCHO_IOMMU_TAG + (i * 8UL), 0);
-                psycho_write(pbm->controller_regs + PSYCHO_IOMMU_DATA + (i * 8UL), 0);
-        }
-
-        /* Leave diag mode enabled for full-flushing done
-         * in pci_iommu.c
-         */
-        err = iommu_table_init(iommu, IO_TSB_SIZE, 0xc0000000, 0xffffffff,
-                               pbm->numa_node);
-        if (err)
-                return err;
-
-        psycho_write(pbm->controller_regs + PSYCHO_IOMMU_TSBBASE,
-                     __pa(iommu->page_table));
-
-        control = psycho_read(pbm->controller_regs + PSYCHO_IOMMU_CONTROL);
-        control &= ~(PSYCHO_IOMMU_CTRL_TSBSZ | PSYCHO_IOMMU_CTRL_TBWSZ);
-        control |= (PSYCHO_IOMMU_TSBSZ_128K | PSYCHO_IOMMU_CTRL_ENAB);
-        psycho_write(pbm->controller_regs + PSYCHO_IOMMU_CONTROL, control);
-
-        /* If necessary, hook us up for starfire IRQ translations. */
-        if (this_is_starfire)
-                starfire_hookup(pbm->portid);
-
-        return 0;
-}
-
 #define PSYCHO_IRQ_RETRY        0x1a00UL
 #define PSYCHO_PCIA_DIAG        0x2020UL
 #define PSYCHO_PCIB_DIAG        0x4020UL
@@ -886,28 +397,28 @@ static void psycho_controller_hwinit(struct pci_pbm_info *pbm)
 {
         u64 tmp;
 
-        psycho_write(pbm->controller_regs + PSYCHO_IRQ_RETRY, 5);
+        upa_writeq(5, pbm->controller_regs + PSYCHO_IRQ_RETRY);
 
         /* Enable arbiter for all PCI slots. */
-        tmp = psycho_read(pbm->controller_regs + PSYCHO_PCIA_CTRL);
+        tmp = upa_readq(pbm->controller_regs + PSYCHO_PCIA_CTRL);
         tmp |= PSYCHO_PCICTRL_AEN;
-        psycho_write(pbm->controller_regs + PSYCHO_PCIA_CTRL, tmp);
+        upa_writeq(tmp, pbm->controller_regs + PSYCHO_PCIA_CTRL);
 
-        tmp = psycho_read(pbm->controller_regs + PSYCHO_PCIB_CTRL);
+        tmp = upa_readq(pbm->controller_regs + PSYCHO_PCIB_CTRL);
         tmp |= PSYCHO_PCICTRL_AEN;
-        psycho_write(pbm->controller_regs + PSYCHO_PCIB_CTRL, tmp);
+        upa_writeq(tmp, pbm->controller_regs + PSYCHO_PCIB_CTRL);
 
         /* Disable DMA write / PIO read synchronization on
          * both PCI bus segments.
          * [ U2P Erratum 1243770, STP2223BGA data sheet ]
          */
-        tmp = psycho_read(pbm->controller_regs + PSYCHO_PCIA_DIAG);
+        tmp = upa_readq(pbm->controller_regs + PSYCHO_PCIA_DIAG);
         tmp |= PSYCHO_PCIDIAG_DDWSYNC;
-        psycho_write(pbm->controller_regs + PSYCHO_PCIA_DIAG, tmp);
+        upa_writeq(tmp, pbm->controller_regs + PSYCHO_PCIA_DIAG);
 
-        tmp = psycho_read(pbm->controller_regs + PSYCHO_PCIB_DIAG);
+        tmp = upa_readq(pbm->controller_regs + PSYCHO_PCIB_DIAG);
         tmp |= PSYCHO_PCIDIAG_DDWSYNC;
-        psycho_write(pbm->controller_regs + PSYCHO_PCIB_DIAG, tmp);
+        upa_writeq(tmp, pbm->controller_regs + PSYCHO_PCIB_DIAG);
 }
 
 static void psycho_pbm_strbuf_init(struct pci_pbm_info *pbm,
@@ -920,10 +431,16 @@ static void psycho_pbm_strbuf_init(struct pci_pbm_info *pbm,
                 pbm->stc.strbuf_control  = base + PSYCHO_STRBUF_CONTROL_A;
                 pbm->stc.strbuf_pflush   = base + PSYCHO_STRBUF_FLUSH_A;
                 pbm->stc.strbuf_fsync    = base + PSYCHO_STRBUF_FSYNC_A;
+                pbm->stc.strbuf_err_stat = base + PSYCHO_STC_ERR_A;
+                pbm->stc.strbuf_tag_diag = base + PSYCHO_STC_TAG_A;
+                pbm->stc.strbuf_line_diag= base + PSYCHO_STC_LINE_A;
         } else {
                 pbm->stc.strbuf_control  = base + PSYCHO_STRBUF_CONTROL_B;
                 pbm->stc.strbuf_pflush   = base + PSYCHO_STRBUF_FLUSH_B;
                 pbm->stc.strbuf_fsync    = base + PSYCHO_STRBUF_FSYNC_B;
+                pbm->stc.strbuf_err_stat = base + PSYCHO_STC_ERR_B;
+                pbm->stc.strbuf_tag_diag = base + PSYCHO_STC_TAG_B;
+                pbm->stc.strbuf_line_diag= base + PSYCHO_STC_LINE_B;
         }
         /* PSYCHO's streaming buffer lacks ctx flushing. */
         pbm->stc.strbuf_ctxflush      = 0;
@@ -946,7 +463,7 @@ static void psycho_pbm_strbuf_init(struct pci_pbm_info *pbm,
          */
 #undef PSYCHO_STRBUF_RERUN_ENABLE
 #undef PSYCHO_STRBUF_RERUN_DISABLE
-        control = psycho_read(pbm->stc.strbuf_control);
+        control = upa_readq(pbm->stc.strbuf_control);
         control |= PSYCHO_STRBUF_CTRL_ENAB;
         control &= ~(PSYCHO_STRBUF_CTRL_LENAB | PSYCHO_STRBUF_CTRL_LPTR);
 #ifdef PSYCHO_STRBUF_RERUN_ENABLE
@@ -956,7 +473,7 @@ static void psycho_pbm_strbuf_init(struct pci_pbm_info *pbm,
         control |= PSYCHO_STRBUF_CTRL_RRDIS;
 #endif
 #endif
-        psycho_write(pbm->stc.strbuf_control, control);
+        upa_writeq(control, pbm->stc.strbuf_control);
 
         pbm->stc.strbuf_enabled = 1;
 }
@@ -968,111 +485,134 @@ static void psycho_pbm_strbuf_init(struct pci_pbm_info *pbm,
 #define PSYCHO_MEMSPACE_B       0x180000000UL
 #define PSYCHO_MEMSPACE_SIZE    0x07fffffffUL
 
-static void __init psycho_pbm_init(struct pci_controller_info *p,
-                            struct device_node *dp, int is_pbm_a)
+static void __init psycho_pbm_init(struct pci_pbm_info *pbm,
+                                   struct of_device *op, int is_pbm_a)
 {
-        struct property *prop;
-        struct pci_pbm_info *pbm;
-
-        if (is_pbm_a)
-                pbm = &p->pbm_A;
-        else
-                pbm = &p->pbm_B;
-
-        pbm->next = pci_pbm_root;
-        pci_pbm_root = pbm;
-
-        pbm->numa_node = -1;
-
-        pbm->scan_bus = psycho_scan_bus;
-        pbm->pci_ops = &sun4u_pci_ops;
-        pbm->config_space_reg_bits = 8;
-
-        pbm->index = pci_num_pbms++;
-
-        pbm->chip_type = PBM_CHIP_TYPE_PSYCHO;
-        pbm->chip_version = 0;
-        prop = of_find_property(dp, "version#", NULL);
-        if (prop)
-                pbm->chip_version = *(int *) prop->value;
-        pbm->chip_revision = 0;
-        prop = of_find_property(dp, "module-revision#", NULL);
-        if (prop)
-                pbm->chip_revision = *(int *) prop->value;
-
-        pbm->parent = p;
-        pbm->prom_node = dp;
-        pbm->name = dp->full_name;
-
-        printk("%s: PSYCHO PCI Bus Module ver[%x:%x]\n",
-               pbm->name,
-               pbm->chip_version, pbm->chip_revision);
-
-        pci_determine_mem_io_space(pbm);
+        psycho_pbm_init_common(pbm, op, "PSYCHO", PBM_CHIP_TYPE_PSYCHO);
+        psycho_pbm_strbuf_init(pbm, is_pbm_a);
+        psycho_scan_bus(pbm, &op->dev);
+}
 
-        pci_get_pbm_props(pbm);
+static struct pci_pbm_info * __devinit psycho_find_sibling(u32 upa_portid)
+{
+        struct pci_pbm_info *pbm;
 
-        psycho_pbm_strbuf_init(pbm, is_pbm_a);
+        for (pbm = pci_pbm_root; pbm; pbm = pbm->next) {
+                if (pbm->portid == upa_portid)
+                        return pbm;
+        }
+        return NULL;
 }
 
 #define PSYCHO_CONFIGSPACE      0x001000000UL
 
-void __init psycho_init(struct device_node *dp, char *model_name)
+static int __devinit psycho_probe(struct of_device *op,
+                                  const struct of_device_id *match)
 {
-        struct linux_prom64_registers *pr_regs;
-        struct pci_controller_info *p;
+        const struct linux_prom64_registers *pr_regs;
+        struct device_node *dp = op->node;
         struct pci_pbm_info *pbm;
         struct iommu *iommu;
-        struct property *prop;
+        int is_pbm_a, err;
         u32 upa_portid;
-        int is_pbm_a;
 
-        upa_portid = 0xff;
-        prop = of_find_property(dp, "upa-portid", NULL);
-        if (prop)
-                upa_portid = *(u32 *) prop->value;
+        upa_portid = of_getintprop_default(dp, "upa-portid", 0xff);
 
-        for (pbm = pci_pbm_root; pbm; pbm = pbm->next) {
-                struct pci_controller_info *p = pbm->parent;
+        err = -ENOMEM;
+        pbm = kzalloc(sizeof(*pbm), GFP_KERNEL);
+        if (!pbm) {
+                printk(KERN_ERR PFX "Cannot allocate pci_pbm_info.\n");
+                goto out_err;
+        }
 
-                if (p->pbm_A.portid == upa_portid) {
-                        is_pbm_a = (p->pbm_A.prom_node == NULL);
-                        psycho_pbm_init(p, dp, is_pbm_a);
-                        return;
+        pbm->sibling = psycho_find_sibling(upa_portid);
+        if (pbm->sibling) {
+                iommu = pbm->sibling->iommu;
+        } else {
+                iommu = kzalloc(sizeof(struct iommu), GFP_KERNEL);
+                if (!iommu) {
+                        printk(KERN_ERR PFX "Cannot allocate PBM iommu.\n");
+                        goto out_free_controller;
                 }
         }
 
-        p = kzalloc(sizeof(struct pci_controller_info), GFP_ATOMIC);
-        if (!p)
-                goto fatal_memory_error;
-        iommu = kzalloc(sizeof(struct iommu), GFP_ATOMIC);
-        if (!iommu)
-                goto fatal_memory_error;
+        pbm->iommu = iommu;
+        pbm->portid = upa_portid;
 
-        p->pbm_A.iommu = p->pbm_B.iommu = iommu;
+        pr_regs = of_get_property(dp, "reg", NULL);
+        err = -ENODEV;
+        if (!pr_regs) {
+                printk(KERN_ERR PFX "No reg property.\n");
+                goto out_free_iommu;
+        }
 
-        p->pbm_A.portid = upa_portid;
-        p->pbm_B.portid = upa_portid;
+        is_pbm_a = ((pr_regs[0].phys_addr & 0x6000) == 0x2000);
 
-        prop = of_find_property(dp, "reg", NULL);
-        pr_regs = prop->value;
+        pbm->controller_regs = pr_regs[2].phys_addr;
+        pbm->config_space = (pr_regs[2].phys_addr + PSYCHO_CONFIGSPACE);
 
-        p->pbm_A.controller_regs = pr_regs[2].phys_addr;
-        p->pbm_B.controller_regs = pr_regs[2].phys_addr;
+        if (is_pbm_a) {
+                pbm->pci_afsr = pbm->controller_regs + PSYCHO_PCI_AFSR_A;
+                pbm->pci_afar = pbm->controller_regs + PSYCHO_PCI_AFAR_A;
+                pbm->pci_csr  = pbm->controller_regs + PSYCHO_PCIA_CTRL;
+        } else {
+                pbm->pci_afsr = pbm->controller_regs + PSYCHO_PCI_AFSR_B;
+                pbm->pci_afar = pbm->controller_regs + PSYCHO_PCI_AFAR_B;
+                pbm->pci_csr  = pbm->controller_regs + PSYCHO_PCIB_CTRL;
+        }
 
-        p->pbm_A.config_space = p->pbm_B.config_space =
-                (pr_regs[2].phys_addr + PSYCHO_CONFIGSPACE);
+        psycho_controller_hwinit(pbm);
+        if (!pbm->sibling) {
+                err = psycho_iommu_init(pbm, 128, 0xc0000000,
+                                        0xffffffff, PSYCHO_CONTROL);
+                if (err)
+                        goto out_free_iommu;
 
-        psycho_controller_hwinit(&p->pbm_A);
+                /* If necessary, hook us up for starfire IRQ translations. */
+                if (this_is_starfire)
+                        starfire_hookup(pbm->portid);
+        }
 
-        if (psycho_iommu_init(&p->pbm_A))
-                goto fatal_memory_error;
+        psycho_pbm_init(pbm, op, is_pbm_a);
 
-        is_pbm_a = ((pr_regs[0].phys_addr & 0x6000) == 0x2000);
-        psycho_pbm_init(p, dp, is_pbm_a);
-        return;
+        pbm->next = pci_pbm_root;
+        pci_pbm_root = pbm;
+
+        if (pbm->sibling)
+                pbm->sibling->sibling = pbm;
+
+        dev_set_drvdata(&op->dev, pbm);
+
+        return 0;
+
+out_free_iommu:
+        if (!pbm->sibling)
+                kfree(pbm->iommu);
 
-fatal_memory_error:
-        prom_printf("PSYCHO: Fatal memory allocation error.\n");
-        prom_halt();
+out_free_controller:
+        kfree(pbm);
+
+out_err:
+        return err;
 }
+
+static struct of_device_id __initdata psycho_match[] = {
+        {
+                .name = "pci",
+                .compatible = "pci108e,8000",
+        },
+        {},
+};
+
+static struct of_platform_driver psycho_driver = {
+        .name           = DRIVER_NAME,
+        .match_table    = psycho_match,
+        .probe          = psycho_probe,
+};
+
+static int __init psycho_init(void)
+{
+        return of_register_driver(&psycho_driver, &of_bus_type);
+}
+
+subsys_initcall(psycho_init);
diff --git a/arch/sparc64/kernel/pci_sabre.c b/arch/sparc64/kernel/pci_sabre.c
index ade5184e75d..713257b6963 100644
--- a/arch/sparc64/kernel/pci_sabre.c
+++ b/arch/sparc64/kernel/pci_sabre.c
@@ -16,31 +16,15 @@
 #include <asm/apb.h>
 #include <asm/iommu.h>
 #include <asm/irq.h>
-#include <asm/smp.h>
-#include <asm/oplib.h>
 #include <asm/prom.h>
+#include <asm/upa.h>
 
 #include "pci_impl.h"
 #include "iommu_common.h"
+#include "psycho_common.h"
 
-/* All SABRE registers are 64-bits.  The following accessor
- * routines are how they are accessed.  The REG parameter
- * is a physical address.
- */
-#define sabre_read(__reg) \
-({      u64 __ret; \
-        __asm__ __volatile__("ldxa [%1] %2, %0" \
-                             : "=r" (__ret) \
-                             : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \
-                             : "memory"); \
-        __ret; \
-})
-#define sabre_write(__reg, __val) \
-        __asm__ __volatile__("stxa %0, [%1] %2" \
-                             : /* no outputs */ \
-                             : "r" (__val), "r" (__reg), \
-                               "i" (ASI_PHYS_BYPASS_EC_E) \
-                             : "memory")
+#define DRIVER_NAME     "sabre"
+#define PFX             DRIVER_NAME ": "
 
 /* SABRE PCI controller register offsets and definitions. */
 #define SABRE_UE_AFSR           0x0030UL
@@ -208,95 +192,6 @@
 static int hummingbird_p;
 static struct pci_bus *sabre_root_bus;
 
-/* SABRE error handling support. */
-static void sabre_check_iommu_error(struct pci_pbm_info *pbm,
-                                    unsigned long afsr,
-                                    unsigned long afar)
-{
-        struct iommu *iommu = pbm->iommu;
-        unsigned long iommu_tag[16];
-        unsigned long iommu_data[16];
-        unsigned long flags;
-        u64 control;
-        int i;
-
-        spin_lock_irqsave(&iommu->lock, flags);
-        control = sabre_read(iommu->iommu_control);
-        if (control & SABRE_IOMMUCTRL_ERR) {
-                char *type_string;
-
-                /* Clear the error encountered bit.
-                 * NOTE: On Sabre this is write 1 to clear,
-                 *       which is different from Psycho.
-                 */
-                sabre_write(iommu->iommu_control, control);
-                switch((control & SABRE_IOMMUCTRL_ERRSTS) >> 25UL) {
-                case 1:
-                        type_string = "Invalid Error";
-                        break;
-                case 3:
-                        type_string = "ECC Error";
-                        break;
-                default:
-                        type_string = "Unknown";
-                        break;
-                };
-                printk("%s: IOMMU Error, type[%s]\n",
-                       pbm->name, type_string);
-
-                /* Enter diagnostic mode and probe for error'd
-                 * entries in the IOTLB.
-                 */
-                control &= ~(SABRE_IOMMUCTRL_ERRSTS | SABRE_IOMMUCTRL_ERR);
-                sabre_write(iommu->iommu_control,
-                            (control | SABRE_IOMMUCTRL_DENAB));
-                for (i = 0; i < 16; i++) {
-                        unsigned long base = pbm->controller_regs;
-
-                        iommu_tag[i] =
-                                sabre_read(base + SABRE_IOMMU_TAG + (i * 8UL));
-                        iommu_data[i] =
-                                sabre_read(base + SABRE_IOMMU_DATA + (i * 8UL));
-                        sabre_write(base + SABRE_IOMMU_TAG + (i * 8UL), 0);
-                        sabre_write(base + SABRE_IOMMU_DATA + (i * 8UL), 0);
-                }
-                sabre_write(iommu->iommu_control, control);
-
-                for (i = 0; i < 16; i++) {
-                        unsigned long tag, data;
-
-                        tag = iommu_tag[i];
-                        if (!(tag & SABRE_IOMMUTAG_ERR))
-                                continue;
-
-                        data = iommu_data[i];
-                        switch((tag & SABRE_IOMMUTAG_ERRSTS) >> 23UL) {
-                        case 1:
-                                type_string = "Invalid Error";
-                                break;
-                        case 3:
-                                type_string = "ECC Error";
-                                break;
-                        default:
-                                type_string = "Unknown";
-                                break;
-                        };
-                        printk("%s: IOMMU TAG(%d)[RAW(%016lx)error(%s)wr(%d)sz(%dK)vpg(%08lx)]\n",
-                               pbm->name, i, tag, type_string,
-                               ((tag & SABRE_IOMMUTAG_WRITE) ? 1 : 0),
-                               ((tag & SABRE_IOMMUTAG_SIZE) ? 64 : 8),
-                               ((tag & SABRE_IOMMUTAG_VPN) << IOMMU_PAGE_SHIFT));
-                        printk("%s: IOMMU DATA(%d)[RAW(%016lx)valid(%d)used(%d)cache(%d)ppg(%016lx)\n",
-                               pbm->name, i, data,
-                               ((data & SABRE_IOMMUDATA_VALID) ? 1 : 0),
-                               ((data & SABRE_IOMMUDATA_USED) ? 1 : 0),
-                               ((data & SABRE_IOMMUDATA_CACHE) ? 1 : 0),
-                               ((data & SABRE_IOMMUDATA_PPN) << IOMMU_PAGE_SHIFT));
-                }
-        }
-        spin_unlock_irqrestore(&iommu->lock, flags);
-}
-
 static irqreturn_t sabre_ue_intr(int irq, void *dev_id)
 {
         struct pci_pbm_info *pbm = dev_id;
@@ -306,8 +201,8 @@ static irqreturn_t sabre_ue_intr(int irq, void *dev_id)
         int reported;
 
         /* Latch uncorrectable error status. */
-        afar = sabre_read(afar_reg);
-        afsr = sabre_read(afsr_reg);
+        afar = upa_readq(afar_reg);
+        afsr = upa_readq(afsr_reg);
 
         /* Clear the primary/secondary error status bits. */
         error_bits = afsr &
@@ -316,7 +211,7 @@ static irqreturn_t sabre_ue_intr(int irq, void *dev_id)
                  SABRE_UEAFSR_SDTE | SABRE_UEAFSR_PDTE);
         if (!error_bits)
                 return IRQ_NONE;
-        sabre_write(afsr_reg, error_bits);
+        upa_writeq(error_bits, afsr_reg);
 
         /* Log the error. */
         printk("%s: Uncorrectable Error, primary error type[%s%s]\n",
@@ -352,7 +247,7 @@ static irqreturn_t sabre_ue_intr(int irq, void *dev_id)
         printk("]\n");
 
         /* Interrogate IOMMU for error status. */
-        sabre_check_iommu_error(pbm, afsr, afar);
+        psycho_check_iommu_error(pbm, afsr, afar, UE_ERR);
 
         return IRQ_HANDLED;
 }
@@ -366,8 +261,8 @@ static irqreturn_t sabre_ce_intr(int irq, void *dev_id)
         int reported;
 
         /* Latch error status. */
-        afar = sabre_read(afar_reg);
-        afsr = sabre_read(afsr_reg);
+        afar = upa_readq(afar_reg);
+        afsr = upa_readq(afsr_reg);
 
         /* Clear primary/secondary error status bits. */
         error_bits = afsr &
@@ -375,7 +270,7 @@ static irqreturn_t sabre_ce_intr(int irq, void *dev_id)
                  SABRE_CEAFSR_SDRD | SABRE_CEAFSR_SDWR);
         if (!error_bits)
                 return IRQ_NONE;
-        sabre_write(afsr_reg, error_bits);
+        upa_writeq(error_bits, afsr_reg);
 
         /* Log the error. */
         printk("%s: Correctable Error, primary error type[%s]\n",
@@ -413,136 +308,9 @@ static irqreturn_t sabre_ce_intr(int irq, void *dev_id)
         return IRQ_HANDLED;
 }
 
-static irqreturn_t sabre_pcierr_intr_other(struct pci_pbm_info *pbm)
-{
-        unsigned long csr_reg, csr, csr_error_bits;
-        irqreturn_t ret = IRQ_NONE;
-        u16 stat;
-
-        csr_reg = pbm->controller_regs + SABRE_PCICTRL;
-        csr = sabre_read(csr_reg);
-        csr_error_bits =
-                csr & SABRE_PCICTRL_SERR;
-        if (csr_error_bits) {
-                /* Clear the errors.  */
-                sabre_write(csr_reg, csr);
-
-                /* Log 'em.  */
-                if (csr_error_bits & SABRE_PCICTRL_SERR)
-                        printk("%s: PCI SERR signal asserted.\n",
-                               pbm->name);
-                ret = IRQ_HANDLED;
-        }
-        pci_bus_read_config_word(sabre_root_bus, 0,
-                                 PCI_STATUS, &stat);
-        if (stat & (PCI_STATUS_PARITY |
-                    PCI_STATUS_SIG_TARGET_ABORT |
-                    PCI_STATUS_REC_TARGET_ABORT |
-                    PCI_STATUS_REC_MASTER_ABORT |
-                    PCI_STATUS_SIG_SYSTEM_ERROR)) {
-                printk("%s: PCI bus error, PCI_STATUS[%04x]\n",
-                       pbm->name, stat);
-                pci_bus_write_config_word(sabre_root_bus, 0,
-                                          PCI_STATUS, 0xffff);
-                ret = IRQ_HANDLED;
-        }
-        return ret;
-}
-
-static irqreturn_t sabre_pcierr_intr(int irq, void *dev_id)
-{
-        struct pci_pbm_info *pbm = dev_id;
-        unsigned long afsr_reg, afar_reg;
-        unsigned long afsr, afar, error_bits;
-        int reported;
-
-        afsr_reg = pbm->controller_regs + SABRE_PIOAFSR;
-        afar_reg = pbm->controller_regs + SABRE_PIOAFAR;
-
-        /* Latch error status. */
-        afar = sabre_read(afar_reg);
-        afsr = sabre_read(afsr_reg);
-
-        /* Clear primary/secondary error status bits. */
-        error_bits = afsr &
-                (SABRE_PIOAFSR_PMA | SABRE_PIOAFSR_PTA |
-                 SABRE_PIOAFSR_PRTRY | SABRE_PIOAFSR_PPERR |
-                 SABRE_PIOAFSR_SMA | SABRE_PIOAFSR_STA |
-                 SABRE_PIOAFSR_SRTRY | SABRE_PIOAFSR_SPERR);
-        if (!error_bits)
-                return sabre_pcierr_intr_other(pbm);
-        sabre_write(afsr_reg, error_bits);
-
-        /* Log the error. */
-        printk("%s: PCI Error, primary error type[%s]\n",
-               pbm->name,
-               (((error_bits & SABRE_PIOAFSR_PMA) ?
-                 "Master Abort" :
-                 ((error_bits & SABRE_PIOAFSR_PTA) ?
-                  "Target Abort" :
-                  ((error_bits & SABRE_PIOAFSR_PRTRY) ?
-                   "Excessive Retries" :
-                   ((error_bits & SABRE_PIOAFSR_PPERR) ?
-                    "Parity Error" : "???"))))));
-        printk("%s: bytemask[%04lx] was_block(%d)\n",
-               pbm->name,
-               (afsr & SABRE_PIOAFSR_BMSK) >> 32UL,
-               (afsr & SABRE_PIOAFSR_BLK) ? 1 : 0);
-        printk("%s: PCI AFAR [%016lx]\n", pbm->name, afar);
-        printk("%s: PCI Secondary errors [", pbm->name);
-        reported = 0;
-        if (afsr & SABRE_PIOAFSR_SMA) {
-                reported++;
-                printk("(Master Abort)");
-        }
-        if (afsr & SABRE_PIOAFSR_STA) {
-                reported++;
-                printk("(Target Abort)");
-        }
-        if (afsr & SABRE_PIOAFSR_SRTRY) {
-                reported++;
-                printk("(Excessive Retries)");
-        }
-        if (afsr & SABRE_PIOAFSR_SPERR) {
-                reported++;
-                printk("(Parity Error)");
-        }
-        if (!reported)
-                printk("(none)");
-        printk("]\n");
-
-        /* For the error types shown, scan both PCI buses for devices
-         * which have logged that error type.
-         */
-
-        /* If we see a Target Abort, this could be the result of an
-         * IOMMU translation error of some sort.  It is extremely
-         * useful to log this information as usually it indicates
-         * a bug in the IOMMU support code or a PCI device driver.
-         */
-        if (error_bits & (SABRE_PIOAFSR_PTA | SABRE_PIOAFSR_STA)) {
-                sabre_check_iommu_error(pbm, afsr, afar);
-                pci_scan_for_target_abort(pbm, pbm->pci_bus);
-        }
-        if (error_bits & (SABRE_PIOAFSR_PMA | SABRE_PIOAFSR_SMA))
-                pci_scan_for_master_abort(pbm, pbm->pci_bus);
-
-        /* For excessive retries, SABRE/PBM will abort the device
-         * and there is no way to specifically check for excessive
-         * retries in the config space status registers.  So what
-         * we hope is that we'll catch it via the master/target
-         * abort events.
-         */
-
-        if (error_bits & (SABRE_PIOAFSR_PPERR | SABRE_PIOAFSR_SPERR))
-                pci_scan_for_parity_error(pbm, pbm->pci_bus);
-
-        return IRQ_HANDLED;
-}
-
 static void sabre_register_error_handlers(struct pci_pbm_info *pbm)
 {
-        struct device_node *dp = pbm->prom_node;
+        struct device_node *dp = pbm->op->node;
         struct of_device *op;
         unsigned long base = pbm->controller_regs;
         u64 tmp;
@@ -568,33 +336,34 @@ static void sabre_register_error_handlers(struct pci_pbm_info *pbm)
          * registering the handler so that we don't get spurious
          * interrupts.
          */
-        sabre_write(base + SABRE_UE_AFSR,
-                    (SABRE_UEAFSR_PDRD | SABRE_UEAFSR_PDWR |
-                     SABRE_UEAFSR_SDRD | SABRE_UEAFSR_SDWR |
-                     SABRE_UEAFSR_SDTE | SABRE_UEAFSR_PDTE));
+        upa_writeq((SABRE_UEAFSR_PDRD | SABRE_UEAFSR_PDWR |
+                    SABRE_UEAFSR_SDRD | SABRE_UEAFSR_SDWR |
+                    SABRE_UEAFSR_SDTE | SABRE_UEAFSR_PDTE),
+                   base + SABRE_UE_AFSR);
 
         err = request_irq(op->irqs[1], sabre_ue_intr, 0, "SABRE_UE", pbm);
         if (err)
                 printk(KERN_WARNING "%s: Couldn't register UE, err=%d.\n",
                        pbm->name, err);
 
-        sabre_write(base + SABRE_CE_AFSR,
-                    (SABRE_CEAFSR_PDRD | SABRE_CEAFSR_PDWR |
-                     SABRE_CEAFSR_SDRD | SABRE_CEAFSR_SDWR));
+        upa_writeq((SABRE_CEAFSR_PDRD | SABRE_CEAFSR_PDWR |
+                    SABRE_CEAFSR_SDRD | SABRE_CEAFSR_SDWR),
+                   base + SABRE_CE_AFSR);
+
 
         err = request_irq(op->irqs[2], sabre_ce_intr, 0, "SABRE_CE", pbm);
         if (err)
                 printk(KERN_WARNING "%s: Couldn't register CE, err=%d.\n",
                        pbm->name, err);
-        err = request_irq(op->irqs[0], sabre_pcierr_intr, 0,
+        err = request_irq(op->irqs[0], psycho_pcierr_intr, 0,
                           "SABRE_PCIERR", pbm);
         if (err)
                 printk(KERN_WARNING "%s: Couldn't register PCIERR, err=%d.\n",
                        pbm->name, err);
 
-        tmp = sabre_read(base + SABRE_PCICTRL);
+        tmp = upa_readq(base + SABRE_PCICTRL);
         tmp |= SABRE_PCICTRL_ERREN;
-        sabre_write(base + SABRE_PCICTRL, tmp);
+        upa_writeq(tmp, base + SABRE_PCICTRL);
 }
 
 static void apb_init(struct pci_bus *sabre_bus)
@@ -633,7 +402,8 @@ static void apb_init(struct pci_bus *sabre_bus)
         }
 }
 
-static void __init sabre_scan_bus(struct pci_pbm_info *pbm)
+static void __init sabre_scan_bus(struct pci_pbm_info *pbm,
+                                  struct device *parent)
 {
         static int once;
 
@@ -656,12 +426,12 @@ static void __init sabre_scan_bus(struct pci_pbm_info *pbm)
          * to live at bus 0.
          */
         if (once != 0) {
-                prom_printf("SABRE: Multiple controllers unsupported.\n");
-                prom_halt();
+                printk(KERN_ERR PFX "Multiple controllers unsupported.\n");
+                return;
         }
         once++;
 
-        pbm->pci_bus = pci_scan_one_pbm(pbm);
+        pbm->pci_bus = pci_scan_one_pbm(pbm, parent);
         if (!pbm->pci_bus)
                 return;
 
@@ -672,133 +442,58 @@ static void __init sabre_scan_bus(struct pci_pbm_info *pbm)
         sabre_register_error_handlers(pbm);
 }
 
-static int sabre_iommu_init(struct pci_pbm_info *pbm,
-                            int tsbsize, unsigned long dvma_offset,
-                            u32 dma_mask)
-{
-        struct iommu *iommu = pbm->iommu;
-        unsigned long i;
-        u64 control;
-        int err;
-
-        /* Register addresses. */
-        iommu->iommu_control  = pbm->controller_regs + SABRE_IOMMU_CONTROL;
-        iommu->iommu_tsbbase  = pbm->controller_regs + SABRE_IOMMU_TSBBASE;
-        iommu->iommu_flush    = pbm->controller_regs + SABRE_IOMMU_FLUSH;
-        iommu->iommu_tags     = iommu->iommu_flush + (0xa580UL - 0x0210UL);
-        iommu->write_complete_reg = pbm->controller_regs + SABRE_WRSYNC;
-        /* Sabre's IOMMU lacks ctx flushing. */
-        iommu->iommu_ctxflush = 0;
-                                        
-        /* Invalidate TLB Entries. */
-        control = sabre_read(pbm->controller_regs + SABRE_IOMMU_CONTROL);
-        control |= SABRE_IOMMUCTRL_DENAB;
-        sabre_write(pbm->controller_regs + SABRE_IOMMU_CONTROL, control);
-
-        for(i = 0; i < 16; i++) {
-                sabre_write(pbm->controller_regs + SABRE_IOMMU_TAG + (i * 8UL), 0);
-                sabre_write(pbm->controller_regs + SABRE_IOMMU_DATA + (i * 8UL), 0);
-        }
-
-        /* Leave diag mode enabled for full-flushing done
-         * in pci_iommu.c
-         */
-        err = iommu_table_init(iommu, tsbsize * 1024 * 8,
-                               dvma_offset, dma_mask, pbm->numa_node);
-        if (err)
-                return err;
-
-        sabre_write(pbm->controller_regs + SABRE_IOMMU_TSBBASE,
-                    __pa(iommu->page_table));
-
-        control = sabre_read(pbm->controller_regs + SABRE_IOMMU_CONTROL);
-        control &= ~(SABRE_IOMMUCTRL_TSBSZ | SABRE_IOMMUCTRL_TBWSZ);
-        control |= SABRE_IOMMUCTRL_ENAB;
-        switch(tsbsize) {
-        case 64:
-                control |= SABRE_IOMMU_TSBSZ_64K;
-                break;
-        case 128:
-                control |= SABRE_IOMMU_TSBSZ_128K;
-                break;
-        default:
-                prom_printf("iommu_init: Illegal TSB size %d\n", tsbsize);
-                prom_halt();
-                break;
-        }
-        sabre_write(pbm->controller_regs + SABRE_IOMMU_CONTROL, control);
-
-        return 0;
-}
-
-static void __init sabre_pbm_init(struct pci_controller_info *p,
-                                  struct pci_pbm_info *pbm, struct device_node *dp)
+static void __init sabre_pbm_init(struct pci_pbm_info *pbm,
+                                  struct of_device *op)
 {
-        pbm->name = dp->full_name;
-        printk("%s: SABRE PCI Bus Module\n", pbm->name);
-
-        pbm->numa_node = -1;
-
-        pbm->scan_bus = sabre_scan_bus;
-        pbm->pci_ops = &sun4u_pci_ops;
-        pbm->config_space_reg_bits = 8;
-
-        pbm->index = pci_num_pbms++;
-
-        pbm->chip_type = PBM_CHIP_TYPE_SABRE;
-        pbm->parent = p;
-        pbm->prom_node = dp;
-        pci_get_pbm_props(pbm);
-
-        pci_determine_mem_io_space(pbm);
+        psycho_pbm_init_common(pbm, op, "SABRE", PBM_CHIP_TYPE_SABRE);
+        pbm->pci_afsr = pbm->controller_regs + SABRE_PIOAFSR;
+        pbm->pci_afar = pbm->controller_regs + SABRE_PIOAFAR;
+        pbm->pci_csr = pbm->controller_regs + SABRE_PCICTRL;
+        sabre_scan_bus(pbm, &op->dev);
 }
 
-void __init sabre_init(struct device_node *dp, char *model_name)
+static int __devinit sabre_probe(struct of_device *op,
+                                 const struct of_device_id *match)
 {
         const struct linux_prom64_registers *pr_regs;
-        struct pci_controller_info *p;
+        struct device_node *dp = op->node;
         struct pci_pbm_info *pbm;
+        u32 upa_portid, dma_mask;
         struct iommu *iommu;
-        int tsbsize;
+        int tsbsize, err;
         const u32 *vdma;
-        u32 upa_portid, dma_mask;
         u64 clear_irq;
 
-        hummingbird_p = 0;
-        if (!strcmp(model_name, "pci108e,a001"))
-                hummingbird_p = 1;
-        else if (!strcmp(model_name, "SUNW,sabre")) {
-                const char *compat = of_get_property(dp, "compatible", NULL);
-                if (compat && !strcmp(compat, "pci108e,a001"))
-                        hummingbird_p = 1;
-                if (!hummingbird_p) {
-                        struct device_node *dp;
-
-                        /* Of course, Sun has to encode things a thousand
-                         * different ways, inconsistently.
-                         */
-                        for_each_node_by_type(dp, "cpu") {
-                                if (!strcmp(dp->name, "SUNW,UltraSPARC-IIe"))
-                                        hummingbird_p = 1;
-                        }
+        hummingbird_p = (match->data != NULL);
+        if (!hummingbird_p) {
+                struct device_node *cpu_dp;
+
+                /* Of course, Sun has to encode things a thousand
+                 * different ways, inconsistently.
+                 */
+                for_each_node_by_type(cpu_dp, "cpu") {
+                        if (!strcmp(cpu_dp->name, "SUNW,UltraSPARC-IIe"))
+                                hummingbird_p = 1;
                 }
         }
 
-        p = kzalloc(sizeof(*p), GFP_ATOMIC);
-        if (!p)
-                goto fatal_memory_error;
+        err = -ENOMEM;
+        pbm = kzalloc(sizeof(*pbm), GFP_KERNEL);
+        if (!pbm) {
+                printk(KERN_ERR PFX "Cannot allocate pci_pbm_info.\n");
+                goto out_err;
+        }
+
+        iommu = kzalloc(sizeof(*iommu), GFP_KERNEL);
+        if (!iommu) {
+                printk(KERN_ERR PFX "Cannot allocate PBM iommu.\n");
+                goto out_free_controller;
+        }
 
-        iommu = kzalloc(sizeof(*iommu), GFP_ATOMIC);
-        if (!iommu)
-                goto fatal_memory_error;
-        pbm = &p->pbm_A;
         pbm->iommu = iommu;
 
         upa_portid = of_getintprop_default(dp, "upa-portid", 0xff);
 
-        pbm->next = pci_pbm_root;
-        pci_pbm_root = pbm;
-
         pbm->portid = upa_portid;
 
         /*
@@ -806,6 +501,11 @@ void __init sabre_init(struct device_node *dp, char *model_name)
          */
         
         pr_regs = of_get_property(dp, "reg", NULL);
+        err = -ENODEV;
+        if (!pr_regs) {
+                printk(KERN_ERR PFX "No reg property\n");
+                goto out_free_iommu;
+        }
 
         /*
          * First REG in property is base of entire SABRE register space.
@@ -816,22 +516,25 @@ void __init sabre_init(struct device_node *dp, char *model_name)
 
         /* PCI first */
         for (clear_irq = SABRE_ICLR_A_SLOT0; clear_irq < SABRE_ICLR_B_SLOT0 + 0x80; clear_irq += 8)
-                sabre_write(pbm->controller_regs + clear_irq, 0x0UL);
+                upa_writeq(0x0UL, pbm->controller_regs + clear_irq);
 
         /* Then OBIO */
         for (clear_irq = SABRE_ICLR_SCSI; clear_irq < SABRE_ICLR_SCSI + 0x80; clear_irq += 8)
-                sabre_write(pbm->controller_regs + clear_irq, 0x0UL);
+                upa_writeq(0x0UL, pbm->controller_regs + clear_irq);
 
         /* Error interrupts are enabled later after the bus scan. */
-        sabre_write(pbm->controller_regs + SABRE_PCICTRL,
-                    (SABRE_PCICTRL_MRLEN   | SABRE_PCICTRL_SERR |
-                     SABRE_PCICTRL_ARBPARK | SABRE_PCICTRL_AEN));
+        upa_writeq((SABRE_PCICTRL_MRLEN   | SABRE_PCICTRL_SERR |
+                    SABRE_PCICTRL_ARBPARK | SABRE_PCICTRL_AEN),
+                   pbm->controller_regs + SABRE_PCICTRL);
 
         /* Now map in PCI config space for entire SABRE. */
-        pbm->config_space =
-                (pbm->controller_regs + SABRE_CONFIGSPACE);
+        pbm->config_space = pbm->controller_regs + SABRE_CONFIGSPACE;
 
         vdma = of_get_property(dp, "virtual-dma", NULL);
+        if (!vdma) {
+                printk(KERN_ERR PFX "No virtual-dma property\n");
+                goto out_free_iommu;
+        }
 
         dma_mask = vdma[0];
         switch(vdma[1]) {
@@ -849,20 +552,58 @@ void __init sabre_init(struct device_node *dp, char *model_name)
                         tsbsize = 128;
                         break;
                 default:
-                        prom_printf("SABRE: strange virtual-dma size.\n");
-                        prom_halt();
+                        printk(KERN_ERR PFX "Strange virtual-dma size.\n");
+                        goto out_free_iommu;
         }
 
-        if (sabre_iommu_init(pbm, tsbsize, vdma[0], dma_mask))
-                goto fatal_memory_error;
+        err = psycho_iommu_init(pbm, tsbsize, vdma[0], dma_mask, SABRE_WRSYNC);
+        if (err)
+                goto out_free_iommu;
 
         /*
          * Look for APB underneath.
          */
-        sabre_pbm_init(p, pbm, dp);
-        return;
+        sabre_pbm_init(pbm, op);
 
-fatal_memory_error:
-        prom_printf("SABRE: Fatal memory allocation error.\n");
-        prom_halt();
+        pbm->next = pci_pbm_root;
+        pci_pbm_root = pbm;
+
+        dev_set_drvdata(&op->dev, pbm);
+
+        return 0;
+
+out_free_iommu:
+        kfree(pbm->iommu);
+
+out_free_controller:
+        kfree(pbm);
+
+out_err:
+        return err;
+}
+
+static struct of_device_id __initdata sabre_match[] = {
+        {
+                .name = "pci",
+                .compatible = "pci108e,a001",
+                .data = (void *) 1,
+        },
+        {
+                .name = "pci",
+                .compatible = "pci108e,a000",
+        },
+        {},
+};
+
+static struct of_platform_driver sabre_driver = {
+        .name           = DRIVER_NAME,
+        .match_table    = sabre_match,
+        .probe          = sabre_probe,
+};
+
+static int __init sabre_init(void)
+{
+        return of_register_driver(&sabre_driver, &of_bus_type);
 }
+
+subsys_initcall(sabre_init);
diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c
index 9248c6737f0..45d9dba1ba1 100644
--- a/arch/sparc64/kernel/pci_schizo.c
+++ b/arch/sparc64/kernel/pci_schizo.c
@@ -1,6 +1,6 @@
 /* pci_schizo.c: SCHIZO/TOMATILLO specific PCI controller support.
  *
- * Copyright (C) 2001, 2002, 2003, 2007 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 2001, 2002, 2003, 2007, 2008 David S. Miller (davem@davemloft.net)
  */
 
 #include <linux/kernel.h>
@@ -13,32 +13,15 @@
 
 #include <asm/iommu.h>
 #include <asm/irq.h>
-#include <asm/upa.h>
 #include <asm/pstate.h>
 #include <asm/prom.h>
-#include <asm/oplib.h>
+#include <asm/upa.h>
 
 #include "pci_impl.h"
 #include "iommu_common.h"
 
-/* All SCHIZO registers are 64-bits.  The following accessor
- * routines are how they are accessed.  The REG parameter
- * is a physical address.
- */
-#define schizo_read(__reg) \
-({      u64 __ret; \
-        __asm__ __volatile__("ldxa [%1] %2, %0" \
-                             : "=r" (__ret) \
-                             : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \
-                             : "memory"); \
-        __ret; \
-})
-#define schizo_write(__reg, __val) \
-        __asm__ __volatile__("stxa %0, [%1] %2" \
-                             : /* no outputs */ \
-                             : "r" (__val), "r" (__reg), \
-                               "i" (ASI_PHYS_BYPASS_EC_E) \
-                             : "memory")
+#define DRIVER_NAME     "schizo"
+#define PFX             DRIVER_NAME ": "
 
 /* This is a convention that at least Excalibur and Merlin
  * follow.  I suppose the SCHIZO used in Starcat and friends
@@ -163,25 +146,25 @@ static void __schizo_check_stc_error_pbm(struct pci_pbm_info *pbm,
          * invalidating it before it has a chance to reach
          * main memory.
          */
-        control = schizo_read(strbuf->strbuf_control);
-        schizo_write(strbuf->strbuf_control,
-                     (control | SCHIZO_STRBUF_CTRL_DENAB));
+        control = upa_readq(strbuf->strbuf_control);
+        upa_writeq((control | SCHIZO_STRBUF_CTRL_DENAB),
+                   strbuf->strbuf_control);
         for (i = 0; i < 128; i++) {
                 unsigned long val;
 
-                val = schizo_read(err_base + (i * 8UL));
-                schizo_write(err_base + (i * 8UL), 0UL);
+                val = upa_readq(err_base + (i * 8UL));
+                upa_writeq(0UL, err_base + (i * 8UL));
                 stc_error_buf[i] = val;
         }
         for (i = 0; i < 16; i++) {
-                stc_tag_buf[i] = schizo_read(tag_base + (i * 8UL));
-                stc_line_buf[i] = schizo_read(line_base + (i * 8UL));
-                schizo_write(tag_base + (i * 8UL), 0UL);
-                schizo_write(line_base + (i * 8UL), 0UL);
+                stc_tag_buf[i] = upa_readq(tag_base + (i * 8UL));
+                stc_line_buf[i] = upa_readq(line_base + (i * 8UL));
+                upa_writeq(0UL, tag_base + (i * 8UL));
+                upa_writeq(0UL, line_base + (i * 8UL));
         }
 
         /* OK, state is logged, exit diagnostic mode. */
-        schizo_write(strbuf->strbuf_control, control);
+        upa_writeq(control, strbuf->strbuf_control);
 
         for (i = 0; i < 16; i++) {
                 int j, saw_error, first, last;
@@ -258,14 +241,14 @@ static void schizo_check_iommu_error_pbm(struct pci_pbm_info *pbm,
         int i;
 
         spin_lock_irqsave(&iommu->lock, flags);
-        control = schizo_read(iommu->iommu_control);
+        control = upa_readq(iommu->iommu_control);
         if (control & SCHIZO_IOMMU_CTRL_XLTEERR) {
                 unsigned long base;
                 char *type_string;
 
                 /* Clear the error encountered bit. */
                 control &= ~SCHIZO_IOMMU_CTRL_XLTEERR;
-                schizo_write(iommu->iommu_control, control);
+                upa_writeq(control, iommu->iommu_control);
 
                 switch((control & SCHIZO_IOMMU_CTRL_XLTESTAT) >> 25UL) {
                 case 0:
@@ -295,24 +278,24 @@ static void schizo_check_iommu_error_pbm(struct pci_pbm_info *pbm,
                  * get as much diagnostic information to the
                  * console as we can.
                  */
-                schizo_write(iommu->iommu_control,
-                             control | SCHIZO_IOMMU_CTRL_DENAB);
+                upa_writeq(control | SCHIZO_IOMMU_CTRL_DENAB,
+                           iommu->iommu_control);
 
                 base = pbm->pbm_regs;
 
                 for (i = 0; i < 16; i++) {
                         iommu_tag[i] =
-                                schizo_read(base + SCHIZO_IOMMU_TAG + (i * 8UL));
+                                upa_readq(base + SCHIZO_IOMMU_TAG + (i * 8UL));
                         iommu_data[i] =
-                                schizo_read(base + SCHIZO_IOMMU_DATA + (i * 8UL));
+                                upa_readq(base + SCHIZO_IOMMU_DATA + (i * 8UL));
 
                         /* Now clear out the entry. */
-                        schizo_write(base + SCHIZO_IOMMU_TAG + (i * 8UL), 0);
-                        schizo_write(base + SCHIZO_IOMMU_DATA + (i * 8UL), 0);
+                        upa_writeq(0, base + SCHIZO_IOMMU_TAG + (i * 8UL));
+                        upa_writeq(0, base + SCHIZO_IOMMU_DATA + (i * 8UL));
                 }
 
                 /* Leave diagnostic mode. */
-                schizo_write(iommu->iommu_control, control);
+                upa_writeq(control, iommu->iommu_control);
 
                 for (i = 0; i < 16; i++) {
                         unsigned long tag, data;
@@ -357,11 +340,12 @@ static void schizo_check_iommu_error_pbm(struct pci_pbm_info *pbm,
         spin_unlock_irqrestore(&iommu->lock, flags);
 }
 
-static void schizo_check_iommu_error(struct pci_controller_info *p,
+static void schizo_check_iommu_error(struct pci_pbm_info *pbm,
                                      enum schizo_error_type type)
 {
-        schizo_check_iommu_error_pbm(&p->pbm_A, type);
-        schizo_check_iommu_error_pbm(&p->pbm_B, type);
+        schizo_check_iommu_error_pbm(pbm, type);
+        if (pbm->sibling)
+                schizo_check_iommu_error_pbm(pbm->sibling, type);
 }
 
 /* Uncorrectable ECC error status gathering. */
@@ -386,14 +370,13 @@ static void schizo_check_iommu_error(struct pci_controller_info *p,
 static irqreturn_t schizo_ue_intr(int irq, void *dev_id)
 {
         struct pci_pbm_info *pbm = dev_id;
-        struct pci_controller_info *p = pbm->parent;
         unsigned long afsr_reg = pbm->controller_regs + SCHIZO_UE_AFSR;
         unsigned long afar_reg = pbm->controller_regs + SCHIZO_UE_AFAR;
         unsigned long afsr, afar, error_bits;
         int reported, limit;
 
         /* Latch uncorrectable error status. */
-        afar = schizo_read(afar_reg);
+        afar = upa_readq(afar_reg);
 
         /* If either of the error pending bits are set in the
          * AFSR, the error status is being actively updated by
@@ -401,7 +384,7 @@ static irqreturn_t schizo_ue_intr(int irq, void *dev_id)
          */
         limit = 1000;
         do {
-                afsr = schizo_read(afsr_reg);
+                afsr = upa_readq(afsr_reg);
         } while ((afsr & SCHIZO_UEAFSR_ERRPNDG) != 0 && --limit);
 
         /* Clear the primary/secondary error status bits. */
@@ -410,7 +393,7 @@ static irqreturn_t schizo_ue_intr(int irq, void *dev_id)
                  SCHIZO_UEAFSR_SPIO | SCHIZO_UEAFSR_SDMA);
         if (!error_bits)
                 return IRQ_NONE;
-        schizo_write(afsr_reg, error_bits);
+        upa_writeq(error_bits, afsr_reg);
 
         /* Log the error. */
         printk("%s: Uncorrectable Error, primary error type[%s]\n",
@@ -449,7 +432,7 @@ static irqreturn_t schizo_ue_intr(int irq, void *dev_id)
         printk("]\n");
 
         /* Interrogate IOMMU for error status. */
-        schizo_check_iommu_error(p, UE_ERR);
+        schizo_check_iommu_error(pbm, UE_ERR);
 
         return IRQ_HANDLED;
 }
@@ -481,7 +464,7 @@ static irqreturn_t schizo_ce_intr(int irq, void *dev_id)
         int reported, limit;
 
         /* Latch error status. */
-        afar = schizo_read(afar_reg);
+        afar = upa_readq(afar_reg);
 
         /* If either of the error pending bits are set in the
          * AFSR, the error status is being actively updated by
@@ -489,7 +472,7 @@ static irqreturn_t schizo_ce_intr(int irq, void *dev_id)
          */
         limit = 1000;
         do {
-                afsr = schizo_read(afsr_reg);
+                afsr = upa_readq(afsr_reg);
         } while ((afsr & SCHIZO_UEAFSR_ERRPNDG) != 0 && --limit);
 
         /* Clear primary/secondary error status bits. */
@@ -498,7 +481,7 @@ static irqreturn_t schizo_ce_intr(int irq, void *dev_id)
                  SCHIZO_CEAFSR_SPIO | SCHIZO_CEAFSR_SDMA);
         if (!error_bits)
                 return IRQ_NONE;
-        schizo_write(afsr_reg, error_bits);
+        upa_writeq(error_bits, afsr_reg);
 
         /* Log the error. */
         printk("%s: Correctable Error, primary error type[%s]\n",
@@ -600,7 +583,7 @@ static irqreturn_t schizo_pcierr_intr_other(struct pci_pbm_info *pbm)
         u16 stat;
 
         csr_reg = pbm->pbm_regs + SCHIZO_PCI_CTRL;
-        csr = schizo_read(csr_reg);
+        csr = upa_readq(csr_reg);
         csr_error_bits =
                 csr & (SCHIZO_PCICTRL_BUS_UNUS |
                        SCHIZO_PCICTRL_TTO_ERR |
@@ -610,7 +593,7 @@ static irqreturn_t schizo_pcierr_intr_other(struct pci_pbm_info *pbm)
                        SCHIZO_PCICTRL_SERR);
         if (csr_error_bits) {
                 /* Clear the errors.  */
-                schizo_write(csr_reg, csr);
+                upa_writeq(csr, csr_reg);
 
                 /* Log 'em.  */
                 if (csr_error_bits & SCHIZO_PCICTRL_BUS_UNUS)
@@ -650,7 +633,6 @@ static irqreturn_t schizo_pcierr_intr_other(struct pci_pbm_info *pbm)
 static irqreturn_t schizo_pcierr_intr(int irq, void *dev_id)
 {
         struct pci_pbm_info *pbm = dev_id;
-        struct pci_controller_info *p = pbm->parent;
         unsigned long afsr_reg, afar_reg, base;
         unsigned long afsr, afar, error_bits;
         int reported;
@@ -661,8 +643,8 @@ static irqreturn_t schizo_pcierr_intr(int irq, void *dev_id)
         afar_reg = base + SCHIZO_PCI_AFAR;
 
         /* Latch error status. */
-        afar = schizo_read(afar_reg);
-        afsr = schizo_read(afsr_reg);
+        afar = upa_readq(afar_reg);
+        afsr = upa_readq(afsr_reg);
 
         /* Clear primary/secondary error status bits. */
         error_bits = afsr &
@@ -674,7 +656,7 @@ static irqreturn_t schizo_pcierr_intr(int irq, void *dev_id)
                  SCHIZO_PCIAFSR_STTO | SCHIZO_PCIAFSR_SUNUS);
         if (!error_bits)
                 return schizo_pcierr_intr_other(pbm);
-        schizo_write(afsr_reg, error_bits);
+        upa_writeq(error_bits, afsr_reg);
 
         /* Log the error. */
         printk("%s: PCI Error, primary error type[%s]\n",
@@ -744,7 +726,7 @@ static irqreturn_t schizo_pcierr_intr(int irq, void *dev_id)
          * a bug in the IOMMU support code or a PCI device driver.
          */
         if (error_bits & (SCHIZO_PCIAFSR_PTA | SCHIZO_PCIAFSR_STA)) {
-                schizo_check_iommu_error(p, PCI_ERR);
+                schizo_check_iommu_error(pbm, PCI_ERR);
                 pci_scan_for_target_abort(pbm, pbm->pci_bus);
         }
         if (error_bits & (SCHIZO_PCIAFSR_PMA | SCHIZO_PCIAFSR_SMA))
@@ -805,12 +787,11 @@ static irqreturn_t schizo_pcierr_intr(int irq, void *dev_id)
 static irqreturn_t schizo_safarierr_intr(int irq, void *dev_id)
 {
         struct pci_pbm_info *pbm = dev_id;
-        struct pci_controller_info *p = pbm->parent;
         u64 errlog;
 
-        errlog = schizo_read(pbm->controller_regs + SCHIZO_SAFARI_ERRLOG);
-        schizo_write(pbm->controller_regs + SCHIZO_SAFARI_ERRLOG,
-                     errlog & ~(SAFARI_ERRLOG_ERROUT));
+        errlog = upa_readq(pbm->controller_regs + SCHIZO_SAFARI_ERRLOG);
+        upa_writeq(errlog & ~(SAFARI_ERRLOG_ERROUT),
+                   pbm->controller_regs + SCHIZO_SAFARI_ERRLOG);
 
         if (!(errlog & BUS_ERROR_UNMAP)) {
                 printk("%s: Unexpected Safari/JBUS error interrupt, errlog[%016lx]\n",
@@ -821,7 +802,7 @@ static irqreturn_t schizo_safarierr_intr(int irq, void *dev_id)
 
         printk("%s: Safari/JBUS interrupt, UNMAPPED error, interrogating IOMMUs.\n",
                pbm->name);
-        schizo_check_iommu_error(p, SAFARI_ERR);
+        schizo_check_iommu_error(pbm, SAFARI_ERR);
 
         return IRQ_HANDLED;
 }
@@ -863,7 +844,7 @@ static int pbm_routes_this_ino(struct pci_pbm_info *pbm, u32 ino)
  */
 static void tomatillo_register_error_handlers(struct pci_pbm_info *pbm)
 {
-        struct of_device *op = of_find_device_by_node(pbm->prom_node);
+        struct of_device *op = of_find_device_by_node(pbm->op->node);
         u64 tmp, err_mask, err_no_mask;
         int err;
 
@@ -910,10 +891,9 @@ static void tomatillo_register_error_handlers(struct pci_pbm_info *pbm)
         }
 
         /* Enable UE and CE interrupts for controller. */
-        schizo_write(pbm->controller_regs + SCHIZO_ECC_CTRL,
-                     (SCHIZO_ECCCTRL_EE |
-                      SCHIZO_ECCCTRL_UE |
-                      SCHIZO_ECCCTRL_CE));
+        upa_writeq((SCHIZO_ECCCTRL_EE |
+                    SCHIZO_ECCCTRL_UE |
+                    SCHIZO_ECCCTRL_CE), pbm->controller_regs + SCHIZO_ECC_CTRL);
 
         /* Enable PCI Error interrupts and clear error
          * bits.
@@ -926,10 +906,10 @@ static void tomatillo_register_error_handlers(struct pci_pbm_info *pbm)
 
         err_no_mask = SCHIZO_PCICTRL_DTO_ERR;
 
-        tmp = schizo_read(pbm->pbm_regs + SCHIZO_PCI_CTRL);
+        tmp = upa_readq(pbm->pbm_regs + SCHIZO_PCI_CTRL);
         tmp |= err_mask;
         tmp &= ~err_no_mask;
-        schizo_write(pbm->pbm_regs + SCHIZO_PCI_CTRL, tmp);
+        upa_writeq(tmp, pbm->pbm_regs + SCHIZO_PCI_CTRL);
 
         err_mask = (SCHIZO_PCIAFSR_PMA | SCHIZO_PCIAFSR_PTA |
                     SCHIZO_PCIAFSR_PRTRY | SCHIZO_PCIAFSR_PPERR |
@@ -938,7 +918,7 @@ static void tomatillo_register_error_handlers(struct pci_pbm_info *pbm)
                     SCHIZO_PCIAFSR_SRTRY | SCHIZO_PCIAFSR_SPERR |
                     SCHIZO_PCIAFSR_STTO);
 
-        schizo_write(pbm->pbm_regs + SCHIZO_PCI_AFSR, err_mask);
+        upa_writeq(err_mask, pbm->pbm_regs + SCHIZO_PCI_AFSR);
 
         err_mask = (BUS_ERROR_BADCMD | BUS_ERROR_SNOOP_GR |
                     BUS_ERROR_SNOOP_PCI | BUS_ERROR_SNOOP_RD |
@@ -950,16 +930,16 @@ static void tomatillo_register_error_handlers(struct pci_pbm_info *pbm)
                     BUS_ERROR_APERR | BUS_ERROR_UNMAP |
                     BUS_ERROR_BUSERR | BUS_ERROR_TIMEOUT);
 
-        schizo_write(pbm->controller_regs + SCHIZO_SAFARI_ERRCTRL,
-                     (SCHIZO_SAFERRCTRL_EN | err_mask));
+        upa_writeq((SCHIZO_SAFERRCTRL_EN | err_mask),
+                   pbm->controller_regs + SCHIZO_SAFARI_ERRCTRL);
 
-        schizo_write(pbm->controller_regs + SCHIZO_SAFARI_IRQCTRL,
-                     (SCHIZO_SAFIRQCTRL_EN | (BUS_ERROR_UNMAP)));
+        upa_writeq((SCHIZO_SAFIRQCTRL_EN | (BUS_ERROR_UNMAP)),
+                   pbm->controller_regs + SCHIZO_SAFARI_IRQCTRL);
 }
 
 static void schizo_register_error_handlers(struct pci_pbm_info *pbm)
 {
-        struct of_device *op = of_find_device_by_node(pbm->prom_node);
+        struct of_device *op = of_find_device_by_node(pbm->op->node);
         u64 tmp, err_mask, err_no_mask;
         int err;
 
@@ -1006,10 +986,9 @@ static void schizo_register_error_handlers(struct pci_pbm_info *pbm)
         }
 
         /* Enable UE and CE interrupts for controller. */
-        schizo_write(pbm->controller_regs + SCHIZO_ECC_CTRL,
-                     (SCHIZO_ECCCTRL_EE |
-                      SCHIZO_ECCCTRL_UE |
-                      SCHIZO_ECCCTRL_CE));
+        upa_writeq((SCHIZO_ECCCTRL_EE |
+                    SCHIZO_ECCCTRL_UE |
+                    SCHIZO_ECCCTRL_CE), pbm->controller_regs + SCHIZO_ECC_CTRL);
 
         err_mask = (SCHIZO_PCICTRL_BUS_UNUS |
                     SCHIZO_PCICTRL_ESLCK |
@@ -1025,18 +1004,18 @@ static void schizo_register_error_handlers(struct pci_pbm_info *pbm)
         /* Enable PCI Error interrupts and clear error
          * bits for each PBM.
          */
-        tmp = schizo_read(pbm->pbm_regs + SCHIZO_PCI_CTRL);
+        tmp = upa_readq(pbm->pbm_regs + SCHIZO_PCI_CTRL);
         tmp |= err_mask;
         tmp &= ~err_no_mask;
-        schizo_write(pbm->pbm_regs + SCHIZO_PCI_CTRL, tmp);
+        upa_writeq(tmp, pbm->pbm_regs + SCHIZO_PCI_CTRL);
 
-        schizo_write(pbm->pbm_regs + SCHIZO_PCI_AFSR,
-                     (SCHIZO_PCIAFSR_PMA | SCHIZO_PCIAFSR_PTA |
-                      SCHIZO_PCIAFSR_PRTRY | SCHIZO_PCIAFSR_PPERR |
-                      SCHIZO_PCIAFSR_PTTO | SCHIZO_PCIAFSR_PUNUS |
-                      SCHIZO_PCIAFSR_SMA | SCHIZO_PCIAFSR_STA |
-                      SCHIZO_PCIAFSR_SRTRY | SCHIZO_PCIAFSR_SPERR |
-                      SCHIZO_PCIAFSR_STTO | SCHIZO_PCIAFSR_SUNUS));
+        upa_writeq((SCHIZO_PCIAFSR_PMA | SCHIZO_PCIAFSR_PTA |
+                    SCHIZO_PCIAFSR_PRTRY | SCHIZO_PCIAFSR_PPERR |
+                    SCHIZO_PCIAFSR_PTTO | SCHIZO_PCIAFSR_PUNUS |
+                    SCHIZO_PCIAFSR_SMA | SCHIZO_PCIAFSR_STA |
+                    SCHIZO_PCIAFSR_SRTRY | SCHIZO_PCIAFSR_SPERR |
+                    SCHIZO_PCIAFSR_STTO | SCHIZO_PCIAFSR_SUNUS),
+                   pbm->pbm_regs + SCHIZO_PCI_AFSR);
 
         /* Make all Safari error conditions fatal except unmapped
          * errors which we make generate interrupts.
@@ -1063,8 +1042,8 @@ static void schizo_register_error_handlers(struct pci_pbm_info *pbm)
                       BUS_ERROR_CPU0PS | BUS_ERROR_CPU0PB);
 #endif
 
-        schizo_write(pbm->controller_regs + SCHIZO_SAFARI_ERRCTRL,
-                     (SCHIZO_SAFERRCTRL_EN | err_mask));
+        upa_writeq((SCHIZO_SAFERRCTRL_EN | err_mask),
+                   pbm->controller_regs + SCHIZO_SAFARI_ERRCTRL);
 }
 
 static void pbm_config_busmastering(struct pci_pbm_info *pbm)
@@ -1084,14 +1063,15 @@ static void pbm_config_busmastering(struct pci_pbm_info *pbm)
         pci_config_write8(addr, 64);
 }
 
-static void __init schizo_scan_bus(struct pci_pbm_info *pbm)
+static void __devinit schizo_scan_bus(struct pci_pbm_info *pbm,
+                                      struct device *parent)
 {
         pbm_config_busmastering(pbm);
         pbm->is_66mhz_capable =
-                (of_find_property(pbm->prom_node, "66mhz-capable", NULL)
+                (of_find_property(pbm->op->node, "66mhz-capable", NULL)
                  != NULL);
 
-        pbm->pci_bus = pci_scan_one_pbm(pbm);
+        pbm->pci_bus = pci_scan_one_pbm(pbm, parent);
 
         if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO)
                 tomatillo_register_error_handlers(pbm);
@@ -1133,12 +1113,12 @@ static void schizo_pbm_strbuf_init(struct pci_pbm_info *pbm)
          * streaming buffer and leave the rerun-disable
          * setting however OBP set it.
          */
-        control = schizo_read(pbm->stc.strbuf_control);
+        control = upa_readq(pbm->stc.strbuf_control);
         control &= ~(SCHIZO_STRBUF_CTRL_LPTR |
                      SCHIZO_STRBUF_CTRL_LENAB |
                      SCHIZO_STRBUF_CTRL_DENAB);
         control |= SCHIZO_STRBUF_CTRL_ENAB;
-        schizo_write(pbm->stc.strbuf_control, control);
+        upa_writeq(control, pbm->stc.strbuf_control);
 
         pbm->stc.strbuf_enabled = 1;
 }
@@ -1150,24 +1130,17 @@ static void schizo_pbm_strbuf_init(struct pci_pbm_info *pbm)
 
 static int schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
 {
-        struct iommu *iommu = pbm->iommu;
+        static const u32 vdma_default[] = { 0xc0000000, 0x40000000 };
         unsigned long i, tagbase, database;
-        struct property *prop;
-        u32 vdma[2], dma_mask;
+        struct iommu *iommu = pbm->iommu;
         int tsbsize, err;
+        const u32 *vdma;
+        u32 dma_mask;
         u64 control;
 
-        prop = of_find_property(pbm->prom_node, "virtual-dma", NULL);
-        if (prop) {
-                u32 *val = prop->value;
-
-                vdma[0] = val[0];
-                vdma[1] = val[1];
-        } else {
-                /* No property, use default values. */
-                vdma[0] = 0xc0000000;
-                vdma[1] = 0x40000000;
-        }
+        vdma = of_get_property(pbm->op->node, "virtual-dma", NULL);
+        if (!vdma)
+                vdma = vdma_default;
 
         dma_mask = vdma[0];
         switch (vdma[1]) {
@@ -1187,9 +1160,9 @@ static int schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
                         break;
 
                 default:
-                        prom_printf("SCHIZO: strange virtual-dma size.\n");
-                        prom_halt();
-        };
+                        printk(KERN_ERR PFX "Strange virtual-dma size.\n");
+                        return -EINVAL;
+        }
 
         /* Register addresses, SCHIZO has iommu ctx flushing. */
         iommu->iommu_control  = pbm->pbm_regs + SCHIZO_IOMMU_CONTROL;
@@ -1206,15 +1179,15 @@ static int schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
         /*
          * Invalidate TLB Entries.
          */
-        control = schizo_read(iommu->iommu_control);
+        control = upa_readq(iommu->iommu_control);
         control |= SCHIZO_IOMMU_CTRL_DENAB;
-        schizo_write(iommu->iommu_control, control);
+        upa_writeq(control, iommu->iommu_control);
 
         tagbase = SCHIZO_IOMMU_TAG, database = SCHIZO_IOMMU_DATA;
 
-        for(i = 0; i < 16; i++) {
-                schizo_write(pbm->pbm_regs + tagbase + (i * 8UL), 0);
-                schizo_write(pbm->pbm_regs + database + (i * 8UL), 0);
+        for (i = 0; i < 16; i++) {
+                upa_writeq(0, pbm->pbm_regs + tagbase + (i * 8UL));
+                upa_writeq(0, pbm->pbm_regs + database + (i * 8UL));
         }
 
         /* Leave diag mode enabled for full-flushing done
@@ -1222,12 +1195,14 @@ static int schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
          */
         err = iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask,
                                pbm->numa_node);
-        if (err)
+        if (err) {
+                printk(KERN_ERR PFX "iommu_table_init() fails with %d\n", err);
                 return err;
+        }
 
-        schizo_write(iommu->iommu_tsbbase, __pa(iommu->page_table));
+        upa_writeq(__pa(iommu->page_table), iommu->iommu_tsbbase);
 
-        control = schizo_read(iommu->iommu_control);
+        control = upa_readq(iommu->iommu_control);
         control &= ~(SCHIZO_IOMMU_CTRL_TSBSZ | SCHIZO_IOMMU_CTRL_TBWSZ);
         switch (tsbsize) {
         case 64:
@@ -1236,10 +1211,10 @@ static int schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
         case 128:
                 control |= SCHIZO_IOMMU_TSBSZ_128K;
                 break;
-        };
+        }
 
         control |= SCHIZO_IOMMU_CTRL_ENAB;
-        schizo_write(iommu->iommu_control, control);
+        upa_writeq(control, iommu->iommu_control);
 
         return 0;
 }
@@ -1280,12 +1255,11 @@ static int schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
 
 static void schizo_pbm_hw_init(struct pci_pbm_info *pbm)
 {
-        struct property *prop;
         u64 tmp;
 
-        schizo_write(pbm->pbm_regs + SCHIZO_PCI_IRQ_RETRY, 5);
+        upa_writeq(5, pbm->pbm_regs + SCHIZO_PCI_IRQ_RETRY);
 
-        tmp = schizo_read(pbm->pbm_regs + SCHIZO_PCI_CTRL);
+        tmp = upa_readq(pbm->pbm_regs + SCHIZO_PCI_CTRL);
 
         /* Enable arbiter for all PCI slots.  */
         tmp |= 0xff;
@@ -1294,8 +1268,7 @@ static void schizo_pbm_hw_init(struct pci_pbm_info *pbm)
             pbm->chip_version >= 0x2)
                 tmp |= 0x3UL << SCHIZO_PCICTRL_PTO_SHIFT;
 
-        prop = of_find_property(pbm->prom_node, "no-bus-parking", NULL);
-        if (!prop)
+        if (!of_find_property(pbm->op->node, "no-bus-parking", NULL))
                 tmp |= SCHIZO_PCICTRL_PARK;
         else
                 tmp &= ~SCHIZO_PCICTRL_PARK;
@@ -1311,13 +1284,13 @@ static void schizo_pbm_hw_init(struct pci_pbm_info *pbm)
                         SCHIZO_PCICTRL_RDO_PREF |
                         SCHIZO_PCICTRL_RDL_PREF);
 
-        schizo_write(pbm->pbm_regs + SCHIZO_PCI_CTRL, tmp);
+        upa_writeq(tmp, pbm->pbm_regs + SCHIZO_PCI_CTRL);
 
-        tmp = schizo_read(pbm->pbm_regs + SCHIZO_PCI_DIAG);
+        tmp = upa_readq(pbm->pbm_regs + SCHIZO_PCI_DIAG);
         tmp &= ~(SCHIZO_PCIDIAG_D_RTRYARB |
                  SCHIZO_PCIDIAG_D_RETRY |
                  SCHIZO_PCIDIAG_D_INTSYNC);
-        schizo_write(pbm->pbm_regs + SCHIZO_PCI_DIAG, tmp);
+        upa_writeq(tmp, pbm->pbm_regs + SCHIZO_PCI_DIAG);
 
         if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO) {
                 /* Clear prefetch lengths to workaround a bug in
@@ -1329,17 +1302,16 @@ static void schizo_pbm_hw_init(struct pci_pbm_info *pbm)
                        TOMATILLO_IOC_RDONE_CPENAB |
                        TOMATILLO_IOC_RDLINE_CPENAB);
 
-                schizo_write(pbm->pbm_regs + TOMATILLO_PCI_IOC_CSR,
-                             tmp);
+                upa_writeq(tmp, pbm->pbm_regs + TOMATILLO_PCI_IOC_CSR);
         }
 }
 
-static int __init schizo_pbm_init(struct pci_controller_info *p,
-                                  struct device_node *dp, u32 portid,
-                                  int chip_type)
+static int __devinit schizo_pbm_init(struct pci_pbm_info *pbm,
+                                     struct of_device *op, u32 portid,
+                                     int chip_type)
 {
         const struct linux_prom64_registers *regs;
-        struct pci_pbm_info *pbm;
+        struct device_node *dp = op->node;
         const char *chipset_name;
         int is_pbm_a, err;
 
@@ -1372,25 +1344,19 @@ static int __init schizo_pbm_init(struct pci_controller_info *p,
         regs = of_get_property(dp, "reg", NULL);
 
         is_pbm_a = ((regs[0].phys_addr & 0x00700000) == 0x00600000);
-        if (is_pbm_a)
-                pbm = &p->pbm_A;
-        else
-                pbm = &p->pbm_B;
 
         pbm->next = pci_pbm_root;
         pci_pbm_root = pbm;
 
         pbm->numa_node = -1;
 
-        pbm->scan_bus = schizo_scan_bus;
         pbm->pci_ops = &sun4u_pci_ops;
         pbm->config_space_reg_bits = 8;
 
         pbm->index = pci_num_pbms++;
 
         pbm->portid = portid;
-        pbm->parent = p;
-        pbm->prom_node = dp;
+        pbm->op = op;
 
         pbm->chip_type = chip_type;
         pbm->chip_version = of_getintprop_default(dp, "version#", 0);
@@ -1420,6 +1386,8 @@ static int __init schizo_pbm_init(struct pci_controller_info *p,
 
         schizo_pbm_strbuf_init(pbm);
 
+        schizo_scan_bus(pbm, &op->dev);
+
         return 0;
 }
 
@@ -1433,62 +1401,104 @@ static inline int portid_compare(u32 x, u32 y, int chip_type)
         return (x == y);
 }
 
-static void __init __schizo_init(struct device_node *dp, char *model_name,
-                                 int chip_type)
+static struct pci_pbm_info * __devinit schizo_find_sibling(u32 portid,
+                                                           int chip_type)
 {
-        struct pci_controller_info *p;
+        struct pci_pbm_info *pbm;
+
+        for (pbm = pci_pbm_root; pbm; pbm = pbm->next) {
+                if (portid_compare(pbm->portid, portid, chip_type))
+                        return pbm;
+        }
+        return NULL;
+}
+
+static int __devinit __schizo_init(struct of_device *op, unsigned long chip_type)
+{
+        struct device_node *dp = op->node;
         struct pci_pbm_info *pbm;
         struct iommu *iommu;
         u32 portid;
+        int err;
 
         portid = of_getintprop_default(dp, "portid", 0xff);
 
-        for (pbm = pci_pbm_root; pbm; pbm = pbm->next) {
-                if (portid_compare(pbm->portid, portid, chip_type)) {
-                        if (schizo_pbm_init(pbm->parent, dp,
-                                            portid, chip_type))
-                                goto fatal_memory_error;
-                        return;
-                }
+        err = -ENOMEM;
+        pbm = kzalloc(sizeof(*pbm), GFP_KERNEL);
+        if (!pbm) {
+                printk(KERN_ERR PFX "Cannot allocate pci_pbm_info.\n");
+                goto out_err;
+        }
+
+        pbm->sibling = schizo_find_sibling(portid, chip_type);
+
+        iommu = kzalloc(sizeof(struct iommu), GFP_KERNEL);
+        if (!iommu) {
+                printk(KERN_ERR PFX "Cannot allocate PBM A iommu.\n");
+                goto out_free_pbm;
         }
 
-        p = kzalloc(sizeof(struct pci_controller_info), GFP_ATOMIC);
-        if (!p)
-                goto fatal_memory_error;
+        pbm->iommu = iommu;
 
-        iommu = kzalloc(sizeof(struct iommu), GFP_ATOMIC);
-        if (!iommu)
-                goto fatal_memory_error;
+        if (schizo_pbm_init(pbm, op, portid, chip_type))
+                goto out_free_iommu;
 
-        p->pbm_A.iommu = iommu;
+        if (pbm->sibling)
+                pbm->sibling->sibling = pbm;
 
-        iommu = kzalloc(sizeof(struct iommu), GFP_ATOMIC);
-        if (!iommu)
-                goto fatal_memory_error;
+        dev_set_drvdata(&op->dev, pbm);
 
-        p->pbm_B.iommu = iommu;
+        return 0;
 
-        if (schizo_pbm_init(p, dp, portid, chip_type))
-                goto fatal_memory_error;
+out_free_iommu:
+        kfree(pbm->iommu);
 
-        return;
+out_free_pbm:
+        kfree(pbm);
 
-fatal_memory_error:
-        prom_printf("SCHIZO: Fatal memory allocation error.\n");
-        prom_halt();
+out_err:
+        return err;
 }
 
-void __init schizo_init(struct device_node *dp, char *model_name)
+static int __devinit schizo_probe(struct of_device *op,
+                                  const struct of_device_id *match)
 {
-        __schizo_init(dp, model_name, PBM_CHIP_TYPE_SCHIZO);
+        return __schizo_init(op, (unsigned long) match->data);
 }
 
-void __init schizo_plus_init(struct device_node *dp, char *model_name)
-{
-        __schizo_init(dp, model_name, PBM_CHIP_TYPE_SCHIZO_PLUS);
-}
+/* The ordering of this table is very important.  Some Tomatillo
+ * nodes announce that they are compatible with both pci108e,a801
+ * and pci108e,8001.  So list the chips in reverse chronological
+ * order.
+ */
+static struct of_device_id __initdata schizo_match[] = {
+        {
+                .name = "pci",
+                .compatible = "pci108e,a801",
+                .data = (void *) PBM_CHIP_TYPE_TOMATILLO,
+        },
+        {
+                .name = "pci",
+                .compatible = "pci108e,8002",
+                .data = (void *) PBM_CHIP_TYPE_SCHIZO_PLUS,
+        },
+        {
+                .name = "pci",
+                .compatible = "pci108e,8001",
+                .data = (void *) PBM_CHIP_TYPE_SCHIZO,
+        },
+        {},
+};
 
-void __init tomatillo_init(struct device_node *dp, char *model_name)
+static struct of_platform_driver schizo_driver = {
+        .name           = DRIVER_NAME,
+        .match_table    = schizo_match,
+        .probe          = schizo_probe,
+};
+
+static int __init schizo_init(void)
 {
-        __schizo_init(dp, model_name, PBM_CHIP_TYPE_TOMATILLO);
+        return of_register_driver(&schizo_driver, &of_bus_type);
 }
+
+subsys_initcall(schizo_init);
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index a104c80d319..e86c73ec167 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -13,12 +13,10 @@
 #include <linux/irq.h>
 #include <linux/msi.h>
 #include <linux/log2.h>
+#include <linux/of_device.h>
 
 #include <asm/iommu.h>
 #include <asm/irq.h>
-#include <asm/upa.h>
-#include <asm/pstate.h>
-#include <asm/oplib.h>
 #include <asm/hypervisor.h>
 #include <asm/prom.h>
 
@@ -27,6 +25,9 @@
 
 #include "pci_sun4v.h"
 
+#define DRIVER_NAME     "pci_sun4v"
+#define PFX             DRIVER_NAME ": "
+
 static unsigned long vpci_major = 1;
 static unsigned long vpci_minor = 1;
 
@@ -41,6 +42,7 @@ struct iommu_batch {
 };
 
 static DEFINE_PER_CPU(struct iommu_batch, iommu_batch);
+static int iommu_batch_initialized;
 
 /* Interrupts must be disabled.  */
 static inline void iommu_batch_start(struct device *dev, unsigned long prot, unsigned long entry)
@@ -542,15 +544,16 @@ static const struct dma_ops sun4v_dma_ops = {
         .sync_sg_for_cpu                = dma_4v_sync_sg_for_cpu,
 };
 
-static void __init pci_sun4v_scan_bus(struct pci_pbm_info *pbm)
+static void __init pci_sun4v_scan_bus(struct pci_pbm_info *pbm,
+                                      struct device *parent)
 {
         struct property *prop;
         struct device_node *dp;
 
-        dp = pbm->prom_node;
+        dp = pbm->op->node;
         prop = of_find_property(dp, "66mhz-capable", NULL);
         pbm->is_66mhz_capable = (prop != NULL);
-        pbm->pci_bus = pci_scan_one_pbm(pbm);
+        pbm->pci_bus = pci_scan_one_pbm(pbm, parent);
 
         /* XXX register error interrupt handlers XXX */
 }
@@ -583,29 +586,22 @@ static unsigned long __init probe_existing_entries(struct pci_pbm_info *pbm,
         return cnt;
 }
 
-static void __init pci_sun4v_iommu_init(struct pci_pbm_info *pbm)
+static int __init pci_sun4v_iommu_init(struct pci_pbm_info *pbm)
 {
+        static const u32 vdma_default[] = { 0x80000000, 0x80000000 };
         struct iommu *iommu = pbm->iommu;
-        struct property *prop;
         unsigned long num_tsb_entries, sz, tsbsize;
-        u32 vdma[2], dma_mask, dma_offset;
-
-        prop = of_find_property(pbm->prom_node, "virtual-dma", NULL);
-        if (prop) {
-                u32 *val = prop->value;
-
-                vdma[0] = val[0];
-                vdma[1] = val[1];
-        } else {
-                /* No property, use default values. */
-                vdma[0] = 0x80000000;
-                vdma[1] = 0x80000000;
-        }
+        u32 dma_mask, dma_offset;
+        const u32 *vdma;
+
+        vdma = of_get_property(pbm->op->node, "virtual-dma", NULL);
+        if (!vdma)
+                vdma = vdma_default;
 
         if ((vdma[0] | vdma[1]) & ~IO_PAGE_MASK) {
-                prom_printf("PCI-SUN4V: strange virtual-dma[%08x:%08x].\n",
-                            vdma[0], vdma[1]);
-                prom_halt();
+                printk(KERN_ERR PFX "Strange virtual-dma[%08x:%08x].\n",
+                       vdma[0], vdma[1]);
+                return -EINVAL;
         };
 
         dma_mask = (roundup_pow_of_two(vdma[1]) - 1UL);
@@ -625,8 +621,8 @@ static void __init pci_sun4v_iommu_init(struct pci_pbm_info *pbm)
         sz = (sz + 7UL) & ~7UL;
         iommu->arena.map = kzalloc(sz, GFP_KERNEL);
         if (!iommu->arena.map) {
-                prom_printf("PCI_IOMMU: Error, kmalloc(arena.map) failed.\n");
-                prom_halt();
+                printk(KERN_ERR PFX "Error, kmalloc(arena.map) failed.\n");
+                return -ENOMEM;
         }
         iommu->arena.limit = num_tsb_entries;
 
@@ -634,6 +630,8 @@ static void __init pci_sun4v_iommu_init(struct pci_pbm_info *pbm)
         if (sz)
                 printk("%s: Imported %lu TSB entries from OBP\n",
                        pbm->name, sz);
+
+        return 0;
 }
 
 #ifdef CONFIG_PCI_MSI
@@ -890,29 +888,20 @@ static void pci_sun4v_msi_init(struct pci_pbm_info *pbm)
 }
 #endif /* !(CONFIG_PCI_MSI) */
 
-static void __init pci_sun4v_pbm_init(struct pci_controller_info *p,
-                                      struct device_node *dp, u32 devhandle)
+static int __init pci_sun4v_pbm_init(struct pci_pbm_info *pbm,
+                                     struct of_device *op, u32 devhandle)
 {
-        struct pci_pbm_info *pbm;
-
-        if (devhandle & 0x40)
-                pbm = &p->pbm_B;
-        else
-                pbm = &p->pbm_A;
-
-        pbm->next = pci_pbm_root;
-        pci_pbm_root = pbm;
+        struct device_node *dp = op->node;
+        int err;
 
         pbm->numa_node = of_node_to_nid(dp);
 
-        pbm->scan_bus = pci_sun4v_scan_bus;
         pbm->pci_ops = &sun4v_pci_ops;
         pbm->config_space_reg_bits = 12;
 
         pbm->index = pci_num_pbms++;
 
-        pbm->parent = p;
-        pbm->prom_node = dp;
+        pbm->op = op;
 
         pbm->devhandle = devhandle;
 
@@ -924,82 +913,120 @@ static void __init pci_sun4v_pbm_init(struct pci_controller_info *p,
         pci_determine_mem_io_space(pbm);
 
         pci_get_pbm_props(pbm);
-        pci_sun4v_iommu_init(pbm);
+
+        err = pci_sun4v_iommu_init(pbm);
+        if (err)
+                return err;
+
         pci_sun4v_msi_init(pbm);
+
+        pci_sun4v_scan_bus(pbm, &op->dev);
+
+        pbm->next = pci_pbm_root;
+        pci_pbm_root = pbm;
+
+        return 0;
 }
 
-void __init sun4v_pci_init(struct device_node *dp, char *model_name)
+static int __devinit pci_sun4v_probe(struct of_device *op,
+                                     const struct of_device_id *match)
 {
+        const struct linux_prom64_registers *regs;
         static int hvapi_negotiated = 0;
-        struct pci_controller_info *p;
         struct pci_pbm_info *pbm;
+        struct device_node *dp;
         struct iommu *iommu;
-        struct property *prop;
-        struct linux_prom64_registers *regs;
         u32 devhandle;
-        int i;
+        int i, err;
+
+        dp = op->node;
 
         if (!hvapi_negotiated++) {
-                int err = sun4v_hvapi_register(HV_GRP_PCI,
-                                               vpci_major,
-                                               &vpci_minor);
+                err = sun4v_hvapi_register(HV_GRP_PCI,
+                                           vpci_major,
+                                           &vpci_minor);
 
                 if (err) {
-                        prom_printf("SUN4V_PCI: Could not register hvapi, "
-                                    "err=%d\n", err);
-                        prom_halt();
+                        printk(KERN_ERR PFX "Could not register hvapi, "
+                               "err=%d\n", err);
+                        return err;
                 }
-                printk("SUN4V_PCI: Registered hvapi major[%lu] minor[%lu]\n",
+                printk(KERN_INFO PFX "Registered hvapi major[%lu] minor[%lu]\n",
                        vpci_major, vpci_minor);
 
                 dma_ops = &sun4v_dma_ops;
         }
 
-        prop = of_find_property(dp, "reg", NULL);
-        if (!prop) {
-                prom_printf("SUN4V_PCI: Could not find config registers\n");
-                prom_halt();
+        regs = of_get_property(dp, "reg", NULL);
+        err = -ENODEV;
+        if (!regs) {
+                printk(KERN_ERR PFX "Could not find config registers\n");
+                goto out_err;
         }
-        regs = prop->value;
-
         devhandle = (regs->phys_addr >> 32UL) & 0x0fffffff;
 
-        for (pbm = pci_pbm_root; pbm; pbm = pbm->next) {
-                if (pbm->devhandle == (devhandle ^ 0x40)) {
-                        pci_sun4v_pbm_init(pbm->parent, dp, devhandle);
-                        return;
+        err = -ENOMEM;
+        if (!iommu_batch_initialized) {
+                for_each_possible_cpu(i) {
+                        unsigned long page = get_zeroed_page(GFP_KERNEL);
+
+                        if (!page)
+                                goto out_err;
+
+                        per_cpu(iommu_batch, i).pglist = (u64 *) page;
                 }
+                iommu_batch_initialized = 1;
         }
 
-        for_each_possible_cpu(i) {
-                unsigned long page = get_zeroed_page(GFP_ATOMIC);
-
-                if (!page)
-                        goto fatal_memory_error;
+        pbm = kzalloc(sizeof(*pbm), GFP_KERNEL);
+        if (!pbm) {
+                printk(KERN_ERR PFX "Could not allocate pci_pbm_info\n");
+                goto out_err;
+        }
 
-                per_cpu(iommu_batch, i).pglist = (u64 *) page;
+        iommu = kzalloc(sizeof(struct iommu), GFP_KERNEL);
+        if (!iommu) {
+                printk(KERN_ERR PFX "Could not allocate pbm iommu\n");
+                goto out_free_controller;
         }
 
-        p = kzalloc(sizeof(struct pci_controller_info), GFP_ATOMIC);
-        if (!p)
-                goto fatal_memory_error;
+        pbm->iommu = iommu;
 
-        iommu = kzalloc(sizeof(struct iommu), GFP_ATOMIC);
-        if (!iommu)
-                goto fatal_memory_error;
+        err = pci_sun4v_pbm_init(pbm, op, devhandle);
+        if (err)
+                goto out_free_iommu;
+
+        dev_set_drvdata(&op->dev, pbm);
+
+        return 0;
+
+out_free_iommu:
+        kfree(pbm->iommu);
 
-        p->pbm_A.iommu = iommu;
+out_free_controller:
+        kfree(pbm);
 
-        iommu = kzalloc(sizeof(struct iommu), GFP_ATOMIC);
-        if (!iommu)
-                goto fatal_memory_error;
+out_err:
+        return err;
+}
 
-        p->pbm_B.iommu = iommu;
+static struct of_device_id __initdata pci_sun4v_match[] = {
+        {
+                .name = "pci",
+                .compatible = "SUNW,sun4v-pci",
+        },
+        {},
+};
 
-        pci_sun4v_pbm_init(p, dp, devhandle);
-        return;
+static struct of_platform_driver pci_sun4v_driver = {
+        .name           = DRIVER_NAME,
+        .match_table    = pci_sun4v_match,
+        .probe          = pci_sun4v_probe,
+};
 
-fatal_memory_error:
-        prom_printf("SUN4V_PCI: Fatal memory allocation error.\n");
-        prom_halt();
+static int __init pci_sun4v_init(void)
+{
+        return of_register_driver(&pci_sun4v_driver, &of_bus_type);
 }
+
+subsys_initcall(pci_sun4v_init);
diff --git a/arch/sparc64/kernel/pci_sun4v_asm.S b/arch/sparc64/kernel/pci_sun4v_asm.S
index ecb81f389b0..e606d46c681 100644
--- a/arch/sparc64/kernel/pci_sun4v_asm.S
+++ b/arch/sparc64/kernel/pci_sun4v_asm.S
@@ -1,8 +1,9 @@
 /* pci_sun4v_asm: Hypervisor calls for PCI support.
  *
- * Copyright (C) 2006 David S. Miller <davem@davemloft.net>
+ * Copyright (C) 2006, 2008 David S. Miller <davem@davemloft.net>
  */
 
+#include <linux/linkage.h>
 #include <asm/hypervisor.h>
 
         /* %o0: devhandle
@@ -14,8 +15,7 @@
          * returns %o0: -status if status was non-zero, else
          *         %o0: num pages mapped
          */
-        .globl  pci_sun4v_iommu_map
-pci_sun4v_iommu_map:
+ENTRY(pci_sun4v_iommu_map)
         mov     %o5, %g1
         mov     HV_FAST_PCI_IOMMU_MAP, %o5
         ta      HV_FAST_TRAP
@@ -24,6 +24,7 @@ pci_sun4v_iommu_map:
         mov     %o1, %o0
 1:      retl
          nop
+ENDPROC(pci_sun4v_iommu_map)
 
         /* %o0: devhandle
          * %o1: tsbid
@@ -31,12 +32,12 @@ pci_sun4v_iommu_map:
          *
          * returns %o0: num ttes demapped
          */
-        .globl  pci_sun4v_iommu_demap
-pci_sun4v_iommu_demap:
+ENTRY(pci_sun4v_iommu_demap)
         mov     HV_FAST_PCI_IOMMU_DEMAP, %o5
         ta      HV_FAST_TRAP
         retl
          mov    %o1, %o0
+ENDPROC(pci_sun4v_iommu_demap)
 
         /* %o0: devhandle
          * %o1: tsbid
@@ -45,8 +46,7 @@ pci_sun4v_iommu_demap:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_iommu_getmap
-pci_sun4v_iommu_getmap:
+ENTRY(pci_sun4v_iommu_getmap)
         mov     %o2, %o4
         mov     HV_FAST_PCI_IOMMU_GETMAP, %o5
         ta      HV_FAST_TRAP
@@ -54,6 +54,7 @@ pci_sun4v_iommu_getmap:
         stx     %o2, [%o3]
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_iommu_getmap)
 
         /* %o0: devhandle
          * %o1: pci_device
@@ -65,14 +66,14 @@ pci_sun4v_iommu_getmap:
          * If there is an error, the data will be returned
          * as all 1's.
          */
-        .globl  pci_sun4v_config_get
-pci_sun4v_config_get:
+ENTRY(pci_sun4v_config_get)
         mov     HV_FAST_PCI_CONFIG_GET, %o5
         ta      HV_FAST_TRAP
         brnz,a,pn %o1, 1f
          mov    -1, %o2
 1:      retl
          mov    %o2, %o0
+ENDPROC(pci_sun4v_config_get)
 
         /* %o0: devhandle
          * %o1: pci_device
@@ -85,14 +86,14 @@ pci_sun4v_config_get:
          * status will be zero if the operation completed
          * successfully, else -1 if not
          */
-        .globl  pci_sun4v_config_put
-pci_sun4v_config_put:
+ENTRY(pci_sun4v_config_put)
         mov     HV_FAST_PCI_CONFIG_PUT, %o5
         ta      HV_FAST_TRAP
         brnz,a,pn %o1, 1f
          mov    -1, %o1
 1:      retl
          mov    %o1, %o0
+ENDPROC(pci_sun4v_config_put)
 
         /* %o0: devhandle
          * %o1: msiqid
@@ -104,12 +105,12 @@ pci_sun4v_config_put:
          * status will be zero if the operation completed
          * successfully, else -1 if not
          */
-        .globl  pci_sun4v_msiq_conf
-pci_sun4v_msiq_conf:
+ENTRY(pci_sun4v_msiq_conf)
         mov     HV_FAST_PCI_MSIQ_CONF, %o5
         ta      HV_FAST_TRAP
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msiq_conf)
 
         /* %o0: devhandle
          * %o1: msiqid
@@ -118,8 +119,7 @@ pci_sun4v_msiq_conf:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msiq_info
-pci_sun4v_msiq_info:
+ENTRY(pci_sun4v_msiq_info)
         mov     %o2, %o4
         mov     HV_FAST_PCI_MSIQ_INFO, %o5
         ta      HV_FAST_TRAP
@@ -127,6 +127,7 @@ pci_sun4v_msiq_info:
         stx     %o2, [%o3]
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msiq_info)
 
         /* %o0: devhandle
          * %o1: msiqid
@@ -134,13 +135,13 @@ pci_sun4v_msiq_info:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msiq_getvalid
-pci_sun4v_msiq_getvalid:
+ENTRY(pci_sun4v_msiq_getvalid)
         mov     HV_FAST_PCI_MSIQ_GETVALID, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o2]
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msiq_getvalid)
 
         /* %o0: devhandle
          * %o1: msiqid
@@ -148,12 +149,12 @@ pci_sun4v_msiq_getvalid:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msiq_setvalid
-pci_sun4v_msiq_setvalid:
+ENTRY(pci_sun4v_msiq_setvalid)
         mov     HV_FAST_PCI_MSIQ_SETVALID, %o5
         ta      HV_FAST_TRAP
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msiq_setvalid)
 
         /* %o0: devhandle
          * %o1: msiqid
@@ -161,13 +162,13 @@ pci_sun4v_msiq_setvalid:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msiq_getstate
-pci_sun4v_msiq_getstate:
+ENTRY(pci_sun4v_msiq_getstate)
         mov     HV_FAST_PCI_MSIQ_GETSTATE, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o2]
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msiq_getstate)
 
         /* %o0: devhandle
          * %o1: msiqid
@@ -175,12 +176,12 @@ pci_sun4v_msiq_getstate:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msiq_setstate
-pci_sun4v_msiq_setstate:
+ENTRY(pci_sun4v_msiq_setstate)
         mov     HV_FAST_PCI_MSIQ_SETSTATE, %o5
         ta      HV_FAST_TRAP
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msiq_setstate)
 
         /* %o0: devhandle
          * %o1: msiqid
@@ -188,13 +189,13 @@ pci_sun4v_msiq_setstate:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msiq_gethead
-pci_sun4v_msiq_gethead:
+ENTRY(pci_sun4v_msiq_gethead)
         mov     HV_FAST_PCI_MSIQ_GETHEAD, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o2]
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msiq_gethead)
 
         /* %o0: devhandle
          * %o1: msiqid
@@ -202,12 +203,12 @@ pci_sun4v_msiq_gethead:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msiq_sethead
-pci_sun4v_msiq_sethead:
+ENTRY(pci_sun4v_msiq_sethead)
         mov     HV_FAST_PCI_MSIQ_SETHEAD, %o5
         ta      HV_FAST_TRAP
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msiq_sethead)
 
         /* %o0: devhandle
          * %o1: msiqid
@@ -215,13 +216,13 @@ pci_sun4v_msiq_sethead:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msiq_gettail
-pci_sun4v_msiq_gettail:
+ENTRY(pci_sun4v_msiq_gettail)
         mov     HV_FAST_PCI_MSIQ_GETTAIL, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o2]
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msiq_gettail)
 
         /* %o0: devhandle
          * %o1: msinum
@@ -229,13 +230,13 @@ pci_sun4v_msiq_gettail:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msi_getvalid
-pci_sun4v_msi_getvalid:
+ENTRY(pci_sun4v_msi_getvalid)
         mov     HV_FAST_PCI_MSI_GETVALID, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o2]
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msi_getvalid)
 
         /* %o0: devhandle
          * %o1: msinum
@@ -243,12 +244,12 @@ pci_sun4v_msi_getvalid:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msi_setvalid
-pci_sun4v_msi_setvalid:
+ENTRY(pci_sun4v_msi_setvalid)
         mov     HV_FAST_PCI_MSI_SETVALID, %o5
         ta      HV_FAST_TRAP
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msi_setvalid)
 
         /* %o0: devhandle
          * %o1: msinum
@@ -256,13 +257,13 @@ pci_sun4v_msi_setvalid:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msi_getmsiq
-pci_sun4v_msi_getmsiq:
+ENTRY(pci_sun4v_msi_getmsiq)
         mov     HV_FAST_PCI_MSI_GETMSIQ, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o2]
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msi_getmsiq)
 
         /* %o0: devhandle
          * %o1: msinum
@@ -271,12 +272,12 @@ pci_sun4v_msi_getmsiq:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msi_setmsiq
-pci_sun4v_msi_setmsiq:
+ENTRY(pci_sun4v_msi_setmsiq)
         mov     HV_FAST_PCI_MSI_SETMSIQ, %o5
         ta      HV_FAST_TRAP
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msi_setmsiq)
 
         /* %o0: devhandle
          * %o1: msinum
@@ -284,13 +285,13 @@ pci_sun4v_msi_setmsiq:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msi_getstate
-pci_sun4v_msi_getstate:
+ENTRY(pci_sun4v_msi_getstate)
         mov     HV_FAST_PCI_MSI_GETSTATE, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o2]
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msi_getstate)
 
         /* %o0: devhandle
          * %o1: msinum
@@ -298,12 +299,12 @@ pci_sun4v_msi_getstate:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msi_setstate
-pci_sun4v_msi_setstate:
+ENTRY(pci_sun4v_msi_setstate)
         mov     HV_FAST_PCI_MSI_SETSTATE, %o5
         ta      HV_FAST_TRAP
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msi_setstate)
 
         /* %o0: devhandle
          * %o1: msinum
@@ -311,13 +312,13 @@ pci_sun4v_msi_setstate:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msg_getmsiq
-pci_sun4v_msg_getmsiq:
+ENTRY(pci_sun4v_msg_getmsiq)
         mov     HV_FAST_PCI_MSG_GETMSIQ, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o2]
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msg_getmsiq)
 
         /* %o0: devhandle
          * %o1: msinum
@@ -325,12 +326,12 @@ pci_sun4v_msg_getmsiq:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msg_setmsiq
-pci_sun4v_msg_setmsiq:
+ENTRY(pci_sun4v_msg_setmsiq)
         mov     HV_FAST_PCI_MSG_SETMSIQ, %o5
         ta      HV_FAST_TRAP
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msg_setmsiq)
 
         /* %o0: devhandle
          * %o1: msinum
@@ -338,13 +339,13 @@ pci_sun4v_msg_setmsiq:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msg_getvalid
-pci_sun4v_msg_getvalid:
+ENTRY(pci_sun4v_msg_getvalid)
         mov     HV_FAST_PCI_MSG_GETVALID, %o5
         ta      HV_FAST_TRAP
         stx     %o1, [%o2]
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msg_getvalid)
 
         /* %o0: devhandle
          * %o1: msinum
@@ -352,10 +353,10 @@ pci_sun4v_msg_getvalid:
          *
          * returns %o0: status
          */
-        .globl  pci_sun4v_msg_setvalid
-pci_sun4v_msg_setvalid:
+ENTRY(pci_sun4v_msg_setvalid)
         mov     HV_FAST_PCI_MSG_SETVALID, %o5
         ta      HV_FAST_TRAP
         retl
          mov    %o0, %o0
+ENDPROC(pci_sun4v_msg_setvalid)
 
diff --git a/arch/sparc64/kernel/power.c b/arch/sparc64/kernel/power.c
index 3bb987a6d03..076cad7f975 100644
--- a/arch/sparc64/kernel/power.c
+++ b/arch/sparc64/kernel/power.c
@@ -1,34 +1,17 @@
 /* power.c: Power management driver.
  *
- * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1999, 2007, 2008 David S. Miller (davem@davemloft.net)
  */
 
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/delay.h>
 #include <linux/interrupt.h>
-#include <linux/pm.h>
-#include <linux/syscalls.h>
 #include <linux/reboot.h>
 #include <linux/of_device.h>
 
-#include <asm/system.h>
-#include <asm/auxio.h>
 #include <asm/prom.h>
 #include <asm/io.h>
-#include <asm/sstate.h>
-#include <asm/reboot.h>
-
-#include <linux/unistd.h>
-
-/*
- * sysctl - toggle power-off restriction for serial console 
- * systems in machine_power_off()
- */
-int scons_pwroff = 1; 
 
 static void __iomem *power_reg;
 
@@ -40,31 +23,6 @@ static irqreturn_t power_handler(int irq, void *dev_id)
         return IRQ_HANDLED;
 }
 
-static void (*poweroff_method)(void) = machine_alt_power_off;
-
-void machine_power_off(void)
-{
-        sstate_poweroff();
-        if (strcmp(of_console_device->type, "serial") || scons_pwroff) {
-                if (power_reg) {
-                        /* Both register bits seem to have the
-                         * same effect, so until I figure out
-                         * what the difference is...
-                         */
-                        writel(AUXIO_PCIO_CPWR_OFF | AUXIO_PCIO_SPWR_OFF, power_reg);
-                } else {
-                        if (poweroff_method != NULL) {
-                                poweroff_method();
-                                /* not reached */
-                        }
-                }
-        }
-        machine_halt();
-}
-
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 static int __init has_button_interrupt(unsigned int irq, struct device_node *dp)
 {
         if (irq == 0xffffffff)
@@ -85,8 +43,6 @@ static int __devinit power_probe(struct of_device *op, const struct of_device_id
         printk(KERN_INFO "%s: Control reg at %lx\n",
                op->node->name, res->start);
 
-        poweroff_method = machine_halt;  /* able to use the standard halt */
-
         if (has_button_interrupt(irq, op->node)) {
                 if (request_irq(irq,
                                 power_handler, 0, "power", NULL) < 0)
@@ -96,7 +52,7 @@ static int __devinit power_probe(struct of_device *op, const struct of_device_id
         return 0;
 }
 
-static struct of_device_id power_match[] = {
+static struct of_device_id __initdata power_match[] = {
         {
                 .name = "power",
         },
@@ -111,8 +67,9 @@ static struct of_platform_driver power_driver = {
         },
 };
 
-void __init power_init(void)
+static int __init power_init(void)
 {
-        of_register_driver(&power_driver, &of_platform_bus_type);
-        return;
+        return of_register_driver(&power_driver, &of_platform_bus_type);
 }
+
+device_initcall(power_init);
diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c
index 15f4178592e..d5e2acef987 100644
--- a/arch/sparc64/kernel/process.c
+++ b/arch/sparc64/kernel/process.c
@@ -22,7 +22,6 @@
 #include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/user.h>
-#include <linux/reboot.h>
 #include <linux/delay.h>
 #include <linux/compat.h>
 #include <linux/tick.h>
@@ -31,7 +30,6 @@
 #include <linux/elfcore.h>
 #include <linux/sysrq.h>
 
-#include <asm/oplib.h>
 #include <asm/uaccess.h>
 #include <asm/system.h>
 #include <asm/page.h>
@@ -46,8 +44,6 @@
 #include <asm/mmu_context.h>
 #include <asm/unistd.h>
 #include <asm/hypervisor.h>
-#include <asm/sstate.h>
-#include <asm/reboot.h>
 #include <asm/syscalls.h>
 #include <asm/irq_regs.h>
 #include <asm/smp.h>
@@ -115,35 +111,6 @@ void cpu_idle(void)
         }
 }
 
-void machine_halt(void)
-{
-        sstate_halt();
-        prom_halt();
-        panic("Halt failed!");
-}
-
-void machine_alt_power_off(void)
-{
-        sstate_poweroff();
-        prom_halt_power_off();
-        panic("Power-off failed!");
-}
-
-void machine_restart(char * cmd)
-{
-        char *p;
-        
-        sstate_reboot();
-        p = strchr (reboot_command, '\n');
-        if (p) *p = 0;
-        if (cmd)
-                prom_reboot(cmd);
-        if (*reboot_command)
-                prom_reboot(reboot_command);
-        prom_reboot("");
-        panic("Reboot failed!");
-}
-
 #ifdef CONFIG_COMPAT
 static void show_regwindow32(struct pt_regs *regs)
 {
@@ -248,7 +215,6 @@ static void __global_reg_self(struct thread_info *tp, struct pt_regs *regs,
         global_reg_snapshot[this_cpu].o7 = regs->u_regs[UREG_I7];
 
         if (regs->tstate & TSTATE_PRIV) {
-                struct thread_info *tp = current_thread_info();
                 struct reg_window *rw;
 
                 rw = (struct reg_window *)
@@ -304,7 +270,6 @@ void __trigger_all_cpu_backtrace(void)
 
         for_each_online_cpu(cpu) {
                 struct global_reg_snapshot *gp = &global_reg_snapshot[cpu];
-                struct thread_info *tp;
 
                 __global_reg_poll(gp);
 
diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c
index 7151513f156..dbba82f9b14 100644
--- a/arch/sparc64/kernel/prom.c
+++ b/arch/sparc64/kernel/prom.c
@@ -38,7 +38,7 @@ struct device_node *of_find_node_by_phandle(phandle handle)
 {
         struct device_node *np;
 
-        for (np = allnodes; np != 0; np = np->allnext)
+        for (np = allnodes; np; np = np->allnext)
                 if (np->node == handle)
                         break;
 
@@ -59,6 +59,9 @@ int of_getintprop_default(struct device_node *np, const char *name, int def)
 }
 EXPORT_SYMBOL(of_getintprop_default);
 
+DEFINE_MUTEX(of_set_property_mutex);
+EXPORT_SYMBOL(of_set_property_mutex);
+
 int of_set_property(struct device_node *dp, const char *name, void *val, int len)
 {
         struct property **prevp;
@@ -82,7 +85,10 @@ int of_set_property(struct device_node *dp, const char *name, void *val, int len
                         void *old_val = prop->value;
                         int ret;
 
+                        mutex_lock(&of_set_property_mutex);
                         ret = prom_setprop(dp->node, name, val, len);
+                        mutex_unlock(&of_set_property_mutex);
+
                         err = -EINVAL;
                         if (ret >= 0) {
                                 prop->value = new_val;
@@ -945,22 +951,30 @@ static void __init irq_trans_init(struct device_node *dp)
                 for (i = 0; i < ARRAY_SIZE(pci_irq_trans_table); i++) {
                         struct irq_trans *t = &pci_irq_trans_table[i];
 
-                        if (!strcmp(model, t->name))
-                                return t->init(dp);
+                        if (!strcmp(model, t->name)) {
+                                t->init(dp);
+                                return;
+                        }
                 }
         }
 #endif
 #ifdef CONFIG_SBUS
         if (!strcmp(dp->name, "sbus") ||
-            !strcmp(dp->name, "sbi"))
-                return sbus_irq_trans_init(dp);
+            !strcmp(dp->name, "sbi")) {
+                sbus_irq_trans_init(dp);
+                return;
+        }
 #endif
         if (!strcmp(dp->name, "fhc") &&
-            !strcmp(dp->parent->name, "central"))
-                return central_irq_trans_init(dp);
+            !strcmp(dp->parent->name, "central")) {
+                central_irq_trans_init(dp);
+                return;
+        }
         if (!strcmp(dp->name, "virtual-devices") ||
-            !strcmp(dp->name, "niu"))
-                return sun4v_vdev_irq_trans_init(dp);
+            !strcmp(dp->name, "niu")) {
+                sun4v_vdev_irq_trans_init(dp);
+                return;
+        }
 }
 
 static int is_root_node(const struct device_node *dp)
@@ -1231,32 +1245,49 @@ static void __init __build_path_component(struct device_node *dp, char *tmp_buf)
 
         if (parent != NULL) {
                 if (!strcmp(parent->type, "pci") ||
-                    !strcmp(parent->type, "pciex"))
-                        return pci_path_component(dp, tmp_buf);
-                if (!strcmp(parent->type, "sbus"))
-                        return sbus_path_component(dp, tmp_buf);
-                if (!strcmp(parent->type, "upa"))
-                        return upa_path_component(dp, tmp_buf);
-                if (!strcmp(parent->type, "ebus"))
-                        return ebus_path_component(dp, tmp_buf);
+                    !strcmp(parent->type, "pciex")) {
+                        pci_path_component(dp, tmp_buf);
+                        return;
+                }
+                if (!strcmp(parent->type, "sbus")) {
+                        sbus_path_component(dp, tmp_buf);
+                        return;
+                }
+                if (!strcmp(parent->type, "upa")) {
+                        upa_path_component(dp, tmp_buf);
+                        return;
+                }
+                if (!strcmp(parent->type, "ebus")) {
+                        ebus_path_component(dp, tmp_buf);
+                        return;
+                }
                 if (!strcmp(parent->name, "usb") ||
-                    !strcmp(parent->name, "hub"))
-                        return usb_path_component(dp, tmp_buf);
-                if (!strcmp(parent->type, "i2c"))
-                        return i2c_path_component(dp, tmp_buf);
-                if (!strcmp(parent->type, "firewire"))
-                        return ieee1394_path_component(dp, tmp_buf);
-                if (!strcmp(parent->type, "virtual-devices"))
-                        return vdev_path_component(dp, tmp_buf);
-
+                    !strcmp(parent->name, "hub")) {
+                        usb_path_component(dp, tmp_buf);
+                        return;
+                }
+                if (!strcmp(parent->type, "i2c")) {
+                        i2c_path_component(dp, tmp_buf);
+                        return;
+                }
+                if (!strcmp(parent->type, "firewire")) {
+                        ieee1394_path_component(dp, tmp_buf);
+                        return;
+                }
+                if (!strcmp(parent->type, "virtual-devices")) {
+                        vdev_path_component(dp, tmp_buf);
+                        return;
+                }
                 /* "isa" is handled with platform naming */
         }
 
         /* Use platform naming convention.  */
-        if (tlb_type == hypervisor)
-                return sun4v_path_component(dp, tmp_buf);
-        else
-                return sun4u_path_component(dp, tmp_buf);
+        if (tlb_type == hypervisor) {
+                sun4v_path_component(dp, tmp_buf);
+                return;
+        } else {
+                sun4u_path_component(dp, tmp_buf);
+        }
 }
 
 static char * __init build_path_component(struct device_node *dp)
diff --git a/arch/sparc64/kernel/psycho_common.c b/arch/sparc64/kernel/psycho_common.c
new file mode 100644
index 00000000000..790996428c1
--- /dev/null
+++ b/arch/sparc64/kernel/psycho_common.c
@@ -0,0 +1,470 @@
+/* psycho_common.c: Code common to PSYCHO and derivative PCI controllers.
+ *
+ * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
+ */
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+
+#include <asm/upa.h>
+
+#include "pci_impl.h"
+#include "iommu_common.h"
+#include "psycho_common.h"
+
+#define  PSYCHO_STRBUF_CTRL_DENAB       0x0000000000000002UL
+#define  PSYCHO_STCERR_WRITE            0x0000000000000002UL
+#define  PSYCHO_STCERR_READ             0x0000000000000001UL
+#define  PSYCHO_STCTAG_PPN              0x0fffffff00000000UL
+#define  PSYCHO_STCTAG_VPN              0x00000000ffffe000UL
+#define  PSYCHO_STCTAG_VALID            0x0000000000000002UL
+#define  PSYCHO_STCTAG_WRITE            0x0000000000000001UL
+#define  PSYCHO_STCLINE_LINDX           0x0000000001e00000UL
+#define  PSYCHO_STCLINE_SPTR            0x00000000001f8000UL
+#define  PSYCHO_STCLINE_LADDR           0x0000000000007f00UL
+#define  PSYCHO_STCLINE_EPTR            0x00000000000000fcUL
+#define  PSYCHO_STCLINE_VALID           0x0000000000000002UL
+#define  PSYCHO_STCLINE_FOFN            0x0000000000000001UL
+
+static DEFINE_SPINLOCK(stc_buf_lock);
+static unsigned long stc_error_buf[128];
+static unsigned long stc_tag_buf[16];
+static unsigned long stc_line_buf[16];
+
+static void psycho_check_stc_error(struct pci_pbm_info *pbm)
+{
+        unsigned long err_base, tag_base, line_base;
+        struct strbuf *strbuf = &pbm->stc;
+        u64 control;
+        int i;
+
+        if (!strbuf->strbuf_control)
+                return;
+
+        err_base = strbuf->strbuf_err_stat;
+        tag_base = strbuf->strbuf_tag_diag;
+        line_base = strbuf->strbuf_line_diag;
+
+        spin_lock(&stc_buf_lock);
+
+        /* This is __REALLY__ dangerous.  When we put the streaming
+         * buffer into diagnostic mode to probe it's tags and error
+         * status, we _must_ clear all of the line tag valid bits
+         * before re-enabling the streaming buffer.  If any dirty data
+         * lives in the STC when we do this, we will end up
+         * invalidating it before it has a chance to reach main
+         * memory.
+         */
+        control = upa_readq(strbuf->strbuf_control);
+        upa_writeq(control | PSYCHO_STRBUF_CTRL_DENAB, strbuf->strbuf_control);
+        for (i = 0; i < 128; i++) {
+                u64 val;
+
+                val = upa_readq(err_base + (i * 8UL));
+                upa_writeq(0UL, err_base + (i * 8UL));
+                stc_error_buf[i] = val;
+        }
+        for (i = 0; i < 16; i++) {
+                stc_tag_buf[i] = upa_readq(tag_base + (i * 8UL));
+                stc_line_buf[i] = upa_readq(line_base + (i * 8UL));
+                upa_writeq(0UL, tag_base + (i * 8UL));
+                upa_writeq(0UL, line_base + (i * 8UL));
+        }
+
+        /* OK, state is logged, exit diagnostic mode. */
+        upa_writeq(control, strbuf->strbuf_control);
+
+        for (i = 0; i < 16; i++) {
+                int j, saw_error, first, last;
+
+                saw_error = 0;
+                first = i * 8;
+                last = first + 8;
+                for (j = first; j < last; j++) {
+                        u64 errval = stc_error_buf[j];
+                        if (errval != 0) {
+                                saw_error++;
+                                printk(KERN_ERR "%s: STC_ERR(%d)[wr(%d)"
+                                       "rd(%d)]\n",
+                                       pbm->name,
+                                       j,
+                                       (errval & PSYCHO_STCERR_WRITE) ? 1 : 0,
+                                       (errval & PSYCHO_STCERR_READ) ? 1 : 0);
+                        }
+                }
+                if (saw_error != 0) {
+                        u64 tagval = stc_tag_buf[i];
+                        u64 lineval = stc_line_buf[i];
+                        printk(KERN_ERR "%s: STC_TAG(%d)[PA(%016lx)VA(%08lx)"
+                               "V(%d)W(%d)]\n",
+                               pbm->name,
+                               i,
+                               ((tagval & PSYCHO_STCTAG_PPN) >> 19UL),
+                               (tagval & PSYCHO_STCTAG_VPN),
+                               ((tagval & PSYCHO_STCTAG_VALID) ? 1 : 0),
+                               ((tagval & PSYCHO_STCTAG_WRITE) ? 1 : 0));
+                        printk(KERN_ERR "%s: STC_LINE(%d)[LIDX(%lx)SP(%lx)"
+                               "LADDR(%lx)EP(%lx)V(%d)FOFN(%d)]\n",
+                               pbm->name,
+                               i,
+                               ((lineval & PSYCHO_STCLINE_LINDX) >> 21UL),
+                               ((lineval & PSYCHO_STCLINE_SPTR) >> 15UL),
+                               ((lineval & PSYCHO_STCLINE_LADDR) >> 8UL),
+                               ((lineval & PSYCHO_STCLINE_EPTR) >> 2UL),
+                               ((lineval & PSYCHO_STCLINE_VALID) ? 1 : 0),
+                               ((lineval & PSYCHO_STCLINE_FOFN) ? 1 : 0));
+                }
+        }
+
+        spin_unlock(&stc_buf_lock);
+}
+
+#define PSYCHO_IOMMU_TAG                0xa580UL
+#define PSYCHO_IOMMU_DATA               0xa600UL
+
+static void psycho_record_iommu_tags_and_data(struct pci_pbm_info *pbm,
+                                              u64 *tag, u64 *data)
+{
+        int i;
+
+        for (i = 0; i < 16; i++) {
+                unsigned long base = pbm->controller_regs;
+                unsigned long off = i * 8UL;
+
+                tag[i] = upa_readq(base + PSYCHO_IOMMU_TAG+off);
+                data[i] = upa_readq(base + PSYCHO_IOMMU_DATA+off);
+
+                /* Now clear out the entry. */
+                upa_writeq(0, base + PSYCHO_IOMMU_TAG + off);
+                upa_writeq(0, base + PSYCHO_IOMMU_DATA + off);
+        }
+}
+
+#define  PSYCHO_IOMMU_TAG_ERRSTS (0x3UL << 23UL)
+#define  PSYCHO_IOMMU_TAG_ERR    (0x1UL << 22UL)
+#define  PSYCHO_IOMMU_TAG_WRITE  (0x1UL << 21UL)
+#define  PSYCHO_IOMMU_TAG_STREAM (0x1UL << 20UL)
+#define  PSYCHO_IOMMU_TAG_SIZE   (0x1UL << 19UL)
+#define  PSYCHO_IOMMU_TAG_VPAGE  0x7ffffUL
+#define  PSYCHO_IOMMU_DATA_VALID (1UL << 30UL)
+#define  PSYCHO_IOMMU_DATA_CACHE (1UL << 28UL)
+#define  PSYCHO_IOMMU_DATA_PPAGE 0xfffffffUL
+
+static void psycho_dump_iommu_tags_and_data(struct pci_pbm_info *pbm,
+                                            u64 *tag, u64 *data)
+{
+        int i;
+
+        for (i = 0; i < 16; i++) {
+                u64 tag_val, data_val;
+                const char *type_str;
+                tag_val = tag[i];
+                if (!(tag_val & PSYCHO_IOMMU_TAG_ERR))
+                        continue;
+
+                data_val = data[i];
+                switch((tag_val & PSYCHO_IOMMU_TAG_ERRSTS) >> 23UL) {
+                case 0:
+                        type_str = "Protection Error";
+                        break;
+                case 1:
+                        type_str = "Invalid Error";
+                        break;
+                case 2:
+                        type_str = "TimeOut Error";
+                        break;
+                case 3:
+                default:
+                        type_str = "ECC Error";
+                        break;
+                }
+
+                printk(KERN_ERR "%s: IOMMU TAG(%d)[error(%s) wr(%d) "
+                       "str(%d) sz(%dK) vpg(%08lx)]\n",
+                       pbm->name, i, type_str,
+                       ((tag_val & PSYCHO_IOMMU_TAG_WRITE) ? 1 : 0),
+                       ((tag_val & PSYCHO_IOMMU_TAG_STREAM) ? 1 : 0),
+                       ((tag_val & PSYCHO_IOMMU_TAG_SIZE) ? 64 : 8),
+                       (tag_val & PSYCHO_IOMMU_TAG_VPAGE) << IOMMU_PAGE_SHIFT);
+                printk(KERN_ERR "%s: IOMMU DATA(%d)[valid(%d) cache(%d) "
+                       "ppg(%016lx)]\n",
+                       pbm->name, i,
+                       ((data_val & PSYCHO_IOMMU_DATA_VALID) ? 1 : 0),
+                       ((data_val & PSYCHO_IOMMU_DATA_CACHE) ? 1 : 0),
+                       (data_val & PSYCHO_IOMMU_DATA_PPAGE)<<IOMMU_PAGE_SHIFT);
+        }
+}
+
+#define  PSYCHO_IOMMU_CTRL_XLTESTAT     0x0000000006000000UL
+#define  PSYCHO_IOMMU_CTRL_XLTEERR      0x0000000001000000UL
+
+void psycho_check_iommu_error(struct pci_pbm_info *pbm,
+                              unsigned long afsr,
+                              unsigned long afar,
+                              enum psycho_error_type type)
+{
+        u64 control, iommu_tag[16], iommu_data[16];
+        struct iommu *iommu = pbm->iommu;
+        unsigned long flags;
+
+        spin_lock_irqsave(&iommu->lock, flags);
+        control = upa_readq(iommu->iommu_control);
+        if (control & PSYCHO_IOMMU_CTRL_XLTEERR) {
+                const char *type_str;
+
+                control &= ~PSYCHO_IOMMU_CTRL_XLTEERR;
+                upa_writeq(control, iommu->iommu_control);
+
+                switch ((control & PSYCHO_IOMMU_CTRL_XLTESTAT) >> 25UL) {
+                case 0:
+                        type_str = "Protection Error";
+                        break;
+                case 1:
+                        type_str = "Invalid Error";
+                        break;
+                case 2:
+                        type_str = "TimeOut Error";
+                        break;
+                case 3:
+                default:
+                        type_str = "ECC Error";
+                        break;
+                };
+                printk(KERN_ERR "%s: IOMMU Error, type[%s]\n",
+                       pbm->name, type_str);
+
+                /* It is very possible for another DVMA to occur while
+                 * we do this probe, and corrupt the system further.
+                 * But we are so screwed at this point that we are
+                 * likely to crash hard anyways, so get as much
+                 * diagnostic information to the console as we can.
+                 */
+                psycho_record_iommu_tags_and_data(pbm, iommu_tag, iommu_data);
+                psycho_dump_iommu_tags_and_data(pbm, iommu_tag, iommu_data);
+        }
+        psycho_check_stc_error(pbm);
+        spin_unlock_irqrestore(&iommu->lock, flags);
+}
+
+#define  PSYCHO_PCICTRL_SBH_ERR  0x0000000800000000UL
+#define  PSYCHO_PCICTRL_SERR     0x0000000400000000UL
+
+static irqreturn_t psycho_pcierr_intr_other(struct pci_pbm_info *pbm)
+{
+        irqreturn_t ret = IRQ_NONE;
+        u64 csr, csr_error_bits;
+        u16 stat, *addr;
+
+        csr = upa_readq(pbm->pci_csr);
+        csr_error_bits = csr & (PSYCHO_PCICTRL_SBH_ERR | PSYCHO_PCICTRL_SERR);
+        if (csr_error_bits) {
+                /* Clear the errors.  */
+                upa_writeq(csr, pbm->pci_csr);
+
+                /* Log 'em.  */
+                if (csr_error_bits & PSYCHO_PCICTRL_SBH_ERR)
+                        printk(KERN_ERR "%s: PCI streaming byte hole "
+                               "error asserted.\n", pbm->name);
+                if (csr_error_bits & PSYCHO_PCICTRL_SERR)
+                        printk(KERN_ERR "%s: PCI SERR signal asserted.\n",
+                               pbm->name);
+                ret = IRQ_HANDLED;
+        }
+        addr = psycho_pci_config_mkaddr(pbm, pbm->pci_first_busno,
+                                        0, PCI_STATUS);
+        pci_config_read16(addr, &stat);
+        if (stat & (PCI_STATUS_PARITY |
+                    PCI_STATUS_SIG_TARGET_ABORT |
+                    PCI_STATUS_REC_TARGET_ABORT |
+                    PCI_STATUS_REC_MASTER_ABORT |
+                    PCI_STATUS_SIG_SYSTEM_ERROR)) {
+                printk(KERN_ERR "%s: PCI bus error, PCI_STATUS[%04x]\n",
+                       pbm->name, stat);
+                pci_config_write16(addr, 0xffff);
+                ret = IRQ_HANDLED;
+        }
+        return ret;
+}
+
+#define  PSYCHO_PCIAFSR_PMA     0x8000000000000000UL
+#define  PSYCHO_PCIAFSR_PTA     0x4000000000000000UL
+#define  PSYCHO_PCIAFSR_PRTRY   0x2000000000000000UL
+#define  PSYCHO_PCIAFSR_PPERR   0x1000000000000000UL
+#define  PSYCHO_PCIAFSR_SMA     0x0800000000000000UL
+#define  PSYCHO_PCIAFSR_STA     0x0400000000000000UL
+#define  PSYCHO_PCIAFSR_SRTRY   0x0200000000000000UL
+#define  PSYCHO_PCIAFSR_SPERR   0x0100000000000000UL
+#define  PSYCHO_PCIAFSR_RESV1   0x00ff000000000000UL
+#define  PSYCHO_PCIAFSR_BMSK    0x0000ffff00000000UL
+#define  PSYCHO_PCIAFSR_BLK     0x0000000080000000UL
+#define  PSYCHO_PCIAFSR_RESV2   0x0000000040000000UL
+#define  PSYCHO_PCIAFSR_MID     0x000000003e000000UL
+#define  PSYCHO_PCIAFSR_RESV3   0x0000000001ffffffUL
+
+irqreturn_t psycho_pcierr_intr(int irq, void *dev_id)
+{
+        struct pci_pbm_info *pbm = dev_id;
+        u64 afsr, afar, error_bits;
+        int reported;
+
+        afsr = upa_readq(pbm->pci_afsr);
+        afar = upa_readq(pbm->pci_afar);
+        error_bits = afsr &
+                (PSYCHO_PCIAFSR_PMA | PSYCHO_PCIAFSR_PTA |
+                 PSYCHO_PCIAFSR_PRTRY | PSYCHO_PCIAFSR_PPERR |
+                 PSYCHO_PCIAFSR_SMA | PSYCHO_PCIAFSR_STA |
+                 PSYCHO_PCIAFSR_SRTRY | PSYCHO_PCIAFSR_SPERR);
+        if (!error_bits)
+                return psycho_pcierr_intr_other(pbm);
+        upa_writeq(error_bits, pbm->pci_afsr);
+        printk(KERN_ERR "%s: PCI Error, primary error type[%s]\n",
+               pbm->name,
+               (((error_bits & PSYCHO_PCIAFSR_PMA) ?
+                 "Master Abort" :
+                 ((error_bits & PSYCHO_PCIAFSR_PTA) ?
+                  "Target Abort" :
+                  ((error_bits & PSYCHO_PCIAFSR_PRTRY) ?
+                   "Excessive Retries" :
+                   ((error_bits & PSYCHO_PCIAFSR_PPERR) ?
+                    "Parity Error" : "???"))))));
+        printk(KERN_ERR "%s: bytemask[%04lx] UPA_MID[%02lx] was_block(%d)\n",
+               pbm->name,
+               (afsr & PSYCHO_PCIAFSR_BMSK) >> 32UL,
+               (afsr & PSYCHO_PCIAFSR_MID) >> 25UL,
+               (afsr & PSYCHO_PCIAFSR_BLK) ? 1 : 0);
+        printk(KERN_ERR "%s: PCI AFAR [%016lx]\n", pbm->name, afar);
+        printk(KERN_ERR "%s: PCI Secondary errors [", pbm->name);
+        reported = 0;
+        if (afsr & PSYCHO_PCIAFSR_SMA) {
+                reported++;
+                printk("(Master Abort)");
+        }
+        if (afsr & PSYCHO_PCIAFSR_STA) {
+                reported++;
+                printk("(Target Abort)");
+        }
+        if (afsr & PSYCHO_PCIAFSR_SRTRY) {
+                reported++;
+                printk("(Excessive Retries)");
+        }
+        if (afsr & PSYCHO_PCIAFSR_SPERR) {
+                reported++;
+                printk("(Parity Error)");
+        }
+        if (!reported)
+                printk("(none)");
+        printk("]\n");
+
+        if (error_bits & (PSYCHO_PCIAFSR_PTA | PSYCHO_PCIAFSR_STA)) {
+                psycho_check_iommu_error(pbm, afsr, afar, PCI_ERR);
+                pci_scan_for_target_abort(pbm, pbm->pci_bus);
+        }
+        if (error_bits & (PSYCHO_PCIAFSR_PMA | PSYCHO_PCIAFSR_SMA))
+                pci_scan_for_master_abort(pbm, pbm->pci_bus);
+
+        if (error_bits & (PSYCHO_PCIAFSR_PPERR | PSYCHO_PCIAFSR_SPERR))
+                pci_scan_for_parity_error(pbm, pbm->pci_bus);
+
+        return IRQ_HANDLED;
+}
+
+static void psycho_iommu_flush(struct pci_pbm_info *pbm)
+{
+        int i;
+
+        for (i = 0; i < 16; i++) {
+                unsigned long off = i * 8;
+
+                upa_writeq(0, pbm->controller_regs + PSYCHO_IOMMU_TAG + off);
+                upa_writeq(0, pbm->controller_regs + PSYCHO_IOMMU_DATA + off);
+        }
+}
+
+#define PSYCHO_IOMMU_CONTROL            0x0200UL
+#define  PSYCHO_IOMMU_CTRL_TSBSZ        0x0000000000070000UL
+#define  PSYCHO_IOMMU_TSBSZ_1K          0x0000000000000000UL
+#define  PSYCHO_IOMMU_TSBSZ_2K          0x0000000000010000UL
+#define  PSYCHO_IOMMU_TSBSZ_4K          0x0000000000020000UL
+#define  PSYCHO_IOMMU_TSBSZ_8K          0x0000000000030000UL
+#define  PSYCHO_IOMMU_TSBSZ_16K         0x0000000000040000UL
+#define  PSYCHO_IOMMU_TSBSZ_32K         0x0000000000050000UL
+#define  PSYCHO_IOMMU_TSBSZ_64K         0x0000000000060000UL
+#define  PSYCHO_IOMMU_TSBSZ_128K        0x0000000000070000UL
+#define  PSYCHO_IOMMU_CTRL_TBWSZ        0x0000000000000004UL
+#define  PSYCHO_IOMMU_CTRL_DENAB        0x0000000000000002UL
+#define  PSYCHO_IOMMU_CTRL_ENAB         0x0000000000000001UL
+#define PSYCHO_IOMMU_FLUSH              0x0210UL
+#define PSYCHO_IOMMU_TSBBASE            0x0208UL
+
+int psycho_iommu_init(struct pci_pbm_info *pbm, int tsbsize,
+                      u32 dvma_offset, u32 dma_mask,
+                      unsigned long write_complete_offset)
+{
+        struct iommu *iommu = pbm->iommu;
+        u64 control;
+        int err;
+
+        iommu->iommu_control  = pbm->controller_regs + PSYCHO_IOMMU_CONTROL;
+        iommu->iommu_tsbbase  = pbm->controller_regs + PSYCHO_IOMMU_TSBBASE;
+        iommu->iommu_flush    = pbm->controller_regs + PSYCHO_IOMMU_FLUSH;
+        iommu->iommu_tags     = pbm->controller_regs + PSYCHO_IOMMU_TAG;
+        iommu->write_complete_reg = (pbm->controller_regs +
+                                     write_complete_offset);
+
+        iommu->iommu_ctxflush = 0;
+
+        control = upa_readq(iommu->iommu_control);
+        control |= PSYCHO_IOMMU_CTRL_DENAB;
+        upa_writeq(control, iommu->iommu_control);
+
+        psycho_iommu_flush(pbm);
+
+        /* Leave diag mode enabled for full-flushing done in pci_iommu.c */
+        err = iommu_table_init(iommu, tsbsize * 1024 * 8,
+                               dvma_offset, dma_mask, pbm->numa_node);
+        if (err)
+                return err;
+
+        upa_writeq(__pa(iommu->page_table), iommu->iommu_tsbbase);
+
+        control = upa_readq(iommu->iommu_control);
+        control &= ~(PSYCHO_IOMMU_CTRL_TSBSZ | PSYCHO_IOMMU_CTRL_TBWSZ);
+        control |= PSYCHO_IOMMU_CTRL_ENAB;
+
+        switch (tsbsize) {
+        case 64:
+                control |= PSYCHO_IOMMU_TSBSZ_64K;
+                break;
+        case 128:
+                control |= PSYCHO_IOMMU_TSBSZ_128K;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        upa_writeq(control, iommu->iommu_control);
+
+        return 0;
+
+}
+
+void psycho_pbm_init_common(struct pci_pbm_info *pbm, struct of_device *op,
+                            const char *chip_name, int chip_type)
+{
+        struct device_node *dp = op->node;
+
+        pbm->name = dp->full_name;
+        pbm->numa_node = -1;
+        pbm->chip_type = chip_type;
+        pbm->chip_version = of_getintprop_default(dp, "version#", 0);
+        pbm->chip_revision = of_getintprop_default(dp, "module-revision#", 0);
+        pbm->op = op;
+        pbm->pci_ops = &sun4u_pci_ops;
+        pbm->config_space_reg_bits = 8;
+        pbm->index = pci_num_pbms++;
+        pci_get_pbm_props(pbm);
+        pci_determine_mem_io_space(pbm);
+
+        printk(KERN_INFO "%s: %s PCI Bus Module ver[%x:%x]\n",
+               pbm->name, chip_name,
+               pbm->chip_version, pbm->chip_revision);
+}
diff --git a/arch/sparc64/kernel/psycho_common.h b/arch/sparc64/kernel/psycho_common.h
new file mode 100644
index 00000000000..092c278ef28
--- /dev/null
+++ b/arch/sparc64/kernel/psycho_common.h
@@ -0,0 +1,48 @@
+#ifndef _PSYCHO_COMMON_H
+#define _PSYCHO_COMMON_H
+
+/* U2P Programmer's Manual, page 13-55, configuration space
+ * address format:
+ * 
+ *  32             24 23 16 15    11 10       8 7   2  1 0
+ * ---------------------------------------------------------
+ * |0 0 0 0 0 0 0 0 1| bus | device | function | reg | 0 0 |
+ * ---------------------------------------------------------
+ */
+#define PSYCHO_CONFIG_BASE(PBM) \
+        ((PBM)->config_space | (1UL << 24))
+#define PSYCHO_CONFIG_ENCODE(BUS, DEVFN, REG)   \
+        (((unsigned long)(BUS)   << 16) |       \
+         ((unsigned long)(DEVFN) << 8)  |       \
+         ((unsigned long)(REG)))
+
+static inline void *psycho_pci_config_mkaddr(struct pci_pbm_info *pbm,
+                                             unsigned char bus,
+                                             unsigned int devfn,
+                                             int where)
+{
+        return (void *)
+                (PSYCHO_CONFIG_BASE(pbm) |
+                 PSYCHO_CONFIG_ENCODE(bus, devfn, where));
+}
+
+enum psycho_error_type {
+        UE_ERR, CE_ERR, PCI_ERR
+};
+
+extern void psycho_check_iommu_error(struct pci_pbm_info *pbm,
+                                     unsigned long afsr,
+                                     unsigned long afar,
+                                     enum psycho_error_type type);
+
+extern irqreturn_t psycho_pcierr_intr(int irq, void *dev_id);
+
+extern int psycho_iommu_init(struct pci_pbm_info *pbm, int tsbsize,
+                             u32 dvma_offset, u32 dma_mask,
+                             unsigned long write_complete_offset);
+
+extern void psycho_pbm_init_common(struct pci_pbm_info *pbm,
+                                   struct of_device *op,
+                                   const char *chip_name, int chip_type);
+
+#endif /* _PSYCHO_COMMON_H */
diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
index 10306e476e3..f43adbc773c 100644
--- a/arch/sparc64/kernel/ptrace.c
+++ b/arch/sparc64/kernel/ptrace.c
@@ -1050,31 +1050,17 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
         return ret;
 }
 
-asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p)
+asmlinkage int syscall_trace_enter(struct pt_regs *regs)
 {
         int ret = 0;
 
         /* do the secure computing check first */
         secure_computing(regs->u_regs[UREG_G1]);
 
-        if (unlikely(current->audit_context) && syscall_exit_p) {
-                unsigned long tstate = regs->tstate;
-                int result = AUDITSC_SUCCESS;
-
-                if (unlikely(tstate & (TSTATE_XCARRY | TSTATE_ICARRY)))
-                        result = AUDITSC_FAILURE;
-
-                audit_syscall_exit(result, regs->u_regs[UREG_I0]);
-        }
-
-        if (test_thread_flag(TIF_SYSCALL_TRACE)) {
-                if (syscall_exit_p)
-                        tracehook_report_syscall_exit(regs, 0);
-                else
-                        ret = tracehook_report_syscall_entry(regs);
-        }
+        if (test_thread_flag(TIF_SYSCALL_TRACE))
+                ret = tracehook_report_syscall_entry(regs);
 
-        if (unlikely(current->audit_context) && !syscall_exit_p && !ret)
+        if (unlikely(current->audit_context) && !ret)
                 audit_syscall_entry((test_thread_flag(TIF_32BIT) ?
                                      AUDIT_ARCH_SPARC :
                                      AUDIT_ARCH_SPARC64),
@@ -1086,3 +1072,19 @@ asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p)
 
         return ret;
 }
+
+asmlinkage void syscall_trace_leave(struct pt_regs *regs)
+{
+        if (unlikely(current->audit_context)) {
+                unsigned long tstate = regs->tstate;
+                int result = AUDITSC_SUCCESS;
+
+                if (unlikely(tstate & (TSTATE_XCARRY | TSTATE_ICARRY)))
+                        result = AUDITSC_FAILURE;
+
+                audit_syscall_exit(result, regs->u_regs[UREG_I0]);
+        }
+
+        if (test_thread_flag(TIF_SYSCALL_TRACE))
+                tracehook_report_syscall_exit(regs, 0);
+}
diff --git a/arch/sparc64/kernel/reboot.c b/arch/sparc64/kernel/reboot.c
new file mode 100644
index 00000000000..ef89d3d6974
--- /dev/null
+++ b/arch/sparc64/kernel/reboot.c
@@ -0,0 +1,53 @@
+/* reboot.c: reboot/shutdown/halt/poweroff handling
+ *
+ * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
+ */
+#include <linux/kernel.h>
+#include <linux/reboot.h>
+#include <linux/module.h>
+#include <linux/pm.h>
+
+#include <asm/system.h>
+#include <asm/oplib.h>
+#include <asm/prom.h>
+
+/* sysctl - toggle power-off restriction for serial console
+ * systems in machine_power_off()
+ */
+int scons_pwroff = 1;
+
+/* This isn't actually used, it exists merely to satisfy the
+ * reference in kernel/sys.c
+ */
+void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
+
+void machine_power_off(void)
+{
+        if (strcmp(of_console_device->type, "serial") || scons_pwroff)
+                prom_halt_power_off();
+
+        prom_halt();
+}
+
+void machine_halt(void)
+{
+        prom_halt();
+        panic("Halt failed!");
+}
+
+void machine_restart(char *cmd)
+{
+        char *p;
+
+        p = strchr(reboot_command, '\n');
+        if (p)
+                *p = 0;
+        if (cmd)
+                prom_reboot(cmd);
+        if (*reboot_command)
+                prom_reboot(reboot_command);
+        prom_reboot("");
+        panic("Reboot failed!");
+}
+
diff --git a/arch/sparc64/kernel/sbus.c b/arch/sparc64/kernel/sbus.c
index e33a8a660e9..2ead310066d 100644
--- a/arch/sparc64/kernel/sbus.c
+++ b/arch/sparc64/kernel/sbus.c
@@ -11,15 +11,17 @@
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/page.h>
-#include <asm/sbus.h>
 #include <asm/io.h>
 #include <asm/upa.h>
 #include <asm/cache.h>
 #include <asm/dma.h>
 #include <asm/irq.h>
 #include <asm/prom.h>
+#include <asm/oplib.h>
 #include <asm/starfire.h>
 
 #include "iommu_common.h"
@@ -52,13 +54,23 @@
 #define STRBUF_TAG_VALID        0x02UL
 
 /* Enable 64-bit DVMA mode for the given device. */
-void sbus_set_sbus64(struct sbus_dev *sdev, int bursts)
+void sbus_set_sbus64(struct device *dev, int bursts)
 {
-        struct iommu *iommu = sdev->ofdev.dev.archdata.iommu;
-        int slot = sdev->slot;
+        struct iommu *iommu = dev->archdata.iommu;
+        struct of_device *op = to_of_device(dev);
+        const struct linux_prom_registers *regs;
         unsigned long cfg_reg;
+        int slot;
         u64 val;
 
+        regs = of_get_property(op->node, "reg", NULL);
+        if (!regs) {
+                printk(KERN_ERR "sbus_set_sbus64: Cannot find regs for %s\n",
+                       op->node->full_name);
+                return;
+        }
+        slot = regs->which_io;
+
         cfg_reg = iommu->write_complete_reg;
         switch (slot) {
         case 0:
@@ -191,10 +203,9 @@ static unsigned long sysio_imap_to_iclr(unsigned long imap)
         return imap + diff;
 }
 
-unsigned int sbus_build_irq(void *buscookie, unsigned int ino)
+static unsigned int sbus_build_irq(struct of_device *op, unsigned int ino)
 {
-        struct sbus_bus *sbus = (struct sbus_bus *)buscookie;
-        struct iommu *iommu = sbus->ofdev.dev.archdata.iommu;
+        struct iommu *iommu = op->dev.archdata.iommu;
         unsigned long reg_base = iommu->write_complete_reg - 0x2000UL;
         unsigned long imap, iclr;
         int sbus_level = 0;
@@ -255,12 +266,12 @@ unsigned int sbus_build_irq(void *buscookie, unsigned int ino)
 #define  SYSIO_UEAFSR_RESV2 0x0000001fffffffffUL /* Reserved                  */
 static irqreturn_t sysio_ue_handler(int irq, void *dev_id)
 {
-        struct sbus_bus *sbus = dev_id;
-        struct iommu *iommu = sbus->ofdev.dev.archdata.iommu;
+        struct of_device *op = dev_id;
+        struct iommu *iommu = op->dev.archdata.iommu;
         unsigned long reg_base = iommu->write_complete_reg - 0x2000UL;
         unsigned long afsr_reg, afar_reg;
         unsigned long afsr, afar, error_bits;
-        int reported;
+        int reported, portid;
 
         afsr_reg = reg_base + SYSIO_UE_AFSR;
         afar_reg = reg_base + SYSIO_UE_AFAR;
@@ -275,9 +286,11 @@ static irqreturn_t sysio_ue_handler(int irq, void *dev_id)
                  SYSIO_UEAFSR_SPIO | SYSIO_UEAFSR_SDRD | SYSIO_UEAFSR_SDWR);
         upa_writeq(error_bits, afsr_reg);
 
+        portid = of_getintprop_default(op->node, "portid", -1);
+
         /* Log the error. */
         printk("SYSIO[%x]: Uncorrectable ECC Error, primary error type[%s]\n",
-               sbus->portid,
+               portid,
                (((error_bits & SYSIO_UEAFSR_PPIO) ?
                  "PIO" :
                  ((error_bits & SYSIO_UEAFSR_PDRD) ?
@@ -285,12 +298,12 @@ static irqreturn_t sysio_ue_handler(int irq, void *dev_id)
                   ((error_bits & SYSIO_UEAFSR_PDWR) ?
                    "DVMA Write" : "???")))));
         printk("SYSIO[%x]: DOFF[%lx] SIZE[%lx] MID[%lx]\n",
-               sbus->portid,
+               portid,
                (afsr & SYSIO_UEAFSR_DOFF) >> 45UL,
                (afsr & SYSIO_UEAFSR_SIZE) >> 42UL,
                (afsr & SYSIO_UEAFSR_MID) >> 37UL);
-        printk("SYSIO[%x]: AFAR[%016lx]\n", sbus->portid, afar);
-        printk("SYSIO[%x]: Secondary UE errors [", sbus->portid);
+        printk("SYSIO[%x]: AFAR[%016lx]\n", portid, afar);
+        printk("SYSIO[%x]: Secondary UE errors [", portid);
         reported = 0;
         if (afsr & SYSIO_UEAFSR_SPIO) {
                 reported++;
@@ -327,12 +340,12 @@ static irqreturn_t sysio_ue_handler(int irq, void *dev_id)
 #define  SYSIO_CEAFSR_RESV2 0x0000001fffffffffUL /* Reserved                  */
 static irqreturn_t sysio_ce_handler(int irq, void *dev_id)
 {
-        struct sbus_bus *sbus = dev_id;
-        struct iommu *iommu = sbus->ofdev.dev.archdata.iommu;
+        struct of_device *op = dev_id;
+        struct iommu *iommu = op->dev.archdata.iommu;
         unsigned long reg_base = iommu->write_complete_reg - 0x2000UL;
         unsigned long afsr_reg, afar_reg;
         unsigned long afsr, afar, error_bits;
-        int reported;
+        int reported, portid;
 
         afsr_reg = reg_base + SYSIO_CE_AFSR;
         afar_reg = reg_base + SYSIO_CE_AFAR;
@@ -347,8 +360,10 @@ static irqreturn_t sysio_ce_handler(int irq, void *dev_id)
                  SYSIO_CEAFSR_SPIO | SYSIO_CEAFSR_SDRD | SYSIO_CEAFSR_SDWR);
         upa_writeq(error_bits, afsr_reg);
 
+        portid = of_getintprop_default(op->node, "portid", -1);
+
         printk("SYSIO[%x]: Correctable ECC Error, primary error type[%s]\n",
-               sbus->portid,
+               portid,
                (((error_bits & SYSIO_CEAFSR_PPIO) ?
                  "PIO" :
                  ((error_bits & SYSIO_CEAFSR_PDRD) ?
@@ -360,14 +375,14 @@ static irqreturn_t sysio_ce_handler(int irq, void *dev_id)
          * XXX UDB CE trap handler does... -DaveM
          */
         printk("SYSIO[%x]: DOFF[%lx] ECC Syndrome[%lx] Size[%lx] MID[%lx]\n",
-               sbus->portid,
+               portid,
                (afsr & SYSIO_CEAFSR_DOFF) >> 45UL,
                (afsr & SYSIO_CEAFSR_ESYND) >> 48UL,
                (afsr & SYSIO_CEAFSR_SIZE) >> 42UL,
                (afsr & SYSIO_CEAFSR_MID) >> 37UL);
-        printk("SYSIO[%x]: AFAR[%016lx]\n", sbus->portid, afar);
+        printk("SYSIO[%x]: AFAR[%016lx]\n", portid, afar);
 
-        printk("SYSIO[%x]: Secondary CE errors [", sbus->portid);
+        printk("SYSIO[%x]: Secondary CE errors [", portid);
         reported = 0;
         if (afsr & SYSIO_CEAFSR_SPIO) {
                 reported++;
@@ -404,11 +419,11 @@ static irqreturn_t sysio_ce_handler(int irq, void *dev_id)
 #define  SYSIO_SBAFSR_RESV3 0x0000001fffffffffUL /* Reserved                  */
 static irqreturn_t sysio_sbus_error_handler(int irq, void *dev_id)
 {
-        struct sbus_bus *sbus = dev_id;
-        struct iommu *iommu = sbus->ofdev.dev.archdata.iommu;
+        struct of_device *op = dev_id;
+        struct iommu *iommu = op->dev.archdata.iommu;
         unsigned long afsr_reg, afar_reg, reg_base;
         unsigned long afsr, afar, error_bits;
-        int reported;
+        int reported, portid;
 
         reg_base = iommu->write_complete_reg - 0x2000UL;
         afsr_reg = reg_base + SYSIO_SBUS_AFSR;
@@ -423,9 +438,11 @@ static irqreturn_t sysio_sbus_error_handler(int irq, void *dev_id)
                  SYSIO_SBAFSR_SLE | SYSIO_SBAFSR_STO | SYSIO_SBAFSR_SBERR);
         upa_writeq(error_bits, afsr_reg);
 
+        portid = of_getintprop_default(op->node, "portid", -1);
+
         /* Log the error. */
         printk("SYSIO[%x]: SBUS Error, primary error type[%s] read(%d)\n",
-               sbus->portid,
+               portid,
                (((error_bits & SYSIO_SBAFSR_PLE) ?
                  "Late PIO Error" :
                  ((error_bits & SYSIO_SBAFSR_PTO) ?
@@ -434,11 +451,11 @@ static irqreturn_t sysio_sbus_error_handler(int irq, void *dev_id)
                    "Error Ack" : "???")))),
                (afsr & SYSIO_SBAFSR_RD) ? 1 : 0);
         printk("SYSIO[%x]: size[%lx] MID[%lx]\n",
-               sbus->portid,
+               portid,
                (afsr & SYSIO_SBAFSR_SIZE) >> 42UL,
                (afsr & SYSIO_SBAFSR_MID) >> 37UL);
-        printk("SYSIO[%x]: AFAR[%016lx]\n", sbus->portid, afar);
-        printk("SYSIO[%x]: Secondary SBUS errors [", sbus->portid);
+        printk("SYSIO[%x]: AFAR[%016lx]\n", portid, afar);
+        printk("SYSIO[%x]: Secondary SBUS errors [", portid);
         reported = 0;
         if (afsr & SYSIO_SBAFSR_SLE) {
                 reported++;
@@ -470,34 +487,37 @@ static irqreturn_t sysio_sbus_error_handler(int irq, void *dev_id)
 #define SYSIO_CE_INO            0x35
 #define SYSIO_SBUSERR_INO       0x36
 
-static void __init sysio_register_error_handlers(struct sbus_bus *sbus)
+static void __init sysio_register_error_handlers(struct of_device *op)
 {
-        struct iommu *iommu = sbus->ofdev.dev.archdata.iommu;
+        struct iommu *iommu = op->dev.archdata.iommu;
         unsigned long reg_base = iommu->write_complete_reg - 0x2000UL;
         unsigned int irq;
         u64 control;
+        int portid;
+
+        portid = of_getintprop_default(op->node, "portid", -1);
 
-        irq = sbus_build_irq(sbus, SYSIO_UE_INO);
+        irq = sbus_build_irq(op, SYSIO_UE_INO);
         if (request_irq(irq, sysio_ue_handler, 0,
-                        "SYSIO_UE", sbus) < 0) {
+                        "SYSIO_UE", op) < 0) {
                 prom_printf("SYSIO[%x]: Cannot register UE interrupt.\n",
-                            sbus->portid);
+                            portid);
                 prom_halt();
         }
 
-        irq = sbus_build_irq(sbus, SYSIO_CE_INO);
+        irq = sbus_build_irq(op, SYSIO_CE_INO);
         if (request_irq(irq, sysio_ce_handler, 0,
-                        "SYSIO_CE", sbus) < 0) {
+                        "SYSIO_CE", op) < 0) {
                 prom_printf("SYSIO[%x]: Cannot register CE interrupt.\n",
-                            sbus->portid);
+                            portid);
                 prom_halt();
         }
 
-        irq = sbus_build_irq(sbus, SYSIO_SBUSERR_INO);
+        irq = sbus_build_irq(op, SYSIO_SBUSERR_INO);
         if (request_irq(irq, sysio_sbus_error_handler, 0,
-                        "SYSIO_SBERR", sbus) < 0) {
+                        "SYSIO_SBERR", op) < 0) {
                 prom_printf("SYSIO[%x]: Cannot register SBUS Error interrupt.\n",
-                            sbus->portid);
+                            portid);
                 prom_halt();
         }
 
@@ -513,19 +533,15 @@ static void __init sysio_register_error_handlers(struct sbus_bus *sbus)
 }
 
 /* Boot time initialization. */
-static void __init sbus_iommu_init(int __node, struct sbus_bus *sbus)
+static void __init sbus_iommu_init(struct of_device *op)
 {
         const struct linux_prom64_registers *pr;
-        struct device_node *dp;
+        struct device_node *dp = op->node;
         struct iommu *iommu;
         struct strbuf *strbuf;
         unsigned long regs, reg_base;
+        int i, portid;
         u64 control;
-        int i;
-
-        dp = of_find_node_by_phandle(__node);
-
-        sbus->portid = of_getintprop_default(dp, "upa-portid", -1);
 
         pr = of_get_property(dp, "reg", NULL);
         if (!pr) {
@@ -542,9 +558,9 @@ static void __init sbus_iommu_init(int __node, struct sbus_bus *sbus)
         if (!strbuf)
                 goto fatal_memory_error;
 
-        sbus->ofdev.dev.archdata.iommu = iommu;
-        sbus->ofdev.dev.archdata.stc = strbuf;
-        sbus->ofdev.dev.archdata.numa_node = -1;
+        op->dev.archdata.iommu = iommu;
+        op->dev.archdata.stc = strbuf;
+        op->dev.archdata.numa_node = -1;
 
         reg_base = regs + SYSIO_IOMMUREG_BASE;
         iommu->iommu_control = reg_base + IOMMU_CONTROL;
@@ -572,8 +588,9 @@ static void __init sbus_iommu_init(int __node, struct sbus_bus *sbus)
          */
         iommu->write_complete_reg = regs + 0x2000UL;
 
-        printk("SYSIO: UPA portID %x, at %016lx\n",
-               sbus->portid, regs);
+        portid = of_getintprop_default(op->node, "portid", -1);
+        printk(KERN_INFO "SYSIO: UPA portID %x, at %016lx\n",
+               portid, regs);
 
         /* Setup for TSB_SIZE=7, TBW_SIZE=0, MMU_DE=1, MMU_EN=1 */
         if (iommu_table_init(iommu, IO_TSB_SIZE, MAP_BASE, 0xffffffff, -1))
@@ -631,56 +648,27 @@ static void __init sbus_iommu_init(int __node, struct sbus_bus *sbus)
 
         /* Now some Xfire specific grot... */
         if (this_is_starfire)
-                starfire_hookup(sbus->portid);
+                starfire_hookup(portid);
 
-        sysio_register_error_handlers(sbus);
+        sysio_register_error_handlers(op);
         return;
 
 fatal_memory_error:
         prom_printf("sbus_iommu_init: Fatal memory allocation error.\n");
 }
 
-void sbus_fill_device_irq(struct sbus_dev *sdev)
+static int __init sbus_init(void)
 {
-        struct device_node *dp = of_find_node_by_phandle(sdev->prom_node);
-        const struct linux_prom_irqs *irqs;
-
-        irqs = of_get_property(dp, "interrupts", NULL);
-        if (!irqs) {
-                sdev->irqs[0] = 0;
-                sdev->num_irqs = 0;
-        } else {
-                unsigned int pri = irqs[0].pri;
+        struct device_node *dp;
 
-                sdev->num_irqs = 1;
-                if (pri < 0x20)
-                        pri += sdev->slot * 8;
+        for_each_node_by_name(dp, "sbus") {
+                struct of_device *op = of_find_device_by_node(dp);
 
-                sdev->irqs[0] = sbus_build_irq(sdev->bus, pri);
+                sbus_iommu_init(op);
+                of_propagate_archdata(op);
         }
-}
 
-void __init sbus_arch_bus_ranges_init(struct device_node *pn, struct sbus_bus *sbus)
-{
-}
-
-void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp)
-{
-        sbus_iommu_init(dp->node, sbus);
-}
-
-void __init sbus_setup_arch_props(struct sbus_bus *sbus, struct device_node *dp)
-{
-}
-
-int __init sbus_arch_preinit(void)
-{
         return 0;
 }
 
-void __init sbus_arch_postinit(void)
-{
-        extern void firetruck_init(void);
-
-        firetruck_init();
-}
+subsys_initcall(sbus_init);
diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c
index 0804f71df6c..30bba8b0a3b 100644
--- a/arch/sparc64/kernel/sparc64_ksyms.c
+++ b/arch/sparc64/kernel/sparc64_ksyms.c
@@ -36,7 +36,6 @@
 #include <asm/elf.h>
 #include <asm/head.h>
 #include <asm/smp.h>
-#include <asm/mostek.h>
 #include <asm/ptrace.h>
 #include <asm/uaccess.h>
 #include <asm/checksum.h>
@@ -44,12 +43,8 @@
 #include <asm/pgalloc.h>
 #include <asm/cacheflush.h>
 #ifdef CONFIG_SBUS
-#include <asm/sbus.h>
 #include <asm/dma.h>
 #endif
-#ifdef CONFIG_PCI
-#include <asm/ebus.h>
-#endif
 #include <asm/ns87303.h>
 #include <asm/timer.h>
 #include <asm/cpudata.h>
@@ -68,7 +63,6 @@ extern void *__memscan_zero(void *, size_t);
 extern void *__memscan_generic(void *, int, size_t);
 extern int __memcmp(const void *, const void *, __kernel_size_t);
 extern __kernel_size_t strlen(const char *);
-extern void syscall_trace(struct pt_regs *, int);
 extern void sys_sigsuspend(void);
 extern int compat_sys_ioctl(unsigned int fd, unsigned int cmd, u32 arg);
 extern int (*handle_mathemu)(struct pt_regs *, struct fpustate *);
@@ -154,26 +148,12 @@ EXPORT_SYMBOL(flush_dcache_page);
 EXPORT_SYMBOL(__flush_dcache_range);
 #endif
 
-EXPORT_SYMBOL(mostek_lock);
-EXPORT_SYMBOL(mstk48t02_regs);
 #ifdef CONFIG_SUN_AUXIO
 EXPORT_SYMBOL(auxio_set_led);
 EXPORT_SYMBOL(auxio_set_lte);
 #endif
 #ifdef CONFIG_SBUS
-EXPORT_SYMBOL(sbus_root);
-EXPORT_SYMBOL(dma_chain);
 EXPORT_SYMBOL(sbus_set_sbus64);
-EXPORT_SYMBOL(sbus_alloc_consistent);
-EXPORT_SYMBOL(sbus_free_consistent);
-EXPORT_SYMBOL(sbus_map_single);
-EXPORT_SYMBOL(sbus_unmap_single);
-EXPORT_SYMBOL(sbus_map_sg);
-EXPORT_SYMBOL(sbus_unmap_sg);
-EXPORT_SYMBOL(sbus_dma_sync_single_for_cpu);
-EXPORT_SYMBOL(sbus_dma_sync_single_for_device);
-EXPORT_SYMBOL(sbus_dma_sync_sg_for_cpu);
-EXPORT_SYMBOL(sbus_dma_sync_sg_for_device);
 #endif
 EXPORT_SYMBOL(outsb);
 EXPORT_SYMBOL(outsw);
@@ -182,7 +162,6 @@ EXPORT_SYMBOL(insb);
 EXPORT_SYMBOL(insw);
 EXPORT_SYMBOL(insl);
 #ifdef CONFIG_PCI
-EXPORT_SYMBOL(ebus_chain);
 EXPORT_SYMBOL(pci_alloc_consistent);
 EXPORT_SYMBOL(pci_free_consistent);
 EXPORT_SYMBOL(pci_map_single);
@@ -300,3 +279,5 @@ EXPORT_SYMBOL(xor_niagara_2);
 EXPORT_SYMBOL(xor_niagara_3);
 EXPORT_SYMBOL(xor_niagara_4);
 EXPORT_SYMBOL(xor_niagara_5);
+
+EXPORT_SYMBOL_GPL(real_hard_smp_processor_id);
diff --git a/arch/sparc64/kernel/sstate.c b/arch/sparc64/kernel/sstate.c
index 5b6e75b7f05..8cdbe5946b4 100644
--- a/arch/sparc64/kernel/sstate.c
+++ b/arch/sparc64/kernel/sstate.c
@@ -1,14 +1,15 @@
 /* sstate.c: System soft state support.
  *
- * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
+ * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net>
  */
 
 #include <linux/kernel.h>
 #include <linux/notifier.h>
+#include <linux/reboot.h>
 #include <linux/init.h>
 
 #include <asm/hypervisor.h>
-#include <asm/sstate.h>
+#include <asm/spitfire.h>
 #include <asm/oplib.h>
 #include <asm/head.h>
 #include <asm/io.h>
@@ -50,31 +51,34 @@ static const char rebooting_msg[32] __attribute__((aligned(32))) =
 static const char panicing_msg[32] __attribute__((aligned(32))) =
         "Linux panicing";
 
-void sstate_booting(void)
+static int sstate_reboot_call(struct notifier_block *np, unsigned long type, void *_unused)
 {
-        do_set_sstate(HV_SOFT_STATE_TRANSITION, booting_msg);
-}
+        const char *msg;
 
-void sstate_running(void)
-{
-        do_set_sstate(HV_SOFT_STATE_NORMAL, running_msg);
-}
+        switch (type) {
+        case SYS_DOWN:
+        default:
+                msg = rebooting_msg;
+                break;
 
-void sstate_halt(void)
-{
-        do_set_sstate(HV_SOFT_STATE_TRANSITION, halting_msg);
-}
+        case SYS_HALT:
+                msg = halting_msg;
+                break;
 
-void sstate_poweroff(void)
-{
-        do_set_sstate(HV_SOFT_STATE_TRANSITION, poweroff_msg);
-}
+        case SYS_POWER_OFF:
+                msg = poweroff_msg;
+                break;
+        }
 
-void sstate_reboot(void)
-{
-        do_set_sstate(HV_SOFT_STATE_TRANSITION, rebooting_msg);
+        do_set_sstate(HV_SOFT_STATE_TRANSITION, msg);
+
+        return NOTIFY_OK;
 }
 
+static struct notifier_block sstate_reboot_notifier = {
+        .notifier_call = sstate_reboot_call,
+};
+
 static int sstate_panic_event(struct notifier_block *n, unsigned long event, void *ptr)
 {
         do_set_sstate(HV_SOFT_STATE_TRANSITION, panicing_msg);
@@ -87,18 +91,37 @@ static struct notifier_block sstate_panic_block = {
         .priority       =       INT_MAX,
 };
 
-void __init sun4v_sstate_init(void)
+static int __init sstate_init(void)
 {
         unsigned long major, minor;
 
+        if (tlb_type != hypervisor)
+                return 0;
+
         major = 1;
         minor = 0;
         if (sun4v_hvapi_register(HV_GRP_SOFT_STATE, major, &minor))
-                return;
+                return 0;
 
         hv_supports_soft_state = 1;
 
         prom_sun4v_guest_soft_state();
+
+        do_set_sstate(HV_SOFT_STATE_TRANSITION, booting_msg);
+
         atomic_notifier_chain_register(&panic_notifier_list,
                                        &sstate_panic_block);
+        register_reboot_notifier(&sstate_reboot_notifier);
+
+        return 0;
 }
+
+core_initcall(sstate_init);
+
+static int __init sstate_running(void)
+{
+        do_set_sstate(HV_SOFT_STATE_NORMAL, running_msg);
+        return 0;
+}
+
+late_initcall(sstate_running);
diff --git a/arch/sparc64/kernel/starfire.c b/arch/sparc64/kernel/starfire.c
index 7461581b3bb..060d0f3a615 100644
--- a/arch/sparc64/kernel/starfire.c
+++ b/arch/sparc64/kernel/starfire.c
@@ -28,11 +28,6 @@ void check_if_starfire(void)
                 this_is_starfire = 1;
 }
 
-void starfire_cpu_setup(void)
-{
-        /* Currently, nothing to do.  */
-}
-
 int starfire_hard_smp_processor_id(void)
 {
         return upa_readl(0x1fff40000d0UL);
diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c
index 3d118531baf..3320c9d0075 100644
--- a/arch/sparc64/kernel/sys_sparc32.c
+++ b/arch/sparc64/kernel/sys_sparc32.c
@@ -575,14 +575,6 @@ asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv,
         return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
 }
 
-/* These are here just in case some old sparc32 binary calls it. */
-asmlinkage long sys32_pause(void)
-{
-        current->state = TASK_INTERRUPTIBLE;
-        schedule();
-        return -ERESTARTNOHAND;
-}
-
 asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
                                         char __user *ubuf,
                                         compat_size_t count,
diff --git a/arch/sparc64/kernel/syscalls.S b/arch/sparc64/kernel/syscalls.S
index a2f24270ed8..7a6786a7136 100644
--- a/arch/sparc64/kernel/syscalls.S
+++ b/arch/sparc64/kernel/syscalls.S
@@ -65,9 +65,8 @@ sys32_rt_sigreturn:
         andcc   %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0
         be,pt   %icc, rtrap
          nop
-        add     %sp, PTREGS_OFF, %o0
-        call    syscall_trace
-         mov    1, %o1
+        call    syscall_trace_leave
+         add    %sp, PTREGS_OFF, %o0
         ba,pt   %xcc, rtrap
          nop
 
@@ -159,9 +158,8 @@ linux_sparc_ni_syscall:
          or     %l7, %lo(sys_ni_syscall), %l7
 
 linux_syscall_trace32:
-        add     %sp, PTREGS_OFF, %o0
-        call    syscall_trace
-         clr    %o1
+        call    syscall_trace_enter
+         add    %sp, PTREGS_OFF, %o0
         brnz,pn %o0, 3f
          mov    -ENOSYS, %o0
         srl     %i0, 0, %o0
@@ -172,9 +170,8 @@ linux_syscall_trace32:
          srl    %i3, 0, %o3
 
 linux_syscall_trace:
-        add     %sp, PTREGS_OFF, %o0
-        call    syscall_trace
-         clr    %o1
+        call    syscall_trace_enter
+         add    %sp, PTREGS_OFF, %o0
         brnz,pn %o0, 3f
          mov    -ENOSYS, %o0
         mov     %i0, %o0
@@ -275,9 +272,8 @@ ret_sys_call:
         b,pt    %xcc, rtrap
          stx    %l2, [%sp + PTREGS_OFF + PT_V9_TNPC]
 linux_syscall_trace2:
-        add     %sp, PTREGS_OFF, %o0
-        call    syscall_trace
-         mov    1, %o1
+        call    syscall_trace_leave
+         add    %sp, PTREGS_OFF, %o0
         stx     %l1, [%sp + PTREGS_OFF + PT_V9_TPC]
         ba,pt   %xcc, rtrap
          stx    %l2, [%sp + PTREGS_OFF + PT_V9_TNPC]
diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S
index 0fdbf3ba956..5daee4b04dd 100644
--- a/arch/sparc64/kernel/systbls.S
+++ b/arch/sparc64/kernel/systbls.S
@@ -23,7 +23,7 @@ sys_call_table32:
 /*10*/  .word sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys32_mknod
 /*15*/  .word sys_chmod, sys_lchown16, sparc_brk, sys32_perfctr, sys32_lseek
 /*20*/  .word sys_getpid, sys_capget, sys_capset, sys_setuid16, sys_getuid16
-/*25*/  .word sys32_vmsplice, compat_sys_ptrace, sys_alarm, sys32_sigaltstack, sys32_pause
+/*25*/  .word sys32_vmsplice, compat_sys_ptrace, sys_alarm, sys32_sigaltstack, sys_pause
 /*30*/  .word compat_sys_utime, sys_lchown, sys_fchown, sys32_access, sys32_nice
         .word sys_chown, sys_sync, sys32_kill, compat_sys_newstat, sys32_sendfile
 /*40*/  .word compat_sys_newlstat, sys_dup, sys_pipe, compat_sys_times, sys_getuid
diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c
index cc16fdcf98a..80d71a5ce1e 100644
--- a/arch/sparc64/kernel/time.c
+++ b/arch/sparc64/kernel/time.c
@@ -30,13 +30,14 @@
 #include <linux/percpu.h>
 #include <linux/miscdevice.h>
 #include <linux/rtc.h>
+#include <linux/rtc/m48t59.h>
 #include <linux/kernel_stat.h>
 #include <linux/clockchips.h>
 #include <linux/clocksource.h>
 #include <linux/of_device.h>
+#include <linux/platform_device.h>
 
 #include <asm/oplib.h>
-#include <asm/mostek.h>
 #include <asm/timer.h>
 #include <asm/irq.h>
 #include <asm/io.h>
@@ -50,18 +51,7 @@
 
 #include "entry.h"
 
-DEFINE_SPINLOCK(mostek_lock);
 DEFINE_SPINLOCK(rtc_lock);
-void __iomem *mstk48t02_regs = NULL;
-#ifdef CONFIG_PCI
-unsigned long ds1287_regs = 0UL;
-static void __iomem *bq4802_regs;
-#endif
-
-static void __iomem *mstk48t08_regs;
-static void __iomem *mstk48t59_regs;
-
-static int set_rtc_mmss(unsigned long);
 
 #define TICK_PRIV_BIT   (1UL << 63)
 #define TICKCMP_IRQ_BIT (1UL << 63)
@@ -405,313 +395,167 @@ static unsigned long timer_ticks_per_nsec_quotient __read_mostly;
 
 int update_persistent_clock(struct timespec now)
 {
-        return set_rtc_mmss(now.tv_sec);
-}
+        struct rtc_device *rtc = rtc_class_open("rtc0");
+        int err = -1;
 
-/* Kick start a stopped clock (procedure from the Sun NVRAM/hostid FAQ). */
-static void __init kick_start_clock(void)
-{
-        void __iomem *regs = mstk48t02_regs;
-        u8 sec, tmp;
-        int i, count;
-
-        prom_printf("CLOCK: Clock was stopped. Kick start ");
-
-        spin_lock_irq(&mostek_lock);
-
-        /* Turn on the kick start bit to start the oscillator. */
-        tmp = mostek_read(regs + MOSTEK_CREG);
-        tmp |= MSTK_CREG_WRITE;
-        mostek_write(regs + MOSTEK_CREG, tmp);
-        tmp = mostek_read(regs + MOSTEK_SEC);
-        tmp &= ~MSTK_STOP;
-        mostek_write(regs + MOSTEK_SEC, tmp);
-        tmp = mostek_read(regs + MOSTEK_HOUR);
-        tmp |= MSTK_KICK_START;
-        mostek_write(regs + MOSTEK_HOUR, tmp);
-        tmp = mostek_read(regs + MOSTEK_CREG);
-        tmp &= ~MSTK_CREG_WRITE;
-        mostek_write(regs + MOSTEK_CREG, tmp);
-
-        spin_unlock_irq(&mostek_lock);
-
-        /* Delay to allow the clock oscillator to start. */
-        sec = MSTK_REG_SEC(regs);
-        for (i = 0; i < 3; i++) {
-                while (sec == MSTK_REG_SEC(regs))
-                        for (count = 0; count < 100000; count++)
-                                /* nothing */ ;
-                prom_printf(".");
-                sec = MSTK_REG_SEC(regs);
-        }
-        prom_printf("\n");
-
-        spin_lock_irq(&mostek_lock);
-
-        /* Turn off kick start and set a "valid" time and date. */
-        tmp = mostek_read(regs + MOSTEK_CREG);
-        tmp |= MSTK_CREG_WRITE;
-        mostek_write(regs + MOSTEK_CREG, tmp);
-        tmp = mostek_read(regs + MOSTEK_HOUR);
-        tmp &= ~MSTK_KICK_START;
-        mostek_write(regs + MOSTEK_HOUR, tmp);
-        MSTK_SET_REG_SEC(regs,0);
-        MSTK_SET_REG_MIN(regs,0);
-        MSTK_SET_REG_HOUR(regs,0);
-        MSTK_SET_REG_DOW(regs,5);
-        MSTK_SET_REG_DOM(regs,1);
-        MSTK_SET_REG_MONTH(regs,8);
-        MSTK_SET_REG_YEAR(regs,1996 - MSTK_YEAR_ZERO);
-        tmp = mostek_read(regs + MOSTEK_CREG);
-        tmp &= ~MSTK_CREG_WRITE;
-        mostek_write(regs + MOSTEK_CREG, tmp);
-
-        spin_unlock_irq(&mostek_lock);
-
-        /* Ensure the kick start bit is off. If it isn't, turn it off. */
-        while (mostek_read(regs + MOSTEK_HOUR) & MSTK_KICK_START) {
-                prom_printf("CLOCK: Kick start still on!\n");
-
-                spin_lock_irq(&mostek_lock);
-
-                tmp = mostek_read(regs + MOSTEK_CREG);
-                tmp |= MSTK_CREG_WRITE;
-                mostek_write(regs + MOSTEK_CREG, tmp);
-
-                tmp = mostek_read(regs + MOSTEK_HOUR);
-                tmp &= ~MSTK_KICK_START;
-                mostek_write(regs + MOSTEK_HOUR, tmp);
-
-                tmp = mostek_read(regs + MOSTEK_CREG);
-                tmp &= ~MSTK_CREG_WRITE;
-                mostek_write(regs + MOSTEK_CREG, tmp);
-
-                spin_unlock_irq(&mostek_lock);
+        if (rtc) {
+                err = rtc_set_mmss(rtc, now.tv_sec);
+                rtc_class_close(rtc);
         }
 
-        prom_printf("CLOCK: Kick start procedure successful.\n");
+        return err;
 }
 
-/* Return nonzero if the clock chip battery is low. */
-static int __init has_low_battery(void)
-{
-        void __iomem *regs = mstk48t02_regs;
-        u8 data1, data2;
-
-        spin_lock_irq(&mostek_lock);
+unsigned long cmos_regs;
+EXPORT_SYMBOL(cmos_regs);
 
-        data1 = mostek_read(regs + MOSTEK_EEPROM);      /* Read some data. */
-        mostek_write(regs + MOSTEK_EEPROM, ~data1);     /* Write back the complement. */
-        data2 = mostek_read(regs + MOSTEK_EEPROM);      /* Read back the complement. */
-        mostek_write(regs + MOSTEK_EEPROM, data1);      /* Restore original value. */
+static struct resource rtc_cmos_resource;
 
-        spin_unlock_irq(&mostek_lock);
-
-        return (data1 == data2);        /* Was the write blocked? */
-}
+static struct platform_device rtc_cmos_device = {
+        .name           = "rtc_cmos",
+        .id             = -1,
+        .resource       = &rtc_cmos_resource,
+        .num_resources  = 1,
+};
 
-static void __init mostek_set_system_time(void __iomem *mregs)
+static int __devinit rtc_probe(struct of_device *op, const struct of_device_id *match)
 {
-        unsigned int year, mon, day, hour, min, sec;
-        u8 tmp;
-
-        spin_lock_irq(&mostek_lock);
+        struct resource *r;
 
-        /* Traditional Mostek chip. */
-        tmp = mostek_read(mregs + MOSTEK_CREG);
-        tmp |= MSTK_CREG_READ;
-        mostek_write(mregs + MOSTEK_CREG, tmp);
+        printk(KERN_INFO "%s: RTC regs at 0x%lx\n",
+               op->node->full_name, op->resource[0].start);
 
-        sec = MSTK_REG_SEC(mregs);
-        min = MSTK_REG_MIN(mregs);
-        hour = MSTK_REG_HOUR(mregs);
-        day = MSTK_REG_DOM(mregs);
-        mon = MSTK_REG_MONTH(mregs);
-        year = MSTK_CVT_YEAR( MSTK_REG_YEAR(mregs) );
-
-        xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
-        xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
-        set_normalized_timespec(&wall_to_monotonic,
-                                -xtime.tv_sec, -xtime.tv_nsec);
+        /* The CMOS RTC driver only accepts IORESOURCE_IO, so cons
+         * up a fake resource so that the probe works for all cases.
+         * When the RTC is behind an ISA bus it will have IORESOURCE_IO
+         * already, whereas when it's behind EBUS is will be IORESOURCE_MEM.
+         */
 
-        tmp = mostek_read(mregs + MOSTEK_CREG);
-        tmp &= ~MSTK_CREG_READ;
-        mostek_write(mregs + MOSTEK_CREG, tmp);
+        r = &rtc_cmos_resource;
+        r->flags = IORESOURCE_IO;
+        r->name = op->resource[0].name;
+        r->start = op->resource[0].start;
+        r->end = op->resource[0].end;
 
-        spin_unlock_irq(&mostek_lock);
+        cmos_regs = op->resource[0].start;
+        return platform_device_register(&rtc_cmos_device);
 }
 
-/* Probe for the real time clock chip. */
-static void __init set_system_time(void)
-{
-        unsigned int year, mon, day, hour, min, sec;
-        void __iomem *mregs = mstk48t02_regs;
-#ifdef CONFIG_PCI
-        unsigned long dregs = ds1287_regs;
-        void __iomem *bregs = bq4802_regs;
-#else
-        unsigned long dregs = 0UL;
-        void __iomem *bregs = 0UL;
-#endif
-
-        if (!mregs && !dregs && !bregs) {
-                prom_printf("Something wrong, clock regs not mapped yet.\n");
-                prom_halt();
-        }               
-
-        if (mregs) {
-                mostek_set_system_time(mregs);
-                return;
-        }
-
-        if (bregs) {
-                unsigned char val = readb(bregs + 0x0e);
-                unsigned int century;
+static struct of_device_id __initdata rtc_match[] = {
+        {
+                .name = "rtc",
+                .compatible = "m5819",
+        },
+        {
+                .name = "rtc",
+                .compatible = "isa-m5819p",
+        },
+        {
+                .name = "rtc",
+                .compatible = "isa-m5823p",
+        },
+        {
+                .name = "rtc",
+                .compatible = "ds1287",
+        },
+        {},
+};
 
-                /* BQ4802 RTC chip. */
+static struct of_platform_driver rtc_driver = {
+        .match_table    = rtc_match,
+        .probe          = rtc_probe,
+        .driver         = {
+                .name   = "rtc",
+        },
+};
 
-                writeb(val | 0x08, bregs + 0x0e);
+static struct platform_device rtc_bq4802_device = {
+        .name           = "rtc-bq4802",
+        .id             = -1,
+        .num_resources  = 1,
+};
 
-                sec  = readb(bregs + 0x00);
-                min  = readb(bregs + 0x02);
-                hour = readb(bregs + 0x04);
-                day  = readb(bregs + 0x06);
-                mon  = readb(bregs + 0x09);
-                year = readb(bregs + 0x0a);
-                century = readb(bregs + 0x0f);
+static int __devinit bq4802_probe(struct of_device *op, const struct of_device_id *match)
+{
 
-                writeb(val, bregs + 0x0e);
+        printk(KERN_INFO "%s: BQ4802 regs at 0x%lx\n",
+               op->node->full_name, op->resource[0].start);
 
-                BCD_TO_BIN(sec);
-                BCD_TO_BIN(min);
-                BCD_TO_BIN(hour);
-                BCD_TO_BIN(day);
-                BCD_TO_BIN(mon);
-                BCD_TO_BIN(year);
-                BCD_TO_BIN(century);
+        rtc_bq4802_device.resource = &op->resource[0];
+        return platform_device_register(&rtc_bq4802_device);
+}
 
-                year += (century * 100);
-        } else {
-                /* Dallas 12887 RTC chip. */
-
-                do {
-                        sec  = CMOS_READ(RTC_SECONDS);
-                        min  = CMOS_READ(RTC_MINUTES);
-                        hour = CMOS_READ(RTC_HOURS);
-                        day  = CMOS_READ(RTC_DAY_OF_MONTH);
-                        mon  = CMOS_READ(RTC_MONTH);
-                        year = CMOS_READ(RTC_YEAR);
-                } while (sec != CMOS_READ(RTC_SECONDS));
-
-                if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
-                        BCD_TO_BIN(sec);
-                        BCD_TO_BIN(min);
-                        BCD_TO_BIN(hour);
-                        BCD_TO_BIN(day);
-                        BCD_TO_BIN(mon);
-                        BCD_TO_BIN(year);
-                }
-                if ((year += 1900) < 1970)
-                        year += 100;
-        }
+static struct of_device_id __initdata bq4802_match[] = {
+        {
+                .name = "rtc",
+                .compatible = "bq4802",
+        },
+};
 
-        xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
-        xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
-        set_normalized_timespec(&wall_to_monotonic,
-                                -xtime.tv_sec, -xtime.tv_nsec);
-}
+static struct of_platform_driver bq4802_driver = {
+        .match_table    = bq4802_match,
+        .probe          = bq4802_probe,
+        .driver         = {
+                .name   = "bq4802",
+        },
+};
 
-/* davem suggests we keep this within the 4M locked kernel image */
-static u32 starfire_get_time(void)
+static unsigned char mostek_read_byte(struct device *dev, u32 ofs)
 {
-        static char obp_gettod[32];
-        static u32 unix_tod;
+        struct platform_device *pdev = to_platform_device(dev);
+        struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+        void __iomem *regs;
+        unsigned char val;
 
-        sprintf(obp_gettod, "h# %08x unix-gettod",
-                (unsigned int) (long) &unix_tod);
-        prom_feval(obp_gettod);
+        regs = (void __iomem *) pdev->resource[0].start;
+        val = readb(regs + ofs);
 
-        return unix_tod;
+        /* the year 0 is 1968 */
+        if (ofs == pdata->offset + M48T59_YEAR) {
+                val += 0x68;
+                if ((val & 0xf) > 9)
+                        val += 6;
+        }
+        return val;
 }
 
-static int starfire_set_time(u32 val)
+static void mostek_write_byte(struct device *dev, u32 ofs, u8 val)
 {
-        /* Do nothing, time is set using the service processor
-         * console on this platform.
-         */
-        return 0;
-}
+        struct platform_device *pdev = to_platform_device(dev);
+        struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+        void __iomem *regs;
 
-static u32 hypervisor_get_time(void)
-{
-        unsigned long ret, time;
-        int retries = 10000;
-
-retry:
-        ret = sun4v_tod_get(&time);
-        if (ret == HV_EOK)
-                return time;
-        if (ret == HV_EWOULDBLOCK) {
-                if (--retries > 0) {
-                        udelay(100);
-                        goto retry;
-                }
-                printk(KERN_WARNING "SUN4V: tod_get() timed out.\n");
-                return 0;
+        regs = (void __iomem *) pdev->resource[0].start;
+        if (ofs == pdata->offset + M48T59_YEAR) {
+                if (val < 0x68)
+                        val += 0x32;
+                else
+                        val -= 0x68;
+                if ((val & 0xf) > 9)
+                        val += 6;
+                if ((val & 0xf0) > 0x9A)
+                        val += 0x60;
         }
-        printk(KERN_WARNING "SUN4V: tod_get() not supported.\n");
-        return 0;
+        writeb(val, regs + ofs);
 }
 
-static int hypervisor_set_time(u32 secs)
-{
-        unsigned long ret;
-        int retries = 10000;
-
-retry:
-        ret = sun4v_tod_set(secs);
-        if (ret == HV_EOK)
-                return 0;
-        if (ret == HV_EWOULDBLOCK) {
-                if (--retries > 0) {
-                        udelay(100);
-                        goto retry;
-                }
-                printk(KERN_WARNING "SUN4V: tod_set() timed out.\n");
-                return -EAGAIN;
-        }
-        printk(KERN_WARNING "SUN4V: tod_set() not supported.\n");
-        return -EOPNOTSUPP;
-}
+static struct m48t59_plat_data m48t59_data = {
+        .read_byte      = mostek_read_byte,
+        .write_byte     = mostek_write_byte,
+};
 
-static int __init clock_model_matches(const char *model)
-{
-        if (strcmp(model, "mk48t02") &&
-            strcmp(model, "mk48t08") &&
-            strcmp(model, "mk48t59") &&
-            strcmp(model, "m5819") &&
-            strcmp(model, "m5819p") &&
-            strcmp(model, "m5823") &&
-            strcmp(model, "ds1287") &&
-            strcmp(model, "bq4802"))
-                return 0;
-
-        return 1;
-}
+static struct platform_device m48t59_rtc = {
+        .name           = "rtc-m48t59",
+        .id             = 0,
+        .num_resources  = 1,
+        .dev    = {
+                .platform_data = &m48t59_data,
+        },
+};
 
-static int __devinit clock_probe(struct of_device *op, const struct of_device_id *match)
+static int __devinit mostek_probe(struct of_device *op, const struct of_device_id *match)
 {
         struct device_node *dp = op->node;
-        const char *model = of_get_property(dp, "model", NULL);
-        const char *compat = of_get_property(dp, "compatible", NULL);
-        unsigned long size, flags;
-        void __iomem *regs;
-
-        if (!model)
-                model = compat;
-
-        if (!model || !clock_model_matches(model))
-                return -ENODEV;
 
         /* On an Enterprise system there can be multiple mostek clocks.
          * We should only match the one that is on the central FHC bus.
@@ -720,88 +564,51 @@ static int __devinit clock_probe(struct of_device *op, const struct of_device_id
             strcmp(dp->parent->parent->name, "central") != 0)
                 return -ENODEV;
 
-        size = (op->resource[0].end - op->resource[0].start) + 1;
-        regs = of_ioremap(&op->resource[0], 0, size, "clock");
-        if (!regs)
-                return -ENOMEM;
-
-#ifdef CONFIG_PCI
-        if (!strcmp(model, "ds1287") ||
-            !strcmp(model, "m5819") ||
-            !strcmp(model, "m5819p") ||
-            !strcmp(model, "m5823")) {
-                ds1287_regs = (unsigned long) regs;
-        } else if (!strcmp(model, "bq4802")) {
-                bq4802_regs = regs;
-        } else
-#endif
-        if (model[5] == '0' && model[6] == '2') {
-                mstk48t02_regs = regs;
-        } else if(model[5] == '0' && model[6] == '8') {
-                mstk48t08_regs = regs;
-                mstk48t02_regs = mstk48t08_regs + MOSTEK_48T08_48T02;
-        } else {
-                mstk48t59_regs = regs;
-                mstk48t02_regs = mstk48t59_regs + MOSTEK_48T59_48T02;
-        }
-
-        printk(KERN_INFO "%s: Clock regs at %p\n", dp->full_name, regs);
-
-        local_irq_save(flags);
-
-        if (mstk48t02_regs != NULL) {
-                /* Report a low battery voltage condition. */
-                if (has_low_battery())
-                        prom_printf("NVRAM: Low battery voltage!\n");
-
-                /* Kick start the clock if it is completely stopped. */
-                if (mostek_read(mstk48t02_regs + MOSTEK_SEC) & MSTK_STOP)
-                        kick_start_clock();
-        }
-
-        set_system_time();
-        
-        local_irq_restore(flags);
+        printk(KERN_INFO "%s: Mostek regs at 0x%lx\n",
+               dp->full_name, op->resource[0].start);
 
-        return 0;
+        m48t59_rtc.resource = &op->resource[0];
+        return platform_device_register(&m48t59_rtc);
 }
 
-static struct of_device_id clock_match[] = {
+static struct of_device_id __initdata mostek_match[] = {
         {
                 .name = "eeprom",
         },
-        {
-                .name = "rtc",
-        },
         {},
 };
 
-static struct of_platform_driver clock_driver = {
-        .match_table    = clock_match,
-        .probe          = clock_probe,
+static struct of_platform_driver mostek_driver = {
+        .match_table    = mostek_match,
+        .probe          = mostek_probe,
         .driver         = {
-                .name   = "clock",
+                .name   = "mostek",
         },
 };
 
+static struct platform_device rtc_sun4v_device = {
+        .name           = "rtc-sun4v",
+        .id             = -1,
+};
+
+static struct platform_device rtc_starfire_device = {
+        .name           = "rtc-starfire",
+        .id             = -1,
+};
+
 static int __init clock_init(void)
 {
-        if (this_is_starfire) {
-                xtime.tv_sec = starfire_get_time();
-                xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
-                set_normalized_timespec(&wall_to_monotonic,
-                                        -xtime.tv_sec, -xtime.tv_nsec);
-                return 0;
-        }
-        if (tlb_type == hypervisor) {
-                xtime.tv_sec = hypervisor_get_time();
-                xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
-                set_normalized_timespec(&wall_to_monotonic,
-                                        -xtime.tv_sec, -xtime.tv_nsec);
-                return 0;
-        }
+        if (this_is_starfire)
+                return platform_device_register(&rtc_starfire_device);
+
+        if (tlb_type == hypervisor)
+                return platform_device_register(&rtc_sun4v_device);
+
+        (void) of_register_driver(&rtc_driver, &of_platform_bus_type);
+        (void) of_register_driver(&mostek_driver, &of_platform_bus_type);
+        (void) of_register_driver(&bq4802_driver, &of_platform_bus_type);
 
-        return of_register_driver(&clock_driver, &of_platform_bus_type);
+        return 0;
 }
 
 /* Must be after subsys_initcall() so that busses are probed.  Must
@@ -814,7 +621,7 @@ fs_initcall(clock_init);
 static unsigned long sparc64_init_timers(void)
 {
         struct device_node *dp;
-        unsigned long clock;
+        unsigned long freq;
 
         dp = of_find_node_by_path("/");
         if (tlb_type == spitfire) {
@@ -827,17 +634,17 @@ static unsigned long sparc64_init_timers(void)
                 if (manuf == 0x17 && impl == 0x13) {
                         /* Hummingbird, aka Ultra-IIe */
                         tick_ops = &hbtick_operations;
-                        clock = of_getintprop_default(dp, "stick-frequency", 0);
+                        freq = of_getintprop_default(dp, "stick-frequency", 0);
                 } else {
                         tick_ops = &tick_operations;
-                        clock = local_cpu_data().clock_tick;
+                        freq = local_cpu_data().clock_tick;
                 }
         } else {
                 tick_ops = &stick_operations;
-                clock = of_getintprop_default(dp, "stick-frequency", 0);
+                freq = of_getintprop_default(dp, "stick-frequency", 0);
         }
 
-        return clock;
+        return freq;
 }
 
 struct freq_table {
@@ -1029,16 +836,16 @@ EXPORT_SYMBOL(udelay);
 
 void __init time_init(void)
 {
-        unsigned long clock = sparc64_init_timers();
+        unsigned long freq = sparc64_init_timers();
 
-        tb_ticks_per_usec = clock / USEC_PER_SEC;
+        tb_ticks_per_usec = freq / USEC_PER_SEC;
 
         timer_ticks_per_nsec_quotient =
-                clocksource_hz2mult(clock, SPARC64_NSEC_PER_CYC_SHIFT);
+                clocksource_hz2mult(freq, SPARC64_NSEC_PER_CYC_SHIFT);
 
         clocksource_tick.name = tick_ops->name;
         clocksource_tick.mult =
-                clocksource_hz2mult(clock,
+                clocksource_hz2mult(freq,
                                     clocksource_tick.shift);
         clocksource_tick.read = tick_ops->get_tick;
 
@@ -1049,7 +856,7 @@ void __init time_init(void)
 
         sparc64_clockevent.name = tick_ops->name;
 
-        setup_clockevent_multiplier(clock);
+        setup_clockevent_multiplier(freq);
 
         sparc64_clockevent.max_delta_ns =
                 clockevent_delta2ns(0x7fffffffffffffffUL, &sparc64_clockevent);
@@ -1070,672 +877,8 @@ unsigned long long sched_clock(void)
                 >> SPARC64_NSEC_PER_CYC_SHIFT;
 }
 
-static int set_rtc_mmss(unsigned long nowtime)
-{
-        int real_seconds, real_minutes, chip_minutes;
-        void __iomem *mregs = mstk48t02_regs;
-#ifdef CONFIG_PCI
-        unsigned long dregs = ds1287_regs;
-        void __iomem *bregs = bq4802_regs;
-#else
-        unsigned long dregs = 0UL;
-        void __iomem *bregs = 0UL;
-#endif
-        unsigned long flags;
-        u8 tmp;
-
-        /* 
-         * Not having a register set can lead to trouble.
-         * Also starfire doesn't have a tod clock.
-         */
-        if (!mregs && !dregs && !bregs)
-                return -1;
-
-        if (mregs) {
-                spin_lock_irqsave(&mostek_lock, flags);
-
-                /* Read the current RTC minutes. */
-                tmp = mostek_read(mregs + MOSTEK_CREG);
-                tmp |= MSTK_CREG_READ;
-                mostek_write(mregs + MOSTEK_CREG, tmp);
-
-                chip_minutes = MSTK_REG_MIN(mregs);
-
-                tmp = mostek_read(mregs + MOSTEK_CREG);
-                tmp &= ~MSTK_CREG_READ;
-                mostek_write(mregs + MOSTEK_CREG, tmp);
-
-                /*
-                 * since we're only adjusting minutes and seconds,
-                 * don't interfere with hour overflow. This avoids
-                 * messing with unknown time zones but requires your
-                 * RTC not to be off by more than 15 minutes
-                 */
-                real_seconds = nowtime % 60;
-                real_minutes = nowtime / 60;
-                if (((abs(real_minutes - chip_minutes) + 15)/30) & 1)
-                        real_minutes += 30;     /* correct for half hour time zone */
-                real_minutes %= 60;
-
-                if (abs(real_minutes - chip_minutes) < 30) {
-                        tmp = mostek_read(mregs + MOSTEK_CREG);
-                        tmp |= MSTK_CREG_WRITE;
-                        mostek_write(mregs + MOSTEK_CREG, tmp);
-
-                        MSTK_SET_REG_SEC(mregs,real_seconds);
-                        MSTK_SET_REG_MIN(mregs,real_minutes);
-
-                        tmp = mostek_read(mregs + MOSTEK_CREG);
-                        tmp &= ~MSTK_CREG_WRITE;
-                        mostek_write(mregs + MOSTEK_CREG, tmp);
-
-                        spin_unlock_irqrestore(&mostek_lock, flags);
-
-                        return 0;
-                } else {
-                        spin_unlock_irqrestore(&mostek_lock, flags);
-
-                        return -1;
-                }
-        } else if (bregs) {
-                int retval = 0;
-                unsigned char val = readb(bregs + 0x0e);
-
-                /* BQ4802 RTC chip. */
-
-                writeb(val | 0x08, bregs + 0x0e);
-
-                chip_minutes = readb(bregs + 0x02);
-                BCD_TO_BIN(chip_minutes);
-                real_seconds = nowtime % 60;
-                real_minutes = nowtime / 60;
-                if (((abs(real_minutes - chip_minutes) + 15)/30) & 1)
-                        real_minutes += 30;
-                real_minutes %= 60;
-
-                if (abs(real_minutes - chip_minutes) < 30) {
-                        BIN_TO_BCD(real_seconds);
-                        BIN_TO_BCD(real_minutes);
-                        writeb(real_seconds, bregs + 0x00);
-                        writeb(real_minutes, bregs + 0x02);
-                } else {
-                        printk(KERN_WARNING
-                               "set_rtc_mmss: can't update from %d to %d\n",
-                               chip_minutes, real_minutes);
-                        retval = -1;
-                }
-
-                writeb(val, bregs + 0x0e);
-
-                return retval;
-        } else {
-                int retval = 0;
-                unsigned char save_control, save_freq_select;
-
-                /* Stolen from arch/i386/kernel/time.c, see there for
-                 * credits and descriptive comments.
-                 */
-                spin_lock_irqsave(&rtc_lock, flags);
-                save_control = CMOS_READ(RTC_CONTROL); /* tell the clock it's being set */
-                CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
-
-                save_freq_select = CMOS_READ(RTC_FREQ_SELECT); /* stop and reset prescaler */
-                CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
-
-                chip_minutes = CMOS_READ(RTC_MINUTES);
-                if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
-                        BCD_TO_BIN(chip_minutes);
-                real_seconds = nowtime % 60;
-                real_minutes = nowtime / 60;
-                if (((abs(real_minutes - chip_minutes) + 15)/30) & 1)
-                        real_minutes += 30;
-                real_minutes %= 60;
-
-                if (abs(real_minutes - chip_minutes) < 30) {
-                        if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
-                                BIN_TO_BCD(real_seconds);
-                                BIN_TO_BCD(real_minutes);
-                        }
-                        CMOS_WRITE(real_seconds,RTC_SECONDS);
-                        CMOS_WRITE(real_minutes,RTC_MINUTES);
-                } else {
-                        printk(KERN_WARNING
-                               "set_rtc_mmss: can't update from %d to %d\n",
-                               chip_minutes, real_minutes);
-                        retval = -1;
-                }
-
-                CMOS_WRITE(save_control, RTC_CONTROL);
-                CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
-                spin_unlock_irqrestore(&rtc_lock, flags);
-
-                return retval;
-        }
-}
-
-#define RTC_IS_OPEN             0x01    /* means /dev/rtc is in use     */
-static unsigned char mini_rtc_status;   /* bitmapped status byte.       */
-
-#define FEBRUARY        2
-#define STARTOFTIME     1970
-#define SECDAY          86400L
-#define SECYR           (SECDAY * 365)
-#define leapyear(year)          ((year) % 4 == 0 && \
-                                 ((year) % 100 != 0 || (year) % 400 == 0))
-#define days_in_year(a)         (leapyear(a) ? 366 : 365)
-#define days_in_month(a)        (month_days[(a) - 1])
-
-static int month_days[12] = {
-        31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
-};
-
-/*
- * This only works for the Gregorian calendar - i.e. after 1752 (in the UK)
- */
-static void GregorianDay(struct rtc_time * tm)
-{
-        int leapsToDate;
-        int lastYear;
-        int day;
-        int MonthOffset[] = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 };
-
-        lastYear = tm->tm_year - 1;
-
-        /*
-         * Number of leap corrections to apply up to end of last year
-         */
-        leapsToDate = lastYear / 4 - lastYear / 100 + lastYear / 400;
-
-        /*
-         * This year is a leap year if it is divisible by 4 except when it is
-         * divisible by 100 unless it is divisible by 400
-         *
-         * e.g. 1904 was a leap year, 1900 was not, 1996 is, and 2000 was
-         */
-        day = tm->tm_mon > 2 && leapyear(tm->tm_year);
-
-        day += lastYear*365 + leapsToDate + MonthOffset[tm->tm_mon-1] +
-                   tm->tm_mday;
-
-        tm->tm_wday = day % 7;
-}
-
-static void to_tm(int tim, struct rtc_time *tm)
-{
-        register int    i;
-        register long   hms, day;
-
-        day = tim / SECDAY;
-        hms = tim % SECDAY;
-
-        /* Hours, minutes, seconds are easy */
-        tm->tm_hour = hms / 3600;
-        tm->tm_min = (hms % 3600) / 60;
-        tm->tm_sec = (hms % 3600) % 60;
-
-        /* Number of years in days */
-        for (i = STARTOFTIME; day >= days_in_year(i); i++)
-                day -= days_in_year(i);
-        tm->tm_year = i;
-
-        /* Number of months in days left */
-        if (leapyear(tm->tm_year))
-                days_in_month(FEBRUARY) = 29;
-        for (i = 1; day >= days_in_month(i); i++)
-                day -= days_in_month(i);
-        days_in_month(FEBRUARY) = 28;
-        tm->tm_mon = i;
-
-        /* Days are what is left over (+1) from all that. */
-        tm->tm_mday = day + 1;
-
-        /*
-         * Determine the day of week
-         */
-        GregorianDay(tm);
-}
-
-/* Both Starfire and SUN4V give us seconds since Jan 1st, 1970,
- * aka Unix time.  So we have to convert to/from rtc_time.
- */
-static void starfire_get_rtc_time(struct rtc_time *time)
-{
-        u32 seconds = starfire_get_time();
-
-        to_tm(seconds, time);
-        time->tm_year -= 1900;
-        time->tm_mon -= 1;
-}
-
-static int starfire_set_rtc_time(struct rtc_time *time)
-{
-        u32 seconds = mktime(time->tm_year + 1900, time->tm_mon + 1,
-                             time->tm_mday, time->tm_hour,
-                             time->tm_min, time->tm_sec);
-
-        return starfire_set_time(seconds);
-}
-
-static void hypervisor_get_rtc_time(struct rtc_time *time)
-{
-        u32 seconds = hypervisor_get_time();
-
-        to_tm(seconds, time);
-        time->tm_year -= 1900;
-        time->tm_mon -= 1;
-}
-
-static int hypervisor_set_rtc_time(struct rtc_time *time)
-{
-        u32 seconds = mktime(time->tm_year + 1900, time->tm_mon + 1,
-                             time->tm_mday, time->tm_hour,
-                             time->tm_min, time->tm_sec);
-
-        return hypervisor_set_time(seconds);
-}
-
-#ifdef CONFIG_PCI
-static void bq4802_get_rtc_time(struct rtc_time *time)
-{
-        unsigned char val = readb(bq4802_regs + 0x0e);
-        unsigned int century;
-
-        writeb(val | 0x08, bq4802_regs + 0x0e);
-
-        time->tm_sec = readb(bq4802_regs + 0x00);
-        time->tm_min = readb(bq4802_regs + 0x02);
-        time->tm_hour = readb(bq4802_regs + 0x04);
-        time->tm_mday = readb(bq4802_regs + 0x06);
-        time->tm_mon = readb(bq4802_regs + 0x09);
-        time->tm_year = readb(bq4802_regs + 0x0a);
-        time->tm_wday = readb(bq4802_regs + 0x08);
-        century = readb(bq4802_regs + 0x0f);
-
-        writeb(val, bq4802_regs + 0x0e);
-
-        BCD_TO_BIN(time->tm_sec);
-        BCD_TO_BIN(time->tm_min);
-        BCD_TO_BIN(time->tm_hour);
-        BCD_TO_BIN(time->tm_mday);
-        BCD_TO_BIN(time->tm_mon);
-        BCD_TO_BIN(time->tm_year);
-        BCD_TO_BIN(time->tm_wday);
-        BCD_TO_BIN(century);
-
-        time->tm_year += (century * 100);
-        time->tm_year -= 1900;
-
-        time->tm_mon--;
-}
-
-static int bq4802_set_rtc_time(struct rtc_time *time)
-{
-        unsigned char val = readb(bq4802_regs + 0x0e);
-        unsigned char sec, min, hrs, day, mon, yrs, century;
-        unsigned int year;
-
-        year = time->tm_year + 1900;
-        century = year / 100;
-        yrs = year % 100;
-
-        mon = time->tm_mon + 1;   /* tm_mon starts at zero */
-        day = time->tm_mday;
-        hrs = time->tm_hour;
-        min = time->tm_min;
-        sec = time->tm_sec;
-
-        BIN_TO_BCD(sec);
-        BIN_TO_BCD(min);
-        BIN_TO_BCD(hrs);
-        BIN_TO_BCD(day);
-        BIN_TO_BCD(mon);
-        BIN_TO_BCD(yrs);
-        BIN_TO_BCD(century);
-
-        writeb(val | 0x08, bq4802_regs + 0x0e);
-
-        writeb(sec, bq4802_regs + 0x00);
-        writeb(min, bq4802_regs + 0x02);
-        writeb(hrs, bq4802_regs + 0x04);
-        writeb(day, bq4802_regs + 0x06);
-        writeb(mon, bq4802_regs + 0x09);
-        writeb(yrs, bq4802_regs + 0x0a);
-        writeb(century, bq4802_regs + 0x0f);
-
-        writeb(val, bq4802_regs + 0x0e);
-
-        return 0;
-}
-
-static void cmos_get_rtc_time(struct rtc_time *rtc_tm)
-{
-        unsigned char ctrl;
-
-        rtc_tm->tm_sec = CMOS_READ(RTC_SECONDS);
-        rtc_tm->tm_min = CMOS_READ(RTC_MINUTES);
-        rtc_tm->tm_hour = CMOS_READ(RTC_HOURS);
-        rtc_tm->tm_mday = CMOS_READ(RTC_DAY_OF_MONTH);
-        rtc_tm->tm_mon = CMOS_READ(RTC_MONTH);
-        rtc_tm->tm_year = CMOS_READ(RTC_YEAR);
-        rtc_tm->tm_wday = CMOS_READ(RTC_DAY_OF_WEEK);
-
-        ctrl = CMOS_READ(RTC_CONTROL);
-        if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
-                BCD_TO_BIN(rtc_tm->tm_sec);
-                BCD_TO_BIN(rtc_tm->tm_min);
-                BCD_TO_BIN(rtc_tm->tm_hour);
-                BCD_TO_BIN(rtc_tm->tm_mday);
-                BCD_TO_BIN(rtc_tm->tm_mon);
-                BCD_TO_BIN(rtc_tm->tm_year);
-                BCD_TO_BIN(rtc_tm->tm_wday);
-        }
-
-        if (rtc_tm->tm_year <= 69)
-                rtc_tm->tm_year += 100;
-
-        rtc_tm->tm_mon--;
-}
-
-static int cmos_set_rtc_time(struct rtc_time *rtc_tm)
-{
-        unsigned char mon, day, hrs, min, sec;
-        unsigned char save_control, save_freq_select;
-        unsigned int yrs;
-
-        yrs = rtc_tm->tm_year;
-        mon = rtc_tm->tm_mon + 1;
-        day = rtc_tm->tm_mday;
-        hrs = rtc_tm->tm_hour;
-        min = rtc_tm->tm_min;
-        sec = rtc_tm->tm_sec;
-
-        if (yrs >= 100)
-                yrs -= 100;
-
-        if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
-                BIN_TO_BCD(sec);
-                BIN_TO_BCD(min);
-                BIN_TO_BCD(hrs);
-                BIN_TO_BCD(day);
-                BIN_TO_BCD(mon);
-                BIN_TO_BCD(yrs);
-        }
-
-        save_control = CMOS_READ(RTC_CONTROL);
-        CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
-        save_freq_select = CMOS_READ(RTC_FREQ_SELECT);
-        CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
-
-        CMOS_WRITE(yrs, RTC_YEAR);
-        CMOS_WRITE(mon, RTC_MONTH);
-        CMOS_WRITE(day, RTC_DAY_OF_MONTH);
-        CMOS_WRITE(hrs, RTC_HOURS);
-        CMOS_WRITE(min, RTC_MINUTES);
-        CMOS_WRITE(sec, RTC_SECONDS);
-
-        CMOS_WRITE(save_control, RTC_CONTROL);
-        CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
-
-        return 0;
-}
-#endif /* CONFIG_PCI */
-
-static void mostek_get_rtc_time(struct rtc_time *rtc_tm)
-{
-        void __iomem *regs = mstk48t02_regs;
-        u8 tmp;
-
-        spin_lock_irq(&mostek_lock);
-
-        tmp = mostek_read(regs + MOSTEK_CREG);
-        tmp |= MSTK_CREG_READ;
-        mostek_write(regs + MOSTEK_CREG, tmp);
-
-        rtc_tm->tm_sec = MSTK_REG_SEC(regs);
-        rtc_tm->tm_min = MSTK_REG_MIN(regs);
-        rtc_tm->tm_hour = MSTK_REG_HOUR(regs);
-        rtc_tm->tm_mday = MSTK_REG_DOM(regs);
-        rtc_tm->tm_mon = MSTK_REG_MONTH(regs);
-        rtc_tm->tm_year = MSTK_CVT_YEAR( MSTK_REG_YEAR(regs) );
-        rtc_tm->tm_wday = MSTK_REG_DOW(regs);
-
-        tmp = mostek_read(regs + MOSTEK_CREG);
-        tmp &= ~MSTK_CREG_READ;
-        mostek_write(regs + MOSTEK_CREG, tmp);
-
-        spin_unlock_irq(&mostek_lock);
-
-        rtc_tm->tm_mon--;
-        rtc_tm->tm_wday--;
-        rtc_tm->tm_year -= 1900;
-}
-
-static int mostek_set_rtc_time(struct rtc_time *rtc_tm)
-{
-        unsigned char mon, day, hrs, min, sec, wday;
-        void __iomem *regs = mstk48t02_regs;
-        unsigned int yrs;
-        u8 tmp;
-
-        yrs = rtc_tm->tm_year + 1900;
-        mon = rtc_tm->tm_mon + 1;
-        day = rtc_tm->tm_mday;
-        wday = rtc_tm->tm_wday + 1;
-        hrs = rtc_tm->tm_hour;
-        min = rtc_tm->tm_min;
-        sec = rtc_tm->tm_sec;
-
-        spin_lock_irq(&mostek_lock);
-
-        tmp = mostek_read(regs + MOSTEK_CREG);
-        tmp |= MSTK_CREG_WRITE;
-        mostek_write(regs + MOSTEK_CREG, tmp);
-
-        MSTK_SET_REG_SEC(regs, sec);
-        MSTK_SET_REG_MIN(regs, min);
-        MSTK_SET_REG_HOUR(regs, hrs);
-        MSTK_SET_REG_DOW(regs, wday);
-        MSTK_SET_REG_DOM(regs, day);
-        MSTK_SET_REG_MONTH(regs, mon);
-        MSTK_SET_REG_YEAR(regs, yrs - MSTK_YEAR_ZERO);
-
-        tmp = mostek_read(regs + MOSTEK_CREG);
-        tmp &= ~MSTK_CREG_WRITE;
-        mostek_write(regs + MOSTEK_CREG, tmp);
-
-        spin_unlock_irq(&mostek_lock);
-
-        return 0;
-}
-
-struct mini_rtc_ops {
-        void (*get_rtc_time)(struct rtc_time *);
-        int (*set_rtc_time)(struct rtc_time *);
-};
-
-static struct mini_rtc_ops starfire_rtc_ops = {
-        .get_rtc_time = starfire_get_rtc_time,
-        .set_rtc_time = starfire_set_rtc_time,
-};
-
-static struct mini_rtc_ops hypervisor_rtc_ops = {
-        .get_rtc_time = hypervisor_get_rtc_time,
-        .set_rtc_time = hypervisor_set_rtc_time,
-};
-
-#ifdef CONFIG_PCI
-static struct mini_rtc_ops bq4802_rtc_ops = {
-        .get_rtc_time = bq4802_get_rtc_time,
-        .set_rtc_time = bq4802_set_rtc_time,
-};
-
-static struct mini_rtc_ops cmos_rtc_ops = {
-        .get_rtc_time = cmos_get_rtc_time,
-        .set_rtc_time = cmos_set_rtc_time,
-};
-#endif /* CONFIG_PCI */
-
-static struct mini_rtc_ops mostek_rtc_ops = {
-        .get_rtc_time = mostek_get_rtc_time,
-        .set_rtc_time = mostek_set_rtc_time,
-};
-
-static struct mini_rtc_ops *mini_rtc_ops;
-
-static inline void mini_get_rtc_time(struct rtc_time *time)
-{
-        unsigned long flags;
-
-        spin_lock_irqsave(&rtc_lock, flags);
-        mini_rtc_ops->get_rtc_time(time);
-        spin_unlock_irqrestore(&rtc_lock, flags);
-}
-
-static inline int mini_set_rtc_time(struct rtc_time *time)
-{
-        unsigned long flags;
-        int err;
-
-        spin_lock_irqsave(&rtc_lock, flags);
-        err = mini_rtc_ops->set_rtc_time(time);
-        spin_unlock_irqrestore(&rtc_lock, flags);
-
-        return err;
-}
-
-static int mini_rtc_ioctl(struct inode *inode, struct file *file,
-                          unsigned int cmd, unsigned long arg)
-{
-        struct rtc_time wtime;
-        void __user *argp = (void __user *)arg;
-
-        switch (cmd) {
-
-        case RTC_PLL_GET:
-                return -EINVAL;
-
-        case RTC_PLL_SET:
-                return -EINVAL;
-
-        case RTC_UIE_OFF:       /* disable ints from RTC updates.       */
-                return 0;
-
-        case RTC_UIE_ON:        /* enable ints for RTC updates. */
-                return -EINVAL;
-
-        case RTC_RD_TIME:       /* Read the time/date from RTC  */
-                /* this doesn't get week-day, who cares */
-                memset(&wtime, 0, sizeof(wtime));
-                mini_get_rtc_time(&wtime);
-
-                return copy_to_user(argp, &wtime, sizeof(wtime)) ? -EFAULT : 0;
-
-        case RTC_SET_TIME:      /* Set the RTC */
-            {
-                int year, days;
-
-                if (!capable(CAP_SYS_TIME))
-                        return -EACCES;
-
-                if (copy_from_user(&wtime, argp, sizeof(wtime)))
-                        return -EFAULT;
-
-                year = wtime.tm_year + 1900;
-                days = month_days[wtime.tm_mon] +
-                       ((wtime.tm_mon == 1) && leapyear(year));
-
-                if ((wtime.tm_mon < 0 || wtime.tm_mon > 11) ||
-                    (wtime.tm_mday < 1))
-                        return -EINVAL;
-
-                if (wtime.tm_mday < 0 || wtime.tm_mday > days)
-                        return -EINVAL;
-
-                if (wtime.tm_hour < 0 || wtime.tm_hour >= 24 ||
-                    wtime.tm_min < 0 || wtime.tm_min >= 60 ||
-                    wtime.tm_sec < 0 || wtime.tm_sec >= 60)
-                        return -EINVAL;
-
-                return mini_set_rtc_time(&wtime);
-            }
-        }
-
-        return -EINVAL;
-}
-
-static int mini_rtc_open(struct inode *inode, struct file *file)
-{
-        lock_kernel();
-        if (mini_rtc_status & RTC_IS_OPEN) {
-                unlock_kernel();
-                return -EBUSY;
-        }
-
-        mini_rtc_status |= RTC_IS_OPEN;
-        unlock_kernel();
-
-        return 0;
-}
-
-static int mini_rtc_release(struct inode *inode, struct file *file)
-{
-        mini_rtc_status &= ~RTC_IS_OPEN;
-        return 0;
-}
-
-
-static const struct file_operations mini_rtc_fops = {
-        .owner          = THIS_MODULE,
-        .ioctl          = mini_rtc_ioctl,
-        .open           = mini_rtc_open,
-        .release        = mini_rtc_release,
-};
-
-static struct miscdevice rtc_mini_dev =
-{
-        .minor          = RTC_MINOR,
-        .name           = "rtc",
-        .fops           = &mini_rtc_fops,
-};
-
-static int __init rtc_mini_init(void)
-{
-        int retval;
-
-        if (tlb_type == hypervisor)
-                mini_rtc_ops = &hypervisor_rtc_ops;
-        else if (this_is_starfire)
-                mini_rtc_ops = &starfire_rtc_ops;
-#ifdef CONFIG_PCI
-        else if (bq4802_regs)
-                mini_rtc_ops = &bq4802_rtc_ops;
-        else if (ds1287_regs)
-                mini_rtc_ops = &cmos_rtc_ops;
-#endif /* CONFIG_PCI */
-        else if (mstk48t02_regs)
-                mini_rtc_ops = &mostek_rtc_ops;
-        else
-                return -ENODEV;
-
-        printk(KERN_INFO "Mini RTC Driver\n");
-
-        retval = misc_register(&rtc_mini_dev);
-        if (retval < 0)
-                return retval;
-
-        return 0;
-}
-
-static void __exit rtc_mini_exit(void)
-{
-        misc_deregister(&rtc_mini_dev);
-}
-
 int __devinit read_current_timer(unsigned long *timer_val)
 {
         *timer_val = tick_ops->get_tick();
         return 0;
 }
-
-module_init(rtc_mini_init);
-module_exit(rtc_mini_exit);
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index c824df13f58..81ccd22e78d 100644
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -38,6 +38,7 @@
 #include <asm/timer.h>
 #include <asm/head.h>
 #include <asm/prom.h>
+#include <asm/memctrl.h>
 
 #include "entry.h"
 #include "kstack.h"
@@ -129,6 +130,56 @@ void do_BUG(const char *file, int line)
 }
 #endif
 
+static DEFINE_SPINLOCK(dimm_handler_lock);
+static dimm_printer_t dimm_handler;
+
+static int sprintf_dimm(int synd_code, unsigned long paddr, char *buf, int buflen)
+{
+        unsigned long flags;
+        int ret = -ENODEV;
+
+        spin_lock_irqsave(&dimm_handler_lock, flags);
+        if (dimm_handler) {
+                ret = dimm_handler(synd_code, paddr, buf, buflen);
+        } else if (tlb_type == spitfire) {
+                if (prom_getunumber(synd_code, paddr, buf, buflen) == -1)
+                        ret = -EINVAL;
+                else
+                        ret = 0;
+        } else
+                ret = -ENODEV;
+        spin_unlock_irqrestore(&dimm_handler_lock, flags);
+
+        return ret;
+}
+
+int register_dimm_printer(dimm_printer_t func)
+{
+        unsigned long flags;
+        int ret = 0;
+
+        spin_lock_irqsave(&dimm_handler_lock, flags);
+        if (!dimm_handler)
+                dimm_handler = func;
+        else
+                ret = -EEXIST;
+        spin_unlock_irqrestore(&dimm_handler_lock, flags);
+
+        return ret;
+}
+EXPORT_SYMBOL_GPL(register_dimm_printer);
+
+void unregister_dimm_printer(dimm_printer_t func)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&dimm_handler_lock, flags);
+        if (dimm_handler == func)
+                dimm_handler = NULL;
+        spin_unlock_irqrestore(&dimm_handler_lock, flags);
+}
+EXPORT_SYMBOL_GPL(unregister_dimm_printer);
+
 void spitfire_insn_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar)
 {
         siginfo_t info;
@@ -291,10 +342,7 @@ void sun4v_data_access_exception_tl1(struct pt_regs *regs, unsigned long addr, u
 }
 
 #ifdef CONFIG_PCI
-/* This is really pathetic... */
-extern volatile int pci_poke_in_progress;
-extern volatile int pci_poke_cpu;
-extern volatile int pci_poke_faulted;
+#include "pci_impl.h"
 #endif
 
 /* When access exceptions happen, we must do this. */
@@ -376,8 +424,7 @@ static void spitfire_log_udb_syndrome(unsigned long afar, unsigned long udbh, un
 
         if (udbl & bit) {
                 scode = ecc_syndrome_table[udbl & 0xff];
-                if (prom_getunumber(scode, afar,
-                                    memmod_str, sizeof(memmod_str)) == -1)
+                if (sprintf_dimm(scode, afar, memmod_str, sizeof(memmod_str)) < 0)
                         p = syndrome_unknown;
                 else
                         p = memmod_str;
@@ -388,8 +435,7 @@ static void spitfire_log_udb_syndrome(unsigned long afar, unsigned long udbh, un
 
         if (udbh & bit) {
                 scode = ecc_syndrome_table[udbh & 0xff];
-                if (prom_getunumber(scode, afar,
-                                    memmod_str, sizeof(memmod_str)) == -1)
+                if (sprintf_dimm(scode, afar, memmod_str, sizeof(memmod_str)) < 0)
                         p = syndrome_unknown;
                 else
                         p = memmod_str;
@@ -1062,8 +1108,6 @@ static const char *cheetah_get_string(unsigned long bit)
         return "???";
 }
 
-extern int chmc_getunumber(int, unsigned long, char *, int);
-
 static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *info,
                                unsigned long afsr, unsigned long afar, int recoverable)
 {
@@ -1105,7 +1149,7 @@ static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *in
 
                 syndrome = (afsr & CHAFSR_E_SYNDROME) >> CHAFSR_E_SYNDROME_SHIFT;
                 syndrome = cheetah_ecc_syntab[syndrome];
-                ret = chmc_getunumber(syndrome, afar, unum, sizeof(unum));
+                ret = sprintf_dimm(syndrome, afar, unum, sizeof(unum));
                 if (ret != -1)
                         printk("%s" "ERROR(%d): AFAR E-syndrome [%s]\n",
                                (recoverable ? KERN_WARNING : KERN_CRIT),
@@ -1116,7 +1160,7 @@ static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *in
 
                 syndrome = (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT;
                 syndrome = cheetah_mtag_syntab[syndrome];
-                ret = chmc_getunumber(syndrome, afar, unum, sizeof(unum));
+                ret = sprintf_dimm(syndrome, afar, unum, sizeof(unum));
                 if (ret != -1)
                         printk("%s" "ERROR(%d): AFAR M-syndrome [%s]\n",
                                (recoverable ? KERN_WARNING : KERN_CRIT),
@@ -2224,7 +2268,6 @@ void die_if_kernel(char *str, struct pt_regs *regs)
 
 extern int handle_popc(u32 insn, struct pt_regs *regs);
 extern int handle_ldf_stq(u32 insn, struct pt_regs *regs);
-extern int vis_emul(struct pt_regs *, unsigned int);
 
 void do_illegal_instruction(struct pt_regs *regs)
 {
diff --git a/arch/sparc64/kernel/vio.c b/arch/sparc64/kernel/vio.c
index a490077891a..92b1f8ec01d 100644
--- a/arch/sparc64/kernel/vio.c
+++ b/arch/sparc64/kernel/vio.c
@@ -152,7 +152,7 @@ show_pciobppath_attr(struct device *dev, struct device_attribute *attr,
 static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH,
                    show_pciobppath_attr, NULL);
 
-struct device_node *cdev_node;
+static struct device_node *cdev_node;
 
 static struct vio_dev *root_vdev;
 static u64 cdev_cfg_handle;
@@ -371,9 +371,9 @@ static struct mdesc_notifier_client vio_ds_notifier = {
         .node_name      = "domain-services-port",
 };
 
-const char *channel_devices_node = "channel-devices";
-const char *channel_devices_compat = "SUNW,sun4v-channel-devices";
-const char *cfg_handle_prop = "cfg-handle";
+static const char *channel_devices_node = "channel-devices";
+static const char *channel_devices_compat = "SUNW,sun4v-channel-devices";
+static const char *cfg_handle_prop = "cfg-handle";
 
 static int __init vio_init(void)
 {
diff --git a/arch/sparc64/kernel/visemul.c b/arch/sparc64/kernel/visemul.c
index c3fd64706b5..9e05cb5cb85 100644
--- a/arch/sparc64/kernel/visemul.c
+++ b/arch/sparc64/kernel/visemul.c
@@ -243,7 +243,7 @@ static inline unsigned int *fps_regaddr(struct fpustate *f,
 struct edge_tab {
         u16 left, right;
 };
-struct edge_tab edge8_tab[8] = {
+static struct edge_tab edge8_tab[8] = {
         { 0xff, 0x80 },
         { 0x7f, 0xc0 },
         { 0x3f, 0xe0 },
@@ -253,7 +253,7 @@ struct edge_tab edge8_tab[8] = {
         { 0x03, 0xfe },
         { 0x01, 0xff },
 };
-struct edge_tab edge8_tab_l[8] = {
+static struct edge_tab edge8_tab_l[8] = {
         { 0xff, 0x01 },
         { 0xfe, 0x03 },
         { 0xfc, 0x07 },
@@ -263,23 +263,23 @@ struct edge_tab edge8_tab_l[8] = {
         { 0xc0, 0x7f },
         { 0x80, 0xff },
 };
-struct edge_tab edge16_tab[4] = {
+static struct edge_tab edge16_tab[4] = {
         { 0xf, 0x8 },
         { 0x7, 0xc },
         { 0x3, 0xe },
         { 0x1, 0xf },
 };
-struct edge_tab edge16_tab_l[4] = {
+static struct edge_tab edge16_tab_l[4] = {
         { 0xf, 0x1 },
         { 0xe, 0x3 },
         { 0xc, 0x7 },
         { 0x8, 0xf },
 };
-struct edge_tab edge32_tab[2] = {
+static struct edge_tab edge32_tab[2] = {
         { 0x3, 0x2 },
         { 0x1, 0x3 },
 };
-struct edge_tab edge32_tab_l[2] = {
+static struct edge_tab edge32_tab_l[2] = {
         { 0x3, 0x1 },
         { 0x2, 0x3 },
 };
diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c
index ea7d7ae76bc..a9e474bf638 100644
--- a/arch/sparc64/mm/fault.c
+++ b/arch/sparc64/mm/fault.c
@@ -51,43 +51,6 @@ static inline int notify_page_fault(struct pt_regs *regs)
 }
 #endif
 
-/*
- * To debug kernel to catch accesses to certain virtual/physical addresses.
- * Mode = 0 selects physical watchpoints, mode = 1 selects virtual watchpoints.
- * flags = VM_READ watches memread accesses, flags = VM_WRITE watches memwrite accesses.
- * Caller passes in a 64bit aligned addr, with mask set to the bytes that need to be
- * watched. This is only useful on a single cpu machine for now. After the watchpoint
- * is detected, the process causing it will be killed, thus preventing an infinite loop.
- */
-void set_brkpt(unsigned long addr, unsigned char mask, int flags, int mode)
-{
-        unsigned long lsubits;
-
-        __asm__ __volatile__("ldxa [%%g0] %1, %0"
-                             : "=r" (lsubits)
-                             : "i" (ASI_LSU_CONTROL));
-        lsubits &= ~(LSU_CONTROL_PM | LSU_CONTROL_VM |
-                     LSU_CONTROL_PR | LSU_CONTROL_VR |
-                     LSU_CONTROL_PW | LSU_CONTROL_VW);
-
-        __asm__ __volatile__("stxa      %0, [%1] %2\n\t"
-                             "membar    #Sync"
-                             : /* no outputs */
-                             : "r" (addr), "r" (mode ? VIRT_WATCHPOINT : PHYS_WATCHPOINT),
-                               "i" (ASI_DMMU));
-
-        lsubits |= ((unsigned long)mask << (mode ? 25 : 33));
-        if (flags & VM_READ)
-                lsubits |= (mode ? LSU_CONTROL_VR : LSU_CONTROL_PR);
-        if (flags & VM_WRITE)
-                lsubits |= (mode ? LSU_CONTROL_VW : LSU_CONTROL_PW);
-        __asm__ __volatile__("stxa %0, [%%g0] %1\n\t"
-                             "membar #Sync"
-                             : /* no outputs */
-                             : "r" (lsubits), "i" (ASI_LSU_CONTROL)
-                             : "memory");
-}
-
 static void __kprobes unhandled_fault(unsigned long address,
                                       struct task_struct *tsk,
                                       struct pt_regs *regs)
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index a41df7bef03..3c10daf8fc0 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -46,15 +46,11 @@
 #include <asm/tsb.h>
 #include <asm/hypervisor.h>
 #include <asm/prom.h>
-#include <asm/sstate.h>
 #include <asm/mdesc.h>
 #include <asm/cpudata.h>
 #include <asm/irq.h>
 
-#define MAX_PHYS_ADDRESS        (1UL << 42UL)
-#define KPTE_BITMAP_CHUNK_SZ    (256UL * 1024UL * 1024UL)
-#define KPTE_BITMAP_BYTES       \
-        ((MAX_PHYS_ADDRESS / KPTE_BITMAP_CHUNK_SZ) / 8)
+#include "init.h"
 
 unsigned long kern_linear_pte_xor[2] __read_mostly;
 
@@ -416,17 +412,9 @@ void mmu_info(struct seq_file *m)
 #endif /* CONFIG_DEBUG_DCFLUSH */
 }
 
-struct linux_prom_translation {
-        unsigned long virt;
-        unsigned long size;
-        unsigned long data;
-};
-
-/* Exported for kernel TLB miss handling in ktlb.S */
 struct linux_prom_translation prom_trans[512] __read_mostly;
 unsigned int prom_trans_ents __read_mostly;
 
-/* Exported for SMP bootup purposes. */
 unsigned long kern_locked_tte_data;
 
 /* The obp translations are saved based on 8k pagesize, since obp can
@@ -938,6 +926,10 @@ int of_node_to_nid(struct device_node *dp)
         int count, nid;
         u64 grp;
 
+        /* This is the right thing to do on currently supported
+         * SUN4U NUMA platforms as well, as the PCI controller does
+         * not sit behind any particular memory controller.
+         */
         if (!mlgroups)
                 return -1;
 
@@ -1206,8 +1198,44 @@ out:
         return err;
 }
 
+static int __init numa_parse_jbus(void)
+{
+        unsigned long cpu, index;
+
+        /* NUMA node id is encoded in bits 36 and higher, and there is
+         * a 1-to-1 mapping from CPU ID to NUMA node ID.
+         */
+        index = 0;
+        for_each_present_cpu(cpu) {
+                numa_cpu_lookup_table[cpu] = index;
+                numa_cpumask_lookup_table[index] = cpumask_of_cpu(cpu);
+                node_masks[index].mask = ~((1UL << 36UL) - 1UL);
+                node_masks[index].val = cpu << 36UL;
+
+                index++;
+        }
+        num_node_masks = index;
+
+        add_node_ranges();
+
+        for (index = 0; index < num_node_masks; index++) {
+                allocate_node_data(index);
+                node_set_online(index);
+        }
+
+        return 0;
+}
+
 static int __init numa_parse_sun4u(void)
 {
+        if (tlb_type == cheetah || tlb_type == cheetah_plus) {
+                unsigned long ver;
+
+                __asm__ ("rdpr %%ver, %0" : "=r" (ver));
+                if ((ver >> 32UL) == __JALAPENO_ID ||
+                    (ver >> 32UL) == __SERRANO_ID)
+                        return numa_parse_jbus();
+        }
         return -1;
 }
 
@@ -1633,8 +1661,6 @@ void __cpuinit sun4v_ktsb_register(void)
 
 /* paging_init() sets up the page tables */
 
-extern void central_probe(void);
-
 static unsigned long last_valid_pfn;
 pgd_t swapper_pg_dir[2048];
 
@@ -1679,8 +1705,6 @@ void __init paging_init(void)
         kern_base = (prom_boot_mapping_phys_low >> 22UL) << 22UL;
         kern_size = (unsigned long)&_end - (unsigned long)KERNBASE;
 
-        sstate_booting();
-
         /* Invalidate both kernel TSBs.  */
         memset(swapper_tsb, 0x40, sizeof(swapper_tsb));
 #ifndef CONFIG_DEBUG_PAGEALLOC
@@ -1803,9 +1827,6 @@ void __init paging_init(void)
         }
 
         printk("Booting Linux...\n");
-
-        central_probe();
-        cpu_probe();
 }
 
 int __init page_in_phys_avail(unsigned long paddr)
@@ -2032,7 +2053,6 @@ pgprot_t PAGE_COPY __read_mostly;
 pgprot_t PAGE_SHARED __read_mostly;
 EXPORT_SYMBOL(PAGE_SHARED);
 
-pgprot_t PAGE_EXEC __read_mostly;
 unsigned long pg_iobits __read_mostly;
 
 unsigned long _PAGE_IE __read_mostly;
@@ -2045,14 +2065,6 @@ unsigned long _PAGE_CACHE __read_mostly;
 EXPORT_SYMBOL(_PAGE_CACHE);
 
 #ifdef CONFIG_SPARSEMEM_VMEMMAP
-
-#define VMEMMAP_CHUNK_SHIFT     22
-#define VMEMMAP_CHUNK           (1UL << VMEMMAP_CHUNK_SHIFT)
-#define VMEMMAP_CHUNK_MASK      ~(VMEMMAP_CHUNK - 1UL)
-#define VMEMMAP_ALIGN(x)        (((x)+VMEMMAP_CHUNK-1UL)&VMEMMAP_CHUNK_MASK)
-
-#define VMEMMAP_SIZE    ((((1UL << MAX_PHYSADDR_BITS) >> PAGE_SHIFT) * \
-                          sizeof(struct page *)) >> VMEMMAP_CHUNK_SHIFT)
 unsigned long vmemmap_table[VMEMMAP_SIZE];
 
 int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node)
@@ -2136,7 +2148,6 @@ static void __init sun4u_pgprot_init(void)
                                        _PAGE_CACHE_4U | _PAGE_P_4U |
                                        __ACCESS_BITS_4U | __DIRTY_BITS_4U |
                                        _PAGE_EXEC_4U | _PAGE_L_4U);
-        PAGE_EXEC = __pgprot(_PAGE_EXEC_4U);
 
         _PAGE_IE = _PAGE_IE_4U;
         _PAGE_E = _PAGE_E_4U;
@@ -2147,10 +2158,10 @@ static void __init sun4u_pgprot_init(void)
 
 #ifdef CONFIG_DEBUG_PAGEALLOC
         kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZBITS_4U) ^
-                0xfffff80000000000;
+                0xfffff80000000000UL;
 #else
         kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZ4MB_4U) ^
-                0xfffff80000000000;
+                0xfffff80000000000UL;
 #endif
         kern_linear_pte_xor[0] |= (_PAGE_CP_4U | _PAGE_CV_4U |
                                    _PAGE_P_4U | _PAGE_W_4U);
@@ -2188,7 +2199,6 @@ static void __init sun4v_pgprot_init(void)
                                 __ACCESS_BITS_4V | __DIRTY_BITS_4V |
                                 _PAGE_EXEC_4V);
         PAGE_KERNEL_LOCKED = PAGE_KERNEL;
-        PAGE_EXEC = __pgprot(_PAGE_EXEC_4V);
 
         _PAGE_IE = _PAGE_IE_4V;
         _PAGE_E = _PAGE_E_4V;
@@ -2196,20 +2206,20 @@ static void __init sun4v_pgprot_init(void)
 
 #ifdef CONFIG_DEBUG_PAGEALLOC
         kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZBITS_4V) ^
-                0xfffff80000000000;
+                0xfffff80000000000UL;
 #else
         kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZ4MB_4V) ^
-                0xfffff80000000000;
+                0xfffff80000000000UL;
 #endif
         kern_linear_pte_xor[0] |= (_PAGE_CP_4V | _PAGE_CV_4V |
                                    _PAGE_P_4V | _PAGE_W_4V);
 
 #ifdef CONFIG_DEBUG_PAGEALLOC
         kern_linear_pte_xor[1] = (_PAGE_VALID | _PAGE_SZBITS_4V) ^
-                0xfffff80000000000;
+                0xfffff80000000000UL;
 #else
         kern_linear_pte_xor[1] = (_PAGE_VALID | _PAGE_SZ256MB_4V) ^
-                0xfffff80000000000;
+                0xfffff80000000000UL;
 #endif
         kern_linear_pte_xor[1] |= (_PAGE_CP_4V | _PAGE_CV_4V |
                                    _PAGE_P_4V | _PAGE_W_4V);
diff --git a/arch/sparc64/mm/init.h b/arch/sparc64/mm/init.h
new file mode 100644
index 00000000000..16063870a48
--- /dev/null
+++ b/arch/sparc64/mm/init.h
@@ -0,0 +1,49 @@
+#ifndef _SPARC64_MM_INIT_H
+#define _SPARC64_MM_INIT_H
+
+/* Most of the symbols in this file are defined in init.c and
+ * marked non-static so that assembler code can get at them.
+ */
+
+#define MAX_PHYS_ADDRESS        (1UL << 42UL)
+#define KPTE_BITMAP_CHUNK_SZ    (256UL * 1024UL * 1024UL)
+#define KPTE_BITMAP_BYTES       \
+        ((MAX_PHYS_ADDRESS / KPTE_BITMAP_CHUNK_SZ) / 8)
+
+extern unsigned long kern_linear_pte_xor[2];
+extern unsigned long kpte_linear_bitmap[KPTE_BITMAP_BYTES / sizeof(unsigned long)];
+extern unsigned int sparc64_highest_unlocked_tlb_ent;
+extern unsigned long sparc64_kern_pri_context;
+extern unsigned long sparc64_kern_pri_nuc_bits;
+extern unsigned long sparc64_kern_sec_context;
+extern void mmu_info(struct seq_file *m);
+
+struct linux_prom_translation {
+        unsigned long virt;
+        unsigned long size;
+        unsigned long data;
+};
+
+/* Exported for kernel TLB miss handling in ktlb.S */
+extern struct linux_prom_translation prom_trans[512];
+extern unsigned int prom_trans_ents;
+
+/* Exported for SMP bootup purposes. */
+extern unsigned long kern_locked_tte_data;
+
+extern void prom_world(int enter);
+
+extern void free_initmem(void);
+
+#ifdef CONFIG_SPARSEMEM_VMEMMAP
+#define VMEMMAP_CHUNK_SHIFT     22
+#define VMEMMAP_CHUNK           (1UL << VMEMMAP_CHUNK_SHIFT)
+#define VMEMMAP_CHUNK_MASK      ~(VMEMMAP_CHUNK - 1UL)
+#define VMEMMAP_ALIGN(x)        (((x)+VMEMMAP_CHUNK-1UL)&VMEMMAP_CHUNK_MASK)
+
+#define VMEMMAP_SIZE    ((((1UL << MAX_PHYSADDR_BITS) >> PAGE_SHIFT) * \
+                          sizeof(struct page *)) >> VMEMMAP_CHUNK_SHIFT)
+extern unsigned long vmemmap_table[VMEMMAP_SIZE];
+#endif
+
+#endif /* _SPARC64_MM_INIT_H */
diff --git a/arch/sparc64/mm/tlb.c b/arch/sparc64/mm/tlb.c
index ae24919cba7..d8f21e24a82 100644
--- a/arch/sparc64/mm/tlb.c
+++ b/arch/sparc64/mm/tlb.c
@@ -19,7 +19,7 @@
 
 /* Heavily inspired by the ppc64 code.  */
 
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers) = { 0, };
+DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 
 void flush_tlb_pending(void)
 {