1 files changed, 48 insertions, 148 deletions

diff --git a/arch/mips/jmr3927/rbhma3100/setup.c b/arch/mips/jmr3927/rbhma3100/setup.c
index 7ca3d6d07b34..d1ef2895d564 100644
--- a/arch/mips/jmr3927/rbhma3100/setup.c
+++ b/arch/mips/jmr3927/rbhma3100/setup.c
@@ -45,6 +45,7 @@
 #include <linux/param.h>        /* for HZ */
 #include <linux/delay.h>
 #include <linux/pm.h>
+#include <linux/platform_device.h>
 #ifdef CONFIG_SERIAL_TXX9
 #include <linux/tty.h>
 #include <linux/serial.h>
@@ -53,94 +54,21 @@
 
 #include <asm/addrspace.h>
 #include <asm/time.h>
-#include <asm/bcache.h>
-#include <asm/irq.h>
 #include <asm/reboot.h>
-#include <asm/gdb-stub.h>
 #include <asm/jmr3927/jmr3927.h>
 #include <asm/mipsregs.h>
-#include <asm/traps.h>
 
-extern void puts(unsigned char *cp);
+extern void puts(const char *cp);
 
 /* Tick Timer divider */
 #define JMR3927_TIMER_CCD       0       /* 1/2 */
 #define JMR3927_TIMER_CLK       (JMR3927_IMCLK / (2 << JMR3927_TIMER_CCD))
 
-unsigned char led_state = 0xf;
-
-struct {
-    struct resource ram0;
-    struct resource ram1;
-    struct resource pcimem;
-    struct resource iob;
-    struct resource ioc;
-    struct resource pciio;
-    struct resource jmy1394;
-    struct resource rom1;
-    struct resource rom0;
-    struct resource sio0;
-    struct resource sio1;
-} jmr3927_resources = {
-        {
-                .start  = 0,
-                .end    = 0x01FFFFFF,
-                .name   = "RAM0",
-                .flags = IORESOURCE_MEM
-        }, {
-                .start  = 0x02000000,
-                .end    = 0x03FFFFFF,
-                .name   = "RAM1",
-                .flags = IORESOURCE_MEM
-        }, {
-                .start  = 0x08000000,
-                .end    = 0x07FFFFFF,
-                .name   = "PCIMEM",
-                .flags = IORESOURCE_MEM
-        }, {
-                .start  = 0x10000000,
-                .end    = 0x13FFFFFF,
-                .name   = "IOB"
-        }, {
-                .start  = 0x14000000,
-                .end    = 0x14FFFFFF,
-                .name   = "IOC"
-        }, {
-                .start  = 0x15000000,
-                .end    = 0x15FFFFFF,
-                .name   = "PCIIO"
-        }, {
-                .start  = 0x1D000000,
-                .end    = 0x1D3FFFFF,
-                .name   = "JMY1394"
-        }, {
-                .start  = 0x1E000000,
-                .end    = 0x1E3FFFFF,
-                .name   = "ROM1"
-        }, {
-                .start  = 0x1FC00000,
-                .end    = 0x1FFFFFFF,
-                .name   = "ROM0"
-        }, {
-                .start  = 0xFFFEF300,
-                .end    = 0xFFFEF3FF,
-                .name   = "SIO0"
-        }, {
-                .start  = 0xFFFEF400,
-                .end    = 0xFFFEF4FF,
-                .name   = "SIO1"
-        },
-};
-
 /* don't enable - see errata */
-int jmr3927_ccfg_toeon = 0;
+static int jmr3927_ccfg_toeon;
 
 static inline void do_reset(void)
 {
-#ifdef CONFIG_TC35815
-        extern void tc35815_killall(void);
-        tc35815_killall();
-#endif
 #if 1   /* Resetting PCI bus */
         jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
         jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI, JMR3927_IOC_RESET_ADDR);
@@ -176,19 +104,16 @@ static cycle_t jmr3927_hpt_read(void)
         return jiffies * (JMR3927_TIMER_CLK / HZ) + jmr3927_tmrptr->trr;
 }
 
-#define USE_RTC_DS1742
-#ifdef USE_RTC_DS1742
-extern void rtc_ds1742_init(unsigned long base);
-#endif
+static void jmr3927_timer_ack(void)
+{
+        jmr3927_tmrptr->tisr = 0;       /* ack interrupt */
+}
+
 static void __init jmr3927_time_init(void)
 {
         clocksource_mips.read = jmr3927_hpt_read;
+        mips_timer_ack = jmr3927_timer_ack;
         mips_hpt_frequency = JMR3927_TIMER_CLK;
-#ifdef USE_RTC_DS1742
-        if (jmr3927_have_nvram()) {
-                rtc_ds1742_init(JMR3927_IOC_NVRAMB_ADDR);
-        }
-#endif
 }
 
 void __init plat_timer_setup(struct irqaction *irq)
@@ -202,9 +127,6 @@ void __init plat_timer_setup(struct irqaction *irq)
         setup_irq(JMR3927_IRQ_TICK, irq);
 }
 
-#define USECS_PER_JIFFY (1000000/HZ)
-
-//#undef DO_WRITE_THROUGH
 #define DO_WRITE_THROUGH
 #define DO_ENABLE_CACHE
 
@@ -236,12 +158,6 @@ void __init plat_mem_setup(void)
         /* Reboot on panic */
         panic_timeout = 180;
 
-        {
-                unsigned int conf;
-                conf = read_c0_conf();
-        }
-
-#if 1
         /* cache setup */
         {
                 unsigned int conf;
@@ -268,16 +184,14 @@ void __init plat_mem_setup(void)
                 write_c0_conf(conf);
                 write_c0_cache(0);
         }
-#endif
 
         /* initialize board */
         jmr3927_board_init();
 
         argptr = prom_getcmdline();
 
-        if ((argptr = strstr(argptr, "toeon")) != NULL) {
-                        jmr3927_ccfg_toeon = 1;
-        }
+        if ((argptr = strstr(argptr, "toeon")) != NULL)
+                jmr3927_ccfg_toeon = 1;
         argptr = prom_getcmdline();
         if ((argptr = strstr(argptr, "ip=")) == NULL) {
                 argptr = prom_getcmdline();
@@ -293,7 +207,7 @@ void __init plat_mem_setup(void)
                         memset(&req, 0, sizeof(req));
                         req.line = i;
                         req.iotype = UPIO_MEM;
-                        req.membase = (char *)TX3927_SIO_REG(i);
+                        req.membase = (unsigned char __iomem *)TX3927_SIO_REG(i);
                         req.mapbase = TX3927_SIO_REG(i);
                         req.irq = i == 0 ?
                                 JMR3927_IRQ_IRC_SIO0 : JMR3927_IRQ_IRC_SIO1;
@@ -315,65 +229,33 @@ void __init plat_mem_setup(void)
 
 static void tx3927_setup(void);
 
-#ifdef CONFIG_PCI
-unsigned long mips_pci_io_base;
-unsigned long mips_pci_io_size;
-unsigned long mips_pci_mem_base;
-unsigned long mips_pci_mem_size;
-/* for legacy I/O, PCI I/O PCI Bus address must be 0 */
-unsigned long mips_pci_io_pciaddr = 0;
-#endif
-
 static void __init jmr3927_board_init(void)
 {
-        char *argptr;
-
-#ifdef CONFIG_PCI
-        mips_pci_io_base = JMR3927_PCIIO;
-        mips_pci_io_size = JMR3927_PCIIO_SIZE;
-        mips_pci_mem_base = JMR3927_PCIMEM;
-        mips_pci_mem_size = JMR3927_PCIMEM_SIZE;
-#endif
-
         tx3927_setup();
 
-        if (jmr3927_have_isac()) {
-
-#ifdef CONFIG_FB_E1355
-                argptr = prom_getcmdline();
-                if ((argptr = strstr(argptr, "video=")) == NULL) {
-                        argptr = prom_getcmdline();
-                        strcat(argptr, " video=e1355fb:crt16h");
-                }
-#endif
-
-#ifdef CONFIG_BLK_DEV_IDE
-                /* overrides PCI-IDE */
-#endif
-        }
-
         /* SIO0 DTR on */
         jmr3927_ioc_reg_out(0, JMR3927_IOC_DTR_ADDR);
 
         jmr3927_led_set(0);
 
-
-        if (jmr3927_have_isac())
-                jmr3927_io_led_set(0);
         printk("JMR-TX3927 (Rev %d) --- IOC(Rev %d) DIPSW:%d,%d,%d,%d\n",
                jmr3927_ioc_reg_in(JMR3927_IOC_BREV_ADDR) & JMR3927_REV_MASK,
                jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR) & JMR3927_REV_MASK,
                jmr3927_dipsw1(), jmr3927_dipsw2(),
                jmr3927_dipsw3(), jmr3927_dipsw4());
-        if (jmr3927_have_isac())
-                printk("JMI-3927IO2 --- ISAC(Rev %d) DIPSW:%01x\n",
-                       jmr3927_isac_reg_in(JMR3927_ISAC_REV_ADDR) & JMR3927_REV_MASK,
-                       jmr3927_io_dipsw());
 }
 
-void __init tx3927_setup(void)
+static void __init tx3927_setup(void)
 {
         int i;
+#ifdef CONFIG_PCI
+        unsigned long mips_pci_io_base = JMR3927_PCIIO;
+        unsigned long mips_pci_io_size = JMR3927_PCIIO_SIZE;
+        unsigned long mips_pci_mem_base = JMR3927_PCIMEM;
+        unsigned long mips_pci_mem_size = JMR3927_PCIMEM_SIZE;
+        /* for legacy I/O, PCI I/O PCI Bus address must be 0 */
+        unsigned long mips_pci_io_pciaddr = 0;
+#endif
 
         /* SDRAMC are configured by PROM */
 
@@ -487,10 +369,8 @@ void __init tx3927_setup(void)
                 tx3927_pcicptr->mbas = ~(mips_pci_mem_size - 1);
                 tx3927_pcicptr->mba = 0;
                 tx3927_pcicptr->tlbmma = 0;
-#ifndef JMR3927_INIT_INDIRECT_PCI
                 /* Enable Direct mapping Address Space Decoder */
                 tx3927_pcicptr->lbc |= TX3927_PCIC_LBC_ILMDE | TX3927_PCIC_LBC_ILIDE;
-#endif
 
                 /* Clear All Local Bus Status */
                 tx3927_pcicptr->lbstat = TX3927_PCIC_LBIM_ALL;
@@ -503,22 +383,15 @@ void __init tx3927_setup(void)
 
                 /* PCIC Int => IRC IRQ10 */
                 tx3927_pcicptr->il = TX3927_IR_PCI;
-#if 1
                 /* Target Control (per errata) */
                 tx3927_pcicptr->tc = TX3927_PCIC_TC_OF8E | TX3927_PCIC_TC_IF8E;
-#endif
 
                 /* Enable Bus Arbiter */
-#if 0
-                tx3927_pcicptr->req_trace = 0x73737373;
-#endif
                 tx3927_pcicptr->pbapmc = TX3927_PCIC_PBAPMC_PBAEN;
 
                 tx3927_pcicptr->pcicmd = PCI_COMMAND_MASTER |
                         PCI_COMMAND_MEMORY |
-#if 1
                         PCI_COMMAND_IO |
-#endif
                         PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
         }
 #endif /* CONFIG_PCI */
@@ -544,3 +417,30 @@ void __init tx3927_setup(void)
                        printk("TX3927 D-Cache WriteBack (CWF) .\n");
         }
 }
+
+/* This trick makes rtc-ds1742 driver usable as is. */
+unsigned long __swizzle_addr_b(unsigned long port)
+{
+        if ((port & 0xffff0000) != JMR3927_IOC_NVRAMB_ADDR)
+                return port;
+        port = (port & 0xffff0000) | (port & 0x7fff << 1);
+#ifdef __BIG_ENDIAN
+        return port;
+#else
+        return port | 1;
+#endif
+}
+EXPORT_SYMBOL(__swizzle_addr_b);
+
+static int __init jmr3927_rtc_init(void)
+{
+        struct resource res = {
+                .start  = JMR3927_IOC_NVRAMB_ADDR - IO_BASE,
+                .end    = JMR3927_IOC_NVRAMB_ADDR - IO_BASE + 0x800 - 1,
+                .flags  = IORESOURCE_MEM,
+        };
+        struct platform_device *dev;
+        dev = platform_device_register_simple("ds1742", -1, &res, 1);
+        return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+device_initcall(jmr3927_rtc_init);