29 files changed, 210 insertions, 174 deletions

diff --git a/arch/blackfin/configs/BF526-EZBRD_defconfig b/arch/blackfin/configs/BF526-EZBRD_defconfig
index c33bf6f83813..4443a47e516f 100644
--- a/arch/blackfin/configs/BF526-EZBRD_defconfig
+++ b/arch/blackfin/configs/BF526-EZBRD_defconfig
@@ -748,7 +748,7 @@ CONFIG_BFIN_OTP=y
 #
 # CONFIG_CAN4LINUX is not set
 # CONFIG_IPMI_HANDLER is not set
-CONFIG_HW_RANDOM=y
+# CONFIG_HW_RANDOM is not set
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
 # CONFIG_TCG_TPM is not set
diff --git a/arch/blackfin/configs/BF527-EZKIT_defconfig b/arch/blackfin/configs/BF527-EZKIT_defconfig
index 66854a83c0de..4a2a660a6b35 100644
--- a/arch/blackfin/configs/BF527-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF527-EZKIT_defconfig
@@ -772,7 +772,7 @@ CONFIG_UNIX98_PTYS=y
 #
 # CONFIG_CAN4LINUX is not set
 # CONFIG_IPMI_HANDLER is not set
-CONFIG_HW_RANDOM=y
+# CONFIG_HW_RANDOM is not set
 # CONFIG_GEN_RTC is not set
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
diff --git a/arch/blackfin/configs/BF533-EZKIT_defconfig b/arch/blackfin/configs/BF533-EZKIT_defconfig
index 6bc11db12690..deeb5e45effb 100644
--- a/arch/blackfin/configs/BF533-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF533-EZKIT_defconfig
@@ -674,7 +674,7 @@ CONFIG_UNIX98_PTYS=y
 #
 # CONFIG_CAN4LINUX is not set
 # CONFIG_IPMI_HANDLER is not set
-CONFIG_HW_RANDOM=y
+# CONFIG_HW_RANDOM is not set
 # CONFIG_GEN_RTC is not set
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
@@ -740,7 +740,7 @@ CONFIG_SSB_POSSIBLE=y
 #
 # CONFIG_VIDEO_DEV is not set
 # CONFIG_DVB_CORE is not set
-CONFIG_DAB=y
+# CONFIG_DAB is not set
 
 #
 # Graphics support
diff --git a/arch/blackfin/configs/BF533-STAMP_defconfig b/arch/blackfin/configs/BF533-STAMP_defconfig
index d77d991a1f61..c23267ed880b 100644
--- a/arch/blackfin/configs/BF533-STAMP_defconfig
+++ b/arch/blackfin/configs/BF533-STAMP_defconfig
@@ -681,7 +681,7 @@ CONFIG_UNIX98_PTYS=y
 #
 # CONFIG_CAN4LINUX is not set
 # CONFIG_IPMI_HANDLER is not set
-CONFIG_HW_RANDOM=y
+# CONFIG_HW_RANDOM is not set
 # CONFIG_GEN_RTC is not set
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
diff --git a/arch/blackfin/configs/BF537-STAMP_defconfig b/arch/blackfin/configs/BF537-STAMP_defconfig
index 5fd7c4b143df..63a0f854745c 100644
--- a/arch/blackfin/configs/BF537-STAMP_defconfig
+++ b/arch/blackfin/configs/BF537-STAMP_defconfig
@@ -731,7 +731,7 @@ CONFIG_CAN4LINUX=y
 # CONFIG_CAN_UNCTWINCAN is not set
 CONFIG_CAN_BLACKFIN=m
 # CONFIG_IPMI_HANDLER is not set
-CONFIG_HW_RANDOM=y
+# CONFIG_HW_RANDOM is not set
 # CONFIG_GEN_RTC is not set
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
@@ -871,7 +871,7 @@ CONFIG_SSB_POSSIBLE=y
 #
 # CONFIG_VIDEO_DEV is not set
 # CONFIG_DVB_CORE is not set
-CONFIG_DAB=y
+# CONFIG_DAB is not set
 
 #
 # Graphics support
diff --git a/arch/blackfin/configs/BF548-EZKIT_defconfig b/arch/blackfin/configs/BF548-EZKIT_defconfig
index 390669e8668e..bf63660815b9 100644
--- a/arch/blackfin/configs/BF548-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF548-EZKIT_defconfig
@@ -855,7 +855,7 @@ CONFIG_UNIX98_PTYS=y
 #
 # CONFIG_CAN4LINUX is not set
 # CONFIG_IPMI_HANDLER is not set
-CONFIG_HW_RANDOM=y
+# CONFIG_HW_RANDOM is not set
 # CONFIG_GEN_RTC is not set
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
@@ -1001,7 +1001,7 @@ CONFIG_SSB_POSSIBLE=y
 #
 # CONFIG_VIDEO_DEV is not set
 # CONFIG_DVB_CORE is not set
-CONFIG_DAB=y
+# CONFIG_DAB is not set
 # CONFIG_USB_DABUSB is not set
 
 #
diff --git a/arch/blackfin/configs/BF561-EZKIT_defconfig b/arch/blackfin/configs/BF561-EZKIT_defconfig
index 976a4d7ba175..3c70d6230a12 100644
--- a/arch/blackfin/configs/BF561-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF561-EZKIT_defconfig
@@ -719,7 +719,7 @@ CONFIG_UNIX98_PTYS=y
 #
 # CONFIG_CAN4LINUX is not set
 # CONFIG_IPMI_HANDLER is not set
-CONFIG_HW_RANDOM=y
+# CONFIG_HW_RANDOM is not set
 # CONFIG_GEN_RTC is not set
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
@@ -785,7 +785,7 @@ CONFIG_SSB_POSSIBLE=y
 #
 # CONFIG_VIDEO_DEV is not set
 # CONFIG_DVB_CORE is not set
-CONFIG_DAB=y
+# CONFIG_DAB is not set
 
 #
 # Graphics support
diff --git a/arch/blackfin/configs/CM-BF527_defconfig b/arch/blackfin/configs/CM-BF527_defconfig
index 0799aa9bba9d..b6a14635fb91 100644
--- a/arch/blackfin/configs/CM-BF527_defconfig
+++ b/arch/blackfin/configs/CM-BF527_defconfig
@@ -679,7 +679,7 @@ CONFIG_UNIX98_PTYS=y
 #
 # CONFIG_CAN4LINUX is not set
 # CONFIG_IPMI_HANDLER is not set
-CONFIG_HW_RANDOM=y
+# CONFIG_HW_RANDOM is not set
 # CONFIG_GEN_RTC is not set
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
diff --git a/arch/blackfin/configs/CM-BF533_defconfig b/arch/blackfin/configs/CM-BF533_defconfig
index 09deea44480b..c3ba9066b935 100644
--- a/arch/blackfin/configs/CM-BF533_defconfig
+++ b/arch/blackfin/configs/CM-BF533_defconfig
@@ -672,7 +672,7 @@ CONFIG_HWMON=y
 #
 # CONFIG_VIDEO_DEV is not set
 # CONFIG_DVB_CORE is not set
-CONFIG_DAB=y
+# CONFIG_DAB is not set
 
 #
 # Graphics support
diff --git a/arch/blackfin/configs/CM-BF537E_defconfig b/arch/blackfin/configs/CM-BF537E_defconfig
index 219fc345a5f5..cdc6b7feb59e 100644
--- a/arch/blackfin/configs/CM-BF537E_defconfig
+++ b/arch/blackfin/configs/CM-BF537E_defconfig
@@ -703,7 +703,7 @@ CONFIG_HWMON=y
 #
 # CONFIG_VIDEO_DEV is not set
 # CONFIG_DVB_CORE is not set
-CONFIG_DAB=y
+# CONFIG_DAB is not set
 
 #
 # Graphics support
diff --git a/arch/blackfin/configs/CM-BF537U_defconfig b/arch/blackfin/configs/CM-BF537U_defconfig
index 9873d586fc77..f074bdcd1ce5 100644
--- a/arch/blackfin/configs/CM-BF537U_defconfig
+++ b/arch/blackfin/configs/CM-BF537U_defconfig
@@ -683,7 +683,7 @@ CONFIG_HWMON=y
 #
 # CONFIG_VIDEO_DEV is not set
 # CONFIG_DVB_CORE is not set
-CONFIG_DAB=y
+# CONFIG_DAB is not set
 
 #
 # Graphics support
diff --git a/arch/blackfin/configs/CM-BF548_defconfig b/arch/blackfin/configs/CM-BF548_defconfig
index 0e3605fdb7b0..5c44fdb8e6e3 100644
--- a/arch/blackfin/configs/CM-BF548_defconfig
+++ b/arch/blackfin/configs/CM-BF548_defconfig
@@ -762,7 +762,7 @@ CONFIG_UNIX98_PTYS=y
 #
 # CONFIG_CAN4LINUX is not set
 # CONFIG_IPMI_HANDLER is not set
-CONFIG_HW_RANDOM=y
+# CONFIG_HW_RANDOM is not set
 # CONFIG_GEN_RTC is not set
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
@@ -909,7 +909,7 @@ CONFIG_SSB_POSSIBLE=y
 #
 # CONFIG_VIDEO_DEV is not set
 # CONFIG_DVB_CORE is not set
-CONFIG_DAB=y
+# CONFIG_DAB is not set
 # CONFIG_USB_DABUSB is not set
 
 #
diff --git a/arch/blackfin/configs/CM-BF561_defconfig b/arch/blackfin/configs/CM-BF561_defconfig
index 59c7cdbee904..086fe5dda495 100644
--- a/arch/blackfin/configs/CM-BF561_defconfig
+++ b/arch/blackfin/configs/CM-BF561_defconfig
@@ -684,7 +684,7 @@ CONFIG_SSB_POSSIBLE=y
 #
 # CONFIG_VIDEO_DEV is not set
 # CONFIG_DVB_CORE is not set
-CONFIG_DAB=y
+# CONFIG_DAB is not set
 
 #
 # Graphics support
diff --git a/arch/blackfin/include/asm/cacheflush.h b/arch/blackfin/include/asm/cacheflush.h
index 5ef9e35e9c3b..4403415583fa 100644
--- a/arch/blackfin/include/asm/cacheflush.h
+++ b/arch/blackfin/include/asm/cacheflush.h
@@ -30,11 +30,11 @@
 #ifndef _BLACKFIN_CACHEFLUSH_H
 #define _BLACKFIN_CACHEFLUSH_H
 
-extern void blackfin_icache_dcache_flush_range(unsigned int, unsigned int);
-extern void blackfin_icache_flush_range(unsigned int, unsigned int);
-extern void blackfin_dcache_flush_range(unsigned int, unsigned int);
-extern void blackfin_dcache_invalidate_range(unsigned int, unsigned int);
-extern void blackfin_dflush_page(void *);
+extern void blackfin_icache_dcache_flush_range(unsigned long start_address, unsigned long end_address);
+extern void blackfin_icache_flush_range(unsigned long start_address, unsigned long end_address);
+extern void blackfin_dcache_flush_range(unsigned long start_address, unsigned long end_address);
+extern void blackfin_dcache_invalidate_range(unsigned long start_address, unsigned long end_address);
+extern void blackfin_dflush_page(void *page);
 
 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
@@ -85,4 +85,21 @@ do { memcpy(dst, src, len); \
 # define flush_dcache_page(page)                        do { } while (0)
 #endif
 
+extern unsigned long reserved_mem_dcache_on;
+extern unsigned long reserved_mem_icache_on;
+
+static inline int bfin_addr_dcachable(unsigned long addr)
+{
+#ifdef CONFIG_BFIN_DCACHE
+        if (addr < (_ramend - DMA_UNCACHED_REGION))
+                return 1;
+#endif
+
+        if (reserved_mem_dcache_on &&
+                addr >= _ramend && addr < physical_mem_end)
+                return 1;
+
+        return 0;
+}
+
 #endif                          /* _BLACKFIN_ICACHEFLUSH_H */
diff --git a/arch/blackfin/include/asm/cplbinit.h b/arch/blackfin/include/asm/cplbinit.h
index d179b747ff03..f845b41147ba 100644
--- a/arch/blackfin/include/asm/cplbinit.h
+++ b/arch/blackfin/include/asm/cplbinit.h
@@ -87,23 +87,6 @@ extern u_long dpdt_swapcount_table[];
 
 #endif /* CONFIG_MPU */
 
-extern unsigned long reserved_mem_dcache_on;
-extern unsigned long reserved_mem_icache_on;
-
 extern void generate_cplb_tables(void);
 
-static inline int bfin_addr_dcachable(unsigned long addr)
-{
-#ifdef CONFIG_BFIN_DCACHE
-        if (addr < (_ramend - DMA_UNCACHED_REGION))
-                return 1;
-#endif
-
-        if (reserved_mem_dcache_on &&
-                addr >= _ramend && addr < physical_mem_end)
-                return 1;
-
-        return 0;
-}
-
 #endif
diff --git a/arch/blackfin/include/asm/io.h b/arch/blackfin/include/asm/io.h
index cbbf7ffdbbff..7dc77a21fdf3 100644
--- a/arch/blackfin/include/asm/io.h
+++ b/arch/blackfin/include/asm/io.h
@@ -134,6 +134,36 @@ extern void dma_insb(unsigned long port, void *addr, unsigned short count);
 extern void dma_insw(unsigned long port, void *addr, unsigned short count);
 extern void dma_insl(unsigned long port, void *addr, unsigned short count);
 
+static inline void readsl(const void __iomem *addr, void *buf, int len)
+{
+        insl((unsigned long)addr, buf, len);
+}
+
+static inline void readsw(const void __iomem *addr, void *buf, int len)
+{
+        insw((unsigned long)addr, buf, len);
+}
+
+static inline void readsb(const void __iomem *addr, void *buf, int len)
+{
+        insb((unsigned long)addr, buf, len);
+}
+
+static inline void writesl(const void __iomem *addr, const void *buf, int len)
+{
+        outsl((unsigned long)addr, buf, len);
+}
+
+static inline void writesw(const void __iomem *addr, const void *buf, int len)
+{
+        outsw((unsigned long)addr, buf, len);
+}
+
+static inline void writesb(const void __iomem *addr, const void *buf, int len)
+{
+        outsb((unsigned long)addr, buf, len);
+}
+
 /*
  * Map some physical address range into the kernel address space.
  */
diff --git a/arch/blackfin/include/asm/timex.h b/arch/blackfin/include/asm/timex.h
index 22b0806161bb..248aeb066805 100644
--- a/arch/blackfin/include/asm/timex.h
+++ b/arch/blackfin/include/asm/timex.h
@@ -16,7 +16,7 @@ typedef unsigned long long cycles_t;
 static inline cycles_t get_cycles(void)
 {
         unsigned long tmp, tmp2;
-        __asm__("%0 = cycles; %1 = cycles2;" : "=d"(tmp), "=d"(tmp2));
+        __asm__ __volatile__("%0 = cycles; %1 = cycles2;" : "=d"(tmp), "=d"(tmp2));
         return tmp | ((cycles_t)tmp2 << 32);
 }
 
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
index 5094677fd09e..baa52e261f0d 100644
--- a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
+++ b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
@@ -21,6 +21,7 @@
 #include <linux/mm.h>
 
 #include <asm/blackfin.h>
+#include <asm/cacheflush.h>
 #include <asm/cplbinit.h>
 #include <asm/mmu_context.h>
 
@@ -144,9 +145,7 @@ static noinline int dcplb_miss(void)
 
         d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB;
 #ifdef CONFIG_BFIN_DCACHE
-        if (addr < _ramend - DMA_UNCACHED_REGION ||
-            (reserved_mem_dcache_on && addr >= _ramend &&
-             addr < physical_mem_end)) {
+        if (bfin_addr_dcachable(addr)) {
                 d_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND;
 #ifdef CONFIG_BFIN_WT
                 d_data |= CPLB_L1_AOW | CPLB_WT;
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
index 301252e84441..512f8c92ead5 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
@@ -23,6 +23,7 @@
 #include <linux/module.h>
 
 #include <asm/blackfin.h>
+#include <asm/cacheflush.h>
 #include <asm/cplb.h>
 #include <asm/cplbinit.h>
 
diff --git a/arch/blackfin/mach-bf527/head.S b/arch/blackfin/mach-bf527/head.S
index 6588170e3845..0eb1da85db73 100644
--- a/arch/blackfin/mach-bf527/head.S
+++ b/arch/blackfin/mach-bf527/head.S
@@ -88,7 +88,7 @@ ENTRY(_start_dma_code)
         r1 = r1 << 8;                    /* Shift it over                   */
         r0 = r1 | r0;                    /* add them all together           */
 #ifdef ANOMALY_05000265
-        r0 = BITSET(r0, 15);             /* Add 250 mV of hysteresis to SPORT input pins */
+        BITSET(r0, 15);                  /* Add 250 mV of hysteresis to SPORT input pins */
 #endif
 
         p0.h = hi(PLL_CTL);
diff --git a/arch/blackfin/mach-bf533/head.S b/arch/blackfin/mach-bf533/head.S
index 619685b94d90..9fc95aaca439 100644
--- a/arch/blackfin/mach-bf533/head.S
+++ b/arch/blackfin/mach-bf533/head.S
@@ -79,7 +79,7 @@ ENTRY(_start_dma_code)
         r1 = r1 << 8;                    /* Shift it over                   */
         r0 = r1 | r0;                    /* add them all together           */
 #ifdef ANOMALY_05000265
-        r0 = BITSET(r0, 15);             /* Add 250 mV of hysteresis to SPORT input pins */
+        BITSET(r0, 15);                  /* Add 250 mV of hysteresis to SPORT input pins */
 #endif
 
         p0.h = hi(PLL_CTL);
diff --git a/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h
index 34ab0e4e4242..f3d9e495230c 100644
--- a/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h
@@ -158,7 +158,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart)
         }
         if (uart->rts_pin >= 0) {
                 gpio_request(uart->rts_pin, DRIVER_NAME);
-                gpio_direction_input(uart->rts_pin, 0);
+                gpio_direction_output(uart->rts_pin, 0);
         }
 #endif
 }
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index dc5a30849c15..8d394393201f 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -577,11 +577,6 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
 
 #if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
 #include <linux/spi/ad7879.h>
-static struct bfin5xx_spi_chip spi_ad7879_chip_info = {
-        .enable_dma = 0,
-        .bits_per_word = 16,
-};
-
 static const struct ad7879_platform_data bfin_ad7879_ts_info = {
         .model                  = 7879, /* Model = AD7879 */
         .x_plate_ohms           = 620,  /* 620 Ohm from the touch datasheet */
@@ -597,6 +592,13 @@ static const struct ad7879_platform_data bfin_ad7879_ts_info = {
 };
 #endif
 
+#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+static struct bfin5xx_spi_chip spi_ad7879_chip_info = {
+        .enable_dma = 0,
+        .bits_per_word = 16,
+};
+#endif
+
 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 static struct bfin5xx_spi_chip spidev_chip_info = {
         .enable_dma = 0,
@@ -750,7 +752,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .controller_data = &spi_ad7877_chip_info,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
+#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
         {
                 .modalias = "ad7879",
                 .platform_data = &bfin_ad7879_ts_info,
@@ -935,7 +937,7 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 #if defined(CONFIG_JOYSTICK_AD7142) || defined(CONFIG_JOYSTICK_AD7142_MODULE)
         {
                 I2C_BOARD_INFO("ad7142_joystick", 0x2C),
-                .irq = 55,
+                .irq = IRQ_PF5,
         },
 #endif
 #if defined(CONFIG_TWI_LCD) || defined(CONFIG_TWI_LCD_MODULE)
@@ -946,7 +948,14 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 #if defined(CONFIG_TWI_KEYPAD) || defined(CONFIG_TWI_KEYPAD_MODULE)
         {
                 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
-                .irq = 72,
+                .irq = IRQ_PG6,
+        },
+#endif
+#if defined(CONFIG_TOUCHSCREEN_AD7879_I2C) || defined(CONFIG_TOUCHSCREEN_AD7879_I2C_MODULE)
+        {
+                I2C_BOARD_INFO("ad7879", 0x2F),
+                .irq = IRQ_PG5,
+                .platform_data = (void *)&bfin_ad7879_ts_info,
         },
 #endif
 };
diff --git a/arch/blackfin/mach-bf537/head.S b/arch/blackfin/mach-bf537/head.S
index 559a7eef7a38..f5c94bf80e3b 100644
--- a/arch/blackfin/mach-bf537/head.S
+++ b/arch/blackfin/mach-bf537/head.S
@@ -88,7 +88,7 @@ ENTRY(_start_dma_code)
         r1 = r1 << 8;                    /* Shift it over                   */
         r0 = r1 | r0;                    /* add them all together           */
 #ifdef ANOMALY_05000265
-        r0 = BITSET(r0, 15);             /* Add 250 mV of hysteresis to SPORT input pins */
+        BITSET(r0, 15);                  /* Add 250 mV of hysteresis to SPORT input pins */
 #endif
 
         p0.h = hi(PLL_CTL);
diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S
index 051b05c88027..93b361dff27b 100644
--- a/arch/blackfin/mach-bf548/head.S
+++ b/arch/blackfin/mach-bf548/head.S
@@ -95,7 +95,7 @@ ENTRY(_start_dma_code)
         r1 = r1 << 8;                    /* Shift it over                   */
         r0 = r1 | r0;                    /* add them all together           */
 #ifdef ANOMALY_05000265
-        r0 = BITSET(r0, 15);             /* Add 250 mV of hysteresis to SPORT input pins */
+        BITSET(r0, 15);                  /* Add 250 mV of hysteresis to SPORT input pins */
 #endif
 
         p0.h = hi(PLL_CTL);
diff --git a/arch/blackfin/mach-bf561/head.S b/arch/blackfin/mach-bf561/head.S
index 0b28137b3dea..31a777a9e699 100644
--- a/arch/blackfin/mach-bf561/head.S
+++ b/arch/blackfin/mach-bf561/head.S
@@ -78,7 +78,7 @@ ENTRY(_start_dma_code)
         r1 = r1 << 8;                    /* Shift it over                   */
         r0 = r1 | r0;                    /* add them all together           */
 #ifdef ANOMALY_05000265
-        r0 = BITSET(r0, 15);             /* Add 250 mV of hysteresis to SPORT input pins */
+        BITSET(r0, 15);                  /* Add 250 mV of hysteresis to SPORT input pins */
 #endif
 
         p0.h = hi(PLL_CTL);
diff --git a/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h
index f5327264357c..043bfcf26c52 100644
--- a/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h
@@ -158,7 +158,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart)
         }
         if (uart->rts_pin >= 0) {
                 gpio_request(uart->rts_pin, DRIVER_NAME);
-                gpio_direction_input(uart->rts_pin, 0);
+                gpio_direction_output(uart->rts_pin, 0);
         }
 #endif
 }
diff --git a/arch/blackfin/mach-common/cache.S b/arch/blackfin/mach-common/cache.S
index 85f8c79b3c37..db532181fbde 100644
--- a/arch/blackfin/mach-common/cache.S
+++ b/arch/blackfin/mach-common/cache.S
@@ -1,148 +1,91 @@
 /*
- * File:         arch/blackfin/mach-common/cache.S
- * Based on:
- * Author:       LG Soft India
+ * Blackfin cache control code
  *
- * Created:
- * Description:  cache control support
+ * Copyright 2004-2008 Analog Devices Inc.
  *
- * Modified:
- *               Copyright 2004-2006 Analog Devices Inc.
+ * Enter bugs at http://blackfin.uclinux.org/
  *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ * Licensed under the GPL-2 or later.
  */
 
 #include <linux/linkage.h>
-#include <asm/cplb.h>
-#include <asm/entry.h>
 #include <asm/blackfin.h>
 #include <asm/cache.h>
+#include <asm/page.h>
 
 .text
 
-/*
- * blackfin_cache_flush_range(start, end)
- * Invalidate all cache lines assocoiated with this
- * area of memory.
+/* Since all L1 caches work the same way, we use the same method for flushing
+ * them.  Only the actual flush instruction differs.  We write this in asm as
+ * GCC can be hard to coax into writing nice hardware loops.
  *
- * start:       Start address
- * end:         End address
+ * Also, we assume the following register setup:
+ * R0 = start address
+ * R1 = end address
  */
-ENTRY(_blackfin_icache_flush_range)
+.macro do_flush flushins:req optflushins optnopins label
+
+        /* end = ((end - 1) & -L1_CACHE_BYTES) + L1_CACHE_BYTES; */
+        R1 += -1;
         R2 = -L1_CACHE_BYTES;
-        R2 = R0 & R2;
-        P0 = R2;
-        P1 = R1;
-        CSYNC(R3);
-        IFLUSH [P0];
+        R1 = R1 & R2;
+        R1 += L1_CACHE_BYTES;
+
+        /* count = (end - start) >> L1_CACHE_SHIFT */
+        R2 = R1 - R0;
+        R2 >>= L1_CACHE_SHIFT;
+        P1 = R2;
+
+.ifnb \label
+\label :
+.endif
+        P0 = R0;
+        LSETUP (1f, 2f) LC1 = P1;
 1:
-        IFLUSH [P0++];
-        CC = P0 < P1 (iu);
-        IF CC JUMP 1b (bp);
-        IFLUSH [P0];
-        SSYNC(R3);
+.ifnb \optflushins
+        \optflushins [P0];
+.endif
+.ifb \optnopins
+2:
+.endif
+        \flushins [P0++];
+.ifnb \optnopins
+2: \optnopins;
+.endif
+
         RTS;
-ENDPROC(_blackfin_icache_flush_range)
+.endm
 
-/*
- * blackfin_icache_dcache_flush_range(start, end)
- * FLUSH all cache lines assocoiated with this
- * area of memory.
- *
- * start:       Start address
- * end:         End address
- */
+/* Invalidate all instruction cache lines assocoiated with this memory area */
+ENTRY(_blackfin_icache_flush_range)
+        do_flush IFLUSH, , nop
+ENDPROC(_blackfin_icache_flush_range)
 
+/* Flush all cache lines assocoiated with this area of memory. */
 ENTRY(_blackfin_icache_dcache_flush_range)
-        R2 = -L1_CACHE_BYTES;
-        R2 = R0 & R2;
-        P0 = R2;
-        P1 = R1;
-        CSYNC(R3);
-        IFLUSH [P0];
-1:
-        FLUSH [P0];
-        IFLUSH [P0++];
-        CC = P0 < P1 (iu);
-        IF CC JUMP 1b (bp);
-        IFLUSH [P0];
-        FLUSH [P0];
-        SSYNC(R3);
-        RTS;
+        do_flush IFLUSH, FLUSH
 ENDPROC(_blackfin_icache_dcache_flush_range)
 
 /* Throw away all D-cached data in specified region without any obligation to
- * write them back. However, we must clean the D-cached entries around the
- * boundaries of the start and/or end address is not cache aligned.
- *
- * Start: start address,
- * end  : end address.
+ * write them back.  Since the Blackfin ISA does not have an "invalidate"
+ * instruction, we use flush/invalidate.  Perhaps as a speed optimization we
+ * could bang on the DTEST MMRs ...
  */
-
 ENTRY(_blackfin_dcache_invalidate_range)
-        R2 = -L1_CACHE_BYTES;
-        R2 = R0 & R2;
-        P0 = R2;
-        P1 = R1;
-        CSYNC(R3);
-        FLUSHINV[P0];
-1:
-        FLUSHINV[P0++];
-        CC = P0 < P1 (iu);
-        IF CC JUMP 1b (bp);
-
-        /* If the data crosses a cache line, then we'll be pointing to
-         * the last cache line, but won't have flushed/invalidated it yet,
-         * so do one more.
-         */
-        FLUSHINV[P0];
-        SSYNC(R3);
-        RTS;
+        do_flush FLUSHINV
 ENDPROC(_blackfin_dcache_invalidate_range)
 
+/* Flush all data cache lines assocoiated with this memory area */
 ENTRY(_blackfin_dcache_flush_range)
-        R2 = -L1_CACHE_BYTES;
-        R2 = R0 & R2;
-        P0 = R2;
-        P1 = R1;
-        CSYNC(R3);
-        FLUSH[P0];
-1:
-        FLUSH[P0++];
-        CC = P0 < P1 (iu);
-        IF CC JUMP 1b (bp);
-
-        /* If the data crosses a cache line, then we'll be pointing to
-         * the last cache line, but won't have flushed it yet, so do
-         * one more.
-         */
-        FLUSH[P0];
-        SSYNC(R3);
-        RTS;
+        do_flush FLUSH, , , .Ldfr
 ENDPROC(_blackfin_dcache_flush_range)
 
+/* Our headers convert the page structure to an address, so just need to flush
+ * its contents like normal.  We know the start address is page aligned (which
+ * greater than our cache alignment), as is the end address.  So just jump into
+ * the middle of the dcache flush function.
+ */
 ENTRY(_blackfin_dflush_page)
         P1 = 1 << (PAGE_SHIFT - L1_CACHE_SHIFT);
-        P0 = R0;
-        CSYNC(R3);
-        FLUSH[P0];
-        LSETUP (.Lfl1, .Lfl1) LC0 = P1;
-.Lfl1:  FLUSH [P0++];
-        SSYNC(R3);
-        RTS;
+        jump .Ldfr;
 ENDPROC(_blackfin_dflush_page)
diff --git a/arch/blackfin/mach-common/head.S b/arch/blackfin/mach-common/head.S
index 3069df580729..f123a62e2451 100644
--- a/arch/blackfin/mach-common/head.S
+++ b/arch/blackfin/mach-common/head.S
@@ -206,6 +206,60 @@ ENTRY(_real_start)
         w[p0] = r0;
         ssync;
 
+#if L1_DATA_A_LENGTH > 0
+        r1.l = __sbss_l1;
+        r1.h = __sbss_l1;
+        r2.l = __ebss_l1;
+        r2.h = __ebss_l1;
+        r0 = 0 (z);
+        r2 = r2 - r1;
+        cc = r2 == 0;
+        if cc jump .L_a_l1_done;
+        r2 >>= 2;
+        p1 = r1;
+        p2 = r2;
+        lsetup (.L_clear_a_l1, .L_clear_a_l1 ) lc0 = p2;
+.L_clear_a_l1:
+        [p1++] = r0;
+.L_a_l1_done:
+#endif
+
+#if L1_DATA_B_LENGTH > 0
+        r1.l = __sbss_b_l1;
+        r1.h = __sbss_b_l1;
+        r2.l = __ebss_b_l1;
+        r2.h = __ebss_b_l1;
+        r0 = 0 (z);
+        r2 = r2 - r1;
+        cc = r2 == 0;
+        if cc jump .L_b_l1_done;
+        r2 >>= 2;
+        p1 = r1;
+        p2 = r2;
+        lsetup (.L_clear_b_l1, .L_clear_b_l1 ) lc0 = p2;
+.L_clear_b_l1:
+        [p1++] = r0;
+.L_b_l1_done:
+#endif
+
+#if L2_LENGTH > 0
+        r1.l = __sbss_l2;
+        r1.h = __sbss_l2;
+        r2.l = __ebss_l2;
+        r2.h = __ebss_l2;
+        r0 = 0 (z);
+        r2 = r2 - r1;
+        cc = r2 == 0;
+        if cc jump .L_l2_done;
+        r2 >>= 2;
+        p1 = r1;
+        p2 = r2;
+        lsetup (.L_clear_l2, .L_clear_l2 ) lc0 = p2;
+.L_clear_l2:
+        [p1++] = r0;
+.L_l2_done:
+#endif
+
         /* Zero out the bss region
          * Note: this will fail if bss is 0 bytes ...
          */