Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 4298/1: fix memory barriers for DMA coherent and SMP platforms
  [ARM] 4295/2: Fix error-handling in pxaficp_ir.c (version 2)
  [ARM] Fix __NR_kexec_load
  [ARM] Export dma_channel_active()
  [ARM] 4296/1: ixp4xx: compile fix
  [ARM] 4289/1: AT91: SAM9260 NAND flash timing

3 files changed, 19 insertions, 34 deletions

diff --git a/include/asm-arm/arch-ixp4xx/io.h b/include/asm-arm/arch-ixp4xx/io.h
index b7b5414d932..a41ba229c56 100644
--- a/include/asm-arm/arch-ixp4xx/io.h
+++ b/include/asm-arm/arch-ixp4xx/io.h
@@ -238,23 +238,6 @@ __ixp4xx_readsl(const volatile void __iomem *bus_addr, u32 *vaddr, u32 count)
 #define memcpy_fromio(a,c,l)            _memcpy_fromio((a),(c),(l))
 #define memcpy_toio(c,a,l)              _memcpy_toio((c),(a),(l))
 
-static inline int
-check_signature(const unsigned char __iomem *bus_addr, const unsigned char *signature,
-                int length)
-{
-        int retval = 0;
-        do {
-                if (readb(bus_addr) != *signature)
-                        goto out;
-                bus_addr++;
-                signature++;
-                length--;
-        } while (length);
-        retval = 1;
-out:
-        return retval;
-}
-
 #endif
 
 #ifndef CONFIG_PCI
diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h
index f06d8a43fde..69134c7518c 100644
--- a/include/asm-arm/system.h
+++ b/include/asm-arm/system.h
@@ -3,6 +3,7 @@
 
 #ifdef __KERNEL__
 
+#include <asm/memory.h>
 
 #define CPU_ARCH_UNKNOWN        0
 #define CPU_ARCH_ARMv3          1
@@ -154,7 +155,7 @@ extern unsigned int user_debug;
 #define vectors_high()  (0)
 #endif
 
-#if __LINUX_ARM_ARCH__ >= 6
+#if defined(CONFIG_CPU_XSC3) || __LINUX_ARM_ARCH__ >= 6
 #define isb() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c5, 4" \
                                     : : "r" (0) : "memory")
 #define dsb() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 4" \
@@ -168,22 +169,23 @@ extern unsigned int user_debug;
 #define dmb() __asm__ __volatile__ ("" : : : "memory")
 #endif
 
-#define mb()                    barrier()
-#define rmb()                   barrier()
-#define wmb()                   barrier()
-#define read_barrier_depends()  do { } while(0)
-
-#ifdef CONFIG_SMP
-#define smp_mb()                dmb()
-#define smp_rmb()               dmb()
-#define smp_wmb()               dmb()
-#define smp_read_barrier_depends()      read_barrier_depends()
+#ifndef CONFIG_SMP
+#define mb()    do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
+#define rmb()   do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
+#define wmb()   do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
+#define smp_mb()        barrier()
+#define smp_rmb()       barrier()
+#define smp_wmb()       barrier()
 #else
-#define smp_mb()                barrier()
-#define smp_rmb()               barrier()
-#define smp_wmb()               barrier()
-#define smp_read_barrier_depends()      read_barrier_depends()
-#endif /* CONFIG_SMP */
+#define mb()            dmb()
+#define rmb()           dmb()
+#define wmb()           dmb()
+#define smp_mb()        dmb()
+#define smp_rmb()       dmb()
+#define smp_wmb()       dmb()
+#endif
+#define read_barrier_depends()          do { } while(0)
+#define smp_read_barrier_depends()      do { } while(0)
 
 #define set_mb(var, value)      do { var = value; smp_mb(); } while (0)
 #define nop() __asm__ __volatile__("mov\tr0,r0\t@ nop\n\t");
diff --git a/include/asm-arm/unistd.h b/include/asm-arm/unistd.h
index 0991b7bc3f7..c025ab47e4b 100644
--- a/include/asm-arm/unistd.h
+++ b/include/asm-arm/unistd.h
@@ -372,7 +372,7 @@
 #define __NR_move_pages                 (__NR_SYSCALL_BASE+344)
 #define __NR_getcpu                     (__NR_SYSCALL_BASE+345)
                                         /* 346 for epoll_pwait */
-#define __NR_sys_kexec_load             (__NR_SYSCALL_BASE+347)
+#define __NR_kexec_load                 (__NR_SYSCALL_BASE+347)
 
 /*
  * The following SWIs are ARM private.