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 b7b5414d9320..a41ba229c564 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 f06d8a43fdee..69134c7518c1 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 0991b7bc3f78..c025ab47e4b9 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.