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authorHarvey Harrison <harvey.harrison@gmail.com>2009-01-06 14:56:32 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 18:10:28 -0800
commit231cc432f4d684b8c75d9a8e0654c51b9d6ed341 (patch)
treeeeb894f901a7570dc0f56a9b894f0745ad55c9af /arch/m68knommu/include/asm/swab.h
parentfc61708b3afe1bdd05c14b65c0ae2f4ad2a3928a (diff)
m68knommu: introduce asm/swab.h
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/m68knommu/include/asm/swab.h')
-rw-r--r--arch/m68knommu/include/asm/swab.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/m68knommu/include/asm/swab.h b/arch/m68knommu/include/asm/swab.h
new file mode 100644
index 00000000000..e582257db30
--- /dev/null
+++ b/arch/m68knommu/include/asm/swab.h
@@ -0,0 +1,24 @@
+#ifndef _M68KNOMMU_SWAB_H
+#define _M68KNOMMU_SWAB_H
+
+#include <linux/types.h>
+
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+# define __SWAB_64_THRU_32__
+#endif
+
+#if defined (__mcfisaaplus__) || defined (__mcfisac__)
+static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
+{
+ asm(
+ "byterev %0"
+ : "=d" (val)
+ : "0" (val)
+ );
+ return val;
+}
+
+#define __arch_swab32 __arch_swab32
+#endif
+
+#endif /* _M68KNOMMU_SWAB_H */