m68knommu: introduce asm/swab.h
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/m68knommu/include/asm/swab.h b/arch/m68knommu/include/asm/swab.h
new file mode 100644
index 0000000..e582257
--- /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 */