1 files changed, 27 insertions, 0 deletions

diff --git a/arch/m68k/include/uapi/asm/swab.h b/arch/m68k/include/uapi/asm/swab.h
new file mode 100644
index 000000000000..b7b37a40defc
--- /dev/null
+++ b/arch/m68k/include/uapi/asm/swab.h
@@ -0,0 +1,27 @@
+#ifndef _M68K_SWAB_H
+#define _M68K_SWAB_H
+
+#include <linux/types.h>
+#include <linux/compiler.h>
+
+#define __SWAB_64_THRU_32__
+
+#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
+#elif !defined(__mcoldfire__)
+
+static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
+{
+        __asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val));
+        return val;
+}
+#define __arch_swab32 __arch_swab32
+#endif
+
+#endif /* _M68K_SWAB_H */