diff --git a/arch/m68knommu/include/asm/Kbuild b/arch/m68knommu/include/asm/Kbuild
index c68e1680da0173d5754d1a1df4944120a5239e58..58c02a454130c659c2f8c5c3afdc8de682445cf5 100644
--- a/arch/m68knommu/include/asm/Kbuild
+++ b/arch/m68knommu/include/asm/Kbuild
@@ -1 +1,3 @@
 include include/asm-generic/Kbuild.asm
+
+unifdef-y += swab.h
diff --git a/arch/m68knommu/include/asm/byteorder.h b/arch/m68knommu/include/asm/byteorder.h
index 20bb4426b610e7665b08c6a6f34b005fea665d18..a6f0b8f7f6227d63e3a21700e17fd08e090ffe14 100644
--- a/arch/m68knommu/include/asm/byteorder.h
+++ b/arch/m68knommu/include/asm/byteorder.h
@@ -1,27 +1,7 @@
 #ifndef _M68KNOMMU_BYTEORDER_H
 #define _M68KNOMMU_BYTEORDER_H
 
-#include <linux/types.h>
-
-#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
-#  define __BYTEORDER_HAS_U64__
-#  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(x) ___arch__swab32(x)
-#endif
-
+#include <asm/swab.h>
 #include <linux/byteorder/big_endian.h>
 
 #endif /* _M68KNOMMU_BYTEORDER_H */
diff --git a/arch/m68knommu/include/asm/swab.h b/arch/m68knommu/include/asm/swab.h
new file mode 100644
index 0000000000000000000000000000000000000000..e582257db3003304a974df3a59b81e1f8d174a4c
--- /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 */