diff --git a/arch/sparc/include/asm/byteorder.h b/arch/sparc/include/asm/byteorder.h
index b9fc65663f..e3b3dec91d 100644
--- a/arch/sparc/include/asm/byteorder.h
+++ b/arch/sparc/include/asm/byteorder.h
@@ -32,6 +32,7 @@
 
 #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
 #define __BYTEORDER_HAS_U64__
+#define __SWAB_64_THRU_32__
 #endif
 #include <linux/byteorder/big_endian.h>
 #endif				/* _SPARC_BYTEORDER_H */
diff --git a/arch/sparc/include/asm/unaligned.h b/arch/sparc/include/asm/unaligned.h
new file mode 100644
index 0000000000..0e646f7fa9
--- /dev/null
+++ b/arch/sparc/include/asm/unaligned.h
@@ -0,0 +1,10 @@
+#ifndef _ASM_SPARC_UNALIGNED_H
+#define _ASM_SPARC_UNALIGNED_H
+
+/*
+ * The SPARC can not do unaligned accesses, it must be split into multiple
+ * byte accesses. The SPARC is in big endian mode.
+ */
+#include <asm-generic/unaligned.h>
+
+#endif	/* _ASM_SPARC_UNALIGNED_H */