1 files changed, 48 insertions, 0 deletions

diff --git a/arch/blackfin/include/asm/byteorder.h b/arch/blackfin/include/asm/byteorder.h
new file mode 100644
index 000000000000..6a673d42da18
--- /dev/null
+++ b/arch/blackfin/include/asm/byteorder.h
@@ -0,0 +1,48 @@
+#ifndef _BLACKFIN_BYTEORDER_H
+#define _BLACKFIN_BYTEORDER_H
+
+#include <asm/types.h>
+#include <linux/compiler.h>
+
+#ifdef __GNUC__
+
+static __inline__ __attribute_const__ __u32 ___arch__swahb32(__u32 xx)
+{
+        __u32 tmp;
+        __asm__("%1 = %0 >> 8 (V);\n\t"
+                "%0 = %0 << 8 (V);\n\t"
+                "%0 = %0 | %1;\n\t"
+                : "+d"(xx), "=&d"(tmp));
+        return xx;
+}
+
+static __inline__ __attribute_const__ __u32 ___arch__swahw32(__u32 xx)
+{
+        __u32 rv;
+        __asm__("%0 = PACK(%1.L, %1.H);\n\t": "=d"(rv): "d"(xx));
+        return rv;
+}
+
+#define __arch__swahb32(x) ___arch__swahb32(x)
+#define __arch__swahw32(x) ___arch__swahw32(x)
+#define __arch__swab32(x) ___arch__swahb32(___arch__swahw32(x))
+
+static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 xx)
+{
+        __u32 xw = xx;
+        __asm__("%0 <<= 8;\n    %0.L = %0.L + %0.H (NS);\n": "+d"(xw));
+        return (__u16)xw;
+}
+
+#define __arch__swab16(x) ___arch__swab16(x)
+
+#endif
+
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+#  define __BYTEORDER_HAS_U64__
+#  define __SWAB_64_THRU_32__
+#endif
+
+#include <linux/byteorder/little_endian.h>
+
+#endif                          /* _BLACKFIN_BYTEORDER_H */