[MIPS] asm headers' updates

[u-boot] / include / asm-mips / byteorder.h

diff --git a/include/asm-mips/byteorder.h b/include/asm-mips/byteorder.h
index b9604cf202aabe1268bd1119697404b9528f2d60..b5e685feb62a593b6113868e3331819711836adc 100644 (file)
--- a/include/asm-mips/byteorder.h
+++ b/include/asm-mips/byteorder.h
@@ -1,18 +1,62 @@
-/* $Id: byteorder.h,v 1.8 1998/11/02 09:29:32 ralf Exp $
- *
+/*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) by Ralf Baechle
+ * Copyright (C) 1996, 99, 2003 by Ralf Baechle
  */
-#ifndef _MIPS_BYTEORDER_H
-#define _MIPS_BYTEORDER_H
+#ifndef _ASM_BYTEORDER_H
+#define _ASM_BYTEORDER_H
 
 #include <asm/types.h>
 
 #ifdef __GNUC__
 
+#ifdef CONFIG_CPU_MIPSR2
+
+static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
+{
+       __asm__(
+       "       wsbh    %0, %1                  \n"
+       : "=r" (x)
+       : "r" (x));
+
+       return x;
+}
+#define __arch__swab16(x)      ___arch__swab16(x)
+
+static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
+{
+       __asm__(
+       "       wsbh    %0, %1                  \n"
+       "       rotr    %0, %0, 16              \n"
+       : "=r" (x)
+       : "r" (x));
+
+       return x;
+}
+#define __arch__swab32(x)      ___arch__swab32(x)
+
+#ifdef CONFIG_CPU_MIPS64_R2
+
+static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
+{
+       __asm__(
+       "       dsbh    %0, %1                  \n"
+       "       dshd    %0, %0                  \n"
+       "       drotr   %0, %0, 32              \n"
+       : "=r" (x)
+       : "r" (x));
+
+       return x;
+}
+
+#define __arch__swab64(x)      ___arch__swab64(x)
+
+#endif /* CONFIG_CPU_MIPS64_R2 */
+
+#endif /* CONFIG_CPU_MIPSR2 */
+
 #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
 #  define __BYTEORDER_HAS_U64__
 #  define __SWAB_64_THRU_32__
@@ -20,12 +64,12 @@
 
 #endif /* __GNUC__ */
 
-#if defined (__MIPSEB__)
+#if defined(__MIPSEB__)
 #  include <linux/byteorder/big_endian.h>
-#elif defined (__MIPSEL__)
+#elif defined(__MIPSEL__)
 #  include <linux/byteorder/little_endian.h>
 #else
 #  error "MIPS, but neither __MIPSEB__, nor __MIPSEL__???"
 #endif
 
-#endif /* _MIPS_BYTEORDER_H */
+#endif /* _ASM_BYTEORDER_H */