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openwrt-xburst/target/linux/adm5120-2.6/patches-2.6.22/008-adm5120_hardware_swab.patch
juhosg 1548f9815d [adm5120] move 2.6.22 specific patches into the right place
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7797 3c298f89-4303-0410-b956-a3cf2f4a3e73
2007-06-30 15:03:56 +00:00

41 lines
1.0 KiB
Diff

Index: linux-2.6.22-rc6/include/asm-mips/byteorder.h
===================================================================
--- linux-2.6.22-rc6.orig/include/asm-mips/byteorder.h
+++ linux-2.6.22-rc6/include/asm-mips/byteorder.h
@@ -58,6 +58,35 @@ static __inline__ __attribute_const__ __
#endif /* CONFIG_CPU_MIPSR2 */
+#ifdef CONFIG_ADM5120_HARDWARE_SWAB
+
+static __inline__ __attribute_const__ __u16 ___adm5120__swab16(__u16 x)
+{
+ __asm__ (
+ " sh %2, 0xCA(%1) \n"
+ " lhu %0, 0xCC(%1) \n"
+ : "=r" (x)
+ : "r" (0xB2000000), "r" (x));
+
+ return x;
+}
+
+static __inline__ __attribute_const__ __u32 ___adm5120__swab32(__u32 x)
+{
+ __asm__ (
+ " sw %2, 0xC8(%1) \n"
+ " lw %0, 0xCC(%1) \n"
+ : "=r" (x)
+ : "r" (0xB2000000), "r" (x));
+
+ return x;
+}
+
+#define __arch__swab16(x) ___adm5120__swab16(x)
+#define __arch__swab32(x) ___adm5120__swab32(x)
+
+#endif /* CONFIG_ADM5120_HARDWARE_SWAB */
+
#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
# define __BYTEORDER_HAS_U64__
# define __SWAB_64_THRU_32__