diff options
Diffstat (limited to 'packages/linux/linux-2.6.18/avr32-little-endian-read-write-bwl.patch')
-rw-r--r-- | packages/linux/linux-2.6.18/avr32-little-endian-read-write-bwl.patch | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/packages/linux/linux-2.6.18/avr32-little-endian-read-write-bwl.patch b/packages/linux/linux-2.6.18/avr32-little-endian-read-write-bwl.patch new file mode 100644 index 0000000000..5e9b75219a --- /dev/null +++ b/packages/linux/linux-2.6.18/avr32-little-endian-read-write-bwl.patch @@ -0,0 +1,128 @@ +--- + include/asm-avr32/io.h | 73 ++++++++++++++++++++++++++++++++----------------- + 1 file changed, 49 insertions(+), 24 deletions(-) + +Index: linux-2.6.18-avr32/include/asm-avr32/io.h +=================================================================== +--- linux-2.6.18-avr32.orig/include/asm-avr32/io.h 2006-11-02 16:40:37.000000000 +0100 ++++ linux-2.6.18-avr32/include/asm-avr32/io.h 2006-11-03 17:58:06.000000000 +0100 +@@ -5,6 +5,8 @@ + + #ifdef __KERNEL__ + ++#include <linux/types.h> ++ + #include <asm/addrspace.h> + #include <asm/byteorder.h> + +@@ -36,37 +38,64 @@ extern void __raw_readsb(unsigned int ad + extern void __raw_readsw(unsigned int addr, void *data, int wordlen); + extern void __raw_readsl(unsigned int addr, void *data, int longlen); + +-static inline void writeb(unsigned char b, volatile void __iomem *addr) ++static inline void __raw_writeb(u8 v, volatile void __iomem *addr) ++{ ++ *(volatile u8 __force *)addr = v; ++} ++static inline void __raw_writew(u16 v, volatile void __iomem *addr) ++{ ++ *(volatile u16 __force *)addr = v; ++} ++static inline void __raw_writel(u32 v, volatile void __iomem *addr) ++{ ++ *(volatile u32 __force *)addr = v; ++} ++ ++static inline u8 __raw_readb(const volatile void __iomem *addr) + { +- *(volatile unsigned char __force *)addr = b; ++ return *(const volatile u8 __force *)addr; + } +-static inline void writew(unsigned short b, volatile void __iomem *addr) ++static inline u16 __raw_readw(const volatile void __iomem *addr) + { +- *(volatile unsigned short __force *)addr = b; ++ return *(const volatile u16 __force *)addr; + } +-static inline void writel(unsigned int b, volatile void __iomem *addr) ++static inline u32 __raw_readl(const volatile void __iomem *addr) + { +- *(volatile unsigned int __force *)addr = b; ++ return *(const volatile u32 __force *)addr; + } +-#define __raw_writeb writeb +-#define __raw_writew writew +-#define __raw_writel writel + +-static inline unsigned char readb(const volatile void __iomem *addr) ++#define __swizzle_addr_b(addr) \ ++ ((typeof(addr))((unsigned long)(addr) ^ 3UL)) ++#define __swizzle_addr_w(addr) \ ++ ((typeof(addr))((unsigned long)(addr) ^ 2UL)) ++#define __swizzle_addr_l(addr) \ ++ (addr) ++ ++static inline void writeb(u8 v, volatile void __iomem *addr) + { +- return *(const volatile unsigned char __force *)addr; ++ __raw_writeb(v, __swizzle_addr_b(addr)); + } +-static inline unsigned short readw(const volatile void __iomem *addr) ++static inline void writew(u16 v, volatile void __iomem *addr) + { +- return *(const volatile unsigned short __force *)addr; ++ __raw_writew(v, __swizzle_addr_w(addr)); + } +-static inline unsigned int readl(const volatile void __iomem *addr) ++static inline void writel(u32 v, volatile void __iomem *addr) + { +- return *(const volatile unsigned int __force *)addr; ++ __raw_writel(v, __swizzle_addr_l(addr)); ++} ++ ++static inline u8 readb(const volatile void __iomem *addr) ++{ ++ return __raw_readb(__swizzle_addr_b(addr)); ++} ++static inline u16 readw(const volatile void __iomem *addr) ++{ ++ return __raw_readw(__swizzle_addr_w(addr)); ++} ++static inline u32 readl(const volatile void __iomem *addr) ++{ ++ return __raw_readl(__swizzle_addr_l(addr)); + } +-#define __raw_readb readb +-#define __raw_readw readw +-#define __raw_readl readl + + #define writesb(p, d, l) __raw_writesb((unsigned int)p, d, l) + #define writesw(p, d, l) __raw_writesw((unsigned int)p, d, l) +@@ -108,17 +137,13 @@ static inline unsigned int readl(const v + + #endif + +- +-/* +- * These two are only here because ALSA _thinks_ it needs them... +- */ + static inline void memcpy_fromio(void * to, const volatile void __iomem *from, + unsigned long count) + { + char *p = to; + while (count) { + count--; +- *p = readb(from); ++ *p = __raw_readb(from); + p++; + from++; + } +@@ -130,7 +155,7 @@ static inline void memcpy_toio(volatile + const char *p = from; + while (count) { + count--; +- writeb(*p, to); ++ __raw_writeb(*p, to); + p++; + to++; + } |