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author | Jon Loeliger <jdl@freescale.com> | 2008-01-03 15:46:55 (GMT) |
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committer | Jon Loeliger <jdl@freescale.com> | 2008-01-03 15:46:55 (GMT) |
commit | 2c3536425d987bf079258973e2acebaaef3e16b6 (patch) | |
tree | 659d06dd33eca4888e1f6d01d046507b76dc2d27 /include/asm-nios/io.h | |
parent | f743931f9b4d4e15c9bdfe726bef033ea1f1402c (diff) | |
parent | ce37422d0002e10490e268392e0c4e3028e52cec (diff) | |
download | u-boot-2c3536425d987bf079258973e2acebaaef3e16b6.tar.xz |
Merge commit 'wd/master'
Diffstat (limited to 'include/asm-nios/io.h')
-rw-r--r-- | include/asm-nios/io.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/asm-nios/io.h b/include/asm-nios/io.h index d77695a..6fc339f 100644 --- a/include/asm-nios/io.h +++ b/include/asm-nios/io.h @@ -23,6 +23,14 @@ #ifndef __ASM_NIOS_IO_H_ #define __ASM_NIOS_IO_H_ +#define __raw_writeb(v,a) (*(volatile unsigned char *)(a) = (v)) +#define __raw_writew(v,a) (*(volatile unsigned short *)(a) = (v)) +#define __raw_writel(v,a) (*(volatile unsigned int *)(a) = (v)) + +#define __raw_readb(a) (*(volatile unsigned char *)(a)) +#define __raw_readw(a) (*(volatile unsigned short *)(a)) +#define __raw_readl(a) (*(volatile unsigned int *)(a)) + #define readb(addr)\ ({unsigned char val;\ asm volatile( " pfxio 0 \n"\ @@ -101,4 +109,30 @@ static inline void sync(void) { } +/* + * Given a physical address and a length, return a virtual address + * that can be used to access the memory range with the caching + * properties specified by "flags". + */ +typedef unsigned long phys_addr_t; + +#define MAP_NOCACHE (0) +#define MAP_WRCOMBINE (0) +#define MAP_WRBACK (0) +#define MAP_WRTHROUGH (0) + +static inline void * +map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags) +{ + return (void *)paddr; +} + +/* + * Take down a mapping set up by map_physmem(). + */ +static inline void unmap_physmem(void *vaddr, unsigned long flags) +{ + +} + #endif /* __ASM_NIOS_IO_H_ */ |