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author | Markus Klotzbuecher <mk@denx.de> | 2008-01-09 13:57:10 +0100 |
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committer | Markus Klotzbuecher <mk@denx.de> | 2008-01-09 13:57:10 +0100 |
commit | 6a40ef62c4300e9f606deef0a4618cbc4b514a51 (patch) | |
tree | c01bdd0e773d092f13af05567fa92fb9072df9e0 /include/asm-nios2/io.h | |
parent | 245a362ad3c0c1b84fccc9fec7b623eb14f6e502 (diff) | |
parent | 07eb02687f008721974a2fb54cd7fdc28033ab3c (diff) | |
download | u-boot-6a40ef62c4300e9f606deef0a4618cbc4b514a51.tar.gz u-boot-6a40ef62c4300e9f606deef0a4618cbc4b514a51.tar.xz u-boot-6a40ef62c4300e9f606deef0a4618cbc4b514a51.zip |
Merge git://www.denx.de/git/u-boot
Conflicts:
board/tqm5200/tqm5200.c
Diffstat (limited to 'include/asm-nios2/io.h')
-rw-r--r-- | include/asm-nios2/io.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/asm-nios2/io.h b/include/asm-nios2/io.h index 5bb5322952..a52b95cf23 100644 --- a/include/asm-nios2/io.h +++ b/include/asm-nios2/io.h @@ -29,10 +29,44 @@ static inline void sync(void) __asm__ __volatile__ ("sync" : : : "memory"); } +/* + * 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) +{ + +} + extern unsigned char inb (unsigned char *port); extern unsigned short inw (unsigned short *port); extern unsigned inl (unsigned port); +#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( "ldbio %0, 0(%1)" :"=r"(val) : "r" (addr)); val;}) |