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author | Stefan Roese <sr@denx.de> | 2007-12-29 09:23:11 +0100 |
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committer | Stefan Roese <sr@denx.de> | 2007-12-29 09:23:11 +0100 |
commit | feaa43f3a8f465cbf01ffa1b23b6b52431819a52 (patch) | |
tree | 3ee393d421c72a882d27b1de5978a2a9befce062 /include/asm-m68k/io.h | |
parent | 8697e6a19b10f514511b6a9c86de88bd108c4f8d (diff) | |
parent | e174ac34adf5d5653df12bc3cf19c52063a71269 (diff) | |
download | talos-obmc-uboot-feaa43f3a8f465cbf01ffa1b23b6b52431819a52.tar.gz talos-obmc-uboot-feaa43f3a8f465cbf01ffa1b23b6b52431819a52.zip |
Merge branch 'for-1.3.2-ver2'
Conflicts:
cpu/ppc4xx/fdt.c
include/configs/kilauea.h
include/configs/sequoia.h
Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'include/asm-m68k/io.h')
-rw-r--r-- | include/asm-m68k/io.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/asm-m68k/io.h b/include/asm-m68k/io.h index e14a581dc1..91d759219d 100644 --- a/include/asm-m68k/io.h +++ b/include/asm-m68k/io.h @@ -28,6 +28,20 @@ #include <asm/byteorder.h> +/* ++roman: The assignments to temp. vars avoid that gcc sometimes generates + * two accesses to memory, which may be undesirable for some devices. + */ +#define __raw_readb(addr) \ + ({ u8 __v = (*(volatile u8 *) (addr)); __v; }) +#define __raw_readw(addr) \ + ({ u16 __v = (*(volatile u16 *) (addr)); __v; }) +#define __raw_readl(addr) \ + ({ u32 __v = (*(volatile u32 *) (addr)); __v; }) + +#define __raw_writeb(addr,b) (void)((*(volatile u8 *) (addr)) = (b)) +#define __raw_writew(addr,w) (void)((*(volatile u16 *) (addr)) = (w)) +#define __raw_writel(addr,l) (void)((*(volatile u32 *) (addr)) = (l)) + #define readb(addr) in_8((volatile u8 *)(addr)) #define writeb(b,addr) out_8((volatile u8 *)(addr), (b)) #if !defined(__BIG_ENDIAN) @@ -218,4 +232,31 @@ static inline void sync(void) * compatibility (CFI driver) */ } + +/* + * 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_M68K_IO_H__ */ |