diff options
| author | Philippe De Muyter <phdm@macqel.be> | 2010-10-27 14:57:48 +0200 |
|---|---|---|
| committer | Greg Ungerer <gerg@uclinux.org> | 2011-01-05 15:19:17 +1000 |
| commit | b3d75b09bf8998fd302ba339eebbc768a110741b (patch) | |
| tree | c3273077768dcab76056c4e971f92dff5b5e72ae /arch/m68k/include/asm/m54xxacr.h | |
| parent | 5291fa98565a2f4d27ec59380e8497eba2af948d (diff) | |
m68knommu: Move __flush_cache_all definition for m54xx in m54xxacr.h
__flush_cache_all for m54xx is intrinsically related to the bit
definitions in m54xxacr.h. Move it there from cacheflush_no.h,
for easier maintenance.
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68k/include/asm/m54xxacr.h')
| -rw-r--r-- | arch/m68k/include/asm/m54xxacr.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/m54xxacr.h b/arch/m68k/include/asm/m54xxacr.h index 424d4a677e4..da713d22dd0 100644 --- a/arch/m68k/include/asm/m54xxacr.h +++ b/arch/m68k/include/asm/m54xxacr.h @@ -40,4 +40,35 @@ #define ACR_CM 0x00000060 /* Cache mode mask */ #define ACR_WPROTECT 0x00000004 /* Write protect */ +#ifndef __ASSEMBLY__ + +static inline void __m54xx_flush_cache_all(void) +{ + /* + * Use cpushl to push and invalidate all cache lines. + * Gas doesn't seem to know how to generate the ColdFire + * cpushl instruction... Oh well, bit stuff it for now. + */ + __asm__ __volatile__ ( + "nop\n\t" + "clrl %%d0\n\t" + "1:\n\t" + "movel %%d0,%%a0\n\t" + "2:\n\t" + ".word 0xf468\n\t" + "addl #0x10,%%a0\n\t" + "cmpl #0x00000800,%%a0\n\t" + "blt 2b\n\t" + "addql #1,%%d0\n\t" + "cmpil #4,%%d0\n\t" + "bne 1b\n\t" + "movel #0xb6088500,%%d0\n\t" + "movec %%d0,%%CACR\n\t" + : : : "d0", "a0" ); +} + +#define __flush_cache_all() __m54xx_flush_cache_all() + +#endif /* __ASSEMBLY__ */ + #endif /* m54xxacr_h */ |