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| author | Anton Staaf <robotboy@chromium.org> | 2011-10-17 16:46:06 -0700 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-10-23 20:50:42 +0200 |
| commit | 0991701a27e7f1de983ff2250dbdb88a7c8c60ec (patch) | |
| tree | 5f8c01502bc1e73e248f2393ca29cbec83429324 /arch/powerpc/include/asm/cache.h | |
| parent | 6fa6035ff2ac62258736ee9365c4b3135a68f4c3 (diff) | |
| download | blackbird-obmc-uboot-0991701a27e7f1de983ff2250dbdb88a7c8c60ec.tar.gz blackbird-obmc-uboot-0991701a27e7f1de983ff2250dbdb88a7c8c60ec.zip | |
powerpc: cache: define ARCH_DMA_MINALIGN for DMA buffer alignment
Signed-off-by: Anton Staaf <robotboy@chromium.org>
Acked-by: Stefan Roese <sr@denx.de>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Stefan Roese <sr@denx.de>
Diffstat (limited to 'arch/powerpc/include/asm/cache.h')
| -rw-r--r-- | arch/powerpc/include/asm/cache.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h index 53e8d05f50..e6b8f69b76 100644 --- a/arch/powerpc/include/asm/cache.h +++ b/arch/powerpc/include/asm/cache.h @@ -21,6 +21,12 @@ #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) /* + * Use the L1 data cache line size value for the minimum DMA buffer alignment + * on PowerPC. + */ +#define ARCH_DMA_MINALIGN L1_CACHE_BYTES + +/* * For compatibility reasons support the CONFIG_SYS_CACHELINE_SIZE too */ #ifndef CONFIG_SYS_CACHELINE_SIZE |
