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| author |   Cliff Cai <cliff.cai@analog.com> | 2008-05-17 16:36:52 +0800 |
|---|---|---|
| committer |   Bryan Wu <cooloney@kernel.org> | 2008-05-17 16:36:52 +0800 |
| commit | 86ad79321cbacdc4deebcde81849d19e26dd18e2 (patch) | |
| tree | 882410e4f212f064544697bf38242b943520f3a2 /include/asm-blackfin | |
| parent | Blackfin arch: cleanup the icplb/dcplb multiple hit checks (diff) | |
| download | linux-dev-86ad79321cbacdc4deebcde81849d19e26dd18e2.tar.xz linux-dev-86ad79321cbacdc4deebcde81849d19e26dd18e2.zip | |
Blackfin arch: enable a choice to provide 4M DMA memory
support two cascaded AD73322 cards, more uncached DMA
memory is needed, so add a choice to provide 4M DMA memory
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'include/asm-blackfin')
| -rw-r--r-- | include/asm-blackfin/bfin-global.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/asm-blackfin/bfin-global.h b/include/asm-blackfin/bfin-global.h index 716df7c85923..a9248d883675 100644 --- a/include/asm-blackfin/bfin-global.h +++ b/include/asm-blackfin/bfin-global.h @@ -37,7 +37,9 @@ #include <linux/linkage.h> #include <linux/types.h> -#if defined(CONFIG_DMA_UNCACHED_2M) +#if defined(CONFIG_DMA_UNCACHED_4M) +# define DMA_UNCACHED_REGION (4 * 1024 * 1024) +#elif defined(CONFIG_DMA_UNCACHED_2M) # define DMA_UNCACHED_REGION (2 * 1024 * 1024) #elif defined(CONFIG_DMA_UNCACHED_1M) # define DMA_UNCACHED_REGION (1024 * 1024) |