diff options
| author | Scott Jiang <scott.jiang.linux@gmail.com> | 2012-05-18 20:27:22 (GMT) |
|---|---|---|
| committer | Bob Liu <lliubbo@gmail.com> | 2012-07-24 05:39:48 (GMT) |
| commit | c8d11a06bf8242d5d6ff86fa2514c4f50cb847fb (patch) | |
| tree | e397eaf4ee43581f3217464899c7ebd1fab26155 /arch/blackfin | |
| parent | 2cdd7008334854a1e9a0b7ceefdccbd3fdfe372a (diff) | |
| download | linux-c8d11a06bf8242d5d6ff86fa2514c4f50cb847fb.tar.xz | |
bfin: add 32M, 16M and 8M uncached DMA region options
We need larger DMA region to support HD video.
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
Diffstat (limited to 'arch/blackfin')
| -rw-r--r-- | arch/blackfin/Kconfig | 6 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/bfin-global.h | 8 |
2 files changed, 13 insertions, 1 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index fef96f4..2baa493 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -1009,6 +1009,12 @@ config HAVE_PWM choice prompt "Uncached DMA region" default DMA_UNCACHED_1M +config DMA_UNCACHED_32M + bool "Enable 32M DMA region" +config DMA_UNCACHED_16M + bool "Enable 16M DMA region" +config DMA_UNCACHED_8M + bool "Enable 8M DMA region" config DMA_UNCACHED_4M bool "Enable 4M DMA region" config DMA_UNCACHED_2M diff --git a/arch/blackfin/include/asm/bfin-global.h b/arch/blackfin/include/asm/bfin-global.h index 608be5e..dc47d79 100644 --- a/arch/blackfin/include/asm/bfin-global.h +++ b/arch/blackfin/include/asm/bfin-global.h @@ -14,7 +14,13 @@ #include <linux/linkage.h> #include <linux/types.h> -#if defined(CONFIG_DMA_UNCACHED_4M) +#if defined(CONFIG_DMA_UNCACHED_32M) +# define DMA_UNCACHED_REGION (32 * 1024 * 1024) +#elif defined(CONFIG_DMA_UNCACHED_16M) +# define DMA_UNCACHED_REGION (16 * 1024 * 1024) +#elif defined(CONFIG_DMA_UNCACHED_8M) +# define DMA_UNCACHED_REGION (8 * 1024 * 1024) +#elif 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) |