commit: http://blackfin.uclinux.org/git/?p=linux-kernel;a=commitdiff;h=df1f475fe2762a101dfe2d31905675d975bfbccd branch: http://blackfin.uclinux.org/git/?p=linux-kernel;a=shortlog;h=refs/heads/trunk
We need larger DMA region to support HD video. Signed-off-by: Scott Jiang <[email protected]> --- arch/blackfin/Kconfig | 6 ++++++ 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 5a85fcb..2f435e6 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -1019,6 +1019,12 @@ 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)
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