diff options
| author | Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> | 2009-09-07 07:26:23 +0400 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-09-09 04:56:02 +0400 |
| commit | d8902adcc1a9fd484c8cb5e575152e32192c1ff8 (patch) | |
| tree | 305109ce60db5ea9710dddce9db8a23f65ff4572 /arch | |
| parent | 9134d02bc0af4a8747d448d1f811ec5f8eb96df6 (diff) | |
| download | linux-d8902adcc1a9fd484c8cb5e575152e32192c1ff8.tar.xz | |
dmaengine: sh: Add Support SuperH DMA Engine driver
This supported all DMA channels, and it was tested in SH7722,
SH7780, SH7785 and SH7763.
This can not use with SH DMA API.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Reviewed-by: Matt Fleming <matt@console-pimps.org>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sh/drivers/dma/Kconfig | 12 | ||||
| -rw-r--r-- | arch/sh/drivers/dma/Makefile | 3 | ||||
| -rw-r--r-- | arch/sh/include/asm/dma-sh.h | 13 |
3 files changed, 23 insertions, 5 deletions
diff --git a/arch/sh/drivers/dma/Kconfig b/arch/sh/drivers/dma/Kconfig index 63e9dd30b41c..f935a7e5cbe5 100644 --- a/arch/sh/drivers/dma/Kconfig +++ b/arch/sh/drivers/dma/Kconfig @@ -1,12 +1,9 @@ menu "DMA support" -config SH_DMA_API - bool config SH_DMA bool "SuperH on-chip DMA controller (DMAC) support" depends on CPU_SH3 || CPU_SH4 - select SH_DMA_API default n config SH_DMA_IRQ_MULTI @@ -19,6 +16,15 @@ config SH_DMA_IRQ_MULTI CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \ CPU_SUBTYPE_SH7760 +config SH_DMA_API + depends on SH_DMA + bool "SuperH DMA API support" + default n + help + SH_DMA_API always enabled DMA API of used SuperH. + If you want to use DMA ENGINE, you must not enable this. + Please enable DMA_ENGINE and SH_DMAE. + config NR_ONCHIP_DMA_CHANNELS int depends on SH_DMA diff --git a/arch/sh/drivers/dma/Makefile b/arch/sh/drivers/dma/Makefile index c6068137b46f..d88c9484762c 100644 --- a/arch/sh/drivers/dma/Makefile +++ b/arch/sh/drivers/dma/Makefile @@ -2,8 +2,7 @@ # Makefile for the SuperH DMA specific kernel interface routines under Linux. # -obj-$(CONFIG_SH_DMA_API) += dma-api.o dma-sysfs.o -obj-$(CONFIG_SH_DMA) += dma-sh.o +obj-$(CONFIG_SH_DMA_API) += dma-sh.o dma-api.o dma-sysfs.o obj-$(CONFIG_PVR2_DMA) += dma-pvr2.o obj-$(CONFIG_G2_DMA) += dma-g2.o obj-$(CONFIG_SH_DMABRG) += dmabrg.o diff --git a/arch/sh/include/asm/dma-sh.h b/arch/sh/include/asm/dma-sh.h index 0c8f8e14622a..89bdac558dbc 100644 --- a/arch/sh/include/asm/dma-sh.h +++ b/arch/sh/include/asm/dma-sh.h @@ -115,4 +115,17 @@ static u32 dma_base_addr[] __maybe_unused = { #define CHCR 0x0C #define DMAOR 0x40 +/* + * for dma engine + * + * SuperH DMA mode + */ +#define SHDMA_MIX_IRQ (1 << 1) +#define SHDMA_DMAOR1 (1 << 2) +#define SHDMA_DMAE1 (1 << 3) + +struct sh_dmae_pdata { + unsigned int mode; +}; + #endif /* __DMA_SH_H */ |