From d8902adcc1a9fd484c8cb5e575152e32192c1ff8 Mon Sep 17 00:00:00 2001 From: Nobuhiro Iwamatsu Date: Mon, 7 Sep 2009 03:26:23 +0000 Subject: 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 Reviewed-by: Matt Fleming Acked-by: Maciej Sosnowski Acked-by: Paul Mundt Signed-off-by: Dan Williams --- arch/sh/drivers/dma/Kconfig | 12 +++++++++--- arch/sh/drivers/dma/Makefile | 3 +-- arch/sh/include/asm/dma-sh.h | 13 +++++++++++++ 3 files changed, 23 insertions(+), 5 deletions(-) (limited to 'arch/sh') diff --git a/arch/sh/drivers/dma/Kconfig b/arch/sh/drivers/dma/Kconfig index 63e9dd30b41..f935a7e5cbe 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 c6068137b46..d88c9484762 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 0c8f8e14622..89bdac558db 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 */ -- cgit v1.2.3