mmc: dw_mmc: Add external dma interface support
DesignWare MMC Controller can supports two types of DMA
mode: external dma and internal dma. We get a RK312x platform
integrated dw_mmc and ARM pl330 dma controller. This patch add
edmac ops to support these platforms. I've tested it on RK31xx
platform with edmac mode and RK3288 platform with idmac mode.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 56f5b148..ef54084 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -615,15 +615,7 @@
help
This selects support for the Synopsys DesignWare Mobile Storage IP
block, this provides host support for SD and MMC interfaces, in both
- PIO and external DMA modes.
-
-config MMC_DW_IDMAC
- bool "Internal DMAC interface"
- depends on MMC_DW
- help
- This selects support for the internal DMAC block within the Synopsys
- Designware Mobile Storage IP block. This disables the external DMA
- interface.
+ PIO, internal DMA mode and external DMA mode.
config MMC_DW_PLTFM
tristate "Synopsys Designware MCI Support as platform device"
@@ -652,7 +644,6 @@
tristate "K3 specific extensions for Synopsys DW Memory Card Interface"
depends on MMC_DW
select MMC_DW_PLTFM
- select MMC_DW_IDMAC
help
This selects support for Hisilicon K3 SoC specific extensions to the
Synopsys DesignWare Memory Card Interface driver. Select this option