mmc: dw_mmc: Add external dma interface support

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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>

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Shawn Lin 2015-09-16 14:41:23 +08:00 • committed by Ulf Hansson

parent 9e4703df3a

commit 3fc7eaef44

5 changed files with 246 additions and 64 deletions

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11

drivers/mmc/host/Kconfig

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2

drivers/mmc/host/dw_mmc-pltfm.c

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266

drivers/mmc/host/dw_mmc.c

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6

drivers/mmc/host/dw_mmc.h

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