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Commit 75fa9ea6 authored by Guennadi Liakhovetski's avatar Guennadi Liakhovetski Committed by Chris Ball
Browse files

mmc: add a driver for the Renesas usdhi6rol0 SD/SDIO host controller 



This patch adds a driver for the Renesas usdhi6rol0 SD/SDIO host controller
in both PIO and DMA modes.

Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: default avatarChris Ball <chris@printf.net>
parent 06732b84

Documentation/devicetree/bindings/mmc/usdhi6rol0.txt

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* Renesas usdhi6rol0 SD/SDIO host controller



Required properties:



- compatible:	must be

		"renesas,usdhi6rol0"

- interrupts:	3 interrupts, named "card detect", "data" and "SDIO" must be

		specified

- clocks:	a clock binding for the IMCLK input



Optional properties:



- vmmc-supply:	a phandle of a regulator, supplying Vcc to the card

- vqmmc-supply:	a phandle of a regulator, supplying VccQ to the card



Additionally any standard mmc bindings from mmc.txt can be used.



Example:



sd0: sd@ab000000 {

	compatible = "renesas,usdhi6rol0";

	reg = <0xab000000 0x200>;

	interrupts = <0 23 0x4

		      0 24 0x4

		      0 25 0x4>;

	interrupt-names = "card detect", "data", "SDIO";

	bus-width = <4>;

	max-frequency = <50000000>;

	cap-power-off-card;

	clocks = <&imclk>;

	vmmc-supply = <&vcc_sd0>;

	vqmmc-supply = <&vccq_sd0>;

};

drivers/mmc/host/Kconfig

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@@ -697,6 +697,12 @@ config MMC_WMT 
	  To compile this driver as a module, choose M here: the

	  module will be called wmt-sdmmc.



config MMC_USDHI6ROL0

	tristate "Renesas USDHI6ROL0 SD/SDIO Host Controller support"

	help

	  This selects support for the Renesas USDHI6ROL0 SD/SDIO

	  Host Controller



config MMC_REALTEK_PCI

	tristate "Realtek PCI-E SD/MMC Card Interface Driver"

	depends on MFD_RTSX_PCI

drivers/mmc/host/Makefile

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@@ -52,6 +52,7 @@ obj-$(CONFIG_MMC_USHC) += ushc.o 
obj-$(CONFIG_MMC_WMT)		+= wmt-sdmmc.o

obj-$(CONFIG_MMC_MOXART)	+= moxart-mmc.o

obj-$(CONFIG_MMC_SUNXI)		+= sunxi-mmc.o

obj-$(CONFIG_MMC_USDHI6ROL0)	+= usdhi6rol0.o



obj-$(CONFIG_MMC_REALTEK_PCI)	+= rtsx_pci_sdmmc.o

obj-$(CONFIG_MMC_REALTEK_USB)	+= rtsx_usb_sdmmc.o

drivers/mmc/host/usdhi6rol0.c

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File added.

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