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Commit 3a96dff0 authored by Tony Prisk's avatar Tony Prisk Committed by Chris Ball
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mmc: SD/MMC Host Controller for Wondermedia WM8505/WM8650 



This patch adds support for the SD/MMC host controller found
on Wondermedia 8xxx series SoCs, currently supported under
arm/arch-vt8500.

A binding document is also included, based on mmc.txt with
additional properties.

Signed-off-by: default avatarTony Prisk <linux@prisktech.co.nz>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent 8d1e977d

Documentation/devicetree/bindings/mmc/vt8500-sdmmc.txt

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* Wondermedia WM8505/WM8650 SD/MMC Host Controller



This file documents differences between the core properties described

by mmc.txt and the properties used by the wmt-sdmmc driver.



Required properties:

- compatible: Should be "wm,wm8505-sdhc".

- interrupts: Two interrupts are required - regular irq and dma irq.



Optional properties:

- sdon-inverted: SD_ON bit is inverted on the controller



Examples:



sdhc@d800a000 {

	compatible = "wm,wm8505-sdhc";

	reg = <0xd800a000 0x1000>;

	interrupts = <20 21>;

	clocks = <&sdhc>;

	bus-width = <4>;

	sdon-inverted;

};

MAINTAINERS

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@@ -1221,6 +1221,7 @@ F: drivers/video/wm8505fb* 
F:	drivers/video/wmt_ge_rops.*

F:	drivers/tty/serial/vt8500_serial.c

F:	drivers/rtc/rtc-vt8500-c

F:	drivers/mmc/host/wmt-sdmmc.c



ARM/ZIPIT Z2 SUPPORT

M:	Marek Vasut <marek.vasut@gmail.com>

drivers/mmc/host/Kconfig

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@@ -601,3 +601,14 @@ config MMC_USHC 


	  Note: These controllers only support SDIO cards and do not

	  support MMC or SD memory cards.



config MMC_WMT

	tristate "Wondermedia SD/MMC Host Controller support"

	depends on ARCH_VT8500

	default y

	help

	  This selects support for the SD/MMC Host Controller on

	  Wondermedia WM8505/WM8650 based SoCs.



	  To compile this driver as a module, choose M here: the

	  module will be called wmt-sdmmc.

drivers/mmc/host/Makefile

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@@ -44,6 +44,7 @@ obj-$(CONFIG_MMC_SH_MMCIF) += sh_mmcif.o 
obj-$(CONFIG_MMC_JZ4740)	+= jz4740_mmc.o

obj-$(CONFIG_MMC_VUB300)	+= vub300.o

obj-$(CONFIG_MMC_USHC)		+= ushc.o

obj-$(CONFIG_MMC_WMT)		+= wmt-sdmmc.o



obj-$(CONFIG_MMC_SDHCI_PLTFM)		+= sdhci-pltfm.o

obj-$(CONFIG_MMC_SDHCI_CNS3XXX)		+= sdhci-cns3xxx.o