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authorTony Prisk <linux@prisktech.co.nz>2012-11-18 06:33:06 +0400
committerChris Ball <cjb@laptop.org>2012-12-06 22:54:50 +0400
commit3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 (patch)
tree09b8703228c83e6828e8d3d64bbce048b69e32a7 /Documentation
parent8d1e977da82ebd1defd44d085edc2c0140aecc2a (diff)
downloadlinux-3a96dff0f828ae9dfb43efd49a9b67a74c6dc360.tar.xz
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: Tony Prisk <linux@prisktech.co.nz> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/mmc/vt8500-sdmmc.txt23
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diff --git a/Documentation/devicetree/bindings/mmc/vt8500-sdmmc.txt b/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;
+};
+