diff options
| author | Shawn Guo <shawn.guo@linaro.org> | 2011-06-30 15:44:44 +0800 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2011-07-27 09:31:39 +0800 |
| commit | abfafc2d10ee2ad217be9ef06181819ca5dd6960 (patch) | |
| tree | 7d05feaadbdebb8997c3ce292f899bc7bc15be6a /Documentation | |
| parent | a4d2177f00a5252d825236c5124bc1e9918bdb41 (diff) | |
mmc: sdhci-esdhc-imx: add device tree probe support
The patch adds device tree probe support for sdhci-esdhc-imx driver.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Cc: Chris Ball <cjb@laptop.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt new file mode 100644 index 00000000000..ab22fe6e73a --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt @@ -0,0 +1,34 @@ +* Freescale Enhanced Secure Digital Host Controller (eSDHC) for i.MX + +The Enhanced Secure Digital Host Controller on Freescale i.MX family +provides an interface for MMC, SD, and SDIO types of memory cards. + +Required properties: +- compatible : Should be "fsl,<chip>-esdhc" +- reg : Should contain eSDHC registers location and length +- interrupts : Should contain eSDHC interrupt + +Optional properties: +- fsl,card-wired : Indicate the card is wired to host permanently +- fsl,cd-internal : Indicate to use controller internal card detection +- fsl,wp-internal : Indicate to use controller internal write protection +- cd-gpios : Specify GPIOs for card detection +- wp-gpios : Specify GPIOs for write protection + +Examples: + +esdhc@70004000 { + compatible = "fsl,imx51-esdhc"; + reg = <0x70004000 0x4000>; + interrupts = <1>; + fsl,cd-internal; + fsl,wp-internal; +}; + +esdhc@70008000 { + compatible = "fsl,imx51-esdhc"; + reg = <0x70008000 0x4000>; + interrupts = <2>; + cd-gpios = <&gpio0 6 0>; /* GPIO1_6 */ + wp-gpios = <&gpio0 5 0>; /* GPIO1_5 */ +}; |