7f217794ff
This patch unifies the current DT MMC bindings documentation and code, adds generic MMC DT bindings documentation, and updates .dts files for consistency. [cjb: typo fixes, addition of max-frequency property] Signed-off-by: Chris Ball <cjb@laptop.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
35 lines
1.0 KiB
Plaintext
35 lines
1.0 KiB
Plaintext
* Freescale Enhanced Secure Digital Host Controller (eSDHC) for i.MX
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The Enhanced Secure Digital Host Controller on Freescale i.MX family
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provides an interface for MMC, SD, and SDIO types of memory cards.
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Required properties:
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- compatible : Should be "fsl,<chip>-esdhc"
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- reg : Should contain eSDHC registers location and length
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- interrupts : Should contain eSDHC interrupt
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Optional properties:
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- non-removable : Indicate the card is wired to host permanently
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- fsl,cd-internal : Indicate to use controller internal card detection
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- fsl,wp-internal : Indicate to use controller internal write protection
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- cd-gpios : Specify GPIOs for card detection
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- wp-gpios : Specify GPIOs for write protection
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Examples:
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esdhc@70004000 {
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compatible = "fsl,imx51-esdhc";
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reg = <0x70004000 0x4000>;
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interrupts = <1>;
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fsl,cd-internal;
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fsl,wp-internal;
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};
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esdhc@70008000 {
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compatible = "fsl,imx51-esdhc";
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reg = <0x70008000 0x4000>;
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interrupts = <2>;
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cd-gpios = <&gpio0 6 0>; /* GPIO1_6 */
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wp-gpios = <&gpio0 5 0>; /* GPIO1_5 */
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};
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