34 lines
1.1 KiB
Plaintext
34 lines
1.1 KiB
Plaintext
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* TI Highspeed MMC host controller for OMAP
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The Highspeed MMC Host Controller on TI OMAP 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:
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Should be "ti,omap2-hsmmc", for OMAP2 controllers
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Should be "ti,omap3-hsmmc", for OMAP3 controllers
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Should be "ti,omap4-hsmmc", for OMAP4 controllers
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- ti,hwmods: Must be "mmc<n>", n is controller instance starting 1
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- reg : should contain hsmmc registers location and length
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Optional properties:
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ti,dual-volt: boolean, supports dual voltage cards
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<supply-name>-supply: phandle to the regulator device tree node
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"supply-name" examples are "vmmc", "vmmc_aux" etc
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ti,bus-width: Number of data lines, default assumed is 1 if the property is missing.
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cd-gpios: GPIOs for card detection
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wp-gpios: GPIOs for write protection
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ti,non-removable: non-removable slot (like eMMC)
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ti,needs-special-reset: Requires a special softreset sequence
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Example:
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mmc1: mmc@0x4809c000 {
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compatible = "ti,omap4-hsmmc";
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reg = <0x4809c000 0x400>;
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ti,hwmods = "mmc1";
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ti,dual-volt;
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ti,bus-width = <4>;
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vmmc-supply = <&vmmc>; /* phandle to regulator node */
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ti,non-removable;
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};
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