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