linux/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
<<
>>
Prefs
   1* TI Highspeed MMC host controller for OMAP
   2
   3The Highspeed MMC Host Controller on TI OMAP family
   4provides an interface for MMC, SD, and SDIO types of memory cards.
   5
   6This file documents differences between the core properties described
   7by mmc.txt and the properties used by the omap_hsmmc driver.
   8
   9Required properties:
  10- compatible:
  11 Should be "ti,omap2-hsmmc", for OMAP2 controllers
  12 Should be "ti,omap3-hsmmc", for OMAP3 controllers
  13 Should be "ti,omap4-hsmmc", for OMAP4 controllers
  14- ti,hwmods: Must be "mmc<n>", n is controller instance starting 1
  15
  16Optional properties:
  17ti,dual-volt: boolean, supports dual voltage cards
  18<supply-name>-supply: phandle to the regulator device tree node
  19"supply-name" examples are "vmmc", "vmmc_aux" etc
  20ti,non-removable: non-removable slot (like eMMC)
  21ti,needs-special-reset: Requires a special softreset sequence
  22ti,needs-special-hs-handling: HSMMC IP needs special setting for handling High Speed
  23
  24Example:
  25        mmc1: mmc@0x4809c000 {
  26                compatible = "ti,omap4-hsmmc";
  27                reg = <0x4809c000 0x400>;
  28                ti,hwmods = "mmc1";
  29                ti,dual-volt;
  30                bus-width = <4>;
  31                vmmc-supply = <&vmmc>; /* phandle to regulator node */
  32                ti,non-removable;
  33        };
  34