linux/Documentation/devicetree/bindings/mmc/davinci_mmc.txt
<<
>>
Prefs
   1* TI Highspeed MMC host controller for DaVinci
   2
   3The Highspeed MMC Host Controller on TI DaVinci family
   4provides an interface for MMC, SD and SDIO types of memory cards.
   5
   6This file documents the properties used by the davinci_mmc driver.
   7
   8Required properties:
   9- compatible:
  10 Should be "ti,da830-mmc": for da830, da850, dm365
  11 Should be "ti,dm355-mmc": for dm355, dm644x
  12
  13Optional properties:
  14- bus-width: Number of data lines, can be <1>, <4>, or <8>, default <1>
  15- max-frequency: Maximum operating clock frequency, default 25MHz.
  16- dmas: List of DMA specifiers with the controller specific format
  17        as described in the generic DMA client binding. A tx and rx
  18        specifier is required.
  19- dma-names: RX and TX  DMA request names. These strings correspond
  20        1:1 with the DMA specifiers listed in dmas.
  21
  22Example:
  23mmc0: mmc@1c40000 {
  24        compatible = "ti,da830-mmc",
  25        reg = <0x40000 0x1000>;
  26        interrupts = <16>;
  27        status = "okay";
  28        bus-width = <4>;
  29        max-frequency = <50000000>;
  30        dmas = <&edma 16
  31                &edma 17>;
  32        dma-names = "rx", "tx";
  33};
  34