Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt

   1 * Freescale Enhanced Secure Digital Host Controller (eSDHC) for i.MX
   2
   3 The Enhanced Secure Digital Host Controller on Freescale i.MX family
   4 provides an interface for MMC, SD, and SDIO types of memory cards.
   5
   6 Required properties:
   7 - compatible : Should be "fsl,<chip>-esdhc"
   8 - reg : Should contain eSDHC registers location and length
   9 - interrupts : Should contain eSDHC interrupt
  10
  11 Optional properties:
  12 - non-removable : Indicate the card is wired to host permanently
  13 - fsl,cd-internal : Indicate to use controller internal card detection
  14 - fsl,wp-internal : Indicate to use controller internal write protection
  15 - cd-gpios : Specify GPIOs for card detection
  16 - wp-gpios : Specify GPIOs for write protection
  17
  18 Examples:
  19
  20 esdhc@70004000 {
  21         compatible = "fsl,imx51-esdhc";
  22         reg = <0x70004000 0x4000>;
  23         interrupts = <1>;
  24         fsl,cd-internal;
  25         fsl,wp-internal;
  26 };
  27
  28 esdhc@70008000 {
  29         compatible = "fsl,imx51-esdhc";
  30         reg = <0x70008000 0x4000>;
  31         interrupts = <2>;
  32         cd-gpios = <&gpio1 6 0>; /* GPIO1_6 */
  33         wp-gpios = <&gpio1 5 0>; /* GPIO1_5 */
  34 };