doc/device-tree-bindings/mmc/msm_sdhci.txt

   1 Qualcomm Snapdragon SDHCI controller
   2
   3 Required properties:
   4 - compatible : "qcom,sdhci-msm-v4"
   5 - reg: Base address and length of registers:
   6         - Host controller registers (SDHCI)
   7         - SD Core registers
   8 - clock: interface clock (must accept SD bus clock as a frequency)
   9
  10 Optional properties:
  11 - index: If there is more than one controller - controller index (required
  12         by generic SDHCI code).
  13 - bus_width: Width of SD/eMMC bus (default 4)
  14 - clock-frequency: Frequency of SD/eMMC bus (default 400 kHz)
  15
  16 Example:
  17
  18 sdhci@07864000 {
  19         compatible = "qcom,sdhci-msm-v4";
  20         reg = <0x7864900 0x11c 0x7864000 0x800>;
  21         index = <0x1>;
  22         bus-width = <0x4>;
  23         clock = <&clkc 1>;
  24         clock-frequency = <200000000>;
  25 };