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Diffstat (limited to 'doc/device-tree-bindings')
-rw-r--r-- | doc/device-tree-bindings/mmc/msm_sdhci.txt | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/mmc/msm_sdhci.txt b/doc/device-tree-bindings/mmc/msm_sdhci.txt new file mode 100644 index 0000000..08a290c --- /dev/null +++ b/doc/device-tree-bindings/mmc/msm_sdhci.txt @@ -0,0 +1,25 @@ +Qualcomm Snapdragon SDHCI controller + +Required properties: +- compatible : "qcom,sdhci-msm-v4" +- reg: Base address and length of registers: + - Host controller registers (SDHCI) + - SD Core registers +- clock: interface clock (must accept SD bus clock as a frequency) + +Optional properties: +- index: If there is more than one controller - controller index (required + by generic SDHCI code). +- bus_width: Width of SD/eMMC bus (default 4) +- clock-frequency: Frequency of SD/eMMC bus (default 400 kHz) + +Example: + +sdhci@07864000 { + compatible = "qcom,sdhci-msm-v4"; + reg = <0x7864900 0x11c 0x7864000 0x800>; + index = <0x1>; + bus-width = <0x4>; + clock = <&clkc 1>; + clock-frequency = <200000000>; +}; |