projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d2529500 GD |
1 | * Qualcomm SDHCI controller (sdhci-msm) |
| 2 | ||
| 3 | This file documents differences between the core properties in mmc.txt | |
| 4 | and the properties used by the sdhci-msm driver. | |
| 5 | ||
| 6 | Required properties: | |
| 7 | - compatible: Should contain "qcom,sdhci-msm-v4". | |
| 8 | - reg: Base address and length of the register in the following order: | |
| 9 | - Host controller register map (required) | |
| 10 | - SD Core register map (required) | |
| 11 | - interrupts: Should contain an interrupt-specifiers for the interrupts: | |
| 12 | - Host controller interrupt (required) | |
| 13 | - pinctrl-names: Should contain only one value - "default". | |
| 14 | - pinctrl-0: Should specify pin control groups used for this controller. | |
| 15 | - clocks: A list of phandle + clock-specifier pairs for the clocks listed in clock-names. | |
| 16 | - clock-names: Should contain the following: | |
| 17 | "iface" - Main peripheral bus clock (PCLK/HCLK - AHB Bus clock) (required) | |
| 18 | "core" - SDC MMC clock (MCLK) (required) | |
| 19 | "bus" - SDCC bus voter clock (optional) | |
| 20 | ||
| 21 | Example: | |
| 22 | ||
| 23 | sdhc_1: sdhci@f9824900 { | |
| 24 | compatible = "qcom,sdhci-msm-v4"; | |
| 25 | reg = <0xf9824900 0x11c>, <0xf9824000 0x800>; | |
| 26 | interrupts = <0 123 0>; | |
| 27 | bus-width = <8>; | |
| 28 | non-removable; | |
| 29 | ||
| 602bcdeb GD |
30 | vmmc-supply = <&pm8941_l20>; |
| 31 | vqmmc-supply = <&pm8941_s3>; | |
| d2529500 GD |
32 | |
| 33 | pinctrl-names = "default"; | |
| 34 | pinctrl-0 = <&sdc1_clk &sdc1_cmd &sdc1_data>; | |
| 35 | ||
| 36 | clocks = <&gcc GCC_SDCC1_APPS_CLK>, <&gcc GCC_SDCC1_AHB_CLK>; | |
| 37 | clock-names = "core", "iface"; | |
| 38 | }; | |
| 39 | ||
| 40 | sdhc_2: sdhci@f98a4900 { | |
| 41 | compatible = "qcom,sdhci-msm-v4"; | |
| 42 | reg = <0xf98a4900 0x11c>, <0xf98a4000 0x800>; | |
| 43 | interrupts = <0 125 0>; | |
| 44 | bus-width = <4>; | |
| 45 | cd-gpios = <&msmgpio 62 0x1>; | |
| 46 | ||
| 602bcdeb GD |
47 | vmmc-supply = <&pm8941_l21>; |
| 48 | vqmmc-supply = <&pm8941_l13>; | |
| d2529500 GD |
49 | |
| 50 | pinctrl-names = "default"; | |
| 51 | pinctrl-0 = <&sdc2_clk &sdc2_cmd &sdc2_data>; | |
| 52 | ||
| 53 | clocks = <&gcc GCC_SDCC2_APPS_CLK>, <&gcc GCC_SDCC2_AHB_CLK>; | |
| 54 | clock-names = "core", "iface"; | |
| 55 | }; |