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1* Qualcomm SDHCI controller (sdhci-msm)
2
3This file documents differences between the core properties in mmc.txt
4and the properties used by the sdhci-msm driver.
5
6Required properties:
7- compatible: Should contain:
8		"qcom,sdhci-msm-v4" for sdcc versions less than 5.0
9		"qcom,sdhci-msm-v5" for sdcc versions >= 5.0
10		For SDCC version 5.0.0, MCI registers are removed from SDCC
11		interface and some registers are moved to HC. New compatible
12		string is added to support this change - "qcom,sdhci-msm-v5".
13- reg: Base address and length of the register in the following order:
14	- Host controller register map (required)
15	- SD Core register map (required)
16- interrupts: Should contain an interrupt-specifiers for the interrupts:
17	- Host controller interrupt (required)
18- pinctrl-names: Should contain only one value - "default".
19- pinctrl-0: Should specify pin control groups used for this controller.
20- clocks: A list of phandle + clock-specifier pairs for the clocks listed in clock-names.
21- clock-names: Should contain the following:
22	"iface" - Main peripheral bus clock (PCLK/HCLK - AHB Bus clock) (required)
23	"core"	- SDC MMC clock (MCLK) (required)
24	"bus"	- SDCC bus voter clock (optional)
25	"xo"	- TCXO clock (optional)
26	"cal"	- reference clock for RCLK delay calibration (optional)
27	"sleep"	- sleep clock for RCLK delay calibration (optional)
28
29Example:
30
31	sdhc_1: sdhci@f9824900 {
32		compatible = "qcom,sdhci-msm-v4";
33		reg = <0xf9824900 0x11c>, <0xf9824000 0x800>;
34		interrupts = <0 123 0>;
35		bus-width = <8>;
36		non-removable;
37
38		vmmc-supply = <&pm8941_l20>;
39		vqmmc-supply = <&pm8941_s3>;
40
41		pinctrl-names = "default";
42		pinctrl-0 = <&sdc1_clk &sdc1_cmd &sdc1_data>;
43
44		clocks = <&gcc GCC_SDCC1_APPS_CLK>, <&gcc GCC_SDCC1_AHB_CLK>;
45		clock-names = "core", "iface";
46	};
47
48	sdhc_2: sdhci@f98a4900 {
49		compatible = "qcom,sdhci-msm-v4";
50		reg = <0xf98a4900 0x11c>, <0xf98a4000 0x800>;
51		interrupts = <0 125 0>;
52		bus-width = <4>;
53		cd-gpios = <&msmgpio 62 0x1>;
54
55		vmmc-supply = <&pm8941_l21>;
56		vqmmc-supply = <&pm8941_l13>;
57
58		pinctrl-names = "default";
59		pinctrl-0 = <&sdc2_clk &sdc2_cmd &sdc2_data>;
60
61		clocks = <&gcc GCC_SDCC2_APPS_CLK>, <&gcc GCC_SDCC2_AHB_CLK>;
62		clock-names = "core", "iface";
63	};
64