xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/mmc/microchip,sdhci-pic32.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun* Microchip PIC32 SDHCI Controller
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunThis file documents differences between the core properties in mmc.txt
4*4882a593Smuzhiyunand the properties used by the sdhci-pic32 driver.
5*4882a593Smuzhiyun
6*4882a593SmuzhiyunRequired properties:
7*4882a593Smuzhiyun- compatible: Should be "microchip,pic32mzda-sdhci"
8*4882a593Smuzhiyun- interrupts: Should contain interrupt
9*4882a593Smuzhiyun- clock-names: Should be "base_clk", "sys_clk".
10*4882a593Smuzhiyun               See: Documentation/devicetree/bindings/resource-names.txt
11*4882a593Smuzhiyun- clocks: Phandle to the clock.
12*4882a593Smuzhiyun          See: Documentation/devicetree/bindings/clock/clock-bindings.txt
13*4882a593Smuzhiyun- pinctrl-names: A pinctrl state names "default" must be defined.
14*4882a593Smuzhiyun- pinctrl-0: Phandle referencing pin configuration of the SDHCI controller.
15*4882a593Smuzhiyun             See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
16*4882a593Smuzhiyun
17*4882a593SmuzhiyunExample:
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun	sdhci@1f8ec000 {
20*4882a593Smuzhiyun		compatible = "microchip,pic32mzda-sdhci";
21*4882a593Smuzhiyun		reg = <0x1f8ec000 0x100>;
22*4882a593Smuzhiyun		interrupts = <191 IRQ_TYPE_LEVEL_HIGH>;
23*4882a593Smuzhiyun		clocks = <&rootclk REF4CLK>, <&rootclk PB5CLK>;
24*4882a593Smuzhiyun		clock-names = "base_clk", "sys_clk";
25*4882a593Smuzhiyun		bus-width = <4>;
26*4882a593Smuzhiyun		cap-sd-highspeed;
27*4882a593Smuzhiyun		pinctrl-names = "default";
28*4882a593Smuzhiyun		pinctrl-0 = <&pinctrl_sdhc1>;
29*4882a593Smuzhiyun	};
30