Kernel-4.18.0-80.el8_microchip,sdhci-pic32

• Microchip PIC32 SDHCI Controller

This file documents differences between the core properties in mmc.txt
and the properties used by the sdhci-pic32 driver.

Required properties:

• compatible: Should be “microchip,pic32mzda-sdhci”
• interrupts: Should contain interrupt
• clock-names: Should be “base_clk”, “sys_clk”.

           See: Documentation/devicetree/bindings/resource-names.txt
  

• clocks: Phandle to the clock.

      See: Documentation/devicetree/bindings/clock/clock-bindings.txt
  

• pinctrl-names: A pinctrl state names “default” must be defined.
• pinctrl-0: Phandle referencing pin configuration of the SDHCI controller.

         See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
  

Example:

sdhci@1f8ec000 {
    compatible = "microchip,pic32mzda-sdhci";
    reg = <0x1f8ec000 0x100>;
    interrupts = <191 IRQ_TYPE_LEVEL_HIGH>;
    clocks = <&rootclk REF4CLK>, <&rootclk PB5CLK>;
    clock-names = "base_clk", "sys_clk";
    bus-width = <4>;
    cap-sd-highspeed;
    pinctrl-names = "default";
    pinctrl-0 = <&pinctrl_sdhc1>;
};