Kernel-4.18.0-80.el8_spi-ath79

Binding for Qualcomm Atheros AR7xxx/AR9xxx SPI controller

Required properties:

  • compatible: has to be “qca,-spi”, “qca,ar7100-spi” as fallback.
  • reg: Base address and size of the controllers memory area
  • clocks: phandle of the AHB clock.
  • clock-names: has to be “ahb”.
  • #address-cells: <1>, as required by generic SPI binding.
  • #size-cells: <0>, also as required by generic SPI binding.

Child nodes as per the generic SPI binding.

Example:

spi@1f000000 {
    compatible = "qca,ar9132-spi", "qca,ar7100-spi";
    reg = <0x1f000000 0x10>;

    clocks = <&pll 2>;
    clock-names = "ahb";

    #address-cells = <1>;
    #size-cells = <0>;
};