Kernel-4.18.0-80.el8_jcore,spi

J-Core SPI master

Required properties:

  • compatible: Must be “jcore,spi2”.

  • reg: Memory region for registers.

  • #address-cells: Must be 1.

  • #size-cells: Must be 0.

Optional properties:

  • clocks: If a phandle named “ref_clk” is present, SPI clock speed
    programming is relative to the frequency of the indicated clock.
    Necessary only if the input clock rate is something other than a
    fixed 50 MHz.

  • clock-names: Clock names, one for each phandle in clocks.

See spi-bus.txt for additional properties not specific to this device.

Example:

spi@40 {
compatible = “jcore,spi2”;
#address-cells = <1>;
#size-cells = <0>;
reg = <0x40 0x8>;
spi-max-frequency = <25000000>;
clocks = <&bus_clk>;
clock-names = “ref_clk”;
}