Kernel-4.18.0-80.el8_spi-xlp

SPI Master controller for Netlogic XLP MIPS64 SOCs

Currently this SPI controller driver is supported for the following
Netlogic XLP SoCs:
XLP832, XLP316, XLP208, XLP980, XLP532

Required properties:

• compatible : Should be “netlogic,xlp832-spi”.
• #address-cells : Number of cells required to define a chip select address

          on the SPI bus.
  

• #size-cells : Should be zero.
• reg : Should contain register location and length.
• clocks : Phandle of the spi clock
• interrupts : Interrupt number used by this controller.
• interrupt-parent : Phandle of the parent interrupt controller.

SPI slave nodes must be children of the SPI master node and can contain
properties described in Documentation/devicetree/bindings/spi/spi-bus.txt.

Example:

spi: xlp_spi@3a100 {
    compatible = "netlogic,xlp832-spi";
    #address-cells = <1>;
    #size-cells = <0>;
    reg = <0 0x3a100 0x100>;
    clocks = <&spi_clk>;
    interrupts = <34>;
    interrupt-parent = <&pic>;

    spi_nor@1 {
        compatible = "spansion,s25sl12801";
        #address-cells = <1>;
        #size-cells = <1>;
        reg = <1>;    /* Chip Select */
        spi-max-frequency = <40000000>;
    };

};