Kernel-4.18.0-80.el8_spi-cadence

Cadence SPI controller Device Tree Bindings

Required properties:

• compatible : Should be “cdns,spi-r1p6” or “xlnx,zynq-spi-r1p6”.
• reg : Physical base address and size of SPI registers map.
• interrupts : Property with a value describing the interrupt

          number.
  

• interrupt-parent : Must be core interrupt controller
• clock-names : List of input clock names - “ref_clk”, “pclk”

          (See clock bindings for details).
  

• clocks : Clock phandles (see clock bindings for details).

Optional properties:

• num-cs : Number of chip selects used.

          If a decoder is used, this will be the number of
          chip selects after the decoder.
  

• is-decoded-cs : Flag to indicate whether decoder is used or not.

Example:

spi@e0007000 {
    compatible = "xlnx,zynq-spi-r1p6";
    clock-names = "ref_clk", "pclk";
    clocks = <&clkc 26>, <&clkc 35>;
    interrupt-parent = <&intc>;
    interrupts = <0 49 4>;
    num-cs = <4>;
    is-decoded-cs = <0>;
    reg = <0xe0007000 0x1000>;
} ;