FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/spi/spi-cadence.txt

     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.
     - 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>;
            } ;

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