/*
 * Device tree overlay for using 4 CS pins on spi0 by Kristian Sloth Lauszus.
 */

/dts-v1/;
/plugin/;

/ {
    compatible = "brcm,bcm2835";

    fragment@0 {
        target = <&spi0>;
        frag0: __overlay__ {
            /* needed to avoid dtc warning */
            #address-cells = <1>;
            #size-cells = <0>;
            pinctrl-names = "default";
            pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
            cs-gpios = <&gpio 8 1>, <&gpio 7 1>, <&gpio 6 1>, <&gpio 3 1>;
            status = "okay"; /* enable spi0 */

            spidev@2 {
                compatible = "spidev";
                reg = <2>;   /* CE2 */
                spi-max-frequency = <125000000>;
            };

            spidev@3 {
                compatible = "spidev";
                reg = <3>;   /* CE3 */
                spi-max-frequency = <125000000>;
            };
        };
    };

    fragment@1 {
        target = <&gpio>;
        __overlay__ {
            spi0_cs_pins: spi0_cs_pins {
                brcm,pins = <8 7 6 3>;
                brcm,function = <1>; /* out */
            };
        };
    };

    __overrides__ {
        cs0_pin = <&frag0>,"cs-gpios:4",
                  <&spi0_cs_pins>,"brcm,pins:0";
        cs1_pin = <&frag0>,"cs-gpios:16",
                  <&spi0_cs_pins>,"brcm,pins:4";
        cs2_pin = <&frag0>,"cs-gpios:28",
                  <&spi0_cs_pins>,"brcm,pins:8";
        cs3_pin = <&frag0>,"cs-gpios:40",
                  <&spi0_cs_pins>,"brcm,pins:12";
    };
};