recipes-kernel/linux/linux-3.19/overlays/port1_lora.dts


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/dts-v1/;
/plugin/;

/* enable spi0 for spidev */

/ {
    fragment@0 {
        target-path = "/ahb/apb/spi@f0000000";
        __overlay__ {
            status = "okay";

            ap1-cs0@0 {
                compatible = "spidev";
                spi-max-frequency = <1000000>;
                reg = <0>;
            };
        };
    };
};