bcm2836-rpi-2-b+arpi600+dragino-lora.dts

/*
 * Copyright (c) 2017 Andreas Färber
 *
 * SPDX-License-Identifier: GPL-2.0+ OR MIT
 */

/dts-v1/;
/plugin/;

/ {
	compatible = "brcm,bcm2836";

	#address-cells = <1>;
	#size-cells = <0>;

	fragment@0 {
		reg = <0>;

		target-path = "/soc/gpio@7e200000/gpioout";

		__overlay__ {
			/* Add GPIO 4 */
			brcm,pins = <4 6>;
		};
	};

	fragment@1 {
		reg = <1>;

		target-path = "/soc/gpio@7e200000/alt0";

		__overlay__ {
			/* Drop GPIO 4 */
			brcm,pins = <0 1 2 3 5 7 8 9 10 11 14 15 40 45>;
		};
	};

	fragment@2 {
		reg = <2>;

		target-path = "/soc/spi@7e204000";

		__overlay__ {
			status = "okay";

			#address-cells = <1>;
			#size-cells = <0>;

			lora@0 {
				compatible = "semtech,sx1276";
				reg = <0>;
				spi-max-frequency = <500000>;
				clock-frequency = <32000000>;
				radio-frequency = <868000000>;
				/*
				 * RESET == D9 == P7 == 4
				 * DIO0  == D2 == P0 == 17
				 * DIO1  == D6 == P4 == 23
				 * DIO2  == D7 == P5 == 24
				 * DIO3
				 * DIO4
				 * DIO5  == D8 == P6 == 25
				 */
				reset-gpio = <&gpio 4 1>;
				dio-gpios = <&gpio 17 1>,
				            <&gpio 23 1>,
				            <&gpio 24 1>,
				            <0>,
				            <0>,
				            <&gpio 27 1>;
			};
		};
	};
};