openwrt_lede/target/linux/ramips/dts/HLKRM04.dts

/dts-v1/;

#include "rt5350.dtsi"

#include <dt-bindings/input/input.h>

/ {
	compatible = "HLKRM04", "ralink,rt5350-soc";
	model = "HILINK HLK-RM04";

	memory@0 {
		device_type = "memory";
		reg = <0x0 0x1000000>;
	};

	chosen {
		bootargs = "console=ttyS1,57600";
	};

	gpio-export {
		compatible = "gpio-export";
		#size-cells = <0>;

		/* I2C */
		gpio1 {
			/* I2C_I2C_SD */
			gpio-export,name = "hlk-rm04:gpio0";
			gpio-export,direction_may_change = <1>;
			gpios = <&gpio0 1 0>;
		};
		gpio2 {
			/* I2C_I2C_SCLK */
			gpio-export,name = "hlk-rm04:gpio1";
			gpio-export,direction_may_change = <1>;
			gpios = <&gpio0 2 0>;
		};
	};

	gpio-keys-polled {
		compatible = "gpio-keys-polled";
		#address-cells = <1>;
		#size-cells = <0>;
		poll-interval = <20>;
		reset {
			label = "reset";
			gpios = <&gpio0 0 1>;
			linux,code = <KEY_RESTART>;
		};
		wps {
			label = "wps";
			gpios = <&gpio0 14 1>;
			linux,code = <KEY_WPS_BUTTON>;
		};
	};
};

&uart {
	status = "okay";
};

&spi0 {
	status = "okay";

	m25p80@0 {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "jedec,spi-nor";
		reg = <0>;
		spi-max-frequency = <10000000>;

		partition@0 {
			label = "u-boot";
			reg = <0x0 0x30000>;
			read-only;
		};

		partition@30000 {
			label = "u-boot-env";
			reg = <0x30000 0x10000>;
			read-only;
		};

		factory: partition@40000 {
			label = "factory";
			reg = <0x40000 0x10000>;
			read-only;
		};

		partition@50000 {
			label = "firmware";
			reg = <0x50000 0x3b0000>;
		};
	};
};

&pinctrl {
	state_default: pinctrl0 {
		gpio {
			ralink,group = "i2c", "jtag";
			ralink,function = "gpio";
		};

		uartf_gpio {
			ralink,group = "uartf";
			ralink,function = "gpio uartf";
		};
	};
};

&ethernet {
	mtd-mac-address = <&factory 0x4>;
};

&wmac {
	ralink,mtd-eeprom = <&factory 0>;
};

&ehci {
	status = "okay";
};

&ohci {
	status = "okay";
};