openwrt/target/linux/mediatek/dts/mt7981b-yuncore-ax835.dts

// SPDX-License-Identifier: (GPL-2.0 OR MIT)

/dts-v1/;

#include "mt7981.dtsi"

/ {
	compatible = "yuncore,ax835", "mediatek,mt7981";
	model = "YunCore AX835";

	aliases {
		ethernet0 = &gmac0;
		led-boot = &led_system;
		led-failsafe = &led_system;
		led-running = &led_system;
		led-upgrade = &led_system;
		serial0 = &uart0;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	gpio-keys {
		compatible = "gpio-keys";

		reset {
			label = "reset";
			linux,code = <KEY_RESTART>;
			gpios = <&pio 1 GPIO_ACTIVE_LOW>;
		};
	};

	reg_led_vbus {
		compatible = "regulator-fixed";
		regulator-name = "led_vbus";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
		gpio = <&pio 5 GPIO_ACTIVE_HIGH>;
	};

	leds {
		compatible = "gpio-leds";

		led_system: led_system {
			label = "red:system";
			gpios = <&pio 4 GPIO_ACTIVE_LOW>;
		};

		led_wifi24 {
			label = "green:wifi2";
			gpios = <&pio 34 GPIO_ACTIVE_LOW>;
			linux,default-trigger = "phy0tpt";
		};

		led_wifi5 {
			label = "blue:wifi5";
			gpios = <&pio 35 GPIO_ACTIVE_LOW>;
			linux,default-trigger = "phy1tpt";
		};

		led_hwwatchdog {
			// a gpio-wdt watchdog couldn't be made to work.
			// the device rebooted after 5 minutes.
			label = "hwwatchdog";
			gpios = <&pio 7 GPIO_ACTIVE_LOW>;
			linux,default-trigger = "timer";
			led-pattern = <1000>, <1000>;
		};

		// there's another "syswatchdog" on gpio2
	};
};

&eth {
	pinctrl-names = "default";
	pinctrl-0 = <&mdio_pins>;

	status = "okay";

	gmac0: mac@0 {
		compatible = "mediatek,eth-mac";
		reg = <0>;
		phy-mode = "2500base-x";

		nvmem-cell-names = "mac-address";
		nvmem-cells = <&macaddr_factory_2a>;

		fixed-link {
			speed = <2500>;
			full-duplex;
			pause;
		};
	};
};

&mdio_bus {
	switch: switch@1f {
		compatible = "mediatek,mt7531";
		reg = <31>;
		reset-gpios = <&pio 39 GPIO_ACTIVE_HIGH>;
	};
};

&pio {
	spi0_flash_pins: spi0-pins {
		mux {
			function = "spi";
			groups = "spi0", "spi0_wp_hold";
		};
	};

	spi2_flash_pins: spi2-pins {
		mux {
			function = "spi";
			groups = "spi2", "spi2_wp_hold";
		};

		conf-pu {
			pins = "SPI2_CS", "SPI2_HOLD", "SPI2_WP";
			drive-strength = <8>;
			bias-pull-up = <103>;
		};

		conf-pd {
			pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO";
			drive-strength = <8>;
			bias-pull-down = <103>;
		};
	};
};

&spi0 {
	pinctrl-names = "default";
	pinctrl-0 = <&spi0_flash_pins>;
	status = "disabled";
};

&spi2 {
	pinctrl-names = "default";
	pinctrl-0 = <&spi2_flash_pins>;
	status = "okay";

	flash@0 {
		#address-cells = <1>;
		#size-cells = <1>;

		compatible = "jedec,spi-nor";
		reg = <0>;

		spi-max-frequency = <52000000>;
		spi-tx-bus-width = <4>;
		spi-rx-bus-width = <4>;

		partitions {
			compatible = "fixed-partitions";
			#address-cells = <1>;
			#size-cells = <1>;

			partition@00000 {
				label = "BL2";
				reg = <0x00000 0x40000>;
				read-only;
			};

			partition@40000 {
				label = "u-boot-env";
				reg = <0x40000 0x10000>;
				read-only;
			};

			factory: partition@50000 {
				label = "Factory";
				reg = <0x50000 0x10000>;
				read-only;

				nvmem-layout {
					compatible = "fixed-layout";
					#address-cells = <1>;
					#size-cells = <1>;

					eeprom_factory: eeprom@0 {
						reg = <0x0 0x1000>;
					};

					macaddr_factory_4: macaddr@4 {
						reg = <0x4 0x6>;
					};

					macaddr_factory_24: macaddr@24 {
						reg = <0x24 0x6>;
					};

					macaddr_factory_2a: macaddr@2a {
						reg = <0x2a 0x6>;
					};
				};
			};

			partition@100000 {
				label = "FIP";
				reg = <0x100000 0x80000>;
				read-only;
			};

			partition@180000 {
				compatible = "denx,fit";
				label = "firmware";
				reg = <0x180000 0xe00000>;
			};
		};
	};
};

&switch {
	ports {
		#address-cells = <1>;
		#size-cells = <0>;

		port@3 {
			reg = <3>;
			label = "lan";
		};

		port@4 {
			reg = <4>;
			label = "wan";
		};

		port@6 {
			reg = <6>;
			label = "cpu";
			ethernet = <&gmac0>;
			phy-mode = "2500base-x";

			fixed-link {
				speed = <2500>;
				full-duplex;
				pause;
			};
		};
	};
};

&uart0 {
	status = "okay";
};

&watchdog {
	status = "okay";
};

&wifi {
	status = "okay";
	nvmem-cells = <&eeprom_factory 0>;
	nvmem-cell-names = "eeprom";
};