openwrt/target/linux/mediatek/dts/mt7981b-asus-rt-ax52.dts

// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/dts-v1/;
#include "mt7981b.dtsi"
/ {
	model = "ASUS RT-AX52";
	compatible = "asus,rt-ax52", "mediatek,mt7981";

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

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

	memory@40000000 {
		reg = <0 0x40000000 0 0x10000000>;
		device_type = "memory";
	};

	keys {
		compatible = "gpio-keys";

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

		wps {
			label = "wps";
			gpios = <&pio 0 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_WPS_BUTTON>;
		};
	};

	leds {
		compatible = "gpio-leds";

		wlan24 {
			function = LED_FUNCTION_WLAN_2GHZ;
			color = <LED_COLOR_ID_WHITE>;
			gpios = <&pio 34 GPIO_ACTIVE_LOW>;
			linux,default-trigger = "phy0tpt";
		};

		wlan5 {
			function = LED_FUNCTION_WLAN_5GHZ;
			color = <LED_COLOR_ID_WHITE>;
			gpios = <&pio 35 GPIO_ACTIVE_LOW>;
			linux,default-trigger = "phy1tpt";
		};

		wan {
			function = LED_FUNCTION_WAN;
			color = <LED_COLOR_ID_BLUE>;
			gpios = <&pio 8 GPIO_ACTIVE_LOW>;
		};

		led_system: system {
			label = "blue:system";
			gpios = <&pio 12 GPIO_ACTIVE_HIGH>;
		};
	};

	timer {
		clock-frequency = <12996791>;
	};
};

&uart0 {
	status = "okay";
};

&eth {
	status = "okay";

	gmac0: mac@0 {
		/* LAN */
		compatible = "mediatek,eth-mac";
		reg = <0>;
		nvmem-cells = <&macaddr_factory_4>;
		nvmem-cell-names = "mac-address";
		phy-mode = "2500base-x";

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

	gmac1: mac@1 {
		/* WAN */
		compatible = "mediatek,eth-mac";
		reg = <1>;
		nvmem-cells = <&macaddr_factory_4>;
		nvmem-cell-names = "mac-address";
		phy-mode = "gmii";
		phy-handle = <&phy0>;
		label = "wan";
	};

	mdio: mdio-bus {
		#address-cells = <1>;
		#size-cells = <0>;

		phy0: ethernet-phy@0 {
			compatible = "ethernet-phy-id03a2.9461";
			reg = <0>;
			phy-mode = "gmii";
			#nvmem-cells = <&phy_calibration>;
			#nvmem-cell-names = "phy-cal-data";
		};

		switch@1f {
			compatible = "mediatek,mt7531";
			reg = <31>;
			reset-gpios = <&pio 39 0>;

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

				port@0 {
					reg = <0>;
					label = "lan3";
				};

				port@1 {
					reg = <1>;
					label = "lan2";
				};

				port@2 {
					reg = <2>;
					label = "lan1";
				};

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

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

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

	spi_nand_flash: flash@0 {
		compatible = "u-boot-dont-touch-spi-nand";
		#address-cells = <1>;
		#size-cells = <1>;
		reg = <0>;

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

		/*
		 * ASUS bootloader tries to replace the partitions defined in
		 * Device Tree and by that also deletes all additional properties
		 * needed for UBI and NVMEM-on-UBI.
		 * Prevent this from happening by tricking the loader to delete and
		 * replace a bait node instead (works with older bootloaders).
		 */
		partitions: dummy {
			compatible = "u-boot-dummy-partitions";
			#address-cells = <1>;
			#size-cells = <1>;

			partition@0 {
				reg = <0x0 0x0>;
				label = "remove_me";
			};
		};

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

			partition@0 {
				reg = <0x0 0x400000>;
				label = "bootloader";
				read-only;
			};

			partition@400000 {
				compatible = "linux,ubi";
				reg = <0x400000 0xfc00000>;
				label = "UBI_DEV";

				volumes {
					ubi_factory: ubi-volume-factory {
						volname = "Factory";
					};
				};
			};
		};
	};
};

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

		eeprom_factory_0: eeprom@0 {
			reg = <0x0 0x1000>;
		};

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

&spi1 {
	pinctrl-names = "default";
	pinctrl-0 = <&spic_pins>;
	status = "disabled";
};

&pio {
	i2c_pins: i2c-pins-g0 {
		mux {
			function = "i2c";
			groups = "i2c0_0";
		};
	};

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

		conf-pu {
			pins = "SPI0_CS", "SPI0_HOLD", "SPI0_WP";
			drive-strength = <MTK_DRIVE_8mA>;
			bias-pull-up = <MTK_PUPD_SET_R1R0_11>;
		};

		conf-pd {
			pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO";
			drive-strength = <MTK_DRIVE_8mA>;
			bias-pull-down = <MTK_PUPD_SET_R1R0_11>;
		};
	};

	spic_pins: spi1-pins {
		mux {
			function = "spi";
			groups = "spi1_1";
		};
	};

	uart1_pins: uart1-pins-g1 {
		mux {
			function = "uart";
			groups = "uart1_1";
		};
	};

	uart2_pins: uart2-pins-g1 {
		mux {
			function = "uart";
			groups = "uart2_1";
		};
	};
};

&watchdog {
	status = "okay";
};

&wifi {
	nvmem-cells = <&eeprom_factory_0>;
	nvmem-cell-names = "eeprom";

	status = "okay";
};