--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+/dts-v1/;
+
+#include "mt7981.dtsi"
+
+/ {
+ model = "NRadio C8-668GL";
+ compatible = "nradio,c8-668gl", "mediatek,mt7981";
+
+ aliases {
+ ethernet0 = &gmac0;
+ led-boot = &led_power;
+ led-failsafe = &led_power;
+ led-running = &led_power;
+ led-upgrade = &led_power;
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n1";
+ /* If official system version < 1.9.2.n6.c3, use root=PARTLABEL=rootfs */
+ bootargs = "console=ttyS0,115200n1 root=PARTLABEL=rootfs_2nd rootwait";
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+
+ reset {
+ label = "reset";
+ linux,code = <KEY_RESTART>;
+ gpios = <&pio 1 GPIO_ACTIVE_LOW>;
+ };
+
+ wps {
+ label = "wps";
+ linux,code = <KEY_WPS_BUTTON>;
+ gpios = <&pio 9 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ gpio-export {
+ compatible = "gpio-export";
+ #size-cells = <0>;
+
+ cpepower {
+ gpio-export,name = "cpe-pwr";
+ gpio-export,output = <0>;
+ gpios = <&pio 31 GPIO_ACTIVE_LOW>;
+ };
+
+ cpesel0 {
+ gpio-export,name = "cpe-sel0";
+ gpio-export,output = <1>;
+ gpios = <&pio 30 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led_power: power {
+ color = <LED_COLOR_ID_BLUE>;
+ function = LED_FUNCTION_POWER;
+ gpios = <&pio 10 GPIO_ACTIVE_LOW>;
+ };
+
+ led-cellular-5g {
+ color = <LED_COLOR_ID_BLUE>;
+ function = LED_FUNCTION_INDICATOR;
+ function-enumerator = <0>;
+ gpios = <&pio 11 GPIO_ACTIVE_LOW>;
+ };
+
+ led-cellular-4g {
+ color = <LED_COLOR_ID_BLUE>;
+ function = LED_FUNCTION_INDICATOR;
+ function-enumerator = <1>;
+ gpios = <&pio 12 GPIO_ACTIVE_LOW>;
+ };
+
+ led-wifi {
+ color = <LED_COLOR_ID_BLUE>;
+ function = LED_FUNCTION_WLAN;
+ gpios = <&pio 13 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&watchdog {
+ status = "okay";
+};
+
+&mmc0 {
+ pinctrl-names = "default", "state_uhs";
+ pinctrl-0 = <&mmc0_pins_default>;
+ pinctrl-1 = <&mmc0_pins_uhs>;
+ bus-width = <8>;
+ max-frequency = <52000000>;
+ cap-mmc-highspeed;
+ vmmc-supply = <®_3p3v>;
+ non-removable;
+ status = "okay";
+
+ card@0 {
+ compatible = "mmc-card";
+ reg = <0>;
+
+ block {
+ compatible = "block-device";
+ partitions {
+ block-partition-env {
+ partname = "u-boot-env";
+
+ nvmem-layout {
+ compatible = "u-boot,env";
+ };
+ };
+
+ block-partition-factory {
+ partname = "factory";
+
+ nvmem-layout {
+ compatible = "fixed-layout";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ eeprom_factory_0: eeprom@0 {
+ reg = <0x0 0x1000>;
+ };
+ };
+ };
+ };
+ };
+ };
+};
+
+&pio {
+ mmc0_pins_default: mmc0-pins-default {
+ mux {
+ function = "flash";
+ groups = "emmc_45";
+ };
+ };
+
+ mmc0_pins_uhs: mmc0-pins-uhs {
+ mux {
+ function = "flash";
+ groups = "emmc_45";
+ };
+ };
+};
+
+ð {
+ status = "okay";
+
+ gmac0: mac@0 {
+ compatible = "mediatek,eth-mac";
+ reg = <0>;
+ phy-mode = "2500base-x";
+
+ fixed-link {
+ speed = <2500>;
+ full-duplex;
+ pause;
+ };
+ };
+
+ gmac1: mac@1 {
+ compatible = "mediatek,eth-mac";
+ reg = <1>;
+ phy-mode = "2500base-x";
+ phy-handle = <&phy21>;
+ };
+
+ mdio: mdio-bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ phy5: ethernet-phy@5 {
+ compatible = "ethernet-phy-ieee802.3-c45";
+ reg = <5>;
+ reset-gpios = <&pio 7 GPIO_ACTIVE_LOW>;
+ reset-assert-us = <600>;
+ reset-deassert-us = <20000>;
+ };
+
+ phy21: ethernet-phy@21 {
+ compatible = "ethernet-phy-ieee802.3-c45";
+ reg = <21>;
+ reset-gpios = <&pio 8 GPIO_ACTIVE_LOW>;
+ reset-assert-us = <600>;
+ reset-deassert-us = <20000>;
+ };
+
+ switch@1f {
+ compatible = "mediatek,mt7531";
+ reg = <31>;
+ reset-gpios = <&pio 39 GPIO_ACTIVE_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&pio>;
+ interrupts = <38 IRQ_TYPE_LEVEL_HIGH>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@1 {
+ reg = <1>;
+ label = "lan1";
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan2";
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan3";
+ };
+
+ port@5 {
+ reg = <5>;
+ label = "lan4";
+ phy-mode = "2500base-x";
+ phy-handle = <&phy5>;
+ };
+
+ port@6 {
+ reg = <6>;
+ label = "cpu";
+ ethernet = <&gmac0>;
+ phy-mode = "2500base-x";
+
+ fixed-link {
+ speed = <2500>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+ };
+};
+
+&usb_phy {
+ status = "okay";
+};
+
+&xhci {
+ status = "okay";
+};
+
+&wifi {
+ nvmem-cells = <&eeprom_factory_0>;
+ nvmem-cell-names = "eeprom";
+ status = "okay";
+};