--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+/dts-v1/;
+#include "mt7981.dtsi"
+
+/ {
+ model = "GatoNetworks GDSP";
+ compatible = "gatonetworks,gdsp", "mediatek,mt7981";
+
+ aliases {
+ serial0 = &uart0;
+ label-mac-device = &wifi_band_0;
+ led-boot = &sg1;
+ led-failsafe = &sg1;
+ led-running = &sg1;
+ led-upgrade = &sg1;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ bootargs = "console=ttyS0,115200n1 earlycon=uart8250,mmio32,0x11002000";
+ rootdisk = <&firmware>;
+ };
+
+ memory {
+ reg = <0 0x40000000 0 0x10000000>;
+ };
+
+ reg_3p3v: regulator-3p3v {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_5v: regulator-5v {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-5V";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+
+ reset {
+ label = "reset";
+ linux,code = <KEY_RESTART>;
+ gpios = <&pio 1 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ gpio-export {
+ compatible = "gpio-export";
+
+ modem1 {
+ gpio-export,name = "modem1";
+ gpio-export,output = <0>;
+ gpios = <&pio 2 GPIO_ACTIVE_LOW>;
+ };
+
+ modem2 {
+ gpio-export,name = "modem2";
+ gpio-export,output = <0>;
+ gpios = <&pio 14 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ sim1 {
+ label = "green:sim1";
+ gpios = <&pio 13 GPIO_ACTIVE_LOW>;
+ };
+
+ sim2 {
+ label = "green:sim2";
+ gpios = <&pio 0 GPIO_ACTIVE_LOW>;
+ };
+
+ sg1: sg1 {
+ label = "green:sg1";
+ gpios = <&pio 10 GPIO_ACTIVE_LOW>;
+ };
+
+ sg2 {
+ label = "green:sg2";
+ gpios = <&pio 11 GPIO_ACTIVE_LOW>;
+ };
+
+ sg3 {
+ label = "green:sg3";
+ gpios = <&pio 12 GPIO_ACTIVE_LOW>;
+ };
+
+ sg4 {
+ label = "green:sg4";
+ gpios = <&pio 7 GPIO_ACTIVE_LOW>;
+ };
+
+ sg5 {
+ label = "green:sg5";
+ gpios = <&pio 8 GPIO_ACTIVE_LOW>;
+ };
+
+ sg6 {
+ label = "green:sg6";
+ gpios = <&pio 9 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ gpio-watchdog {
+ compatible = "linux,wdt-gpio";
+ gpios = <&pio 6 GPIO_ACTIVE_LOW>;
+ hw_algo = "toggle";
+ hw_margin_ms = <25000>;
+ always-running;
+ };
+};
+
+&watchdog {
+ status = "okay";
+};
+
+ð {
+ status = "okay";
+
+ gmac0: mac@0 {
+ compatible = "mediatek,eth-mac";
+ reg = <0>;
+ phy-mode = "2500base-x";
+
+ nvmem-cells = <&macaddr_lan>;
+ nvmem-cell-names = "mac-address";
+
+ fixed-link {
+ speed = <2500>;
+ full-duplex;
+ pause;
+ };
+ };
+
+ mdio: mdio-bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ switch@1f {
+ compatible = "mediatek,mt7531";
+ reg = <31>;
+ reset-gpios = <&pio 39 0>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&pio>;
+ interrupts = <38 IRQ_TYPE_LEVEL_HIGH>;
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ swphy0: phy@0 {
+ reg = <0>;
+ };
+
+ swphy1: phy@1 {
+ reg = <1>;
+ };
+
+ swphy2: phy@2 {
+ reg = <2>;
+ };
+
+ swphy3: phy@3 {
+ reg = <3>;
+ };
+
+ swphy4: phy@4 {
+ reg = <4>;
+ };
+ };
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "lan1";
+ phy-handle = <&swphy0>;
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan2";
+ phy-handle = <&swphy1>;
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan3";
+ phy-handle = <&swphy2>;
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan4";
+ phy-handle = <&swphy3>;
+ };
+
+ port@4 {
+ reg = <4>;
+ label = "wan";
+ nvmem-cells = <&macaddr_wan>;
+ nvmem-cell-names = "mac-address";
+ phy-handle = <&swphy4>;
+ };
+
+ port@6 {
+ reg = <6>;
+ ethernet = <&gmac0>;
+ phy-mode = "2500base-x";
+
+ fixed-link {
+ speed = <2500>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+ };
+};
+
+&crypto {
+ status = "okay";
+};
+
+&wifi {
+ mediatek,mtd-eeprom = <&factory 0x0>;
+ status = "okay";
+
+ wifi_band_0: band@0 {
+ reg = <0>;
+ nvmem-cells = <&macaddr_wifi 0>;
+ nvmem-cell-names = "mac-address";
+ };
+
+ band@1 {
+ reg = <1>;
+ nvmem-cells = <&macaddr_wifi 1>;
+ nvmem-cell-names = "mac-address";
+ };
+};
+
+&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>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@00000 {
+ label = "BL2";
+ reg = <0x00000 0x0040000>;
+ read-only;
+ };
+
+ partition@40000 {
+ label = "u-boot-env";
+ reg = <0x40000 0x0010000>;
+ };
+
+ factory: partition@50000 {
+ label = "Factory";
+ reg = <0x50000 0x00B0000>;
+ read-only;
+
+ nvmem-layout {
+ compatible = "fixed-layout";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ macaddr_wifi: macaddr@4 {
+ reg = <0x4 0x6>;
+ compatible = "mac-base";
+ #nvmem-cell-cells = <1>;
+ };
+
+ macaddr_wan: macaddr@24 {
+ reg = <0x24 0x6>;
+ };
+
+ macaddr_lan: macaddr@2a {
+ reg = <0x2a 0x6>;
+ };
+ };
+ };
+
+ partition@100000 {
+ label = "FIP";
+ reg = <0x100000 0x0080000>;
+ read-only;
+ };
+
+ firmware: partition@180000 {
+ label = "firmware";
+ reg = <0x180000 0x1E80000>;
+ };
+ };
+ };
+};
+
+&pio {
+ uart1_pins: uart1-pins {
+ mux {
+ function = "uart";
+ groups = "uart1_0";
+ };
+ };
+
+ uart2_pins: uart2-pins {
+ mux {
+ function = "uart";
+ groups = "uart2_0_tx_rx";
+ };
+ };
+
+ spi2_flash_pins: spi2-pins {
+ mux {
+ function = "spi";
+ groups = "spi2", "spi2_wp_hold";
+ };
+
+ conf-pu {
+ pins = "SPI2_CS", "SPI2_HOLD", "SPI2_WP";
+ drive-strength = <MTK_DRIVE_8mA>;
+ bias-pull-up = <MTK_PUPD_SET_R1R0_11>;
+ };
+
+ conf-pd {
+ pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO";
+ drive-strength = <MTK_DRIVE_8mA>;
+ bias-pull-down = <MTK_PUPD_SET_R1R0_11>;
+ };
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pins>;
+ status = "okay";
+};
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_pins>;
+ status = "okay";
+};
+
+&usb_phy {
+ status = "okay";
+};
+
+&xhci {
+ mediatek,u3p-dis-msk = <0x0>;
+ phys = <&u2port0 PHY_TYPE_USB2>,
+ <&u3port0 PHY_TYPE_USB3>;
+ status = "okay";
+ vusb33-supply = <®_3p3v>;
+ vbus-supply = <®_5v>;
+};