--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+ compatible = "sercomm,na502s", "mediatek,mt7621-soc";
+ model = "SERCOMM NA502S";
+
+ aliases {
+ led-boot = &led_power;
+ led-failsafe = &led_power;
+ led-running = &led_power;
+ led-upgrade = &led_power;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led_power: power {
+ label = "green:power";
+ gpios = <&gpio 0 GPIO_ACTIVE_LOW>;
+ };
+
+ wifi {
+ label = "green:wifi";
+ gpios = <&gpio_expander1 0 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "phy0tpt";
+ };
+
+ zwave {
+ label = "green:zwave";
+ gpios = <&gpio_expander1 1 GPIO_ACTIVE_LOW>;
+ };
+
+ zigbee {
+ label = "green:zigbee";
+ gpios = <&gpio_expander1 2 GPIO_ACTIVE_LOW>;
+ };
+
+ bluetooth {
+ label = "green:bluetooth";
+ gpios = <&gpio_expander1 3 GPIO_ACTIVE_LOW>;
+ };
+
+ rf433 {
+ label = "green:rf433";
+ gpios = <&gpio_expander1 4 GPIO_ACTIVE_LOW>;
+ };
+
+ service {
+ label = "green:service";
+ gpios = <&gpio_expander1 5 GPIO_ACTIVE_LOW>;
+ };
+
+ 3g {
+ label = "green:3g";
+ gpios = <&gpio_expander1 6 GPIO_ACTIVE_LOW>;
+ };
+
+ voice {
+ label = "green:voice";
+ gpios = <&gpio_expander1 7 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ keys {
+ compatible = "gpio-keys";
+
+ battery_tamper {
+ label = "battery_tamper";
+ gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;
+ linux,code = <BTN_1>;
+ };
+
+ reset {
+ label = "reset";
+ gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_RESTART>;
+ };
+
+ voice {
+ label = "voice";
+ gpios = <&gpio 29 GPIO_ACTIVE_LOW>;
+ linux,code = <BTN_0>;
+ };
+
+ select {
+ label = "select";
+ gpios = <&gpio 31 GPIO_ACTIVE_LOW>;
+ linux,code = <BTN_1>;
+ };
+
+ sync {
+ label = "sync";
+ gpios = <&gpio 32 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_RFKILL>;
+ };
+ };
+
+ gpio-export {
+ compatible = "gpio-export";
+
+ zwave_reset {
+ gpio-export,name = "zwave_reset";
+ gpio-export,output = <1>;
+ gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+ };
+
+ lprf_reset {
+ gpio-export,name = "lprf_reset";
+ gpio-export,output = <1>;
+ gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+ };
+
+ charger_detect {
+ gpio-export,name = "charger_detect";
+ gpios = <&gpio 15 GPIO_ACTIVE_HIGH>;
+ };
+
+ buzzer {
+ gpio-export,name = "buzzer";
+ gpio-export,output = <0>;
+ gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
+ };
+
+ 3g_hw_shunt_en {
+ gpio-export,name = "3g_hw_shunt_en";
+ gpio-export,output = <0>;
+ gpios = <&gpio 22 GPIO_ACTIVE_LOW>;
+ };
+
+ 3g_sw_on_off {
+ gpio-export,name = "3g_sw_on_off";
+ gpio-export,output = <1>;
+ gpios = <&gpio 23 GPIO_ACTIVE_LOW>;
+ };
+
+ 3g_wake_up {
+ gpio-export,name = "3g_wake_up";
+ gpio-export,output = <0>;
+ gpios = <&gpio 30 GPIO_ACTIVE_LOW>;
+ };
+
+ 3g_hw_reset {
+ gpio-export,name = "3g_hw_reset";
+ gpio-export,output = <1>;
+ gpios = <&gpio 33 GPIO_ACTIVE_LOW>;
+ };
+
+ zigbee_reset {
+ gpio-export,name = "zigbee_reset";
+ gpio-export,output = <1>;
+ gpios = <&gpio_expander0 0 GPIO_ACTIVE_LOW>;
+ };
+
+ zigbee_boot {
+ gpio-export,name = "zigbee_boot";
+ gpio-export,output = <1>;
+ gpios = <&gpio_expander0 1 GPIO_ACTIVE_LOW>;
+ };
+
+ 2g_sw0 {
+ gpio-export,name = "2g_sw0";
+ gpio-export,output = <1>;
+ gpios = <&gpio_expander0 2 GPIO_ACTIVE_LOW>;
+ };
+
+ 2g_sw1 {
+ gpio-export,name = "2g_sw1";
+ gpio-export,output = <1>;
+ gpios = <&gpio_expander0 3 GPIO_ACTIVE_LOW>;
+ };
+
+ fm2018_pwd {
+ gpio-export,name = "fm2018_pwd";
+ gpio-export,output = <1>;
+ gpios = <&gpio_expander0 4 GPIO_ACTIVE_LOW>;
+ };
+
+ fm2018_reset {
+ gpio-export,name = "fm2018_reset";
+ gpio-export,output = <1>;
+ gpios = <&gpio_expander0 5 GPIO_ACTIVE_LOW>;
+ };
+
+ batt_teset {
+ gpio-export,name = "batt_test";
+ gpio-export,output = <1>;
+ gpios = <&gpio_expander0 6 GPIO_ACTIVE_LOW>;
+ };
+
+ mfi_reset {
+ gpio-export,name = "mfi_reset";
+ gpio-export,output = <1>;
+ gpios = <&gpio_expander0 7 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+ðernet {
+ pinctrl-0 = <&mdio_pins>, <&rgmii1_pins>;
+};
+
+&gmac0 {
+ nvmem-cells = <&macaddr_factory_e000>;
+ nvmem-cell-names = "mac-address";
+};
+
+&nand {
+ status = "okay";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "u-boot";
+ reg = <0x0 0x80000>;
+ read-only;
+ };
+
+ partition@80000 {
+ label = "config";
+ reg = <0x80000 0x80000>;
+ read-only;
+ };
+
+ factory: partition@100000 {
+ label = "factory";
+ reg = <0x100000 0x40000>;
+ };
+
+ partition@140000 {
+ label = "kernel1";
+ reg = <0x140000 0x1400000>;
+ };
+
+ partition@1540000 {
+ label = "kernel";
+ reg = <0x1540000 0x400000>;
+ };
+
+ partition@1940000 {
+ label = "ubi";
+ reg = <0x1940000 0x1000000>;
+ };
+
+ partition@2940000 {
+ label = "user_storage";
+ reg = <0x2940000 0x100000>;
+ };
+
+ partition@2a40000 {
+ label = "data";
+ reg = <0x2a40000 0x1000000>;
+ };
+
+ partition@3a40000 {
+ label = "storage";
+ reg = <0x3a40000 0x3200000>;
+ };
+
+ partition@6c40000 {
+ label = "backup";
+ reg = <0x6c40000 0x1340000>;
+ };
+ };
+};
+
+&pcie {
+ status = "okay";
+};
+
+&pcie0 {
+ wifi@0,0 {
+ compatible = "mediatek,mt76";
+ reg = <0x0000 0 0 0 0>;
+ mediatek,mtd-eeprom = <&factory 0x8000>;
+ nvmem-cells = <&macaddr_factory_e000>;
+ nvmem-cell-names = "mac-address";
+ mac-address-increment = <1>;
+ ieee80211-freq-limit = <5000000 6000000>;
+ };
+};
+
+&pcie1 {
+ wifi@0,0 {
+ compatible = "mediatek,mt76";
+ reg = <0x0 0 0 0 0>;
+ mediatek,mtd-eeprom = <&factory 0x0000>;
+ nvmem-cells = <&macaddr_factory_e000>;
+ nvmem-cell-names = "mac-address";
+ mac-address-increment = <2>;
+ ieee80211-freq-limit = <2400000 2500000>;
+ };
+};
+
+&state_default {
+ gpio {
+ groups = "jtag", "rgmii2";
+ function = "gpio";
+ };
+};
+
+&i2c {
+ status = "okay";
+
+ /* This GPIO expander is fake. The kernel fails to initialize the
+ first expander, but succeeds on the second (real) one */
+ gpio_expander2: gpio-expander2@22 {
+ #gpio-cells = <2>;
+ #interrupt-cells = <2>;
+ compatible = "semtech,sx1502q";
+ reg = <0x22>;
+
+ gpio-controller;
+ };
+
+ gpio_expander0: gpio-expander0@20 {
+ #gpio-cells = <2>;
+ #interrupt-cells = <2>;
+ compatible = "semtech,sx1502q";
+ reg = <0x20>;
+
+ gpio-controller;
+ };
+
+ gpio_expander1: gpio-expander1@21 {
+ #gpio-cells = <2>;
+ #interrupt-cells = <2>;
+ compatible = "semtech,sx1502q";
+ reg = <0x21>;
+
+ gpio-controller;
+ };
+};
+
+&switch0 {
+ ports {
+ port@4 {
+ status = "okay";
+ label = "lan";
+ };
+ };
+};
+
+&uartlite2 {
+ status = "okay";
+};
+
+&factory {
+ compatible = "nvmem-cells";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ macaddr_factory_e000: macaddr@e000 {
+ reg = <0xe000 0x6>;
+ };
+};