--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "rtl930x.dtsi"
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+ compatible = "xikestor,sks7300-4x4t", "realtek,rtl9303-soc";
+ model = "XikeStor SKS7300-4X4T";
+
+ aliases {
+ label-mac-device = ðernet0;
+ led-boot = &led_sys;
+ led-failsafe = &led_sys;
+ led-running = &led_sys;
+ led-upgrade = &led_sys;
+ };
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x00000000 0x10000000>, /* first 256 MiB */
+ <0x20000000 0x10000000>; /* remaining 256 MiB */
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ /* Silencing the kernel is required since otherwise the watchdog
+ would time out! */
+ bootargs = "quiet";
+ };
+
+ watchdog {
+ compatible = "linux,wdt-gpio";
+ gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;
+ hw_algo = "toggle";
+ hw_margin_ms = <1200>;
+ always-running;
+ };
+
+ keys {
+ compatible = "gpio-keys";
+
+ button-reset {
+ label = "reset";
+ gpios = <&gpio0 17 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_RESTART>;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinmux_enable_led_sync>, <&pinmux_disable_sys_led>;
+
+ led_sys: led-0 {
+ color = <LED_COLOR_ID_GREEN>;
+ function = LED_FUNCTION_STATUS;
+ gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "heartbeat";
+ };
+ };
+
+ led_set {
+ compatible = "realtek,rtl9300-leds";
+ active-low;
+
+ /* [Amber] [Green] */
+ led_set0 = <(RTL93XX_LED_SET_5G | RTL93XX_LED_SET_2P5G | RTL93XX_LED_SET_1G |
+ RTL93XX_LED_SET_100M | RTL93XX_LED_SET_10M | RTL93XX_LED_SET_LINK |
+ RTL93XX_LED_SET_ACT)
+ (RTL93XX_LED_SET_10G | RTL93XX_LED_SET_LINK | RTL93XX_LED_SET_ACT)>;
+ };
+
+ i2c_gpio {
+ compatible = "i2c-gpio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ i2c-gpio,delay-us = <2>;
+ scl-gpios = <&gpio0 9 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ sda-gpios = <&gpio0 10 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+
+ temperature_sensor: temperature-sensor@48 {
+ compatible = "national,lm75";
+ reg = <0x48>;
+ #thermal-sensor-cells = <0>;
+ };
+ };
+
+ sfp0: sfp-p1 {
+ compatible = "sff,sfp";
+ i2c-bus = <&i2c2>;
+ los-gpio = <&gpio1 2 GPIO_ACTIVE_HIGH>;
+ mod-def0-gpio = <&gpio1 1 GPIO_ACTIVE_LOW>;
+ tx-disable-gpio = <&gpio1 0 GPIO_ACTIVE_HIGH>;
+ maximum-power-milliwatt = <1500>;
+ #thermal-sensor-cells = <0>;
+ };
+
+ sfp1: sfp-p2 {
+ compatible = "sff,sfp";
+ i2c-bus = <&i2c3>;
+ los-gpio = <&gpio1 5 GPIO_ACTIVE_HIGH>;
+ mod-def0-gpio = <&gpio1 4 GPIO_ACTIVE_LOW>;
+ tx-disable-gpio = <&gpio1 3 GPIO_ACTIVE_HIGH>;
+ maximum-power-milliwatt = <1500>;
+ #thermal-sensor-cells = <0>;
+ };
+
+ sfp2: sfp-p3 {
+ compatible = "sff,sfp";
+ i2c-bus = <&i2c4>;
+ los-gpio = <&gpio1 8 GPIO_ACTIVE_HIGH>;
+ mod-def0-gpio = <&gpio1 7 GPIO_ACTIVE_LOW>;
+ tx-disable-gpio = <&gpio1 6 GPIO_ACTIVE_HIGH>;
+ maximum-power-milliwatt = <1500>;
+ #thermal-sensor-cells = <0>;
+ };
+
+ sfp3: sfp-p4 {
+ compatible = "sff,sfp";
+ i2c-bus = <&i2c6>;
+ los-gpio = <&gpio1 11 GPIO_ACTIVE_HIGH>;
+ mod-def0-gpio = <&gpio1 10 GPIO_ACTIVE_LOW>;
+ tx-disable-gpio = <&gpio1 9 GPIO_ACTIVE_HIGH>;
+ maximum-power-milliwatt = <1500>;
+ #thermal-sensor-cells = <0>;
+ };
+};
+
+&i2c_mst1 {
+ status = "okay";
+
+ i2c2: i2c@2 {
+ reg = <2>;
+ };
+ i2c3: i2c@3 {
+ reg = <3>;
+ };
+ i2c4: i2c@4 {
+ reg = <4>;
+ };
+ i2c6: i2c@6 {
+ reg = <6>;
+ };
+};
+
+&mdio_aux {
+ status = "okay";
+
+ gpio1: gpio@0 {
+ compatible = "realtek,rtl8231";
+ reg = <0>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&gpio1 0 0 37>;
+
+ led-controller {
+ compatible = "realtek,rtl8231-leds";
+ status = "disabled";
+ };
+ };
+};
+
+&spi0 {
+ status = "okay";
+
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <10000000>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "u-boot";
+ reg = <0x0 0xa0000>;
+ read-only;
+ };
+
+ partition@a0000 {
+ label = "u-boot-env";
+ reg = <0xa0000 0x10000>;
+
+ nvmem-layout {
+ compatible = "u-boot,env";
+
+ macaddr_ubootenv_ethaddr: ethaddr {
+ #nvmem-cell-cells = <1>;
+ };
+ };
+ };
+
+ partition@b0000 {
+ label = "reserve";
+ reg = <0xb0000 0x80000>;
+ read-only;
+ };
+
+ partition@130000 {
+ label = "config";
+ reg = <0x130000 0x350000>;
+ read-only;
+ };
+
+ partition@480000 {
+ label = "firmware";
+ reg = <0x480000 0x1b80000>;
+
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "kernel";
+ reg = <0x0 0x800000>;
+ };
+
+ partition@800000 {
+ label = "rootfs";
+ reg = <0x800000 0x1380000>;
+ };
+ };
+ };
+ };
+};
+
+ðernet0 {
+ nvmem-cells = <&macaddr_ubootenv_ethaddr 0>;
+ nvmem-cell-names = "mac-address";
+};
+
+&mdio_bus0 {
+ PHY_C45(24, 0)
+};
+
+&mdio_bus1 {
+ PHY_C45(25, 0)
+};
+
+&mdio_bus2 {
+ PHY_C45(26, 0)
+ PHY_C45(27, 1)
+};
+
+&switch0 {
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ SWITCH_PORT_SFP(0, 1, 2, 0, 0)
+ SWITCH_PORT_SFP(8, 2, 3, 0, 1)
+ SWITCH_PORT_SFP(16, 3, 4, 0, 2)
+ SWITCH_PORT_SFP(20, 4, 5, 0, 3)
+
+ SWITCH_PORT_SDS(24, 8, 6, usxgmii)
+ SWITCH_PORT_SDS(25, 7, 7, usxgmii)
+ SWITCH_PORT_SDS(26, 6, 8, usxgmii)
+ SWITCH_PORT_SDS(27, 5, 9, usxgmii)
+
+ port@28 {
+ ethernet = <ðernet0>;
+ reg = <28>;
+ phy-mode = "internal";
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+ };
+};
+
+&thermal_zones {
+ sys-thermal {
+ polling-delay-passive = <1000>;
+ polling-delay = <1000>;
+ thermal-sensors = <&temperature_sensor>;
+ trips {
+ sys-crit {
+ temperature = <70000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+ };
+};