ramips: add support for zbt-wg108

Specification:

CPU: MediaTek MT7621 (880 MHz)
Flash size: 32 MB NOR SPI
RAM size: 128 MB
Bootloader: U-Boot
Wireless: MT7612EN 2x2 802.11an+ac(2.4 GHz)
Wireless: MT7603EN 2x2 bgn
Ethernet: 1 x WAN (10/100/1000Mbps) and 4 x LAN (10/100/1000 Mbps)
Others: USB 2.0, micro SD slot, reset button and 8 x LEDs

Co-authored-by: Mishar <Mishar@Mishar.com>

target/linux/ramips/dts/mt7621_zbtlink_zbt-wg108.dts

@@ -0,0 +1,134 @@
+/dts-v1/;
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	compatible = "zbtlink,zbt-wg108", "mediatek,mt7621-soc";
+	model = "Zbtlink ZBT-WG108";
+
+	aliases {
+		label-mac-device = &wifi1;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+};
+
+&state_default {
+	gpio {
+		groups = "wdt";
+		function = "gpio";
+	};
+};
+
+&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 0x30000>;
+				read-only;
+			};
+
+			partition@30000 {
+				label = "u-boot-env";
+				reg = <0x30000 0x10000>;
+				read-only;
+			};
+
+			factory: partition@40000 {
+				label = "factory";
+				reg = <0x40000 0x10000>;
+				read-only;
+			};
+
+			partition@50000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x50000 0xfb0000>;
+			};
+		};
+	};
+};
+
+&gmac0 {
+	mtd-mac-address = <&factory 0xe000>;
+};
+
+&switch0 {
+	ports {
+		port@0 {
+			status = "okay";
+			label = "lan1";
+		};
+
+		port@1 {
+			status = "okay";
+			label = "lan2";
+		};
+
+		port@2 {
+			status = "okay";
+			label = "lan3";
+		};
+
+		port@3 {
+			status = "okay";
+			label = "lan4";
+		};
+
+		port@4 {
+			status = "okay";
+			label = "wan";
+			mtd-mac-address = <&factory 0xe006>;
+		};
+	};
+};
+
+&pcie {
+	status = "okay";
+};
+
+&pcie0 {
+	wifi0: mt76@0,0 {
+		reg = <0x0000 0 0 0 0>;
+		mediatek,mtd-eeprom = <&factory 0x8000>;
+		ieee80211-freq-limit = <5000000 6000000>;
+	};
+};
+
+&pcie1 {
+	wifi1: mt76@0,0 {
+		reg = <0x0000 0 0 0 0>;
+		mediatek,mtd-eeprom = <&factory 0x0000>;
+		ieee80211-freq-limit = <2400000 2500000>;
+	};
+};
+
+&sdhci {
+	status = "okay";
+};

target/linux/ramips/image/mt7621.mk

@@ -1248,6 +1248,15 @@ define Device/zbtlink_zbt-we1326
 endef
 TARGET_DEVICES += zbtlink_zbt-we1326
 
+define Device/zbtlink_zbt-wg108
+  IMAGE_SIZE := 32448k
+  DEVICE_VENDOR := Zbtlink
+  DEVICE_MODEL := ZBT-WG108
+  DEVICE_PACKAGES := kmod-mt7603 kmod-mt76x2 kmod-usb2 kmod-sdhci-mt7620
+  SUPPORTED_DEVICES += zbt-wg108
+endef
+TARGET_DEVICES += zbtlink_zbt-wg108
+
 define Device/zbtlink_zbt-we3526
   IMAGE_SIZE := 16064k
   DEVICE_VENDOR := Zbtlink

target/linux/ramips/mt7621/base-files/etc/board.d/02_network

@@ -184,6 +184,7 @@ ramips_setup_macs()
 	wavlink,wl-wn531a6|\
 	winstars,ws-wn583a6|\
 	zbtlink,zbt-we1326|\
+	zbtlink,zbt-wg108|\
 	zbtlink,zbt-wg3526-16m|\
 	zbtlink,zbt-wg3526-32m)
 		label_mac=$(mtd_get_mac_binary factory 0x4)