ramips: add support for Zbtlink ZBT-WG108

Specification:

CPU: MediaTek MT7621 (880 MHz)
Flash size: 16 MB NOR SPI
RAM size: 128 MB
Bootloader: Breed
Wireless: MT7612EN 2x2 802.11an+ac(5 GHz)
Wireless: MT7603EN 2x2 bgn(2.4 GHz)
Ethernet: 1 x WAN (10/100/1000Mbps) and 4 x LAN (10/100/1000 Mbps)
USB: 1x 2.0 Type-A port
External storage: 1x microSD (SDXC) slot
UART: console (115200 baud)
LEDs: Power, Wan, Lan 1-4, WiFi 2.4G, WiFi 5G
Buttons: Reset

How to install:
The original firmware is OpenWrt, so sysupgrade can be used.

Signed-off-by: Nickolay Goppen <setotau@mainlining.org>
Link: https://github.com/openwrt/openwrt/pull/19966
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

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

@@ -0,0 +1,181 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+/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";
+
+	m25p80@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;
+			};
+
+			partition@40000 {
+				label = "factory";
+				reg = <0x40000 0x10000>;
+				read-only;
+
+				nvmem-layout {
+					compatible = "fixed-layout";
+					#address-cells = <1>;
+					#size-cells = <1>;
+
+					eeprom_factory_0: eeprom@0 {
+						reg = <0x0 0x400>;
+					};
+
+					eeprom_factory_8000: eeprom@8000 {
+						reg = <0x8000 0x200>;
+					};
+
+					macaddr_factory_e000: macaddr@e000 {
+						reg = <0xe000 0x6>;
+					};
+
+					macaddr_factory_e006: macaddr@e006 {
+						reg = <0xe006 0x6>;
+					};
+				};
+			};
+
+			partition@50000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x50000 0xfb0000>;
+			};
+		};
+	};
+};
+
+&gmac0 {
+	nvmem-cells = <&macaddr_factory_e000>;
+	nvmem-cell-names = "mac-address";
+};
+
+&gmac1 {
+	status = "okay";
+	label = "wan";
+	phy-handle = <&ethphy4>;
+
+	nvmem-cells = <&macaddr_factory_e006>;
+	nvmem-cell-names = "mac-address";
+};
+
+&ethphy4 {
+	/delete-property/ interrupts;
+};
+
+&pcie {
+	status = "okay";
+};
+
+&pcie0 {
+	wifi0: wifi@0,0 {
+		compatible = "mediatek,mt76";
+		reg = <0x0000 0 0 0 0>;
+		nvmem-cells = <&eeprom_factory_8000>;
+		nvmem-cell-names = "eeprom";
+		ieee80211-freq-limit = <5000000 6000000>;
+
+		led {
+			led-sources = <2>;
+			led-active-low;
+		};
+	};
+};
+
+&pcie1 {
+	wifi1: wifi@0,0 {
+		compatible = "mediatek,mt76";
+		reg = <0x0000 0 0 0 0>;
+		nvmem-cells = <&eeprom_factory_0>;
+		nvmem-cell-names = "eeprom";
+		ieee80211-freq-limit = <2400000 2500000>;
+
+		led {
+			led-sources = <0>;
+			led-active-low;
+		};
+	};
+};
+
+&sdhci {
+	status = "okay";
+};
+
+&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";
+		};
+	};
+};
+

target/linux/ramips/image/mt7621.mk

@@ -3478,6 +3478,16 @@ define Device/zbtlink_zbt-we3526
 endef
 TARGET_DEVICES += zbtlink_zbt-we3526
 
+define Device/zbtlink_zbt-wg108
+  IMAGE_SIZE := 16064k
+  DEVICE_VENDOR := Zbtlink
+  DEVICE_MODEL := ZBT-WG108
+  DEVICE_PACKAGES := kmod-mt7603 kmod-mt76x2 kmod-usb2 kmod-usb3 \
+	kmod-mmc-mtk -uboot-envtools
+  SUPPORTED_DEVICES += zbt-wg108
+endef
+TARGET_DEVICES += zbtlink_zbt-wg108
+
 define Device/zbtlink_zbt-wg1602-16m
   $(Device/dsa-migration)
   $(Device/uimage-lzma-loader)

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

@@ -203,6 +203,7 @@ ramips_setup_macs()
 	wavlink,wl-wn533a8|\
 	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)