ramips: add support for Youku X2

Specifications:
  SOC:      MT7620AN + MT7612EN
  RAM:      128 MiB DDR2
  Flash:    16 MiB (Winbond W25Q28FVFG)
  WLAN:     2.4G + 5G
  LAN:      LAN ports *2
  WAN:      WAN port *1
  USB:      USB2.0 *1
  SD Card:  MicroSD *1
  Buttons:  Reset *1
  LEDs: ethernet *3, system, usb, wlan2g, wlan5g

MAC Address:
  use        address               source
  label      54:36:9b:xx:xx:ac     lan
  lan        54:36:9b:xx:xx:ac     factory.0x0028
  wan        54:36:9b:xx:xx:ad     factory.0x002e
  wlan2g     54:36:9b:xx:xx:ae     factory.0x0004
  wlan5g     54:36:9b:xx:xx:af     factory.0x8004

Installation:
1. Apply initramfs-kernel.bin in stock firmware Web UI.
2. Install sysupgrade.bin on OpenWrt and do not retain any configuration.

Signed-off-by: Shiji Yang <yangshiji66@qq.com>

target/linux/ramips/dts/mt7620a_youku_x2.dts

@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7620a_youku_yk-l1.dtsi"
+
+/ {
+	compatible = "youku,x2", "ralink,mt7620a-soc";
+	model = "Youku X2";
+};
+
+&ethernet {
+	mediatek,portmap = "wllll";
+};
+
+&firmware {
+	reg = <0x50000 0xfb0000>;
+};
+
+&led_wlan {
+	linux,default-trigger = "phy1tpt";
+};
+
+&pcie {
+	status = "okay";
+};
+
+&pcie0 {
+	wifi@0,0 {
+		compatible = "mediatek,mt76";
+		reg = <0x0000 0 0 0 0>;
+		mediatek,mtd-eeprom = <&factory 0x8000>;
+		ieee80211-freq-limit = <5000000 6000000>;
+
+		led {
+			led-sources = <2>;
+			led-active-low;
+		};
+	};
+};

target/linux/ramips/dts/mt7620a_youku_yk-l1.dtsi

@@ -15,7 +15,7 @@
 	leds {
 		compatible = "gpio-leds";
 
-		wlan {
+		led_wlan: wlan {
 			label = "blue:wlan";
 			gpios = <&gpio3 0 GPIO_ACTIVE_LOW>;
 			linux,default-trigger = "phy0tpt";

target/linux/ramips/image/mt7620.mk

@@ -1273,6 +1273,18 @@ define Device/xiaomi_miwifi-mini
 endef
 TARGET_DEVICES += xiaomi_miwifi-mini
 
+define Device/youku_x2
+  SOC := mt7620a
+  IMAGE_SIZE := 16064k
+  DEVICE_VENDOR := Youku
+  DEVICE_MODEL := X2
+  DEVICE_PACKAGES := kmod-mt76x2 kmod-usb2 kmod-usb-ohci \
+	kmod-sdhci-mt7620 kmod-usb-ledtrig-usbport
+  UIMAGE_MAGIC := 0x12291000
+  UIMAGE_NAME := 400000000000000000001000
+endef
+TARGET_DEVICES += youku_x2
+
 define Device/youku_yk-l1
   SOC := mt7620a
   IMAGE_SIZE := 32448k

target/linux/ramips/mt7620/base-files/etc/board.d/02_network

@@ -237,6 +237,10 @@ ramips_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"5:lan" "4:wan" "6@eth0"
 		;;
+	youku,x2)
+		ucidef_add_switch "switch0" \
+			"1:lan:2" "4:lan:1" "0:wan" "6@eth0"
+		;;
 	youku,yk-l1|\
 	youku,yk-l1c)
 		ucidef_add_switch "switch0" \
@@ -368,6 +372,7 @@ ramips_setup_macs()
 	ohyeah,oy-0001|\
 	wavlink,wl-wn530hg4|\
 	wevo,air-duo|\
+	youku,x2|\
 	youku,yk-l1|\
 	youku,yk-l1c)
 		wan_mac=$(mtd_get_mac_binary factory 0x2e)