ramips: add support for JDCloud RE-CP-02

- Soc: MediaTek MT7621AT
- RAM: 512 MB (DDR3)
- Flash: 16 MB (SPI NOR)
- WiFi: MediaTek MT7905DAN, MediaTek MT7975DN
- Ethernet: 1 WAN, 3 LAN (Gigabit)
- Buttons: Reset, Joylink
- LEDs: (red, blue, green), routed to one indicator in the top of the
  device
- Power: DC 12V 1A tip positive
- 1 TF Card Slot

Co-Authored-By: Jianti Chen <clbcjt@outlook.com>
Signed-off-by: Sheng Huang <shenghuang147@gmail.com>

target/linux/ramips/dts/mt7621_jdcloud_re-cp-02.dts

@@ -0,0 +1,160 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	compatible = "jdcloud,re-cp-02", "mediatek,mt7621-soc";
+	model = "JDCloud RE-CP-02";
+
+	aliases {
+		label-mac-device = &gmac0;
+		led-boot = &led_status_blue;
+		led-failsafe = &led_status_red;
+		led-running = &led_status_green;
+		led-upgrade = &led_status_blue;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_status_red: red {
+			label = "red:status";
+			gpios = <&gpio 6 GPIO_ACTIVE_LOW>;
+		};
+
+		led_status_blue: blue {
+			label = "blue:status";
+			gpios = <&gpio 7 GPIO_ACTIVE_LOW>;
+		};
+
+		led_status_green: green {
+			label = "green:status";
+			gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		wps {
+			label = "wps";
+			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+
+		reset {
+			label = "reset";
+			gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+};
+
+&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 0x40000>;
+				read-only;
+			};
+
+			partition@40000 {
+				compatible = "u-boot,env";
+				label = "Config";
+				reg = <0x40000 0x10000>;
+			};
+
+			factory: partition@50000 {
+				label = "Factory";
+				reg = <0x50000 0x40000>;
+				read-only;
+			};
+
+			partition@90000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x90000 0xf70000>;
+			};
+		};
+	};
+};
+
+&state_default {
+	gpio {
+		groups = "uart3", "jtag", "wdt";
+		function = "gpio";
+	};
+};
+
+&sdhci {
+	status = "okay";
+};
+
+&pcie {
+	status = "okay";
+};
+
+&pcie1 {
+	wifi@0,0 {
+		compatible = "mediatek,mt76";
+		reg = <0x0000 0 0 0 0>;
+		mediatek,mtd-eeprom = <&factory 0x0>;
+		mediatek,disable-radar-background;
+	};
+};
+
+&gmac0 {
+	mtd-mac-address = <&factory 0x3fff4>;
+};
+
+&gmac1 {
+	mtd-mac-address = <&factory 0x3fffa>;
+	status = "okay";
+};
+
+&switch0 {
+	ports {
+		port@1 {
+			status = "okay";
+			label = "lan1";
+		};
+
+		port@2 {
+			status = "okay";
+			label = "lan2";
+		};
+
+		port@3 {
+			status = "okay";
+			label = "lan3";
+		};
+
+		port@4 {
+			status = "okay";
+			label = "wan";
+			mtd-mac-address = <&factory 0x3fffa>;
+		};
+	};
+};
+
+&xhci {
+	status = "disabled";
+};

target/linux/ramips/image/mt7621.mk

@@ -1030,6 +1030,15 @@ define Device/jcg_y2
 endef
 TARGET_DEVICES += jcg_y2
 
+define Device/jdcloud_re-cp-02
+  $(Device/dsa-migration)
+  IMAGE_SIZE := 16000k
+  DEVICE_VENDOR := JD-Cloud
+  DEVICE_MODEL := RE-CP-02
+  DEVICE_PACKAGES := kmod-mt7915-firmware kmod-sdhci-mt7620
+endef
+TARGET_DEVICES += jdcloud_re-cp-02
+
 define Device/jdcloud_re-sp-01b
   $(Device/dsa-migration)
   IMAGE_SIZE := 27328k

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

@@ -26,6 +26,7 @@ ramips_setup_interfaces()
 	h3c,tx1801-plus|\
 	h3c,tx1806|\
 	hiwifi,hc5962|\
+	jdcloud,re-cp-02|\
 	xiaomi,mi-router-3-pro)
 		ucidef_set_interfaces_lan_wan "lan1 lan2 lan3" "wan"
 		;;

target/linux/ramips/mt7621/base-files/etc/init.d/bootcount

@@ -13,6 +13,9 @@ boot() {
 			$((0xFF)) ]] || printf '\xff' | dd of=/dev/mtdblock3 count=1 \
 			bs=1 seek=$((0x20001))
 		;;
+	jdcloud,re-cp-02)
+		echo -e "bootcount 0\nbootlimit 5\nupgrade_available 1"  | /usr/sbin/fw_setenv -s -
+		;;
 	linksys,e5600|\
 	linksys,ea7300-v1|\
 	linksys,ea7300-v2|\