diff --git a/target/linux/ath79/base-files/etc/board.d/01_leds b/target/linux/ath79/base-files/etc/board.d/01_leds
index 9894adfb7a..9a4e9593fe 100755
--- a/target/linux/ath79/base-files/etc/board.d/01_leds
+++ b/target/linux/ath79/base-files/etc/board.d/01_leds
@@ -178,6 +178,18 @@ tplink,tl-mr3040-v2|\
 tplink,tl-wa860re-v1)
 	ucidef_set_led_netdev "lan" "LAN" "tp-link:green:lan" "eth0"
 	;;
+tplink,tl-mr3420-v2|\
+tplink,tl-wr740n-v4|\
+tplink,tl-wr740n-v5|\
+tplink,tl-wr741nd-v4|\
+tplink,tl-wr841-v8|\
+tplink,tl-wr842n-v2)
+	ucidef_set_led_netdev "wan" "WAN" "tp-link:green:wan" "eth1"
+	ucidef_set_led_switch "lan1" "LAN1" "tp-link:green:lan1" "switch0" "0x04"
+	ucidef_set_led_switch "lan2" "LAN2" "tp-link:green:lan2" "switch0" "0x08"
+	ucidef_set_led_switch "lan3" "LAN3" "tp-link:green:lan3" "switch0" "0x10"
+	ucidef_set_led_switch "lan4" "LAN4" "tp-link:green:lan4" "switch0" "0x02"
+	;;
 tplink,tl-wa850re-v1)
 	ucidef_set_led_netdev "lan" "LAN" "tp-link:blue:lan" "eth0"
 	ucidef_set_rssimon "wlan0" "200000" "1"
@@ -199,17 +211,6 @@ tplink,tl-wr941-v4)
 	ucidef_set_led_switch "lan3" "LAN3" "tp-link:green:lan3" "switch0" "0x08"
 	ucidef_set_led_switch "lan4" "LAN4" "tp-link:green:lan4" "switch0" "0x10"
 	;;
-tplink,tl-wr740n-v4|\
-tplink,tl-wr740n-v5|\
-tplink,tl-wr741nd-v4|\
-tplink,tl-wr841-v8|\
-tplink,tl-wr842n-v2)
-	ucidef_set_led_netdev "wan" "WAN" "tp-link:green:wan" "eth1"
-	ucidef_set_led_switch "lan1" "LAN1" "tp-link:green:lan1" "switch0" "0x04"
-	ucidef_set_led_switch "lan2" "LAN2" "tp-link:green:lan2" "switch0" "0x08"
-	ucidef_set_led_switch "lan3" "LAN3" "tp-link:green:lan3" "switch0" "0x10"
-	ucidef_set_led_switch "lan4" "LAN4" "tp-link:green:lan4" "switch0" "0x02"
-	;;
 tplink,tl-wr940n-v3|\
 tplink,tl-wr940n-v4|\
 tplink,tl-wr941nd-v6)
diff --git a/target/linux/ath79/base-files/etc/board.d/02_network b/target/linux/ath79/base-files/etc/board.d/02_network
index 2c1f2a90d7..c48111d5a1 100755
--- a/target/linux/ath79/base-files/etc/board.d/02_network
+++ b/target/linux/ath79/base-files/etc/board.d/02_network
@@ -228,6 +228,16 @@ ath79_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"0@eth0" "2:lan:3" "3:lan:2" "4:lan:1" "1:wan"
 		;;
+	tplink,tl-mr3420-v2|\
+	tplink,tl-wr740n-v4|\
+	tplink,tl-wr740n-v5|\
+	tplink,tl-wr741nd-v4|\
+	tplink,tl-wr841-v8|\
+	tplink,tl-wr842n-v2)
+		ucidef_set_interface_wan "eth1"
+		ucidef_add_switch "switch0" \
+			"0@eth0" "1:lan:4" "2:lan:1" "3:lan:2" "4:lan:3"
+		;;
 	tplink,tl-wr1043nd-v1)
 		ucidef_add_switch "switch0" \
 			"1:lan" "2:lan" "3:lan" "4:lan" "0:wan" "5@eth0"
@@ -241,15 +251,6 @@ ath79_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"1:lan" "2:lan" "3:lan" "4:lan" "0:wan" "9@eth0"
 		;;
-	tplink,tl-wr740n-v4|\
-	tplink,tl-wr740n-v5|\
-	tplink,tl-wr741nd-v4|\
-	tplink,tl-wr841-v8|\
-	tplink,tl-wr842n-v2)
-		ucidef_set_interface_wan "eth1"
-		ucidef_add_switch "switch0" \
-			"0@eth0" "1:lan:4" "2:lan:1" "3:lan:2" "4:lan:3"
-		;;
 	tplink,tl-wr941-v2)
 		ucidef_set_interfaces_lan_wan "lan1 lan2 lan3 lan4" "wan"
 		;;
diff --git a/target/linux/ath79/dts/ar9341_tplink_tl-mr3420-v2.dts b/target/linux/ath79/dts/ar9341_tplink_tl-mr3420-v2.dts
new file mode 100644
index 0000000000..f1429f31d3
--- /dev/null
+++ b/target/linux/ath79/dts/ar9341_tplink_tl-mr3420-v2.dts
@@ -0,0 +1,194 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+#include "ar9341.dtsi"
+
+/ {
+	model = "TP-Link TL-MR3420 v2";
+	compatible = "tplink,tl-mr3420-v2", "qca,ar9341";
+
+	aliases {
+		serial0 = &uart;
+		led-boot = &system;
+		led-failsafe = &system;
+		led-running = &system;
+		led-upgrade = &system;
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "Reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
+			debounce-interval = <60>;
+		};
+
+		rfkill {
+			label = "WiFi";
+			linux,code = <KEY_RFKILL>;
+			gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;
+			debounce-interval = <60>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		system: power {
+			label = "tp-link:green:power";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+		};
+
+		wlan {
+			label = "tp-link:green:wlan";
+			gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0tpt";
+		};
+
+		qss {
+			label = "tp-link:green:qss";
+			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+		};
+
+		wan {
+			label = "tp-link:green:wan";
+			gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+		};
+
+		lan1 {
+			label = "tp-link:green:lan1";
+			gpios = <&gpio 19 GPIO_ACTIVE_LOW>;
+		};
+
+		lan2 {
+			label = "tp-link:green:lan2";
+			gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
+		};
+
+		lan3 {
+			label = "tp-link:green:lan3";
+			gpios = <&gpio 21 GPIO_ACTIVE_LOW>;
+		};
+
+		lan4 {
+			label = "tp-link:green:lan4";
+			gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+		};
+
+		usb {
+			label = "tp-link:green:usb";
+			gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
+			trigger-sources = <&hub_port>;
+			linux,default-trigger = "usbport";
+		};
+	};
+};
+
+&ref {
+	clock-frequency = <25000000>;
+};
+
+&uart {
+	status = "okay";
+};
+
+&gpio {
+	pinctrl-names = "default";
+	pinctrl-0 = <&jtag_disable_pins &pmx_usb_power>;
+
+	usb_power {
+		gpio-hog;
+		gpios = <4 GPIO_ACTIVE_HIGH>;
+		output-high;
+		line-name = "tp-link:power:usb";
+	};
+};
+
+&pinmux {
+	pmx_usb_power: usb_power {
+		pinctrl-single,bits = <0x4 0x0 0xff>;
+	};
+};
+
+&spi {
+	num-cs = <1>;
+
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <25000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			uboot: partition@0 {
+				label = "u-boot";
+				reg = <0x000000 0x020000>;
+				read-only;
+			};
+
+			partition@20000 {
+				compatible = "tplink,firmware";
+				label = "firmware";
+				reg = <0x020000 0x3d0000>;
+			};
+
+			art: partition@3f0000 {
+				label = "art";
+				reg = <0x3f0000 0x010000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	phy-handle = <&swphy0>;
+	mtd-mac-address = <&uboot 0x1fc00>;
+	mtd-mac-address-increment = <(-1)>;
+};
+
+&eth1 {
+	status = "okay";
+
+	mtd-mac-address = <&uboot 0x1fc00>;
+
+	gmac-config {
+		device = <&gmac>;
+		switch-phy-swap = <1>;
+	};
+};
+
+&wmac {
+	status = "okay";
+
+	mtd-cal-data = <&art 0x1000>;
+	mtd-mac-address = <&uboot 0x1fc00>;
+};
+
+&usb {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	hub_port: port@1 {
+		reg = <1>;
+		#trigger-source-cells = <0>;
+	};
+};
+
+&usb_phy {
+	status = "okay";
+};
diff --git a/target/linux/ath79/image/tiny-tp-link.mk b/target/linux/ath79/image/tiny-tp-link.mk
index 43be61368b..da5fb53d21 100644
--- a/target/linux/ath79/image/tiny-tp-link.mk
+++ b/target/linux/ath79/image/tiny-tp-link.mk
@@ -51,6 +51,16 @@ define Device/tplink_tl-mr3420-v1
 endef
 TARGET_DEVICES += tplink_tl-mr3420-v1
 
+define Device/tplink_tl-mr3420-v2
+  $(Device/tplink-4mlzma)
+  ATH_SOC := ar9341
+  DEVICE_TITLE := TP-Link TL-MR3420 v2
+  TPLINK_HWID := 0x34200002
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport
+  SUPPORTED_DEVICES += tl-mr3420-v2
+endef
+TARGET_DEVICES += tplink_tl-mr3420-v2
+
 define Device/tplink_tl-wa850re-v1
   $(Device/tplink-4mlzma)
   ATH_SOC := ar9341