diff --git a/target/linux/ath79/dts/qca9531_compex_wpj531-16m.dts b/target/linux/ath79/dts/qca9531_compex_wpj531-16m.dts
new file mode 100644
index 00000000000..343a02e38ad
--- /dev/null
+++ b/target/linux/ath79/dts/qca9531_compex_wpj531-16m.dts
@@ -0,0 +1,141 @@
+// 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 "qca953x.dtsi"
+
+/ {
+	compatible = "compex,wpj531-16m", "qca,qca9531";
+	model = "Compex WPJ531 (16MB flash)";
+
+	aliases {
+		label-mac-device = &eth0;
+		led-boot = &led_sig4;
+		led-failsafe = &led_sig4;
+		led-running = &led_sig4;
+		led-upgrade = &led_sig4;
+	};
+
+	beeper {
+		compatible = "gpio-beeper";
+		gpios = <&gpio 4 GPIO_ACTIVE_HIGH>;
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinmux_led_eth_pins>;
+
+		sig1 {
+			label = "wpj531:red:sig1";
+			gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+		};
+
+		sig2 {
+			label = "wpj531:yellow:sig2";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+		};
+
+		sig3 {
+			label = "wpj531:green:sig3";
+			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+		};
+
+		led_sig4: sig4 {
+			label = "wpj531:green:sig4";
+			gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&uart {
+	status = "okay";
+};
+
+&pinmux {
+	pinmux_led_eth_pins: pinmux_led_eth_pins {
+		pinctrl-single,bits = <0x8 0x2b000000 0xff000000>, <0xc 0x00002d00 0x0000ff00>;
+	};
+};
+
+&spi {
+	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 0x030000>;
+				read-only;
+			};
+
+			partition@30000 {
+				label = "firmware";
+				reg = <0x030000 0xfc0000>;
+				compatible = "denx,uimage";
+			};
+
+			art: partition@ff0000 {
+				label = "art";
+				reg = <0xff0000 0x010000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&eth1 {
+	mtd-mac-address = <&uboot 0x2e018>;
+};
+
+&eth0 {
+	status = "okay";
+
+	phy-handle = <&swphy4>;
+
+	mtd-mac-address = <&uboot 0x2e010>;
+};
+
+&wmac {
+	status = "okay";
+
+	mtd-cal-data = <&art 0x1000>;
+};
+
+&pcie0 {
+	status = "okay";
+
+	wifi@0,0 {
+		compatible = "pci168c,003c";
+		reg = <0x0000 0 0 0 0>;
+	};
+};
+
+&usb_phy {
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+};
diff --git a/target/linux/ath79/generic/base-files/etc/board.d/01_leds b/target/linux/ath79/generic/base-files/etc/board.d/01_leds
index 398c9ed4953..aaa830c6eaa 100755
--- a/target/linux/ath79/generic/base-files/etc/board.d/01_leds
+++ b/target/linux/ath79/generic/base-files/etc/board.d/01_leds
@@ -115,6 +115,13 @@ engenius,ecb1750|\
 enterasys,ws-ap3705i)
 	ucidef_set_led_netdev "lan" "LAN" "$boardname:blue:lan" "eth0"
 	;;
+compex,wpj531-16m)
+	ucidef_set_rssimon "wlan0" "200000" "1"
+	ucidef_set_led_rssi "sig1" "SIG1" "wpj531:red:sig1" "wlan0" "85" "100"
+	ucidef_set_led_rssi "sig2" "SIG2" "wpj531:yellow:sig2" "wlan0" "75" "100"
+	ucidef_set_led_rssi "sig3" "SIG3" "wpj531:green:sig3" "wlan0" "65" "100"
+	ucidef_set_led_rssi "sig4" "SIG4" "wpj531:green:sig4" "wlan0" "50" "100"
+	;;
 devolo,magic-2-wifi)
 	ucidef_set_led_netdev "plcw" "dLAN" "devolo:white:dlan" "eth0.1" "rx"
 	;;
diff --git a/target/linux/ath79/generic/base-files/etc/board.d/02_network b/target/linux/ath79/generic/base-files/etc/board.d/02_network
index 4b74565aa32..d0e73a5d3f9 100755
--- a/target/linux/ath79/generic/base-files/etc/board.d/02_network
+++ b/target/linux/ath79/generic/base-files/etc/board.d/02_network
@@ -108,6 +108,7 @@ ath79_setup_interfaces()
 	comfast,cf-e110n-v2|\
 	comfast,cf-e120a-v3|\
 	comfast,cf-e314n-v2|\
+	compex,wpj531-16m|\
 	tplink,cpe210-v1|\
 	tplink,cpe220-v2|\
 	tplink,cpe220-v3|\
diff --git a/target/linux/ath79/image/generic.mk b/target/linux/ath79/image/generic.mk
index 9f296adaa75..35def342502 100644
--- a/target/linux/ath79/image/generic.mk
+++ b/target/linux/ath79/image/generic.mk
@@ -418,6 +418,17 @@ define Device/comfast_cf-wr752ac-v1
 endef
 TARGET_DEVICES += comfast_cf-wr752ac-v1
 
+define Device/compex_wpj531-16m
+  SOC := qca9531
+  DEVICE_PACKAGES := kmod-usb2
+  IMAGE_SIZE := 16128k
+  DEVICE_VENDOR := Compex
+  DEVICE_MODEL := WPJ531
+  DEVICE_VARIANT := 16M
+  SUPPORTED_DEVICES += wpj531
+endef
+TARGET_DEVICES += compex_wpj531-16m
+
 define Device/devolo_dvl1200e
   SOC := qca9558
   DEVICE_VENDOR := devolo