diff --git a/package/boot/uboot-envtools/files/ath79 b/package/boot/uboot-envtools/files/ath79
index cdaa575fbe3..d4dcc86f5b4 100644
--- a/package/boot/uboot-envtools/files/ath79
+++ b/package/boot/uboot-envtools/files/ath79
@@ -161,6 +161,7 @@ ruckus,zf7372)
 	ubootenv_add_uci_config "/dev/mtd2" "0x0" "0x40000" "0x10000"
 	;;
 sophos,ap15|\
+sophos,ap15c|\
 sophos,ap55|\
 sophos,ap55c|\
 sophos,ap100|\
diff --git a/target/linux/ath79/dts/qca9557_sophos_ap15c.dts b/target/linux/ath79/dts/qca9557_sophos_ap15c.dts
new file mode 100644
index 00000000000..68d02e97a54
--- /dev/null
+++ b/target/linux/ath79/dts/qca9557_sophos_ap15c.dts
@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "qca955x.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+	compatible = "sophos,ap15c", "qca,qca9557";
+	model = "Sophos AP15C";
+
+	aliases {
+		led-boot = &led_status_green;
+		led-failsafe = &led_status_yellow;
+		led-running = &led_status_green;
+		led-upgrade = &led_status_yellow;
+		label-mac-device = &eth0;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8";
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_status_green: status_green {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+		};
+
+		led_status_yellow: status_yellow {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_YELLOW>;
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&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>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x000000 0x040000>;
+				read-only;
+			};
+
+			partition@40000 {
+				label = "u-boot-env";
+				reg = <0x040000 0x010000>;
+			};
+
+			partition@50000 {
+				label = "art";
+				reg = <0x050000 0x010000>;
+				read-only;
+
+				nvmem-layout {
+					compatible = "fixed-layout";
+					#address-cells = <1>;
+					#size-cells = <1>;
+
+					cal_art_1000: calibration@1000 {
+						reg = <0x1000 0x440>;
+					};
+				};
+			};
+
+			partition@60000 {
+				label = "config";
+				reg = <0x060000 0x010000>;
+				read-only;
+
+				nvmem-layout {
+					compatible = "fixed-layout";
+					#address-cells = <1>;
+					#size-cells = <1>;
+
+					macaddr_config_201a: macaddr@201a {
+						reg = <0x201a 0x6>;
+					};
+				};
+			};
+
+			partition@70000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x070000 0xf90000>;
+			};
+		};
+	};
+};
+
+&mdio0 {
+	status = "okay";
+
+	phy-mask = <0x10>;
+
+	phy4: ethernet-phy@4 {
+		reg = <4>;
+		eee-broken-100tx;
+		eee-broken-1000t;
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	pll-data = <0xa6000000 0xa0000101 0xa0001313>;
+
+	nvmem-cells = <&macaddr_config_201a>;
+	nvmem-cell-names = "mac-address";
+
+	phy-mode = "rgmii-id";
+	phy-handle = <&phy4>;
+
+	gmac_config: gmac-config {
+		device = <&gmac>;
+
+		rgmii-enabled = <1>;
+
+		rxdv-delay = <3>;
+		rxd-delay = <3>;
+		txen-delay = <3>;
+		txd-delay = <3>;
+	};
+};
+
+&wmac {
+	status = "okay";
+
+	nvmem-cells = <&cal_art_1000>;
+	nvmem-cell-names = "calibration";
+};
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 0907b630d2a..0225d960aba 100644
--- a/target/linux/ath79/generic/base-files/etc/board.d/02_network
+++ b/target/linux/ath79/generic/base-files/etc/board.d/02_network
@@ -73,6 +73,7 @@ ath79_setup_interfaces()
 	ruckus,zf7351|\
 	siemens,ws-ap3610|\
 	sophos,ap15|\
+	sophos,ap15c|\
 	sophos,ap55|\
 	sophos,ap55c|\
 	sophos,ap100|\
diff --git a/target/linux/ath79/image/generic.mk b/target/linux/ath79/image/generic.mk
index 637788c73e8..d242bf968b8 100644
--- a/target/linux/ath79/image/generic.mk
+++ b/target/linux/ath79/image/generic.mk
@@ -2746,6 +2746,14 @@ define Device/sophos_ap15
 endef
 TARGET_DEVICES += sophos_ap15
 
+define Device/sophos_ap15c
+  SOC := qca9557
+  DEVICE_VENDOR := Sophos
+  DEVICE_MODEL := AP15C
+  IMAGE_SIZE := 15936k
+endef
+TARGET_DEVICES += sophos_ap15c
+
 define Device/sophos_ap55
   SOC := qca9558
   DEVICE_VENDOR := Sophos