ipq40xx: add support for ASUS RT-ACRH17/RT-AC42U

SOC:	IPQ4019
CPU:	Quad-core ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
DRAM:	256 MB
NAND:	128 MiB Macronix MX30LF1G18AC
ETH:	Qualcomm Atheros QCA8075 Gigabit Switch (4x LAN, 1x WAN)
USB:	1x 3.0 (via Synopsys DesignWare DWC3 controller in the SoC)
WLAN1:	Qualcomm Atheros QCA4019 2.4GHz 802.11bgn 2x2:2
WLAN2:	Qualcomm Atheros QCA9984 5GHz 802.11nac 4x4:4
INPUT:	1x WPS, 1x Reset
LEDS:	Status, WIFI1, WIFI2, WAN (red & blue), 4x LAN

This board is very similar to the RT-ACRH13/RT-AC58U. It must be flashed
with an intermediary initramfs image, the jffs2 ubi volume deleted, and
then finally a sysupgrade with the final image performed.

Signed-off-by: Joshua Roys <roysjosh@gmail.com>
(added ALT0)
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

14 files changed, 365 insertions, 22 deletions

diff --git a/package/firmware/ipq-wifi/Makefile b/package/firmware/ipq-wifi/Makefile
index b1e6541e61..5d8c04b7d8 100644
--- a/package/firmware/ipq-wifi/Makefile
+++ b/package/firmware/ipq-wifi/Makefile
@@ -27,6 +27,7 @@ endef
 ALLWIFIBOARDS:= \
 	8dev_habanero-dvk \
 	aruba_ap-303 \
+	asus_rt-ac42u \
 	avm_fritzrepeater-1200 \
 	buffalo_wtr-m2133hp \
 	cellc_rtl30vw \
@@ -116,6 +117,7 @@ endef
 
 $(eval $(call generate-ipq-wifi-package,8dev_habanero-dvk,8devices Habanero DVK))
 $(eval $(call generate-ipq-wifi-package,aruba_ap-303,Aruba AP-303))
+$(eval $(call generate-ipq-wifi-package,asus_rt-ac42u,ASUS RT-AC42U))
 $(eval $(call generate-ipq-wifi-package,avm_fritzrepeater-1200,AVM FRITZRepeater 1200))
 $(eval $(call generate-ipq-wifi-package,buffalo_wtr-m2133hp,Buffalo WTR-M2133HP))
 $(eval $(call generate-ipq-wifi-package,cellc_rtl30vw, Cell C RTL30VW))
diff --git a/package/firmware/ipq-wifi/board-asus_rt-ac42u.qca4019 b/package/firmware/ipq-wifi/board-asus_rt-ac42u.qca4019
new file mode 100644
index 0000000000..cf6b9e0538
--- /dev/null
+++ b/package/firmware/ipq-wifi/board-asus_rt-ac42u.qca4019
diff --git a/package/firmware/ipq-wifi/board-asus_rt-ac42u.qca9984 b/package/firmware/ipq-wifi/board-asus_rt-ac42u.qca9984
new file mode 100644
index 0000000000..ea123a3a63
--- /dev/null
+++ b/package/firmware/ipq-wifi/board-asus_rt-ac42u.qca9984
diff --git a/target/linux/ipq40xx/base-files/etc/board.d/01_leds b/target/linux/ipq40xx/base-files/etc/board.d/01_leds
index 16039c8c42..26acfb6037 100644
--- a/target/linux/ipq40xx/base-files/etc/board.d/01_leds
+++ b/target/linux/ipq40xx/base-files/etc/board.d/01_leds
@@ -12,6 +12,12 @@ case "$board" in
 alfa-network,ap120c-ac)
 	ucidef_set_led_netdev "wan" "WAN" "amber:wan" "eth1"
 	;;
+asus,rt-ac42u)
+	ucidef_set_led_switch "lan1" "LAN1" "blue:lan" "switch0" "0x02"
+	ucidef_set_led_switch "lan2" "LAN2" "blue:lan_1" "switch0" "0x04"
+	ucidef_set_led_switch "lan3" "LAN3" "blue:lan_2" "switch0" "0x08"
+	ucidef_set_led_switch "lan4" "LAN4" "blue:lan_3" "switch0" "0x10"
+	;;
 asus,rt-ac58u)
 	ucidef_set_led_netdev "wan" "WAN" "blue:wan" "eth1"
 	ucidef_set_led_switch "lan" "LAN" "blue:lan" "switch0" "0x1e"
diff --git a/target/linux/ipq40xx/base-files/etc/board.d/02_network b/target/linux/ipq40xx/base-files/etc/board.d/02_network
index c37fc58b22..2b908c800f 100644
--- a/target/linux/ipq40xx/base-files/etc/board.d/02_network
+++ b/target/linux/ipq40xx/base-files/etc/board.d/02_network
@@ -50,6 +50,7 @@ ipq40xx_setup_interfaces()
 	openmesh,a62)
 		ucidef_set_interfaces_lan_wan "eth1" "eth0"
 		;;
+	asus,rt-ac42u|\
 	asus,rt-ac58u|\
 	mikrotik,hap-ac2|\
 	mikrotik,hap-ac3|\
@@ -153,7 +154,6 @@ ipq40xx_setup_macs()
 		label_mac=$(mtd_get_mac_binary "ART" 0x1006)
 		;;
 	asus,rt-ac58u)
-		CI_UBIPART=UBI_DEV
 		wan_mac=$(mtd_get_mac_binary_ubi Factory 0x1006)
 		lan_mac=$(mtd_get_mac_binary_ubi Factory 0x5006)
 		label_mac=$wan_mac
diff --git a/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata b/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
index d368475ffc..12061eadf5 100644
--- a/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
+++ b/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
@@ -26,6 +26,9 @@ case "$FIRMWARE" in
 		ln -sf /lib/firmware/ath10k/pre-cal-pci-0000\:00\:00.0.bin \
 			/lib/firmware/ath10k/QCA9888/hw2.0/board.bin
 		;;
+	asus,rt-ac42u)
+		caldata_extract_ubi "Factory" 0x9000 0x2f20
+		;;
 	avm,fritzrepeater-3000)
 		/usr/bin/fritz_cal_extract -i 1 -s 0x3D000 -e 0x212 -l 12064 -o /lib/firmware/$FIRMWARE $(find_mtd_chardev "urlader0") || \
 		/usr/bin/fritz_cal_extract -i 1 -s 0x3C800 -e 0x212 -l 12064 -o /lib/firmware/$FIRMWARE $(find_mtd_chardev "urlader0") || \
@@ -81,11 +84,9 @@ case "$FIRMWARE" in
 		caldata_extract "ART" 0x1000 0x2f20
 		ath10k_patch_mac $(mtd_get_mac_binary mfginfo 0x1D)
 		;;
-	asus,map-ac2200)
-		caldata_extract_ubi "Factory" 0x1000 0x2f20
-		;;
+	asus,map-ac2200 |\
+	asus,rt-ac42u |\
 	asus,rt-ac58u)
-		CI_UBIPART=UBI_DEV
 		caldata_extract_ubi "Factory" 0x1000 0x2f20
 		;;
 	avm,fritzbox-4040)
@@ -203,11 +204,8 @@ case "$FIRMWARE" in
 		caldata_extract "ART" 0x5000 0x2f20
 		ath10k_patch_mac $(macaddr_add $(mtd_get_mac_binary mfginfo 0x1D) 1)
 		;;
-	asus,map-ac2200)
-		caldata_extract_ubi "Factory" 0x5000 0x2f20
-		;;
+	asus,map-ac2200 |\
 	asus,rt-ac58u)
-		CI_UBIPART=UBI_DEV
 		caldata_extract_ubi "Factory" 0x5000 0x2f20
 		;;
 	avm,fritzbox-4040)
diff --git a/target/linux/ipq40xx/base-files/lib/preinit/05_set_iface_mac_ipq40xx.sh b/target/linux/ipq40xx/base-files/lib/preinit/05_set_iface_mac_ipq40xx.sh
index d1fcd804d9..2609a55d27 100644
--- a/target/linux/ipq40xx/base-files/lib/preinit/05_set_iface_mac_ipq40xx.sh
+++ b/target/linux/ipq40xx/base-files/lib/preinit/05_set_iface_mac_ipq40xx.sh
@@ -7,6 +7,10 @@ preinit_set_mac_address() {
 		ip link set dev eth0 address $(macaddr_add "$base_mac" 1)
 		ip link set dev eth1 address $(macaddr_add "$base_mac" 3)
 		;;
+	asus,rt-ac42u)
+		ip link set dev eth0 address $(mtd_get_mac_binary_ubi Factory 0x1006)
+		ip link set dev eth1 address $(mtd_get_mac_binary_ubi Factory 0x9006)
+		;;
 	engenius,eap2200)
 		base_mac=$(cat /sys/class/net/eth0/address)
 		ip link set dev eth1 address $(macaddr_add "$base_mac" 1)
diff --git a/target/linux/ipq40xx/base-files/lib/preinit/06_set_preinit_iface_ipq40xx.sh b/target/linux/ipq40xx/base-files/lib/preinit/06_set_preinit_iface_ipq40xx.sh
index e97133f105..18c13c602c 100644
--- a/target/linux/ipq40xx/base-files/lib/preinit/06_set_preinit_iface_ipq40xx.sh
+++ b/target/linux/ipq40xx/base-files/lib/preinit/06_set_preinit_iface_ipq40xx.sh
@@ -3,6 +3,7 @@ set_preinit_iface() {
 
 	case $(board_name) in
 	aruba,ap-303| \
+	asus,rt-ac42u| \
 	asus,rt-ac58u| \
 	avm,fritzbox-4040| \
 	ezviz,cs-w3-wd1200g-eup| \
diff --git a/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh b/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
index 357e02000a..b0493e10ba 100644
--- a/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
@@ -6,8 +6,8 @@ RAMFS_COPY_DATA='/etc/fw_env.config /var/lock/fw_printenv.lock'
 
 platform_check_image() {
 	case "$(board_name)" in
+	asus,rt-ac42u |\
 	asus,rt-ac58u)
-		CI_UBIPART="UBI_DEV"
 		local ubidev=$(nand_find_ubi $CI_UBIPART)
 		local asus_root=$(nand_find_volume $ubidev jffs2)
 
@@ -117,8 +117,8 @@ platform_do_upgrade() {
 		CI_KERNPART="linux"
 		nand_do_upgrade "$1"
 		;;
+	asus,rt-ac42u |\
 	asus,rt-ac58u)
-		CI_UBIPART="UBI_DEV"
 		CI_KERNPART="linux"
 		nand_do_upgrade "$1"
 		;;
diff --git a/target/linux/ipq40xx/config-5.10 b/target/linux/ipq40xx/config-5.10
index 64f0e54d41..b944c11d16 100644
--- a/target/linux/ipq40xx/config-5.10
+++ b/target/linux/ipq40xx/config-5.10
@@ -225,6 +225,7 @@ CONFIG_LEDS_LP5523=y
 CONFIG_LEDS_LP5562=y
 CONFIG_LEDS_LP55XX_COMMON=y
 CONFIG_LEDS_TLC591XX=y
+CONFIG_LED_TRIGGER_PHY=y
 CONFIG_LIBFDT=y
 CONFIG_LOCK_DEBUGGING_SUPPORT=y
 CONFIG_LOCK_SPIN_ON_OWNER=y
diff --git a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-rt-ac58u.dts b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-rt-ac58u.dts
index bd0c6b71df..ac4d4a139c 100644
--- a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-rt-ac58u.dts
+++ b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-rt-ac58u.dts
@@ -21,10 +21,6 @@
 		led-upgrade = &led_power;
 	};
 
-	chosen {
-		bootargs-append = " ubi.mtd=UBI_DEV";
-	};
-
 	soc {
 		rng@22000 {
 			status = "okay";
@@ -272,12 +268,7 @@
 			#size-cells = <1>;
 
 			partition@0 {
-				/*
-				 * TODO: change to label = "ubi" once we drop 4.14.
-				 *       also drop the bootargs-append and all the
-				 *	 userspace CI_UBIPART="UBI_DEV" remains.
-				 */
-				label = "UBI_DEV";
+				label = "ubi";
 				reg = <0x00000000 0x08000000>;
 			};
 		};
diff --git a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-rt-ac42u.dts b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-rt-ac42u.dts
new file mode 100644
index 0000000000..31e2e40ac0
--- /dev/null
+++ b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-rt-ac42u.dts
@@ -0,0 +1,307 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "qcom-ipq4019.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/soc/qcom,tcsr.h>
+
+/ {
+	model = "ASUS RT-AC42U";
+	compatible = "asus,rt-ac42u";
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x10000000>; /* 256MB */
+	};
+
+	aliases {
+		led-boot = &led_power;
+		led-failsafe = &led_power;
+		led-running = &led_power;
+		led-upgrade = &led_power;
+	};
+
+	soc {
+		rng@22000 {
+			status = "okay";
+		};
+
+		mdio@90000 {
+			status = "okay";
+		};
+
+		ess-psgmii@98000 {
+			status = "okay";
+		};
+
+		tcsr@1949000 {
+			compatible = "qcom,tcsr";
+			reg = <0x1949000 0x100>;
+			qcom,wifi_glb_cfg = <TCSR_WIFI_GLB_CFG>;
+		};
+
+		tcsr@194b000 {
+			compatible = "qcom,tcsr";
+			reg = <0x194b000 0x100>;
+			qcom,usb-hsphy-mode-select = <TCSR_USB_HSPHY_HOST_MODE>;
+		};
+
+		ess_tcsr@1953000 {
+			compatible = "qcom,tcsr";
+			reg = <0x1953000 0x1000>;
+			qcom,ess-interface-select = <TCSR_ESS_PSGMII>;
+		};
+
+		tcsr@1957000 {
+			compatible = "qcom,tcsr";
+			reg = <0x1957000 0x100>;
+			qcom,wifi_noc_memtype_m0_m2 = <TCSR_WIFI_NOC_MEMTYPE_M0_M2>;
+		};
+
+		usb3@8af8800 {
+			status = "okay";
+
+			dwc3@8a00000 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				usb3_port1: port@1 {
+					reg = <1>;
+					#trigger-source-cells = <0>;
+				};
+
+				usb3_port2: port@2 {
+					reg = <2>;
+					#trigger-source-cells = <0>;
+				};
+			};
+		};
+
+		crypto@8e3a000 {
+			status = "okay";
+		};
+
+		watchdog@b017000 {
+			status = "okay";
+		};
+
+		ess-switch@c000000 {
+			status = "okay";
+		};
+
+		edma@c080000 {
+			status = "okay";
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&tlmm 18 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+
+		wps {
+			label = "wps";
+			gpios = <&tlmm 11 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_power: led-0 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_STATUS;
+			gpios = <&tlmm 40 GPIO_ACTIVE_LOW>;
+			label = "blue:status";
+		};
+
+		led-1 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_WAN;
+			gpios = <&tlmm 61 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "90000.mdio-1:04:link";
+		};
+
+		led-2 {
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_WAN;
+			gpios = <&tlmm 68 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "none";
+		};
+
+		led-3 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_WLAN;
+			gpios = <&tlmm 52 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy1tpt";
+		};
+
+		led-4 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_WLAN;
+			gpios = <&tlmm 54 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0tpt";
+		};
+
+		led-5 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_LAN;
+			gpios = <&tlmm 45 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "switch0";
+		};
+
+		led-6 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_LAN;
+			gpios = <&tlmm 43 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "switch0";
+		};
+
+		led-7 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_LAN;
+			gpios = <&tlmm 42 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "switch0";
+		};
+
+		led-8 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_LAN;
+			gpios = <&tlmm 49 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "switch0";
+		};
+	};
+};
+
+&cryptobam {
+	status = "okay";
+};
+
+&blsp_dma {
+	status = "okay";
+};
+
+&qpic_bam {
+	status = "okay";
+};
+
+&tlmm {
+	serial_0_pins: serial0_pinmux {
+		mux {
+			pins = "gpio16", "gpio17";
+			function = "blsp_uart0";
+			bias-disable;
+		};
+	};
+
+	nand_pins: nand_pins {
+		pullups {
+			pins = "gpio53", "gpio58", "gpio59";
+			function = "qpic";
+			bias-pull-up;
+		};
+
+		pulldowns {
+			pins = "gpio55", "gpio56", "gpio57", "gpio60",
+				"gpio62", "gpio63", "gpio64", "gpio65",
+				"gpio66", "gpio67", "gpio69";
+			function = "qpic";
+			bias-pull-down;
+		};
+	};
+};
+
+&blsp1_uart1 {
+	pinctrl-0 = <&serial_0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&nand {
+	pinctrl-0 = <&nand_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	nand@0 {
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "SBL1";
+				reg = <0x00000000 0x00080000>;
+				read-only;
+			};
+			partition@80000 {
+				label = "MIBIB";
+				reg = <0x00080000 0x00080000>;
+				read-only;
+			};
+			partition@100000 {
+				label = "QSEE";
+				reg = <0x00100000 0x00100000>;
+				read-only;
+			};
+			partition@200000 {
+				label = "CDT";
+				reg = <0x00200000 0x00080000>;
+				read-only;
+			};
+			partition@280000 {
+				label = "APPSBL";
+				reg = <0x00280000 0x00140000>;
+				read-only;
+			};
+			partition@3C0000 {
+				label = "APPSBLENV";
+				reg = <0x003C0000 0x00040000>;
+				read-only;
+			};
+			partition@400000 {
+				label = "ubi";
+				reg = <0x00400000 0x07C00000>;
+			};
+		};
+	};
+};
+
+&usb3_ss_phy {
+	status = "okay";
+};
+
+&usb3_hs_phy {
+	status = "okay";
+};
+
+&wifi0 {
+	status = "okay";
+	qcom,ath10k-calibration-variant = "ASUS-RT-AC42U";
+};
+
+&pcie0 {
+	status = "okay";
+	perst-gpio = <&tlmm 38 GPIO_ACTIVE_LOW>;
+	wake-gpio = <&tlmm 50 GPIO_ACTIVE_LOW>;
+	clkreq-gpio = <&tlmm 39 GPIO_ACTIVE_LOW>;
+
+	bridge@0,0 {
+		reg = <0x00000000 0 0 0 0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		ranges;
+
+		wifi2: wifi@1,0 {
+			compatible = "qcom,ath10k";
+			reg = <0x00010000 0 0 0 0>;
+
+			qcom,ath10k-calibration-variant = "ASUS-RT-AC42U";
+		};
+	};
+};
diff --git a/target/linux/ipq40xx/image/generic.mk b/target/linux/ipq40xx/image/generic.mk
index 332fff7f45..43ea5b801a 100644
--- a/target/linux/ipq40xx/image/generic.mk
+++ b/target/linux/ipq40xx/image/generic.mk
@@ -57,6 +57,10 @@ define Build/append-rutx-metadata
 		}' | fwtool -I - $@
 endef
 
+define Build/copy-file
+	cat "$(1)" > "$@"
+endef
+
 define Build/mkmylofw_32m
 	$(eval device_id=$(word 1,$(1)))
 	$(eval revision=$(word 2,$(1)))
@@ -196,6 +200,34 @@ define Device/asus_map-ac2200
 endef
 TARGET_DEVICES += asus_map-ac2200
 
+# WARNING: this is an initramfs image that gets you half of the way there
+#          you need to delete the jffs2 ubi volume and sysupgrade to the final image
+# to get a "trx" you can flash via web UI for ac42u/ac58u:
+# - change call Device/FitImageLzma to Device/FitImage
+# - add the following below UIMAGE_NAME
+#   UIMAGE_MAGIC := 0x27051956
+#   IMAGES += factory.trx
+#   IMAGE/factory.trx := copy-file $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE) | uImage none
+define Device/asus_rt-ac42u
+	$(call Device/FitImageLzma)
+	DEVICE_VENDOR := ASUS
+	DEVICE_MODEL := RT-AC42U
+	DEVICE_ALT0_VENDOR := ASUS
+	DEVICE_ALT0_MODEL := RT-ACRH17
+	SOC := qcom-ipq4019
+	BLOCKSIZE := 128k
+	PAGESIZE := 2048
+	DTB_SIZE := 65536
+	IMAGE_SIZE := 20439364
+	FILESYSTEMS := squashfs
+#	RT-AC82U is nowhere to be found online
+#	Rather, this device is a/k/a RT-AC42U
+#	But we'll go with what the vendor firmware has...
+	UIMAGE_NAME:=$(shell echo -e '\03\01\01\01RT-AC82U')
+	DEVICE_PACKAGES := ath10k-firmware-qca9984-ct ipq-wifi-asus_rt-ac42u kmod-usb-ledtrig-usbport
+endef
+TARGET_DEVICES += asus_rt-ac42u
+
 define Device/asus_rt-ac58u
 	$(call Device/FitImageLzma)
 	DEVICE_VENDOR := ASUS
diff --git a/target/linux/ipq40xx/patches-5.10/901-arm-boot-add-dts-files.patch b/target/linux/ipq40xx/patches-5.10/901-arm-boot-add-dts-files.patch
index b641251423..b76b1a30bb 100644
--- a/target/linux/ipq40xx/patches-5.10/901-arm-boot-add-dts-files.patch
+++ b/target/linux/ipq40xx/patches-5.10/901-arm-boot-add-dts-files.patch
@@ -10,7 +10,7 @@ Signed-off-by: John Crispin <john@phrozen.org>
 
 --- a/arch/arm/boot/dts/Makefile
 +++ b/arch/arm/boot/dts/Makefile
-@@ -902,11 +902,71 @@ dtb-$(CONFIG_ARCH_QCOM) += \
+@@ -902,11 +902,72 @@ dtb-$(CONFIG_ARCH_QCOM) += \
  	qcom-apq8074-dragonboard.dtb \
  	qcom-apq8084-ifc6540.dtb \
  	qcom-apq8084-mtp.dtb \
@@ -65,6 +65,7 @@ Signed-off-by: John Crispin <john@phrozen.org>
 +	qcom-ipq4019-r619ac-128m.dtb \
 +	qcom-ipq4019-rbr50.dtb \
 +	qcom-ipq4019-rbs50.dtb \
++	qcom-ipq4019-rt-ac42u.dtb \
 +	qcom-ipq4019-rtl30vw.dtb \
 +	qcom-ipq4019-srr60.dtb \
 +	qcom-ipq4019-srs60.dtb \