[openwrt/openwrt] ramips: add support for TP-Link Archer AX21
LEDE Commits
lede-commits at lists.infradead.org
Sun Nov 30 15:12:05 PST 2025
hauke pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/e11e1c18eea933dc614ed1dbbec275ae03a8328e
commit e11e1c18eea933dc614ed1dbbec275ae03a8328e
Author: Andrew LaMarche <andrewjlamarche at gmail.com>
AuthorDate: Wed Nov 19 11:28:19 2025 -0500
ramips: add support for TP-Link Archer AX21
This patch adds support for the TP-Link Archer AX21 v4.
Device specification
--------------------
SoC Type: Mediatek MT7621DAT
RAM: DDR (128MB)
Flash: ESMT EN25QH128A (16MB)
Ethernet: 5x (4 lan, 1 wan) via embedded switch/SoC built-in
Wi-Fi: 2x2 2.4GHz via MT7975DN, 2x2 5GHz via MT7905DAN
LEDs: Power, 2.4GHz, 5GHz, WAN, LAN, WPS
Buttons: Reset, WPS
Installation
------------
Upload the factory image using the Web UI.
Signed-off-by: Andrew LaMarche <andrewjlamarche at gmail.com>
Link: https://github.com/openwrt/openwrt/pull/20932
Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
.../ramips/dts/mt7621_tplink_archer-ax21-v4.dts | 233 +++++++++++++++++++++
target/linux/ramips/image/mt7621.mk | 12 ++
.../ramips/mt7621/base-files/etc/board.d/01_leds | 1 +
3 files changed, 246 insertions(+)
diff --git a/target/linux/ramips/dts/mt7621_tplink_archer-ax21-v4.dts b/target/linux/ramips/dts/mt7621_tplink_archer-ax21-v4.dts
new file mode 100644
index 0000000000..eabb719b67
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_tplink_archer-ax21-v4.dts
@@ -0,0 +1,233 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+ compatible = "tplink,archer-ax21-v4", "mediatek,mt7621-soc";
+ model = "TP-Link Archer AX21 v4";
+
+ aliases {
+ led-boot = &led_power;
+ led-failsafe = &led_power;
+ led-running = &led_power;
+ led-upgrade = &led_power;
+ label-mac-device = &gmac0;
+ };
+
+ chosen {
+ bootargs = "console=ttyS0,115200";
+ };
+
+ keys {
+ compatible = "gpio-keys";
+
+ reset {
+ label = "reset";
+ linux,code = <KEY_RESTART>;
+ gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
+ };
+
+ wps {
+ label = "wps";
+ linux,code = <KEY_WPS_BUTTON>;
+ gpios = <&gpio 7 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led_power: power {
+ function = LED_FUNCTION_POWER;
+ color = <LED_COLOR_ID_GREEN>;
+ gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+ };
+
+ wlan-2g {
+ function = LED_FUNCTION_WLAN_2GHZ;
+ color = <LED_COLOR_ID_GREEN>;
+ gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "phy0tpt";
+ };
+
+ wlan-5g {
+ function = LED_FUNCTION_WLAN_5GHZ;
+ color = <LED_COLOR_ID_GREEN>;
+ gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "phy1tpt";
+ };
+
+ wan-green {
+ function = LED_FUNCTION_WAN;
+ color = <LED_COLOR_ID_GREEN>;
+ gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+ };
+
+ wan-orange {
+ function = LED_FUNCTION_WAN;
+ color = <LED_COLOR_ID_ORANGE>;
+ gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+ };
+
+ lan {
+ function = LED_FUNCTION_LAN;
+ color = <LED_COLOR_ID_GREEN>;
+ gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+ };
+
+ wps {
+ function = LED_FUNCTION_WPS;
+ color = <LED_COLOR_ID_GREEN>;
+ gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+&spi0 {
+ status = "okay";
+
+ flash at 0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <25000000>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition at 0 {
+ label = "u-boot";
+ reg = <0x0 0x40000>;
+ read-only;
+ };
+
+ partition at 40000 {
+ compatible = "denx,uimage";
+ label = "firmware";
+ reg = <0x40000 0xf60000>;
+ };
+
+ partition at fa0000 {
+ label = "config";
+ reg = <0xfa0000 0x10000>;
+ read-only;
+
+ nvmem-layout {
+ compatible = "fixed-layout";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ macaddr_config_8: macaddr at 8 {
+ compatible = "mac-base";
+ reg = <0x8 0x6>;
+ #nvmem-cell-cells = <1>;
+ };
+ };
+ };
+
+ partition at fb0000 {
+ label = "tplink";
+ reg = <0xfb0000 0x40000>;
+ read-only;
+ };
+
+ partition at ff0000 {
+ label = "radio";
+ reg = <0xff0000 0x010000>;
+ read-only;
+
+ nvmem-layout {
+ compatible = "fixed-layout";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ eeprom_radio_0: eeprom at 0 {
+ reg = <0x0 0xe00>;
+ };
+ };
+ };
+ };
+ };
+};
+
+&pcie {
+ status = "okay";
+};
+
+&pcie1 {
+ wifi at 0,0 {
+ compatible = "mediatek,mt76";
+ reg = <0x0000 0 0 0 0>;
+ nvmem-cells = <&eeprom_radio_0>;
+ nvmem-cell-names = "eeprom";
+ mediatek,disable-radar-background;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ band at 0 {
+ reg = <0>;
+ nvmem-cells = <&macaddr_config_8 0>;
+ nvmem-cell-names = "mac-address";
+ };
+
+ band at 1 {
+ reg = <1>;
+ nvmem-cells = <&macaddr_config_8 (-1)>;
+ nvmem-cell-names = "mac-address";
+ };
+ };
+};
+
+&gmac0 {
+ nvmem-cells = <&macaddr_config_8 0>;
+ nvmem-cell-names = "mac-address";
+};
+
+&gmac1 {
+ status = "okay";
+ label = "wan";
+ phy-handle = <ðphy4>;
+
+ nvmem-cells = <&macaddr_config_8 1>;
+ nvmem-cell-names = "mac-address";
+};
+
+ðphy4 {
+ /delete-property/ interrupts;
+};
+
+&switch0 {
+ ports {
+ port at 0 {
+ status = "okay";
+ label = "lan1";
+ };
+
+ port at 1 {
+ status = "okay";
+ label = "lan2";
+ };
+
+ port at 2 {
+ status = "okay";
+ label = "lan3";
+ };
+
+ port at 3 {
+ status = "okay";
+ label = "lan4";
+ };
+ };
+};
+
+&state_default {
+ gpio {
+ groups = "i2c", "uart3", "jtag", "wdt";
+ };
+};
diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index bb4ffa8adb..8ddfed95f5 100644
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -2859,6 +2859,18 @@ define Device/tozed_zlt-s12-pro
endef
TARGET_DEVICES += tozed_zlt-s12-pro
+define Device/tplink_archer-ax21-v4
+ $(Device/dsa-migration)
+ $(Device/tplink-safeloader)
+ DEVICE_MODEL := Archer AX21
+ DEVICE_VARIANT := v4
+ DEVICE_PACKAGES := kmod-mt7915-firmware -uboot-envtools
+ TPLINK_BOARD_ID := ARCHER-AX21-V4
+ KERNEL := $(KERNEL_DTB) | uImage lzma
+ IMAGE_SIZE := 15744k
+endef
+TARGET_DEVICES += tplink_archer-ax21-v4
+
define Device/tplink_archer-ax23-v1
$(Device/dsa-migration)
$(Device/tplink-safeloader)
diff --git a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
index d2f9d04ab4..989fe17af8 100644
--- a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
+++ b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
@@ -208,6 +208,7 @@ snr,snr-cpe-me1)
ucidef_set_led_usbport "usb" "USB" "green:usb" "usb1-port1" "usb2-port1"
;;
tplink,archer-a6-v3|\
+tplink,archer-ax21-v4|\
tplink,archer-ax23-v1|\
tplink,archer-c6-v3|\
tplink,archer-c6u-v1|\
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