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@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/20932
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Andrew LaMarche 2025-11-19 11:28:19 -05:00 committed by Hauke Mehrtens
parent fb1e8a446d
commit e11e1c18ee
3 changed files with 246 additions and 0 deletions

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@ -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@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 = <0x0 0x40000>;
read-only;
};
partition@40000 {
compatible = "denx,uimage";
label = "firmware";
reg = <0x40000 0xf60000>;
};
partition@fa0000 {
label = "config";
reg = <0xfa0000 0x10000>;
read-only;
nvmem-layout {
compatible = "fixed-layout";
#address-cells = <1>;
#size-cells = <1>;
macaddr_config_8: macaddr@8 {
compatible = "mac-base";
reg = <0x8 0x6>;
#nvmem-cell-cells = <1>;
};
};
};
partition@fb0000 {
label = "tplink";
reg = <0xfb0000 0x40000>;
read-only;
};
partition@ff0000 {
label = "radio";
reg = <0xff0000 0x010000>;
read-only;
nvmem-layout {
compatible = "fixed-layout";
#address-cells = <1>;
#size-cells = <1>;
eeprom_radio_0: eeprom@0 {
reg = <0x0 0xe00>;
};
};
};
};
};
};
&pcie {
status = "okay";
};
&pcie1 {
wifi@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@0 {
reg = <0>;
nvmem-cells = <&macaddr_config_8 0>;
nvmem-cell-names = "mac-address";
};
band@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 = <&ethphy4>;
nvmem-cells = <&macaddr_config_8 1>;
nvmem-cell-names = "mac-address";
};
&ethphy4 {
/delete-property/ interrupts;
};
&switch0 {
ports {
port@0 {
status = "okay";
label = "lan1";
};
port@1 {
status = "okay";
label = "lan2";
};
port@2 {
status = "okay";
label = "lan3";
};
port@3 {
status = "okay";
label = "lan4";
};
};
};
&state_default {
gpio {
groups = "i2c", "uart3", "jtag", "wdt";
};
};

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@ -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)

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@ -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|\