--- /dev/null
+++ b/configs/mt7981_xiaomi_mi-router-ax3000t_defconfig
@@ -0,0 +1,107 @@
+CONFIG_ARM=y
+CONFIG_SYS_HAS_NONCACHED_MEMORY=y
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_MEDIATEK=y
+CONFIG_TEXT_BASE=0x41e00000
+CONFIG_SYS_MALLOC_F_LEN=0x4000
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_DEFAULT_DEVICE_TREE="mt7981_xiaomi_mi-router-ax3000t"
+CONFIG_OF_LIBFDT_OVERLAY=y
+CONFIG_TARGET_MT7981=y
+CONFIG_SYS_LOAD_ADDR=0x46000000
+CONFIG_PRE_CON_BUF_ADDR=0x4007EF00
+CONFIG_DEBUG_UART_BASE=0x11002000
+CONFIG_DEBUG_UART_CLOCK=40000000
+CONFIG_DEBUG_UART=y
+CONFIG_FIT=y
+CONFIG_BOOTDELAY=30
+CONFIG_AUTOBOOT_KEYED=y
+CONFIG_AUTOBOOT_MENU_SHOW=y
+CONFIG_DEFAULT_FDT_FILE="mediatek/mt7981_xiaomi_mi-router-ax3000t.dtb"
+CONFIG_LOGLEVEL=7
+CONFIG_PRE_CONSOLE_BUFFER=y
+CONFIG_LOG=y
+CONFIG_BOARD_LATE_INIT=y
+CONFIG_HUSH_PARSER=y
+CONFIG_SYS_PROMPT="MT7981> "
+CONFIG_CMD_CPU=y
+CONFIG_CMD_LICENSE=y
+CONFIG_CMD_BOOTMENU=y
+CONFIG_CMD_ASKENV=y
+CONFIG_CMD_ERASEENV=y
+CONFIG_CMD_ENV_FLAGS=y
+CONFIG_CMD_STRINGS=y
+CONFIG_CMD_DM=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_MTD=y
+CONFIG_CMD_PART=y
+CONFIG_CMD_TFTPSRV=y
+CONFIG_CMD_RARP=y
+CONFIG_CMD_CDP=y
+CONFIG_CMD_SNTP=y
+CONFIG_CMD_LINK_LOCAL=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_DNS=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_PXE=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_PSTORE=y
+CONFIG_CMD_PSTORE_MEM_ADDR=0x42ff0000
+CONFIG_CMD_UUID=y
+CONFIG_CMD_HASH=y
+CONFIG_CMD_SMC=y
+CONFIG_CMD_UBI=y
+CONFIG_CMD_UBI_RENAME=y
+CONFIG_OF_EMBED=y
+CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_IN_UBI=y
+CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
+CONFIG_ENV_UBI_PART="ubi"
+CONFIG_ENV_UBI_VOLUME="ubootenv"
+CONFIG_ENV_UBI_VOLUME_REDUND="ubootenv2"
+CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_USE_DEFAULT_ENV_FILE=y
+CONFIG_DEFAULT_ENV_FILE="defenvs/xiaomi_mi-router-ax3000t_env"
+CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+CONFIG_VERSION_VARIABLE=y
+CONFIG_NETCONSOLE=y
+CONFIG_USE_IPADDR=y
+CONFIG_IPADDR="192.168.1.1"
+CONFIG_USE_SERVERIP=y
+CONFIG_SERVERIP="192.168.1.254"
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_REGMAP=y
+CONFIG_SYSCON=y
+CONFIG_BUTTON=y
+CONFIG_BUTTON_GPIO=y
+CONFIG_CLK=y
+CONFIG_GPIO_HOG=y
+CONFIG_LED=y
+CONFIG_LED_BLINK=y
+CONFIG_LED_GPIO=y
+# CONFIG_MMC is not set
+CONFIG_MTD=y
+CONFIG_DM_MTD=y
+CONFIG_MTD_SPI_NAND=y
+CONFIG_MTD_UBI_FASTMAP=y
+CONFIG_PHY_FIXED=y
+CONFIG_MEDIATEK_ETH=y
+CONFIG_PHY=y
+CONFIG_PINCTRL=y
+CONFIG_PINCONF=y
+CONFIG_PINCTRL_MT7981=y
+CONFIG_POWER_DOMAIN=y
+CONFIG_MTK_POWER_DOMAIN=y
+CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_DM_REGULATOR_GPIO=y
+CONFIG_RAM=y
+CONFIG_DM_SERIAL=y
+CONFIG_SERIAL_RX_BUFFER=y
+CONFIG_MTK_SERIAL=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_MTK_SPIM=y
+CONFIG_ZSTD=y
+CONFIG_HEXDUMP=y
--- /dev/null
+++ b/arch/arm/dts/mt7981_xiaomi_mi-router-ax3000t.dts
@@ -0,0 +1,187 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Sam Shih <sam.shih@mediatek.com>
+ */
+
+/dts-v1/;
+#include "mt7981.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/linux-event-codes.h>
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	model = "Xiaomi Router AX3000T";
+	compatible = "mediatek,mt7981", "mediatek,mt7981-rfb";
+
+	chosen {
+		stdout-path = &uart0;
+		tick-timer = &timer0;
+	};
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x40000000 0x10000000>;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&pio 1 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+
+		mesh {
+			label = "mesh";
+			gpios = <&pio 0 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_9>;
+			linux,input-type = <EV_SW>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_status_blue {
+			label = "blue:status";
+			gpios = <&pio 9 GPIO_ACTIVE_LOW>;
+		};
+
+		led_status_yellow {
+			label = "yellow:status";
+			gpios = <&pio 10 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&uart0 {
+	mediatek,force-highspeed;
+	status = "okay";
+};
+
+&eth {
+	status = "okay";
+	mediatek,gmac-id = <0>;
+	phy-mode = "2500base-x";
+	mediatek,switch = "auto";
+	reset-gpios = <&pio 39 GPIO_ACTIVE_HIGH>;
+
+	fixed-link {
+		speed = <2500>;
+		full-duplex;
+	};
+};
+
+&pio {
+	spic_pins: spi1-pins-func-1 {
+		mux {
+			function = "spi";
+			groups = "spi1_1";
+		};
+	};
+
+	uart1_pins: spi1-pins-func-3 {
+		mux {
+			function = "uart";
+			groups = "uart1_2";
+		};
+	};
+
+	spi_flash_pins: spi0-pins-func-1 {
+		mux {
+			function = "flash";
+			groups = "spi0", "spi0_wp_hold";
+		};
+
+		conf-pu {
+			pins = "SPI0_CS", "SPI0_HOLD", "SPI0_WP";
+			drive-strength = <MTK_DRIVE_8mA>;
+			bias-pull-up = <MTK_PUPD_SET_R1R0_11>;
+		};
+
+		conf-pd {
+			pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO";
+			drive-strength = <MTK_DRIVE_8mA>;
+			bias-pull-down = <MTK_PUPD_SET_R1R0_11>;
+		};
+	};
+};
+
+&spi0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi_flash_pins>;
+	status = "okay";
+	must_tx;
+	enhance_timing;
+	dma_ext;
+	ipm_design;
+	support_quad;
+	tick_dly = <2>;
+	sample_sel = <0>;
+
+	spi_nand@0 {
+		compatible = "spi-nand";
+		reg = <0>;
+		spi-max-frequency = <52000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "bl2";
+				reg = <0x00 0x100000>;
+			};
+
+			partition@100000 {
+				label = "Nvram";
+				reg = <0x100000 0x40000>;
+			};
+
+			partition@140000 {
+				label = "Bdata";
+				reg = <0x140000 0x40000>;
+			};
+
+			partition@180000 {
+				label = "factory";
+				reg = <0x180000 0x200000>;
+			};
+
+			partition@380000 {
+				label = "fip";
+				reg = <0x380000 0x200000>;
+			};
+
+			partition@580000 {
+				label = "crash";
+				reg = <0x580000 0x40000>;
+			};
+
+			partition@5c0000 {
+				label = "crash_log";
+				reg = <0x5c0000 0x40000>;
+			};
+
+			partition@600000 {
+				label = "ubi";
+				reg = <0x600000 0x7000000>;
+			};
+
+			partition@7600000 {
+				label = "KF";
+				reg = <0x7600000 0x40000>;
+			};
+		};
+	};
+};
+
+&watchdog {
+	status = "disabled";
+};
--- /dev/null
+++ b/defenvs/xiaomi_mi-router-ax3000t_env
@@ -0,0 +1,55 @@
+ipaddr=192.168.1.1
+serverip=192.168.1.254
+loadaddr=0x46000000
+console=earlycon=uart8250,mmio32,0x11002000 console=ttyS0
+bootargs=console=ttyS0,115200n8 console_msg_format=syslog
+bootcmd=if pstore check ; then run boot_recovery ; else run boot_ubi ; fi
+bootconf=config-1
+bootdelay=0
+bootfile=openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-ubootmod-initramfs-recovery.itb
+bootfile_bl2=openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-ubootmod-preloader.bin
+bootfile_fip=openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-ubootmod-bl31-uboot.fip
+bootfile_upg=openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-ubootmod-squashfs-sysupgrade.itb
+bootled_pwr=yellow:status
+bootled_rec=blue:status
+bootmenu_confirm_return=askenv - Press ENTER to return to menu ; bootmenu 60
+bootmenu_default=0
+bootmenu_delay=0
+bootmenu_title=      [0;34m( ( ( [1;39mOpenWrt[0;34m ) ) )
+bootmenu_0=Initialize environment.=run _firstboot
+bootmenu_0d=Run default boot command.=run boot_default
+bootmenu_1=Boot system via TFTP.=run boot_tftp ; run bootmenu_confirm_return
+bootmenu_2=Boot production system from NAND.=run boot_production ; run bootmenu_confirm_return
+bootmenu_3=Boot recovery system from NAND.=run boot_recovery ; run bootmenu_confirm_return
+bootmenu_4=Load production system via TFTP then write to NAND.=setenv noboot 1 ; setenv replacevol 1 ; run boot_tftp_production ; setenv noboot ; setenv replacevol ; run bootmenu_confirm_return
+bootmenu_5=Load recovery system via TFTP then write to NAND.=setenv noboot 1 ; setenv replacevol 1 ; run boot_tftp_recovery ; setenv noboot ; setenv replacevol ; run bootmenu_confirm_return
+bootmenu_6=[31mLoad BL31+U-Boot FIP via TFTP then write to NAND.[0m=run boot_tftp_write_fip ; run bootmenu_confirm_return
+bootmenu_7=[31mLoad BL2 preloader via TFTP then write to NAND.[0m=run boot_tftp_write_bl2 ; run bootmenu_confirm_return
+bootmenu_8=Reboot.=reset
+bootmenu_9=Reset all settings to factory defaults.=run reset_factory ; reset
+boot_first=if button reset ; then led $bootled_rec on ; run boot_tftp_recovery ; setenv flag_recover 1 ; run boot_default ; fi ; bootmenu
+boot_default=if env exists flag_recover ; then else run bootcmd ; fi ; run boot_recovery ; setenv replacevol 1 ; run boot_tftp_forever
+boot_production=led $bootled_pwr on ; run ubi_read_production && bootm $loadaddr#$bootconf ; led $bootled_pwr off
+boot_recovery=led $bootled_rec on ; run ubi_read_recovery && bootm $loadaddr#$bootconf ; led $bootled_rec off
+boot_ubi=run boot_production ; run boot_recovery ; run boot_tftp_forever
+boot_tftp_forever=led $bootled_rec on ; while true ; do run boot_tftp_recovery ; sleep 1 ; done
+boot_tftp_recovery=tftpboot $loadaddr $bootfile && env exists replacevol && iminfo $loadaddr && run ubi_write_recovery ; if env exists noboot ; then else bootm $loadaddr#$bootconf ; fi
+boot_tftp_production=tftpboot $loadaddr $bootfile_upg && env exists replacevol && iminfo $loadaddr && run ubi_write_production ; if env exists noboot ; then else bootm $loadaddr#$bootconf ; fi
+boot_tftp=tftpboot $loadaddr $bootfile && bootm $loadaddr#$bootconf
+boot_tftp_write_fip=tftpboot $loadaddr $bootfile_fip && run mtd_write_fip && run reset_factory
+boot_tftp_write_bl2=tftpboot $loadaddr $bootfile_bl2 && run mtd_write_bl2
+reset_factory=ubi part ubi ; mw $loadaddr 0x0 0x800 ; ubi write $loadaddr ubootenv 0x800 ; ubi write $loadaddr ubootenv2 0x800
+mtd_write_fip=mtd erase fip && mtd write fip $loadaddr
+mtd_write_bl2=mtd erase bl2 && mtd write bl2 $loadaddr
+ubi_create_env=ubi check ubootenv || ubi create ubootenv 0x100000 dynamic || run ubi_format ; ubi check ubootenv2 || ubi create ubootenv2 0x100000 dynamic || run ubi_format
+ubi_format=ubi detach ; mtd erase ubi && ubi part ubi ; reset
+ubi_prepare_rootfs=if ubi check rootfs_data ; then else if env exists rootfs_data_max ; then ubi create rootfs_data $rootfs_data_max dynamic || ubi create rootfs_data - dynamic ; else ubi create rootfs_data - dynamic ; fi ; fi
+ubi_read_production=ubi read $loadaddr fit && iminfo $loadaddr && run ubi_prepare_rootfs
+ubi_read_recovery=ubi check recovery && ubi read $loadaddr recovery
+ubi_remove_rootfs=ubi check rootfs_data && ubi remove rootfs_data
+ubi_write_production=ubi check fit && ubi remove fit ; run ubi_remove_rootfs ; ubi create fit $filesize dynamic && ubi write $loadaddr fit $filesize
+ubi_write_recovery=ubi check recovery && ubi remove recovery ; run ubi_remove_rootfs ; ubi create recovery $filesize dynamic && ubi write $loadaddr recovery $filesize
+_init_env=setenv _init_env ; run ubi_create_env ; saveenv ; saveenv
+_firstboot=setenv _firstboot ; run _switch_to_menu ; run _init_env ; run boot_first
+_switch_to_menu=setenv _switch_to_menu ; setenv bootdelay 3 ; setenv bootmenu_delay 3 ; setenv bootmenu_0 $bootmenu_0d ; setenv bootmenu_0d ; run _bootmenu_update_title
+_bootmenu_update_title=setenv _bootmenu_update_title ; setenv bootmenu_title "$bootmenu_title       [33m$ver[0m"
