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uboot-mediatek: add TP-Link BE450

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Add a U-Boot replacement loader for the TP-Link Archer BE450
(MT7988D, 128 MiB SPI-NAND). BL2 boots from spim-nand-ubi with DDR4;
the FIP and the redundant environment are stored in UBI volumes.

This replaces the vendor bootloader and the stock dual-image layout
with a single large UBI partition, freeing around 95 MiB of flash for
OpenWrt. The vendor layout keeps BL2 at flash offset 0x0, which is
where snand_write_bl2 places the first of its four redundant copies.

Signed-off-by: Emre Yavuzalp <emreyavuzalp2@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/23211
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
This commit is contained in:
Emre Yavuzalp 2026-07-07 09:56:53 +03:00 committed by Jonas Jelonek
parent dfd531f517
commit 510e8fe146
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2 changed files with 365 additions and 1 deletions
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15
package/boot/uboot-mediatek/Makefile
View file

@ -1255,6 +1255,18 @@ define U-Boot/mt7988_rfb-sd
DEPENDS:=+trusted-firmware-a-mt7988-sdmmc-comb
endef
define U-Boot/mt7988_tplink_be450
NAME:=TP-Link BE450 (UBI)
BUILD_SUBTARGET:=filogic
BUILD_DEVICES:=tplink_be450-ubi
UBOOT_CONFIG:=mt7988d_tplink_be450
UBOOT_IMAGE:=u-boot.fip
BL2_BOOTDEV:=spim-nand-ubi
BL2_SOC:=mt7988
BL2_DDRTYPE:=ddr4
DEPENDS:=+trusted-firmware-a-mt7988-spim-nand-ubi-ddr4
endef
UBOOT_TARGETS := \
mt7620_mt7530_rfb \
mt7620_rfb \
@ -1360,7 +1372,8 @@ UBOOT_TARGETS := \
mt7988_rfb-snand \
mt7988_rfb-nor \
mt7988_rfb-emmc \
mt7988_rfb-sd
mt7988_rfb-sd \
mt7988_tplink_be450
UBOOT_CUSTOMIZE_CONFIG := \
--disable TOOLS_KWBIMAGE \

351
package/boot/uboot-mediatek/patches/474-add-tplink-be450.patch Normal file
View file

@ -0,0 +1,351 @@
From be5c8ec6cc26cd046c545f3a74695c4617b9fb7c Mon Sep 17 00:00:00 2001
From: Emre Yavuzalp <emreyavuzalp2@gmail.com>
Date: Tue, 7 Jul 2026 09:56:53 +0300
Subject: [PATCH] add TP-Link BE450
Signed-off-by: Emre Yavuzalp <emreyavuzalp2@gmail.com>
---
arch/arm/dts/mt7988d-tplink-be450.dts | 141 +++++++++++++++++++++++++
configs/mt7988d_tplink_be450_defconfig | 132 +++++++++++++++++++++++
defenvs/tplink_be450_env | 54 ++++++++++
3 files changed, 327 insertions(+)
create mode 100644 arch/arm/dts/mt7988d-tplink-be450.dts
create mode 100644 configs/mt7988d_tplink_be450_defconfig
create mode 100644 defenvs/tplink_be450_env
--- /dev/null
+++ b/configs/mt7988d_tplink_be450_defconfig
@@ -0,0 +1,132 @@
+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="mt7988d-tplink-be450"
+CONFIG_OF_LIBFDT_OVERLAY=y
+CONFIG_TARGET_MT7988=y
+CONFIG_SYS_LOAD_ADDR=0x50000000
+CONFIG_PRE_CON_BUF_ADDR=0x4007EF00
+CONFIG_DEBUG_UART_BASE=0x11000000
+CONFIG_DEBUG_UART_CLOCK=40000000
+CONFIG_PCI=y
+CONFIG_DEBUG_UART=y
+CONFIG_AHCI=y
+CONFIG_FIT=y
+CONFIG_BOOTDELAY=30
+CONFIG_AUTOBOOT_KEYED=y
+CONFIG_AUTOBOOT_MENU_SHOW=y
+CONFIG_OF_SYSTEM_SETUP=y
+CONFIG_DEFAULT_FDT_FILE="mediatek/mt7988d-tplink-be450-ubi.dtb"
+CONFIG_SYS_CBSIZE=512
+CONFIG_SYS_PBSIZE=1049
+CONFIG_LOGLEVEL=7
+CONFIG_PRE_CONSOLE_BUFFER=y
+CONFIG_LOG=y
+# CONFIG_BOARD_INIT is not set
+CONFIG_BOARD_LATE_INIT=y
+CONFIG_HUSH_PARSER=y
+CONFIG_SYS_PROMPT="MT7988D> "
+CONFIG_CMD_CPU=y
+CONFIG_CMD_LICENSE=y
+# CONFIG_CMD_BOOTEFI_BOOTMGR is not set
+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_PWM=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_MTD=y
+CONFIG_CMD_PART=y
+CONFIG_CMD_PCI=y
+CONFIG_CMD_SF_TEST=y
+CONFIG_CMD_USB=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_EXT4=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_CMD_FS_UUID=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_ENV_REDUNDANT=y
+CONFIG_ENV_UBI_PART="ubi"
+CONFIG_ENV_UBI_VOLUME="ubootenv"
+CONFIG_ENV_UBI_VOLUME_REDUND="ubootenv2"
+CONFIG_ENV_RELOC_GD_ENV_ADDR=y
+CONFIG_ENV_USE_DEFAULT_ENV_TEXT_FILE=y
+CONFIG_ENV_DEFAULT_ENV_TEXT_FILE="defenvs/tplink_be450_env"
+CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+CONFIG_VERSION_VARIABLE=y
+CONFIG_NET_RANDOM_ETHADDR=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_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_MTD=y
+CONFIG_DM_MTD=y
+CONFIG_MTD_SPI_NAND=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH_WINBOND=y
+# CONFIG_SPI_FLASH_USE_4K_SECTORS is not set
+CONFIG_SPI_FLASH_MTD=y
+CONFIG_MTD_UBI_FASTMAP=y
+CONFIG_PHY_FIXED=y
+CONFIG_MEDIATEK_ETH=y
+CONFIG_PCIE_MEDIATEK=y
+CONFIG_PHY=y
+CONFIG_PHY_MTK_TPHY=y
+CONFIG_PINCTRL=y
+CONFIG_PINCONF=y
+CONFIG_PINCTRL_MT7988=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_DM_PWM=y
+CONFIG_PWM_MTK=y
+CONFIG_RAM=y
+CONFIG_SCSI=y
+CONFIG_DM_SERIAL=y
+CONFIG_MTK_SERIAL=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_MTK_SPIM=y
+CONFIG_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_MTK=y
+CONFIG_USB_STORAGE=y
+CONFIG_ZSTD=y
+CONFIG_HEXDUMP=y
--- /dev/null
+++ b/arch/arm/dts/mt7988d-tplink-be450.dts
@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2026
+ * Author: Emre Yavuzalp <emreyavuzalp2@gmail.com>
+ */
+
+/dts-v1/;
+#include "mt7988.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/linux-event-codes.h>
+
+/ {
+ model = "TP-Link BE450";
+ compatible = "tplink,be450-ubi", "mediatek,mt7988d";
+
+ chosen {
+ stdout-path = &uart0;
+ };
+
+ memory@40000000 {
+ device_type = "memory";
+ reg = <0 0x40000000 0 0x20000000>;
+ };
+
+ reg_3p3v: regulator-3p3v {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_1p8v: regulator-1p8v {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-1.8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ keys {
+ compatible = "gpio-keys";
+
+ reset {
+ label = "reset";
+ linux,code = <KEY_RESTART>;
+ gpios = <&pio 13 GPIO_ACTIVE_LOW>;
+ };
+
+ wps {
+ label = "wps";
+ linux,code = <KEY_WPS_BUTTON>;
+ gpios = <&pio 14 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led_status_blue: led-status {
+ label = "blue:status";
+ gpios = <&pio 30 GPIO_ACTIVE_HIGH>;
+ };
+
+ led_wan_orange: led-wan-orange {
+ label = "orange:wan";
+ gpios = <&pio 21 GPIO_ACTIVE_HIGH>;
+ };
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&eth0 {
+ status = "okay";
+ mediatek,gmac-id = <0>;
+ phy-mode = "usxgmii";
+ mediatek,switch = "mt7988";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+};
+
+&pio {
+ spi0_pins: spi0-pins {
+ mux {
+ function = "spi";
+ groups = "spi0", "spi0_wp_hold";
+ };
+ };
+};
+
+&spi0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi0_pins>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ 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 = <0x0 0x100000>;
+ };
+
+ partition@100000 {
+ label = "factory";
+ reg = <0x100000 0x100000>;
+ };
+
+ partition@200000 {
+ label = "ubi";
+ reg = <0x200000 0x7e00000>;
+ compatible = "linux,ubi";
+ };
+ };
+ };
+};
--- /dev/null
+++ b/defenvs/tplink_be450_env
@@ -0,0 +1,54 @@
+ethaddr_factory=mtd read factory 0x50000000 0x0 0x20000 && env readmem -b ethaddr 0x50000004 0x6 ; setenv ethaddr_factory
+ipaddr=192.168.1.1
+serverip=192.168.1.254
+loadaddr=0x50000000
+bootargs=console=ttyS0,115200n1 pci=pcie_bus_perf root=/dev/fit0 rootwait ubi.block=0,fit
+bootconf=config-1
+bootcmd=run boot_ubi
+bootdelay=0
+bootfile=openwrt-mediatek-filogic-tplink_be450-ubi-initramfs-recovery.itb
+bootfile_bl2=openwrt-mediatek-filogic-tplink_be450-ubi-preloader.bin
+bootfile_fip=openwrt-mediatek-filogic-tplink_be450-ubi-bl31-uboot.fip
+bootfile_upg=openwrt-mediatek-filogic-tplink_be450-ubi-squashfs-sysupgrade.itb
+bootled_pwr=blue:status
+bootled_rec=orange:wan
+bootmenu_confirm_return=askenv - Press ENTER to return to menu ; bootmenu 60
+bootmenu_default=0
+bootmenu_delay=0
+bootmenu_title= ( ( ( OpenWrt ) ) )
+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=Load BL31+U-Boot FIP via TFTP then write to NAND.=run boot_tftp_write_fip ; run bootmenu_confirm_return
+bootmenu_7=Load BL2 preloader via TFTP then write to NAND.=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
+boot_tftp_forever=led $bootled_rec on ; while true ; do run boot_tftp_recovery ; sleep 1 ; done
+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_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=tftpboot $loadaddr $bootfile && bootm $loadaddr#$bootconf
+boot_tftp_write_fip=tftpboot $loadaddr $bootfile_fip && run ubi_write_fip && run reset_factory
+boot_tftp_write_bl2=tftpboot $loadaddr $bootfile_bl2 && run snand_write_bl2
+reset_factory=ubi part ubi ; mw $loadaddr 0x0 0x800 ; ubi write $loadaddr ubootenv 0x800 ; ubi write $loadaddr ubootenv2 0x800
+snand_write_bl2=mtd erase bl2 && mtd write bl2 $loadaddr 0x0 0x40000 && mtd write bl2 $loadaddr 0x40000 0x40000 && mtd write bl2 $loadaddr 0x80000 0x40000 && mtd write bl2 $loadaddr 0xc0000 0x40000
+ubi_create_env=ubi check ubootenv || ubi create ubootenv 0x100000 dynamic ; ubi check ubootenv2 || ubi create ubootenv2 0x100000 dynamic
+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 part ubi && 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_fip=run ubi_remove_rootfs ; ubi check fip && ubi remove fip ; ubi create fip 0x200000 static ; ubi write $loadaddr fip 0x200000
+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 ethaddr_factory ; 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 $ver"