Add an OpenWrt-based U-Boot build for this device, allowing for more
flexibility and customization.
Expected behaviour
------------------
When plugging the device, keeping the reset button pressed will enter
TFTP recovery mode: the board will send requests for the initramfs file
(openwrt-mediatek-filogic-glinet_gl-mt2500-initramfs-kernel.bin) from
IP 192.168.1.1 to 192.168.1.10 TFTP server.
The bootloader will populate the environment with the unit serial number
as reported by the "sn" value in eMMC, the "sn_bak" value, the country
code and ddns. WAN and LAN MAC addresses are reported in the environment
as well.
Limitations
-----------
No web interface is available, and only the LAN port can be used for
system recovery.
Notes
-----
This port has been tested with the Maxlinear version only, and with a
board that does not exhibit eMMC communication problems. Even tough eMMC
frequency has been lowered, some testing is probably needed and always
very welcome.
A -factory image has been introduced, and is only needed when using the
"Load Firmware via TFTP then write to eMMC." boot menu function.
The device has not been converted to use FIT to keep compatibility with
stock bootloader and firmware.
Installation
------------
>From a Linux root shell:
0. Transfer the needed files to the board, placing them in /tmp.
1. Make sure your U-Boot environment is erased: all of my units came with
unpopulated environment, but I am not sure this is always the case.
Issue the command
cat /dev/zero >/dev/mmcblk0p2
(you will get a "no space left" error, which is reasonable and expected).
2. Unlock the eMMC boot area where BL2 is located:
echo 0 >/sys/block/mmcblk0boot0/force_ro
3. Write the new BL2 code:
cat openwrt-mediatek-filogic-glinet_gl-mt2500-emmc-preloader.bin
>/dev/mmcblk0boot0
4. Write new BL31+U-Boot image:
cat openwrt-mediatek-filogic-glinet_gl-mt2500-emmc-bl31-uboot.fip
>/dev/mmcblk0p4
5. Reboot.
Signed-off-by: Enrico Mioso <mrkiko...@gmail.com>
---
package/boot/uboot-mediatek/Makefile | 13 +
.../464-add-GL.iNet-GL-MT2500-Brume2.patch | 296 ++++++++++++++++++
target/linux/mediatek/image/filogic.mk | 6 +-
3 files changed, 314 insertions(+), 1 deletion(-)
create mode 100644
package/boot/uboot-mediatek/patches/464-add-GL.iNet-GL-MT2500-Brume2.patch
diff --git a/package/boot/uboot-mediatek/Makefile
b/package/boot/uboot-mediatek/Makefile
index 7c6a19e5a7..c419bcdbe3 100644
--- a/package/boot/uboot-mediatek/Makefile
+++ b/package/boot/uboot-mediatek/Makefile
@@ -278,6 +278,18 @@ define U-Boot/mt7981_cudy_tr3000-v1
DEPENDS:=+trusted-firmware-a-mt7981-cudy-tr3000-v1
endef
+define U-Boot/mt7981_glinet_gl-mt2500
+ NAME:=GL.iNet GL-MT2500
+ BUILD_SUBTARGET:=filogic
+ BUILD_DEVICES:=glinet_gl-mt2500
+ UBOOT_CONFIG:=mt7981_glinet_gl-mt2500
+ UBOOT_IMAGE:=u-boot.fip
+ BL2_BOOTDEV:=emmc
+ BL2_SOC:=mt7981
+ BL2_DDRTYPE:=ddr4
+ DEPENDS:=+trusted-firmware-a-mt7981-emmc-ddr4
+endef
+
define U-Boot/mt7981_glinet_gl-x3000
NAME:=GL.iNet GL-X3000
BUILD_SUBTARGET:=filogic
@@ -908,6 +920,7 @@ UBOOT_TARGETS := \
mt7981_cmcc_rax3000m-nand \
mt7981_cudy_tr3000-v1 \
mt7981_gatonetworks_gdsp \
+ mt7981_glinet_gl-mt2500 \
mt7981_glinet_gl-x3000 \
mt7981_glinet_gl-xe3000 \
mt7981_h3c_magic-nx30-pro \
diff --git
a/package/boot/uboot-mediatek/patches/464-add-GL.iNet-GL-MT2500-Brume2.patch
b/package/boot/uboot-mediatek/patches/464-add-GL.iNet-GL-MT2500-Brume2.patch
new file mode 100644
index 0000000000..0042227afe
--- /dev/null
+++ b/package/boot/uboot-mediatek/patches/464-add-GL.iNet-GL-MT2500-Brume2.patch
@@ -0,0 +1,296 @@
+From d7ab46cf532c9ca8599cbe654e9b41ca96629905 Mon Sep 17 00:00:00 2001
+From: Enrico Mioso <mrkiko...@gmail.com>
+Date: Sun, 15 Jun 2025 17:35:39 +0200
+Subject: [PATCH] add GL.iNet GL-MT2500 (Brume2)
+
+Signed-off-by: Enrico Mioso <mrkiko...@gmail.com>
+---
+ arch/arm/dts/mt7981-glinet-gl-mt2500.dts | 120 ++++++++++++++++++++++
+ configs/mt7981_glinet_gl-mt2500_defconfig | 113 ++++++++++++++++++++
+ defenvs/glinet_gl-mt2500_env | 38 +++++++
+ 3 files changed, 271 insertions(+)
+ create mode 100644 arch/arm/dts/mt7981-glinet-gl-mt2500.dts
+ create mode 100644 configs/mt7981_glinet_gl-mt2500_defconfig
+ create mode 100644 defenvs/glinet_gl-mt2500_env
+
+--- /dev/null
++++ b/arch/arm/dts/mt7981-glinet-gl-mt2500.dts
+@@ -0,0 +1,120 @@
++// SPDX-License-Identifier: GPL-2.0
++
++/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 = "GL.iNet GL-MT2500";
++ compatible = "glinet,gl-mt2500", "mediatek,mt7981";
++
++ chosen {
++ stdout-path = &uart0;
++ tick-timer = &timer0;
++ };
++
++ memory@40000000 {
++ device_type = "memory";
++ reg = <0x40000000 0x40000000>;
++ };
++
++ 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;
++ };
++
++ keys {
++ compatible = "gpio-keys";
++
++ reset {
++ label = "reset";
++ linux,code = <KEY_RESTART>;
++ gpios = <&pio 1 GPIO_ACTIVE_LOW>;
++ };
++ };
++
++ leds {
++ compatible = "gpio-leds";
++
++ led-vpn {
++ label = "white:vpn";
++ gpios = <&pio 31 GPIO_ACTIVE_LOW>;
++ };
++
++ white {
++ label = "white:system";
++ gpios = <&pio 30 GPIO_ACTIVE_LOW>;
++ };
++
++ blue {
++ label = "blue:system";
++ gpios = <&pio 29 GPIO_ACTIVE_LOW>;
++ };
++ };
++};
++
++ð {
++ status = "okay";
++ mediatek,gmac-id = <1>;
++ phy-mode = "gmii";
++ phy-handle = <&phy0>;
++
++ mdio {
++ phy0: ethernet-phy@0 {
++ compatible = "ethernet-phy-id03a2.9461";
++ reg = <0x0>;
++ phy-mode = "gmii";
++ };
++ };
++};
++
++&mmc0 {
++ status = "okay";
++
++ pinctrl-names = "default";
++ pinctrl-0 = <&mmc0_pins_default>;
++ bus-width = <8>;
++ max-frequency = <26000000>;
++ vmmc-supply = <®_3p3v>;
++ cap-mmc-hw-highspeed;
++ cap-mmc-hw-reset;
++ non-removable;
++};
++
++&pio {
++ mmc0_pins_default: mmc0-pins-default {
++ mux {
++ function = "flash";
++ groups = "emmc_45";
++ };
++ conf-cmd-dat {
++ pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO",
++ "SPI0_CS", "SPI0_HOLD", "SPI0_WP",
++ "SPI1_CLK", "SPI1_MOSI", "SPI1_MISO";
++ input-enable;
++ drive-strength = <MTK_DRIVE_12mA>;
++ bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
++ };
++ conf-clk {
++ pins = "SPI1_CS";
++ drive-strength = <MTK_DRIVE_12mA>;
++ bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
++ };
++ conf-rst {
++ pins = "GPIO_WPS";
++ drive-strength = <MTK_DRIVE_4mA>;
++ bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
++ };
++ };
++};
++
++&uart0 {
++ status = "okay";
++};
+--- /dev/null
++++ b/configs/mt7981_glinet_gl-mt2500_defconfig
+@@ -0,0 +1,113 @@
++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_ENV_SIZE=0x80000
++CONFIG_ENV_OFFSET=0x400000
++CONFIG_DEFAULT_DEVICE_TREE="mt7981-glinet-gl-mt2500"
++CONFIG_OF_LIBFDT_OVERLAY=y
++CONFIG_TARGET_MT7981=y
++CONFIG_SYS_LOAD_ADDR=0x46000000
++CONFIG_DEBUG_UART_BASE=0x11002000
++CONFIG_DEBUG_UART_CLOCK=40000000
++CONFIG_DEBUG_UART=y
++CONFIG_ENV_VARS_UBOOT_CONFIG=y
++# CONFIG_EXPERT is not set
++# CONFIG_EFI_LOADER is not set
++CONFIG_FIT=y
++# CONFIG_BOOTSTD is not set
++# CONFIG_LEGACY_IMAGE_FORMAT is not set
++CONFIG_AUTOBOOT_MENU_SHOW=y
++CONFIG_USE_BOOTCOMMAND=y
++CONFIG_DEFAULT_FDT_FILE="mediatek/mt7981-glinet-gl-mt2500.dtb"
++CONFIG_SYS_CBSIZE=512
++CONFIG_SYS_PBSIZE=1049
++CONFIG_LOGLEVEL=7
++CONFIG_CONSOLE_MUX=y
++CONFIG_SYS_CONSOLE_ENV_OVERWRITE=y
++CONFIG_BOARD_LATE_INIT=y
++CONFIG_HUSH_PARSER=y
++CONFIG_SYS_PROMPT="GL-MT2500> "
++CONFIG_CMD_CPU=y
++CONFIG_CMD_LICENSE=y
++# CONFIG_BOOTM_NETBSD is not set
++# CONFIG_BOOTM_PLAN9 is not set
++# CONFIG_BOOTM_RTEMS is not set
++# CONFIG_BOOTM_VXWORKS is not set
++CONFIG_CMD_BOOTMENU=y
++# CONFIG_CMD_ELF is not set
++CONFIG_CMD_ASKENV=y
++CONFIG_CMD_ERASEENV=y
++CONFIG_CMD_ENV_CALLBACK=y
++CONFIG_CMD_ENV_FLAGS=y
++CONFIG_CMD_STRINGS=y
++# CONFIG_CMD_UNLZ4 is not set
++# CONFIG_CMD_UNZIP is not set
++CONFIG_CMD_DM=y
++CONFIG_CMD_GPIO=y
++CONFIG_CMD_GPT=y
++CONFIG_CMD_GPT_RENAME=y
++CONFIG_CMD_MMC=y
++CONFIG_CMD_PART=y
++CONFIG_CMD_READ=y
++CONFIG_CMD_USB=y
++CONFIG_CMD_WRITE=y
++CONFIG_CMD_SETEXPR_FMT=y
++CONFIG_CMD_XXD=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_WGET=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_FAT=y
++CONFIG_PARTITION_TYPE_GUID=y
++CONFIG_ENV_OVERWRITE=y
++CONFIG_ENV_IS_IN_MMC=y
++CONFIG_USE_DEFAULT_ENV_FILE=y
++CONFIG_DEFAULT_ENV_FILE="defenvs/glinet_gl-mt2500_env"
++CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
++CONFIG_VERSION_VARIABLE=y
++CONFIG_NETCONSOLE=y
++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_HS200_SUPPORT=y
++CONFIG_MMC_MTK=y
++CONFIG_PHY_FIXED=y
++CONFIG_MEDIATEK_ETH=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_SERIAL=y
++CONFIG_SERIAL_RX_BUFFER=y
++CONFIG_MTK_SERIAL=y
++CONFIG_USB=y
++CONFIG_USB_XHCI_HCD=y
++CONFIG_USB_XHCI_MTK=y
++CONFIG_USB_STORAGE=y
++CONFIG_HEXDUMP=y
+--- /dev/null
++++ b/defenvs/glinet_gl-mt2500_env
+@@ -0,0 +1,39 @@
++bootcmd=run boot_system
++boot_default=if env exists flag_recover ; then else run bootcmd ; fi ; run
boot_tftp_forever
++bootdelay=0
++bootfile_firmware=openwrt-mediatek-filogic-glinet_gl-mt2500-squashfs-factory.bin
++bootfile=openwrt-mediatek-filogic-glinet_gl-mt2500-initramfs-kernel.bin
++boot_first=if button reset ; then run boot_tftp ; setenv flag_recover 1 ; run
boot_default ; fi ; bootmenu
++bootmenu_0d=Run default boot command.=run boot_default
++bootmenu_0=Initialize environment.=run _firstboot
++bootmenu_1=Boot system from eMMC.=run boot_system
++bootmenu_2=Load Firmware via TFTP then write to eMMC.=run load_tftp_firmware
; run bootmenu_confirm_return
++bootmenu_3=Boot system via TFTP.=run boot_tftp ; run bootmenu_confirm_return
++bootmenu_4=Reboot.=reset
++bootmenu_5=Reset all settings to factory defaults.=run reset_factory ; run
bootmenu_confirm_return
++bootmenu_confirm_return=askenv - Press ENTER to return to menu ; bootmenu 60
++bootmenu_title= [0;34m( ( ( [1;39mOpenWrt[0;34m ) ) )[0m
++boot_system=part start mmc 0 kernel part_addr && part size mmc 0 kernel
part_size && run mmc_read_kernel && bootm
++boot_tftp_forever=while true ; do run boot_tftp ; sleep 1 ; done
++boot_tftp=tftpboot $loadaddr $bootfile && bootm $loadaddr
++country_code_factory=setexpr macoffs $loadaddr + 0x88 ; env readmem
country_code $macoffs 0x2 ; setenv country_code_factory ; setenv macoffs
++ddns_factory=setexpr macoffs $loadaddr + 0x10 ; env readmem ddns $macoffs
0x10 ; setenv ddns_factory ; setenv macoffs
++emmc_write_firmware=part start mmc 0 kernel part_addr && run filesize_to_blk
&& mmc write $loadaddr $part_addr $cnt
++env_cleanup=setenv load_factory_data ; setenv env_cleanup
++ethaddr_factory=setenv ethaddr $lan_mac ; setenv ethaddr_factory
++filesize_to_blk=setexpr cnt $filesize + 0x1ff && setexpr cnt $cnt / 0x200
++ipaddr=192.168.1.1
++lan_mac_factory=setexpr lan_mac_tmp gsub ":" "" 0x$wan_mac ; setexpr
lan_mac_tmp $lan_mac_tmp + 1 ; setexpr lan_mac_tmp gsub "\\(..\\)" "\\\\1:"
$lan_mac_tmp ; setexpr lan_mac fmt "%.17s" $lan_mac_tmp; setenv lan_mac_tmp ;
setenv lan_mac_factory
++loadaddr=0x46000000
++load_factory_data=mmc dev 0 2 ; mmc read $loadaddr 0x0 0x100 ; mmc dev 0
++load_tftp_firmware=tftpboot $loadaddr $bootfile_firmware && run
emmc_write_firmware
++mmc_read_kernel=mmc read $loadaddr $part_addr 0x100 && imszb $loadaddr
image_size && test 0x$image_size -le 0x$part_size && mmc read $loadaddr
$part_addr $image_size
++reset_factory=eraseenv && reset
++serverip=192.168.1.10
++sn_bak_factory=setexpr macoffs $loadaddr + 0x20 ; env readmem sn_bak $macoffs
0x10 ; setenv sn_bak_factory ; setenv macoffs
++sn_factory=setexpr macoffs $loadaddr + 0x30 ; env readmem sn $macoffs 0x10 ;
setenv sn_factory ; setenv macoffs
++wan_mac_factory=setexpr macoffs $loadaddr + 0xa ; env readmem -b wan_mac
$macoffs 0x6 ; setenv wan_mac_factory ; setenv macoffs
++_bootmenu_update_title=setenv _bootmenu_update_title ; setenv bootmenu_title
"$bootmenu_title [33m$ver[0m"
++_firstboot=setenv _firstboot ; run _switch_to_menu ; run load_factory_data ;
run wan_mac_factory ; run lan_mac_factory ; run ddns_factory ; run sn_factory ;
run sn_bak_factory ; run country_code_factory ; run env_cleanup ; run
ethaddr_factory ; run _init_env ; run boot_first
++_init_env=setenv _init_env ; saveenv
++_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
diff --git a/target/linux/mediatek/image/filogic.mk
b/target/linux/mediatek/image/filogic.mk
index 337403411a..b62dbc52af 100644
--- a/target/linux/mediatek/image/filogic.mk
+++ b/target/linux/mediatek/image/filogic.mk
@@ -950,8 +950,12 @@ define Device/glinet_gl-mt2500
DEVICE_DTS_LOADADDR := 0x47000000
DEVICE_PACKAGES := -wpad-basic-mbedtls e2fsprogs f2fsck mkf2fs kmod-usb3
SUPPORTED_DEVICES += glinet,mt2500-emmc glinet,gl-mt2500-airoha
- IMAGES := sysupgrade.bin
+ IMAGES := sysupgrade.bin factory.bin
+ IMAGE/factory.bin := append-kernel | pad-to 32M | append-rootfs
IMAGE/sysupgrade.bin := sysupgrade-tar | append-gl-metadata
+ ARTIFACTS := emmc-preloader.bin emmc-bl31-uboot.fip
+ ARTIFACT/emmc-preloader.bin := mt7981-bl2 emmc-ddr4
+ ARTIFACT/emmc-bl31-uboot.fip := mt7981-bl31-uboot glinet_gl-mt2500
endef
TARGET_DEVICES += glinet_gl-mt2500
--
2.49.0
_______________________________________________
openwrt-devel mailing list
openwrt-devel@lists.openwrt.org
https://lists.openwrt.org/mailman/listinfo/openwrt-devel
