mirror of
https://git.openwrt.org/openwrt/openwrt.git
synced 2025-12-10 08:44:39 +01:00
Hardware specification:
SoC: MediaTek MT7981B
Flash: ESMT F50L1G41LB 128MB
RAM: ESMT M15T2G16128A DDR3 256MB
Ethernet: 3x 1G
Button: Reset, WPS
MAC addresses
LAN: Label MAC (stored in Factory partition offset 0x1fef20)
WAN: LAN + 1
WiFi: LAN
Official LED layout, from left to right:
[power] [internet] [wps] [wifi] [lan3/2/1] [wan]
Redefinition for OpenWrt:
[power]: used for led-boot, led-failsafe, and led-running
[internet]: used for WAN RX/TX indication
[wps]: used for led-upgrade
[wifi] and [lan3/2/1]: unchanged
[wan]: used for WAN link indication
Installing OpenWrt:
- Setup a tftp server on your PC. Copy
xxx-preloader.bin, xxx-bl31-uboot.fip and
xxx-initramfs.itb to tftp root directory.
- Connect to the router via ssh or telnet,
username: useradmin, password is the web
login password of the router.
- Backup all critical flash partitions with
the following commands where x.x.x.x is
the IP of your PC.
IP=x.x.x.x
cd /dev
for d in /sys/class/mtd/mtd?; do
if [ "$(cat $d/name)" = "BL2" ]; then
tftp -l $(basename $d) -r bl2.img -p $IP
elif [ "$(cat $d/name)" = "FIP" ]; then
tftp -l $(basename $d) -r fip.bin -p $IP
elif [ "$(cat $d/name)" = "Factory" ]; then
tftp -l $(basename $d) -r factory.bin -p $IP
fi
done
for d in /sys/devices/virtual/ubi/ubi0/ubi0_*; do
[ "$(cat $d/name)" != "customer" ] && continue
tftp -l $(basename $d) -r customer -p $IP
break
done
- Flash with the following commands:
cd /tmp
tftp -r xxx-preloader.bin -g x.x.x.x
tftp -r xxx-bl31-uboot.fip -g x.x.x.x
mtd write xxx-preloader.bin spi0.0
mtd write xxx-bl31-uboot.fip FIP
mtd erase ubi
- Set a static ip(192.168.1.254) for your PC.
And then reboot the router. It will run
initramfs image automatically.
- After openwrt boots up, perform sysupgrade
via web UI.
Reverting to the vendor firmware:
- Setup a tftp server on your PC with ip
address 192.168.1.254. And make sure
bl2.img, fip.bin, factory.bin and customer
are located in tftp root directory.
- Power off the router.
- Press and hold WPS key, then power on
the router.
- Release WPS key, when internet/wifi/wps
leds are blinking.
- Wait until internet/wifi/wps leds light
up, power off the router.
- Press and hold reset key, power up the
router, release reset key 15s later.
- Connect to http://192.168.1.1, now you
can upload vendor .bin firmware.
Uboot netconsole:
Uboot netconsole can be enabled by WPS
or reset key.
- Setup a linux PC with ip 192.168.1.254.
Open a new terminal and execute
'stty -isig -echo cbreak; nc -lup 6666'
- Press and hold WPS(or reset) key, then
power on the router.
- Release key once internet/wifi/wps leds
are all on.
NOTE: don't hold the key more than 5s
after internet/wifi/wps leds on, or it
will try to revert to vendor firmware.
- 5s later, uboot bootmenu will show on
the terminal.
Signed-off-by: Zhiwei Cao <bfdeh@126.com>
Link: https://github.com/openwrt/openwrt/pull/18631
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
201 lines
3.2 KiB
Text
201 lines
3.2 KiB
Text
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
|
|
|
|
/dts-v1/;
|
|
#include "mt7981b.dtsi"
|
|
|
|
/ {
|
|
aliases {
|
|
serial0 = &uart0;
|
|
};
|
|
|
|
chosen {
|
|
stdout-path = "serial0:115200n8";
|
|
rootdisk = <&ubi_rootdisk>;
|
|
};
|
|
|
|
memory@40000000 {
|
|
reg = <0 0x40000000 0 0x20000000>;
|
|
device_type = "memory";
|
|
};
|
|
|
|
gpio-keys {
|
|
compatible = "gpio-keys";
|
|
reset {
|
|
label = "reset";
|
|
linux,code = <KEY_RESTART>;
|
|
gpios = <&pio 1 GPIO_ACTIVE_LOW>;
|
|
};
|
|
wps {
|
|
label = "wps";
|
|
linux,code = <KEY_WPS_BUTTON>;
|
|
gpios = <&pio 0 GPIO_ACTIVE_HIGH>;
|
|
};
|
|
};
|
|
};
|
|
|
|
ð {
|
|
status = "okay";
|
|
|
|
gmac0: mac@0 {
|
|
compatible = "mediatek,eth-mac";
|
|
reg = <0>;
|
|
phy-mode = "2500base-x";
|
|
|
|
nvmem-cells = <&macaddr_lan>;
|
|
nvmem-cell-names = "mac-address";
|
|
|
|
fixed-link {
|
|
speed = <2500>;
|
|
full-duplex;
|
|
pause;
|
|
};
|
|
};
|
|
|
|
mac@1 {
|
|
compatible = "mediatek,eth-mac";
|
|
reg = <1>;
|
|
phy-mode = "gmii";
|
|
phy-handle = <&int_gbe_phy>;
|
|
|
|
nvmem-cells = <&macaddr_wan>;
|
|
nvmem-cell-names = "mac-address";
|
|
};
|
|
};
|
|
|
|
&mdio_bus {
|
|
switch: switch@1f {
|
|
compatible = "mediatek,mt7531";
|
|
reg = <31>;
|
|
interrupt-controller;
|
|
#interrupt-cells = <1>;
|
|
interrupt-parent = <&pio>;
|
|
interrupts = <38 IRQ_TYPE_LEVEL_HIGH>;
|
|
reset-gpios = <&pio 39 GPIO_ACTIVE_HIGH>;
|
|
};
|
|
};
|
|
|
|
&crypto {
|
|
status = "okay";
|
|
};
|
|
|
|
&pio {
|
|
spi0_flash_pins: spi0-pins {
|
|
mux {
|
|
function = "spi";
|
|
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 {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&spi0_flash_pins>;
|
|
status = "okay";
|
|
|
|
spi_nand@0 {
|
|
compatible = "spi-nand";
|
|
reg = <0>;
|
|
spi-max-frequency = <52000000>;
|
|
spi-tx-bus-width = <4>;
|
|
spi-rx-bus-width = <4>;
|
|
|
|
partitions {
|
|
compatible = "fixed-partitions";
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
|
|
partition@0 {
|
|
label = "BL2";
|
|
reg = <0x0 0x100000>;
|
|
};
|
|
|
|
partition@100000 {
|
|
label = "u-boot-env";
|
|
reg = <0x100000 0x80000>;
|
|
};
|
|
|
|
partition@180000 {
|
|
label = "Factory";
|
|
reg = <0x180000 0x200000>;
|
|
nvmem-layout {
|
|
compatible = "fixed-layout";
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
|
|
eeprom_factory_0: eeprom@0 {
|
|
reg = <0x0 0x1000>;
|
|
};
|
|
|
|
macaddr_lan: macaddr@1fef20 {
|
|
reg = <0x1fef20 0x6>;
|
|
};
|
|
|
|
macaddr_wan: macaddr@1fef26 {
|
|
reg = <0x1fef26 0x6>;
|
|
};
|
|
};
|
|
};
|
|
|
|
partition@380000 {
|
|
label = "FIP";
|
|
reg = <0x380000 0x200000>;
|
|
};
|
|
|
|
partition@580000 {
|
|
label = "ubi";
|
|
reg = <0x580000 0x7280000>;
|
|
compatible = "linux,ubi";
|
|
|
|
volumes {
|
|
ubi_rootdisk: ubi-volume-fit {
|
|
volname = "fit";
|
|
};
|
|
};
|
|
};
|
|
};
|
|
};
|
|
};
|
|
|
|
&switch {
|
|
ports {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
port@6 {
|
|
reg = <6>;
|
|
ethernet = <&gmac0>;
|
|
phy-mode = "2500base-x";
|
|
|
|
fixed-link {
|
|
speed = <2500>;
|
|
full-duplex;
|
|
pause;
|
|
};
|
|
};
|
|
};
|
|
};
|
|
|
|
&uart0 {
|
|
status = "okay";
|
|
};
|
|
|
|
&watchdog {
|
|
status = "okay";
|
|
};
|
|
|
|
&wifi {
|
|
status = "okay";
|
|
nvmem-cells = <&eeprom_factory_0>;
|
|
nvmem-cell-names = "eeprom";
|
|
};
|