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Device is the same as Xiaomi Mi Router 4A Gigabit, except of: - 5G WiFi is MT7663 - addresses of leds, wifi and eth ports are slightly changed Specs: SoC: MT7621 CPU: 2 x 880 MHz ROM: 16 MB RAM: 128 MB WLAN: MT7603, MT7663 MAC addresses: WAN **** factory 0xe006 (label) LAN *:f7 factory 0xe000 2.4 GHz *:f8 factory 0x0000+0x4 (mtd-eeprom+0x4) 5 GHz *:f9 factory 0x8000+0x4 (mtd-eeprom+0x4) Installation: Factory firmware is based on a custom OpenWrt 17.x. Installation is the same as for Xiaomi Mi Router 4A Gigabit. Probably the easiest way to install is to use the script from this repository: https://github.com/acecilia/OpenWRTInvasion/pull/155 In a more advanced case, you can do everything yourself: - gain access to the device through one of the exploits described in the link above - upload sysupgrade image to /tmp - overwrite stock firmware: # mtd -e OS1 -r write /tmp/sysupgrade.bin OS1 Recovery: Recovery procedure is the same as for Xiaomi Mi Router 4A Gigabit. Possible options can be found here: https://openwrt.org/inbox/toh/xiaomi/xiaomi_mi_router_4a_gigabit_edition One of the ways is to use another router with OpenWrt: - connect both routers by their LAN ports - download stock firmware from [1] - place it inside /tmp/test.bin on the main router - configure PXE/TFTP on the main router - power off 4Av2, hold Reset button, power on - as soon as image download via TFTP starts, Reset can be released - blinking blue wan LED will indicate the end of the flashing process, now router can be rebooted [1] http://cdn.cnbj1.fds.api.mi-img.com/xiaoqiang/rom/r4av2/miwifi_r4av2_firmware_release_2.30.28.bin Signed-off-by: Dmitry Sokolov <e323w@proton.me>
139 lines
2.1 KiB
Plaintext
139 lines
2.1 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
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#include "mt7621.dtsi"
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/input/input.h>
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/ {
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aliases {
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led-boot = &led_status_yellow;
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led-failsafe = &led_status_yellow;
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led-running = &led_status_blue;
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led-upgrade = &led_status_yellow;
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};
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chosen {
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bootargs = "console=ttyS0,115200n8";
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};
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keys {
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compatible = "gpio-keys";
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reset {
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label = "reset";
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gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
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linux,code = <KEY_RESTART>;
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};
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};
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};
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&spi0 {
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status = "okay";
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flash@0 {
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compatible = "jedec,spi-nor";
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reg = <0>;
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spi-max-frequency = <50000000>;
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m25p,fast-read;
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partitions: partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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partition@0 {
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label = "u-boot";
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reg = <0x0 0x30000>;
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read-only;
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};
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partition@30000 {
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label = "u-boot-env";
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reg = <0x30000 0x10000>;
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read-only;
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};
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partition@40000 {
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label = "Bdata";
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reg = <0x40000 0x10000>;
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read-only;
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};
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factory: partition@50000 {
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label = "factory";
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reg = <0x50000 0x10000>;
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read-only;
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};
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partition@60000 {
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label = "crash";
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reg = <0x60000 0x10000>;
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read-only;
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};
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partition@70000 {
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label = "cfg_bak";
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reg = <0x70000 0x10000>;
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read-only;
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};
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partition@80000 {
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label = "overlay";
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reg = <0x80000 0x100000>;
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read-only;
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};
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firmware: partition@180000 {
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compatible = "denx,uimage";
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label = "firmware";
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reg = <0x180000 0xe80000>;
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};
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};
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};
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};
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&pcie {
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status = "okay";
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};
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&pcie0 {
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wifi0: wifi@0,0 {
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compatible = "mediatek,mt76";
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reg = <0x0000 0 0 0 0>;
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};
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};
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&pcie1 {
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wifi1: wifi@0,0 {
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compatible = "mediatek,mt76";
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reg = <0x0000 0 0 0 0>;
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};
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};
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&gmac0 {
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nvmem-cells = <&macaddr_factory_e000>;
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nvmem-cell-names = "mac-address";
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};
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&state_default {
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gpio {
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groups = "jtag", "uart2", "uart3", "wdt";
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function = "gpio";
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};
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};
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&factory {
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compatible = "nvmem-cells";
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#address-cells = <1>;
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#size-cells = <1>;
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macaddr_factory_e000: macaddr@e000 {
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reg = <0xe000 0x6>;
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};
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macaddr_factory_e006: macaddr@e006 {
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reg = <0xe006 0x6>;
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};
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};
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