mediatek: add support for Mercusys MR85X

This commit adds support for Mercusys MR85X router.

Device specification:
 - SoC: Mediatek MT7981b, Cortex-A53, 64-bit
 - RAM: 512MB
 - Flash: SPI NAND GigaDevice GD5F1GQ5UEYIGY (128 MB)
 - Ethernet: Realtek rtl8367s + 2.5Gbe Airoha en8811h
 - Ethernet: 1x2.5Gbe (WAN 2.5Gbps), 3xGbe (LAN 1Gbps, port0, port1, port2)
 - Wireless: 2.4GHz (802.11 b/g/n/ax)
 - Wireless: 5GHz (802.11 a/n/ac/ax)
 - LEDs: 1 amber and 1 green status LEDs, 4 green gpio-controlled LEDs
   on ethernet ports
 - Buttons: 2 (reset,wps)
 - Bootloader: Main U-Boot - U-Boot 2022.07-rc3. Additionally, both UBI
   slots contain "seconduboot" (also U-Boot 2022.07-rc3)

Installation (UART):
 - Place OpenWrt initramfs-kernel image on tftp server with IP 192.168.1.2
 - Attach UART, switch on the router and interrupt the boot process by
   pressing 'Ctrl-C'.
 - Set the uboot environment for startup.
   setenv tp_boot_idx 0; saveenv
   If the bootarg is set to boot from ubi1, also change it to ubi0.
 - Load and run OpenWrt initramfs image.
   setenv serverip 192.168.1.2; setenv ipaddr 192.168.1.1; tftpboot initramfs-kernel.bin; bootm
 - Browse IP 192.168.1.1, upload the 'sysupgrade' image and do upgrade.

Recovery:
 - Press Reset button and power on the router.
 - Navigate to U-Boot recovery web server (http://192.168.1.1/) and
   upload the OEM firmware.

Stock layout:
0x000000000000-0x000000200000 : "boot"
0x000000200000-0x000000300000 : "u-boot-env"
0x000000300000-0x000003500000 : "ubi0"
0x000003500000-0x000006700000 : "ubi1"
0x000006700000-0x000006f00000 : "userconfig"
0x000006f00000-0x000007300000 : "tp_data"

ubi0/ubi1 format:
U-Boot at boot checks that all volumes are in place:
+-------------------------------+
| Volume Name: uboot   Vol ID: 0|
| Volume Name: kernel  Vol ID: 1|
| Volume Name: rootfs  Vol ID: 2|
+-------------------------------+

MAC addresses:
+---------+-------------------+-----------+
|         | MAC               | Algorithm |
+---------+-------------------+-----------+
| label   | 00:FF:xx:xx:xx:EE | label     |
| WAN     | 00:FF:xx:xx:xx:EF | label+1   |
| LAN     | 00:FF:xx:xx:xx:EE | label     |
| WLAN 2g | 00:FF:xx:xx:xx:ED | label-1   |
| WLAN 5g | 00:FF:xx:xx:xx:EC | label-2   |
+---------+-------------------+-----------+
label MAC address was found in UBI partition "tp_data", file "default-mac".
OEM wireless eeprom is also there, file "MT7981_EEPROM.bin".

Signed-off-by: Schneider Azima <Schneider-Azima12@protonmail.com>
Link: https://github.com/openwrt/openwrt/pull/19187
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Schneider Azima 2025-11-28 05:37:25 -05:00 committed by Hauke Mehrtens
parent c79c32b4e5
commit b2648d8951
9 changed files with 250 additions and 3 deletions

View File

@ -88,6 +88,7 @@ jdcloud,re-cp-03)
;;
buffalo,wsr-6000ax8|\
mercusys,mr80x-v3|\
mercusys,mr85x|\
mercusys,mr90x-v1|\
routerich,ax3000|\
routerich,ax3000-v1|\

View File

@ -0,0 +1,218 @@
// SPDX-License-Identifier: GPL-2.0
/dts-v1/;
#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>
#include "mt7981b.dtsi"
/ {
model = "MERCUSYS MR85X";
compatible = "mercusys,mr85x", "mediatek,mt7981";
aliases {
led-boot = &led_status_green;
led-failsafe = &led_status_amber;
led-running = &led_status_green;
led-upgrade = &led_status_green;
serial0 = &uart0;
};
chosen {
stdout-path = "serial0:115200n8";
};
memory@40000000 {
reg = <0 0x40000000 0 0x20000000>;
device_type = "memory";
};
keys {
compatible = "gpio-keys";
button-reset {
label = "reset";
linux,code = <KEY_RESTART>;
gpios = <&pio 1 GPIO_ACTIVE_LOW>;
};
button-wps {
label = "wps";
linux,code = <KEY_WPS_BUTTON>;
gpios = <&pio 0 GPIO_ACTIVE_LOW>;
};
};
leds {
compatible = "gpio-leds";
led_status_amber: led-0 {
color = <LED_COLOR_ID_AMBER>;
function = LED_FUNCTION_STATUS;
gpios = <&pio 4 GPIO_ACTIVE_LOW>;
};
led_status_green: led-1 {
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_STATUS;
gpios = <&pio 5 GPIO_ACTIVE_LOW>;
};
led-2 {
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_LAN;
function-enumerator = <0>;
gpios = <&pio 6 GPIO_ACTIVE_LOW>;
};
led-3 {
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_LAN;
function-enumerator = <1>;
gpios = <&pio 7 GPIO_ACTIVE_LOW>;
};
led-4 {
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_WAN;
gpios = <&pio 9 GPIO_ACTIVE_LOW>;
};
led-5 {
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_LAN;
function-enumerator = <2>;
gpios = <&pio 10 GPIO_ACTIVE_LOW>;
};
};
rtkgsw@0 {
compatible = "mediatek,rtk-gsw";
mediatek,ethsys = <&ethsys>;
mediatek,mdio = <&mdio_bus>;
reset-gpios = <&pio 39 GPIO_ACTIVE_LOW>;
status = "okay";
};
};
&uart0 {
status = "okay";
};
&eth {
status = "okay";
mac@0 {
compatible = "mediatek,eth-mac";
reg = <0>;
phy-mode = "2500base-x";
fixed-link {
speed = <2500>;
full-duplex;
pause;
};
};
mac@1 {
compatible = "mediatek,eth-mac";
reg = <1>;
phy-mode = "2500base-x";
phy-handle = <&phy15>;
};
};
&mdio_bus {
phy15: phy@f {
compatible = "ethernet-phy-id03a2.a411";
reg = <15>;
reset-gpios = <&pio 14 GPIO_ACTIVE_LOW>;
reset-delay-us = <200000>;
reset-post-delay-us = <1000000>;
phy-mode = "2500base-x";
full-duplex;
pause;
};
};
&spi0 {
pinctrl-names = "default";
pinctrl-0 = <&spi0_flash_pins>;
status = "okay";
spi_nand@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "spi-nand";
reg = <0>;
spi-max-frequency = <52000000>;
spi-tx-buswidth = <4>;
spi-rx-buswidth = <4>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "boot";
reg = <0x00000 0x0200000>;
read-only;
};
partition@200000 {
label = "u-boot-env";
reg = <0x0200000 0x0100000>;
};
partition@300000 {
label = "ubi0";
reg = <0x300000 0x3200000>;
};
partition@3500000 {
label = "ubi1";
reg = <0x3500000 0x3200000>;
read-only;
};
partition@6700000 {
label = "userconfig";
reg = <0x6700000 0x800000>;
read-only;
};
partition@6f00000 {
label = "tp_data";
reg = <0x6f00000 0x800000>;
read-only;
};
};
};
};
&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>;
};
};
};
&wifi {
status = "okay";
};

View File

@ -108,6 +108,12 @@ mercusys,mr80x-v3)
ucidef_set_led_netdev "lan3" "lan-3" "green:lan-3" "lan3" "link tx rx"
ucidef_set_led_netdev "wan" "wan" "green:wan" "wan" "link tx rx"
;;
mercusys,mr85x)
ucidef_set_led_switch "lan0" "lan-0" "green:lan-0" "switch0" "0x01"
ucidef_set_led_switch "lan1" "lan-1" "green:lan-1" "switch0" "0x02"
ucidef_set_led_switch "lan2" "lan-2" "green:lan-2" "switch0" "0x04"
ucidef_set_led_netdev "wan" "wan" "green:wan" "eth1" "link tx rx"
;;
mercusys,mr90x-v1|\
mercusys,mr90x-v1-ubi)
ucidef_set_led_netdev "lan-0" "lan-0" "green:lan-0" "lan0" "link tx rx"

View File

@ -149,6 +149,10 @@ mediatek_setup_interfaces()
mediatek,mt7988a-rfb)
ucidef_set_interfaces_lan_wan "lan0 lan1 lan2 lan3 eth2" eth1
;;
mercusys,mr85x)
ucidef_add_switch "switch0" "0:lan0" "1:lan1" "2:lan2" "6@eth0"
ucidef_set_interfaces_lan_wan "eth0.1 eth0.2 eth0.3" eth1
;;
mercusys,mr90x-v1|\
mercusys,mr90x-v1-ubi)
ucidef_set_interfaces_lan_wan "lan0 lan1 lan2" eth1
@ -216,7 +220,8 @@ mediatek_setup_macs()
lan_mac=$(macaddr_add "$wan_mac" 1)
label_mac=$wan_mac
;;
mercusys,mr80x-v3)
mercusys,mr80x-v3|\
mercusys,mr85x)
mac_dirty=$(cat "/tmp/tp_data/default-mac" | sed -n 's/^'"MAC"'://p')
label_mac=$(macaddr_canonicalize "$mac_dirty")
lan_mac=$label_mac

View File

@ -9,7 +9,8 @@ board=$(board_name)
case "$FIRMWARE" in
"mediatek/mt7981_eeprom_mt7976_dbdc.bin")
case "$board" in
mercusys,mr80x-v3)
mercusys,mr80x-v3|\
mercusys,mr85x)
ln -sf /tmp/tp_data/MT7981_EEPROM.bin \
/lib/firmware/$FIRMWARE
;;

View File

@ -150,7 +150,8 @@ case "$board" in
[ "$PHYNBR" = "1" ] && \
macaddr_setbit_la "$(mtd_get_mac_binary rf-eeprom 0x4)" > /sys${DEVPATH}/macaddress
;;
mercusys,mr80x-v3)
mercusys,mr80x-v3|\
mercusys,mr85x)
mac_dirty=$(cat "/tmp/tp_data/default-mac" | sed -n 's/^'"MAC"'://p')
label_mac=$(macaddr_canonicalize "$mac_dirty")
[ "$PHYNBR" = "0" ] && macaddr_add $label_mac -1 > /sys${DEVPATH}/macaddress

View File

@ -14,6 +14,7 @@ mount_ubi_part() {
preinit_mount_cfg_part() {
case $(board_name) in
mercusys,mr80x-v3|\
mercusys,mr85x|\
mercusys,mr90x-v1|\
tplink,archer-ax80-v1|\
tplink,be450|\

View File

@ -183,6 +183,7 @@ platform_do_upgrade() {
nand_do_upgrade "$1"
;;
mercusys,mr80x-v3|\
mercusys,mr85x|\
mercusys,mr90x-v1|\
tplink,archer-ax80-v1|\
tplink,be450|\

View File

@ -1927,6 +1927,19 @@ define Device/mercusys_mr80x-v3
endef
TARGET_DEVICES += mercusys_mr80x-v3
define Device/mercusys_mr85x
DEVICE_VENDOR := MERCUSYS
DEVICE_MODEL := MR85X
DEVICE_DTS := mt7981b-mercusys-mr85x
DEVICE_DTS_DIR := ../dts
DEVICE_PACKAGES := kmod-mt7915e kmod-mt7981-firmware mt7981-wo-firmware kmod-phy-airoha-en8811h swconfig kmod-switch-rtl8367s
UBINIZE_OPTS := -E 5
BLOCKSIZE := 128k
PAGESIZE := 2048
IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
endef
TARGET_DEVICES += mercusys_mr85x
define Device/mercusys_mr90x-v1
DEVICE_VENDOR := MERCUSYS
DEVICE_MODEL := MR90X v1