openwrt/target/linux/mediatek/dts/mt7981a-ubnt-unifi-6-plus.dts
Elbert Mai 75ee5546e9 mediatek: filogic: add support for Ubiquiti UniFi 6 Plus (U6+)
Ubiquiti U6+ is a dual-band WiFi 6 PoE access point.
It is a drop-in upgrade of the U6 lite.

Specifications
---

- SoC: MediaTek MT7981A dual-core ARM Cortex-A53 1.3 GHz
- RAM: 256 MB DDR3-2133 RAM
- Flash: 16 MB SPI NOR and 4 GB eMMC
- LAN: 1x Gigabit Ethernet with 802.3af/at support
- WLAN: MediaTek MT7976C 2x2 MIMO dual-band WiFi 6
- LEDs: 1x blue and 1x white
- Buttons: 1x reset button

Installation
---

1. Power device using a PoE injector or switch
2. Connect via Ethernet to the device with static IP 192.168.1.2
3. SSH into the device with password: ubnt

        $ ssh ubnt@192.168.1.20

4. Unlock kernel partitions for writing

        $ echo 5edfacbf > /proc/ubnthal/.uf

5. Confirm correct partitions

        $ grep PARTNAME /sys/block/mmcblk0/mmcblk0p6/uevent
        PARTNAME=kernel0
        $ grep PARTNAME /sys/block/mmcblk0/mmcblk0p7/uevent
        PARTNAME=kernel1
        $ grep PARTNAME /sys/block/mmcblk0/mmcblk0p8/uevent
        PARTNAME=bs

6. Set and confirm bootloader environment

        $ fw_setenv boot_openwrt "fdt addr \$(fdtcontroladdr); fdt rm /signature; bootubnt"
        $ fw_setenv bootcmd_real "run boot_openwrt"
        $ fw_printenv

7. Copy sysupgrade image to /tmp/openwrt.bin via scp
8. Copy kernel and rootfs to mmcblk0p6 and mmcblk0p7, respectively

        $ tar xf /tmp/openwrt.bin sysupgrade-ubnt_unifi-6-plus/kernel -O | dd of=/dev/mmcblk0p6
        $ tar xf /tmp/openwrt.bin sysupgrade-ubnt_unifi-6-plus/root -O | dd of=/dev/mmcblk0p7

9. Ensure device boots from mmcblk0p6

        $ echo -ne "\x00\x00\x00\x00\x2b\xe8\x4d\xa3" > /dev/mmcblk0p8

10. Reboot the device

        $ reboot

Signed-off-by: Elbert Mai <code@elbertmai.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
2023-09-24 17:16:16 +02:00

169 lines
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// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/dts-v1/;
#include "mt7981.dtsi"
/ {
model = "Ubiquiti UniFi 6 Plus";
compatible = "ubnt,unifi-6-plus", "mediatek,mt7981";
aliases {
serial0 = &uart0;
led-boot = &led_white;
led-failsafe = &led_white;
led-running = &led_blue;
led-upgrade = &led_blue;
label-mac-device = &gmac1;
};
chosen {
bootargs-override = "console=ttyS0,115200n8 rootwait root=/dev/mmcblk0p7";
stdout-path = "serial0:115200n8";
};
gpio-keys {
compatible = "gpio-keys";
reset {
label = "reset";
linux,code = <KEY_RESTART>;
gpios = <&pio 1 GPIO_ACTIVE_LOW>;
};
};
leds {
compatible = "gpio-leds";
led_blue: dome-blue {
label = "blue:dome";
gpios = <&pio 9 GPIO_ACTIVE_HIGH>;
};
led_white: dome-white {
label = "white:dome";
gpios = <&pio 34 GPIO_ACTIVE_HIGH>;
};
};
};
&uart0 {
status = "okay";
};
&watchdog {
status = "okay";
};
&pio {
spi2_flash_pins: spi2-pins {
mux {
function = "spi";
groups = "spi2", "spi2_wp_hold";
};
conf-pu {
pins = "SPI2_CS", "SPI2_HOLD", "SPI2_WP";
drive-strength = <8>;
bias-pull-up = <103>;
};
conf-pd {
pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO";
drive-strength = <8>;
bias-pull-down = <103>;
};
};
mmc0_pins_default: mmc0-pins-default {
mux {
function = "flash";
groups = "emmc_45";
};
};
mmc0_pins_uhs: mmc0-pins-uhs {
mux {
function = "flash";
groups = "emmc_45";
};
};
};
&spi2 {
pinctrl-names = "default";
pinctrl-0 = <&spi2_flash_pins>;
status = "okay";
flash@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "jedec,spi-nor";
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>;
eeprom: partition@00000 {
label = "EEPROM";
reg = <0x00000 0x10000>;
read-only;
compatible = "nvmem-cells";
#address-cells = <1>;
#size-cells = <1>;
macaddr_eeprom_0: macaddr@0 {
reg = <0x0 0x6>;
};
macaddr_eeprom_6: macaddr@6 {
reg = <0x6 0x6>;
};
};
partition@10000 {
label = "u-boot-env";
reg = <0x10000 0x80000>;
};
};
};
};
&mmc0 {
pinctrl-names = "default", "state_uhs";
pinctrl-0 = <&mmc0_pins_default>;
pinctrl-1 = <&mmc0_pins_uhs>;
bus-width = <8>;
max-frequency = <52000000>;
cap-mmc-highspeed;
vmmc-supply = <&reg_3p3v>;
non-removable;
status = "okay";
};
&eth {
pinctrl-names = "default";
pinctrl-0 = <&mdio_pins>;
status = "okay";
gmac1: mac@1 {
compatible = "mediatek,eth-mac";
reg = <1>;
phy-mode = "gmii";
phy-handle = <&int_gbe_phy>;
nvmem-cell-names = "mac-address";
nvmem-cells = <&macaddr_eeprom_0>;
};
};
&wifi {
status = "okay";
};