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openwrt/target/linux/mediatek/dts/mt7981b-konka-komi-a31.dts
Tianling Shen 8a7de107d8 mediatek: add Konka KOMI A31 support
This board is also as known as E-Life ETR631-T/ETR635-U.

Hardware specification:
  SoC: MediaTek MT7981B 2x A53
  Flash: 128 MB SPI-NAND
  RAM: 256MB DDR3
  Ethernet: 4x 10/100/1000 Mbps
  Switch: MediaTek MT7531AE
  WiFi: MediaTek MT7976C
  Button: Reset, Mesh
  Power: DC 12V 1A

Gain telnet access:
1. Login into web interface, and download the configuration.
2. Uncompress the configuration:
     * Enter fakeroot if you are not login as root.
   tar -zxf <filename>.tar.gz
3. Edit 'etc/passwd', remove root password: 'root::1:0:99999:7:::'.
4. Edit 'etc/rc.local', insert telnetd command before 'exit 0':
   ( sleep 3s; telnetd; ) &
5. Repack the configuration:
   tar -zcf backup.tar.gz etc/
6. Upload new configuration via web interface, now you can connect to
   KOMI A31 via telnet.

Flash instructions:
1. Connect to KOMI A31, backup everything, especially 'Factory' part.
2. Write new BL2:
   mtd write openwrt-mediatek-filogic-konka_komi-a31-preloader.bin BL2
3. Write new FIP:
   mtd write openwrt-mediatek-filogic-konka_komi-a31-bl31-uboot.fip FIP
4. Set static IP on your PC:
   IP 192.168.1.254/24, GW 192.168.1.1
5. Serve OpenWrt initramfs image using TFTP server.
6. Cut off the power and re-engage, wait for TFTP recovery to complete.
7. After OpenWrt has booted, perform sysupgrade.

Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
Link: https://github.com/openwrt/openwrt/pull/20357
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2025-10-23 00:00:04 +02:00

280 lines
4.7 KiB
Plaintext

// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/dts-v1/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/pinctrl/mt65xx.h>
#include "mt7981b.dtsi"
/ {
model = "Konka KOMI A31";
compatible = "konka,komi-a31", "mediatek,mt7981";
aliases {
led-boot = &red_led;
led-failsafe = &red_led;
led-running = &green_led;
led-upgrade = &green_led;
label-mac-device = &gmac1;
serial0 = &uart0;
};
chosen {
bootargs = "root=/dev/fit0 rootwait";
rootdisk = <&ubi_rootdisk>;
stdout-path = "serial0:115200n8";
};
memory@40000000 {
reg = <0 0x40000000 0 0x10000000>;
device_type = "memory";
};
gpio-keys {
compatible = "gpio-keys";
button-mesh {
label = "mesh";
linux,code = <BTN_9>;
linux,input-type = <EV_SW>;
gpios = <&pio 0 GPIO_ACTIVE_LOW>;
};
button-reset {
label = "reset";
linux,code = <KEY_RESTART>;
gpios = <&pio 1 GPIO_ACTIVE_LOW>;
};
};
gpio-leds {
compatible = "gpio-leds";
green_led: led-0 {
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_STATUS;
gpios = <&pio 8 GPIO_ACTIVE_LOW>;
};
led-1 {
color = <LED_COLOR_ID_BLUE>;
function = LED_FUNCTION_STATUS;
gpios = <&pio 13 GPIO_ACTIVE_LOW>;
};
red_led: led-2 {
color = <LED_COLOR_ID_RED>;
function = LED_FUNCTION_STATUS;
gpios = <&pio 34 GPIO_ACTIVE_LOW>;
};
};
};
&eth {
pinctrl-names = "default";
pinctrl-0 = <&mdio_pins>;
status = "okay";
gmac0: mac@0 {
compatible = "mediatek,eth-mac";
reg = <0>;
phy-mode = "2500base-x";
nvmem-cells = <&macaddr_factory_2a 0>;
nvmem-cell-names = "mac-address";
fixed-link {
speed = <2500>;
full-duplex;
pause;
};
};
gmac1: mac@1 {
compatible = "mediatek,eth-mac";
reg = <1>;
phy-mode = "gmii";
phy-handle = <&int_gbe_phy>;
nvmem-cells = <&macaddr_factory_24 0>;
nvmem-cell-names = "mac-address";
};
};
&mdio_bus {
switch: switch@1f {
compatible = "mediatek,mt7531";
reg = <31>;
reset-gpios = <&pio 39 GPIO_ACTIVE_HIGH>;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&pio>;
interrupts = <38 IRQ_TYPE_LEVEL_HIGH>;
};
};
&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-disable; /* bias-disable */
};
conf-pd {
pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO";
drive-strength = <MTK_DRIVE_8mA>;
bias-disable; /* bias-disable */
};
};
};
&spi0 {
pinctrl-names = "default";
pinctrl-0 = <&spi0_flash_pins>;
status = "okay";
spi_nand: flash@0 {
#address-cells = <1>;
#size-cells = <1>;
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>;
read-only;
};
partition@100000 {
label = "u-boot-env";
reg = <0x100000 0x80000>;
};
partition@180000 {
label = "factory";
reg = <0x180000 0x200000>;
read-only;
nvmem-layout {
compatible = "fixed-layout";
#address-cells = <1>;
#size-cells = <1>;
eeprom_factory_0: eeprom@0 {
reg = <0x0 0x1000>;
};
macaddr_factory_24: macaddr@24 {
compatible = "mac-base";
reg = <0x24 0x6>;
#nvmem-cell-cells = <1>;
};
macaddr_factory_2a: macaddr@2a {
compatible = "mac-base";
reg = <0x2a 0x6>;
#nvmem-cell-cells = <1>;
};
};
};
partition@380000 {
label = "fip";
reg = <0x380000 0x200000>;
read-only;
};
partition@580000 {
compatible = "linux,ubi";
label = "ubi";
reg = <0x580000 0x7a80000>;
volumes {
ubi_rootdisk: ubi-volume-fit {
volname = "fit";
};
};
};
};
};
};
&switch {
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
label = "lan1";
};
port@1 {
reg = <1>;
label = "lan2";
};
port@2 {
reg = <2>;
label = "lan3";
};
port@6 {
reg = <6>;
ethernet = <&gmac0>;
phy-mode = "2500base-x";
fixed-link {
speed = <2500>;
full-duplex;
pause;
};
};
};
};
&uart0 {
status = "okay";
};
&watchdog {
status = "okay";
};
&wifi {
#address-cells = <1>;
#size-cells = <0>;
nvmem-cells = <&eeprom_factory_0>;
nvmem-cell-names = "eeprom";
status = "okay";
band@0 {
reg = <0>;
nvmem-cells = <&macaddr_factory_2a 1>;
nvmem-cell-names = "mac-address";
};
band@1 {
reg = <1>;
nvmem-cells = <&macaddr_factory_2a 2>;
nvmem-cell-names = "mac-address";
};
};