openwrt/target/linux/ramips/dts/mt7621_dna_valokuitu-plus-ex400.dts

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ramips: mt7621: Add DNA Valokuitu Plus EX400 Specifications: - Device: DNA Valokuitu Plus EX400 - SoC: MT7621A - Flash: 256MB NAND - RAM: 256MB - Ethernet: Built-in, 2 x 1GbE - Wifi: MT7603 2.4 GHz, MT7615 5 GHz (4x internal antennas) - USB: 1x 3.0 - LED: 1x green/red, 1x green - Buttons: Reset MAC addresses: - LAN: u-boot 'ethaddr' (label) - WAN: label + 1 - 2.4 GHz: label + 6 - 5 GHz: label + 7 Serial: There is a black block connector next to the red ethernet connector. It is accessible also through holes in the casing. Pinout (TTL 3.3V) +---+---+ |Tx |Rx | +---+---+ |Vcc|Gnd| +---+---+ Firmware: The vendor firmware is a fork of OpenWrt (Reboot) with a kernel version 4.4.93. The flash is arranged as below and there is a dual boot mechanism alternating between rootfs_0 and rootfs_1. +-------+------+------+-----------+-----------+ | | env1 | env2 | rootfs_0 | rootfs_1 | | +------+------+-----------+-----------+ | | UBI volumes | +-------+-------------------------------------+ |U-Boot | UBI | +-------+-------------------------------------+ |mtd0 | mtd1 | +-------+-------------------------------------+ | NAND | +---------------------------------------------+ In OpenWrt rootfs_0 will be used as a boot partition that will contain the kernel and the dtb. The squashfs rootfs and overlay are standard OpenWrt behaviour. +-------+------+------+-----------+--------+------------+ | | env1 | env2 | rootfs_0 | rootfs | rootfs_data| | +------+------+-----------+--------+------------+ | | UBI volumes | +-------+-----------------------------------------------+ |U-Boot | UBI | +-------+-----------------------------------------------+ |mtd0 | mtd1 | +-------+-----------------------------------------------+ | NAND | +-------------------------------------------------------+ U-boot: With proper serial access booting can be halted to U-boot by pressing any key. TFTP and flash writes are available, but only the first one has been tested. NOTE: Recovery mode can be accessed by holding down the reset button while powering on the device. The led 'Update' will show a solid green light once ready. A web server will be running at 192.168.1.1:80 and it will allow flashing a firmware package. You can cycle between rootfs_0 and rootfs_1 by pressing the reset button once. Root password: With the vendor web UI create a backup of your settings and download the archive to your computer. Within the archive in the file /etc/shadow replace the password hash for root with that of a password you know. Restore the configuration with the vendor web UI and you will have changed the root password. SSH access: You might need to enable the SSH service for LAN interface as by default it's enabled for WAN only. Installing OpenWrt: With the vendor web UI install the OpenWrt factory image. Alternatively, ssh to the device and use sysupgrade -n from cli. Finalize by installing the OpenWrt sysupgrade image to get a fully functioning system. Reverting to the vendor firmware: Boot with OpenWrt initramfs image - Remove volumes rootfs_0, rootfs and rootfs_data and create vendor volumes. ubirmvol /dev/ubi0 -n 2 ubirmvol /dev/ubi0 -n 3 ubirmvol /dev/ubi0 -n 4 ubimkvol /dev/ubi0 -N rootfs_0 -S 990 ubimkvol /dev/ubi0 -N rootfs_1 -S 990 Power off and enter to the U-boot recovery to install the vendor firmware. Known issues: - MACs for wifi are stored in currently unknown place but it seems to persist over power-off. They might be stored on the chip. Signed-off-by: Mauri Sandberg <maukka@ext.kapsi.fi> [rmilecki: try NVMEM for MACs] Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2023-07-31 12:35:46 +00:00
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
#include "mt7621.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
/ {
compatible = "dna,valokuitu-plus-ex400", "mediatek,mt7621-soc";
model = "DNA Valokuitu Plus EX400";
aliases {
ethernet0 = &gmac0;
label-mac-device = &gmac0;
led-boot = &led_status_red;
led-failsafe = &led_status_red;
led-running = &led_status_green;
led-upgrade = &led_update_green;
};
chosen {
bootargs-override = "console=ttyS0,115200 rootfstype=squashfs,jffs2";
};
keys {
compatible = "gpio-keys";
reset {
label = "reset";
gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RESTART>;
};
};
leds {
compatible = "gpio-leds";
led_status_green: led-0 {
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_STATUS;
gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
};
led_status_red: led-1 {
color = <LED_COLOR_ID_RED>;
function = LED_FUNCTION_STATUS;
gpios = <&gpio 11 GPIO_ACTIVE_HIGH>;
};
led_update_green: led-2 {
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_PROGRAMMING;
gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
};
};
};
&pcie {
status = "okay";
};
&nand {
status = "okay";
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
reg = <0x00 0x100000>;
label = "uboot";
read-only;
};
partition@100000 {
reg = <0x100000 0xff00000>;
label = "ubi";
volumes {
ubi-volume-env1 {
volname = "env1";
nvmem-layout {
compatible = "u-boot,env";
ethaddr: ethaddr {
#nvmem-cell-cells = <1>;
};
};
};
};
};
};
};
&gmac1 {
label = "wan";
phy-handle = <&ethphy0>;
nvmem-cells = <&ethaddr 1>;
nvmem-cell-names = "mac-address";
status = "okay";
};
&i2c {
status = "okay";
};
&ethphy0 {
/delete-property/ interrupts;
};
&state_default {
gpio {
groups = "uart2", "uart3";
function = "gpio";
};
};
&switch0 {
ports {
port@1 {
label = "lan";
nvmem-cells = <&ethaddr 0>;
nvmem-cell-names = "mac-address";
status = "okay";
};
};
};