openwrt/target/linux/ramips/dts/mt7621_cudy_x6-v2.dts
Felix Baumann e38de40f8d ramips: mt7621: add support for Cudy X6 v2
Rename existing device to v1 and create common .dtsi
Difference to v1: 16MB Flash

Specifications:

SoC: MediaTek MT7621
RAM: 256 MB
Flash: 16 MB (SPI NOR, XM25QH128C on my device)
WiFi: MediaTek MT7915E
Switch: 1 WAN, 4 LAN (Gigabit)
Buttons: Reset, WPS
LEDs: Two Power LEDs (blue and red; together they form purple)
Power: DC 12V 1A center positive
Serial: 115200 8N1
        C440 - (3V3 - GND - RX - TX) - C41 | v1 and v2
               (P   - G   - R  - T)        | v2 labels them on the board
Installation:

Download and flash the manufacturer's built OpenWrt image available at
http://www.cudytech.com/openwrt_software_download
Install the new OpenWrt image via luci (System -> Backup/Flash firmware)
Be sure to NOT keep settings.

Recovery:

Loads only signed manufacture firmware due to bootloader RSA verification
Serve tftp-recovery image as /recovery.bin on 192.168.1.88/24
Connect to any lan ethernet port
Power on the device while holding the reset button
Wait at least 8 seconds before releasing reset button for image to
download

MAC addresses as verified by OEM firmware:

use   address             source
LAN   f4:a4:54:86:75:a2   label
WAN   f4:a4:54:86:75:a3   label + 1
2g    f4:a4:54:86:75:a2   label
5g    f6:a4:54:b6:75:a2   label + LA-Bit set + 4th oktet increased

The label MAC address is found in bdinfo 0xde00.

Signed-off-by: Felix Baumann <felix.bau@gmx.de>
2023-05-02 18:24:52 +02:00

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Plaintext

// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
#include "mt7621_cudy_x6.dtsi"
/ {
compatible = "cudy,x6-v2", "mediatek,mt7621-soc";
model = "CUDY X6 v2";
};
&partitions {
partition@50000 {
compatible = "denx,uimage";
label = "firmware";
reg = <0x50000 0xf80000>;
};
partition@fd0000 {
label = "debug";
reg = <0xfd0000 0x10000>;
read-only;
};
partition@fe0000 {
label = "backup";
reg = <0xfe0000 0x10000>;
read-only;
};
partition@ff0000 {
label = "bdinfo";
reg = <0xff0000 0x10000>;
read-only;
compatible = "nvmem-cells";
#address-cells = <1>;
#size-cells = <1>;
macaddr_bdinfo_de00: macaddr@de00 {
reg = <0xde00 0x6>;
};
};
};
&gmac0 {
nvmem-cells = <&macaddr_bdinfo_de00>;
nvmem-cell-names = "mac-address";
};
&gmac1 {
nvmem-cells = <&macaddr_bdinfo_de00>;
nvmem-cell-names = "mac-address";
mac-address-increment = <1>;
};
&wifi {
nvmem-cells = <&macaddr_bdinfo_de00>;
nvmem-cell-names = "mac-address";
};