[PATCH v3] ramips: mt7621: Add Arcadyan WE420223-99 support

[Arınç ÜNAL]

On 2.01.2023 19:36, Harm Berntsen wrote:
> The Arcadyan WE420223-99 is a WiFi AC simultaneous dual-band access
> point distributed as Experia WiFi by KPN in the Netherlands. It features
> two ethernet ports and 2 internal antennas.
> 
> Specifications
> --------------
> SOC   : Mediatek MT7621AT
> ETH   : Two 1 gigabit ports, built into the SOC
> WIFI  : MT7615DN
> BUTTON: Reset
> BUTTON: WPS
> LED   : Power (green+red)
> LED   : WiFi (green+blue)
> LED   : WPS (green+red)
> LED   : Followme (green+red)
> Power : 12 VDC, 1A barrel plug
> 
> Winbond variant:
> RAM   : Winbond W631GG6MB12J, 1GBIT DDR3 SDRAM
> Flash : Winbond W25Q256JVFQ, 256Mb SPI
> U-Boot: 1.1.3 (Nov 23 2017 - 16:40:17), Ralink 5.0.0.1
> 
> Macronix variant:
> RAM   : Nanya NT5CC64M16GP-DI, 1GBIT DDR3 SDRAM
> Flash : MX25l25635FMI-10G, 256Mb SPI
> U-Boot: 1.1.3 (Dec  4 2017 - 11:37:57), Ralink 5.0.0.1
> 
> Serial
> ------
> The serial port needs a TTL/RS-232 3V3 level converter! The Serial
> setting is 57600-8-N-1. The board has an unpopulated 2.54mm straight pin
> header.
> 
> The pinout is: VCC (the square), RX, TX, GND.
> 
> Installation
> ------------
> See the Wiki page [1] for more details, it comes down to:
> 
> 1. Open the device, take off the heat sink
> 2. Connect the SPI flash chip to a flasher, e.g. a Raspberry Pi. Also
>     connect the RESET pin for stability (thanks @FPSUsername for reporting)
> 3. Make a backup in case you want to revert to stock later
> 4. Flash the squashfs-factory.trx file to offset 0x50000 of the flash
> 5. Ensure the bootpartition variable is set to 0 in the U-Boot
>     environment located at 0x30000
> 
> Note that the U-Boot is password protected, this can optionally be
> removed. See the forum [2] for more details.
> 
> MAC Addresses(stock)
> --------------------
> +----------+------------------+-------------------+
> | use      | address          | example           |
> +----------+------------------+-------------------+
> | Device   | label            | 00:00:00:11:00:00 |
> | Ethernet | + 3              | 00:00:00:11:00:03 |
> | 2g       | + 0x020000f00001 | 02:00:00:01:00:01 |
> | 5g       | + 1              | 00:00:00:11:00:01 |
> +----------+------------------+-------------------+
> 
> The label address is stored in ASCII in the board_data partition
> 
> Notes
> -----
> - This device has a dual-boot partition scheme, but OpenWRT will claim
>    both partitions for more storage space.
> 
> Known issues
> ------------
> - 2g MAC address does not match stock due to missing support for that in
>    macaddr_add
> - Only the power LED is configured by default
> 
> References
> ----------
> [1] https://openwrt.org/inbox/toh/arcadyan/astoria/we420223-99
> [2] https://forum.openwrt.org/t/adding-openwrt-support-for-arcadyan-we420223-99-kpn-experia-wifi/132653
> 
> Signed-off-by: Harm Berntsen <git at harmberntsen.nl>

Acked-by: Arınç ÜNAL <arinc.unal at arinc9.com>

Arınç