mediatek: add support for the GL.iNet GL-MT3000
The MT-3000 is a pocket-sized Wi-Fi 6 router based on MediaTek MT7981.
Specification:
- SoC: MediaTek MT7981B
- CPU: 2x 1.3 GHz Cortex-A53
- Flash: 256 MiB Macronix SPI NAND
- RAM: 512 MiB Nanya DDR4
- WLAN: 2.4 GHz, 5 GHz (MediaTek MT7976CN)
- Ethernet:
- 1x 10/100/1000 Mbps built-in PHY (LAN)
- 1x 10/100/1000/2500 Mbps MaxLinear GPY211 PHY (WAN)
- USB 3.0 port
- Buttons: 1 button, 1 switch
- LEDs: 1x light-blue, 1x warm-white
- Serial console: internal 4-pin header, 115200 8n1
- PWM controlled fan with tacho
- Power: 5 VDC, 3 A (USB Type-C)
Signed-off-by: Daniel Golle <daniel@makrotopia.org>