OpenEmbed SOM7981

abgn+ac+ax (AX3000)
Single Board Computer
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Supported
Tomato any flavor	Incompatible
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	OpenEmbed SOM7981
FCC ID	none specified
Type	single-board computer, SoM
CPU1	MediaTek MT7981BA
CPU1 Type	ARM Cortex-A53 (Filogic 820)
CPU1 Speed	1.3 GHz ( 2 cores ) 64-bit
Flash1 Chip	Winbond Model?
Flash1 Size	256 MiB268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br /> (NAND)
Flash2 Size	32 GiB 32,768 MiB <br />34,359,738,368 B <br />268,435,456 Kib <br />33,554,432 KiB <br />262,144 Mib <br /> (eMMC)
RAM1 Size	512 MiB536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br /> (DDR4)
RAM1 Chip	Micron D9WHF
ETH chip1	MediaTek MT7981BA
ETH chip2	Realtek RTL8221B
Ethernet Port Count	1-2.5GbE-WAN 1-1GbE-LAN
Wired Standard	IEEE 802.3i/3u/3ab/3bz
802dot11 OUI: none specified
Stock bootloader	U-Boot
Expansion IF types	USB 3.0
USB ports	1
USB Hub Compatible	Untested
Power	? VDC, ? A
Connector type	USB (Type-C) PD
Serial Port (UART)	yes, 3.3, (115200 8N1)
Other
3rd Party Firmware Support	OpenWrt • (List | Dev | DLs)
Radio 1
Chip1	MediaTek MT7981BA
Chip2	MediaTek MT7976CN
Wireless interface OUI	none specified
Antenna Connector Type	none specified
MIMO status	2x2:2
Wireless Standard	IEEE 802.11b/g/n/ax
802.11ax	up to 574 Mbps
802.11n	up to 300 Mbps
802.11g	up to 54 Mbps
802.11b	up to 11 Mbps
WiFi Operating Frequency	2.4 GHz
Radio 2
Chip1	MediaTek MT7981BA
Chip2	MediaTek MT7976CN
Wireless interface OUI	none specified
Antenna Connector Type	none specified
MIMO status	2x3:2
Wireless Standard	IEEE 802.11a/n/ac/ax
AX-QAM	up to 2402 Mbps
802.11ax	up to 1201 Mbps
802.11ac	up to 867 Mbps
802.11n	up to 300 Mbps
802.11a	up to 54 Mbps
WiFi Operating Frequency	5 GHz

For a list of all currently documented MediaTek chipsets with specifications, see MediaTek.
For a list of all currently documented Realtek chipsets with specifications, see Realtek.

• 2402 Mbps - 2SS 5GHz 802.11ax (160MHz chan.)

• 574 Mbps - 2SS 2.4GHz 802.11ax (40MHz chan.) = AX3000 class

Overview

Hardware specification

Add support for OpenEmbed SOM7981 (Git)

• SoC: MediaTek MT7981BA 2x ARM (Cortex-A53)
• Flash: 256MiB (SPI NAND), 32GB (eMMC) optional
• RAM: 512MB/1GB (DDR4) SDRAM
• Ethernet: 1x 1GbE, 1x 2.5GbE (RTL8221B)
• Wi-Fi: MediaTek MT7981BA/MT7976CN
• USB: 1x USB 3.0 port
• GPIO: 26-pin header
• UART: 6 (GND), 8 (TX), 10 (RX) (in pin header)
• Button: Reset, WPS
• Power: USB (Type-C) PD

Flashing

Flashing OpenWrt

On the OpenWrt ToH (techdata entry)
On the github
OpenWrt Target: mediatek
OpenWrt Subtarget: filogic
OpenWrt Package architecture: aarch64_cortex-a53
Support started version: ?
Current supported version: snapshot
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