It's working, but not on the official distribution. For that it would be required some patches in the building for devices using wave300, and a feed for the driver.
To use the driver, you need to build: openwrt, the driver and hostapd, there are scripts for those tasks and to copy and configure everything.
And before that, you need to change the 5ghz name on luci, from wlan0 to wlan5.
Meu roteador foi comprado ali no py
Good luck