Support for Mediatek MT7621 (mipsel)?

Hello,

I have a bunch of MT7621-based devices (in particular, GnuBee disk servers) which would really really like to have a mainline U-Boot instead of the ancient *censored* they ship with.

Is there anybody out there who wants to take a stab at forward-porting the stuff to mainline? As far as I can see, U-Boot currently only supports MT7628.

Whoever does the work will get one of these GnuBee things to play with. I won't want it back if I get a working U-Boot instead.