Mikrotik: Where is ath79 for mikrotik

Where is ath79 for mikrotik?

Waiting for someone to properly reimplement whole hacky mess made in ar71xx for Mikrotik only.
For example I started doing something and gave up since I could not get the damn sysupgrade to work.

Personally I don't care about a sysupgrade for my mikrotik rb-493g. I am happy to netboot a image and do a full reprogram. Is there a working nand driver in ath79 for the mikrotik devices?

Well, thats exactly what does not work.
After flashing from netboot it will not boot that.
I have modded the RB91x NAND driver to work

Please continue the discussion in the already existing topics regarding ath79/mikrotik.