allwinner's a complex situation, i'll be taking the opportunity to go over and help them out. luckily, due to a lot of work by a lot of people in the software libre community, the A20 is pretty much fully reverse-engineered, so that we can boot entirely from GPL-compliant source: even the 1080p60 hardware-accelerated video encode/decode engine is properly compliant (without any help from Allwinner!) G2D 2D-acceleration, sorted, and the sunxi-next (mainline) kernel now provides access to the on-board hardware crypto engine. just please be prepared to accept that despite having Virtualisation (it's a Cortex A7) that it's also a $7 tablet-style processor.