The Mali GPU driver is still stuck in proprietary limbo though, AFAIK. Rockchip can't release the code without ARM's permission, and ARM has only released partial support as of now. They claim that it's working, though I am still trying to get a complete X11/Wayland driver running myself (mostly due to all the android dependencies which I don't need under pure Linux)
For instance, the vpu kernel driver (GPL license) is now open: https://github.com/omegamoon/rockchip-rk30xx-mk808/blob/mast...
And the libstagefright (includes libvpu) as Apache license: https://github.com/HermanChen/Rockchip_4.2_release_libstagef...
The Mali GPU driver is still stuck in proprietary limbo though, AFAIK. Rockchip can't release the code without ARM's permission, and ARM has only released partial support as of now. They claim that it's working, though I am still trying to get a complete X11/Wayland driver running myself (mostly due to all the android dependencies which I don't need under pure Linux)
http://community.arm.com/message/21331 http://malideveloper.arm.com/develop-for-mali/drivers/open-s...
So things are getting better, though there is still some wide gaping holes in development.