Just updated the Cubox-i4Pro to 3.19-rc1, after disabling the kernel options for ‘power management’, as the current patch does not compile cleanly..
Fedora release 21 (Twenty One) Kernel 3.19.0-rc1 on an armv7l (ttymxc0) ........... [root@rgcubox ~]# uname -a Linux rgcubox 3.19.0-rc1 #1 SMP PREEMPT Mon Dec 22 15:22:15 EST 2014 armv7l armv7l armv7l GNU/Linux
Details of Kernel 3.19-rc1 are here: http://lkml.iu.edu/hypermail/linux/kernel/1412.2/02480.html
The (patched) code is available here: https://github.com/jmontleon/fedora-20-cubox-i_hb/tree/3.19-rc1
As limited support seems to be in the mainline kernel.org code, now, I will try that soon..
Robert Gadsdon. December 21, 2014.