Just updated the CuBox i4-Pro to Kernel 3.19-rc7 – using the standard code from kernel.org.. with device-tree boot using zImage and imx6q-cubox-i.dtb

Only tested ‘headless’ access, so far..

Fedora release 21 (Twenty One)
Kernel 3.19.0-rc7 on an armv7l (ttymxc0)
..........................
[root@rgcubox ~]# uname -a
Linux rgcubox 3.19.0-rc7 #1 SMP Sat Feb 7 13:36:57 EST 2015 armv7l armv7l armv7l GNU/Linux

Robert Gadsdon.   February 7, 2014.