It lives! *muahahaha*
U-Boot from https://github.com/jwrdegoede/u-boot-sunxi with branch sunxi-next
Kernel from https://github.com/linux-sunxi/linux-sunxi with branch sunxi-devel (which is the next development branch of the sunxi upstream community)
cubie:~ # cat /proc/cpuinfo processor : 0 model name : ARMv7 Processor rev 4 (v7l) Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xc07 CPU revision : 4 processor : 1 model name : ARMv7 Processor rev 4 (v7l) Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xc07 CPU revision : 4 Hardware : Allwinner sun7i (A20) Family Revision : 0000 Serial : 0000000000000000