The sources leaked from Allwinner contain GPL violations in U-Boot and Linux kernel and therefore won't easily build with openSUSE's armhf gcc (binaries seem to be softfp).
Initial mainline kernel support is being prepared for v3.19. I succeeded in booting via USB-loaded binary downstream U-Boot, but neither SD nor USB nor Ethernet were enabled yet, so no rootfs.
I have prepared a draft patch for adding MMC/SD nodes to the device tree a week before Hackweek Interstellar, which likely depends on forward-porting pinctrl drivers first.
Upstream U-Boot would be another area that A80 support could be contributed to, for native device tree support.
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