I tried the latest ‘Linux-Next’ version, from https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/log/?id=refs/tags/next-20160913 and the C2 booted OK, but the Ethernet problem still persists..

.........
eth0: device MAC address 00:1e:06:33:13:6e
meson6-dwmac c9410000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx

Fedora 24 (Workstation Edition)
Kernel 4.8.0-rc6-next-20160913 on an aarch64 (ttyAML0)
.....................
# uname -a
Linux rgc2 4.8.0-rc6-next-20160913 #2 SMP PREEMPT Tue Sep 13 22:35:01 PDT 2016 aarch64 aarch64 aarch64 GNU/Linux

I had tried all the latest patched versions of 4.8-rc4/5/6 for the C2, and all of them still suffer from this problem..   ETH0 is present, and there are no errors shown, but network traffic stops after a short time..   Dropping the link to 100Mbps gives slightly better results, with a longer delay before traffic stops..

Now that this code is in the mainline tree, there is a better chance that this can be fixed..      I have read some reports that the C2 Ethernet link was OK with a certain patched kernel, but I have tried over eight different patch versions, and none of them worked correctly, on my system..

Robert Gadsdon.   September 13, 2016.