Issues with the pine A64+ board (no ethernet, hdmi stops, etc)

[Rodrigo Osorio]

Hi,

Today I try to run pine64 images in my pine A64+ board[1]
and found some blocking issues:

- No ethernet device not found
- No sound device
- Only one USB connector seems to work
- HDMI only work during the first part of the boot sequence (tested with 
the 12.1 only)
- pciconf -lv result is empty

I try the 12.0-RELEASE , 12.1-RELEASE and 13.0-CURRENT (20200514)

12.0:
Serial output: http://files.osorio.me/pine64-logs/pine64-12.0.boot.txt

12.1:
Serial output: http://files.osorio.me/pine64-logs/pine64-12.1.boot.txt
Errors: Module simplebus/awg failed to register: 17
         Module awg/miibus failed to register: 17

13.0:
Serial output: 
http://files.osorio.me/pine64-logs/pine64-13-20200514.boot.txt

I also did the test with the 12.1-RELEASE LTS, but u-boot fails with the
following message:

U-Boot SPL 2019.07 (Nov 01 2019 - 01:52:40 +0000)
DRAM: 0 MiB
### ERROR ### Please RESET the board ###

Hope this helps,

All the best,
-- rodrigo

[1] https://www.pine64.org/devices/single-board-computers/pine-a64/