[U-Boot] [U-Boot,RFC] rockchip: asus c201 support

[Marty E. Plummer]

So, regarding my old patchset. Thanks to the generous support of Simon,
I have been able to use a google servo board to obtain an output log of
my boot failure. Whereas Simon got the following:

U-Boot SPL 2017.11-rc2-00017-g6cda208-dirty (Oct 19 2017 - 17:20:26)
Trying to boot from SPI


U-Boot 2017.11-rc2-00017-g6cda208-dirty (Oct 19 2017 - 17:20:26 -0600)

Model: Google Speedy
DRAM:  2 GiB
MMC:   dwmmc at ff0c0000: 1, dwmmc at ff0d0000: 2, dwmmc at ff0f0000: 0
Using default environment

In:    cros-ec-keyb
Out:   vidconsole
Err:   vidconsole
Model: Google Speedy
Net:   Net Initialization Skipped
No ethernet found.
Hit any key to stop autoboot:  0
=>

On his 2 GiB Asus C201, I only get the following:

U-Boot SPL 2017.11-rc2-00017-g6cda208-dirty (Oct 19 2017 - 17:20:26)
Trying to boot from SPI


U-Boot 2017.11-rc2-00017-g6cda208-dirty (Oct 19 2017 - 17:20:26 -0600)

Model: Google Speedy
DRAM:  0 Bytes

Further, after rebasing my patch against master to commit
ec1754f091c3c06d76592a3f9fecf6184f27e4c9 I don't get any output at all,
except for one of those unicode mojibake <?> characters everytime I hit
the servo reset button.

It seems somewhere along the lines between
0def58f7fd (upstream/master) Merge git://git.denx.de/u-boot-x86
and
ec1754f091 (upstream/master) Prepare v2018.05-rc3
something went funky.

If someone with one of the supported rockchip chromebooks could dry the
above commit I would greatly appreciate it.

Regards,

Marty