mb/pcengines/apu1/platform_cfg.h: Unset UsbRxMode to avoid platform reset issue

On PC Engines apu1 there were issues with cold reset. Platform hangs
in boot path after performing reset using CF9h.
CB:10549 (amd/sb800: Make UsbRxMode per-board customizable)
mentions a similar issue, and added a configuration macro for it.
That error is also described in AMD SB800 Family Product Errata,
section 15 USB Resets Asynchronously With Port CF9h Hard Reset.

This workaround simply non-execute USB configuration during boot
and hence no reset via CF9h is done.

TEST=perform multiple cold resets and see if platform boots

Signed-off-by: Piotr Kleinschmidt <piotr.kleinschmidt@3mdeb.com>
Change-Id: Ie6cebcfc4b77e121ef44a25fa81377eb5e1f0644
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41627
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions