[coreboot-gerrit] Change in coreboot[master]: mb/pcengines/apu2: add reset logic for PCIe slots

[Michał Żygowski (Code Review)]

Hello build bot (Jenkins), Paul Menzel, Angel Pons, Piotr Król,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/39703

to look at the new patch set (#2).

Change subject: mb/pcengines/apu2: add reset logic for PCIe slots
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mb/pcengines/apu2: add reset logic for PCIe slots

PC Engines apu2 had many problems with PCIe cards detection. The cards
were inconsistently detected when booted from G3, S5 or after a reboot.
AGESA can reset PCIe slots using GPIO via callback. Use it to reset the
slots that support using GPIO as reset signal.

Signed-off-by: Michał Żygowski 
Change-Id: I8ff7db6ff85cce45b84729be905e6c895a24f6f2
---
M src/mainboard/pcengines/apu2/BiosCallOuts.c
M src/mainboard/pcengines/apu2/OemCustomize.c
M src/mainboard/pcengines/apu2/romstage.c
3 files changed, 94 insertions(+), 5 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/03/39703/2