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 <michal.zygowski@3mdeb.com>
Change-Id: I8ff7db6ff85cce45b84729be905e6c895a24f6f2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39703
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

0 files changed, 0 insertions, 0 deletions