Before the PCIe features can be programmed FSP-S must set non
public bits in the EnumInitPhaseAfterPciEnumeration callback.
Violating this rule causes system instabilities and reboot loops,
depending on the selected features and hardware plugged into slots.
Since FSP-S can handle all types of PCIe features disable all of
them in coreboot and let FSP set the bits at the right time.
TEST=Can boot on AMD/glinda with ASPM L1SS enabled without seeing
system crashed.
Change-Id: Ib4c4597c91d6612018e4f55e1a989a676aff842d
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/91164
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
7493b41f37