The validation process verifies that hardware components comply with
the standard hardware specifications. For instance, PCI express
implementation must comply with the hardware PCIe specification
requirements: Electrical, Configuration, Link Protocol and Transaction
Protocol. To perform these tests the hardware must be configured in a
particular state: some feature related to power management need to be
turned off, hot plug should be enabled...
This patch sets the appropriate FSP Updateable Product Data flags to
get the hardware in the proper configuration:
- Enable PCIe hotplug on all ports
- Set clock sources to run free
- Set the FSP compliance test mode flag
This patch is backported from
commit 096ce1444e (soc/intel/alderlake:
Support PCIe hardware compliance test mode)
Change-Id: Idd7a1adf0f53b014093ba70fee599dbb7887a0fc
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70416
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
c0f4b1258d