tree 97be193efcf26c7dec8cd2aa0c669455bbfebfaa
parent 619535778cf7c6b141f8c13b967995327108a50a
author Kilari Raasi <kilari.raasi@intel.com> 1711531831 +0530
committer Martin L Roth <gaumless@gmail.com> 1711944723 +0000

soc/intel/alderlake: Remove FSP_PUBLISH_MBP_HOB config for RPL

The RPL FSP currently uses HECI commands to retrieve the chipset
initialization version because the MBP HOB creation is disabled
(SkipMbpHob=1). This has resulted in an approximate 150ms increase in
boot time. Investigations are ongoing to determine the cause of the
delay when using HECI commands. As an interim solution, this patch sets
SkipMbpHob=0, enabling the use of MBP HOB or acquiring the chipset
initialization version, which is expected to reduce the boot time.

BUG=b:328430167
TEST= Able to build,boot and collect boot time data of brya.

With this patch:
  963:returning from FspMultiPhaseSiInit     1,337,481 (249,046)

Without this patch:
  963:returning from FspMultiPhaseSiInit     1,496,268 (408,194)

Signed-off-by: Kilari Raasi <kilari.raasi@intel.com>
Change-Id: I8a99a57b644732074e41051d99e63576f1edd229
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81446
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Varshit Pandya <pandyavarshit@gmail.com>
Reviewed-by: Ronak Kanabar <ronak.kanabar@intel.com>