From 6a342360da6f8523fbbbb938cd11327d81d70ebe Mon Sep 17 00:00:00 2001
From: Wonkyu Kim <wonkyu.kim@intel.com>
Date: Thu, 13 Oct 2022 13:40:37 -0700
Subject: [PATCH] mb/google/rex: Skip sending the MBP HOB to save boot time

This change is to skip sending the MBP HOB since coreboot doesn't
use it and also helps to reduce the boot time by ~40 ms.

Boot time data
Before:
* 955:returning from FspSiliconInit 1,656,985 (274,416)
After:
* 955:returning from FspSiliconInit 1,593,036 (233,286)

BUG=b:252410202
TEST=Verified that boot time is reduced by ~40 msec.

Signed-off-by: Wonkyu Kim <wonkyu.kim@intel.com>
Change-Id: I0d4f66940529b8d38d9658c769feba8b5c9b715e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68418
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
---
 src/mainboard/google/rex/variants/rex0/overridetree.cb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/mainboard/google/rex/variants/rex0/overridetree.cb b/src/mainboard/google/rex/variants/rex0/overridetree.cb
index 5cb3ad58b9..2e1c159670 100644
--- a/src/mainboard/google/rex/variants/rex0/overridetree.cb
+++ b/src/mainboard/google/rex/variants/rex0/overridetree.cb
@@ -69,6 +69,8 @@ chip soc/intel/meteorlake
 		[PchSerialIoIndexI2C5] = PchSerialIoPci,
 	}"
 
+	register "skip_mbp_hob" = "1"
+
 	# Intel Common SoC Config
 	#+-------------------+---------------------------+
 	#| Field             |  Value                    |