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mb/google/rex: Set frequency and gears for SaGv points 

Update SaGv gears and frequency values as per recommendation
from power and performance team. This change doesn't cause
negative impact on firmware boot time performance.

BUG=b:274137879
TEST=Verified the settings on google/rex using debug FSP logs.

Signed-off-by: Bora Guvendik <bora.guvendik@intel.com>
Change-Id: Ie8a81c05f25b1cdab1008d09c606d1debea6e6e4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78268
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
This commit is contained in:
Bora Guvendik 2023-10-06 11:10:09 -07:00 committed by Matt DeVillier
parent 204a4e6d9f
commit cfec7a26c6
1 changed files with 5 additions and 5 deletions
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10
src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb
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@ -50,17 +50,17 @@ chip soc/intel/meteorlake
register "sagv" = "SAGV_ENABLED"
register "sagv_freq_mhz[0]" = "3200"
register "sagv_freq_mhz[0]" = "2133"
register "sagv_gear[0]" = "4"
register "sagv_freq_mhz[1]" = "6000"
register "sagv_freq_mhz[1]" = "4267"
register "sagv_gear[1]" = "4"
register "sagv_freq_mhz[2]" = "6400"
register "sagv_freq_mhz[2]" = "6000"
register "sagv_gear[2]" = "4"
register "sagv_freq_mhz[3]" = "5600"
register "sagv_gear[3]" = "2"
register "sagv_freq_mhz[3]" = "6400"
register "sagv_gear[3]" = "4"
# Set on-board graphics as primary display
register "skip_ext_gfx_scan" = "1"