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

Restrict memory speed to 6400 MTS as per board design.

BUG=b:282164577
TEST=Verified the settings on google/rex using debug FSP logs.

Signed-off-by: Bora Guvendik <bora.guvendik@intel.com>
Change-Id: I3dec383c7c585b80a73089f3403011c5cda61f65
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75291
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
This commit is contained in:
Bora Guvendik 2023-05-15 14:35:22 -07:00 committed by Felix Held
parent 9f15dee56d
commit e9efd32485
1 changed files with 12 additions and 0 deletions
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12
src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb
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@ -41,6 +41,18 @@ chip soc/intel/meteorlake
register "sagv" = "SAGV_ENABLED"
register "sagv_freq_mhz[0]" = "2133"
register "sagv_gear[0]" = "4"
register "sagv_freq_mhz[1]" = "6000"
register "sagv_gear[1]" = "4"
register "sagv_freq_mhz[2]" = "6400"
register "sagv_gear[2]" = "4"
register "sagv_freq_mhz[3]" = "5600"
register "sagv_gear[3]" = "2"
# Set on-board graphics as primary display
register "skip_ext_gfx_scan" = "1"