Attention is currently required from: Tim Wawrzynczak.
Sridhar Siricilla has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/68900 )
Change subject: mb/google/brya : Update EPP value for Vell board ......................................................................
mb/google/brya : Update EPP value for Vell board
The patch updates the EPP value for Vell for better power improvement.
TEST=Verified code build for Vell board
Signed-off-by: Sridhar Siricilla sridhar.siricilla@intel.com Change-Id: I41b15b84025d25cf59dac2d85826a3de9d725bae --- M src/mainboard/google/brya/variants/vell/overridetree.cb 1 file changed, 18 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/00/68900/1
diff --git a/src/mainboard/google/brya/variants/vell/overridetree.cb b/src/mainboard/google/brya/variants/vell/overridetree.cb index 98983ef..1ad24ef 100644 --- a/src/mainboard/google/brya/variants/vell/overridetree.cb +++ b/src/mainboard/google/brya/variants/vell/overridetree.cb @@ -76,6 +76,10 @@ register "tcss_ports[3]" = "TCSS_PORT_DEFAULT(OC3)" register "sagv" = "SaGv_Enabled"
+ # Set EPP to 50%: 50 * 256 / 100 = 0x80 + # It overrides the baseboard EPP value (which is 45%) for better power improvement + register "energy_perf_pref_value" = "0x80" + # FIVR RFI Spread Spectrum 6% register "fivr_spread_spectrum" = "FIVR_SS_6"