From 031c1e0f9c893caa00498d26867e2b4e956a5032 Mon Sep 17 00:00:00 2001
From: Tony Huang <tony-huang@quanta.corp-partner.google.com>
Date: Fri, 3 May 2024 11:41:10 +0800
Subject: mb/google/rex/var/deku: Update FVM itrip for VR domain
Adjust setting is from power team.
Itrip(GT) FVM 54
Itrip(SA) FVM 27
BUG=b:320410462
BRANCH=firmware-rex-15709.B
TEST= FSP debug emerge-ovis coreboot intel-mtlfsp
check overrides setting
Change-Id: I6d6cf7cecaac650a7b1784833b4afb8dffb3db2c
Signed-off-by: Tony Huang <tony-huang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82176
Reviewed-by: Derek Huang <derekhuang@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
src/mainboard/google/rex/variants/deku/overridetree.cb | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'src')
diff --git a/src/mainboard/google/rex/variants/deku/overridetree.cb b/src/mainboard/google/rex/variants/deku/overridetree.cb
index 070f596d3d..799872948d 100644
--- a/src/mainboard/google/rex/variants/deku/overridetree.cb
+++ b/src/mainboard/google/rex/variants/deku/overridetree.cb
@@ -54,6 +54,17 @@ chip soc/intel/meteorlake
},
}"
+ # As per doc 640982, Intel MTL-U 28W CPU supports FVM on GT and SA
+ # The ICC Limit is represented in 1/4 A increments, i.e., a value of 400 = 100A
+ # For GT VR configuration
+ register "enable_fast_vmode[VR_DOMAIN_GT]" = "1"
+ register "cep_enable[VR_DOMAIN_IA]" = "1"
+ register "fast_vmode_i_trip[VR_DOMAIN_GT]" = "216" # 54A
+ # For SA VR configuration
+ register "enable_fast_vmode[VR_DOMAIN_SA]" = "1"
+ register "cep_enable[VR_DOMAIN_SA]" = "1"
+ register "fast_vmode_i_trip[VR_DOMAIN_SA]" = "108" # 27A
+
device domain 0 on
device ref dtt on
chip drivers/intel/dptf
--
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