[S] Change in coreboot[master]: mb/google/skyrim/var/frostflow: Set DPTC Electrical Parameters

[John Su (Code Review)]

John Su has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/69565 )

Change subject: mb/google/skyrim/var/frostflow: Set DPTC Electrical Parameters
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mb/google/skyrim/var/frostflow: Set DPTC Electrical Parameters

Set DPTC Electrical Parameters form AMD DevHub document #57316.

"system_configuration" = "4"
"slow_ppt_limit_mW" = "15000"
"fast_ppt_limit_mW" = "22000"
"stapm_time_constant_s" = "200"
"thermctl_limit_degreeC" = "100"
"vrm_current_limit_mA" = "28000"
"vrm_maximum_current_limit_mA" = "50000"
"vrm_soc_current_limit_mA" = "10000"

BRANCH=none
BUG=b:257187831
TEST=emerge-skyrim coreboot

Signed-off-by: John Su 
Change-Id: I15a69df1436aba05bc19eaffd79394e5ca9bdb3a
---
M src/mainboard/google/skyrim/variants/frostflow/overridetree.cb
1 file changed, 37 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/65/69565/1

diff --git a/src/mainboard/google/skyrim/variants/frostflow/overridetree.cb b/src/mainboard/google/skyrim/variants/frostflow/overridetree.cb
index a3858c8..5581d40 100644
--- a/src/mainboard/google/skyrim/variants/frostflow/overridetree.cb
+++ b/src/mainboard/google/skyrim/variants/frostflow/overridetree.cb
@@ -1,6 +1,18 @@
 # SPDX-License-Identifier: GPL-2.0-or-later

chip soc/amd/mendocino
+	# System config index
+	register "system_configuration" = "4"
+
+	# Set DPTC Electrical Parameters
+	register "slow_ppt_limit_mW" = "15000"
+	register "fast_ppt_limit_mW" = "22000"
+	register "stapm_time_constant_s" = "200"
+	register "thermctl_limit_degreeC" = "100"
+	register "vrm_current_limit_mA" = "28000"
+	register "vrm_maximum_current_limit_mA" = "50000"
+	register "vrm_soc_current_limit_mA" = "10000"
+
    device domain 0 on
    	device ref gpp_bridge_a on  # Internal GPP Bridge 0 to Bus A
    		device ref xhci_1 on # XHCI1 controller