From 72bc673c4315b049a252ff8a9c29b4fd960bee54 Mon Sep 17 00:00:00 2001
From: John Su <john_su@compal.corp-partner.google.com>
Date: Mon, 14 Nov 2022 15:51:24 +0800
Subject: [PATCH] mb/google/skyrim/var/frostflow: Set Package Power Parameters

Set Package Power Parameters from AMD DevHub document #57316.

"stapm_time_constant_s" = "200"

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

Signed-off-by: John Su <john_su@compal.corp-partner.google.com>
Change-Id: I15a69df1436aba05bc19eaffd79394e5ca9bdb3a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69565
Reviewed-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Frank Wu <frank_wu@compal.corp-partner.google.com>
---
 src/mainboard/google/skyrim/variants/frostflow/overridetree.cb | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mainboard/google/skyrim/variants/frostflow/overridetree.cb b/src/mainboard/google/skyrim/variants/frostflow/overridetree.cb
index a3858c8226..5581499491 100644
--- a/src/mainboard/google/skyrim/variants/frostflow/overridetree.cb
+++ b/src/mainboard/google/skyrim/variants/frostflow/overridetree.cb
@@ -1,6 +1,9 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
 
 chip soc/amd/mendocino
+	# Set Package Power Parameters
+	register "stapm_time_constant_s" = "200"
+
 	device domain 0 on
 		device ref gpp_bridge_a on  # Internal GPP Bridge 0 to Bus A
 			device ref xhci_1 on # XHCI1 controller