From 71c5dfc01ee390a64605f679420485b7f7cfc389 Mon Sep 17 00:00:00 2001
From: Kenneth Chan <kenneth.chan@quanta.corp-partner.google.com>
Date: Thu, 23 Dec 2021 18:15:01 +0800
Subject: [PATCH] mb/google/guybrush/var/dewatt: disable unused PCIe clock
 setting

GPP_CLK1 is used for SD and GPP_CLK2 is for WWAN on guybrush.
Disable unused PCIe GPP_CLK1 and GPP_CLK2 for dewatt.

BUG=b:211566312
TEST=emerge-guybrush coreboot

Signed-off-by: Kenneth Chan <kenneth.chan@quanta.corp-partner.google.com>
Change-Id: If449453bc60ed41e104346429babc06a73acef64
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60328
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Rob Barnes <robbarnes@google.com>
---
 src/mainboard/google/guybrush/variants/dewatt/overridetree.cb | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/mainboard/google/guybrush/variants/dewatt/overridetree.cb b/src/mainboard/google/guybrush/variants/dewatt/overridetree.cb
index 5366d68587..f34bac86a0 100644
--- a/src/mainboard/google/guybrush/variants/dewatt/overridetree.cb
+++ b/src/mainboard/google/guybrush/variants/dewatt/overridetree.cb
@@ -58,6 +58,10 @@ chip soc/amd/cezanne
 		},
 	}"
 
+        # general purpose PCIe clock output configuration
+        register "gpp_clk_config[1]" = "GPP_CLK_OFF"
+        register "gpp_clk_config[2]" = "GPP_CLK_OFF"
+
 	# I2C Config
 	#+-------------------+---------------------------+
 	#| Field             |  Value                    |