[S] Change in coreboot[master]: mb/google/dedede/var/boxy: Add EXT_VR for boxy

[Kevin3 Yang (Code Review)]

Kevin3 Yang has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/74889 )

Change subject: mb/google/dedede/var/boxy: Add EXT_VR for boxy
......................................................................

mb/google/dedede/var/boxy: Add EXT_VR for boxy

Add EXT_VR for boxy

BUG=b:277529068
TEST=emerge-dedede coreboot

Signed-off-by: kevin3.yang 
Change-Id: Ic6667e93de41e84f67363ab7554fe755fe50684a
---
M src/mainboard/google/dedede/variants/boxy/MakeFile.inc
A src/mainboard/google/dedede/variants/boxy/ramstage.c
2 files changed, 32 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/89/74889/1

diff --git a/src/mainboard/google/dedede/variants/boxy/MakeFile.inc b/src/mainboard/google/dedede/variants/boxy/MakeFile.inc
index eb2c9bc..66f0263 100644
--- a/src/mainboard/google/dedede/variants/boxy/MakeFile.inc
+++ b/src/mainboard/google/dedede/variants/boxy/MakeFile.inc
@@ -1,3 +1,4 @@
 ## SPDX-License-Identifier: GPL-2.0-or-later

ramstage-y += gpio.c
+ramstage-y += ramstage.c
diff --git a/src/mainboard/google/dedede/variants/boxy/ramstage.c b/src/mainboard/google/dedede/variants/boxy/ramstage.c
new file mode 100644
index 0000000..694f331
--- /dev/null
+++ b/src/mainboard/google/dedede/variants/boxy/ramstage.c
@@ -0,0 +1,16 @@
+/ SPDX-License-Identifier: GPL-2.0-or-later /
+
+#include <baseboard/variants.h>
+#include <soc/soc_chip.h>
+
+static void ext_vr_update(void)
+{
+	struct soc_intel_jasperlake_config *cfg = config_of_soc();
+
+		cfg->disable_external_bypass_vr = 1;
+}
+
+void variant_devtree_update(void)
+{
+	ext_vr_update();
+}