mb/google/volteer: Create Malefor variant

This commit creates a malefor variant for Volteer. The initial settings
override the baseboard was copied from variant ripto. Fine tune GPIO
and memory DQ based on malefor schematics.

BUG=b:150653745
BRANCH=volteer
TEST=emerge-volteer coreboot

Signed-off-by: William Wei <wenxu.wei@bitland.corp-partner.google.com>
Change-Id: Idbeebb13e537287686344740211143df35b7863a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39857
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

2 files changed, 20 insertions, 0 deletions

diff --git a/src/mainboard/google/volteer/variants/malefor/include/variant/ec.h b/src/mainboard/google/volteer/variants/malefor/include/variant/ec.h
new file mode 100644
index 0000000000..33e79711f6
--- /dev/null
+++ b/src/mainboard/google/volteer/variants/malefor/include/variant/ec.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
+
+#ifndef __VARIANT_EC_H__
+#define __VARIANT_EC_H__
+
+#include <baseboard/ec.h>
+
+#endif
diff --git a/src/mainboard/google/volteer/variants/malefor/include/variant/gpio.h b/src/mainboard/google/volteer/variants/malefor/include/variant/gpio.h
new file mode 100644
index 0000000000..55725ad59a
--- /dev/null
+++ b/src/mainboard/google/volteer/variants/malefor/include/variant/gpio.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
+
+#ifndef VARIANT_GPIO_H
+#define VARIANT_GPIO_H
+
+#include <baseboard/gpio.h>
+
+/* Copied from baseboard and may need to change for the new variant. */
+
+#endif