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>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/mainboard/google/volteer/variants/malefor/Makefile.inc b/src/mainboard/google/volteer/variants/malefor/Makefile.inc
new file mode 100644
index 0000000000..8a7cbec383
--- /dev/null
+++ b/src/mainboard/google/volteer/variants/malefor/Makefile.inc
@@ -0,0 +1,11 @@
+## SPDX-License-Identifier: GPL-2.0-only
+## This file is part of the coreboot project.
+
+## Memory Options
+SPD_SOURCES = SPD_LPDDR4X_200b_8bank_1Rx16_16Gb_DDP_4267     # 0b0000
+
+romstage-y += memory.c
+
+bootblock-y += gpio.c
+
+ramstage-y += gpio.c