hatch: automate creating a new variant in coreboot

To create a new variant of the hatch baseboard, we need to
add the variant's GBB_HWID and other information to Kconfig
and Kconfig.name, and set up a skeletal build based on the
hatch baseboard.

BUG=b:140261109
BRANCH=none
TEST=``./create_coreboot_variant.sh sushi && git show``
Kconfig will have three new lines for the SUSHI variant, and
Kconfig.name will have an entirely new section.
New files created are:
variants/sushi/Makefile.inc
variants/sushi/overridetree.cb
variants/sushi/include/ec.h
variants/sushi/include/gpio.h
variants/sushi/include/variant/acpi/dptf.asl

Also run the script with an existing board name to verify that you
can't create a variant that already exists.

Change-Id: I1a5b9c8735faafebb2e4e384cb3346867d64c556
Signed-off-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35239
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/util/mainboard/google/hatch/template/Makefile.inc b/util/mainboard/google/hatch/template/Makefile.inc
new file mode 100644
index 0000000000..38cf728d8f
--- /dev/null
+++ b/util/mainboard/google/hatch/template/Makefile.inc
@@ -0,0 +1,13 @@
+## This file is part of the coreboot project.
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; version 2 of the License.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+
+SPD_SOURCES =