mb/intel/mtlrvp: Enable ChromeOS build for mtlrvp

This patch enables building ChromeOS for mtlrvp.
Patch includes,
1. Add cros_gpios for mtlrvp
2. Add chrome OS configuration in Kconfig
3. Add Chromeos.c

BUG=b:224325352
TEST=Able to build with the patch and boot the mtlrvp platform with the
subsequent patches in the train (CB: 69886)

Signed-off-by: Harsha B R <harsha.b.r@intel.com>
Change-Id: Ia428941bd8269714c3edca6c7b0c2a3fbf08bd75
Signed-off-by: Jamie Ryu <jamie.m.ryu@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70724
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Usha P <usha.p@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

2 files changed, 12 insertions, 0 deletions

diff --git a/src/mainboard/intel/mtlrvp/variants/baseboard/mtlrvp_p/Makefile.inc b/src/mainboard/intel/mtlrvp/variants/baseboard/mtlrvp_p/Makefile.inc
new file mode 100644
index 0000000000..eb2c9bc021
--- /dev/null
+++ b/src/mainboard/intel/mtlrvp/variants/baseboard/mtlrvp_p/Makefile.inc
@@ -0,0 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-or-later
+
+ramstage-y += gpio.c
diff --git a/src/mainboard/intel/mtlrvp/variants/baseboard/mtlrvp_p/gpio.c b/src/mainboard/intel/mtlrvp/variants/baseboard/mtlrvp_p/gpio.c
new file mode 100644
index 0000000000..3e41a46a7d
--- /dev/null
+++ b/src/mainboard/intel/mtlrvp/variants/baseboard/mtlrvp_p/gpio.c
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <baseboard/gpio.h>
+#include <vendorcode/google/chromeos/chromeos.h>
+
+static const struct cros_gpio cros_gpios[] = {
+	CROS_GPIO_REC_AL(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_NAME),
+};
+DECLARE_CROS_GPIOS(cros_gpios);