[M] Change in coreboot[master]: src/ec/intel: Create common code for board_id implementation

[Harsha B R (Code Review)]

Harsha B R has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/70227 )

Change subject: src/ec/intel: Create common code for board_id implementation
......................................................................

src/ec/intel: Create common code for board_id implementation

This patch creates initial common code structure for board_id
implementation for intel rvp platforms. Board_id helps in
identifying the platform with respect to CHROME_EC and INTEL_EC
(Windows_EC). Changes include
1. Create initial board_id.c and board_id.h
2. Modify the Makefile to include src/ec/intel directory

BUG=b:260654043
TEST=Able to build with the patch and boot the mtlrvp platform with the
subsequent patches in the train

Signed-off-by: Harsha B R 
Change-Id: If133f6a72b8c3e1d8811a11f91e4556beb8c16e0
---
M Makefile.inc
A src/ec/intel/Makefile.inc
A src/ec/intel/board_id.c
A src/ec/intel/board_id.h
4 files changed, 50 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/27/70227/1

diff --git a/Makefile.inc b/Makefile.inc
index ef565c2..8064a4a 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -80,6 +80,7 @@
 #######################################################################
 # root source directories of coreboot
 subdirs-y := src/lib src/commonlib/ src/console src/device src/acpi src/superio/common
+subdirs-y += src/ec/intel
 subdirs-y += src/ec/acpi $(wildcard src/ec/*/*) $(wildcard src/southbridge/*/*)
 subdirs-y += $(wildcard src/soc/*) $(wildcard src/soc/*/common) $(filter-out $(wildcard src/soc/*/common),$(wildcard src/soc/*/*))
 subdirs-y += $(wildcard src/northbridge/*/*)
diff --git a/src/ec/intel/Makefile.inc b/src/ec/intel/Makefile.inc
new file mode 100644
index 0000000..46c07a7
--- /dev/null
+++ b/src/ec/intel/Makefile.inc
@@ -0,0 +1,7 @@
+## SPDX-License-Identifier: GPL-2.0-or-later
+
+bootblock-y += board_id.c
+romstage-y += board_id.c
+ramstage-y += board_id.c
+
+CPPFLAGS_common += -I$(src)/ec/intel
diff --git a/src/ec/intel/board_id.c b/src/ec/intel/board_id.c
new file mode 100644
index 0000000..2be29aa
--- /dev/null
+++ b/src/ec/intel/board_id.c
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <boardid.h>
+#include "board_id.h"
+
+/* Get Board ID */
+int get_board_id(void)
+{
+	return BOARD_ID_INIT;
+}
diff --git a/src/ec/intel/board_id.h b/src/ec/intel/board_id.h
new file mode 100644
index 0000000..2b62daa
--- /dev/null
+++ b/src/ec/intel/board_id.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#ifndef _MAINBOARD_COMMON_BOARD_ID_H_
+#define _MAINBOARD_COMMON_BOARD_ID_H_
+
+/*
+ * Returns board_id
+ */
+int get_board_id(void);
+
+#endif /* _MAINBOARD_COMMON_BOARD_ID_H_ */