mb/intel/icelake_rvp: Add ICL U and Y RVP DIMM configuration

List of ICL board variants

1. ICL-U
    DDR4 - All possible DDR4 memory type
    LPDDR4 - Memory down fixed DIMM configuration

2. ICL-Y
    All LPDDR4 DIMM on platform

This patch ensures to have all proper SPD configuration.

Change-Id: Id596a3c85b13559b3002dcadfee9c945256e28e7
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Signed-off-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-on: https://review.coreboot.org/c/29770
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shelley Chen <shchen@google.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/src/mainboard/intel/icelake_rvp/board_id.c b/src/mainboard/intel/icelake_rvp/board_id.c
new file mode 100644
index 0000000000..6ac312ad8d
--- /dev/null
+++ b/src/mainboard/intel/icelake_rvp/board_id.c
@@ -0,0 +1,51 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2018 Intel Corporation.
+ *
+ * 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.
+ */
+#include "board_id.h"
+#include <boardid.h>
+#include <ec/acpi/ec.h>
+#include <stdint.h>
+#include <ec/google/chromeec/ec.h>
+
+static int get_board_id_via_ext_ec(void)
+{
+	uint32_t id = BOARD_ID_INIT;
+
+	if (google_chromeec_get_board_version(&id))
+		id = BOARD_ID_UNKNOWN;
+
+	return id;
+}
+
+/* Get Board ID via EC I/O port write/read */
+int get_board_id(void)
+{
+	MAYBE_STATIC int id = -1;
+
+	if (id < 0) {
+		if (IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC))
+			id = get_board_id_via_ext_ec();
+		else{
+			uint8_t buffer[2];
+			uint8_t index;
+			if (send_ec_command(EC_FAB_ID_CMD) == 0) {
+				for (index = 0; index < sizeof(buffer); index++)
+					buffer[index] = recv_ec_data();
+				id = (buffer[0] << 8) | buffer[1];
+			}
+		}
+	}
+
+	return id;
+}