Aamir Bohra has uploaded this change for review.
mainboard/intel/common: Add some common board and memory APIs
Add support for below APIs in mainboard intel/common:
1. get_board_id: Returns board ID from EC.
2. get_spd_index: Returns SPD index from board ID.
Change-Id: I40c9454b583d6bc0e3034f3400beb822124ba8f4
Signed-off-by: Aamir Bohra <aamir.bohra@intel.com>
---
A src/mainboard/intel/common/Makefile.inc
A src/mainboard/intel/common/board/Makefile.inc
A src/mainboard/intel/common/board/board_id.c
A src/mainboard/intel/common/include/intel_mb/board_id.h
A src/mainboard/intel/common/include/intel_mb/spd.h
A src/mainboard/intel/common/memory/Makefile.inc
A src/mainboard/intel/common/memory/spd.c
7 files changed, 143 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/07/37707/1
diff --git a/src/mainboard/intel/common/Makefile.inc b/src/mainboard/intel/common/Makefile.inc
new file mode 100644
index 0000000..54bba3f
--- /dev/null
+++ b/src/mainboard/intel/common/Makefile.inc
@@ -0,0 +1,8 @@
+ifeq ($(CONFIG_MAINBOARD_INTEL_COMMON),y)
+
+subdirs-y += board/
+subdirs-y += memory/
+
+CPPFLAGS_common += -I$(src)/mainboard/intel/common/include/
+
+endif
diff --git a/src/mainboard/intel/common/board/Makefile.inc b/src/mainboard/intel/common/board/Makefile.inc
new file mode 100644
index 0000000..4781dfb
--- /dev/null
+++ b/src/mainboard/intel/common/board/Makefile.inc
@@ -0,0 +1,3 @@
+romstage-y += board_id.c
+ramstage-y += board_id.c
+
diff --git a/src/mainboard/intel/common/board/board_id.c b/src/mainboard/intel/common/board/board_id.c
new file mode 100644
index 0000000..19897c2
--- /dev/null
+++ b/src/mainboard/intel/common/board/board_id.c
@@ -0,0 +1,52 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2019 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 <boardid.h>
+#include <ec/acpi/ec.h>
+#include <ec/google/chromeec/ec.h>
+#include <intel_mb/board_id.h>
+#include <stdint.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_NONZERO int id = -1;
+
+ if (id < 0) {
+ if (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;
+}
diff --git a/src/mainboard/intel/common/include/intel_mb/board_id.h b/src/mainboard/intel/common/include/intel_mb/board_id.h
new file mode 100644
index 0000000..9aac527
--- /dev/null
+++ b/src/mainboard/intel/common/include/intel_mb/board_id.h
@@ -0,0 +1,30 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2019 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.
+ */
+
+#ifndef _MAINBOARD_COMMON_BOARD_ID_H_
+#define _MAINBOARD_COMMON_BOARD_ID_H_
+
+#include <stdint.h>
+
+/* Board/FAB ID Command */
+#define EC_FAB_ID_CMD 0x0D
+
+/*
+ * Returns board information (board id[15:8] and
+ * Fab info[7:0]) on success and < 0 on error
+ */
+int get_board_id(void);
+
+#endif /* _MAINBOARD_COMMON_BOARD_ID_H_ */
diff --git a/src/mainboard/intel/common/include/intel_mb/spd.h b/src/mainboard/intel/common/include/intel_mb/spd.h
new file mode 100644
index 0000000..3f834b8
--- /dev/null
+++ b/src/mainboard/intel/common/include/intel_mb/spd.h
@@ -0,0 +1,24 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2019 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.
+ */
+
+#ifndef _MAINBOARD_COMMON_SPD_H_
+#define _MAINBOARD_COMMON_SPD_H_
+
+#include <stdint.h>
+
+/* Returns SPD index from board ID */
+uint8_t get_spd_index(void);
+
+#endif /* _MAINBOARD_COMMON_SPD_H_ */
diff --git a/src/mainboard/intel/common/memory/Makefile.inc b/src/mainboard/intel/common/memory/Makefile.inc
new file mode 100644
index 0000000..c0e5f53
--- /dev/null
+++ b/src/mainboard/intel/common/memory/Makefile.inc
@@ -0,0 +1,2 @@
+romstage-y += spd.c
+
diff --git a/src/mainboard/intel/common/memory/spd.c b/src/mainboard/intel/common/memory/spd.c
new file mode 100644
index 0000000..5da5bf4
--- /dev/null
+++ b/src/mainboard/intel/common/memory/spd.c
@@ -0,0 +1,24 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2019 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 <intel_mb/board_id.h>
+#include <intel_mb/spd.h>
+#include <stdint.h>
+
+uint8_t get_spd_index(void)
+{
+ return get_board_id() & 0x7;
+
+}
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