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authorYouness Alaoui <youness.alaoui@puri.sm>2017-06-12 13:05:36 -0400
committerMartin Roth <martinroth@google.com>2017-10-22 01:57:56 +0000
commitc0a32cad28a5557fd34171bf1cedb63ca1f1ebe0 (patch)
tree5adee715b891b0816e9d9926f9983ce34a9ccf79
parentf68e3bab9f2a9fd60bce2391c4a15c0e8b1641c4 (diff)
downloadcoreboot-c0a32cad28a5557fd34171bf1cedb63ca1f1ebe0.tar.xz
purism/librem13v2: Add reading of serial number from CBFS
Check CBFS for 'serial_number' field, and use value if exists; otherwise use value set at compile time. Change-Id: I4b50f6310ca32b9dd372db075a5b5729e3b06619 Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Signed-off-by: Youness Alaoui <youness.alaoui@puri.sm> Reviewed-on: https://review.coreboot.org/22040 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
-rw-r--r--src/mainboard/purism/librem13v2/mainboard.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/src/mainboard/purism/librem13v2/mainboard.c b/src/mainboard/purism/librem13v2/mainboard.c
new file mode 100644
index 0000000000..37a7a01132
--- /dev/null
+++ b/src/mainboard/purism/librem13v2/mainboard.c
@@ -0,0 +1,49 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2017 Purism SPC
+ *
+ * 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 <smbios.h>
+#include <string.h>
+#include <cbfs.h>
+
+#define MAX_SERIAL_LENGTH 0x100
+
+const char *smbios_mainboard_serial_number(void)
+{
+ static char serial_number[MAX_SERIAL_LENGTH + 1] = {0};
+ struct cbfsf file;
+
+ if (serial_number[0] != 0)
+ return serial_number;
+
+ if (cbfs_boot_locate(&file, "serial_number", NULL) == 0) {
+ struct region_device cbfs_region;
+ size_t serial_len;
+
+ cbfs_file_data(&cbfs_region, &file);
+
+ serial_len = region_device_sz(&cbfs_region);
+ if (serial_len <= MAX_SERIAL_LENGTH) {
+ if (rdev_readat(&cbfs_region, serial_number, 0,
+ serial_len) == serial_len) {
+ serial_number[serial_len] = 0;
+ return serial_number;
+ }
+ }
+ }
+
+ strncpy(serial_number, CONFIG_MAINBOARD_SERIAL_NUMBER, MAX_SERIAL_LENGTH);
+
+ return serial_number;
+}