2 files changed, 44 insertions, 0 deletions
diff --git a/src/drivers/elog/elog.c b/src/drivers/elog/elog.c
index 8e56b85242..9c0fa930ad 100644
--- a/src/drivers/elog/elog.c
+++ b/src/drivers/elog/elog.c
@@ -20,6 +20,7 @@
 #include <arch/acpi.h>
 #include <console/console.h>
 #include <pc80/mc146818rtc.h>
+#include <smbios.h>
 #include <spi.h>
 #include <spi_flash.h>
 #include <stdint.h>
@@ -677,6 +678,34 @@ static int elog_spi_init(void)
 }
 
 /*
+ * Fill out SMBIOS Type 15 table entry so the
+ * event log can be discovered at runtime.
+ */
+int elog_smbios_write_type15(unsigned long *current, int handle)
+{
+	struct smbios_type15 *t = (struct smbios_type15 *)*current;
+	int len = sizeof(struct smbios_type15);
+
+	memset(t, 0, len);
+	t->type = SMBIOS_EVENT_LOG;
+	t->length = len - 2;
+	t->handle = handle;
+	t->area_length = elog_get_flash()->total_size - 1;
+	t->header_offset = 0;
+	t->data_offset = sizeof(struct elog_header);
+	t->access_method = SMBIOS_EVENTLOG_ACCESS_METHOD_MMIO32;
+	t->log_status = SMBIOS_EVENTLOG_STATUS_VALID;
+	t->change_token = 0;
+	t->address = (u32)elog_get_flash()->backing_store;
+	t->header_format = ELOG_HEADER_TYPE_OEM;
+	t->log_type_descriptors = 0;
+	t->log_type_descriptor_length = 2;
+
+	*current += len;
+	return len;
+}
+
+/*
  * Clear the entire event log
  */
 int elog_clear(void)
diff --git a/src/drivers/elog/elog_internal.h b/src/drivers/elog/elog_internal.h
index 2a6a0b7fc4..6d9a0d4bb5 100644
--- a/src/drivers/elog/elog_internal.h
+++ b/src/drivers/elog/elog_internal.h
@@ -32,6 +32,21 @@ struct elog_header {
 #define ELOG_SIGNATURE			0x474f4c45  /* 'ELOG' */
 #define ELOG_VERSION			1
 
+/* SMBIOS event log header */
+struct event_header {
+	u8 type;
+	u8 length;
+	u8 year;
+	u8 month;
+	u8 day;
+	u8 hour;
+	u8 minute;
+	u8 second;
+} __attribute__ ((packed));
+
+/* SMBIOS Type 15 related constants */
+#define ELOG_HEADER_TYPE_OEM		0x88
+
 typedef enum elog_descriptor_type {
 	ELOG_DESCRIPTOR_UNKNOWN,
 	ELOG_DESCRIPTOR_MEMORY,