mb/facebook/monolith: Use serial number and UUID from VPD

The serial number and UUID returned by DMI are retrieved from VPD.

The solution supports a 16 character "serial_number" and a 36 character
"UUID" string.

BUG=N/A
TEST=tested on monolith

Change-Id: I0b6ce769cfa81a1e248a35f6149b7d1bbcf1f836
Signed-off-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38753
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/src/mainboard/facebook/monolith/ramstage.c b/src/mainboard/facebook/monolith/ramstage.c
index bed104956f..05cbf31adc 100644
--- a/src/mainboard/facebook/monolith/ramstage.c
+++ b/src/mainboard/facebook/monolith/ramstage.c
@@ -14,7 +14,14 @@
  * GNU General Public License for more details.
  */
 
+#include <stdint.h>
+#include <console/console.h>
+#include <drivers/vpd/vpd.h>
+#include <lib.h>
+#include <smbios.h>
 #include <soc/ramstage.h>
+#include <uuid.h>
+
 #include "gpio.h"
 
 void mainboard_silicon_init_params(FSP_SIL_UPD *params)
@@ -24,3 +31,30 @@ void mainboard_silicon_init_params(FSP_SIL_UPD *params)
 	gpio_configure_pads(gpio_table, ARRAY_SIZE(gpio_table));
 	params->CdClock = 3;
 }
+
+#define VPD_KEY_SERIAL			"serial_number"
+#define VPD_KEY_UUID			"UUID"
+#define VPD_SERIAL_LEN			17
+
+const char *smbios_system_serial_number(void)
+{
+	static char serial[VPD_SERIAL_LEN];
+
+	if (vpd_gets(VPD_KEY_SERIAL, serial, VPD_SERIAL_LEN, VPD_RO))
+		return serial;
+
+	printk(BIOS_ERR, "serial_number could not be read or invalid.\n");
+	return "";
+}
+
+void smbios_system_set_uuid(u8 *uuid)
+{
+	static char vpd_uuid_string[UUID_STRLEN+1];
+
+	if (vpd_gets(VPD_KEY_UUID, vpd_uuid_string, UUID_STRLEN+1, VPD_RO))
+		if (!parse_uuid(uuid, vpd_uuid_string))
+			return;
+
+	memset(uuid, 0, UUID_LEN);
+	printk(BIOS_ERR, "UUID could not be read or invalid.\n");
+}