[coreboot-gerrit] Change in coreboot[master]: mb/facebook/monolith: Use serial number and UUID from VPD

[Wim Vervoorn (Code Review)]

Wim Vervoorn has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/38753 )

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

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 
---
M src/mainboard/facebook/monolith/ramstage.c
1 file changed, 35 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/53/38753/1

diff --git a/src/mainboard/facebook/monolith/ramstage.c b/src/mainboard/facebook/monolith/ramstage.c
index bed1049..3e46b85 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 +31,31 @@
    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))
+			memset(uuid, 0, UUID_LEN);
+		 else
+			return;
+	}
+	printk(BIOS_ERR, "UUID could not be read or invalid.\n");
+}