[S] Change in coreboot[master]: mb/google/rex: Add probed fw_configs to SMBIOS OEM strings

[Subrata Banik (Code Review)]

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/70228 )

Change subject: mb/google/rex: Add probed fw_configs to SMBIOS OEM strings
......................................................................

mb/google/rex: Add probed fw_configs to SMBIOS OEM strings

Enable this feature, and it can use the probe statement in devicetree
to cache of fw_config field as oem string.

TEST=With CBI FW_CONFIG field set to 0x1561

localhost ~ # dmidecode -t 11
Getting SMBIOS data from sysfs.
SMBIOS 3.0 present.

Handle 0x0009, DMI type 11, 5 bytes
OEM Strings
    String 1: AUDIO-MAX98357_ALC5682I_I2S
    String 2: CELLULAR-CELLULAR_PCIE
    String 3: UFC-UFC_MIPI
    String 4: WFC-WFC_MIPI
    String 5: DB_SD-SD_GL9755S

Change-Id: I6cb35eb9c0fbe32764ca76bb7a929cc92fc38404
Signed-off-by: Subrata Banik 
---
M src/mainboard/google/rex/mainboard.c
1 file changed, 40 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/28/70228/1

diff --git a/src/mainboard/google/rex/mainboard.c b/src/mainboard/google/rex/mainboard.c
index 008b3ef..f61af2c 100644
--- a/src/mainboard/google/rex/mainboard.c
+++ b/src/mainboard/google/rex/mainboard.c
@@ -6,6 +6,7 @@
 #include <baseboard/variants.h>
 #include <device/device.h>
 #include <ec/ec.h>
+#include <fw_config.h>
 #include <vendorcode/google/chromeos/chromeos.h>

static void mainboard_init(void *chip_info)
@@ -55,9 +56,20 @@
    acpigen_write_scope_end(); /* Scope */
 }

+static void add_fw_config_oem_string(const struct fw_config *config, void *arg)
+{
+	struct smbios_type11 *t;
+	char buffer[64];
+
+	t = (struct smbios_type11 *)arg;
+
+	snprintf(buffer, sizeof(buffer), "%s-%s", config->field_name, config->option_name);
+	t->count = smbios_add_string(t->eos, buffer);
+}
+
 static void mainboard_smbios_strings(struct device *dev, struct smbios_type11 *t)
 {
-	/* TODO: Add mainboard-smbios entries */
+	fw_config_for_each_found(add_fw_config_oem_string, t);
 }

static void mainboard_dev_init(struct device *dev)