commit db59e4887023b15b781dd85daa9df598dc241d5c
author Subrata Banik <subratabanik@google.com> Fri Dec 02 01:24:02 2022 +0530
committer Subrata Banik <subratabanik@google.com> Sat Dec 03 07:34:11 2022 +0000
tree b48314cea6fb37f1f104cf0b21f2ee2983e6eb8a
parent e233fc7ac1425d54f5f237f6391d00141867836c

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 <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70228
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/rex/mainboard.c

diff --git a/src/mainboard/google/rex/mainboard.c b/src/mainboard/google/rex/mainboard.c
index 552c0d3..2414edd 100644
--- a/src/mainboard/google/rex/mainboard.c
+++ b/src/mainboard/google/rex/mainboard.c
@@ -4,6 +4,7 @@
 #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)
@@ -19,9 +20,20 @@
 	/* TODO: Add mainboard-specific SSDT entries */
 }
 
+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)