diff --git a/src/mainboard/google/brya/variants/kaladin/Makefile.mk b/src/mainboard/google/brya/variants/kaladin/Makefile.mk
index 936c557f19..bf8808508a 100644
--- a/src/mainboard/google/brya/variants/kaladin/Makefile.mk
+++ b/src/mainboard/google/brya/variants/kaladin/Makefile.mk
@@ -4,5 +4,6 @@ bootblock-y += gpio.c
 romstage-y += gpio.c
 romstage-y += memory.c
 ramstage-y += gpio.c
+ramstage-y += variant.c
 ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_HDA_VERB) += hda_verb.c
 ramstage-$(CONFIG_FW_CONFIG) += fw_config.c
diff --git a/src/mainboard/google/brya/variants/kaladin/overridetree.cb b/src/mainboard/google/brya/variants/kaladin/overridetree.cb
index 4a8ad625c0..08cb01231c 100644
--- a/src/mainboard/google/brya/variants/kaladin/overridetree.cb
+++ b/src/mainboard/google/brya/variants/kaladin/overridetree.cb
@@ -11,6 +11,10 @@ fw_config
 		option TOUCH_ELAN_TOP   0
 		option TOUCH_ELAN_DBTS  1
 	end
+	field WIFI_SAR 13 15
+		option WIFI_SAR_ID_0 0
+		option WIFI_SAR_ID_1 1
+	end
 	field STORAGE 30 31
 		option STORAGE_EMMC		0
 		option STORAGE_NVME		1
diff --git a/src/mainboard/google/brya/variants/kaladin/variant.c b/src/mainboard/google/brya/variants/kaladin/variant.c
new file mode 100644
index 0000000000..1443b03cfa
--- /dev/null
+++ b/src/mainboard/google/brya/variants/kaladin/variant.c
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <fw_config.h>
+#include <sar.h>
+
+const char *get_wifi_sar_cbfs_filename(void)
+{
+	return get_wifi_sar_fw_config_filename(FW_CONFIG_FIELD(WIFI_SAR));
+}