3 files changed, 15 insertions, 0 deletions
diff --git a/src/mainboard/google/zork/Makefile.inc b/src/mainboard/google/zork/Makefile.inc
index 8a9d7af89a..4aac8f4884 100644
--- a/src/mainboard/google/zork/Makefile.inc
+++ b/src/mainboard/google/zork/Makefile.inc
@@ -4,6 +4,7 @@ bootblock-y += bootblock.c
 
 romstage-y += chromeos.c
 romstage-y += sku_id.c
+romstage-y += romstage.c
 
 ramstage-y += chromeos.c
 ramstage-y += ec.c
diff --git a/src/mainboard/google/zork/romstage.c b/src/mainboard/google/zork/romstage.c
new file mode 100644
index 0000000000..9ad167768f
--- /dev/null
+++ b/src/mainboard/google/zork/romstage.c
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <baseboard/variants.h>
+#include <soc/romstage.h>
+
+void __weak variant_updm_update(FSP_M_CONFIG *mcfg) {}
+
+void mainboard_updm_update(FSP_M_CONFIG *mcfg)
+{
+	variant_updm_update(mcfg);
+}
diff --git a/src/mainboard/google/zork/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/zork/variants/baseboard/include/baseboard/variants.h
index ac600de255..230f059972 100644
--- a/src/mainboard/google/zork/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/google/zork/variants/baseboard/include/baseboard/variants.h
@@ -6,6 +6,7 @@
 #include <stddef.h>
 #include <boardid.h>
 #include <ec/google/chromeec/ec.h>
+#include <FspmUpd.h>
 #include <soc/platform_descriptors.h>
 #include "chip.h"
 
@@ -32,6 +33,8 @@ const struct soc_amd_gpio *variant_bootblock_gpio_table(size_t *size, int slp_ty
  */
 const struct soc_amd_gpio *variant_sleep_gpio_table(size_t *size, int slp_typ);
 
+void variant_updm_update(FSP_M_CONFIG *mcfg);
+
 /* Program any required GPIOs at the finalize phase */
 void finalize_gpios(int slp_typ);
 /* Modify devictree settings during ramstage. */