diff --git a/src/soc/intel/common/block/graphics/graphics.c b/src/soc/intel/common/block/graphics/graphics.c
index e2c9060..f232ee5 100644
--- a/src/soc/intel/common/block/graphics/graphics.c
+++ b/src/soc/intel/common/block/graphics/graphics.c
@@ -12,6 +12,7 @@
 #include <drivers/intel/gma/opregion.h>
 #include <intelblocks/graphics.h>
 #include <soc/pci_devs.h>
+#include <types.h>
 
 /* SoC Overrides */
 __weak void graphics_soc_init(struct device *dev)
@@ -154,6 +155,16 @@
 	graphics_gtt_write(reg, val);
 }
 
+/*
+ * fsp_soc_get_igd_bar() is declared in <fsp/util.h>,
+ * but that draws incompatible UDK headers in.
+ */
+uintptr_t fsp_soc_get_igd_bar(void);
+uintptr_t fsp_soc_get_igd_bar(void)
+{
+	return graphics_get_memory_base();
+}
+
 static const struct device_operations graphics_ops = {
 	.read_resources		= pci_dev_read_resources,
 	.set_resources		= pci_dev_set_resources,