diff --git a/src/include/device/pci.h b/src/include/device/pci.h
index fe31b54..9ef3614 100644
--- a/src/include/device/pci.h
+++ b/src/include/device/pci.h
@@ -119,6 +119,13 @@
 void pci_early_bridge_init(void);
 int pci_early_device_probe(u8 bus, u8 dev, u32 mmio_base);
 
+#ifndef __ROMCC__
+static inline int pci_base_address_is_memory_space(unsigned int attr)
+{
+	return (attr & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_MEMORY;
+}
+#endif
+
 #endif /* CONFIG_PCI */
 
 #endif /* PCI_H */