diff --git a/src/include/uart.h b/src/include/uart.h
index ca5191e..6b8d8e8 100644
--- a/src/include/uart.h
+++ b/src/include/uart.h
@@ -37,4 +37,8 @@
 void uart_init(void);
 #endif
 
+#if CONFIG_HAVE_UART_MEMORY_MAPPED
+uint32_t uartmem_getbaseaddr(void);
+#endif
+
 #endif /* UART_H */