diff --git a/src/Kconfig b/src/Kconfig
index be38af1..610be56 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -1262,3 +1262,12 @@
 	def_bool n
 	help
 	  Selected by features that use Ada code in ramstage.
+
+config RAMSTAGE_LIBHWBASE
+	def_bool n
+	select RAMSTAGE_ADA
+	help
+	  Selected by features that require `libhwbase` in ramstage.
+
+config HWBASE_DYNAMIC_MMIO
+	def_bool y