diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 73df711..603d83a 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -21,6 +21,9 @@
 	bool
 	default y
 
+config ARCH_NO_VIRT_TO_BUS
+	def_bool y
+
 source "init/Kconfig"
 
 menu "General machine setup"