diff --git a/arch/powerpc/cpu/mpc83xx/Kconfig b/arch/powerpc/cpu/mpc83xx/Kconfig
index 2ebf8fc..d1b9ae4 100644
--- a/arch/powerpc/cpu/mpc83xx/Kconfig
+++ b/arch/powerpc/cpu/mpc83xx/Kconfig
@@ -1,6 +1,10 @@
 menu "mpc83xx CPU"
 	depends on MPC83xx
 
+config DEFAULT_IMMR
+	hex
+	default 0xFF400000
+
 config E300
 	def_bool y