diff --git a/default-configs/ppc64-softmmu.mak b/default-configs/ppc64-softmmu.mak
index 0164443597..7831c2bf57 100644
--- a/default-configs/ppc64-softmmu.mak
+++ b/default-configs/ppc64-softmmu.mak
@@ -48,5 +48,11 @@ CONFIG_OPENPIC_KVM=$(and $(CONFIG_E500),$(CONFIG_KVM))
 # For pSeries
 CONFIG_XICS=$(CONFIG_PSERIES)
 # For PReP
+CONFIG_I82378=y
+CONFIG_I8259=y
+CONFIG_I8254=y
+CONFIG_PCSPK=y
+CONFIG_I82374=y
+CONFIG_I8257=y
 CONFIG_MC146818RTC=y
 CONFIG_ISA_TESTDEV=y