diff --git a/arch/powerpc/configs/40x/virtex_defconfig b/arch/powerpc/configs/40x/virtex_defconfig
index b6888384dd74d834c8dc88f6888280f20a05e0b7..f5698f962e58020894330d3fa1ab8c2f351f175a 100644
--- a/arch/powerpc/configs/40x/virtex_defconfig
+++ b/arch/powerpc/configs/40x/virtex_defconfig
@@ -686,7 +686,7 @@ CONFIG_SERIAL_UARTLITE_CONSOLE=y
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
 # CONFIG_SERIAL_JSM is not set
-# CONFIG_SERIAL_OF_PLATFORM is not set
+CONFIG_SERIAL_OF_PLATFORM=y
 # CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL is not set
 CONFIG_UNIX98_PTYS=y
 # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
diff --git a/arch/powerpc/configs/44x/virtex5_defconfig b/arch/powerpc/configs/44x/virtex5_defconfig
index 15aab1ca638474bf2567fe4e4fc105ff8706467c..1bf0a63614b1627a21c81dd2af48d3d16c394095 100644
--- a/arch/powerpc/configs/44x/virtex5_defconfig
+++ b/arch/powerpc/configs/44x/virtex5_defconfig
@@ -691,7 +691,7 @@ CONFIG_SERIAL_UARTLITE_CONSOLE=y
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
 # CONFIG_SERIAL_JSM is not set
-# CONFIG_SERIAL_OF_PLATFORM is not set
+CONFIG_SERIAL_OF_PLATFORM=y
 # CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL is not set
 CONFIG_UNIX98_PTYS=y
 # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set