diff --git a/src/northbridge/intel/x4x/Makefile.inc b/src/northbridge/intel/x4x/Makefile.inc
new file mode 100644
index 0000000..8d1247e
--- /dev/null
+++ b/src/northbridge/intel/x4x/Makefile.inc
@@ -0,0 +1,27 @@
+#
+# This file is part of the coreboot project.
+#
+# Copyright (C) 2012 secunet Security Networks AG
+# Copyright (C) 2015 Damien Zammit <damien@zamaudio.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+
+ifeq ($(CONFIG_NORTHBRIDGE_INTEL_X4X),y)
+
+romstage-y += early_init.c
+romstage-y += ram_calc.c
+
+ramstage-y += acpi.c
+ramstage-y += ram_calc.c
+ramstage-y += gma.c
+ramstage-y += northbridge.c
+
+endif