diff --git a/src/northbridge/intel/sandybridge/common.c b/src/northbridge/intel/sandybridge/common.c
new file mode 100644
index 0000000..72b5603
--- /dev/null
+++ b/src/northbridge/intel/sandybridge/common.c
@@ -0,0 +1,32 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2012 The Chromium OS Authors
+ *
+ * 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.
+ */
+
+#include <types.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include "sandybridge.h"
+
+enum platform_type get_platform_type(void)
+{
+	const int id = get_platform_id();
+	if (id != 1 && id != 4)
+		printk(BIOS_WARNING, "WARN: Unknown platform id 0x%x\n", id);
+
+	return (id == 4) ? PLATFORM_MOBILE : PLATFORM_DESKTOP_SERVER;
+}