[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/include/dt-bindings/phy/phy-pistachio-usb.h b/src/kernel/linux/v4.14/include/dt-bindings/phy/phy-pistachio-usb.h
new file mode 100644
index 0000000..d1877aa
--- /dev/null
+++ b/src/kernel/linux/v4.14/include/dt-bindings/phy/phy-pistachio-usb.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2015 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#ifndef _DT_BINDINGS_PHY_PISTACHIO
+#define _DT_BINDINGS_PHY_PISTACHIO
+
+#define REFCLK_XO_CRYSTAL	0x0
+#define REFCLK_X0_EXT_CLK	0x1
+#define REFCLK_CLK_CORE		0x2
+
+#endif /* _DT_BINDINGS_PHY_PISTACHIO */