Add iar compiler support for am335x.

bsp/beaglebone/drivers/uart.h

@@ -0,0 +1,20 @@
+/*
+ * File      : serial.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2013, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2013-07-06     Bernard    the first version
+ */
+
+#ifndef __SERIAL_H__
+#define __SERIAL_H__
+
+int rt_hw_serial_init(void);
+
+#endif