建立工程，成功创建两个虚拟串口

source/OpenAMP/libmetal/lib/system/freertos/device.c

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2017, Xilinx Inc. and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/*
+ * @file	freertos/device.c
+ * @brief	FreeRTOS device operations.
+ */
+
+#include <metal/device.h>
+#include <metal/sys.h>
+#include <metal/utilities.h>
+
+int metal_generic_dev_sys_open(struct metal_device *dev)
+{
+	struct metal_io_region *io;
+	unsigned i;
+
+	/* map I/O memory regions */
+	for (i = 0; i < dev->num_regions; i++) {
+		io = &dev->regions[i];
+		if (!io->size)
+			break;
+		metal_sys_io_mem_map(io);
+	}
+
+	return 0;
+}
+