建立工程，成功创建两个虚拟串口

source/OpenAMP/libmetal/lib/system/freertos/cache.h

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2018, Linaro Limited. and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/*
+ * @file	freertos/cache.h
+ * @brief	FreeRTOS cache operation primitives for libmetal.
+ */
+
+#ifndef __METAL_CACHE__H__
+#error "Include metal/cache.h instead of metal/freertos/cache.h"
+#endif
+
+#ifndef __METAL_FREERTOS_CACHE__H__
+#define __METAL_FREERTOS_CACHE__H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void metal_machine_cache_flush(void *addr, unsigned int len);
+extern void metal_machine_cache_invalidate(void *addr, unsigned int len);
+
+static inline void __metal_cache_flush(void *addr, unsigned int len)
+{
+	metal_machine_cache_flush(addr, len);
+}
+
+static inline void __metal_cache_invalidate(void *addr, unsigned int len)
+{
+	metal_machine_cache_invalidate(addr, len);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __METAL_FREERTOS_CACHE__H__ */