Import Mbed OS hard-float snapshot

targets/TARGET_NUVOTON/TARGET_M2351/device/cmsis.h

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2018-2019, Nuvoton Technology Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MBED_CMSIS_H
+#define MBED_CMSIS_H
+
+#include "M2351.h"
+#include "stddriver_secure.h"
+#include "cmsis_nvic.h"
+#include "partition_M2351.h"
+
+/* Check relevant macro has been defined */
+#if (! defined(NU_ROM_SIZE_S))
+#error("NU_ROM_SIZE_S not defined")
+#endif
+
+/* Determine vector table management
+ *
+ * 1. Non-secure non-PSA/Non-secure PSA
+ * 2. Secure non-PSA (TFM_LVL == 0)
+ * 3. Secure PSA (TFM_LVL > 0)
+ *
+ * In Case 1/2, Mbed OS takes over vector table.
+ * In Case 3, TFM takes over vector table.
+ *
+ * If TFM_LVL isn't defined, it is equivalent to TFM_LVL == 0.
+ *
+ * FIXME: Currently, we still go mbed relocating vector table sequence. When TFM (Secure PSA)
+ *        updates to take over NVIC itself, we must disable this sequence:
+ *        1. Do not allocate vector RAM (cmsis.h/cmsis_nvic.h/linker files):
+ *           Image$$ER_IRAMVEC$$ZI$$Base
+ *           __section_begin("IRAMVEC")
+ *           __start_vector_table__
+ *        2. Secure PSA may go mbed boot sequence. We must leave NVIC_RAM_VECTOR_ADDRESS
+ *           undefined to make the mbed_copy_nvic() function dummy (cmsis_nvic.h).
+ */
+
+// Support linker-generated symbol as start of relocated vector table.
+#if defined(__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
+extern uint32_t Image$$ER_IRAMVEC$$ZI$$Base;
+#elif defined(__ICCARM__)
+
+#elif defined(__GNUC__)
+extern uint32_t __start_vector_table__;
+#endif
+
+/* TZ_START_NS: Start address of non-secure application */
+#ifndef TZ_START_NS
+#define TZ_START_NS (NS_OFFSET + NU_ROM_SIZE_S)
+#endif
+
+#endif