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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | mjames | 1 | /****************************************************************************** |
| 2 | * @file main_s.c |
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| 3 | * @brief Code template for secure main function |
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| 4 | * @version V1.1.1 |
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| 5 | * @date 10. January 2018 |
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| 6 | ******************************************************************************/ |
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| 7 | /* |
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| 8 | * Copyright (c) 2013-2018 Arm Limited. All rights reserved. |
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| 9 | * |
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| 10 | * SPDX-License-Identifier: Apache-2.0 |
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| 11 | * |
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| 12 | * Licensed under the Apache License, Version 2.0 (the License); you may |
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| 13 | * not use this file except in compliance with the License. |
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| 14 | * You may obtain a copy of the License at |
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| 15 | * |
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| 16 | * www.apache.org/licenses/LICENSE-2.0 |
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| 17 | * |
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| 18 | * Unless required by applicable law or agreed to in writing, software |
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| 19 | * distributed under the License is distributed on an AS IS BASIS, WITHOUT |
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| 20 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 21 | * See the License for the specific language governing permissions and |
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| 22 | * limitations under the License. |
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| 23 | */ |
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| 24 | |||
| 25 | /* Use CMSE intrinsics */ |
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| 26 | #include <arm_cmse.h> |
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| 27 | |||
| 28 | #include "RTE_Components.h" |
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| 29 | #include CMSIS_device_header |
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| 30 | |||
| 31 | /* TZ_START_NS: Start address of non-secure application */ |
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| 32 | #ifndef TZ_START_NS |
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| 33 | #define TZ_START_NS (0x200000U) |
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| 34 | #endif |
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| 35 | |||
| 36 | /* typedef for non-secure callback functions */ |
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| 37 | typedef void (*funcptr_void) (void) __attribute__((cmse_nonsecure_call)); |
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| 38 | |||
| 39 | /* Secure main() */ |
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| 40 | int main(void) { |
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| 41 | funcptr_void NonSecure_ResetHandler; |
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| 42 | |||
| 43 | /* Add user setup code for secure part here*/ |
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| 44 | |||
| 45 | /* Set non-secure main stack (MSP_NS) */ |
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| 46 | __TZ_set_MSP_NS(*((uint32_t *)(TZ_START_NS))); |
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| 47 | |||
| 48 | /* Get non-secure reset handler */ |
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| 49 | NonSecure_ResetHandler = (funcptr_void)(*((uint32_t *)((TZ_START_NS) + 4U))); |
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| 50 | |||
| 51 | /* Start non-secure state software application */ |
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| 52 | NonSecure_ResetHandler(); |
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| 53 | |||
| 54 | /* Non-secure software does not return, this code is not executed */ |
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| 55 | while (1) { |
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| 56 | __NOP(); |
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| 57 | } |
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| 58 | } |