2 * FreeRTOS Kernel V10.2.0
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3 * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
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6 * this software and associated documentation files (the "Software"), to deal in
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7 * the Software without restriction, including without limitation the rights to
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8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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9 * the Software, and to permit persons to whom the Software is furnished to do so,
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10 * subject to the following conditions:
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12 * The above copyright notice and this permission notice shall be included in all
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13 * copies or substantial portions of the Software.
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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22 * http://www.FreeRTOS.org
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23 * http://aws.amazon.com/freertos
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25 * 1 tab == 4 spaces!
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28 /* Use CMSE intrinsics */
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29 #include <arm_cmse.h>
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30 #include "RTE_Components.h"
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31 #include CMSIS_device_header
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33 /* FreeRTOS includes. */
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34 #include "secure_port_macros.h"
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36 /* Start address of non-secure application. */
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37 #define mainNONSECURE_APP_START_ADDRESS ( 0x200000U )
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39 /* typedef for non-secure Reset Handler. */
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40 typedef void ( *NonSecureResetHandler_t ) ( void ) __attribute__( ( cmse_nonsecure_call ) );
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41 /*-----------------------------------------------------------*/
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43 /* Boot into the non-secure code. */
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44 void BootNonSecure( uint32_t ulNonSecureStartAddress );
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45 /*-----------------------------------------------------------*/
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47 void BootNonSecure( uint32_t ulNonSecureStartAddress )
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49 NonSecureResetHandler_t pxNonSecureResetHandler;
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51 /* Main Stack Pointer value for the non-secure side is the first entry in
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52 * the non-secure vector table. Read the first entry and assign the same to
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53 * the non-secure main stack pointer(MSP_NS). */
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54 secureportSET_MSP_NS( *( ( uint32_t * )( ulNonSecureStartAddress ) ) );
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56 /* Non secure Reset Handler is the second entry in the non-secure vector
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57 * table. Read the non-secure reset handler.
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59 pxNonSecureResetHandler = ( NonSecureResetHandler_t )( * ( ( uint32_t * ) ( ( ulNonSecureStartAddress ) + 4U ) ) );
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61 /* Start non-secure software application by jumping to the non-secure Reset
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63 pxNonSecureResetHandler();
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65 /*-----------------------------------------------------------*/
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70 /* Boot the non-secure code. */
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71 BootNonSecure( mainNONSECURE_APP_START_ADDRESS );
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73 /* Non-secure software does not return, this code is not executed. */
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76 /* Should not reach here. */
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79 /*-----------------------------------------------------------*/
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