sm14z2538移植1-添加CPU相关代码6

blake

15.添加flash.c文件,代码如下:

1. /*
   
2. *  Copyright (c) 2016, The OpenThread Authors.
   
3. *  All rights reserved.
   
4. *
   
5. *  Redistribution and use in source and binary forms, with or without
   
6. *  modification, are permitted provided that the following conditions are met:
   
7. *  1. Redistributions of source code must retain the above copyright
   
8. *     notice, this list of conditions and the following disclaimer.
   
9. *  2. Redistributions in binary form must reproduce the above copyright
   
10. *     notice, this list of conditions and the following disclaimer in the
    
11. *     documentation and/or other materials provided with the distribution.
    
12. *  3. Neither the name of the copyright holder nor the
    
13. *     names of its contributors may be used to endorse or promote products
    
14. *     derived from this software without specific prior written permission.
    
15. *
    
16. *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    
17. *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    
18. *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    
19. *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
    
20. *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    
21. *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    
22. *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    
23. *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    
24. *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    
25. *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    
26. *  POSSIBILITY OF SUCH DAMAGE.
    
27. */
    
28. 
    
29. /**
    
30. * @file
    
31. *   This file implements gcc-specific startup code for the cc2538.
    
32. */
    
33. 
    
34. #include <stdint.h>
    
35. 
    
36. #define FLASH_CCA_BOOTLDR_CFG_DISABLE           0xEFFFFFFF ///< Disable backdoor function
    
37. #define FLASH_CCA_BOOTLDR_CFG_ENABLE            0xF0FFFFFF ///< Enable backdoor function
    
38. #define FLASH_CCA_BOOTLDR_CFG_ACTIVE_HIGH       0x08000000 ///< Selected pin on pad A active high
    
39. #define FLASH_CCA_BOOTLDR_CFG_PORT_A_PIN_M      0x07000000 ///< Selected pin on pad A mask
    
40. #define FLASH_CCA_BOOTLDR_CFG_PORT_A_PIN_S      24         ///< Selected pin on pad A shift
    
41. #define FLASH_CCA_IMAGE_VALID                   0x00000000 ///< Indicates valid image in flash
    
42. 
    
43. #define FLASH_CCA_CONF_BOOTLDR_BACKDOOR_PORT_A_PIN  3      ///< Select Button on SmartRF06 Eval Board
    
44. 
    
45. typedef struct
    
46. {
    
47.     uint32_t ui32BootldrCfg;
    
48.     uint32_t ui32ImageValid;
    
49.     uint32_t ui32ImageVectorAddr;
    
50.     uint8_t  ui8lock[32];
    
51. } flash_cca_lock_page_t;
    
52. 
    
53. extern void *_vector_table[];
    
54. 
    
55. __attribute__((__section__(".flashcca"), used))
    
56. const flash_cca_lock_page_t flash_cca_lock_page =
    
57. {
    
58.     FLASH_CCA_BOOTLDR_CFG_ENABLE | (FLASH_CCA_CONF_BOOTLDR_BACKDOOR_PORT_A_PIN << FLASH_CCA_BOOTLDR_CFG_PORT_A_PIN_S),
    
59.     FLASH_CCA_IMAGE_VALID,
    
60.     (uint32_t) &_vector_table,
    
61.     {
    
62.         0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    
63.         0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    
64.         0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    
65.         0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
    
66.     }
    
67. };
    

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