[uboot]加载内核到内存地址问题

quanguoheme

当加载内核到内存地址30080000地址时候,启动内核就出现异常,然后机器复位了,
当加载内核到内存地址31000000地址时候,启动内核又正常了,
异常信息如下:

1. 
   
2. NAND read: device 0 offset 0x80000, size 0x200000
   
3. 
   
4. 2097152 bytes read: OK
   
5. 
   
6. *  kernel: cmdline image address = 0x30008000
   
7. 
   
8. ## Booting kernel from Legacy Image at 30008000 ...
   
9. 
   
10.    Image Name:   Linux-2.6.29.4-FriendlyARM
    
11. 
    
12.    Created:      2012-07-06  17:48:10 UTC
    
13. 
    
14.    Image Type:   ARM Linux Kernel Image (uncompressed)
    
15. 
    
16.    Data Size:    2022400 Bytes =  1.9 MB
    
17. 
    
18.    Load Address: 30008000
    
19. 
    
20.    Entry Point:  30008000
    
21. 
    
22.    Verifying Checksum ... OK
    
23. 
    
24.    kernel data at 0x30008040, len = 0x001edc00 (2022400)
    
25. 
    
26. ## No init Ramdisk
    
27. 
    
28.    ramdisk start = 0x00000000, ramdisk end = 0x00000000
    
29. 
    
30.    XIP Kernel Image ... OK
    
31. 
    
32. OK
    
33. 
    
34.    kernel loaded at 0x30008000, end = 0x301f5c00
    
35. 
    
36. images.os.start = 0x30008000, images.os.end = 0x301f5c40
    
37. 
    
38. images.os.load = 0x30008000, load_end = 0x301f5c00
    
39. 
    
40. ## Transferring control to Linux (at address 30008000) ...
    
41. 
    
42. 
    
43. 
    
44. Starting kernel ...
    
45. 
    
46. 
    
47. 
    
48. data abort
    
49. 
    
50. pc : [<30008008>]           lr : [<33fa7450>]
    
51. 
    
52. sp : 33f3ddfc  ip : 00000000         fp : 30008000
    
53. 
    
54. r10: 33fc5208  r9 : 000007cf         r8 : 33f3ffe0
    
55. 
    
56. r7 : 33f3ffc4  r6 : 33f41385         r5 : 30000100  r4 : 00000000
    
57. 
    
58. r3 : 00000000  r2 : 30000100         r1 : 000007cf  r0 : 00000000
    
59. 
    
60. Flags: nzCv  IRQs off  FIQs off  Mode SVC_32
    
61. 
    
62. Resetting CPU ...
    
63. 
    

复制代码