/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h

http://github.com/mirrors/linux · C++ Header · 96 lines · 53 code · 6 blank · 37 comment · 0 complexity · 33182dc2fb0696341cb3e6f6cf466227 MD5 · raw file 

    

  1. #ifndef __BCM963XX_TAG_H
    2. 

  2. #define __BCM963XX_TAG_H
    3. 

  3. 

  4. #define TAGVER_LEN		4	/* Length of Tag Version */
    5. 

  5. #define TAGLAYOUT_LEN		4	/* Length of FlashLayoutVer */
    6. 

  6. #define SIG1_LEN		20	/* Company Signature 1 Length */
    7. 

  7. #define SIG2_LEN		14	/* Company Signature 2 Length */
    8. 

  8. #define BOARDID_LEN		16	/* Length of BoardId */
    9. 

  9. #define ENDIANFLAG_LEN		2	/* Endian Flag Length */
    10. 

  10. #define CHIPID_LEN		6	/* Chip Id Length */
    11. 

  11. #define IMAGE_LEN		10	/* Length of Length Field */
    12. 

  12. #define ADDRESS_LEN		12	/* Length of Address field */
    13. 

  13. #define DUALFLAG_LEN		2	/* Dual Image flag Length */
    14. 

  14. #define INACTIVEFLAG_LEN	2	/* Inactie Flag Length */
    15. 

  15. #define RSASIG_LEN		20	/* Length of RSA Signature in tag */
    16. 

  16. #define TAGINFO1_LEN		30	/* Length of vendor information field1 in tag */
    17. 

  17. #define FLASHLAYOUTVER_LEN	4	/* Length of Flash Layout Version String tag */
    18. 

  18. #define TAGINFO2_LEN		16	/* Length of vendor information field2 in tag */
    19. 

  19. #define ALTTAGINFO_LEN		54	/* Alternate length for vendor information; Pirelli */
    20. 

  20. 

  21. #define NUM_PIRELLI		2
    22. 

  22. #define IMAGETAG_CRC_START	0xFFFFFFFF
    23. 

  23. 

  24. #define PIRELLI_BOARDS { \
    25. 

  25. 	"AGPF-S0", \
    26. 

  26. 	"DWV-S0", \
    27. 

  27. }
    28. 

  28. 

  29. /*
    30. 

  30.  * The broadcom firmware assumes the rootfs starts the image,
    31. 

  31.  * therefore uses the rootfs start (flash_image_address)
    32. 

  32.  * to determine where to flash the image.  Since we have the kernel first
    33. 

  33.  * we have to give it the kernel address, but the crc uses the length
    34. 

  34.  * associated with this address (root_length), which is added to the kernel
    35. 

  35.  * length (kernel_length) to determine the length of image to flash and thus
    36. 

  36.  * needs to be rootfs + deadcode (jffs2 EOF marker)
    37. 

  37. */
    38. 

  38. 

  39. struct bcm_tag {
    40. 

  40. 	/* 0-3: Version of the image tag */
    41. 

  41. 	char tag_version[TAGVER_LEN];
    42. 

  42. 	/* 4-23: Company Line 1 */
    43. 

  43. 	char sig_1[SIG1_LEN];
    44. 

  44. 	/*  24-37: Company Line 2 */
    45. 

  45. 	char sig_2[SIG2_LEN];
    46. 

  46. 	/* 38-43: Chip this image is for */
    47. 

  47. 	char chip_id[CHIPID_LEN];
    48. 

  48. 	/* 44-59: Board name */
    49. 

  49. 	char board_id[BOARDID_LEN];
    50. 

  50. 	/* 60-61: Map endianness -- 1 BE 0 LE */
    51. 

  51. 	char big_endian[ENDIANFLAG_LEN];
    52. 

  52. 	/* 62-71: Total length of image */
    53. 

  53. 	char total_length[IMAGE_LEN];
    54. 

  54. 	/* 72-83: Address in memory of CFE */
    55. 

  55. 	char cfe__address[ADDRESS_LEN];
    56. 

  56. 	/* 84-93: Size of CFE */
    57. 

  57. 	char cfe_length[IMAGE_LEN];
    58. 

  58. 	/* 94-105: Address in memory of image start
    59. 

  59. 	 * (kernel for OpenWRT, rootfs for stock firmware)
    60. 

  60. 	 */
    61. 

  61. 	char flash_image_start[ADDRESS_LEN];
    62. 

  62. 	/* 106-115: Size of rootfs */
    63. 

  63. 	char root_length[IMAGE_LEN];
    64. 

  64. 	/* 116-127: Address in memory of kernel */
    65. 

  65. 	char kernel_address[ADDRESS_LEN];
    66. 

  66. 	/* 128-137: Size of kernel */
    67. 

  67. 	char kernel_length[IMAGE_LEN];
    68. 

  68. 	/* 138-139: Unused at the moment */
    69. 

  69. 	char dual_image[DUALFLAG_LEN];
    70. 

  70. 	/* 140-141: Unused at the moment */
    71. 

  71. 	char inactive_flag[INACTIVEFLAG_LEN];
    72. 

  72. 	/* 142-161: RSA Signature (not used; some vendors may use this) */
    73. 

  73. 	char rsa_signature[RSASIG_LEN];
    74. 

  74. 	/* 162-191: Compilation and related information (not used in OpenWrt) */
    75. 

  75. 	char information1[TAGINFO1_LEN];
    76. 

  76. 	/* 192-195: Version flash layout */
    77. 

  77. 	char flash_layout_ver[FLASHLAYOUTVER_LEN];
    78. 

  78. 	/* 196-199: kernel+rootfs CRC32 */
    79. 

  79. 	__u32 fskernel_crc;
    80. 

  80. 	/* 200-215: Unused except on Alice Gate where is is information */
    81. 

  81. 	char information2[TAGINFO2_LEN];
    82. 

  82. 	/* 216-219: CRC32 of image less imagetag (kernel for Alice Gate) */
    83. 

  83. 	__u32 image_crc;
    84. 

  84. 	/* 220-223: CRC32 of rootfs partition */
    85. 

  85. 	__u32 rootfs_crc;
    86. 

  86. 	/* 224-227: CRC32 of kernel partition */
    87. 

  87. 	__u32 kernel_crc;
    88. 

  88. 	/* 228-235: Unused at present */
    89. 

  89. 	char reserved1[8];
    90. 

  90. 	/* 236-239: CRC32 of header excluding last 20 bytes */
    91. 

  91. 	__u32 header_crc;
    92. 

  92. 	/* 240-255: Unused at present */
    93. 

  93. 	char reserved2[16];
    94. 

  94. };
    95. 

  95. 

  96. #endif /* __BCM63XX_TAG_H */
    97.