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1 | #ifndef __BCM963XX_TAG_H |
2 | #define __BCM963XX_TAG_H | |
3 | ||
4 | #define TAGVER_LEN 4 /* Length of Tag Version */ | |
5 | #define TAGLAYOUT_LEN 4 /* Length of FlashLayoutVer */ | |
6 | #define SIG1_LEN 20 /* Company Signature 1 Length */ | |
25985edc | 7 | #define SIG2_LEN 14 /* Company Signature 2 Length */ |
bc49c289 FF |
8 | #define BOARDID_LEN 16 /* Length of BoardId */ |
9 | #define ENDIANFLAG_LEN 2 /* Endian Flag Length */ | |
10 | #define CHIPID_LEN 6 /* Chip Id Length */ | |
11 | #define IMAGE_LEN 10 /* Length of Length Field */ | |
12 | #define ADDRESS_LEN 12 /* Length of Address field */ | |
13 | #define DUALFLAG_LEN 2 /* Dual Image flag Length */ | |
14 | #define INACTIVEFLAG_LEN 2 /* Inactie Flag Length */ | |
15 | #define RSASIG_LEN 20 /* Length of RSA Signature in tag */ | |
16 | #define TAGINFO1_LEN 30 /* Length of vendor information field1 in tag */ | |
17 | #define FLASHLAYOUTVER_LEN 4 /* Length of Flash Layout Version String tag */ | |
18 | #define TAGINFO2_LEN 16 /* Length of vendor information field2 in tag */ | |
19 | #define CRC_LEN 4 /* Length of CRC in bytes */ | |
20 | #define ALTTAGINFO_LEN 54 /* Alternate length for vendor information; Pirelli */ | |
21 | ||
22 | #define NUM_PIRELLI 2 | |
23 | #define IMAGETAG_CRC_START 0xFFFFFFFF | |
24 | ||
25 | #define PIRELLI_BOARDS { \ | |
26 | "AGPF-S0", \ | |
27 | "DWV-S0", \ | |
28 | } | |
29 | ||
30 | /* | |
31 | * The broadcom firmware assumes the rootfs starts the image, | |
32 | * therefore uses the rootfs start (flash_image_address) | |
33 | * to determine where to flash the image. Since we have the kernel first | |
34 | * we have to give it the kernel address, but the crc uses the length | |
35 | * associated with this address (root_length), which is added to the kernel | |
36 | * length (kernel_length) to determine the length of image to flash and thus | |
37 | * needs to be rootfs + deadcode (jffs2 EOF marker) | |
38 | */ | |
39 | ||
40 | struct bcm_tag { | |
41 | /* 0-3: Version of the image tag */ | |
42 | char tag_version[TAGVER_LEN]; | |
43 | /* 4-23: Company Line 1 */ | |
44 | char sig_1[SIG1_LEN]; | |
45 | /* 24-37: Company Line 2 */ | |
46 | char sig_2[SIG2_LEN]; | |
47 | /* 38-43: Chip this image is for */ | |
48 | char chip_id[CHIPID_LEN]; | |
49 | /* 44-59: Board name */ | |
50 | char board_id[BOARDID_LEN]; | |
51 | /* 60-61: Map endianness -- 1 BE 0 LE */ | |
52 | char big_endian[ENDIANFLAG_LEN]; | |
53 | /* 62-71: Total length of image */ | |
54 | char total_length[IMAGE_LEN]; | |
55 | /* 72-83: Address in memory of CFE */ | |
56 | char cfe__address[ADDRESS_LEN]; | |
57 | /* 84-93: Size of CFE */ | |
58 | char cfe_length[IMAGE_LEN]; | |
59 | /* 94-105: Address in memory of image start | |
60 | * (kernel for OpenWRT, rootfs for stock firmware) | |
61 | */ | |
62 | char flash_image_start[ADDRESS_LEN]; | |
63 | /* 106-115: Size of rootfs */ | |
64 | char root_length[IMAGE_LEN]; | |
65 | /* 116-127: Address in memory of kernel */ | |
66 | char kernel_address[ADDRESS_LEN]; | |
67 | /* 128-137: Size of kernel */ | |
68 | char kernel_length[IMAGE_LEN]; | |
69 | /* 138-139: Unused at the moment */ | |
70 | char dual_image[DUALFLAG_LEN]; | |
71 | /* 140-141: Unused at the moment */ | |
72 | char inactive_flag[INACTIVEFLAG_LEN]; | |
73 | /* 142-161: RSA Signature (not used; some vendors may use this) */ | |
74 | char rsa_signature[RSASIG_LEN]; | |
75 | /* 162-191: Compilation and related information (not used in OpenWrt) */ | |
76 | char information1[TAGINFO1_LEN]; | |
77 | /* 192-195: Version flash layout */ | |
78 | char flash_layout_ver[FLASHLAYOUTVER_LEN]; | |
79 | /* 196-199: kernel+rootfs CRC32 */ | |
80 | char fskernel_crc[CRC_LEN]; | |
81 | /* 200-215: Unused except on Alice Gate where is is information */ | |
82 | char information2[TAGINFO2_LEN]; | |
83 | /* 216-219: CRC32 of image less imagetag (kernel for Alice Gate) */ | |
84 | char image_crc[CRC_LEN]; | |
85 | /* 220-223: CRC32 of rootfs partition */ | |
86 | char rootfs_crc[CRC_LEN]; | |
87 | /* 224-227: CRC32 of kernel partition */ | |
88 | char kernel_crc[CRC_LEN]; | |
89 | /* 228-235: Unused at present */ | |
90 | char reserved1[8]; | |
91 | /* 236-239: CRC32 of header excluding tagVersion */ | |
92 | char header_crc[CRC_LEN]; | |
93 | /* 240-255: Unused at present */ | |
94 | char reserved2[16]; | |
95 | }; | |
96 | ||
97 | #endif /* __BCM63XX_TAG_H */ |