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8fce60b8 SA |
1 | #ifndef __LINUX_BCM963XX_TAG_H__ |
2 | #define __LINUX_BCM963XX_TAG_H__ | |
3 | ||
4 | #include <linux/types.h> | |
bc49c289 FF |
5 | |
6 | #define TAGVER_LEN 4 /* Length of Tag Version */ | |
7 | #define TAGLAYOUT_LEN 4 /* Length of FlashLayoutVer */ | |
8 | #define SIG1_LEN 20 /* Company Signature 1 Length */ | |
25985edc | 9 | #define SIG2_LEN 14 /* Company Signature 2 Length */ |
bc49c289 FF |
10 | #define BOARDID_LEN 16 /* Length of BoardId */ |
11 | #define ENDIANFLAG_LEN 2 /* Endian Flag Length */ | |
12 | #define CHIPID_LEN 6 /* Chip Id Length */ | |
13 | #define IMAGE_LEN 10 /* Length of Length Field */ | |
14 | #define ADDRESS_LEN 12 /* Length of Address field */ | |
696569f7 | 15 | #define IMAGE_SEQUENCE_LEN 4 /* Image sequence Length */ |
bc49c289 FF |
16 | #define RSASIG_LEN 20 /* Length of RSA Signature in tag */ |
17 | #define TAGINFO1_LEN 30 /* Length of vendor information field1 in tag */ | |
18 | #define FLASHLAYOUTVER_LEN 4 /* Length of Flash Layout Version String tag */ | |
19 | #define TAGINFO2_LEN 16 /* Length of vendor information field2 in tag */ | |
bc49c289 FF |
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 | ||
1f29cb19 SA |
30 | /* Extended flash address, needs to be subtracted |
31 | * from bcm_tag flash image offsets. | |
32 | */ | |
33 | #define BCM963XX_EXTENDED_SIZE 0xBFC00000 | |
34 | ||
bc49c289 FF |
35 | /* |
36 | * The broadcom firmware assumes the rootfs starts the image, | |
37 | * therefore uses the rootfs start (flash_image_address) | |
38 | * to determine where to flash the image. Since we have the kernel first | |
39 | * we have to give it the kernel address, but the crc uses the length | |
40 | * associated with this address (root_length), which is added to the kernel | |
41 | * length (kernel_length) to determine the length of image to flash and thus | |
42 | * needs to be rootfs + deadcode (jffs2 EOF marker) | |
43 | */ | |
44 | ||
45 | struct bcm_tag { | |
46 | /* 0-3: Version of the image tag */ | |
47 | char tag_version[TAGVER_LEN]; | |
48 | /* 4-23: Company Line 1 */ | |
49 | char sig_1[SIG1_LEN]; | |
50 | /* 24-37: Company Line 2 */ | |
51 | char sig_2[SIG2_LEN]; | |
52 | /* 38-43: Chip this image is for */ | |
53 | char chip_id[CHIPID_LEN]; | |
54 | /* 44-59: Board name */ | |
55 | char board_id[BOARDID_LEN]; | |
56 | /* 60-61: Map endianness -- 1 BE 0 LE */ | |
57 | char big_endian[ENDIANFLAG_LEN]; | |
58 | /* 62-71: Total length of image */ | |
59 | char total_length[IMAGE_LEN]; | |
60 | /* 72-83: Address in memory of CFE */ | |
61 | char cfe__address[ADDRESS_LEN]; | |
62 | /* 84-93: Size of CFE */ | |
63 | char cfe_length[IMAGE_LEN]; | |
64 | /* 94-105: Address in memory of image start | |
65 | * (kernel for OpenWRT, rootfs for stock firmware) | |
66 | */ | |
67 | char flash_image_start[ADDRESS_LEN]; | |
68 | /* 106-115: Size of rootfs */ | |
69 | char root_length[IMAGE_LEN]; | |
70 | /* 116-127: Address in memory of kernel */ | |
71 | char kernel_address[ADDRESS_LEN]; | |
72 | /* 128-137: Size of kernel */ | |
73 | char kernel_length[IMAGE_LEN]; | |
696569f7 SA |
74 | /* 138-141: Image sequence number |
75 | * (to be incremented when flashed with a new image) | |
76 | */ | |
77 | char image_sequence[IMAGE_SEQUENCE_LEN]; | |
bc49c289 FF |
78 | /* 142-161: RSA Signature (not used; some vendors may use this) */ |
79 | char rsa_signature[RSASIG_LEN]; | |
80 | /* 162-191: Compilation and related information (not used in OpenWrt) */ | |
81 | char information1[TAGINFO1_LEN]; | |
82 | /* 192-195: Version flash layout */ | |
83 | char flash_layout_ver[FLASHLAYOUTVER_LEN]; | |
84 | /* 196-199: kernel+rootfs CRC32 */ | |
80516678 | 85 | __u32 fskernel_crc; |
bc49c289 FF |
86 | /* 200-215: Unused except on Alice Gate where is is information */ |
87 | char information2[TAGINFO2_LEN]; | |
88 | /* 216-219: CRC32 of image less imagetag (kernel for Alice Gate) */ | |
80516678 | 89 | __u32 image_crc; |
bc49c289 | 90 | /* 220-223: CRC32 of rootfs partition */ |
80516678 | 91 | __u32 rootfs_crc; |
bc49c289 | 92 | /* 224-227: CRC32 of kernel partition */ |
80516678 | 93 | __u32 kernel_crc; |
bc49c289 FF |
94 | /* 228-235: Unused at present */ |
95 | char reserved1[8]; | |
7da34c1d | 96 | /* 236-239: CRC32 of header excluding last 20 bytes */ |
80516678 | 97 | __u32 header_crc; |
bc49c289 FF |
98 | /* 240-255: Unused at present */ |
99 | char reserved2[16]; | |
100 | }; | |
101 | ||
8fce60b8 | 102 | #endif /* __LINUX_BCM63XX_TAG_H__ */ |