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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h
1 #ifndef __BCM963XX_TAG_H
2 #define __BCM963XX_TAG_H
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 */
7 #define SIG2_LEN 14 /* Company Signature 2 Length */
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 ALTTAGINFO_LEN 54 /* Alternate length for vendor information; Pirelli */
22 #define IMAGETAG_CRC_START 0xFFFFFFFF
24 #define PIRELLI_BOARDS { \
30 * The broadcom firmware assumes the rootfs starts the image,
31 * therefore uses the rootfs start (flash_image_address)
32 * to determine where to flash the image. Since we have the kernel first
33 * we have to give it the kernel address, but the crc uses the length
34 * associated with this address (root_length), which is added to the kernel
35 * length (kernel_length) to determine the length of image to flash and thus
36 * needs to be rootfs + deadcode (jffs2 EOF marker)
40 /* 0-3: Version of the image tag */
41 char tag_version
[TAGVER_LEN
];
42 /* 4-23: Company Line 1 */
44 /* 24-37: Company Line 2 */
46 /* 38-43: Chip this image is for */
47 char chip_id
[CHIPID_LEN
];
48 /* 44-59: Board name */
49 char board_id
[BOARDID_LEN
];
50 /* 60-61: Map endianness -- 1 BE 0 LE */
51 char big_endian
[ENDIANFLAG_LEN
];
52 /* 62-71: Total length of image */
53 char total_length
[IMAGE_LEN
];
54 /* 72-83: Address in memory of CFE */
55 char cfe__address
[ADDRESS_LEN
];
56 /* 84-93: Size of CFE */
57 char cfe_length
[IMAGE_LEN
];
58 /* 94-105: Address in memory of image start
59 * (kernel for OpenWRT, rootfs for stock firmware)
61 char flash_image_start
[ADDRESS_LEN
];
62 /* 106-115: Size of rootfs */
63 char root_length
[IMAGE_LEN
];
64 /* 116-127: Address in memory of kernel */
65 char kernel_address
[ADDRESS_LEN
];
66 /* 128-137: Size of kernel */
67 char kernel_length
[IMAGE_LEN
];
68 /* 138-139: Unused at the moment */
69 char dual_image
[DUALFLAG_LEN
];
70 /* 140-141: Unused at the moment */
71 char inactive_flag
[INACTIVEFLAG_LEN
];
72 /* 142-161: RSA Signature (not used; some vendors may use this) */
73 char rsa_signature
[RSASIG_LEN
];
74 /* 162-191: Compilation and related information (not used in OpenWrt) */
75 char information1
[TAGINFO1_LEN
];
76 /* 192-195: Version flash layout */
77 char flash_layout_ver
[FLASHLAYOUTVER_LEN
];
78 /* 196-199: kernel+rootfs CRC32 */
80 /* 200-215: Unused except on Alice Gate where is is information */
81 char information2
[TAGINFO2_LEN
];
82 /* 216-219: CRC32 of image less imagetag (kernel for Alice Gate) */
84 /* 220-223: CRC32 of rootfs partition */
86 /* 224-227: CRC32 of kernel partition */
88 /* 228-235: Unused at present */
90 /* 236-239: CRC32 of header excluding last 20 bytes */
92 /* 240-255: Unused at present */
96 #endif /* __BCM63XX_TAG_H */