98 lines
3.5 KiB
C
98 lines
3.5 KiB
C
![]() |
#ifndef __BCM963XX_TAG_H
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#define __BCM963XX_TAG_H
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#define TAGVER_LEN 4 /* Length of Tag Version */
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#define TAGLAYOUT_LEN 4 /* Length of FlashLayoutVer */
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#define SIG1_LEN 20 /* Company Signature 1 Length */
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#define SIG2_LEN 14 /* Company Signature 2 Lenght */
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#define BOARDID_LEN 16 /* Length of BoardId */
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#define ENDIANFLAG_LEN 2 /* Endian Flag Length */
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#define CHIPID_LEN 6 /* Chip Id Length */
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#define IMAGE_LEN 10 /* Length of Length Field */
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#define ADDRESS_LEN 12 /* Length of Address field */
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#define DUALFLAG_LEN 2 /* Dual Image flag Length */
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#define INACTIVEFLAG_LEN 2 /* Inactie Flag Length */
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#define RSASIG_LEN 20 /* Length of RSA Signature in tag */
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#define TAGINFO1_LEN 30 /* Length of vendor information field1 in tag */
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#define FLASHLAYOUTVER_LEN 4 /* Length of Flash Layout Version String tag */
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#define TAGINFO2_LEN 16 /* Length of vendor information field2 in tag */
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#define CRC_LEN 4 /* Length of CRC in bytes */
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#define ALTTAGINFO_LEN 54 /* Alternate length for vendor information; Pirelli */
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#define NUM_PIRELLI 2
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#define IMAGETAG_CRC_START 0xFFFFFFFF
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#define PIRELLI_BOARDS { \
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"AGPF-S0", \
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"DWV-S0", \
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}
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/*
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* The broadcom firmware assumes the rootfs starts the image,
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* therefore uses the rootfs start (flash_image_address)
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* to determine where to flash the image. Since we have the kernel first
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* we have to give it the kernel address, but the crc uses the length
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* associated with this address (root_length), which is added to the kernel
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* length (kernel_length) to determine the length of image to flash and thus
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* needs to be rootfs + deadcode (jffs2 EOF marker)
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*/
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struct bcm_tag {
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/* 0-3: Version of the image tag */
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char tag_version[TAGVER_LEN];
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/* 4-23: Company Line 1 */
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char sig_1[SIG1_LEN];
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/* 24-37: Company Line 2 */
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char sig_2[SIG2_LEN];
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/* 38-43: Chip this image is for */
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char chip_id[CHIPID_LEN];
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/* 44-59: Board name */
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char board_id[BOARDID_LEN];
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/* 60-61: Map endianness -- 1 BE 0 LE */
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char big_endian[ENDIANFLAG_LEN];
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/* 62-71: Total length of image */
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char total_length[IMAGE_LEN];
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/* 72-83: Address in memory of CFE */
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char cfe__address[ADDRESS_LEN];
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/* 84-93: Size of CFE */
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char cfe_length[IMAGE_LEN];
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/* 94-105: Address in memory of image start
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* (kernel for OpenWRT, rootfs for stock firmware)
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*/
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char flash_image_start[ADDRESS_LEN];
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/* 106-115: Size of rootfs */
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char root_length[IMAGE_LEN];
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/* 116-127: Address in memory of kernel */
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char kernel_address[ADDRESS_LEN];
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/* 128-137: Size of kernel */
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char kernel_length[IMAGE_LEN];
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/* 138-139: Unused at the moment */
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char dual_image[DUALFLAG_LEN];
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/* 140-141: Unused at the moment */
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char inactive_flag[INACTIVEFLAG_LEN];
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/* 142-161: RSA Signature (not used; some vendors may use this) */
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char rsa_signature[RSASIG_LEN];
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/* 162-191: Compilation and related information (not used in OpenWrt) */
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char information1[TAGINFO1_LEN];
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/* 192-195: Version flash layout */
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char flash_layout_ver[FLASHLAYOUTVER_LEN];
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/* 196-199: kernel+rootfs CRC32 */
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char fskernel_crc[CRC_LEN];
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/* 200-215: Unused except on Alice Gate where is is information */
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char information2[TAGINFO2_LEN];
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/* 216-219: CRC32 of image less imagetag (kernel for Alice Gate) */
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char image_crc[CRC_LEN];
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/* 220-223: CRC32 of rootfs partition */
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char rootfs_crc[CRC_LEN];
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/* 224-227: CRC32 of kernel partition */
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char kernel_crc[CRC_LEN];
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/* 228-235: Unused at present */
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char reserved1[8];
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/* 236-239: CRC32 of header excluding tagVersion */
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char header_crc[CRC_LEN];
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/* 240-255: Unused at present */
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char reserved2[16];
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};
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#endif /* __BCM63XX_TAG_H */
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