target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm_tag.h

   1 #ifndef __BCM63XX_TAG_H
   2 #define __BCM63XX_TAG_H
   3
   4 #define IMAGE_LEN 10                   /* Length of Length Field */
   5 #define ADDRESS_LEN 12                 /* Length of Address field */
   6 #define TAGID_LEN  6                   /* Length of tag ID */
   7 #define TAGINFO_LEN 20                 /* Length of vendor information field in tag */
   8 #define TAGVER_LEN 4                   /* Length of Tag Version */
   9
  10 #define NUM_TAGID 5
  11 #define IMAGETAG_CRC_START              0xFFFFFFFF
  12
  13 struct tagiddesc_t {
  14   char tagid[TAGID_LEN + 1];
  15   char tagiddesc[80];
  16 };
  17
  18  // what is called bc308 may actually be BT Voyager-specific
  19  // bc310 should be right
  20 #define TAGID_DEFINITIONS { \
  21   { "bccfe", "Broadcom CFE flash image" }, \
  22   { "bc300", "Broadcom code version 3.00-3.06 and all ftp/tftp flash" }, \
  23   { "ag306", "Alice Gate (Pirelli, based on Broadcom 3.06)" }, \
  24   { "bc308", "Broadcom code version 3.08" }, \
  25   { "bc310", "Broadcom code version 3.10-3.12" }, \
  26 }
  27
  28 struct bcm_tag_bccfe {
  29         unsigned char tagVersion[TAGVER_LEN];                    // 0-3: Version of the image tag
  30         unsigned char sig_1[20];                        // 4-23: Company Line 1
  31         unsigned char sig_2[14];                        // 24-37: Company Line 2
  32         unsigned char chipid[6];                        // 38-43: Chip this image is for
  33         unsigned char boardid[16];                      // 44-59: Board name
  34         unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
  35         unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
  36         unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
  37         unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
  38         unsigned char rootAddress[ADDRESS_LEN];         // 94-105: Address in memory of rootfs
  39         unsigned char rootLength[IMAGE_LEN];            // 106-115: Size of rootfs
  40         unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
  41         unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
  42         unsigned char dualImage[2];                     // 138-139: Unused at present
  43         unsigned char inactiveFlag[2];                  // 140-141: Unused at present
  44         unsigned char information1[TAGINFO_LEN];        // 142-161: Unused at present
  45         unsigned char tagId[TAGID_LEN];                 // 162-167: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced
  46         unsigned char tagIdCRC[4];                      // 168-171: CRC32 of tagId
  47         unsigned char reserved1[44];                    // 172-215: Reserved area not in use
  48         unsigned char imageCRC[4];                      // 216-219: CRC32 of images
  49         unsigned char reserved2[16];                    // 220-235: Unused at present
  50         unsigned char headerCRC[4];                     // 236-239: CRC32 of header excluding tagVersion
  51         unsigned char reserved3[16];                    // 240-255: Unused at present
  52 };
  53
  54 struct bcm_tag_bc300 {
  55         unsigned char tagVersion[4];                    // 0-3: Version of the image tag
  56         unsigned char sig_1[20];                        // 4-23: Company Line 1
  57         unsigned char sig_2[14];                        // 24-37: Company Line 2
  58         unsigned char chipid[6];                        // 38-43: Chip this image is for
  59         unsigned char boardid[16];                      // 44-59: Board name
  60         unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
  61         unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
  62         unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
  63         unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
  64         unsigned char flashImageStart[ADDRESS_LEN];     // 94-105: Address in memory of kernel (start of image)
  65         unsigned char flashRootLength[IMAGE_LEN];       // 106-115: Size of rootfs + deadcode (web flash uses this + kernelLength to determine the size of the kernel+rootfs flash image)
  66         unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
  67         unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
  68         unsigned char dualImage[2];                     // 138-139: Unused at present
  69         unsigned char inactiveFlag[2];                  // 140-141: Unused at present
  70         unsigned char information1[TAGINFO_LEN];        // 142-161: Unused at present
  71         unsigned char tagId[TAGID_LEN];                 // 162-167: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced
  72         unsigned char tagIdCRC[4];                      // 168-173: CRC32 to ensure validity of tagId
  73         unsigned char rootAddress[ADDRESS_LEN];         // 174-183: Address in memory of rootfs partition
  74         unsigned char rootLength[IMAGE_LEN];            // 184-193: Size of rootfs partition
  75         unsigned char reserved1[22];                    // 194-215: Reserved area not in use
  76         unsigned char imageCRC[4];                      // 216-219: CRC32 of images
  77         unsigned char reserved2[16];                    // 220-235: Unused at present
  78         unsigned char headerCRC[4];                     // 236-239: CRC32 of header excluding tagVersion
  79         unsigned char reserved3[16];                    // 240-255: Unused at present
  80 };
  81
  82 struct bcm_tag_ag306 {
  83         unsigned char tagVersion[4];                    // 0-3: Version of the image tag
  84         unsigned char sig_1[20];                        // 4-23: Company Line 1
  85         unsigned char sig_2[14];                        // 24-37: Company Line 2
  86         unsigned char chipid[6];                        // 38-43: Chip this image is for
  87         unsigned char boardid[16];                      // 44-59: Board name
  88         unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
  89         unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
  90         unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
  91         unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
  92         unsigned char flashImageStart[ADDRESS_LEN];     // 94-105: Address in memory of kernel (start of image)
  93         unsigned char flashRootLength[IMAGE_LEN];       // 106-115: Size of rootfs + deadcode (web flash uses this + kernelLength to determine the size of the kernel+rootfs flash image)
  94         unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
  95         unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
  96         unsigned char dualImage[2];                     // 138-139: Unused at present
  97         unsigned char inactiveFlag[2];                  // 140-141: Unused at present
  98         unsigned char information1[TAGINFO_LEN];        // 142-161: Unused at present
  99         unsigned char information2[54];                 // 162-215: Compilation and related information (not generated/used by OpenWRT)
 100         unsigned char kernelCRC[4] ;                    // 216-219: CRC32 of images
 101         unsigned char rootAddress[ADDRESS_LEN];         // 220-231: Address in memory of rootfs partition
 102         unsigned char tagIdCRC[4];                      // 232-235: Checksum to ensure validity of tagId
 103         unsigned char headerCRC[4];                     // 236-239: CRC32 of header excluding tagVersion
 104         unsigned char rootLength[IMAGE_LEN];            // 240-249: Size of rootfs
 105         unsigned char tagId[TAGID_LEN];                 // 250-255: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced
 106 };
 107
 108 struct bcm_tag_bc308 {
 109         unsigned char tagVersion[4];                    // 0-3: Version of the image tag
 110         unsigned char sig_1[20];                        // 4-23: Company Line 1
 111         unsigned char sig_2[14];                        // 24-37: Company Line 2
 112         unsigned char chipid[6];                        // 38-43: Chip this image is for
 113         unsigned char boardid[16];                      // 44-59: Board name
 114         unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
 115         unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
 116         unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
 117         unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
 118         unsigned char flashImageStart[ADDRESS_LEN];     // 94-105: Address in memory of kernel (start of image)
 119         unsigned char flashRootLength[IMAGE_LEN];       // 106-115: Size of rootfs + deadcode (web flash uses this + kernelLength to determine the size of the kernel+rootfs flash image)
 120         unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
 121         unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
 122         unsigned char dualImage[2];                     // 138-139: Unused at present
 123         unsigned char inactiveFlag[2];                  // 140-141: Unused at present
 124         unsigned char information1[TAGINFO_LEN+2];      // 142-163: Unused at present
 125         unsigned char tagId[TAGID_LEN];                 // 164-169: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced
 126         unsigned char rootAddress[ADDRESS_LEN];         // 170-181: Address in memory of rootfs partition
 127         unsigned char rootLength[IMAGE_LEN];            // 182-191: Size of rootfs partition
 128         unsigned char flashLayoutVer[2];                // 192-193: Version flash layout
 129         unsigned char curflashLayoutVer[2];             // 194-195: Unused at present
 130         unsigned char kernelCRC[4];                     // 196-199: Guessed to be kernel CRC
 131         unsigned char reserved4[16];                    // 200-215: Reserved area; unused at present
 132         unsigned char imageCRC[4];                      // 216-219: CRC32 of images
 133         unsigned char reserved2[12];                    // 220-231: Unused at present
 134         unsigned char tagIdCRC[4];                      // 232-235: CRC32 to ensure validity of tagId
 135         unsigned char headerCRC[4];                     // 236-239: CRC32 of header excluding tagVersion
 136         unsigned char reserved3[16];                    // 240-255: Unused at present
 137 };
 138
 139 struct bcm_tag_bc310 {
 140         unsigned char tagVersion[4];                    // 0-3: Version of the image tag
 141         unsigned char sig_1[20];                        // 4-23: Company Line 1
 142         unsigned char sig_2[14];                        // 24-37: Company Line 2
 143         unsigned char chipid[6];                        // 38-43: Chip this image is for
 144         unsigned char boardid[16];                      // 44-59: Board name
 145         unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
 146         unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
 147         unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
 148         unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
 149         unsigned char flashImageStart[ADDRESS_LEN];     // 94-105: Address in memory of kernel (start of image)
 150         unsigned char flashRootLength[IMAGE_LEN];       // 106-115: Size of rootfs + deadcode (web flash uses this + kernelLength to determine the size of the kernel+rootfs flash image)
 151         unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
 152         unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
 153         unsigned char dualImage[2];                     // 138-139: Unused at present
 154         unsigned char inactiveFlag[2];                  // 140-141: Unused at present
 155         unsigned char information1[TAGINFO_LEN];        // 142-161: Unused at present; Some vendors use this for optional information
 156         unsigned char tagId[6];                         // 162-167: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced
 157         unsigned char tagIdCRC[4];                      // 168-171: CRC32 to ensure validity of tagId
 158         unsigned char rootAddress[ADDRESS_LEN];         // 172-183: Address in memory of rootfs partition
 159         unsigned char rootLength[IMAGE_LEN];            // 184-193: Size of rootfs partition
 160         unsigned char reserved1[22];                    // 193-215: Reserved area not in use
 161         unsigned char imageCRC[4];                      // 216-219: CRC32 of images
 162         unsigned char rootfsCRC[4];                     // 220-227: CRC32 of rootfs partition
 163         unsigned char kernelCRC[4];                     // 224-227: CRC32 of kernel partition
 164         unsigned char reserved2[8];                     // 228-235: Unused at present
 165         unsigned char headerCRC[4];                     // 235-239: CRC32 of header excluding tagVersion
 166         unsigned char reserved3[16];                    // 240-255: Unused at present
 167 };
 168
 169 union bcm_tag {
 170   struct bcm_tag_bccfe bccfe;
 171   struct bcm_tag_bc300 bc300;
 172   struct bcm_tag_ag306 ag306;
 173   struct bcm_tag_bc308 bc308;
 174   struct bcm_tag_bc310 bc310;
 175 };
 176
 177 #endif /* __BCM63XX_TAG_H */