rework imagetag firmware generator and MTD partition parser to accomodate with all known imagetag versions from Broadcom and vendors, patch from Daniel Dickinson (fixes #4987).

SVN-Revision: 16393

1 files changed, 168 insertions, 25 deletions

diff --git a/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm_tag.h b/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm_tag.h
index 7c170c05d9..1613150e49 100644
--- a/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm_tag.h
+++ b/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm_tag.h
@@ -3,32 +3,175 @@
 
 #define IMAGE_LEN 10                   /* Length of Length Field */
 #define ADDRESS_LEN 12                 /* Length of Address field */
+#define TAGID_LEN  6                   /* Length of tag ID */
+#define TAGINFO_LEN 20                 /* Length of vendor information field in tag */
+#define TAGVER_LEN 4                   /* Length of Tag Version */
 
-struct bcm_tag {
-	unsigned char tagVersion[4];                            // Version of the image tag
-	unsigned char sig_1[20];                                // Company Line 1
-	unsigned char sig_2[14];                                // Company Line 2
-	unsigned char chipid[6];                                        // Chip this image is for
-	unsigned char boardid[16];                              // Board name
-	unsigned char big_endian[2];                             // Map endianness -- 1 BE 0 LE
-	unsigned char totalLength[IMAGE_LEN];           //Total length of image
-	unsigned char cfeAddress[ADDRESS_LEN];  // Address in memory of CFE
-	unsigned char cfeLength[IMAGE_LEN];             // Size of CFE
-	unsigned char cfeRootAddress[ADDRESS_LEN];         // Address in memory of rootfs
-	unsigned char cfeRootLength[IMAGE_LEN];            // Size of rootfs
-	unsigned char kernelAddress[ADDRESS_LEN];       // Address in memory of kernel
-	unsigned char kernelLength[IMAGE_LEN];  // Size of kernel
-	unsigned char dualImage[2];                             // Unused at present
-	unsigned char inactiveFlag[2];                  // Unused at present
-	unsigned char reserved1[74];                            // Reserved area not in use
-	unsigned char imageCRC[4];                              // CRC32 of images
-//      unsigned char reserved2[16];                    // Unused at present
-        unsigned char reserved2[4];                     //Unused
-        unsigned char rootAddress[ADDRESS_LEN];         // Address in memory of rootfs
-        unsigned char headerCRC[4];                     // CRC32 of header excluding tagVersion
-//      unsigned char reserved3[16];                    // Unused at present
-        unsigned char reserved3[6];                     // Unused at present
-        unsigned char rootLength[IMAGE_LEN];            // Size of rootfs
+#define NUM_TAGID 5
+#define IMAGETAG_CRC_START		0xFFFFFFFF
+
+struct tagiddesc_t {
+  char tagid[TAGID_LEN + 1];
+  char tagiddesc[80];
+};
+
+ // what is called bc308 may actually be BT Voyager-specific
+ // bc310 should be right 
+#define TAGID_DEFINITIONS { \
+  { "bccfe", "Broadcom CFE flash image" }, \
+  { "bc300", "Broadcom code version 3.00-3.06 and all ftp/tftp flash" }, \
+  { "ag306", "Alice Gate (Pirelli, based on Broadcom 3.06)" }, \
+  { "bc308", "Broadcom code version 3.08" }, \
+  { "bc310", "Broadcom code version 3.10-3.12" }, \
+}
+
+struct bcm_tag_bccfe {
+	unsigned char tagVersion[TAGVER_LEN];                    // 0-3: Version of the image tag
+	unsigned char sig_1[20];                        // 4-23: Company Line 1
+	unsigned char sig_2[14];                        // 24-37: Company Line 2
+	unsigned char chipid[6];                        // 38-43: Chip this image is for
+	unsigned char boardid[16];                      // 44-59: Board name
+	unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
+	unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
+	unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
+	unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
+	unsigned char rootAddress[ADDRESS_LEN];         // 94-105: Address in memory of rootfs
+	unsigned char rootLength[IMAGE_LEN];            // 106-115: Size of rootfs
+	unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
+	unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
+	unsigned char dualImage[2];                     // 138-139: Unused at present
+	unsigned char inactiveFlag[2];                  // 140-141: Unused at present
+        unsigned char information1[TAGINFO_LEN];        // 142-161: Unused at present
+        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
+        unsigned char tagIdCRC[4];                      // 168-171: CRC32 of tagId
+	unsigned char reserved1[44];                    // 172-215: Reserved area not in use
+	unsigned char imageCRC[4];                      // 216-219: CRC32 of images
+        unsigned char reserved2[16];                    // 220-235: Unused at present
+        unsigned char headerCRC[4];                     // 236-239: CRC32 of header excluding tagVersion
+        unsigned char reserved3[16];                    // 240-255: Unused at present
+};
+
+struct bcm_tag_bc300 {
+	unsigned char tagVersion[4];                    // 0-3: Version of the image tag
+	unsigned char sig_1[20];                        // 4-23: Company Line 1
+	unsigned char sig_2[14];                        // 24-37: Company Line 2
+	unsigned char chipid[6];                        // 38-43: Chip this image is for
+	unsigned char boardid[16];                      // 44-59: Board name
+	unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
+	unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
+	unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
+	unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
+	unsigned char flashImageStart[ADDRESS_LEN];     // 94-105: Address in memory of kernel (start of image)
+	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)
+ 	unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
+	unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
+	unsigned char dualImage[2];                     // 138-139: Unused at present
+	unsigned char inactiveFlag[2];                  // 140-141: Unused at present
+        unsigned char information1[TAGINFO_LEN];        // 142-161: Unused at present
+        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
+        unsigned char tagIdCRC[4];                      // 168-173: CRC32 to ensure validity of tagId
+        unsigned char rootAddress[ADDRESS_LEN];         // 174-183: Address in memory of rootfs partition
+        unsigned char rootLength[IMAGE_LEN];            // 184-193: Size of rootfs partition
+	unsigned char reserved1[22];                    // 194-215: Reserved area not in use
+	unsigned char imageCRC[4];                      // 216-219: CRC32 of images
+        unsigned char reserved2[16];                    // 220-235: Unused at present
+        unsigned char headerCRC[4];                     // 236-239: CRC32 of header excluding tagVersion
+        unsigned char reserved3[16];                    // 240-255: Unused at present
+};
+
+struct bcm_tag_ag306 {
+	unsigned char tagVersion[4];                    // 0-3: Version of the image tag
+	unsigned char sig_1[20];                        // 4-23: Company Line 1
+	unsigned char sig_2[14];                        // 24-37: Company Line 2
+	unsigned char chipid[6];                        // 38-43: Chip this image is for
+	unsigned char boardid[16];                      // 44-59: Board name
+	unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
+	unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
+	unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
+	unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
+	unsigned char flashImageStart[ADDRESS_LEN];     // 94-105: Address in memory of kernel (start of image)
+	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)
+ 	unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
+	unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
+	unsigned char dualImage[2];                     // 138-139: Unused at present
+	unsigned char inactiveFlag[2];                  // 140-141: Unused at present
+        unsigned char information1[TAGINFO_LEN];        // 142-161: Unused at present
+	unsigned char information2[54];                 // 162-215: Compilation and related information (not generated/used by OpenWRT)
+	unsigned char kernelCRC[4] ;                    // 216-219: CRC32 of images
+        unsigned char rootAddress[ADDRESS_LEN];         // 220-231: Address in memory of rootfs partition
+        unsigned char tagIdCRC[4];                      // 232-235: Checksum to ensure validity of tagId
+        unsigned char headerCRC[4];                     // 236-239: CRC32 of header excluding tagVersion
+	unsigned char rootLength[IMAGE_LEN];            // 240-249: Size of rootfs
+        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
+};
+
+struct bcm_tag_bc308 {
+	unsigned char tagVersion[4];                    // 0-3: Version of the image tag
+	unsigned char sig_1[20];                        // 4-23: Company Line 1
+	unsigned char sig_2[14];                        // 24-37: Company Line 2
+	unsigned char chipid[6];                        // 38-43: Chip this image is for
+	unsigned char boardid[16];                      // 44-59: Board name
+	unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
+	unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
+	unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
+	unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
+	unsigned char flashImageStart[ADDRESS_LEN];     // 94-105: Address in memory of kernel (start of image)
+	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)
+ 	unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
+	unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
+	unsigned char dualImage[2];                     // 138-139: Unused at present
+	unsigned char inactiveFlag[2];                  // 140-141: Unused at present
+        unsigned char information1[TAGINFO_LEN+2];      // 142-163: Unused at present
+        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
+        unsigned char rootAddress[ADDRESS_LEN];         // 170-181: Address in memory of rootfs partition
+        unsigned char rootLength[IMAGE_LEN];            // 182-191: Size of rootfs partition
+        unsigned char flashLayoutVer[2];                // 192-193: Version flash layout
+	unsigned char curflashLayoutVer[2];             // 194-195: Unused at present
+        unsigned char kernelCRC[4];                     // 196-199: Guessed to be kernel CRC
+        unsigned char reserved4[16];                    // 200-215: Reserved area; unused at present
+	unsigned char imageCRC[4];                      // 216-219: CRC32 of images
+        unsigned char reserved2[12];                    // 220-231: Unused at present
+        unsigned char tagIdCRC[4];                      // 232-235: CRC32 to ensure validity of tagId
+        unsigned char headerCRC[4];                     // 236-239: CRC32 of header excluding tagVersion
+        unsigned char reserved3[16];                    // 240-255: Unused at present
+};
+
+struct bcm_tag_bc310 {
+	unsigned char tagVersion[4];                    // 0-3: Version of the image tag
+	unsigned char sig_1[20];                        // 4-23: Company Line 1
+	unsigned char sig_2[14];                        // 24-37: Company Line 2
+	unsigned char chipid[6];                        // 38-43: Chip this image is for
+	unsigned char boardid[16];                      // 44-59: Board name
+	unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
+	unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
+	unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
+	unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
+	unsigned char flashImageStart[ADDRESS_LEN];     // 94-105: Address in memory of kernel (start of image)
+	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)
+ 	unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
+	unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
+	unsigned char dualImage[2];                     // 138-139: Unused at present
+	unsigned char inactiveFlag[2];                  // 140-141: Unused at present
+        unsigned char information1[TAGINFO_LEN];        // 142-161: Unused at present; Some vendors use this for optional information
+        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
+        unsigned char tagIdCRC[4];                      // 168-171: CRC32 to ensure validity of tagId
+        unsigned char rootAddress[ADDRESS_LEN];         // 172-183: Address in memory of rootfs partition
+        unsigned char rootLength[IMAGE_LEN];            // 184-193: Size of rootfs partition
+	unsigned char reserved1[22];                    // 193-215: Reserved area not in use
+	unsigned char imageCRC[4];                      // 216-219: CRC32 of images
+        unsigned char rootfsCRC[4];                     // 220-227: CRC32 of rootfs partition
+        unsigned char kernelCRC[4];                     // 224-227: CRC32 of kernel partition
+        unsigned char reserved2[8];                     // 228-235: Unused at present
+        unsigned char headerCRC[4];                     // 235-239: CRC32 of header excluding tagVersion
+        unsigned char reserved3[16];                    // 240-255: Unused at present
+};
+
+union bcm_tag {
+  struct bcm_tag_bccfe bccfe;
+  struct bcm_tag_bc300 bc300;
+  struct bcm_tag_ag306 ag306;
+  struct bcm_tag_bc308 bc308;
+  struct bcm_tag_bc310 bc310;
 };
 
 #endif /* __BCM63XX_TAG_H */