[brcm63xx] move bcm_tag.h out of the flashmap patch so that user-land tools can re...

[openwrt.git] / tools / firmware-utils / src / mkzynfw.c

diff --git a/tools/firmware-utils/src/mkzynfw.c b/tools/firmware-utils/src/mkzynfw.c
index 6beb007..5c1bc24 100644 (file)
--- a/tools/firmware-utils/src/mkzynfw.c
+++ b/tools/firmware-utils/src/mkzynfw.c
@@ -1,5 +1,4 @@
 /*
- *  $Id$
  *
  *  Copyright (C) 2007-2008 OpenWrt.org
  *  Copyright (C) 2007-2008 Gabor Juhos <juhosg at openwrt.org>
@@ -564,6 +563,15 @@ write_out_header(FILE *outfile, struct zyn_rombin_hdr *hdr)
        t.ccsum = HOST_TO_BE16(hdr->ccsum);
        t.mmap_addr = HOST_TO_BE32(hdr->mmap_addr);
 
+       DBG(2, "hdr.addr      = 0x%08x", hdr->addr);
+       DBG(2, "hdr.type      = 0x%02x", hdr->type);
+       DBG(2, "hdr.osize     = 0x%08x", hdr->osize);
+       DBG(2, "hdr.csize     = 0x%08x", hdr->csize);
+       DBG(2, "hdr.flags     = 0x%02x", hdr->flags);
+       DBG(2, "hdr.ocsum     = 0x%04x", hdr->ocsum);
+       DBG(2, "hdr.ccsum     = 0x%04x", hdr->ccsum);
+       DBG(2, "hdr.mmap_addr = 0x%08x", hdr->mmap_addr);
+
        return write_out_data(outfile, (uint8_t *)&t, sizeof(t), NULL);
 }
 
@@ -625,6 +633,35 @@ block_stat_file(struct fw_block *block)
 }
 
 
+int
+read_magic(uint16_t *magic)
+{
+       FILE *f;
+       int res;
+
+       errno = 0;
+       f = fopen(bootext_block->file_name,"r");
+       if (errno) {
+               ERRS("unable to open file: %s", bootext_block->file_name);
+               return -1;
+       }
+
+       errno = 0;
+       fread(magic, 2, 1, f);
+       if (errno != 0) {
+               ERRS("unable to read from file: %s", bootext_block->file_name);
+               res = -1;
+               goto err;
+       }
+
+       res = 0;
+
+err:
+       fclose(f);
+       return res;
+}
+
+
 int
 write_out_file(FILE *outfile, char *name, size_t len, struct csum_state *css)
 {
@@ -698,6 +735,8 @@ write_out_image(FILE *outfile)
        int i, res;
        uint32_t offset;
        uint32_t padlen;
+       uint16_t csum;
+       uint16_t t;
 
        /* setup header fields */
        memset(&hdr, 0, sizeof(hdr));
@@ -731,19 +770,16 @@ write_out_image(FILE *outfile)
 
        offset += padlen;
 
-       mmap.addr = board->flash_base + board->romio_offs + offset;
-       hdr.mmap_addr = mmap.addr;
+       mmap.addr = board->flash_base + offset;
        res = write_out_mmap(outfile, &mmap, &css);
        if (res)
                return res;
 
        offset += MMAP_DATA_SIZE;
-       hdr.osize = offset - sizeof(hdr) - board->romio_offs;
-       hdr.ocsum = csum_get(&css);
 
        if ((offset - board->romio_offs) < board->bootext_size) {
                padlen = board->romio_offs + board->bootext_size - offset;
-               res = write_out_padding(outfile, padlen, 0xFF, NULL);
+               res = write_out_padding(outfile, padlen, 0xFF, &css);
                if (res)
                        return res;
                offset += padlen;
@@ -758,17 +794,45 @@ write_out_image(FILE *outfile)
                        continue;
 
                padlen = ALIGN(offset, block->align) - offset;
-               res = write_out_padding(outfile, padlen, 0xFF, NULL);
+               res = write_out_padding(outfile, padlen, 0xFF, &css);
                if (res)
                        return res;
                offset += padlen;
 
-               res = write_out_block(outfile, block, NULL);
+               res = write_out_block(outfile, block, &css);
                if (res)
                        return res;
                offset += block->file_size;
        }
 
+       padlen = ALIGN(offset, 4) - offset;
+       res = write_out_padding(outfile, padlen, 0xFF, &css);
+       if (res)
+               return res;
+       offset += padlen;
+
+       csum = csum_get(&css);
+       hdr.mmap_addr = mmap.addr;
+       hdr.osize = 2;
+
+       res = read_magic(&hdr.ocsum);
+       if (res)
+               return res;
+       hdr.ocsum = BE16_TO_HOST(hdr.ocsum);
+
+       if (csum <= hdr.ocsum)
+               t = hdr.ocsum - csum;
+       else
+               t = hdr.ocsum - csum - 1;
+
+       DBG(2, "ocsum=%04x, csum=%04x, fix=%04x", hdr.ocsum, csum, t);
+
+       t = HOST_TO_BE16(t);
+       res = write_out_data(outfile, (uint8_t *)&t, 2, NULL);
+       if (res)
+               return res;
+
+
        res = write_out_header(outfile, &hdr);
 
        return res;
@@ -884,7 +948,7 @@ parse_opt_block(char ch, char *arg)
                }
        }
 
-       if(block->type == BLOCK_TYPE_BOOTEXT)
+       if (block->type == BLOCK_TYPE_BOOTEXT)
                return 0;
 
        p = argv[i++];