target/linux/generic-2.6/patches-2.6.26/071-redboot_boardconfig.patch

   1 Index: linux-2.6.26.2/drivers/mtd/redboot.c
   2 ===================================================================
   3 --- linux-2.6.26.2.orig/drivers/mtd/redboot.c   2008-08-19 19:32:17.000000000 +0200
   4 +++ linux-2.6.26.2/drivers/mtd/redboot.c        2008-08-19 19:47:34.000000000 +0200
   5 @@ -13,6 +13,8 @@
   6  #include <linux/mtd/mtd.h>
   7  #include <linux/mtd/partitions.h>
   8
   9 +#define BOARD_CONFIG_PART              "boardconfig"
  10 +
  11  struct fis_image_desc {
  12      unsigned char name[16];      // Null terminated name
  13      uint32_t     flash_base;    // Address within FLASH of image
  14 @@ -43,6 +45,7 @@
  15                               struct mtd_partition **pparts,
  16                               unsigned long fis_origin)
  17  {
  18 +       unsigned long max_offset = 0;
  19         int nrparts = 0;
  20         struct fis_image_desc *buf;
  21         struct mtd_partition *parts;
  22 @@ -217,14 +220,14 @@
  23                 }
  24         }
  25  #endif
  26 -       parts = kzalloc(sizeof(*parts)*nrparts + nulllen + namelen, GFP_KERNEL);
  27 +       parts = kzalloc(sizeof(*parts) * (nrparts + 1) + nulllen + namelen + sizeof(BOARD_CONFIG_PART), GFP_KERNEL);
  28
  29         if (!parts) {
  30                 ret = -ENOMEM;
  31                 goto out;
  32         }
  33
  34 -       nullname = (char *)&parts[nrparts];
  35 +       nullname = (char *)&parts[nrparts + 1];
  36  #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
  37         if (nulllen > 0) {
  38                 strcpy(nullname, nullstring);
  39 @@ -243,6 +246,8 @@
  40         }
  41  #endif
  42         for ( ; i<nrparts; i++) {
  43 +               if(max_offset < buf[i].flash_base + buf[i].size)
  44 +                       max_offset = buf[i].flash_base + buf[i].size;
  45                 parts[i].size = fl->img->size;
  46                 parts[i].offset = fl->img->flash_base;
  47                 parts[i].name = names;
  48 @@ -276,6 +281,14 @@
  49                 fl = fl->next;
  50                 kfree(tmp_fl);
  51         }
  52 +       if(master->size - max_offset >= master->erasesize)
  53 +       {
  54 +               parts[nrparts].size = master->size - max_offset;
  55 +               parts[nrparts].offset = max_offset;
  56 +               parts[nrparts].name = names;
  57 +               strcpy(names, BOARD_CONFIG_PART);
  58 +               nrparts++;
  59 +       }
  60         ret = nrparts;
  61         *pparts = parts;
  62   out: