target/linux/ixp4xx/patches-4.9/162-wg302v1_mem_fixup.patch

   1 --- a/arch/arm/mach-ixp4xx/wg302v1-setup.c
   2 +++ b/arch/arm/mach-ixp4xx/wg302v1-setup.c
   3 @@ -117,6 +117,34 @@ static struct platform_device *wg302v1_d
   4         &wg302v1_eth[0],
   5  };
   6
   7 +static char wg302v1_mem_fixup[] __initdata = " mem=32M";
   8 +
   9 +static void __init wg302v1_fixup(struct tag *tags, char **cmdline)
  10 +{
  11 +       struct tag *t = tags;
  12 +       char *p = *cmdline;
  13 +       size_t fixlen, cmdlen;
  14 +
  15 +       /* Find the end of the tags table, taking note of any cmdline tag. */
  16 +       for (; t->hdr.size; t = tag_next(t)) {
  17 +               if (t->hdr.tag == ATAG_CMDLINE) {
  18 +                       p = t->u.cmdline.cmdline;
  19 +               }
  20 +       }
  21 +
  22 +       fixlen = strlen(wg302v1_mem_fixup);
  23 +       cmdlen = strlen(p);
  24 +       if (fixlen + cmdlen >= COMMAND_LINE_SIZE)
  25 +               return;
  26 +
  27 +       /* append the fixup to the cmdline */
  28 +       memmove(p + cmdlen, wg302v1_mem_fixup, fixlen + 1);
  29 +
  30 +       /* Adjust the size of the atag if there was one */
  31 +       if (t->hdr.size)
  32 +               t->hdr.size += fixlen;
  33 +}
  34 +
  35  static void __init wg302v1_init(void)
  36  {
  37         ixp4xx_sys_init();