target/linux/ixp4xx/patches-3.3/162-wg302v1_mem_fixup.patch

   1 --- a/arch/arm/mach-ixp4xx/wg302v1-setup.c
   2 +++ b/arch/arm/mach-ixp4xx/wg302v1-setup.c
   3 @@ -115,6 +115,35 @@ 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 +                                struct meminfo *mi)
  11 +{
  12 +       struct tag *t = tags;
  13 +       char *p = *cmdline;
  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 +       /* Overwrite the end of the table with a new cmdline tag. */
  23 +       t->hdr.tag = ATAG_CMDLINE;
  24 +       t->hdr.size = (sizeof (struct tag_header) +
  25 +               strlen(wg302v1_mem_fixup) + strlen(p) + 1 + 4) >> 2;
  26 +       strlcpy(t->u.cmdline.cmdline, wg302v1_mem_fixup, COMMAND_LINE_SIZE);
  27 +       strlcpy(t->u.cmdline.cmdline + strlen(wg302v1_mem_fixup), p,
  28 +               COMMAND_LINE_SIZE - strlen(wg302v1_mem_fixup));
  29 +
  30 +       /* Terminate the table. */
  31 +       t = tag_next(t);
  32 +       t->hdr.tag = ATAG_NONE;
  33 +       t->hdr.size = 0;
  34 +}
  35 +
  36  static void __init wg302v1_init(void)
  37  {
  38         ixp4xx_sys_init();