target/linux/ixp4xx/patches-2.6.26/162-wg302v1_mem_fixup.patch

   1 --- a/arch/arm/mach-ixp4xx/wg302v1-setup.c
   2 +++ b/arch/arm/mach-ixp4xx/wg302v1-setup.c
   3 @@ -99,6 +99,36 @@
   4         &wg302v1_eth[0],
   5  };
   6
   7 +static char wg302v1_mem_fixup[] __initdata = "mem=32M ";
   8 +
   9 +static void __init wg302v1_fixup(struct machine_desc *desc,
  10 +               struct tag *tags, char **cmdline, struct meminfo *mi)
  11 +
  12 +{
  13 +       struct tag *t = tags;
  14 +       char *p = *cmdline;
  15 +
  16 +       /* Find the end of the tags table, taking note of any cmdline tag. */
  17 +       for (; t->hdr.size; t = tag_next(t)) {
  18 +               if (t->hdr.tag == ATAG_CMDLINE) {
  19 +                       p = t->u.cmdline.cmdline;
  20 +               }
  21 +       }
  22 +
  23 +       /* Overwrite the end of the table with a new cmdline tag. */
  24 +       t->hdr.tag = ATAG_CMDLINE;
  25 +       t->hdr.size = (sizeof (struct tag_header) +
  26 +               strlen(wg302v1_mem_fixup) + strlen(p) + 1 + 4) >> 2;
  27 +       strlcpy(t->u.cmdline.cmdline, wg302v1_mem_fixup, COMMAND_LINE_SIZE);
  28 +       strlcpy(t->u.cmdline.cmdline + strlen(wg302v1_mem_fixup), p,
  29 +               COMMAND_LINE_SIZE - strlen(wg302v1_mem_fixup));
  30 +
  31 +       /* Terminate the table. */
  32 +       t = tag_next(t);
  33 +       t->hdr.tag = ATAG_NONE;
  34 +       t->hdr.size = 0;
  35 +}
  36 +
  37  static void __init wg302v1_init(void)
  38  {
  39         ixp4xx_sys_init();
  40 @@ -117,6 +147,7 @@
  41         /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
  42         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
  43         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
  44 +       .fixup          = wg302v1_fixup,
  45         .map_io         = ixp4xx_map_io,
  46         .init_irq       = ixp4xx_init_irq,
  47         .timer          = &ixp4xx_timer,