target/linux/brcm63xx/patches-3.8/304-boardid_fixup.patch

   1 --- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
   2 +++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
   3 @@ -33,11 +33,16 @@
   4  #include <bcm63xx_dev_usb_usbd.h>
   5  #include <board_bcm963xx.h>
   6
   7 +#include <uapi/linux/bcm963xx_tag.h>
   8 +
   9  #define PFX    "board_bcm963xx: "
  10
  11  #define BCM963XX_KEYS_POLL_INTERVAL    20
  12  #define BCM963XX_KEYS_DEBOUNCE_INTERVAL        (BCM963XX_KEYS_POLL_INTERVAL * 3)
  13
  14 +#define CFE_OFFSET_64K                 0x10000
  15 +#define CFE_OFFSET_128K                        0x20000
  16 +
  17  static struct board_info board;
  18
  19  /*
  20 @@ -742,6 +747,30 @@ const char *board_get_name(void)
  21         return board.name;
  22  }
  23
  24 +static void __init boardid_fixup(u8 *boot_addr)
  25 +{
  26 +       struct bcm_tag *tag = (struct bcm_tag *)(boot_addr + CFE_OFFSET_64K);
  27 +       char *board_name = (char *)bcm63xx_nvram_get_name();
  28 +
  29 +       /* check if bcm_tag is at 64k offset */
  30 +       if (strncmp(board_name, tag->board_id, BOARDID_LEN) != 0) {
  31 +               /* else try 128k */
  32 +               tag = (struct bcm_tag *)(boot_addr + CFE_OFFSET_128K);
  33 +               if (strncmp(board_name, tag->board_id, BOARDID_LEN) != 0) {
  34 +                       /* No tag found */
  35 +                       printk(KERN_DEBUG "No bcm_tag found!\n");
  36 +                       return;
  37 +               }
  38 +       }
  39 +       /* check if we should override the boardid */
  40 +       if (tag->information1[0] != '+')
  41 +               return;
  42 +
  43 +       strncpy(board_name, &tag->information1[1], BOARDID_LEN);
  44 +
  45 +       printk(KERN_INFO "Overriding boardid with '%s'\n", board_name);
  46 +}
  47 +
  48  /*
  49   * early init callback, read nvram data from flash and checksum it
  50   */
  51 @@ -778,6 +807,11 @@ void __init board_prom_init(void)
  52                 return;
  53         }
  54
  55 +       if (strcmp(cfe_version, "unknown") != 0) {
  56 +               /* cfe present */
  57 +               boardid_fixup(boot_addr);
  58 +       }
  59 +
  60         board_name = bcm63xx_nvram_get_name();
  61         /* find board by name */
  62         for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) {