package/boot/uboot-mediatek/patches/313-mt7623-select-rootdisk.patch

   1 --- a/board/mediatek/mt7623/mt7623_rfb.c
   2 +++ b/board/mediatek/mt7623/mt7623_rfb.c
   3 @@ -91,3 +91,43 @@ int board_late_init(void)
   4         env_relocate();
   5         return 0;
   6  }
   7 +
   8 +int ft_system_setup(void *blob, struct bd_info *bd)
   9 +{
  10 +       const u32 *media_handle_p;
  11 +       int chosen, len, ret;
  12 +       const char *media;
  13 +       u32 media_handle;
  14 +
  15 +#ifdef CONFIG_MMC
  16 +       switch (mmc_get_boot_dev()) {
  17 +       case 0:
  18 +               media = "rootdisk-emmc";
  19 +               break
  20 +               ;;
  21 +       case 1:
  22 +               media = "rootdisk-sd";
  23 +               break
  24 +               ;;
  25 +       }
  26 +
  27 +       chosen = fdt_path_offset(blob, "/chosen");
  28 +       if (chosen <= 0)
  29 +               return 0;
  30 +
  31 +       media_handle_p = fdt_getprop(blob, chosen, media, &len);
  32 +       if (media_handle_p <= 0 || len != 4)
  33 +               return 0;
  34 +
  35 +       media_handle = *media_handle_p;
  36 +       ret = fdt_setprop(blob, chosen, "rootdisk", &media_handle, sizeof(media_handle));
  37 +       if (ret) {
  38 +               printf("cannot set media phandle %s as rootdisk /chosen node\n", media);
  39 +               return ret;
  40 +       }
  41 +
  42 +       printf("set /chosen/rootdisk to bootrom media: %s (phandle 0x%08x)\n", media, fdt32_to_cpu(media_handle));
  43 +#endif
  44 +
  45 +       return 0;
  46 +}