diff options
Diffstat (limited to 'mkbootimg/bootimg.h')
| -rw-r--r-- | mkbootimg/bootimg.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/mkbootimg/bootimg.h b/mkbootimg/bootimg.h index 5ab6195..e66e269 100644 --- a/mkbootimg/bootimg.h +++ b/mkbootimg/bootimg.h @@ -43,7 +43,8 @@ struct boot_img_hdr uint32_t tags_addr; /* physical addr for kernel tags */ uint32_t page_size; /* flash page size we assume */ - uint32_t unused[2]; /* future expansion: should be 0 */ + uint32_t dt_size; /* device tree in bytes */ + uint32_t unused; /* future expansion: should be 0 */ uint8_t name[BOOT_NAME_SIZE]; /* asciiz product name */ @@ -66,10 +67,13 @@ struct boot_img_hdr ** +-----------------+ ** | second stage | o pages ** +-----------------+ +** | device tree | p pages +** +-----------------+ ** ** n = (kernel_size + page_size - 1) / page_size ** m = (ramdisk_size + page_size - 1) / page_size ** o = (second_size + page_size - 1) / page_size +** p = (dt_size + page_size - 1) / page_size ** ** 0. all entities are page_size aligned in flash ** 1. kernel and ramdisk are required (size != 0) |