mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-26 14:40:41 +00:00
70 lines
2 KiB
C
70 lines
2 KiB
C
|
/*
|
||
|
|
* This is from the Android Project,
|
||
|
|
* Repository: https://android.googlesource.com/platform/bootable/bootloader/legacy
|
||
|
|
* File: include/boot/bootimg.h
|
||
|
|
* Commit: 4205b865141ff2e255fe1d3bd16de18e217ef06a
|
||
|
|
*
|
||
|
|
* Copyright (C) 2008 The Android Open Source Project
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _ANDROID_IMAGE_H_
|
||
|
|
#define _ANDROID_IMAGE_H_
|
||
|
|
|
||
|
|
#define ANDR_BOOT_MAGIC "ANDROID!"
|
||
|
|
#define ANDR_BOOT_MAGIC_SIZE 8
|
||
|
|
#define ANDR_BOOT_NAME_SIZE 16
|
||
|
|
#define ANDR_BOOT_ARGS_SIZE 512
|
||
|
|
|
||
|
|
struct andr_img_hdr {
|
||
|
|
char magic[ANDR_BOOT_MAGIC_SIZE];
|
||
|
|
|
||
|
|
u32 kernel_size; /* size in bytes */
|
||
|
|
u32 kernel_addr; /* physical load addr */
|
||
|
|
|
||
|
|
u32 ramdisk_size; /* size in bytes */
|
||
|
|
u32 ramdisk_addr; /* physical load addr */
|
||
|
|
|
||
|
|
u32 second_size; /* size in bytes */
|
||
|
|
u32 second_addr; /* physical load addr */
|
||
|
|
|
||
|
|
u32 tags_addr; /* physical addr for kernel tags */
|
||
|
|
u32 page_size; /* flash page size we assume */
|
||
|
|
u32 unused[2]; /* future expansion: should be 0 */
|
||
|
|
|
||
|
|
char name[ANDR_BOOT_NAME_SIZE]; /* asciiz product name */
|
||
|
|
|
||
|
|
char cmdline[ANDR_BOOT_ARGS_SIZE];
|
||
|
|
|
||
|
|
u32 id[8]; /* timestamp / checksum / sha1 / etc */
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* +-----------------+
|
||
|
|
* | boot header | 1 page
|
||
|
|
* +-----------------+
|
||
|
|
* | kernel | n pages
|
||
|
|
* +-----------------+
|
||
|
|
* | ramdisk | m pages
|
||
|
|
* +-----------------+
|
||
|
|
* | second stage | o 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
|
||
|
|
*
|
||
|
|
* 0. all entities are page_size aligned in flash
|
||
|
|
* 1. kernel and ramdisk are required (size != 0)
|
||
|
|
* 2. second is optional (second_size == 0 -> no second)
|
||
|
|
* 3. load each element (kernel, ramdisk, second) at
|
||
|
|
* the specified physical address (kernel_addr, etc)
|
||
|
|
* 4. prepare tags at tag_addr. kernel_args[] is
|
||
|
|
* appended to the kernel commandline in the tags.
|
||
|
|
* 5. r0 = 0, r1 = MACHINE_TYPE, r2 = tags_addr
|
||
|
|
* 6. if second_size != 0: jump to second_addr
|
||
|
|
* else: jump to kernel_addr
|
||
|
|
*/
|
||
|
|
#endif
|