1dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* tools/mkbootimg/bootimg.h 2dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** 3dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** Copyright 2007, The Android Open Source Project 4dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** 5dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** Licensed under the Apache License, Version 2.0 (the "License"); 6dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** you may not use this file except in compliance with the License. 7dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** You may obtain a copy of the License at 8dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** 9dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** http://www.apache.org/licenses/LICENSE-2.0 10dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** 11dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** Unless required by applicable law or agreed to in writing, software 12dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** distributed under the License is distributed on an "AS IS" BASIS, 13dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** See the License for the specific language governing permissions and 15dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** limitations under the License. 16dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project*/ 17dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 18dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand#include <stdint.h> 19dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand 20dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#ifndef _BOOT_IMAGE_H_ 21dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define _BOOT_IMAGE_H_ 22dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 23dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projecttypedef struct boot_img_hdr boot_img_hdr; 24dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 25dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define BOOT_MAGIC "ANDROID!" 26dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define BOOT_MAGIC_SIZE 8 27dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define BOOT_NAME_SIZE 16 28dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define BOOT_ARGS_SIZE 512 29d35ce3563b4d86702cec4c8f7031fb8a1c55cac2Andrew Boie#define BOOT_EXTRA_ARGS_SIZE 1024 30dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 31dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct boot_img_hdr 32dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 33dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand uint8_t magic[BOOT_MAGIC_SIZE]; 34dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 35dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand uint32_t kernel_size; /* size in bytes */ 36dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand uint32_t kernel_addr; /* physical load addr */ 37dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 38dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand uint32_t ramdisk_size; /* size in bytes */ 39dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand uint32_t ramdisk_addr; /* physical load addr */ 40dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 41dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand uint32_t second_size; /* size in bytes */ 42dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand uint32_t second_addr; /* physical load addr */ 43dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 44dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand uint32_t tags_addr; /* physical addr for kernel tags */ 45dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand uint32_t page_size; /* flash page size we assume */ 4605d2a9002ef3509efd1a1ab2ebf0a86561e61607Sami Tolvanen uint32_t unused; /* reserved for future expansion: MUST be 0 */ 4705d2a9002ef3509efd1a1ab2ebf0a86561e61607Sami Tolvanen 4805d2a9002ef3509efd1a1ab2ebf0a86561e61607Sami Tolvanen /* operating system version and security patch level; for 4905d2a9002ef3509efd1a1ab2ebf0a86561e61607Sami Tolvanen * version "A.B.C" and patch level "Y-M-D": 5005d2a9002ef3509efd1a1ab2ebf0a86561e61607Sami Tolvanen * ver = A << 14 | B << 7 | C (7 bits for each of A, B, C) 5105d2a9002ef3509efd1a1ab2ebf0a86561e61607Sami Tolvanen * lvl = ((Y - 2000) & 127) << 4 | M (7 bits for Y, 4 bits for M) 5205d2a9002ef3509efd1a1ab2ebf0a86561e61607Sami Tolvanen * os_version = ver << 11 | lvl */ 5305d2a9002ef3509efd1a1ab2ebf0a86561e61607Sami Tolvanen uint32_t os_version; 54dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 55dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand uint8_t name[BOOT_NAME_SIZE]; /* asciiz product name */ 56d35ce3563b4d86702cec4c8f7031fb8a1c55cac2Andrew Boie 57dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand uint8_t cmdline[BOOT_ARGS_SIZE]; 58dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 59dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand uint32_t id[8]; /* timestamp / checksum / sha1 / etc */ 60d35ce3563b4d86702cec4c8f7031fb8a1c55cac2Andrew Boie 61d35ce3563b4d86702cec4c8f7031fb8a1c55cac2Andrew Boie /* Supplemental command line data; kept here to maintain 62d35ce3563b4d86702cec4c8f7031fb8a1c55cac2Andrew Boie * binary compatibility with older versions of mkbootimg */ 63dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand uint8_t extra_cmdline[BOOT_EXTRA_ARGS_SIZE]; 64dfff829062ff9f5dabc2a6afd2a241a7bb12266eRom Lemarchand} __attribute__((packed)); 65dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 66dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 67dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** +-----------------+ 68dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** | boot header | 1 page 69dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** +-----------------+ 70dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** | kernel | n pages 71dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** +-----------------+ 72dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** | ramdisk | m pages 73dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** +-----------------+ 74dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** | second stage | o pages 75dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** +-----------------+ 76dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** 77dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** n = (kernel_size + page_size - 1) / page_size 78dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** m = (ramdisk_size + page_size - 1) / page_size 79dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** o = (second_size + page_size - 1) / page_size 80dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** 81dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** 0. all entities are page_size aligned in flash 82dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** 1. kernel and ramdisk are required (size != 0) 83dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** 2. second is optional (second_size == 0 -> no second) 84dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** 3. load each element (kernel, ramdisk, second) at 85dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** the specified physical address (kernel_addr, etc) 86dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** 4. prepare tags at tag_addr. kernel_args[] is 87dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** appended to the kernel commandline in the tags. 88dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** 5. r0 = 0, r1 = MACHINE_TYPE, r2 = tags_addr 89dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** 6. if second_size != 0: jump to second_addr 90dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** else: jump to kernel_addr 91dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project*/ 92dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 93dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#if 0 94dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projecttypedef struct ptentry ptentry; 95dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 96dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct ptentry { 97dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char name[16]; /* asciiz partition name */ 98dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unsigned start; /* starting block number */ 99dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unsigned length; /* length in blocks */ 100dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unsigned flags; /* set to zero */ 101dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 102dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 103dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* MSM Partition Table ATAG 104dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** 105dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** length: 2 + 7 * n 106dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** atag: 0x4d534d70 107dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project** <ptentry> x n 108dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project*/ 109dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#endif 110dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 111dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#endif 112