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1 | /* |
2 | * (C) Copyright 2000 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License as | |
10 | * published by the Free Software Foundation; either version 2 of | |
11 | * the License, or (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | #ifndef __IMAGE_H__ | |
25 | #define __IMAGE_H__ | |
26 | ||
27 | /* | |
28 | * Operating System Codes | |
29 | */ | |
30 | #define IH_OS_INVALID 0 /* Invalid OS */ | |
31 | #define IH_OS_OPENBSD 1 /* OpenBSD */ | |
32 | #define IH_OS_NETBSD 2 /* NetBSD */ | |
33 | #define IH_OS_FREEBSD 3 /* FreeBSD */ | |
34 | #define IH_OS_4_4BSD 4 /* 4.4BSD */ | |
35 | #define IH_OS_LINUX 5 /* Linux */ | |
36 | #define IH_OS_SVR4 6 /* SVR4 */ | |
37 | #define IH_OS_ESIX 7 /* Esix */ | |
38 | #define IH_OS_SOLARIS 8 /* Solaris */ | |
39 | #define IH_OS_IRIX 9 /* Irix */ | |
40 | #define IH_OS_SCO 10 /* SCO */ | |
41 | #define IH_OS_DELL 11 /* Dell */ | |
42 | #define IH_OS_NCR 12 /* NCR */ | |
43 | #define IH_OS_LYNXOS 13 /* LynxOS */ | |
44 | #define IH_OS_VXWORKS 14 /* VxWorks */ | |
45 | #define IH_OS_PSOS 15 /* pSOS */ | |
46 | #define IH_OS_QNX 16 /* QNX */ | |
47 | #define IH_OS_U_BOOT 17 /* Firmware */ | |
d791b1dc | 48 | #define IH_OS_RTEMS 18 /* RTEMS */ |
7f70e853 | 49 | #define IH_OS_ARTOS 19 /* ARTOS */ |
27b207fd | 50 | #define IH_OS_UNITY 20 /* Unity OS */ |
5b1d7137 WD |
51 | |
52 | /* | |
53 | * CPU Architecture Codes (supported by Linux) | |
54 | */ | |
55 | #define IH_CPU_INVALID 0 /* Invalid CPU */ | |
56 | #define IH_CPU_ALPHA 1 /* Alpha */ | |
57 | #define IH_CPU_ARM 2 /* ARM */ | |
58 | #define IH_CPU_I386 3 /* Intel x86 */ | |
59 | #define IH_CPU_IA64 4 /* IA64 */ | |
60 | #define IH_CPU_MIPS 5 /* MIPS */ | |
61 | #define IH_CPU_MIPS64 6 /* MIPS 64 Bit */ | |
62 | #define IH_CPU_PPC 7 /* PowerPC */ | |
63 | #define IH_CPU_S390 8 /* IBM S390 */ | |
64 | #define IH_CPU_SH 9 /* SuperH */ | |
65 | #define IH_CPU_SPARC 10 /* Sparc */ | |
66 | #define IH_CPU_SPARC64 11 /* Sparc 64 Bit */ | |
8564acf9 | 67 | #define IH_CPU_M68K 12 /* M68K */ |
5b1d7137 WD |
68 | |
69 | /* | |
70 | * Image Types | |
71 | * | |
72 | * "Standalone Programs" are directly runnable in the environment | |
73 | * provided by U-Boot; it is expected that (if they behave | |
74 | * well) you can continue to work in U-Boot after return from | |
75 | * the Standalone Program. | |
76 | * "OS Kernel Images" are usually images of some Embedded OS which | |
77 | * will take over control completely. Usually these programs | |
78 | * will install their own set of exception handlers, device | |
79 | * drivers, set up the MMU, etc. - this means, that you cannot | |
80 | * expect to re-enter U-Boot except by resetting the CPU. | |
81 | * "RAMDisk Images" are more or less just data blocks, and their | |
82 | * parameters (address, size) are passed to an OS kernel that is | |
83 | * being started. | |
84 | * "Multi-File Images" contain several images, typically an OS | |
85 | * (Linux) kernel image and one or more data images like | |
86 | * RAMDisks. This construct is useful for instance when you want | |
87 | * to boot over the network using BOOTP etc., where the boot | |
88 | * server provides just a single image file, but you want to get | |
89 | * for instance an OS kernel and a RAMDisk image. | |
90 | * | |
91 | * "Multi-File Images" start with a list of image sizes, each | |
92 | * image size (in bytes) specified by an "uint32_t" in network | |
93 | * byte order. This list is terminated by an "(uint32_t)0". | |
94 | * Immediately after the terminating 0 follow the images, one by | |
95 | * one, all aligned on "uint32_t" boundaries (size rounded up to | |
96 | * a multiple of 4 bytes). | |
97 | * | |
98 | * "Firmware Images" are binary images containing firmware (like | |
99 | * U-Boot or FPGA images) which usually will be programmed to | |
100 | * flash memory. | |
101 | * | |
102 | * "Script files" are command sequences that will be executed by | |
103 | * U-Boot's command interpreter; this feature is especially | |
104 | * useful when you configure U-Boot to use a real shell (hush) | |
27b207fd | 105 | * as command interpreter (=> Shell Scripts). |
5b1d7137 WD |
106 | */ |
107 | ||
108 | #define IH_TYPE_INVALID 0 /* Invalid Image */ | |
109 | #define IH_TYPE_STANDALONE 1 /* Standalone Program */ | |
110 | #define IH_TYPE_KERNEL 2 /* OS Kernel Image */ | |
111 | #define IH_TYPE_RAMDISK 3 /* RAMDisk Image */ | |
112 | #define IH_TYPE_MULTI 4 /* Multi-File Image */ | |
113 | #define IH_TYPE_FIRMWARE 5 /* Firmware Image */ | |
114 | #define IH_TYPE_SCRIPT 6 /* Script file */ | |
115 | ||
116 | /* | |
117 | * Compression Types | |
118 | */ | |
119 | #define IH_COMP_NONE 0 /* No Compression Used */ | |
120 | #define IH_COMP_GZIP 1 /* gzip Compression Used */ | |
121 | #define IH_COMP_BZIP2 2 /* bzip2 Compression Used */ | |
122 | ||
123 | #define IH_MAGIC 0x27051956 /* Image Magic Number */ | |
124 | #define IH_NMLEN 32 /* Image Name Length */ | |
125 | ||
126 | #ifdef __CYGWIN__ | |
127 | typedef unsigned long uint32_t; | |
128 | typedef unsigned char uint8_t; | |
129 | #endif /* __CYGWIN__ */ | |
130 | ||
131 | /* | |
132 | * all data in network byte order (aka natural aka bigendian) | |
133 | */ | |
134 | ||
135 | typedef struct image_header { | |
136 | uint32_t ih_magic; /* Image Header Magic Number */ | |
137 | uint32_t ih_hcrc; /* Image Header CRC Checksum */ | |
138 | uint32_t ih_time; /* Image Creation Timestamp */ | |
139 | uint32_t ih_size; /* Image Data Size */ | |
140 | uint32_t ih_load; /* Data Load Address */ | |
141 | uint32_t ih_ep; /* Entry Point Address */ | |
142 | uint32_t ih_dcrc; /* Image Data CRC Checksum */ | |
143 | uint8_t ih_os; /* Operating System */ | |
144 | uint8_t ih_arch; /* CPU architecture */ | |
145 | uint8_t ih_type; /* Image Type */ | |
146 | uint8_t ih_comp; /* Compression Type */ | |
147 | uint8_t ih_name[IH_NMLEN]; /* Image Name */ | |
148 | } image_header_t; | |
149 | ||
150 | ||
151 | #endif /* __IMAGE_H__ */ |