2 * (C) Copyright 2008 Semihalf
4 * (C) Copyright 2000-2005
7 * See file CREDITS for list of people who contributed to this
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 ********************************************************************
26 * NOTE: This header file defines an interface to U-Boot. Including
27 * this (unmodified) header file in another file is considered normal
28 * use of U-Boot, and does *not* fall under the heading of "derived
30 ********************************************************************
36 #include <asm/byteorder.h>
38 #include <linux/string.h>
42 * Operating System Codes
44 #define IH_OS_INVALID 0 /* Invalid OS */
45 #define IH_OS_OPENBSD 1 /* OpenBSD */
46 #define IH_OS_NETBSD 2 /* NetBSD */
47 #define IH_OS_FREEBSD 3 /* FreeBSD */
48 #define IH_OS_4_4BSD 4 /* 4.4BSD */
49 #define IH_OS_LINUX 5 /* Linux */
50 #define IH_OS_SVR4 6 /* SVR4 */
51 #define IH_OS_ESIX 7 /* Esix */
52 #define IH_OS_SOLARIS 8 /* Solaris */
53 #define IH_OS_IRIX 9 /* Irix */
54 #define IH_OS_SCO 10 /* SCO */
55 #define IH_OS_DELL 11 /* Dell */
56 #define IH_OS_NCR 12 /* NCR */
57 #define IH_OS_LYNXOS 13 /* LynxOS */
58 #define IH_OS_VXWORKS 14 /* VxWorks */
59 #define IH_OS_PSOS 15 /* pSOS */
60 #define IH_OS_QNX 16 /* QNX */
61 #define IH_OS_U_BOOT 17 /* Firmware */
62 #define IH_OS_RTEMS 18 /* RTEMS */
63 #define IH_OS_ARTOS 19 /* ARTOS */
64 #define IH_OS_UNITY 20 /* Unity OS */
67 * CPU Architecture Codes (supported by Linux)
69 #define IH_ARCH_INVALID 0 /* Invalid CPU */
70 #define IH_ARCH_ALPHA 1 /* Alpha */
71 #define IH_ARCH_ARM 2 /* ARM */
72 #define IH_ARCH_I386 3 /* Intel x86 */
73 #define IH_ARCH_IA64 4 /* IA64 */
74 #define IH_ARCH_MIPS 5 /* MIPS */
75 #define IH_ARCH_MIPS64 6 /* MIPS 64 Bit */
76 #define IH_ARCH_PPC 7 /* PowerPC */
77 #define IH_ARCH_S390 8 /* IBM S390 */
78 #define IH_ARCH_SH 9 /* SuperH */
79 #define IH_ARCH_SPARC 10 /* Sparc */
80 #define IH_ARCH_SPARC64 11 /* Sparc 64 Bit */
81 #define IH_ARCH_M68K 12 /* M68K */
82 #define IH_ARCH_NIOS 13 /* Nios-32 */
83 #define IH_ARCH_MICROBLAZE 14 /* MicroBlaze */
84 #define IH_ARCH_NIOS2 15 /* Nios-II */
85 #define IH_ARCH_BLACKFIN 16 /* Blackfin */
86 #define IH_ARCH_AVR32 17 /* AVR32 */
87 #define IH_ARCH_ST200 18 /* STMicroelectronics ST200 */
92 * "Standalone Programs" are directly runnable in the environment
93 * provided by U-Boot; it is expected that (if they behave
94 * well) you can continue to work in U-Boot after return from
95 * the Standalone Program.
96 * "OS Kernel Images" are usually images of some Embedded OS which
97 * will take over control completely. Usually these programs
98 * will install their own set of exception handlers, device
99 * drivers, set up the MMU, etc. - this means, that you cannot
100 * expect to re-enter U-Boot except by resetting the CPU.
101 * "RAMDisk Images" are more or less just data blocks, and their
102 * parameters (address, size) are passed to an OS kernel that is
104 * "Multi-File Images" contain several images, typically an OS
105 * (Linux) kernel image and one or more data images like
106 * RAMDisks. This construct is useful for instance when you want
107 * to boot over the network using BOOTP etc., where the boot
108 * server provides just a single image file, but you want to get
109 * for instance an OS kernel and a RAMDisk image.
111 * "Multi-File Images" start with a list of image sizes, each
112 * image size (in bytes) specified by an "uint32_t" in network
113 * byte order. This list is terminated by an "(uint32_t)0".
114 * Immediately after the terminating 0 follow the images, one by
115 * one, all aligned on "uint32_t" boundaries (size rounded up to
116 * a multiple of 4 bytes - except for the last file).
118 * "Firmware Images" are binary images containing firmware (like
119 * U-Boot or FPGA images) which usually will be programmed to
122 * "Script files" are command sequences that will be executed by
123 * U-Boot's command interpreter; this feature is especially
124 * useful when you configure U-Boot to use a real shell (hush)
125 * as command interpreter (=> Shell Scripts).
128 #define IH_TYPE_INVALID 0 /* Invalid Image */
129 #define IH_TYPE_STANDALONE 1 /* Standalone Program */
130 #define IH_TYPE_KERNEL 2 /* OS Kernel Image */
131 #define IH_TYPE_RAMDISK 3 /* RAMDisk Image */
132 #define IH_TYPE_MULTI 4 /* Multi-File Image */
133 #define IH_TYPE_FIRMWARE 5 /* Firmware Image */
134 #define IH_TYPE_SCRIPT 6 /* Script file */
135 #define IH_TYPE_FILESYSTEM 7 /* Filesystem Image (any type) */
136 #define IH_TYPE_FLATDT 8 /* Binary Flat Device Tree Blob */
141 #define IH_COMP_NONE 0 /* No Compression Used */
142 #define IH_COMP_GZIP 1 /* gzip Compression Used */
143 #define IH_COMP_BZIP2 2 /* bzip2 Compression Used */
145 #define IH_MAGIC 0x27051956 /* Image Magic Number */
146 #define IH_NMLEN 32 /* Image Name Length */
149 * all data in network byte order (aka natural aka bigendian)
152 typedef struct image_header {
153 uint32_t ih_magic; /* Image Header Magic Number */
154 uint32_t ih_hcrc; /* Image Header CRC Checksum */
155 uint32_t ih_time; /* Image Creation Timestamp */
156 uint32_t ih_size; /* Image Data Size */
157 uint32_t ih_load; /* Data Load Address */
158 uint32_t ih_ep; /* Entry Point Address */
159 uint32_t ih_dcrc; /* Image Data CRC Checksum */
160 uint8_t ih_os; /* Operating System */
161 uint8_t ih_arch; /* CPU architecture */
162 uint8_t ih_type; /* Image Type */
163 uint8_t ih_comp; /* Compression Type */
164 uint8_t ih_name[IH_NMLEN]; /* Image Name */
168 * Some systems (for example LWMON) have very short watchdog periods;
169 * we must make sure to split long operations like memmove() or
170 * crc32() into reasonable chunks.
172 #define CHUNKSZ (64 * 1024)
174 #define image_to_cpu(x) ntohl(x)
175 #define cpu_to_image(x) htonl(x)
177 static inline uint32_t image_get_header_size (void)
179 return (sizeof (image_header_t));
182 #define image_get_hdr_l(f) \
183 static inline uint32_t image_get_##f(image_header_t *hdr) \
185 return image_to_cpu (hdr->ih_##f); \
187 image_get_hdr_l (magic);
188 image_get_hdr_l (hcrc);
189 image_get_hdr_l (time);
190 image_get_hdr_l (size);
191 image_get_hdr_l (load);
192 image_get_hdr_l (ep);
193 image_get_hdr_l (dcrc);
195 #define image_get_hdr_b(f) \
196 static inline uint8_t image_get_##f(image_header_t *hdr) \
198 return hdr->ih_##f; \
200 image_get_hdr_b (os);
201 image_get_hdr_b (arch);
202 image_get_hdr_b (type);
203 image_get_hdr_b (comp);
205 static inline char *image_get_name (image_header_t *hdr)
207 return (char *)hdr->ih_name;
210 static inline uint32_t image_get_data_size (image_header_t *hdr)
212 return image_get_size (hdr);
214 static inline uint32_t image_get_image_size (image_header_t *hdr)
216 return (image_get_size (hdr) + image_get_header_size ());
218 static inline ulong image_get_data (image_header_t *hdr)
220 return ((ulong)hdr + image_get_header_size ());
223 #define image_set_hdr_l(f) \
224 static inline void image_set_##f(image_header_t *hdr, uint32_t val) \
226 hdr->ih_##f = cpu_to_image (val); \
228 image_set_hdr_l (magic);
229 image_set_hdr_l (hcrc);
230 image_set_hdr_l (time);
231 image_set_hdr_l (size);
232 image_set_hdr_l (load);
233 image_set_hdr_l (ep);
234 image_set_hdr_l (dcrc);
236 #define image_set_hdr_b(f) \
237 static inline void image_set_##f(image_header_t *hdr, uint8_t val) \
241 image_set_hdr_b (os);
242 image_set_hdr_b (arch);
243 image_set_hdr_b (type);
244 image_set_hdr_b (comp);
246 static inline void image_set_name (image_header_t *hdr, const char *name)
248 strncpy (image_get_name (hdr), name, IH_NMLEN);
251 int image_check_hcrc (image_header_t *hdr);
252 int image_check_dcrc (image_header_t *hdr);
253 int image_check_dcrc_wd (image_header_t *hdr, ulong chunksize);
254 int getenv_verify (void);
256 static inline int image_check_magic (image_header_t *hdr)
258 return (image_get_magic (hdr) == IH_MAGIC);
260 static inline int image_check_type (image_header_t *hdr, uint8_t type)
262 return (image_get_type (hdr) == type);
264 static inline int image_check_arch (image_header_t *hdr, uint8_t arch)
266 return (image_get_arch (hdr) == arch);
268 static inline int image_check_os (image_header_t *hdr, uint8_t os)
270 return (image_get_os (hdr) == os);
274 static inline int image_check_target_arch (image_header_t *hdr)
277 if (!image_check_arch (hdr, IH_ARCH_ARM))
278 #elif defined(__avr32__)
279 if (!image_check_arch (hdr, IH_ARCH_AVR32))
280 #elif defined(__bfin__)
281 if (!image_check_arch (hdr, IH_ARCH_BLACKFIN))
282 #elif defined(__I386__)
283 if (!image_check_arch (hdr, IH_ARCH_I386))
284 #elif defined(__M68K__)
285 if (!image_check_arch (hdr, IH_ARCH_M68K))
286 #elif defined(__microblaze__)
287 if (!image_check_arch (hdr, IH_ARCH_MICROBLAZE))
288 #elif defined(__mips__)
289 if (!image_check_arch (hdr, IH_ARCH_MIPS))
290 #elif defined(__nios__)
291 if (!image_check_arch (hdr, IH_ARCH_NIOS))
292 #elif defined(__nios2__)
293 if (!image_check_arch (hdr, IH_ARCH_NIOS2))
294 #elif defined(__PPC__)
295 if (!image_check_arch (hdr, IH_ARCH_PPC))
296 #elif defined(__sh__)
297 if (!image_check_arch (hdr, IH_ARCH_SH))
299 # error Unknown CPU type
307 #endif /* __IMAGE_H__ */