2 * (C) Copyright 2008 Semihalf
4 * (C) Copyright 2000-2006
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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,
27 # include <watchdog.h>
34 unsigned long crc32 (unsigned long, const unsigned char *, unsigned int);
36 int image_check_hcrc (image_header_t *hdr)
39 ulong len = image_get_header_size ();
40 image_header_t header;
42 /* Copy header so we can blank CRC field for re-calculation */
43 memmove (&header, (char *)hdr, image_get_header_size ());
44 image_set_hcrc (&header, 0);
46 hcrc = crc32 (0, (unsigned char *)&header, len);
48 return (hcrc == image_get_hcrc (hdr));
51 int image_check_dcrc (image_header_t *hdr)
53 ulong data = image_get_data (hdr);
54 ulong len = image_get_data_size (hdr);
55 ulong dcrc = crc32 (0, (unsigned char *)data, len);
57 return (dcrc == image_get_dcrc (hdr));
61 int image_check_dcrc_wd (image_header_t *hdr, ulong chunksz)
64 ulong len = image_get_data_size (hdr);
65 ulong data = image_get_data (hdr);
67 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
69 ulong edata = cdata + len;
71 while (cdata < edata) {
72 ulong chunk = edata - cdata;
76 dcrc = crc32 (dcrc, (unsigned char *)cdata, chunk);
82 dcrc = crc32 (0, (unsigned char *)data, len);
85 return (dcrc == image_get_dcrc (hdr));
88 int getenv_verify (void)
90 char *s = getenv ("verify");
91 return (s && (*s == 'n')) ? 0 : 1;
94 void memmove_wd (void *to, void *from, size_t len, ulong chunksz)
96 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
98 size_t tail = (len > chunksz) ? chunksz : len;
100 memmove (to, from, tail);
105 #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
106 memmove (to, from, len);
107 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
109 #endif /* USE_HOSTCC */
112 * image_multi_count - get component (sub-image) count
113 * @hdr: pointer to the header of the multi component image
115 * image_multi_count() returns number of components in a multi
118 * Note: no checking of the image type is done, caller must pass
119 * a valid multi component image.
122 * number of components
124 ulong image_multi_count (image_header_t *hdr)
129 /* get start of the image payload, which in case of multi
130 * component images that points to a table of component sizes */
131 size = (ulong *)image_get_data (hdr);
133 /* count non empty slots */
134 for (i = 0; size[i]; ++i)
141 * image_multi_getimg - get component data address and size
142 * @hdr: pointer to the header of the multi component image
143 * @idx: index of the requested component
144 * @data: pointer to a ulong variable, will hold component data address
145 * @len: pointer to a ulong variable, will hold component size
147 * image_multi_getimg() returns size and data address for the requested
148 * component in a multi component image.
150 * Note: no checking of the image type is done, caller must pass
151 * a valid multi component image.
154 * data address and size of the component, if idx is valid
155 * 0 in data and len, if idx is out of range
157 void image_multi_getimg (image_header_t *hdr, ulong idx,
158 ulong *data, ulong *len)
162 ulong offset, tail, count, img_data;
164 /* get number of component */
165 count = image_multi_count (hdr);
167 /* get start of the image payload, which in case of multi
168 * component images that points to a table of component sizes */
169 size = (ulong *)image_get_data (hdr);
171 /* get address of the proper component data start, which means
172 * skipping sizes table (add 1 for last, null entry) */
173 img_data = image_get_data (hdr) + (count + 1) * sizeof (ulong);
180 /* go over all indices preceding requested component idx */
181 for (i = 0; i < idx; i++) {
182 /* add up i-th component size */
185 /* add up alignment for i-th component */
186 tail += (4 - size[i] % 4);
189 /* calculate idx-th component data address */
190 *data = img_data + offset + tail;
198 const char* image_get_os_name (uint8_t os)
203 case IH_OS_INVALID: name = "Invalid OS"; break;
204 case IH_OS_NETBSD: name = "NetBSD"; break;
205 case IH_OS_LINUX: name = "Linux"; break;
206 case IH_OS_VXWORKS: name = "VxWorks"; break;
207 case IH_OS_QNX: name = "QNX"; break;
208 case IH_OS_U_BOOT: name = "U-Boot"; break;
209 case IH_OS_RTEMS: name = "RTEMS"; break;
211 case IH_OS_ARTOS: name = "ARTOS"; break;
213 #ifdef CONFIG_LYNXKDI
214 case IH_OS_LYNXOS: name = "LynxOS"; break;
216 default: name = "Unknown OS"; break;
222 const char* image_get_arch_name (uint8_t arch)
227 case IH_ARCH_INVALID: name = "Invalid Architecture"; break;
228 case IH_ARCH_ALPHA: name = "Alpha"; break;
229 case IH_ARCH_ARM: name = "ARM"; break;
230 case IH_ARCH_AVR32: name = "AVR32"; break;
231 case IH_ARCH_BLACKFIN: name = "Blackfin"; break;
232 case IH_ARCH_I386: name = "Intel x86"; break;
233 case IH_ARCH_IA64: name = "IA64"; break;
234 case IH_ARCH_M68K: name = "M68K"; break;
235 case IH_ARCH_MICROBLAZE:name = "Microblaze"; break;
236 case IH_ARCH_MIPS64: name = "MIPS 64 Bit"; break;
237 case IH_ARCH_MIPS: name = "MIPS"; break;
238 case IH_ARCH_NIOS2: name = "Nios-II"; break;
239 case IH_ARCH_NIOS: name = "Nios"; break;
240 case IH_ARCH_PPC: name = "PowerPC"; break;
241 case IH_ARCH_S390: name = "IBM S390"; break;
242 case IH_ARCH_SH: name = "SuperH"; break;
243 case IH_ARCH_SPARC64: name = "SPARC 64 Bit"; break;
244 case IH_ARCH_SPARC: name = "SPARC"; break;
245 default: name = "Unknown Architecture"; break;
251 const char* image_get_type_name (uint8_t type)
256 case IH_TYPE_INVALID: name = "Invalid Image"; break;
257 case IH_TYPE_STANDALONE:name = "Standalone Program"; break;
258 case IH_TYPE_KERNEL: name = "Kernel Image"; break;
259 case IH_TYPE_RAMDISK: name = "RAMDisk Image"; break;
260 case IH_TYPE_MULTI: name = "Multi-File Image"; break;
261 case IH_TYPE_FIRMWARE: name = "Firmware"; break;
262 case IH_TYPE_SCRIPT: name = "Script"; break;
263 case IH_TYPE_FLATDT: name = "Flat Device Tree"; break;
264 default: name = "Unknown Image"; break;
270 const char* image_get_comp_name (uint8_t comp)
275 case IH_COMP_NONE: name = "uncompressed"; break;
276 case IH_COMP_GZIP: name = "gzip compressed"; break;
277 case IH_COMP_BZIP2: name = "bzip2 compressed"; break;
278 default: name = "unknown compression"; break;