2 * (C) Copyright 2008 Semihalf
4 * (C) Copyright 2000-2004
5 * DENX Software Engineering
6 * Wolfgang Denk, wd@denx.de
8 * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
9 * default_image specific code abstracted from mkimage.c
10 * some functions added to address abstraction
12 * All rights reserved.
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
32 #include <u-boot/crc.h>
34 static image_header_t header
;
36 static int image_check_image_types (uint8_t type
)
38 if ((type
> IH_TYPE_INVALID
) && (type
< IH_TYPE_FLATDT
))
44 static int image_check_params (struct mkimage_params
*params
)
46 return ((params
->dflag
&& (params
->fflag
|| params
->lflag
)) ||
47 (params
->fflag
&& (params
->dflag
|| params
->lflag
)) ||
48 (params
->lflag
&& (params
->dflag
|| params
->fflag
)));
51 static int image_verify_header (unsigned char *ptr
, int image_size
,
52 struct mkimage_params
*params
)
55 const unsigned char *data
;
57 image_header_t header
;
58 image_header_t
*hdr
= &header
;
61 * create copy of header so that we can blank out the
62 * checksum field for checking - this can't be done
63 * on the PROT_READ mapped data.
65 memcpy (hdr
, ptr
, sizeof(image_header_t
));
67 if (be32_to_cpu(hdr
->ih_magic
) != IH_MAGIC
) {
69 "%s: Bad Magic Number: \"%s\" is no valid image\n",
70 params
->cmdname
, params
->imagefile
);
71 return -FDT_ERR_BADMAGIC
;
74 data
= (const unsigned char *)hdr
;
75 len
= sizeof(image_header_t
);
77 checksum
= be32_to_cpu(hdr
->ih_hcrc
);
78 hdr
->ih_hcrc
= cpu_to_be32(0); /* clear for re-calculation */
80 if (crc32 (0, data
, len
) != checksum
) {
82 "%s: ERROR: \"%s\" has bad header checksum!\n",
83 params
->cmdname
, params
->imagefile
);
84 return -FDT_ERR_BADSTATE
;
87 data
= (const unsigned char *)ptr
+ sizeof(image_header_t
);
88 len
= image_size
- sizeof(image_header_t
) ;
90 checksum
= be32_to_cpu(hdr
->ih_dcrc
);
91 if (crc32 (0, data
, len
) != checksum
) {
93 "%s: ERROR: \"%s\" has corrupted data!\n",
94 params
->cmdname
, params
->imagefile
);
95 return -FDT_ERR_BADSTRUCTURE
;
100 static void image_set_header (void *ptr
, struct stat
*sbuf
, int ifd
,
101 struct mkimage_params
*params
)
105 image_header_t
* hdr
= (image_header_t
*)ptr
;
108 (const unsigned char *)(ptr
+
109 sizeof(image_header_t
)),
110 sbuf
->st_size
- sizeof(image_header_t
));
112 /* Build new header */
113 image_set_magic (hdr
, IH_MAGIC
);
114 image_set_time (hdr
, sbuf
->st_mtime
);
115 image_set_size (hdr
, sbuf
->st_size
- sizeof(image_header_t
));
116 image_set_load (hdr
, params
->addr
);
117 image_set_ep (hdr
, params
->ep
);
118 image_set_dcrc (hdr
, checksum
);
119 image_set_os (hdr
, params
->os
);
120 image_set_arch (hdr
, params
->arch
);
121 image_set_type (hdr
, params
->type
);
122 image_set_comp (hdr
, params
->comp
);
124 image_set_name (hdr
, params
->imagename
);
126 checksum
= crc32 (0, (const unsigned char *)hdr
,
127 sizeof(image_header_t
));
129 image_set_hcrc (hdr
, checksum
);
133 * Default image type parameters definition
135 static struct image_type_params defimage_params
= {
136 .name
= "Default Image support",
137 .header_size
= sizeof(image_header_t
),
138 .hdr
= (void*)&header
,
139 .check_image_type
= image_check_image_types
,
140 .verify_header
= image_verify_header
,
141 .print_header
= image_print_contents
,
142 .set_header
= image_set_header
,
143 .check_params
= image_check_params
,
146 void init_default_image_type (void)
148 mkimage_register (&defimage_params
);