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
)) ||
39 (type
== IH_TYPE_KERNEL_NOLOAD
))
45 static int image_check_params(struct mkimage_params
*params
)
47 return ((params
->dflag
&& (params
->fflag
|| params
->lflag
)) ||
48 (params
->fflag
&& (params
->dflag
|| params
->lflag
)) ||
49 (params
->lflag
&& (params
->dflag
|| params
->fflag
)));
52 static int image_verify_header(unsigned char *ptr
, int image_size
,
53 struct mkimage_params
*params
)
56 const unsigned char *data
;
58 image_header_t header
;
59 image_header_t
*hdr
= &header
;
62 * create copy of header so that we can blank out the
63 * checksum field for checking - this can't be done
64 * on the PROT_READ mapped data.
66 memcpy(hdr
, ptr
, sizeof(image_header_t
));
68 if (be32_to_cpu(hdr
->ih_magic
) != IH_MAGIC
) {
70 "%s: Bad Magic Number: \"%s\" is no valid image\n",
71 params
->cmdname
, params
->imagefile
);
72 return -FDT_ERR_BADMAGIC
;
75 data
= (const unsigned char *)hdr
;
76 len
= sizeof(image_header_t
);
78 checksum
= be32_to_cpu(hdr
->ih_hcrc
);
79 hdr
->ih_hcrc
= cpu_to_be32(0); /* clear for re-calculation */
81 if (crc32(0, data
, len
) != checksum
) {
83 "%s: ERROR: \"%s\" has bad header checksum!\n",
84 params
->cmdname
, params
->imagefile
);
85 return -FDT_ERR_BADSTATE
;
88 data
= (const unsigned char *)ptr
+ sizeof(image_header_t
);
89 len
= image_size
- sizeof(image_header_t
) ;
91 checksum
= be32_to_cpu(hdr
->ih_dcrc
);
92 if (crc32(0, data
, len
) != checksum
) {
94 "%s: ERROR: \"%s\" has corrupted data!\n",
95 params
->cmdname
, params
->imagefile
);
96 return -FDT_ERR_BADSTRUCTURE
;
101 static void image_set_header(void *ptr
, struct stat
*sbuf
, int ifd
,
102 struct mkimage_params
*params
)
106 image_header_t
* hdr
= (image_header_t
*)ptr
;
109 (const unsigned char *)(ptr
+
110 sizeof(image_header_t
)),
111 sbuf
->st_size
- sizeof(image_header_t
));
113 /* Build new header */
114 image_set_magic(hdr
, IH_MAGIC
);
115 image_set_time(hdr
, sbuf
->st_mtime
);
116 image_set_size(hdr
, sbuf
->st_size
- sizeof(image_header_t
));
117 image_set_load(hdr
, params
->addr
);
118 image_set_ep(hdr
, params
->ep
);
119 image_set_dcrc(hdr
, checksum
);
120 image_set_os(hdr
, params
->os
);
121 image_set_arch(hdr
, params
->arch
);
122 image_set_type(hdr
, params
->type
);
123 image_set_comp(hdr
, params
->comp
);
125 image_set_name(hdr
, params
->imagename
);
127 checksum
= crc32(0, (const unsigned char *)hdr
,
128 sizeof(image_header_t
));
130 image_set_hcrc(hdr
, checksum
);
134 * Default image type parameters definition
136 static struct image_type_params defimage_params
= {
137 .name
= "Default Image support",
138 .header_size
= sizeof(image_header_t
),
139 .hdr
= (void*)&header
,
140 .check_image_type
= image_check_image_types
,
141 .verify_header
= image_verify_header
,
142 .print_header
= image_print_contents
,
143 .set_header
= image_set_header
,
144 .check_params
= image_check_params
,
147 void init_default_image_type(void)
149 mkimage_register(&defimage_params
);