3 * Linaro LTD, www.linaro.org
4 * Author: John Rigby <john.rigby@linaro.org>
5 * Based on TI's signGP.c
8 * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
11 * Marvell Semiconductor <www.marvell.com>
12 * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
14 * See file CREDITS for list of people who contributed to this
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License as
19 * published by the Free Software Foundation; either version 2 of
20 * the License, or (at your option) any later version.
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
33 /* Required to obtain the getline prototype from stdio.h */
38 #include "omapimage.h"
40 /* Header size is CH header rounded up to 512 bytes plus GP header */
41 #define OMAP_CH_HDR_SIZE 512
42 #define OMAP_GP_HDR_SIZE (sizeof(struct gp_header))
43 #define OMAP_FILE_HDR_SIZE (OMAP_CH_HDR_SIZE+OMAP_GP_HDR_SIZE)
45 static int do_swap32
= 0;
47 static uint32_t omapimage_swap32(uint32_t data
)
50 result
= (data
& 0xFF000000) >> 24;
51 result
|= (data
& 0x00FF0000) >> 8;
52 result
|= (data
& 0x0000FF00) << 8;
53 result
|= (data
& 0x000000FF) << 24;
57 static uint8_t omapimage_header
[OMAP_FILE_HDR_SIZE
];
59 static int omapimage_check_image_types(uint8_t type
)
61 if (type
== IH_TYPE_OMAPIMAGE
)
69 * Only the simplest image type is currently supported:
70 * TOC pointing to CHSETTINGS
74 * padding to OMAP_CH_HDR_SIZE bytes
80 static int valid_gph_size(uint32_t size
)
85 static int valid_gph_load_addr(uint32_t load_addr
)
90 static int omapimage_verify_header(unsigned char *ptr
, int image_size
,
91 struct mkimage_params
*params
)
93 struct ch_toc
*toc
= (struct ch_toc
*)ptr
;
94 struct gp_header
*gph
= (struct gp_header
*)(ptr
+OMAP_CH_HDR_SIZE
);
95 uint32_t offset
, size
, gph_size
, gph_load_addr
;
97 while (toc
->section_offset
!= 0xffffffff
98 && toc
->section_size
!= 0xffffffff) {
100 offset
= omapimage_swap32(toc
->section_offset
);
101 size
= omapimage_swap32(toc
->section_size
);
103 offset
= toc
->section_offset
;
104 size
= toc
->section_size
;
106 if (!offset
|| !size
)
108 if (offset
>= OMAP_CH_HDR_SIZE
||
109 offset
+size
>= OMAP_CH_HDR_SIZE
)
115 gph_size
= omapimage_swap32(gph
->size
);
116 gph_load_addr
= omapimage_swap32(gph
->load_addr
);
118 gph_size
= gph
->size
;
119 gph_load_addr
= gph
->load_addr
;
122 if (!valid_gph_size(gph_size
))
124 if (!valid_gph_load_addr(gph_load_addr
))
130 static void omapimage_print_section(struct ch_settings
*chs
)
132 const char *section_name
;
134 if (chs
->section_key
)
135 section_name
= "CHSETTINGS";
137 section_name
= "UNKNOWNKEY";
152 static void omapimage_print_header(const void *ptr
)
154 const struct ch_toc
*toc
= (struct ch_toc
*)ptr
;
155 const struct gp_header
*gph
=
156 (struct gp_header
*)(ptr
+OMAP_CH_HDR_SIZE
);
157 uint32_t offset
, size
, gph_size
, gph_load_addr
;
159 while (toc
->section_offset
!= 0xffffffff
160 && toc
->section_size
!= 0xffffffff) {
162 offset
= omapimage_swap32(toc
->section_offset
);
163 size
= omapimage_swap32(toc
->section_size
);
165 offset
= toc
->section_offset
;
166 size
= toc
->section_size
;
169 if (offset
>= OMAP_CH_HDR_SIZE
||
170 offset
+size
>= OMAP_CH_HDR_SIZE
)
173 printf("Section %s offset %x length %x\n",
178 omapimage_print_section((struct ch_settings
*)(ptr
+offset
));
183 gph_size
= omapimage_swap32(gph
->size
);
184 gph_load_addr
= omapimage_swap32(gph
->load_addr
);
186 gph_size
= gph
->size
;
187 gph_load_addr
= gph
->load_addr
;
190 if (!valid_gph_size(gph_size
)) {
191 fprintf(stderr
, "Error: invalid image size %x\n", gph_size
);
195 if (!valid_gph_load_addr(gph_load_addr
)) {
196 fprintf(stderr
, "Error: invalid image load address %x\n",
201 printf("GP Header: Size %x LoadAddr %x\n", gph_size
, gph_load_addr
);
204 static int toc_offset(void *hdr
, void *member
)
209 static void omapimage_set_header(void *ptr
, struct stat
*sbuf
, int ifd
,
210 struct mkimage_params
*params
)
212 struct ch_toc
*toc
= (struct ch_toc
*)ptr
;
213 struct ch_settings
*chs
= (struct ch_settings
*)
214 (ptr
+ 2 * sizeof(*toc
));
215 struct gp_header
*gph
= (struct gp_header
*)(ptr
+ OMAP_CH_HDR_SIZE
);
217 toc
->section_offset
= toc_offset(ptr
, chs
);
218 toc
->section_size
= sizeof(struct ch_settings
);
219 strcpy((char *)toc
->section_name
, "CHSETTINGS");
221 chs
->section_key
= KEY_CHSETTINGS
;
228 memset(toc
, 0xff, sizeof(*toc
));
230 gph
->size
= sbuf
->st_size
- OMAP_FILE_HDR_SIZE
;
231 gph
->load_addr
= params
->addr
;
233 if (strncmp(params
->imagename
, "byteswap", 8) == 0) {
236 uint32_t *data
= (uint32_t *)ptr
;
238 while (swapped
<= (sbuf
->st_size
/ sizeof(uint32_t))) {
239 *data
= omapimage_swap32(*data
);
246 int omapimage_check_params(struct mkimage_params
*params
)
248 return (params
->dflag
&& (params
->fflag
|| params
->lflag
)) ||
249 (params
->fflag
&& (params
->dflag
|| params
->lflag
)) ||
250 (params
->lflag
&& (params
->dflag
|| params
->fflag
));
254 * omapimage parameters
256 static struct image_type_params omapimage_params
= {
257 .name
= "TI OMAP CH/GP Boot Image support",
258 .header_size
= OMAP_FILE_HDR_SIZE
,
259 .hdr
= (void *)&omapimage_header
,
260 .check_image_type
= omapimage_check_image_types
,
261 .verify_header
= omapimage_verify_header
,
262 .print_header
= omapimage_print_header
,
263 .set_header
= omapimage_set_header
,
264 .check_params
= omapimage_check_params
,
267 void init_omap_image_type(void)
269 mkimage_register(&omapimage_params
);