Merge remote-tracking branch 'u-boot-ti/master'
[glsdk/glsdk-u-boot.git] / tools / omapimage.c
1 /*
2  * (C) Copyright 2010
3  * Linaro LTD, www.linaro.org
4  * Author: John Rigby <john.rigby@linaro.org>
5  * Based on TI's signGP.c
6  *
7  * (C) Copyright 2009
8  * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
9  *
10  * (C) Copyright 2008
11  * Marvell Semiconductor <www.marvell.com>
12  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
13  *
14  * See file CREDITS for list of people who contributed to this
15  * project.
16  *
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.
21  *
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.
26  *
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,
30  * MA 02111-1307 USA
31  */
33 /* Required to obtain the getline prototype from stdio.h */
34 #define _GNU_SOURCE
36 #include "mkimage.h"
37 #include <image.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)
48 {
49         uint32_t result = 0;
50         result  = (data & 0xFF000000) >> 24;
51         result |= (data & 0x00FF0000) >> 8;
52         result |= (data & 0x0000FF00) << 8;
53         result |= (data & 0x000000FF) << 24;
54         return result;
55 }
57 static uint8_t omapimage_header[OMAP_FILE_HDR_SIZE];
59 static int omapimage_check_image_types(uint8_t type)
60 {
61         if (type == IH_TYPE_OMAPIMAGE)
62                 return EXIT_SUCCESS;
63         else {
64                 return EXIT_FAILURE;
65         }
66 }
68 /*
69  * Only the simplest image type is currently supported:
70  * TOC pointing to CHSETTINGS
71  * TOC terminator
72  * CHSETTINGS
73  *
74  * padding to OMAP_CH_HDR_SIZE bytes
75  *
76  * gp header
77  *   size
78  *   load_addr
79  */
80 static int valid_gph_size(uint32_t size)
81 {
82         return size;
83 }
85 static int valid_gph_load_addr(uint32_t load_addr)
86 {
87         return load_addr;
88 }
90 static int omapimage_verify_header(unsigned char *ptr, int image_size,
91                         struct mkimage_params *params)
92 {
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) {
99                 if (do_swap32) {
100                         offset = omapimage_swap32(toc->section_offset);
101                         size = omapimage_swap32(toc->section_size);
102                 } else {
103                         offset = toc->section_offset;
104                         size = toc->section_size;
105                 }
106                 if (!offset || !size)
107                         return -1;
108                 if (offset >= OMAP_CH_HDR_SIZE ||
109                     offset+size >= OMAP_CH_HDR_SIZE)
110                         return -1;
111                 toc++;
112         }
114         if (do_swap32) {
115                 gph_size = omapimage_swap32(gph->size);
116                 gph_load_addr = omapimage_swap32(gph->load_addr);
117         } else {
118                 gph_size = gph->size;
119                 gph_load_addr = gph->load_addr;
120         }
122         if (!valid_gph_size(gph_size))
123                 return -1;
124         if (!valid_gph_load_addr(gph_load_addr))
125                 return -1;
127         return 0;
130 static void omapimage_print_section(struct ch_settings *chs)
132         const char *section_name;
134         if (chs->section_key)
135                 section_name = "CHSETTINGS";
136         else
137                 section_name = "UNKNOWNKEY";
139         printf("%s (%x) "
140                 "valid:%x "
141                 "version:%x "
142                 "reserved:%x "
143                 "flags:%x\n",
144                 section_name,
145                 chs->section_key,
146                 chs->valid,
147                 chs->version,
148                 chs->reserved,
149                 chs->flags);
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) {
161                 if (do_swap32) {
162                         offset = omapimage_swap32(toc->section_offset);
163                         size = omapimage_swap32(toc->section_size);
164                 } else {
165                         offset = toc->section_offset;
166                         size = toc->section_size;
167                 }
169                 if (offset >= OMAP_CH_HDR_SIZE ||
170                     offset+size >= OMAP_CH_HDR_SIZE)
171                         exit(EXIT_FAILURE);
173                 printf("Section %s offset %x length %x\n",
174                         toc->section_name,
175                         toc->section_offset,
176                         toc->section_size);
178                 omapimage_print_section((struct ch_settings *)(ptr+offset));
179                 toc++;
180         }
182         if (do_swap32) {
183                 gph_size = omapimage_swap32(gph->size);
184                 gph_load_addr = omapimage_swap32(gph->load_addr);
185         } else {
186                 gph_size = gph->size;
187                 gph_load_addr = gph->load_addr;
188         }
190         if (!valid_gph_size(gph_size)) {
191                 fprintf(stderr, "Error: invalid image size %x\n", gph_size);
192                 exit(EXIT_FAILURE);
193         }
195         if (!valid_gph_load_addr(gph_load_addr)) {
196                 fprintf(stderr, "Error: invalid image load address %x\n",
197                                 gph_load_addr);
198                 exit(EXIT_FAILURE);
199         }
201         printf("GP Header: Size %x LoadAddr %x\n", gph_size, gph_load_addr);
204 static int toc_offset(void *hdr, void *member)
206         return member - hdr;
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;
222         chs->valid = 0;
223         chs->version = 1;
224         chs->reserved = 0;
225         chs->flags = 0;
227         toc++;
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) {
234                 do_swap32 = 1;
235                 int swapped = 0;
236                 uint32_t *data = (uint32_t *)ptr;
238                 while (swapped <= (sbuf->st_size / sizeof(uint32_t))) {
239                         *data = omapimage_swap32(*data);
240                         swapped++;
241                         data++;
242                 }
243         }
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));
253 /*
254  * omapimage parameters
255  */
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,
265 };
267 void init_omap_image_type(void)
269         mkimage_register(&omapimage_params);