blob: 5e739ac64758e0f13465f0b29f91d13822c4f6b5 [file] [log] [blame]
John Rigby3decb142011-07-21 09:10:30 -04001/*
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 */
32
33/* Required to obtain the getline prototype from stdio.h */
34#define _GNU_SOURCE
35
36#include "mkimage.h"
37#include <image.h>
38#include "omapimage.h"
39
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)
44
45static uint8_t omapimage_header[OMAP_FILE_HDR_SIZE];
46
47static int omapimage_check_image_types(uint8_t type)
48{
49 if (type == IH_TYPE_OMAPIMAGE)
50 return EXIT_SUCCESS;
51 else {
John Rigby3decb142011-07-21 09:10:30 -040052 return EXIT_FAILURE;
53 }
54}
55
56/*
57 * Only the simplest image type is currently supported:
58 * TOC pointing to CHSETTINGS
59 * TOC terminator
60 * CHSETTINGS
61 *
62 * padding to OMAP_CH_HDR_SIZE bytes
63 *
64 * gp header
65 * size
66 * load_addr
67 */
68static int valid_gph_size(uint32_t size)
69{
70 return size;
71}
72
73static int valid_gph_load_addr(uint32_t load_addr)
74{
75 return load_addr;
76}
77
78static int omapimage_verify_header(unsigned char *ptr, int image_size,
79 struct mkimage_params *params)
80{
81 struct ch_toc *toc = (struct ch_toc *)ptr;
82 struct gp_header *gph = (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE);
83 uint32_t offset, size;
84
85 while (toc->section_offset != 0xffffffff
86 && toc->section_size != 0xffffffff) {
87 offset = toc->section_offset;
88 size = toc->section_size;
89 if (!offset || !size)
90 return -1;
91 if (offset >= OMAP_CH_HDR_SIZE ||
92 offset+size >= OMAP_CH_HDR_SIZE)
93 return -1;
94 toc++;
95 }
96 if (!valid_gph_size(gph->size))
97 return -1;
98 if (!valid_gph_load_addr(gph->load_addr))
99 return -1;
100
101 return 0;
102}
103
104static void omapimage_print_section(struct ch_settings *chs)
105{
106 const char *section_name;
107
108 if (chs->section_key)
109 section_name = "CHSETTINGS";
110 else
111 section_name = "UNKNOWNKEY";
112
113 printf("%s (%x) "
114 "valid:%x "
115 "version:%x "
116 "reserved:%x "
117 "flags:%x\n",
118 section_name,
119 chs->section_key,
120 chs->valid,
121 chs->version,
122 chs->reserved,
123 chs->flags);
124}
125
126static void omapimage_print_header(const void *ptr)
127{
128 const struct ch_toc *toc = (struct ch_toc *)ptr;
129 const struct gp_header *gph =
130 (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE);
131 uint32_t offset, size;
132
133 while (toc->section_offset != 0xffffffff
134 && toc->section_size != 0xffffffff) {
135 offset = toc->section_offset;
136 size = toc->section_size;
137
138 if (offset >= OMAP_CH_HDR_SIZE ||
139 offset+size >= OMAP_CH_HDR_SIZE)
140 exit(EXIT_FAILURE);
141
142 printf("Section %s offset %x length %x\n",
143 toc->section_name,
144 toc->section_offset,
145 toc->section_size);
146
147 omapimage_print_section((struct ch_settings *)(ptr+offset));
148 toc++;
149 }
150
151 if (!valid_gph_size(gph->size)) {
152 fprintf(stderr,
153 "Error: invalid image size %x\n",
154 gph->size);
155 exit(EXIT_FAILURE);
156 }
157
158 if (!valid_gph_load_addr(gph->load_addr)) {
159 fprintf(stderr,
160 "Error: invalid image load address %x\n",
161 gph->size);
162 exit(EXIT_FAILURE);
163 }
164
165 printf("GP Header: Size %x LoadAddr %x\n",
166 gph->size, gph->load_addr);
167}
168
169static int toc_offset(void *hdr, void *member)
170{
171 return member - hdr;
172}
173
174static void omapimage_set_header(void *ptr, struct stat *sbuf, int ifd,
175 struct mkimage_params *params)
176{
177 struct ch_toc *toc = (struct ch_toc *)ptr;
178 struct ch_settings *chs = (struct ch_settings *)
179 (ptr + 2 * sizeof(*toc));
180 struct gp_header *gph = (struct gp_header *)(ptr + OMAP_CH_HDR_SIZE);
181
182 toc->section_offset = toc_offset(ptr, chs);
183 toc->section_size = sizeof(struct ch_settings);
184 strcpy((char *)toc->section_name, "CHSETTINGS");
185
186 chs->section_key = KEY_CHSETTINGS;
187 chs->valid = 0;
188 chs->version = 1;
189 chs->reserved = 0;
190 chs->flags = 0;
191
192 toc++;
193 memset(toc, 0xff, sizeof(*toc));
194
195 gph->size = sbuf->st_size - OMAP_FILE_HDR_SIZE;
196 gph->load_addr = params->addr;
197}
198
199int omapimage_check_params(struct mkimage_params *params)
200{
201 return (params->dflag && (params->fflag || params->lflag)) ||
202 (params->fflag && (params->dflag || params->lflag)) ||
203 (params->lflag && (params->dflag || params->fflag));
204}
205
206/*
207 * omapimage parameters
208 */
209static struct image_type_params omapimage_params = {
210 .name = "TI OMAP CH/GP Boot Image support",
211 .header_size = OMAP_FILE_HDR_SIZE,
212 .hdr = (void *)&omapimage_header,
213 .check_image_type = omapimage_check_image_types,
214 .verify_header = omapimage_verify_header,
215 .print_header = omapimage_print_header,
216 .set_header = omapimage_set_header,
217 .check_params = omapimage_check_params,
218};
219
220void init_omap_image_type(void)
221{
222 mkimage_register(&omapimage_params);
223}