blob: d242cca3a8a0f9ec5279ed4cd94b9dba1b261ba4 [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
Tom Rini79b9ebb2012-10-16 13:06:06 +000045static int do_swap32 = 0;
46
47static 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}
56
John Rigby3decb142011-07-21 09:10:30 -040057static uint8_t omapimage_header[OMAP_FILE_HDR_SIZE];
58
59static int omapimage_check_image_types(uint8_t type)
60{
61 if (type == IH_TYPE_OMAPIMAGE)
62 return EXIT_SUCCESS;
63 else {
John Rigby3decb142011-07-21 09:10:30 -040064 return EXIT_FAILURE;
65 }
66}
67
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 */
80static int valid_gph_size(uint32_t size)
81{
82 return size;
83}
84
85static int valid_gph_load_addr(uint32_t load_addr)
86{
87 return load_addr;
88}
89
90static 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);
Tom Rini79b9ebb2012-10-16 13:06:06 +000095 uint32_t offset, size, gph_size, gph_load_addr;
John Rigby3decb142011-07-21 09:10:30 -040096
97 while (toc->section_offset != 0xffffffff
98 && toc->section_size != 0xffffffff) {
Tom Rini79b9ebb2012-10-16 13:06:06 +000099 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 }
John Rigby3decb142011-07-21 09:10:30 -0400106 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 }
Tom Rini79b9ebb2012-10-16 13:06:06 +0000113
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 }
121
122 if (!valid_gph_size(gph_size))
John Rigby3decb142011-07-21 09:10:30 -0400123 return -1;
Tom Rini79b9ebb2012-10-16 13:06:06 +0000124 if (!valid_gph_load_addr(gph_load_addr))
John Rigby3decb142011-07-21 09:10:30 -0400125 return -1;
126
127 return 0;
128}
129
130static void omapimage_print_section(struct ch_settings *chs)
131{
132 const char *section_name;
133
134 if (chs->section_key)
135 section_name = "CHSETTINGS";
136 else
137 section_name = "UNKNOWNKEY";
138
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);
150}
151
152static void omapimage_print_header(const void *ptr)
153{
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);
Tom Rini79b9ebb2012-10-16 13:06:06 +0000157 uint32_t offset, size, gph_size, gph_load_addr;
John Rigby3decb142011-07-21 09:10:30 -0400158
159 while (toc->section_offset != 0xffffffff
160 && toc->section_size != 0xffffffff) {
Tom Rini79b9ebb2012-10-16 13:06:06 +0000161 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 }
John Rigby3decb142011-07-21 09:10:30 -0400168
169 if (offset >= OMAP_CH_HDR_SIZE ||
170 offset+size >= OMAP_CH_HDR_SIZE)
171 exit(EXIT_FAILURE);
172
173 printf("Section %s offset %x length %x\n",
174 toc->section_name,
175 toc->section_offset,
176 toc->section_size);
177
178 omapimage_print_section((struct ch_settings *)(ptr+offset));
179 toc++;
180 }
181
Tom Rini79b9ebb2012-10-16 13:06:06 +0000182 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 }
189
190 if (!valid_gph_size(gph_size)) {
191 fprintf(stderr, "Error: invalid image size %x\n", gph_size);
John Rigby3decb142011-07-21 09:10:30 -0400192 exit(EXIT_FAILURE);
193 }
194
Tom Rini79b9ebb2012-10-16 13:06:06 +0000195 if (!valid_gph_load_addr(gph_load_addr)) {
196 fprintf(stderr, "Error: invalid image load address %x\n",
197 gph_load_addr);
John Rigby3decb142011-07-21 09:10:30 -0400198 exit(EXIT_FAILURE);
199 }
200
Tom Rini79b9ebb2012-10-16 13:06:06 +0000201 printf("GP Header: Size %x LoadAddr %x\n", gph_size, gph_load_addr);
John Rigby3decb142011-07-21 09:10:30 -0400202}
203
204static int toc_offset(void *hdr, void *member)
205{
206 return member - hdr;
207}
208
209static void omapimage_set_header(void *ptr, struct stat *sbuf, int ifd,
210 struct mkimage_params *params)
211{
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);
216
217 toc->section_offset = toc_offset(ptr, chs);
218 toc->section_size = sizeof(struct ch_settings);
219 strcpy((char *)toc->section_name, "CHSETTINGS");
220
221 chs->section_key = KEY_CHSETTINGS;
222 chs->valid = 0;
223 chs->version = 1;
224 chs->reserved = 0;
225 chs->flags = 0;
226
227 toc++;
228 memset(toc, 0xff, sizeof(*toc));
229
230 gph->size = sbuf->st_size - OMAP_FILE_HDR_SIZE;
231 gph->load_addr = params->addr;
Tom Rini79b9ebb2012-10-16 13:06:06 +0000232
233 if (strncmp(params->imagename, "byteswap", 8) == 0) {
234 do_swap32 = 1;
235 int swapped = 0;
236 uint32_t *data = (uint32_t *)ptr;
237
238 while (swapped <= (sbuf->st_size / sizeof(uint32_t))) {
239 *data = omapimage_swap32(*data);
240 swapped++;
241 data++;
242 }
243 }
John Rigby3decb142011-07-21 09:10:30 -0400244}
245
246int omapimage_check_params(struct mkimage_params *params)
247{
248 return (params->dflag && (params->fflag || params->lflag)) ||
249 (params->fflag && (params->dflag || params->lflag)) ||
250 (params->lflag && (params->dflag || params->fflag));
251}
252
253/*
254 * omapimage parameters
255 */
256static 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};
266
267void init_omap_image_type(void)
268{
269 mkimage_register(&omapimage_params);
270}