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3decb14a JR |
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 | */ | |
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 | ||
79b9ebb7 TR |
45 | static int do_swap32 = 0; |
46 | ||
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 | } | |
56 | ||
3decb14a JR |
57 | static uint8_t omapimage_header[OMAP_FILE_HDR_SIZE]; |
58 | ||
59 | static int omapimage_check_image_types(uint8_t type) | |
60 | { | |
61 | if (type == IH_TYPE_OMAPIMAGE) | |
62 | return EXIT_SUCCESS; | |
63 | else { | |
3decb14a JR |
64 | 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 | */ | |
80 | static int valid_gph_size(uint32_t size) | |
81 | { | |
82 | return size; | |
83 | } | |
84 | ||
85 | static int valid_gph_load_addr(uint32_t load_addr) | |
86 | { | |
87 | return load_addr; | |
88 | } | |
89 | ||
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); | |
79b9ebb7 | 95 | uint32_t offset, size, gph_size, gph_load_addr; |
3decb14a JR |
96 | |
97 | while (toc->section_offset != 0xffffffff | |
98 | && toc->section_size != 0xffffffff) { | |
79b9ebb7 TR |
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 | } | |
3decb14a JR |
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 | } | |
79b9ebb7 TR |
113 | |
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)) | |
3decb14a | 123 | return -1; |
79b9ebb7 | 124 | if (!valid_gph_load_addr(gph_load_addr)) |
3decb14a JR |
125 | return -1; |
126 | ||
127 | return 0; | |
128 | } | |
129 | ||
130 | static 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 | ||
152 | static 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); | |
79b9ebb7 | 157 | uint32_t offset, size, gph_size, gph_load_addr; |
3decb14a JR |
158 | |
159 | while (toc->section_offset != 0xffffffff | |
160 | && toc->section_size != 0xffffffff) { | |
79b9ebb7 TR |
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 | } | |
3decb14a JR |
168 | |
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 | ||
79b9ebb7 TR |
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 | } | |
189 | ||
190 | if (!valid_gph_size(gph_size)) { | |
191 | fprintf(stderr, "Error: invalid image size %x\n", gph_size); | |
3decb14a JR |
192 | exit(EXIT_FAILURE); |
193 | } | |
194 | ||
79b9ebb7 TR |
195 | if (!valid_gph_load_addr(gph_load_addr)) { |
196 | fprintf(stderr, "Error: invalid image load address %x\n", | |
197 | gph_load_addr); | |
3decb14a JR |
198 | exit(EXIT_FAILURE); |
199 | } | |
200 | ||
79b9ebb7 | 201 | printf("GP Header: Size %x LoadAddr %x\n", gph_size, gph_load_addr); |
3decb14a JR |
202 | } |
203 | ||
204 | static int toc_offset(void *hdr, void *member) | |
205 | { | |
206 | return member - hdr; | |
207 | } | |
208 | ||
209 | static 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; | |
79b9ebb7 TR |
232 | |
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 | } | |
3decb14a JR |
244 | } |
245 | ||
246 | int 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 | */ | |
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 | }; | |
266 | ||
267 | void init_omap_image_type(void) | |
268 | { | |
269 | mkimage_register(&omapimage_params); | |
270 | } |