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8edcde5e SB |
1 | /* |
2 | * (C) Copyright 2009 | |
3 | * Stefano Babic, DENX Software Engineering, [email protected]. | |
4 | * | |
5 | * (C) Copyright 2008 | |
6 | * Marvell Semiconductor <www.marvell.com> | |
7 | * Written-by: Prafulla Wadaskar <[email protected]> | |
8 | * | |
9 | * See file CREDITS for list of people who contributed to this | |
10 | * project. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
25 | * MA 02111-1307 USA | |
26 | */ | |
27 | ||
249d4dec KG |
28 | /* Required to obtain the getline prototype from stdio.h */ |
29 | #define _GNU_SOURCE | |
30 | ||
8edcde5e SB |
31 | #include "mkimage.h" |
32 | #include <image.h> | |
33 | #include "imximage.h" | |
34 | ||
35 | /* | |
36 | * Supported commands for configuration file | |
37 | */ | |
38 | static table_entry_t imximage_cmds[] = { | |
39 | {CMD_BOOT_FROM, "BOOT_FROM", "boot comand", }, | |
40 | {CMD_DATA, "DATA", "Reg Write Data", }, | |
41 | {-1, "", "", }, | |
42 | }; | |
43 | ||
44 | /* | |
45 | * Supported Boot options for configuration file | |
46 | * this is needed to set the correct flash offset | |
47 | */ | |
48 | static table_entry_t imximage_bootops[] = { | |
49 | {FLASH_OFFSET_SPI, "spi", "SPI Flash", }, | |
50 | {FLASH_OFFSET_NAND, "nand", "NAND Flash", }, | |
51 | {FLASH_OFFSET_SD, "sd", "SD Card", }, | |
52 | {FLASH_OFFSET_ONENAND, "onenand", "OneNAND Flash",}, | |
53 | {-1, "", "Invalid", }, | |
54 | }; | |
55 | ||
56 | ||
57 | static struct imx_header imximage_header; | |
58 | ||
59 | static uint32_t get_cfg_value(char *token, char *name, int linenr) | |
60 | { | |
61 | char *endptr; | |
62 | uint32_t value; | |
63 | ||
64 | errno = 0; | |
65 | value = strtoul(token, &endptr, 16); | |
66 | if (errno || (token == endptr)) { | |
67 | fprintf(stderr, "Error: %s[%d] - Invalid hex data(%s)\n", | |
68 | name, linenr, token); | |
69 | exit(EXIT_FAILURE); | |
70 | } | |
71 | return value; | |
72 | } | |
73 | ||
74 | static int imximage_check_image_types(uint8_t type) | |
75 | { | |
76 | if (type == IH_TYPE_IMXIMAGE) | |
77 | return EXIT_SUCCESS; | |
78 | else | |
79 | return EXIT_FAILURE; | |
80 | } | |
81 | ||
82 | static int imximage_verify_header(unsigned char *ptr, int image_size, | |
83 | struct mkimage_params *params) | |
84 | { | |
85 | ||
86 | struct imx_header *imx_hdr = (struct imx_header *) ptr; | |
87 | flash_header_t *hdr = &imx_hdr->fhdr; | |
88 | ||
89 | /* Only a few checks can be done: search for magic numbers */ | |
90 | if (hdr->app_code_barker != APP_CODE_BARKER) | |
91 | return -FDT_ERR_BADSTRUCTURE; | |
92 | ||
93 | if (imx_hdr->dcd_table.preamble.barker != DCD_BARKER) | |
94 | return -FDT_ERR_BADSTRUCTURE; | |
95 | ||
96 | return 0; | |
97 | } | |
98 | ||
99 | static void imximage_print_header(const void *ptr) | |
100 | { | |
101 | struct imx_header *imx_hdr = (struct imx_header *) ptr; | |
102 | flash_header_t *hdr = &imx_hdr->fhdr; | |
103 | uint32_t size; | |
104 | flash_cfg_parms_t *ext_header; | |
105 | ||
106 | size = imx_hdr->dcd_table.preamble.length; | |
107 | if (size > (MAX_HW_CFG_SIZE * sizeof(dcd_type_addr_data_t))) { | |
108 | fprintf(stderr, | |
109 | "Error: Image corrupt DCD size %d exceed maximum %d\n", | |
110 | size / sizeof(dcd_type_addr_data_t), MAX_HW_CFG_SIZE); | |
111 | exit(EXIT_FAILURE); | |
112 | } | |
113 | ||
114 | ext_header = (flash_cfg_parms_t *) ((uint32_t)&imx_hdr->dcd_table + | |
115 | sizeof(dcd_preamble_t) + size); | |
116 | ||
117 | printf("Image Type: Freescale IMX Boot Image\n"); | |
118 | printf("Data Size: "); | |
119 | genimg_print_size(ext_header->length); | |
120 | printf("Load Address: %08x\n", (unsigned int)hdr->app_dest_ptr); | |
121 | printf("Entry Point: %08x\n", (unsigned int)hdr->app_code_jump_vector); | |
122 | } | |
123 | ||
124 | static uint32_t imximage_parse_cfg_file(struct imx_header *imxhdr, char *name) | |
125 | { | |
126 | FILE *fd = NULL; | |
127 | char *line = NULL; | |
128 | char *token, *saveptr1, *saveptr2; | |
129 | int lineno = 0; | |
130 | int fld, value; | |
131 | uint32_t len; | |
132 | int dcd_len = 0; | |
133 | dcd_t *dcd = &imxhdr->dcd_table; | |
134 | int32_t cmd; | |
135 | ||
136 | fd = fopen(name, "r"); | |
137 | if (fd == 0) { | |
138 | fprintf(stderr, "Error: %s - Can't open DCD file\n", name); | |
139 | exit(EXIT_FAILURE); | |
140 | } | |
141 | ||
142 | /* Very simple parsing, line starting with # are comments | |
143 | * and are dropped | |
144 | */ | |
145 | while ((getline(&line, &len, fd)) > 0) { | |
146 | lineno++; | |
147 | ||
148 | token = strtok_r(line, "\r\n", &saveptr1); | |
149 | if (token == NULL) | |
150 | continue; | |
151 | ||
152 | /* Check inside the single line */ | |
153 | for (fld = CFG_COMMAND, cmd = CMD_INVALID, | |
154 | line = token; ; line = NULL, fld++) { | |
155 | token = strtok_r(line, " \t", &saveptr2); | |
156 | if (token == NULL) | |
157 | break; | |
158 | ||
159 | /* Drop all text starting with '#' as comments */ | |
160 | if (token[0] == '#') | |
161 | break; | |
162 | ||
163 | /* parse all fields in a single line */ | |
164 | switch (fld) { | |
165 | case CFG_COMMAND: | |
166 | cmd = get_table_entry_id(imximage_cmds, | |
167 | "imximage commands", token); | |
168 | if (cmd < 0) { | |
169 | fprintf(stderr, | |
170 | "Error: %s[%d] - " | |
171 | "Invalid command (%s)\n", | |
172 | name, lineno, token); | |
173 | exit(EXIT_FAILURE); | |
174 | } | |
175 | break; | |
176 | case CFG_REG_SIZE: | |
177 | switch (cmd) { | |
178 | case CMD_BOOT_FROM: | |
179 | /* Get flash header offset */ | |
180 | imxhdr->flash_offset = | |
181 | get_table_entry_id( | |
182 | imximage_bootops, | |
183 | "imximage boot option", | |
184 | token); | |
185 | if (imxhdr->flash_offset == -1) { | |
186 | fprintf(stderr, | |
187 | "Error: %s[%d] -" | |
188 | "Invalid boot device" | |
189 | "(%s)\n", | |
190 | name, lineno, token); | |
191 | exit(EXIT_FAILURE); | |
192 | } | |
193 | break; | |
194 | case CMD_DATA: | |
195 | value = get_cfg_value(token, | |
196 | name, lineno); | |
197 | ||
198 | /* Byte, halfword, word */ | |
199 | if ((value != 1) && | |
200 | (value != 2) && (value != 4)) { | |
201 | fprintf(stderr, | |
202 | "Error: %s[%d] - " | |
203 | "Invalid register size " | |
204 | "(%d)\n", | |
205 | name, lineno, value); | |
206 | exit(EXIT_FAILURE); | |
207 | } | |
208 | dcd->addr_data[dcd_len].type = value; | |
209 | break; | |
210 | } | |
211 | ||
212 | case CFG_REG_ADDRESS: | |
213 | if (cmd == CMD_DATA) | |
214 | dcd->addr_data[dcd_len].addr = | |
215 | get_cfg_value(token, | |
216 | name, lineno); | |
217 | break; | |
218 | case CFG_REG_VALUE: | |
219 | if (cmd == CMD_DATA) { | |
220 | dcd->addr_data[dcd_len].value = | |
221 | get_cfg_value(token, | |
222 | name, lineno); | |
223 | dcd_len++; | |
224 | } | |
225 | break; | |
226 | } | |
227 | } | |
228 | ||
229 | if (dcd_len > MAX_HW_CFG_SIZE) { | |
230 | fprintf(stderr, | |
231 | "Error: %s[%d] -" | |
232 | "DCD table exceeds maximum size(%d)\n", | |
233 | name, lineno, MAX_HW_CFG_SIZE); | |
234 | } | |
235 | } | |
236 | dcd->preamble.barker = DCD_BARKER; | |
237 | dcd->preamble.length = dcd_len * sizeof(dcd_type_addr_data_t); | |
238 | fclose(fd); | |
239 | ||
240 | return dcd->preamble.length; | |
241 | } | |
242 | ||
243 | static void imximage_set_header(void *ptr, struct stat *sbuf, int ifd, | |
244 | struct mkimage_params *params) | |
245 | { | |
246 | struct imx_header *hdr = (struct imx_header *)ptr; | |
247 | flash_header_t *fhdr = &hdr->fhdr; | |
248 | int dcd_len; | |
249 | flash_cfg_parms_t *ext_header; | |
250 | uint32_t base_offset; | |
251 | ||
252 | /* Set default offset */ | |
253 | hdr->flash_offset = FLASH_OFFSET_STANDARD; | |
254 | ||
255 | /* Set magic number */ | |
256 | fhdr->app_code_barker = APP_CODE_BARKER; | |
257 | ||
258 | /* Parse dcd configuration file */ | |
259 | dcd_len = imximage_parse_cfg_file(hdr, params->imagename); | |
260 | ||
261 | fhdr->app_dest_ptr = params->addr; | |
262 | fhdr->app_dest_ptr = params->ep - hdr->flash_offset - | |
263 | sizeof(struct imx_header); | |
264 | fhdr->app_code_jump_vector = params->ep; | |
265 | ||
266 | base_offset = fhdr->app_dest_ptr + hdr->flash_offset ; | |
267 | fhdr->dcd_ptr_ptr = (uint32_t) ((uint32_t)&fhdr->dcd_ptr - | |
268 | (uint32_t)&fhdr->app_code_jump_vector) + base_offset ; | |
269 | ||
270 | fhdr->dcd_ptr = base_offset + | |
271 | ((uint32_t)&hdr->dcd_table - | |
272 | (uint32_t)&hdr->fhdr); | |
273 | ||
274 | /* The external flash header must be at the end of the DCD table */ | |
275 | ext_header = (flash_cfg_parms_t *) ((uint32_t)&hdr->dcd_table + | |
276 | dcd_len + | |
277 | sizeof(dcd_preamble_t)); | |
278 | ext_header->length = sbuf->st_size + | |
279 | hdr->flash_offset + | |
280 | sizeof(struct imx_header); | |
281 | ||
282 | /* Security feature are not supported */ | |
283 | fhdr->app_code_csf = 0; | |
284 | fhdr->super_root_key = NULL; | |
285 | ||
286 | } | |
287 | ||
288 | int imximage_check_params(struct mkimage_params *params) | |
289 | { | |
290 | if (!params) | |
291 | return CFG_INVALID; | |
292 | if (!strlen(params->imagename)) { | |
293 | fprintf(stderr, "Error: %s - Configuration file not specified, " | |
294 | "it is needed for imximage generation\n", | |
295 | params->cmdname); | |
296 | return CFG_INVALID; | |
297 | } | |
298 | /* | |
299 | * Check parameters: | |
300 | * XIP is not allowed and verify that incompatible | |
301 | * parameters are not sent at the same time | |
302 | * For example, if list is required a data image must not be provided | |
303 | */ | |
304 | return (params->dflag && (params->fflag || params->lflag)) || | |
305 | (params->fflag && (params->dflag || params->lflag)) || | |
306 | (params->lflag && (params->dflag || params->fflag)) || | |
307 | (params->xflag) || !(strlen(params->imagename)); | |
308 | } | |
309 | ||
310 | /* | |
311 | * imximage parameters | |
312 | */ | |
313 | static struct image_type_params imximage_params = { | |
314 | .name = "Freescale i.MX 51 Boot Image support", | |
315 | .header_size = sizeof(struct imx_header), | |
316 | .hdr = (void *)&imximage_header, | |
317 | .check_image_type = imximage_check_image_types, | |
318 | .verify_header = imximage_verify_header, | |
319 | .print_header = imximage_print_header, | |
320 | .set_header = imximage_set_header, | |
321 | .check_params = imximage_check_params, | |
322 | }; | |
323 | ||
324 | void init_imx_image_type(void) | |
325 | { | |
326 | mkimage_register(&imximage_params); | |
327 | } |