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Stefano Babic4962e382011-10-17 00:07:43 +00001/*
2 * (C) Copyright 2011
3 * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24/* Required to obtain the getline prototype from stdio.h */
25#define _GNU_SOURCE
26
27#include "mkimage.h"
28#include "aisimage.h"
29#include <image.h>
30
31#define IS_FNC_EXEC(c) (cmd_table[c].AIS_cmd == AIS_CMD_FNLOAD)
32#define WORD_ALIGN0 4
33#define WORD_ALIGN(len) (((len)+WORD_ALIGN0-1) & ~(WORD_ALIGN0-1))
34#define MAX_CMD_BUFFER 4096
35#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
36
37static uint32_t ais_img_size;
38
39/*
40 * Supported commands for configuration file
41 */
42static table_entry_t aisimage_cmds[] = {
43 {CMD_DATA, "DATA", "Reg Write Data"},
44 {CMD_FILL, "FILL", "Fill range with pattern"},
45 {CMD_CRCON, "CRCON", "CRC Enable"},
46 {CMD_CRCOFF, "CRCOFF", "CRC Disable"},
47 {CMD_CRCCHECK, "CRCCHECK", "CRC Validate"},
48 {CMD_JMPCLOSE, "JMPCLOSE", "Jump & Close"},
49 {CMD_JMP, "JMP", "Jump"},
50 {CMD_SEQREAD, "SEQREAD", "Sequential read"},
51 {CMD_PLL0, "PLL0", "PLL0"},
52 {CMD_PLL1, "PLL1", "PLL1"},
53 {CMD_CLK, "CLK", "Clock configuration"},
54 {CMD_DDR2, "DDR2", "DDR2 Configuration"},
55 {CMD_EMIFA, "EMIFA", "EMIFA"},
56 {CMD_EMIFA_ASYNC, "EMIFA_ASYNC", "EMIFA Async"},
57 {CMD_PLL, "PLL", "PLL & Clock configuration"},
58 {CMD_PSC, "PSC", "PSC setup"},
59 {CMD_PINMUX, "PINMUX", "Pinmux setup"},
60 {CMD_BOOTTABLE, "BOOT_TABLE", "Boot table command"},
61 {-1, "", ""},
62};
63
64static struct ais_func_exec {
65 uint32_t index;
66 uint32_t argcnt;
67} ais_func_table[] = {
68 [CMD_PLL0] = {0, 2},
69 [CMD_PLL1] = {1, 2},
70 [CMD_CLK] = {2, 1},
71 [CMD_DDR2] = {3, 8},
72 [CMD_EMIFA] = {4, 5},
73 [CMD_EMIFA_ASYNC] = {5, 5},
74 [CMD_PLL] = {6, 3},
75 [CMD_PSC] = {7, 1},
76 [CMD_PINMUX] = {8, 3}
77};
78
79static struct cmd_table_t {
80 uint32_t nargs;
81 uint32_t AIS_cmd;
82} cmd_table[] = {
83 [CMD_FILL] = { 4, AIS_CMD_FILL},
84 [CMD_CRCON] = { 0, AIS_CMD_ENCRC},
85 [CMD_CRCOFF] = { 0, AIS_CMD_DISCRC},
86 [CMD_CRCCHECK] = { 2, AIS_CMD_ENCRC},
87 [CMD_JMPCLOSE] = { 1, AIS_CMD_JMPCLOSE},
88 [CMD_JMP] = { 1, AIS_CMD_JMP},
89 [CMD_SEQREAD] = { 0, AIS_CMD_SEQREAD},
90 [CMD_PLL0] = { 2, AIS_CMD_FNLOAD},
91 [CMD_PLL1] = { 2, AIS_CMD_FNLOAD},
92 [CMD_CLK] = { 1, AIS_CMD_FNLOAD},
93 [CMD_DDR2] = { 8, AIS_CMD_FNLOAD},
94 [CMD_EMIFA] = { 5, AIS_CMD_FNLOAD},
95 [CMD_EMIFA_ASYNC] = { 5, AIS_CMD_FNLOAD},
96 [CMD_PLL] = { 3, AIS_CMD_FNLOAD},
97 [CMD_PSC] = { 1, AIS_CMD_FNLOAD},
98 [CMD_PINMUX] = { 3, AIS_CMD_FNLOAD},
99 [CMD_BOOTTABLE] = { 4, AIS_CMD_BOOTTBL},
100};
101
102static uint32_t get_cfg_value(char *token, char *name, int linenr)
103{
104 char *endptr;
105 uint32_t value;
106
107 errno = 0;
108 value = strtoul(token, &endptr, 16);
109 if (errno || (token == endptr)) {
110 fprintf(stderr, "Error: %s[%d] - Invalid hex data(%s)\n",
111 name, linenr, token);
112 exit(EXIT_FAILURE);
113 }
114 return value;
115}
116
117static int get_ais_table_id(uint32_t *ptr)
118{
119
120 int i;
121 int func_no;
122
123 for (i = 0; i < ARRAY_SIZE(cmd_table); i++) {
124 if (*ptr == cmd_table[i].AIS_cmd) {
125 if (cmd_table[i].AIS_cmd != AIS_CMD_FNLOAD)
126 return i;
127
128 func_no = ((struct ais_cmd_func *)ptr)->func_args
129 & 0xFFFF;
130 if (func_no == ais_func_table[i].index)
131 return i;
132 }
133 }
134
135 return -1;
136}
137
138static void aisimage_print_header(const void *hdr)
139{
140 struct ais_header *ais_hdr = (struct ais_header *)hdr;
141 uint32_t *ptr;
142 struct ais_cmd_load *ais_load;
143 int id;
144
145 if (ais_hdr->magic != AIS_MAGIC_WORD) {
146 fprintf(stderr, "Error: - AIS Magic Number not found\n");
147 return;
148 }
149 fprintf(stdout, "Image Type: TI Davinci AIS Boot Image\n");
150 fprintf(stdout, "AIS magic : %08x\n", ais_hdr->magic);
151 ptr = (uint32_t *)&ais_hdr->magic;
152 ptr++;
153
154 while (*ptr != AIS_CMD_JMPCLOSE) {
155 /* Check if we find the image */
156 if (*ptr == AIS_CMD_LOAD) {
157 ais_load = (struct ais_cmd_load *)ptr;
158 fprintf(stdout, "Image at : 0x%08x size 0x%08x\n",
159 ais_load->addr,
160 ais_load->size);
161 ptr = ais_load->data + ais_load->size / sizeof(*ptr);
162 continue;
163 }
164
165 id = get_ais_table_id(ptr);
166 if (id < 0) {
167 fprintf(stderr, "Error: - AIS Image corrupted\n");
168 return;
169 }
170 fprintf(stdout, "AIS cmd : %s\n",
171 get_table_entry_name(aisimage_cmds, NULL, id));
172 ptr += cmd_table[id].nargs + IS_FNC_EXEC(id) + 1;
173 if (((void *)ptr - hdr) > ais_img_size) {
174 fprintf(stderr,
175 "AIS Image not terminated by JMPCLOSE\n");
176 return;
177 }
178 }
179}
180
181static uint32_t *ais_insert_cmd_header(uint32_t cmd, uint32_t nargs,
182 uint32_t *parms, struct image_type_params *tparams,
Simon Glass94e9d4c2011-11-19 08:20:54 +0000183 uint32_t *ptr)
Stefano Babic4962e382011-10-17 00:07:43 +0000184{
185 int i;
186
187 *ptr++ = cmd_table[cmd].AIS_cmd;
188 if (IS_FNC_EXEC(cmd))
189 *ptr++ = ((nargs & 0xFFFF) << 16) + ais_func_table[cmd].index;
190
191 /* Copy parameters */
192 for (i = 0; i < nargs; i++)
193 *ptr++ = cpu_to_le32(parms[i]);
194
195 return ptr;
196
197}
198
199static uint32_t *ais_alloc_buffer(struct mkimage_params *params)
200{
201 int dfd;
202 struct stat sbuf;
203 char *datafile = params->datafile;
204 uint32_t *ptr;
205
206 dfd = open(datafile, O_RDONLY|O_BINARY);
207 if (dfd < 0) {
208 fprintf(stderr, "%s: Can't open %s: %s\n",
209 params->cmdname, datafile, strerror(errno));
210 exit(EXIT_FAILURE);
211 }
212
213 if (fstat(dfd, &sbuf) < 0) {
214 fprintf(stderr, "%s: Can't stat %s: %s\n",
215 params->cmdname, datafile, strerror(errno));
216 exit(EXIT_FAILURE);
217 }
218
219 /*
220 * Place for header is allocated. The size is taken from
221 * the size of the datafile, that the ais_image_generate()
222 * will copy into the header. Copying the datafile
223 * is not left to the main program, because after the datafile
224 * the header must be terminated with the Jump & Close command.
225 */
226 ais_img_size = WORD_ALIGN(sbuf.st_size) + MAX_CMD_BUFFER;
227 ptr = (uint32_t *)malloc(WORD_ALIGN(sbuf.st_size) + MAX_CMD_BUFFER);
228 if (!ptr) {
229 fprintf(stderr, "%s: malloc return failure: %s\n",
230 params->cmdname, strerror(errno));
231 exit(EXIT_FAILURE);
232 }
233
234 close(dfd);
235
236 return ptr;
237}
238
239static uint32_t *ais_copy_image(struct mkimage_params *params,
240 uint32_t *aisptr)
241
242{
243 int dfd;
244 struct stat sbuf;
245 char *datafile = params->datafile;
246 void *ptr;
247
248 dfd = open(datafile, O_RDONLY|O_BINARY);
249 if (dfd < 0) {
250 fprintf(stderr, "%s: Can't open %s: %s\n",
251 params->cmdname, datafile, strerror(errno));
252 exit(EXIT_FAILURE);
253 }
254
255 if (fstat(dfd, &sbuf) < 0) {
256 fprintf(stderr, "%s: Can't stat %s: %s\n",
257 params->cmdname, datafile, strerror(errno));
258 exit(EXIT_FAILURE);
259 }
260
261 ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
262 *aisptr++ = AIS_CMD_LOAD;
263 *aisptr++ = params->ep;
264 *aisptr++ = sbuf.st_size;
265 memcpy((void *)aisptr, ptr, sbuf.st_size);
266 aisptr += WORD_ALIGN(sbuf.st_size) / sizeof(uint32_t);
267
268 (void) munmap((void *)ptr, sbuf.st_size);
269 (void) close(dfd);
270
271 return aisptr;
272
273}
274
275static int aisimage_generate(struct mkimage_params *params,
276 struct image_type_params *tparams)
277{
278 FILE *fd = NULL;
279 char *line = NULL;
280 char *token, *saveptr1, *saveptr2;
281 int lineno = 0;
282 int fld;
283 size_t len;
284 int32_t cmd;
285 uint32_t nargs, cmd_parms[10];
286 uint32_t value, size;
287 char *name = params->imagename;
Simon Glass94e9d4c2011-11-19 08:20:54 +0000288 uint32_t *aishdr;
Stefano Babic4962e382011-10-17 00:07:43 +0000289
290 fd = fopen(name, "r");
291 if (fd == 0) {
292 fprintf(stderr,
293 "Error: %s - Can't open AIS configuration\n", name);
294 exit(EXIT_FAILURE);
295 }
296
297 /*
298 * the size of the header is variable and is computed
299 * scanning the configuration file.
300 */
301 tparams->header_size = 0;
302
303 /*
304 * Start allocating a buffer suitable for most command
305 * The buffer is then reallocated if it is too small
306 */
307 aishdr = ais_alloc_buffer(params);
308 tparams->hdr = aishdr;
309 *aishdr++ = AIS_MAGIC_WORD;
310
311 /* Very simple parsing, line starting with # are comments
312 * and are dropped
313 */
314 while ((getline(&line, &len, fd)) > 0) {
315 lineno++;
316
317 token = strtok_r(line, "\r\n", &saveptr1);
318 if (token == NULL)
319 continue;
320
321 /* Check inside the single line */
322 line = token;
323 fld = CFG_COMMAND;
324 cmd = CMD_INVALID;
325 nargs = 0;
326 while (token != NULL) {
327 token = strtok_r(line, " \t", &saveptr2);
328 if (token == NULL)
329 break;
330
331 /* Drop all text starting with '#' as comments */
332 if (token[0] == '#')
333 break;
334
335 switch (fld) {
336 case CFG_COMMAND:
337 cmd = get_table_entry_id(aisimage_cmds,
338 "aisimage commands", token);
339 if (cmd < 0) {
340 fprintf(stderr,
341 "Error: %s[%d] - Invalid command"
342 "(%s)\n", name, lineno, token);
343
344 exit(EXIT_FAILURE);
345 }
346 break;
347 case CFG_VALUE:
348 value = get_cfg_value(token, name, lineno);
349 cmd_parms[nargs++] = value;
350 if (nargs > cmd_table[cmd].nargs) {
351 fprintf(stderr,
352 "Error: %s[%d] - too much arguments:"
353 "(%s) for command %s\n", name,
354 lineno, token,
355 aisimage_cmds[cmd].sname);
356 exit(EXIT_FAILURE);
357 }
358 break;
359 }
360 line = NULL;
361 fld = CFG_VALUE;
362 }
363 if (cmd != CMD_INVALID) {
364 /* Now insert the command into the header */
365 aishdr = ais_insert_cmd_header(cmd, nargs, cmd_parms,
Simon Glass94e9d4c2011-11-19 08:20:54 +0000366 tparams, aishdr);
Stefano Babic4962e382011-10-17 00:07:43 +0000367 }
368
369 }
370 fclose(fd);
371
372 aishdr = ais_copy_image(params, aishdr);
373
374 /* Add Jmp & Close */
375 *aishdr++ = AIS_CMD_JMPCLOSE;
376 *aishdr++ = params->ep;
377
378 size = (aishdr - (uint32_t *)tparams->hdr) * sizeof(uint32_t);
379 tparams->header_size = size;
380
381 return 0;
382}
383
384static int aisimage_check_image_types(uint8_t type)
385{
386 if (type == IH_TYPE_AISIMAGE)
387 return EXIT_SUCCESS;
388 else
389 return EXIT_FAILURE;
390}
391
392static int aisimage_verify_header(unsigned char *ptr, int image_size,
393 struct mkimage_params *params)
394{
395 struct ais_header *ais_hdr = (struct ais_header *)ptr;
396
397 if (ais_hdr->magic != AIS_MAGIC_WORD)
398 return -FDT_ERR_BADSTRUCTURE;
399
400 /* Store the total size to remember in print_hdr */
401 ais_img_size = image_size;
402
403 return 0;
404}
405
406static void aisimage_set_header(void *ptr, struct stat *sbuf, int ifd,
407 struct mkimage_params *params)
408{
409}
410
411int aisimage_check_params(struct mkimage_params *params)
412{
413 if (!params)
414 return CFG_INVALID;
415 if (!strlen(params->imagename)) {
416 fprintf(stderr, "Error: %s - Configuration file not specified, "
417 "it is needed for aisimage generation\n",
418 params->cmdname);
419 return CFG_INVALID;
420 }
421 /*
422 * Check parameters:
423 * XIP is not allowed and verify that incompatible
424 * parameters are not sent at the same time
425 * For example, if list is required a data image must not be provided
426 */
427 return (params->dflag && (params->fflag || params->lflag)) ||
428 (params->fflag && (params->dflag || params->lflag)) ||
429 (params->lflag && (params->dflag || params->fflag)) ||
430 (params->xflag) || !(strlen(params->imagename));
431}
432
433/*
434 * aisimage parameters
435 */
436static struct image_type_params aisimage_params = {
437 .name = "TI Davinci AIS Boot Image support",
438 .header_size = 0,
439 .hdr = NULL,
440 .check_image_type = aisimage_check_image_types,
441 .verify_header = aisimage_verify_header,
442 .print_header = aisimage_print_header,
443 .set_header = aisimage_set_header,
444 .check_params = aisimage_check_params,
445 .vrec_header = aisimage_generate,
446};
447
448void init_ais_image_type(void)
449{
450 mkimage_register(&aisimage_params);
451}