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- preserve cortex_m3 C_MASKINTS during resume/step
[openocd.git] / src / flash / ecos.c
blob452e86cb35a1e3fcf6b38fd2b2e484f814cfc70f
1 /***************************************************************************
2 * Copyright (C) 2007,2008 Øyvind Harboe *
3 * oyvind.harboe@zylin.com *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #include <string.h>
25
26 #include "replacements.h"
27
28
29 #include "flash.h"
30
31 #include "target.h"
32
33 #include "flash.h"
34 #include "target.h"
35 #include "log.h"
36 #include "binarybuffer.h"
37 #include "../target/embeddedice.h"
38 #include "types.h"
39
40
41
42 int ecosflash_register_commands(struct command_context_s *cmd_ctx);
43 int ecosflash_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
44 int ecosflash_erase(struct flash_bank_s *bank, int first, int last);
45 int ecosflash_protect(struct flash_bank_s *bank, int set, int first, int last);
46 int ecosflash_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
47 int ecosflash_probe(struct flash_bank_s *bank);
48 int ecosflash_protect_check(struct flash_bank_s *bank);
49 int ecosflash_info(struct flash_bank_s *bank, char *buf, int buf_size);
50
51 u32 ecosflash_get_flash_status(flash_bank_t *bank);
52 void ecosflash_set_flash_mode(flash_bank_t *bank,int mode);
53 u32 ecosflash_wait_status_busy(flash_bank_t *bank, u32 waitbits, int timeout);
54 int ecosflash_handle_gpnvm_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
55
56 flash_driver_t ecosflash_flash =
57 {
58 .name = "ecosflash",
59 .register_commands = ecosflash_register_commands,
60 .flash_bank_command = ecosflash_flash_bank_command,
61 .erase = ecosflash_erase,
62 .protect = ecosflash_protect,
63 .write = ecosflash_write,
64 .probe = ecosflash_probe,
65 .auto_probe = ecosflash_probe,
66 .erase_check = default_flash_blank_check,
67 .protect_check = ecosflash_protect_check,
68 .info = ecosflash_info
69 };
70
71 typedef struct ecosflash_flash_bank_s
72 {
73 struct target_s *target;
74 working_area_t *write_algorithm;
75 working_area_t *erase_check_algorithm;
76 char *driverPath;
77 u32 start_address;
78 } ecosflash_flash_bank_t;
79
80 static const int sectorSize=0x10000;
81
82 char *
83 flash_errmsg(int err);
84
85 #ifndef __ECOS
86 #define FLASH_ERR_OK 0x00 /* No error - operation complete */
87 #define FLASH_ERR_INVALID 0x01 /* Invalid FLASH address */
88 #define FLASH_ERR_ERASE 0x02 /* Error trying to erase */
89 #define FLASH_ERR_LOCK 0x03 /* Error trying to lock/unlock */
90 #define FLASH_ERR_PROGRAM 0x04 /* Error trying to program */
91 #define FLASH_ERR_PROTOCOL 0x05 /* Generic error */
92 #define FLASH_ERR_PROTECT 0x06 /* Device/region is write-protected */
93 #define FLASH_ERR_NOT_INIT 0x07 /* FLASH info not yet initialized */
94 #define FLASH_ERR_HWR 0x08 /* Hardware (configuration?) problem */
95 #define FLASH_ERR_ERASE_SUSPEND 0x09 /* Device is in erase suspend mode */
96 #define FLASH_ERR_PROGRAM_SUSPEND 0x0a /* Device is in in program suspend mode */
97 #define FLASH_ERR_DRV_VERIFY 0x0b /* Driver failed to verify data */
98 #define FLASH_ERR_DRV_TIMEOUT 0x0c /* Driver timed out waiting for device */
99 #define FLASH_ERR_DRV_WRONG_PART 0x0d /* Driver does not support device */
100 #define FLASH_ERR_LOW_VOLTAGE 0x0e /* Not enough juice to complete job */
101
102
103 char *
104 flash_errmsg(int err)
105 {
106 switch (err) {
107 case FLASH_ERR_OK:
108 return "No error - operation complete";
109 case FLASH_ERR_ERASE_SUSPEND:
110 return "Device is in erase suspend state";
111 case FLASH_ERR_PROGRAM_SUSPEND:
112 return "Device is in program suspend state";
113 case FLASH_ERR_INVALID:
114 return "Invalid FLASH address";
115 case FLASH_ERR_ERASE:
116 return "Error trying to erase";
117 case FLASH_ERR_LOCK:
118 return "Error trying to lock/unlock";
119 case FLASH_ERR_PROGRAM:
120 return "Error trying to program";
121 case FLASH_ERR_PROTOCOL:
122 return "Generic error";
123 case FLASH_ERR_PROTECT:
124 return "Device/region is write-protected";
125 case FLASH_ERR_NOT_INIT:
126 return "FLASH sub-system not initialized";
127 case FLASH_ERR_DRV_VERIFY:
128 return "Data verify failed after operation";
129 case FLASH_ERR_DRV_TIMEOUT:
130 return "Driver timed out waiting for device";
131 case FLASH_ERR_DRV_WRONG_PART:
132 return "Driver does not support device";
133 case FLASH_ERR_LOW_VOLTAGE:
134 return "Device reports low voltage";
135 default:
136 return "Unknown error";
137 }
138 }
139 #endif
140
141 /* flash bank ecosflash <base> <size> <chip_width> <bus_width> <target#> <driverPath>
142 */
143 int ecosflash_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
144 {
145 ecosflash_flash_bank_t *info;
146
147 if (argc < 7)
148 {
149 LOG_WARNING("incomplete flash_bank ecosflash configuration");
150 return ERROR_FLASH_BANK_INVALID;
151 }
152
153 info = malloc(sizeof(ecosflash_flash_bank_t));
154 if(info == NULL)
155 {
156 LOG_ERROR("no memory for flash bank info");
157 exit(-1);
158 }
159 bank->driver_priv = info;
160 info->driverPath=strdup(args[6]);
161
162 /* eCos flash sector sizes are not exposed to OpenOCD, use 0x10000 as
163 * a way to improve impeadance matach between OpenOCD and eCos flash
164 * driver.
165 */
166 int i = 0;
167 u32 offset = 0;
168 bank->num_sectors=bank->size/sectorSize;
169 bank->sectors = malloc(sizeof(flash_sector_t) * bank->num_sectors);
170 for (i = 0; i < bank->num_sectors; i++)
171 {
172 bank->sectors[i].offset = offset;
173 bank->sectors[i].size = sectorSize;
174 offset += bank->sectors[i].size;
175 bank->sectors[i].is_erased = -1;
176 bank->sectors[i].is_protected = 0;
177 }
178
179 info->target = get_target_by_num(strtoul(args[5], NULL, 0));
180 if (info->target == NULL)
181 {
182 LOG_ERROR("no target '%i' configured", (int)strtoul(args[5], NULL, 0));
183 return ERROR_FAIL;
184 }
185 return ERROR_OK;
186 }
187
188
189 int loadDriver(ecosflash_flash_bank_t *info)
190 {
191 u32 buf_cnt;
192 u32 image_size;
193 image_t image;
194
195 image.base_address_set = 0;
196 image.start_address_set = 0;
197 target_t *target=info->target;
198 int retval;
199
200 if ((retval=image_open(&image, info->driverPath, NULL)) != ERROR_OK)
201 {
202 return retval;
203 }
204
205 info->start_address=image.start_address;
206
207 image_size = 0x0;
208 int i;
209 for (i = 0; i < image.num_sections; i++)
210 {
211 void *buffer = malloc(image.sections[i].size);
212 int retval;
213 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
214 {
215 free(buffer);
216 image_close(&image);
217 return retval;
218 }
219 target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer);
220 image_size += buf_cnt;
221 LOG_DEBUG("%u byte written at address 0x%8.8x", buf_cnt, image.sections[i].base_address);
222
223 free(buffer);
224 }
225
226 image_close(&image);
227
228 return ERROR_OK;
229 }
230
231
232 static int const OFFSET_ERASE=0x0;
233 static int const OFFSET_ERASE_SIZE=0x8;
234 static int const OFFSET_FLASH=0xc;
235 static int const OFFSET_FLASH_SIZE=0x8;
236 static int const OFFSET_GET_WORKAREA=0x18;
237 static int const OFFSET_GET_WORKAREA_SIZE=0x4;
238
239
240 int runCode(ecosflash_flash_bank_t *info,
241 u32 codeStart, u32 codeStop, u32 r0, u32 r1, u32 r2,
242 u32 *result,
243 /* timeout in ms */
244 int timeout)
245 {
246 target_t *target=info->target;
247
248 reg_param_t reg_params[3];
249 armv4_5_algorithm_t armv4_5_info;
250 armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
251 armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
252 armv4_5_info.core_state = ARMV4_5_STATE_ARM;
253
254 init_reg_param(&reg_params[0], "r0", 32, PARAM_IN_OUT);
255 init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
256 init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT);
257
258 buf_set_u32(reg_params[0].value, 0, 32, r0);
259 buf_set_u32(reg_params[1].value, 0, 32, r1);
260 buf_set_u32(reg_params[2].value, 0, 32, r2);
261
262 int retval;
263 if ((retval = target->type->run_algorithm(target, 0, NULL, 3, reg_params,
264 codeStart,
265 codeStop, timeout,
266 &armv4_5_info)) != ERROR_OK)
267 {
268 LOG_ERROR("error executing eCos flash algorithm");
269 return retval;
270 }
271
272 *result=buf_get_u32(reg_params[0].value, 0, 32);
273
274 destroy_reg_param(&reg_params[0]);
275 destroy_reg_param(&reg_params[1]);
276 destroy_reg_param(&reg_params[2]);
277
278 return ERROR_OK;
279 }
280
281 int eCosBoard_erase(ecosflash_flash_bank_t *info, u32 address, u32 len)
282 {
283 int retval;
284 int timeout = (len / 20480 + 1) * 1000; /*asume 20 KB/s*/
285
286 retval=loadDriver(info);
287 if (retval!=ERROR_OK)
288 return retval;
289
290 u32 flashErr;
291 retval=runCode(info,
292 info->start_address+OFFSET_ERASE,
293 info->start_address+OFFSET_ERASE+OFFSET_ERASE_SIZE,
294 address,
295 len,
296 0,
297 &flashErr,
298 timeout
299 );
300 if (retval!=ERROR_OK)
301 return retval;
302
303 if (flashErr != 0x0)
304 {
305 LOG_ERROR("Flash erase failed with %d (%s)\n", flashErr, flash_errmsg(flashErr));
306 return ERROR_FAIL;
307 }
308
309 return ERROR_OK;
310 }
311
312 int eCosBoard_flash(ecosflash_flash_bank_t *info, void *data, u32 address, u32 len)
313 {
314 target_t *target=info->target;
315 const int chunk=8192;
316 int retval=ERROR_OK;
317 int timeout = (chunk / 20480 + 1) * 1000; /*asume 20 KB/s + 1 second*/
318
319 retval=loadDriver(info);
320 if (retval!=ERROR_OK)
321 return retval;
322
323 u32 buffer;
324 retval=runCode(info,
325 info->start_address+OFFSET_GET_WORKAREA,
326 info->start_address+OFFSET_GET_WORKAREA+OFFSET_GET_WORKAREA_SIZE,
327 0,
328 0,
329 0,
330 &buffer,
331 1000);
332 if (retval!=ERROR_OK)
333 return retval;
334
335
336 int i;
337 for (i=0; i<len; i+=chunk)
338 {
339 int t=len-i;
340 if (t>chunk)
341 {
342 t=chunk;
343 }
344
345 int retval;
346 retval=target_write_buffer(target, buffer, t, ((u8 *)data)+i);
347 if (retval != ERROR_OK)
348 return retval;
349
350 u32 flashErr;
351 retval=runCode(info,
352 info->start_address+OFFSET_FLASH,
353 info->start_address+OFFSET_FLASH+OFFSET_FLASH_SIZE,
354 buffer,
355 address+i,
356 t,
357 &flashErr,
358 timeout);
359 if (retval != ERROR_OK)
360 return retval;
361
362 if (flashErr != 0x0)
363 {
364 LOG_ERROR("Flash prog failed with %d (%s)\n", flashErr, flash_errmsg(flashErr));
365 return ERROR_FAIL;
366 }
367 }
368 return ERROR_OK;
369 }
370
371
372 int ecosflash_probe(struct flash_bank_s *bank)
373 {
374 return ERROR_OK;
375 }
376
377
378 int ecosflash_register_commands(struct command_context_s *cmd_ctx)
379 {
380 register_command(cmd_ctx, NULL, "ecosflash", NULL, COMMAND_ANY, NULL);
381
382 return ERROR_OK;
383 }
384
385 /*
386 static void command(flash_bank_t *bank, u8 cmd, u8 *cmd_buf)
387 {
388 ecosflash_flash_bank_t *info = bank->driver_priv;
389 int i;
390
391 if (info->target->endianness == TARGET_LITTLE_ENDIAN)
392 {
393 for (i = bank->bus_width; i > 0; i--)
394 {
395 *cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;
396 }
397 }
398 else
399 {
400 for (i = 1; i <= bank->bus_width; i++)
401 {
402 *cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;
403 }
404 }
405 }
406 */
407
408 u32 ecosflash_address(struct flash_bank_s *bank, u32 address)
409 {
410 u32 retval = 0;
411 switch(bank->bus_width)
412 {
413 case 4:
414 retval = address & 0xfffffffc;
415 case 2:
416 retval = address & 0xfffffffe;
417 case 1:
418 retval = address;
419 }
420
421 return retval + bank->base;
422 }
423
424
425 int ecosflash_erase(struct flash_bank_s *bank, int first, int last)
426 {
427 struct flash_bank_s *c=bank;
428 ecosflash_flash_bank_t *info = bank->driver_priv;
429 return eCosBoard_erase(info, c->base+first*sectorSize, sectorSize*(last-first+1));
430 }
431
432 int ecosflash_protect(struct flash_bank_s *bank, int set, int first, int last)
433 {
434 return ERROR_OK;
435 }
436
437
438 int ecosflash_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
439 {
440 ecosflash_flash_bank_t *info = bank->driver_priv;
441 struct flash_bank_s *c=bank;
442 return eCosBoard_flash(info, buffer, c->base+offset, count);
443 }
444
445
446 int ecosflash_protect_check(struct flash_bank_s *bank)
447 {
448 return ERROR_OK;
449 }
450
451 int ecosflash_info(struct flash_bank_s *bank, char *buf, int buf_size)
452 {
453 ecosflash_flash_bank_t *info = bank->driver_priv;
454 snprintf(buf, buf_size, "eCos flash driver: %s", info->driverPath);
455 return ERROR_OK;
456 }
457
458
459 u32 ecosflash_get_flash_status(flash_bank_t *bank)
460 {
461 return ERROR_OK;
462 }
463
464 void ecosflash_set_flash_mode(flash_bank_t *bank,int mode)
465 {
466
467 }
468
469 u32 ecosflash_wait_status_busy(flash_bank_t *bank, u32 waitbits, int timeout)
470 {
471 return ERROR_OK;
472 }
473
474 int ecosflash_handle_gpnvm_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
475 {
476 return ERROR_OK;
477 }
478
479
480
481
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