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Change return value on error.
[openocd.git] / src / flash / nor / ecos.c
blobcae89358db529a6b7f363718c38e4e2bd83d6e89
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 "imp.h"
25 #include <target/embeddedice.h>
26 #include <target/algorithm.h>
27 #include <target/image.h>
28
29
30 #if 0
31 static uint32_t ecosflash_get_flash_status(struct flash_bank *bank);
32 static void ecosflash_set_flash_mode(struct flash_bank *bank,int mode);
33 static uint32_t ecosflash_wait_status_busy(struct flash_bank *bank, uint32_t waitbits, int timeout);
34 static int ecosflash_handle_gpnvm_command(struct command_context *cmd_ctx, char *cmd, char **args, int argc);
35 #endif
36
37 struct ecosflash_flash_bank
38 {
39 struct target *target;
40 struct working_area *write_algorithm;
41 struct working_area *erase_check_algorithm;
42 char *driverPath;
43 uint32_t start_address;
44 };
45
46 static const int sectorSize = 0x10000;
47
48 char *
49 flash_errmsg(int err);
50
51 #ifndef __ECOS
52 #define FLASH_ERR_OK 0x00 /* No error - operation complete */
53 #define FLASH_ERR_INVALID 0x01 /* Invalid FLASH address */
54 #define FLASH_ERR_ERASE 0x02 /* Error trying to erase */
55 #define FLASH_ERR_LOCK 0x03 /* Error trying to lock/unlock */
56 #define FLASH_ERR_PROGRAM 0x04 /* Error trying to program */
57 #define FLASH_ERR_PROTOCOL 0x05 /* Generic error */
58 #define FLASH_ERR_PROTECT 0x06 /* Device/region is write-protected */
59 #define FLASH_ERR_NOT_INIT 0x07 /* FLASH info not yet initialized */
60 #define FLASH_ERR_HWR 0x08 /* Hardware (configuration?) problem */
61 #define FLASH_ERR_ERASE_SUSPEND 0x09 /* Device is in erase suspend mode */
62 #define FLASH_ERR_PROGRAM_SUSPEND 0x0a /* Device is in in program suspend mode */
63 #define FLASH_ERR_DRV_VERIFY 0x0b /* Driver failed to verify data */
64 #define FLASH_ERR_DRV_TIMEOUT 0x0c /* Driver timed out waiting for device */
65 #define FLASH_ERR_DRV_WRONG_PART 0x0d /* Driver does not support device */
66 #define FLASH_ERR_LOW_VOLTAGE 0x0e /* Not enough juice to complete job */
67
68 char *
69 flash_errmsg(int err)
70 {
71 switch (err) {
72 case FLASH_ERR_OK:
73 return "No error - operation complete";
74 case FLASH_ERR_ERASE_SUSPEND:
75 return "Device is in erase suspend state";
76 case FLASH_ERR_PROGRAM_SUSPEND:
77 return "Device is in program suspend state";
78 case FLASH_ERR_INVALID:
79 return "Invalid FLASH address";
80 case FLASH_ERR_ERASE:
81 return "Error trying to erase";
82 case FLASH_ERR_LOCK:
83 return "Error trying to lock/unlock";
84 case FLASH_ERR_PROGRAM:
85 return "Error trying to program";
86 case FLASH_ERR_PROTOCOL:
87 return "Generic error";
88 case FLASH_ERR_PROTECT:
89 return "Device/region is write-protected";
90 case FLASH_ERR_NOT_INIT:
91 return "FLASH sub-system not initialized";
92 case FLASH_ERR_DRV_VERIFY:
93 return "Data verify failed after operation";
94 case FLASH_ERR_DRV_TIMEOUT:
95 return "Driver timed out waiting for device";
96 case FLASH_ERR_DRV_WRONG_PART:
97 return "Driver does not support device";
98 case FLASH_ERR_LOW_VOLTAGE:
99 return "Device reports low voltage";
100 default:
101 return "Unknown error";
102 }
103 }
104 #endif
105
106 /* flash bank ecosflash <base> <size> <chip_width> <bus_width> <target#> <driverPath>
107 */
108 FLASH_BANK_COMMAND_HANDLER(ecosflash_flash_bank_command)
109 {
110 struct ecosflash_flash_bank *info;
111
112 if (CMD_ARGC < 7)
113 {
114 return ERROR_COMMAND_SYNTAX_ERROR;
115 }
116
117 info = malloc(sizeof(struct ecosflash_flash_bank));
118 if (info == NULL)
119 {
120 LOG_ERROR("no memory for flash bank info");
121 exit(-1);
122 }
123 bank->driver_priv = info;
124 info->driverPath = strdup(CMD_ARGV[6]);
125
126 /* eCos flash sector sizes are not exposed to OpenOCD, use 0x10000 as
127 * a way to improve impedance match between OpenOCD and eCos flash
128 * driver.
129 */
130 int i = 0;
131 uint32_t offset = 0;
132 bank->num_sectors = bank->size/sectorSize;
133 bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
134 for (i = 0; i < bank->num_sectors; i++)
135 {
136 bank->sectors[i].offset = offset;
137 bank->sectors[i].size = sectorSize;
138 offset += bank->sectors[i].size;
139 bank->sectors[i].is_erased = -1;
140 bank->sectors[i].is_protected = 0;
141 }
142
143 info->target = get_target(CMD_ARGV[5]);
144 if (info->target == NULL)
145 {
146 LOG_ERROR("target '%s' not defined", CMD_ARGV[5]);
147 return ERROR_FAIL;
148 }
149 return ERROR_OK;
150 }
151
152 static int loadDriver(struct ecosflash_flash_bank *info)
153 {
154 size_t buf_cnt;
155 size_t image_size;
156 struct image image;
157
158 image.base_address_set = 0;
159 image.start_address_set = 0;
160 struct target *target = info->target;
161 int retval;
162
163 if ((retval = image_open(&image, info->driverPath, NULL)) != ERROR_OK)
164 {
165 return retval;
166 }
167
168 info->start_address = image.start_address;
169
170 image_size = 0x0;
171 int i;
172 for (i = 0; i < image.num_sections; i++)
173 {
174 void *buffer = malloc(image.sections[i].size);
175 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
176 {
177 free(buffer);
178 image_close(&image);
179 return retval;
180 }
181 target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer);
182 image_size += buf_cnt;
183 LOG_DEBUG("%zu bytes written at address 0x%8.8" PRIx32 "",
184 buf_cnt, image.sections[i].base_address);
185
186 free(buffer);
187 }
188
189 image_close(&image);
190
191 return ERROR_OK;
192 }
193
194 static int const OFFSET_ERASE = 0x0;
195 static int const OFFSET_ERASE_SIZE = 0x8;
196 static int const OFFSET_FLASH = 0xc;
197 static int const OFFSET_FLASH_SIZE = 0x8;
198 static int const OFFSET_GET_WORKAREA = 0x18;
199 static int const OFFSET_GET_WORKAREA_SIZE = 0x4;
200
201 static int runCode(struct ecosflash_flash_bank *info,
202 uint32_t codeStart, uint32_t codeStop, uint32_t r0, uint32_t r1, uint32_t r2,
203 uint32_t *result,
204 /* timeout in ms */
205 int timeout)
206 {
207 struct target *target = info->target;
208
209 struct reg_param reg_params[3];
210 struct arm_algorithm armv4_5_info;
211 armv4_5_info.common_magic = ARM_COMMON_MAGIC;
212 armv4_5_info.core_mode = ARM_MODE_SVC;
213 armv4_5_info.core_state = ARM_STATE_ARM;
214
215 init_reg_param(&reg_params[0], "r0", 32, PARAM_IN_OUT);
216 init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
217 init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT);
218
219 buf_set_u32(reg_params[0].value, 0, 32, r0);
220 buf_set_u32(reg_params[1].value, 0, 32, r1);
221 buf_set_u32(reg_params[2].value, 0, 32, r2);
222
223 int retval;
224 if ((retval = target_run_algorithm(target, 0, NULL, 3, reg_params,
225 codeStart,
226 codeStop, timeout,
227 &armv4_5_info)) != ERROR_OK)
228 {
229 LOG_ERROR("error executing eCos flash algorithm");
230 return retval;
231 }
232
233 *result = buf_get_u32(reg_params[0].value, 0, 32);
234
235 destroy_reg_param(&reg_params[0]);
236 destroy_reg_param(&reg_params[1]);
237 destroy_reg_param(&reg_params[2]);
238
239 return ERROR_OK;
240 }
241
242 static int eCosBoard_erase(struct ecosflash_flash_bank *info, uint32_t address, uint32_t len)
243 {
244 int retval;
245 int timeout = (len / 20480 + 1) * 1000; /*asume 20 KB/s*/
246
247 retval = loadDriver(info);
248 if (retval != ERROR_OK)
249 return retval;
250
251 uint32_t flashErr;
252 retval = runCode(info,
253 info->start_address + OFFSET_ERASE,
254 info->start_address + OFFSET_ERASE + OFFSET_ERASE_SIZE,
255 address,
256 len,
257 0,
258 &flashErr,
259 timeout
260 );
261 if (retval != ERROR_OK)
262 return retval;
263
264 if (flashErr != 0x0)
265 {
266 LOG_ERROR("Flash erase failed with %d (%s)", (int)flashErr, flash_errmsg(flashErr));
267 return ERROR_FAIL;
268 }
269
270 return ERROR_OK;
271 }
272
273 static int eCosBoard_flash(struct ecosflash_flash_bank *info, void *data, uint32_t address, uint32_t len)
274 {
275 struct target *target = info->target;
276 const int chunk = 8192;
277 int retval = ERROR_OK;
278 int timeout = (chunk / 20480 + 1) * 1000; /*asume 20 KB/s + 1 second*/
279
280 retval = loadDriver(info);
281 if (retval != ERROR_OK)
282 return retval;
283
284 uint32_t buffer;
285 retval = runCode(info,
286 info->start_address + OFFSET_GET_WORKAREA,
287 info->start_address + OFFSET_GET_WORKAREA + OFFSET_GET_WORKAREA_SIZE,
288 0,
289 0,
290 0,
291 &buffer,
292 1000);
293 if (retval != ERROR_OK)
294 return retval;
295
296
297 uint32_t i;
298 for (i = 0; i < len; i += chunk)
299 {
300 int t = len-i;
301 if (t > chunk)
302 {
303 t = chunk;
304 }
305
306 retval = target_write_buffer(target, buffer, t, ((uint8_t *)data) + i);
307 if (retval != ERROR_OK)
308 return retval;
309
310 uint32_t flashErr;
311 retval = runCode(info,
312 info->start_address + OFFSET_FLASH,
313 info->start_address + OFFSET_FLASH + OFFSET_FLASH_SIZE,
314 buffer,
315 address + i,
316 t,
317 &flashErr,
318 timeout);
319 if (retval != ERROR_OK)
320 return retval;
321
322 if (flashErr != 0x0)
323 {
324 LOG_ERROR("Flash prog failed with %d (%s)", (int)flashErr, flash_errmsg(flashErr));
325 return ERROR_FAIL;
326 }
327 }
328 return ERROR_OK;
329 }
330
331 static int ecosflash_probe(struct flash_bank *bank)
332 {
333 return ERROR_OK;
334 }
335
336 #if 0
337 static void command(struct flash_bank *bank, uint8_t cmd, uint8_t *cmd_buf)
338 {
339 struct ecosflash_flash_bank *info = bank->driver_priv;
340 int i;
341
342 if (info->target->endianness == TARGET_LITTLE_ENDIAN)
343 {
344 for (i = bank->bus_width; i > 0; i--)
345 {
346 *cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;
347 }
348 }
349 else
350 {
351 for (i = 1; i <= bank->bus_width; i++)
352 {
353 *cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;
354 }
355 }
356 }
357 #endif
358
359 #if 0
360 static uint32_t ecosflash_address(struct flash_bank *bank, uint32_t address)
361 {
362 uint32_t retval = 0;
363 switch (bank->bus_width)
364 {
365 case 4:
366 retval = address & 0xfffffffc;
367 case 2:
368 retval = address & 0xfffffffe;
369 case 1:
370 retval = address;
371 }
372
373 return retval + bank->base;
374 }
375 #endif
376
377 static int ecosflash_erase(struct flash_bank *bank, int first, int last)
378 {
379 struct flash_bank *c = bank;
380 struct ecosflash_flash_bank *info = bank->driver_priv;
381 return eCosBoard_erase(info, c->base + first*sectorSize, sectorSize*(last-first + 1));
382 }
383
384 static int ecosflash_protect(struct flash_bank *bank, int set, int first, int last)
385 {
386 return ERROR_OK;
387 }
388
389 static int ecosflash_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
390 {
391 struct ecosflash_flash_bank *info = bank->driver_priv;
392 struct flash_bank *c = bank;
393 return eCosBoard_flash(info, buffer, c->base + offset, count);
394 }
395
396 static int ecosflash_protect_check(struct flash_bank *bank)
397 {
398 return ERROR_OK;
399 }
400
401 static int ecosflash_info(struct flash_bank *bank, char *buf, int buf_size)
402 {
403 struct ecosflash_flash_bank *info = bank->driver_priv;
404 snprintf(buf, buf_size, "eCos flash driver: %s", info->driverPath);
405 return ERROR_OK;
406 }
407
408 #if 0
409 static uint32_t ecosflash_get_flash_status(struct flash_bank *bank)
410 {
411 return ERROR_OK;
412 }
413
414 static void ecosflash_set_flash_mode(struct flash_bank *bank,int mode)
415 {
416
417 }
418
419 static uint32_t ecosflash_wait_status_busy(struct flash_bank *bank, uint32_t waitbits, int timeout)
420 {
421 return ERROR_OK;
422 }
423
424 static int ecosflash_handle_gpnvm_command(struct command_context *cmd_ctx, char *cmd, char **args, int argc)
425 {
426 return ERROR_OK;
427 }
428 #endif
429
430 struct flash_driver ecosflash_flash = {
431 .name = "ecosflash",
432 .flash_bank_command = ecosflash_flash_bank_command,
433 .erase = ecosflash_erase,
434 .protect = ecosflash_protect,
435 .write = ecosflash_write,
436 .read = default_flash_read,
437 .probe = ecosflash_probe,
438 .auto_probe = ecosflash_probe,
439 .erase_check = default_flash_blank_check,
440 .protect_check = ecosflash_protect_check,
441 .info = ecosflash_info
442 };
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