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ARM: rename ARMV4_5_STATE_* as ARM_STATE_*
[openocd/ztw.git] / src / flash / nor / ecos.c
blob41b06b3ca446db723d46e4328f9581a66a540708
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 LOG_WARNING("incomplete flash_bank ecosflash configuration");
115 return ERROR_FLASH_BANK_INVALID;
116 }
117
118 info = malloc(sizeof(struct ecosflash_flash_bank));
119 if (info == NULL)
120 {
121 LOG_ERROR("no memory for flash bank info");
122 exit(-1);
123 }
124 bank->driver_priv = info;
125 info->driverPath = strdup(CMD_ARGV[6]);
126
127 /* eCos flash sector sizes are not exposed to OpenOCD, use 0x10000 as
128 * a way to improve impedance match between OpenOCD and eCos flash
129 * driver.
130 */
131 int i = 0;
132 uint32_t offset = 0;
133 bank->num_sectors = bank->size/sectorSize;
134 bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
135 for (i = 0; i < bank->num_sectors; i++)
136 {
137 bank->sectors[i].offset = offset;
138 bank->sectors[i].size = sectorSize;
139 offset += bank->sectors[i].size;
140 bank->sectors[i].is_erased = -1;
141 bank->sectors[i].is_protected = 0;
142 }
143
144 info->target = get_target(CMD_ARGV[5]);
145 if (info->target == NULL)
146 {
147 LOG_ERROR("target '%s' not defined", CMD_ARGV[5]);
148 return ERROR_FAIL;
149 }
150 return ERROR_OK;
151 }
152
153 static int loadDriver(struct ecosflash_flash_bank *info)
154 {
155 size_t buf_cnt;
156 size_t image_size;
157 struct image image;
158
159 image.base_address_set = 0;
160 image.start_address_set = 0;
161 struct target *target = info->target;
162 int retval;
163
164 if ((retval = image_open(&image, info->driverPath, NULL)) != ERROR_OK)
165 {
166 return retval;
167 }
168
169 info->start_address = image.start_address;
170
171 image_size = 0x0;
172 int i;
173 for (i = 0; i < image.num_sections; i++)
174 {
175 void *buffer = malloc(image.sections[i].size);
176 int retval;
177 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
178 {
179 free(buffer);
180 image_close(&image);
181 return retval;
182 }
183 target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer);
184 image_size += buf_cnt;
185 LOG_DEBUG("%zu bytes written at address 0x%8.8" PRIx32 "",
186 buf_cnt, image.sections[i].base_address);
187
188 free(buffer);
189 }
190
191 image_close(&image);
192
193 return ERROR_OK;
194 }
195
196 static int const OFFSET_ERASE = 0x0;
197 static int const OFFSET_ERASE_SIZE = 0x8;
198 static int const OFFSET_FLASH = 0xc;
199 static int const OFFSET_FLASH_SIZE = 0x8;
200 static int const OFFSET_GET_WORKAREA = 0x18;
201 static int const OFFSET_GET_WORKAREA_SIZE = 0x4;
202
203 static int runCode(struct ecosflash_flash_bank *info,
204 uint32_t codeStart, uint32_t codeStop, uint32_t r0, uint32_t r1, uint32_t r2,
205 uint32_t *result,
206 /* timeout in ms */
207 int timeout)
208 {
209 struct target *target = info->target;
210
211 struct reg_param reg_params[3];
212 struct armv4_5_algorithm armv4_5_info;
213 armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
214 armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
215 armv4_5_info.core_state = ARM_STATE_ARM;
216
217 init_reg_param(&reg_params[0], "r0", 32, PARAM_IN_OUT);
218 init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
219 init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT);
220
221 buf_set_u32(reg_params[0].value, 0, 32, r0);
222 buf_set_u32(reg_params[1].value, 0, 32, r1);
223 buf_set_u32(reg_params[2].value, 0, 32, r2);
224
225 int retval;
226 if ((retval = target_run_algorithm(target, 0, NULL, 3, reg_params,
227 codeStart,
228 codeStop, timeout,
229 &armv4_5_info)) != ERROR_OK)
230 {
231 LOG_ERROR("error executing eCos flash algorithm");
232 return retval;
233 }
234
235 *result = buf_get_u32(reg_params[0].value, 0, 32);
236
237 destroy_reg_param(&reg_params[0]);
238 destroy_reg_param(&reg_params[1]);
239 destroy_reg_param(&reg_params[2]);
240
241 return ERROR_OK;
242 }
243
244 static int eCosBoard_erase(struct ecosflash_flash_bank *info, uint32_t address, uint32_t len)
245 {
246 int retval;
247 int timeout = (len / 20480 + 1) * 1000; /*asume 20 KB/s*/
248
249 retval = loadDriver(info);
250 if (retval != ERROR_OK)
251 return retval;
252
253 uint32_t flashErr;
254 retval = runCode(info,
255 info->start_address + OFFSET_ERASE,
256 info->start_address + OFFSET_ERASE + OFFSET_ERASE_SIZE,
257 address,
258 len,
259 0,
260 &flashErr,
261 timeout
262 );
263 if (retval != ERROR_OK)
264 return retval;
265
266 if (flashErr != 0x0)
267 {
268 LOG_ERROR("Flash erase failed with %d (%s)\n", (int)flashErr, flash_errmsg(flashErr));
269 return ERROR_FAIL;
270 }
271
272 return ERROR_OK;
273 }
274
275 static int eCosBoard_flash(struct ecosflash_flash_bank *info, void *data, uint32_t address, uint32_t len)
276 {
277 struct target *target = info->target;
278 const int chunk = 8192;
279 int retval = ERROR_OK;
280 int timeout = (chunk / 20480 + 1) * 1000; /*asume 20 KB/s + 1 second*/
281
282 retval = loadDriver(info);
283 if (retval != ERROR_OK)
284 return retval;
285
286 uint32_t buffer;
287 retval = runCode(info,
288 info->start_address + OFFSET_GET_WORKAREA,
289 info->start_address + OFFSET_GET_WORKAREA + OFFSET_GET_WORKAREA_SIZE,
290 0,
291 0,
292 0,
293 &buffer,
294 1000);
295 if (retval != ERROR_OK)
296 return retval;
297
298
299 uint32_t i;
300 for (i = 0; i < len; i += chunk)
301 {
302 int t = len-i;
303 if (t > chunk)
304 {
305 t = chunk;
306 }
307
308 int retval;
309 retval = target_write_buffer(target, buffer, t, ((uint8_t *)data) + i);
310 if (retval != ERROR_OK)
311 return retval;
312
313 uint32_t flashErr;
314 retval = runCode(info,
315 info->start_address + OFFSET_FLASH,
316 info->start_address + OFFSET_FLASH + OFFSET_FLASH_SIZE,
317 buffer,
318 address + i,
319 t,
320 &flashErr,
321 timeout);
322 if (retval != ERROR_OK)
323 return retval;
324
325 if (flashErr != 0x0)
326 {
327 LOG_ERROR("Flash prog failed with %d (%s)\n", (int)flashErr, flash_errmsg(flashErr));
328 return ERROR_FAIL;
329 }
330 }
331 return ERROR_OK;
332 }
333
334 static int ecosflash_probe(struct flash_bank *bank)
335 {
336 return ERROR_OK;
337 }
338
339 #if 0
340 static void command(struct flash_bank *bank, uint8_t cmd, uint8_t *cmd_buf)
341 {
342 struct ecosflash_flash_bank *info = bank->driver_priv;
343 int i;
344
345 if (info->target->endianness == TARGET_LITTLE_ENDIAN)
346 {
347 for (i = bank->bus_width; i > 0; i--)
348 {
349 *cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;
350 }
351 }
352 else
353 {
354 for (i = 1; i <= bank->bus_width; i++)
355 {
356 *cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;
357 }
358 }
359 }
360 #endif
361
362 #if 0
363 static uint32_t ecosflash_address(struct flash_bank *bank, uint32_t address)
364 {
365 uint32_t retval = 0;
366 switch (bank->bus_width)
367 {
368 case 4:
369 retval = address & 0xfffffffc;
370 case 2:
371 retval = address & 0xfffffffe;
372 case 1:
373 retval = address;
374 }
375
376 return retval + bank->base;
377 }
378 #endif
379
380 static int ecosflash_erase(struct flash_bank *bank, int first, int last)
381 {
382 struct flash_bank *c = bank;
383 struct ecosflash_flash_bank *info = bank->driver_priv;
384 return eCosBoard_erase(info, c->base + first*sectorSize, sectorSize*(last-first + 1));
385 }
386
387 static int ecosflash_protect(struct flash_bank *bank, int set, int first, int last)
388 {
389 return ERROR_OK;
390 }
391
392 static int ecosflash_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
393 {
394 struct ecosflash_flash_bank *info = bank->driver_priv;
395 struct flash_bank *c = bank;
396 return eCosBoard_flash(info, buffer, c->base + offset, count);
397 }
398
399 static int ecosflash_protect_check(struct flash_bank *bank)
400 {
401 return ERROR_OK;
402 }
403
404 static int ecosflash_info(struct flash_bank *bank, char *buf, int buf_size)
405 {
406 struct ecosflash_flash_bank *info = bank->driver_priv;
407 snprintf(buf, buf_size, "eCos flash driver: %s", info->driverPath);
408 return ERROR_OK;
409 }
410
411 #if 0
412 static uint32_t ecosflash_get_flash_status(struct flash_bank *bank)
413 {
414 return ERROR_OK;
415 }
416
417 static void ecosflash_set_flash_mode(struct flash_bank *bank,int mode)
418 {
419
420 }
421
422 static uint32_t ecosflash_wait_status_busy(struct flash_bank *bank, uint32_t waitbits, int timeout)
423 {
424 return ERROR_OK;
425 }
426
427 static int ecosflash_handle_gpnvm_command(struct command_context *cmd_ctx, char *cmd, char **args, int argc)
428 {
429 return ERROR_OK;
430 }
431 #endif
432
433 struct flash_driver ecosflash_flash = {
434 .name = "ecosflash",
435 .flash_bank_command = &ecosflash_flash_bank_command,
436 .erase = &ecosflash_erase,
437 .protect = &ecosflash_protect,
438 .write = &ecosflash_write,
439 .probe = &ecosflash_probe,
440 .auto_probe = &ecosflash_probe,
441 .erase_check = &default_flash_blank_check,
442 .protect_check = &ecosflash_protect_check,
443 .info = &ecosflash_info
444 };
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