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build: remove clang unused variable assignment warnings
[openocd/jflash.git] / src / flash / nor / fm3.c
blob583ba22c4ec1fb7db80710e48cbc50ebd6eccfd1
1 /***************************************************************************
2 * Copyright (C) 2011 by Marc Willam, Holger Wech *
3 * openOCD.fseu(AT)de.fujitsu.com *
4 * Copyright (C) 2011 Ronny Strutz *
5 * *
6 * This program is free software; you can redistribute it and/or modify *
7 * it under the terms of the GNU General Public License as published by *
8 * the Free Software Foundation; either version 2 of the License, or *
9 * (at your option) any later version. *
10 * *
11 * This program is distributed in the hope that it will be useful, *
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
14 * GNU General Public License for more details. *
15 * *
16 * You should have received a copy of the GNU General Public License *
17 * along with this program; if not, write to the *
18 * Free Software Foundation, Inc., *
19 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
20 ***************************************************************************/
21
22 #ifdef HAVE_CONFIG_H
23 #include "config.h"
24 #endif
25
26 #include "imp.h"
27 #include <helper/binarybuffer.h>
28 #include <target/algorithm.h>
29 #include <target/armv7m.h>
30
31 #define FLASH_DQ6 0x00000040 /* Data toggle flag bit (TOGG) position */
32 #define FLASH_DQ5 0x00000020 /* Time limit exceeding flag bit (TLOV) position */
33
34 enum fm3_variant {
35 mb9bfxx1, /* Flash Type '1' */
36 mb9bfxx2,
37 mb9bfxx3,
38 mb9bfxx4,
39 mb9bfxx5,
40 mb9bfxx6,
41 mb9afxx1, /* Flash Type '2' */
42 mb9afxx2,
43 mb9afxx3,
44 mb9afxx4,
45 mb9afxx5,
46 mb9afxx6
47 };
48
49 enum fm3_flash_type {
50 fm3_no_flash_type = 0,
51 fm3_flash_type1 = 1,
52 fm3_flash_type2 = 2
53 };
54
55 struct fm3_flash_bank {
56 struct working_area *write_algorithm;
57 enum fm3_variant variant;
58 enum fm3_flash_type flashtype;
59 int probed;
60 };
61
62 FLASH_BANK_COMMAND_HANDLER(fm3_flash_bank_command)
63 {
64 struct fm3_flash_bank *fm3_info;
65
66 if (CMD_ARGC < 6)
67 return ERROR_COMMAND_SYNTAX_ERROR;
68
69 fm3_info = malloc(sizeof(struct fm3_flash_bank));
70 bank->driver_priv = fm3_info;
71
72 /* Flash type '1' */
73 if (strcmp(CMD_ARGV[5], "mb9bfxx1.cpu") == 0) {
74 fm3_info->variant = mb9bfxx1;
75 fm3_info->flashtype = fm3_flash_type1;
76 } else if (strcmp(CMD_ARGV[5], "mb9bfxx2.cpu") == 0) {
77 fm3_info->variant = mb9bfxx2;
78 fm3_info->flashtype = fm3_flash_type1;
79 } else if (strcmp(CMD_ARGV[5], "mb9bfxx3.cpu") == 0) {
80 fm3_info->variant = mb9bfxx3;
81 fm3_info->flashtype = fm3_flash_type1;
82 } else if (strcmp(CMD_ARGV[5], "mb9bfxx4.cpu") == 0) {
83 fm3_info->variant = mb9bfxx4;
84 fm3_info->flashtype = fm3_flash_type1;
85 } else if (strcmp(CMD_ARGV[5], "mb9bfxx5.cpu") == 0) {
86 fm3_info->variant = mb9bfxx5;
87 fm3_info->flashtype = fm3_flash_type1;
88 } else if (strcmp(CMD_ARGV[5], "mb9bfxx6.cpu") == 0) {
89 fm3_info->variant = mb9bfxx6;
90 fm3_info->flashtype = fm3_flash_type1;
91 } else if (strcmp(CMD_ARGV[5], "mb9afxx1.cpu") == 0) { /* Flash type '2' */
92 fm3_info->variant = mb9afxx1;
93 fm3_info->flashtype = fm3_flash_type2;
94 } else if (strcmp(CMD_ARGV[5], "mb9afxx2.cpu") == 0) {
95 fm3_info->variant = mb9afxx2;
96 fm3_info->flashtype = fm3_flash_type2;
97 } else if (strcmp(CMD_ARGV[5], "mb9afxx3.cpu") == 0) {
98 fm3_info->variant = mb9afxx3;
99 fm3_info->flashtype = fm3_flash_type2;
100 } else if (strcmp(CMD_ARGV[5], "mb9afxx4.cpu") == 0) {
101 fm3_info->variant = mb9afxx4;
102 fm3_info->flashtype = fm3_flash_type2;
103 } else if (strcmp(CMD_ARGV[5], "mb9afxx5.cpu") == 0) {
104 fm3_info->variant = mb9afxx5;
105 fm3_info->flashtype = fm3_flash_type2;
106 } else if (strcmp(CMD_ARGV[5], "mb9afxx6.cpu") == 0) {
107 fm3_info->variant = mb9afxx6;
108 fm3_info->flashtype = fm3_flash_type2;
109 }
110
111 /* unknown Flash type */
112 else {
113 LOG_ERROR("unknown fm3 variant: %s", CMD_ARGV[5]);
114 free(fm3_info);
115 return ERROR_FLASH_BANK_INVALID;
116 }
117
118 fm3_info->write_algorithm = NULL;
119 fm3_info->probed = 0;
120
121 return ERROR_OK;
122 }
123
124 /* Data polling algorithm */
125 static int fm3_busy_wait(struct target *target, uint32_t offset, int timeout_ms)
126 {
127 int retval = ERROR_OK;
128 uint16_t state1, state2;
129 int ms = 0;
130
131 /* While(1) loop exit via "break" and "return" on error */
132 while (1) {
133 /* dummy-read - see flash manual */
134 retval = target_read_u16(target, offset, &state1);
135 if (retval != ERROR_OK)
136 return retval;
137
138 /* Data polling 1 */
139 retval = target_read_u16(target, offset, &state1);
140 if (retval != ERROR_OK)
141 return retval;
142
143 /* Data polling 2 */
144 retval = target_read_u16(target, offset, &state2);
145 if (retval != ERROR_OK)
146 return retval;
147
148 /* Flash command finished via polled data equal? */
149 if ((state1 & FLASH_DQ6) == (state2 & FLASH_DQ6))
150 break;
151 /* Timeout Flag? */
152 else if (state1 & FLASH_DQ5) {
153 /* Retry data polling */
154
155 /* Data polling 1 */
156 retval = target_read_u16(target, offset, &state1);
157 if (retval != ERROR_OK)
158 return retval;
159
160 /* Data polling 2 */
161 retval = target_read_u16(target, offset, &state2);
162 if (retval != ERROR_OK)
163 return retval;
164
165 /* Flash command finished via polled data equal? */
166 if ((state1 & FLASH_DQ6) != (state2 & FLASH_DQ6))
167 return ERROR_FLASH_OPERATION_FAILED;
168
169 /* finish anyway */
170 break;
171 }
172 usleep(1000);
173 ++ms;
174
175 /* Polling time exceeded? */
176 if (ms > timeout_ms) {
177 LOG_ERROR("Polling data reading timed out!");
178 return ERROR_FLASH_OPERATION_FAILED;
179 }
180 }
181
182 if (retval == ERROR_OK)
183 LOG_DEBUG("fm3_busy_wait(%x) needs about %d ms", offset, ms);
184
185 return retval;
186 }
187
188 static int fm3_erase(struct flash_bank *bank, int first, int last)
189 {
190 struct fm3_flash_bank *fm3_info = bank->driver_priv;
191 struct target *target = bank->target;
192 int retval = ERROR_OK;
193 uint32_t u32DummyRead;
194 int sector, odd;
195 uint32_t u32FlashType;
196 uint32_t u32FlashSeqAddress1;
197 uint32_t u32FlashSeqAddress2;
198
199 u32FlashType = (uint32_t) fm3_info->flashtype;
200
201 if (u32FlashType == fm3_flash_type1) {
202 u32FlashSeqAddress1 = 0x00001550;
203 u32FlashSeqAddress2 = 0x00000AA8;
204 } else if (u32FlashType == fm3_flash_type2) {
205 u32FlashSeqAddress1 = 0x00000AA8;
206 u32FlashSeqAddress2 = 0x00000554;
207 } else {
208 LOG_ERROR("Flash/Device type unknown!");
209 return ERROR_FLASH_OPERATION_FAILED;
210 }
211
212 if (target->state != TARGET_HALTED) {
213 LOG_ERROR("Target not halted");
214 return ERROR_TARGET_NOT_HALTED;
215 }
216
217 LOG_INFO("Fujitsu MB9Bxxx: Sector Erase ... (%d to %d)", first, last);
218
219 /* FASZR = 0x01, Enables CPU Programming Mode (16-bit Flash acccess) */
220 retval = target_write_u32(target, 0x40000000, 0x0001);
221 if (retval != ERROR_OK)
222 return retval;
223
224 /* dummy read of FASZR */
225 retval = target_read_u32(target, 0x40000000, &u32DummyRead);
226 if (retval != ERROR_OK)
227 return retval;
228
229 for (sector = first ; sector <= last ; sector++) {
230 uint32_t offset = bank->sectors[sector].offset;
231
232 for (odd = 0; odd < 2 ; odd++) {
233 if (odd)
234 offset += 4;
235
236 /* Flash unlock sequence */
237 retval = target_write_u16(target, u32FlashSeqAddress1, 0x00AA);
238 if (retval != ERROR_OK)
239 return retval;
240
241 retval = target_write_u16(target, u32FlashSeqAddress2, 0x0055);
242 if (retval != ERROR_OK)
243 return retval;
244
245 retval = target_write_u16(target, u32FlashSeqAddress1, 0x0080);
246 if (retval != ERROR_OK)
247 return retval;
248
249 retval = target_write_u16(target, u32FlashSeqAddress1, 0x00AA);
250 if (retval != ERROR_OK)
251 return retval;
252
253 retval = target_write_u16(target, u32FlashSeqAddress2, 0x0055);
254 if (retval != ERROR_OK)
255 return retval;
256
257 /* Sector erase command (0x0030) */
258 retval = target_write_u16(target, offset, 0x0030);
259 if (retval != ERROR_OK)
260 return retval;
261
262 retval = fm3_busy_wait(target, offset, 500);
263 if (retval != ERROR_OK)
264 return retval;
265 }
266 bank->sectors[sector].is_erased = 1;
267 }
268
269 /* FASZR = 0x02, Enables CPU Run Mode (32-bit Flash acccess) */
270 retval = target_write_u32(target, 0x40000000, 0x0002);
271 if (retval != ERROR_OK)
272 return retval;
273
274 retval = target_read_u32(target, 0x40000000, &u32DummyRead); /* dummy read of FASZR */
275
276 return retval;
277 }
278
279 static int fm3_write_block(struct flash_bank *bank, uint8_t *buffer,
280 uint32_t offset, uint32_t count)
281 {
282 struct fm3_flash_bank *fm3_info = bank->driver_priv;
283 struct target *target = bank->target;
284 uint32_t buffer_size = 2048; /* 8192 for MB9Bxx6! */
285 struct working_area *source;
286 uint32_t address = bank->base + offset;
287 struct reg_param reg_params[6];
288 struct armv7m_algorithm armv7m_info;
289 int retval = ERROR_OK;
290 uint32_t u32FlashType;
291 uint32_t u32FlashSeqAddress1;
292 uint32_t u32FlashSeqAddress2;
293
294 u32FlashType = (uint32_t) fm3_info->flashtype;
295
296 if (u32FlashType == fm3_flash_type1) {
297 u32FlashSeqAddress1 = 0x00001550;
298 u32FlashSeqAddress2 = 0x00000AA8;
299 } else if (u32FlashType == fm3_flash_type2) {
300 u32FlashSeqAddress1 = 0x00000AA8;
301 u32FlashSeqAddress2 = 0x00000554;
302 } else {
303 LOG_ERROR("Flash/Device type unknown!");
304 return ERROR_FLASH_OPERATION_FAILED;
305 }
306
307 /* RAMCODE used for fm3 Flash programming: */
308 /* R0 keeps source start address (u32Source) */
309 /* R1 keeps target start address (u32Target) */
310 /* R2 keeps number of halfwords to write (u32Count) */
311 /* R3 keeps Flash Sequence address 1 (u32FlashSeq1) */
312 /* R4 keeps Flash Sequence address 2 (u32FlashSeq2) */
313 /* R5 returns result value (u32FlashResult) */
314
315 const uint8_t fm3_flash_write_code[] = {
316 /* fm3_FLASH_IF->FASZ &= 0xFFFD; */
317 0x5F, 0xF0, 0x80, 0x45, /* MOVS.W R5, #(fm3_FLASH_IF->FASZ) */
318 0x2D, 0x68, /* LDR R5, [R5] */
319 0x4F, 0xF6, 0xFD, 0x76, /* MOVW R6, #0xFFFD */
320 0x35, 0x40, /* ANDS R5, R5, R6 */
321 0x5F, 0xF0, 0x80, 0x46, /* MOVS.W R6, #(fm3_FLASH_IF->FASZ) */
322 0x35, 0x60, /* STR R5, [R6] */
323 /* fm3_FLASH_IF->FASZ |= 1; */
324 0x5F, 0xF0, 0x80, 0x45, /* MOVS.W R5, #(fm3_FLASH_IF->FASZ) */
325 0x2D, 0x68, /* LDR R5, [R3] */
326 0x55, 0xF0, 0x01, 0x05, /* ORRS.W R5, R5, #1 */
327 0x5F, 0xF0, 0x80, 0x46, /* MOVS.W R6, #(fm3_FLASH_IF->FASZ) */
328 0x35, 0x60, /* STR R5, [R6] */
329 /* u32DummyRead = fm3_FLASH_IF->FASZ; */
330 0x28, 0x4D, /* LDR.N R5, ??u32DummyRead */
331 0x5F, 0xF0, 0x80, 0x46, /* MOVS.W R6, #(fm3_FLASH_IF->FASZ) */
332 0x36, 0x68, /* LDR R6, [R6] */
333 0x2E, 0x60, /* STR R6, [R5] */
334 /* u32FlashResult = FLASH_WRITE_NO_RESULT */
335 0x26, 0x4D, /* LDR.N R5, ??u32FlashResult */
336 0x00, 0x26, /* MOVS R6, #0 */
337 0x2E, 0x60, /* STR R6, [R5] */
338 /* while ((u32Count > 0 ) */
339 /* && (u32FlashResult */
340 /* == FLASH_WRITE_NO_RESULT)) */
341 0x01, 0x2A, /* L0: CMP R2, #1 */
342 0x2C, 0xDB, /* BLT.N L1 */
343 0x24, 0x4D, /* LDR.N R5, ??u32FlashResult */
344 0x2D, 0x68, /* LDR R5, [R5] */
345 0x00, 0x2D, /* CMP R5, #0 */
346 0x28, 0xD1, /* BNE.N L1 */
347 /* *u32FlashSeq1 = FLASH_WRITE_1; */
348 0xAA, 0x25, /* MOVS R5, #0xAA */
349 0x1D, 0x60, /* STR R5, [R3] */
350 /* *u32FlashSeq2 = FLASH_WRITE_2; */
351 0x55, 0x25, /* MOVS R5, #0x55 */
352 0x25, 0x60, /* STR R5, [R4] */
353 /* *u32FlashSeq1 = FLASH_WRITE_3; */
354 0xA0, 0x25, /* MOVS R5, #0xA0 */
355 0x1D, 0x60, /* STRH R5, [R3] */
356 /* *(volatile uint16_t*)u32Target */
357 /* = *(volatile uint16_t*)u32Source; */
358 0x05, 0x88, /* LDRH R5, [R0] */
359 0x0D, 0x80, /* STRH R5, [R1] */
360 /* while (u32FlashResult */
361 /* == FLASH_WRITE_NO_RESTULT) */
362 0x1E, 0x4D, /* L2: LDR.N R5, ??u32FlashResult */
363 0x2D, 0x68, /* LDR R5, [R5] */
364 0x00, 0x2D, /* CMP R5, #0 */
365 0x11, 0xD1, /* BNE.N L3 */
366 /* if ((*(volatile uint16_t*)u32Target */
367 /* & FLASH_DQ5) == FLASH_DQ5) */
368 0x0D, 0x88, /* LDRH R5, [R1] */
369 0xAD, 0x06, /* LSLS R5, R5, #0x1A */
370 0x02, 0xD5, /* BPL.N L4 */
371 /* u32FlashResult = FLASH_WRITE_TIMEOUT */
372 0x1A, 0x4D, /* LDR.N R5, ??u32FlashResult */
373 0x02, 0x26, /* MOVS R6, #2 */
374 0x2E, 0x60, /* STR R6, [R5] */
375 /* if ((*(volatile uint16_t *)u32Target */
376 /* & FLASH_DQ7) */
377 /* == (*(volatile uint16_t*)u32Source */
378 /* & FLASH_DQ7)) */
379 0x0D, 0x88, /* L4: LDRH R5, [R1] */
380 0x15, 0xF0, 0x80, 0x05, /* ANDS.W R5, R5, #0x80 */
381 0x06, 0x88, /* LDRH R6, [R0] */
382 0x16, 0xF0, 0x80, 0x06, /* ANDS.W R6, R6, #0x80 */
383 0xB5, 0x42, /* CMP R5, R6 */
384 0xED, 0xD1, /* BNE.N L2 */
385 /* u32FlashResult = FLASH_WRITE_OKAY */
386 0x15, 0x4D, /* LDR.N R5, ??u32FlashResult */
387 0x01, 0x26, /* MOVS R6, #1 */
388 0x2E, 0x60, /* STR R6, [R5] */
389 0xE9, 0xE7, /* B.N L2 */
390 /* if (u32FlashResult */
391 /* != FLASH_WRITE_TIMEOUT) */
392 0x13, 0x4D, /* LDR.N R5, ??u32FlashResult */
393 0x2D, 0x68, /* LDR R5, [R5] */
394 0x02, 0x2D, /* CMP R5, #2 */
395 0x02, 0xD0, /* BEQ.N L5 */
396 /* u32FlashResult = FLASH_WRITE_NO_RESULT */
397 0x11, 0x4D, /* LDR.N R5, ??u32FlashResult */
398 0x00, 0x26, /* MOVS R6, #0 */
399 0x2E, 0x60, /* STR R6, [R5] */
400 /* u32Count--; */
401 0x52, 0x1E, /* L5: SUBS R2, R2, #1 */
402 /* u32Source += 2; */
403 0x80, 0x1C, /* ADDS R0, R0, #2 */
404 /* u32Target += 2; */
405 0x89, 0x1C, /* ADDS R1, R1, #2 */
406 0xD0, 0xE7, /* B.N L0 */
407 /* fm3_FLASH_IF->FASZ &= 0xFFFE; */
408 0x5F, 0xF0, 0x80, 0x45, /* L1: MOVS.W R5, #(fm3_FLASH_IF->FASZ) */
409 0x2D, 0x68, /* LDR R5, [R5] */
410 0x4F, 0xF6, 0xFE, 0x76, /* MOVW R6, #0xFFFE */
411 0x35, 0x40, /* ANDS R5, R5, R6 */
412 0x5F, 0xF0, 0x80, 0x46, /* MOVS.W R6, #(fm3_FLASH_IF->FASZ) */
413 0x35, 0x60, /* STR R5, [R6] */
414 /* fm3_FLASH_IF->FASZ |= 2; */
415 0x5F, 0xF0, 0x80, 0x45, /* MOVS.W R5, #(fm3_FLASH_IF->FASZ) */
416 0x2D, 0x68, /* LDR R5, [R5] */
417 0x55, 0xF0, 0x02, 0x05, /* ORRS.W R5, R5, #2 */
418 0x5F, 0xF0, 0x80, 0x46, /* MOVS.W R6, #(fm3_FLASH_IF->FASZ) */
419 0x35, 0x60, /* STR R5, [R6] */
420 /* u32DummyRead = fm3_FLASH_IF->FASZ; */
421 0x04, 0x4D, /* LDR.N R5, ??u32DummyRead */
422 0x5F, 0xF0, 0x80, 0x46, /* MOVS.W R6, #(fm3_FLASH_IF->FASZ) */
423 0x36, 0x68, /* LDR R6, [R6] */
424 0x2E, 0x60, /* STR R6, [R5] */
425 /* copy u32FlashResult to R3 for return */
426 /* value */
427 0xDF, 0xF8, 0x08, 0x50, /* LDR.W R5, ??u32FlashResult */
428 0x2D, 0x68, /* LDR R5, [R5] */
429 /* Breakpoint here */
430 0x00, 0xBE, /* BKPT #0 */
431
432 /* The following address pointers assume, that the code is running from */
433 /* address 0x1FFF8008. These address pointers will be patched, if a */
434 /* different start address in RAM is used (e.g. for Flash type 2)! */
435 0x00, 0x80, 0xFF, 0x1F, /* u32DummyRead address in RAM (0x1FFF8000) */
436 0x04, 0x80, 0xFF, 0x1F /* u32FlashResult address in RAM (0x1FFF8004) */
437 };
438
439 LOG_INFO("Fujitsu MB9B500: FLASH Write ...");
440
441 /* disable HW watchdog */
442 retval = target_write_u32(target, 0x40011C00, 0x1ACCE551);
443 if (retval != ERROR_OK)
444 return retval;
445
446 retval = target_write_u32(target, 0x40011C00, 0xE5331AAE);
447 if (retval != ERROR_OK)
448 return retval;
449
450 retval = target_write_u32(target, 0x40011008, 0x00000000);
451 if (retval != ERROR_OK)
452 return retval;
453
454 count = count / 2; /* number bytes -> number halfwords */
455
456 /* check code alignment */
457 if (offset & 0x1) {
458 LOG_WARNING("offset 0x%" PRIx32 " breaks required 2-byte alignment", offset);
459 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
460 }
461
462 /* allocate working area with flash programming code */
463 if (target_alloc_working_area(target, sizeof(fm3_flash_write_code),
464 &fm3_info->write_algorithm) != ERROR_OK) {
465 LOG_WARNING("no working area available, can't do block memory writes");
466 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
467 }
468
469 retval = target_write_buffer(target, fm3_info->write_algorithm->address,
470 sizeof(fm3_flash_write_code), fm3_flash_write_code);
471 if (retval != ERROR_OK)
472 return retval;
473
474
475
476 /* memory buffer */
477 while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK) {
478 buffer_size /= 2;
479 if (buffer_size <= 256) {
480 /* free working area, if write algorithm already allocated */
481 if (fm3_info->write_algorithm)
482 target_free_working_area(target, fm3_info->write_algorithm);
483
484 LOG_WARNING("No large enough working area available, can't do block memory writes");
485 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
486 }
487 }
488
489 armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
490 armv7m_info.core_mode = ARMV7M_MODE_ANY;
491
492 init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT); /* source start address */
493 init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT); /* target start address */
494 init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT); /* number of halfwords to program */
495 init_reg_param(&reg_params[3], "r3", 32, PARAM_OUT); /* Flash Sequence address 1 */
496 init_reg_param(&reg_params[4], "r4", 32, PARAM_OUT); /* Flash Sequence address 1 */
497 init_reg_param(&reg_params[5], "r5", 32, PARAM_IN); /* result */
498
499 /* write code buffer and use Flash programming code within fm3 */
500 /* Set breakpoint to 0 with time-out of 1000 ms */
501 while (count > 0) {
502 uint32_t thisrun_count = (count > (buffer_size / 2)) ? (buffer_size / 2) : count;
503
504 retval = target_write_buffer(target, fm3_info->write_algorithm->address, 8,
505 fm3_flash_write_code);
506 if (retval != ERROR_OK)
507 break;
508
509 /* Patching 'local variable address' for different RAM addresses */
510 if (fm3_info->write_algorithm->address != 0x1FFF8008) {
511 /* Algorithm: u32DummyRead: */
512 retval = target_write_u32(target, (fm3_info->write_algorithm->address)
513 + sizeof(fm3_flash_write_code) - 8, (fm3_info->write_algorithm->address) - 8);
514 if (retval != ERROR_OK)
515 break;
516
517 /* Algorithm: u32FlashResult: */
518 retval = target_write_u32(target, (fm3_info->write_algorithm->address)
519 + sizeof(fm3_flash_write_code) - 4, (fm3_info->write_algorithm->address) - 4);
520 if (retval != ERROR_OK)
521 break;
522 }
523
524 retval = target_write_buffer(target, source->address, thisrun_count * 2, buffer);
525 if (retval != ERROR_OK)
526 break;
527
528 buf_set_u32(reg_params[0].value, 0, 32, source->address);
529 buf_set_u32(reg_params[1].value, 0, 32, address);
530 buf_set_u32(reg_params[2].value, 0, 32, thisrun_count);
531 buf_set_u32(reg_params[3].value, 0, 32, u32FlashSeqAddress1);
532 buf_set_u32(reg_params[4].value, 0, 32, u32FlashSeqAddress2);
533
534 retval = target_run_algorithm(target, 0, NULL, 6, reg_params,
535 fm3_info->write_algorithm->address, 0, 1000, &armv7m_info);
536 if (retval != ERROR_OK) {
537 LOG_ERROR("Error executing fm3 Flash programming algorithm");
538 retval = ERROR_FLASH_OPERATION_FAILED;
539 break;
540 }
541
542 if (buf_get_u32(reg_params[5].value, 0, 32) != ERROR_OK) {
543 LOG_ERROR("Fujitsu MB9[A/B]FXXX: Flash programming ERROR (Timeout) -> Reg R3: %x",
544 buf_get_u32(reg_params[5].value, 0, 32));
545 retval = ERROR_FLASH_OPERATION_FAILED;
546 break;
547 }
548
549 buffer += thisrun_count * 2;
550 address += thisrun_count * 2;
551 count -= thisrun_count;
552 }
553
554 target_free_working_area(target, source);
555 target_free_working_area(target, fm3_info->write_algorithm);
556
557 destroy_reg_param(&reg_params[0]);
558 destroy_reg_param(&reg_params[1]);
559 destroy_reg_param(&reg_params[2]);
560 destroy_reg_param(&reg_params[3]);
561 destroy_reg_param(&reg_params[4]);
562 destroy_reg_param(&reg_params[5]);
563
564 return retval;
565 }
566
567 static int fm3_probe(struct flash_bank *bank)
568 {
569 struct fm3_flash_bank *fm3_info = bank->driver_priv;
570 uint16_t num_pages;
571
572 if (bank->target->state != TARGET_HALTED) {
573 LOG_ERROR("Target not halted");
574 return ERROR_TARGET_NOT_HALTED;
575 }
576
577 num_pages = 6; /* max number of Flash pages for malloc */
578 fm3_info->probed = 0;
579
580 bank->sectors = malloc(sizeof(struct flash_sector) * num_pages);
581 bank->base = 0x00000000;
582 bank->size = 32 * 1024; /* bytes */
583
584 bank->sectors[0].offset = 0;
585 bank->sectors[0].size = 16 * 1024;
586 bank->sectors[0].is_erased = -1;
587 bank->sectors[0].is_protected = -1;
588
589 bank->sectors[1].offset = 0x4000;
590 bank->sectors[1].size = 16 * 1024;
591 bank->sectors[1].is_erased = -1;
592 bank->sectors[1].is_protected = -1;
593
594 if ((fm3_info->variant == mb9bfxx1)
595 || (fm3_info->variant == mb9afxx1)) {
596 num_pages = 3;
597 bank->size = 64 * 1024; /* bytes */
598 bank->num_sectors = num_pages;
599
600 bank->sectors[2].offset = 0x8000;
601 bank->sectors[2].size = 32 * 1024;
602 bank->sectors[2].is_erased = -1;
603 bank->sectors[2].is_protected = -1;
604 }
605
606 if ((fm3_info->variant == mb9bfxx2)
607 || (fm3_info->variant == mb9bfxx4)
608 || (fm3_info->variant == mb9bfxx5)
609 || (fm3_info->variant == mb9bfxx6)
610 || (fm3_info->variant == mb9afxx2)
611 || (fm3_info->variant == mb9afxx4)
612 || (fm3_info->variant == mb9afxx5)
613 || (fm3_info->variant == mb9afxx6)) {
614 num_pages = 3;
615 bank->size = 128 * 1024; /* bytes */
616 bank->num_sectors = num_pages;
617
618 bank->sectors[2].offset = 0x8000;
619 bank->sectors[2].size = 96 * 1024;
620 bank->sectors[2].is_erased = -1;
621 bank->sectors[2].is_protected = -1;
622 }
623
624 if ((fm3_info->variant == mb9bfxx4)
625 || (fm3_info->variant == mb9bfxx5)
626 || (fm3_info->variant == mb9bfxx6)
627 || (fm3_info->variant == mb9afxx4)
628 || (fm3_info->variant == mb9afxx5)
629 || (fm3_info->variant == mb9afxx6)) {
630 num_pages = 4;
631 bank->size = 256 * 1024; /* bytes */
632 bank->num_sectors = num_pages;
633
634 bank->sectors[3].offset = 0x20000;
635 bank->sectors[3].size = 128 * 1024;
636 bank->sectors[3].is_erased = -1;
637 bank->sectors[3].is_protected = -1;
638 }
639
640 if ((fm3_info->variant == mb9bfxx5)
641 || (fm3_info->variant == mb9bfxx6)
642 || (fm3_info->variant == mb9afxx5)
643 || (fm3_info->variant == mb9afxx6)) {
644 num_pages = 5;
645 bank->size = 384 * 1024; /* bytes */
646 bank->num_sectors = num_pages;
647
648 bank->sectors[4].offset = 0x40000;
649 bank->sectors[4].size = 128 * 1024;
650 bank->sectors[4].is_erased = -1;
651 bank->sectors[4].is_protected = -1;
652 }
653
654 if ((fm3_info->variant == mb9bfxx6)
655 || (fm3_info->variant == mb9afxx6)) {
656 num_pages = 6;
657 bank->size = 512 * 1024; /* bytes */
658 bank->num_sectors = num_pages;
659
660 bank->sectors[5].offset = 0x60000;
661 bank->sectors[5].size = 128 * 1024;
662 bank->sectors[5].is_erased = -1;
663 bank->sectors[5].is_protected = -1;
664 }
665
666 fm3_info->probed = 1;
667
668 return ERROR_OK;
669 }
670
671 static int fm3_auto_probe(struct flash_bank *bank)
672 {
673 struct fm3_flash_bank *fm3_info = bank->driver_priv;
674 if (fm3_info->probed)
675 return ERROR_OK;
676 return fm3_probe(bank);
677 }
678
679 static int fm3_info(struct flash_bank *bank, char *buf, int buf_size)
680 {
681 snprintf(buf, buf_size, "Fujitsu fm3 Device does not support Chip-ID (Type unknown)");
682 return ERROR_OK;
683 }
684
685 /* Chip erase */
686 static int fm3_chip_erase(struct flash_bank *bank)
687 {
688 struct target *target = bank->target;
689 struct fm3_flash_bank *fm3_info2 = bank->driver_priv;
690 int retval = ERROR_OK;
691 uint32_t u32DummyRead;
692 uint32_t u32FlashType;
693 uint32_t u32FlashSeqAddress1;
694 uint32_t u32FlashSeqAddress2;
695
696 u32FlashType = (uint32_t) fm3_info2->flashtype;
697
698 if (u32FlashType == fm3_flash_type1) {
699 LOG_INFO("*** Erasing mb9bfxxx type");
700 u32FlashSeqAddress1 = 0x00001550;
701 u32FlashSeqAddress2 = 0x00000AA8;
702 } else if (u32FlashType == fm3_flash_type2) {
703 LOG_INFO("*** Erasing mb9afxxx type");
704 u32FlashSeqAddress1 = 0x00000AA8;
705 u32FlashSeqAddress2 = 0x00000554;
706 } else {
707 LOG_ERROR("Flash/Device type unknown!");
708 return ERROR_FLASH_OPERATION_FAILED;
709 }
710
711 if (target->state != TARGET_HALTED) {
712 LOG_ERROR("Target not halted");
713 return ERROR_TARGET_NOT_HALTED;
714 }
715
716 LOG_INFO("Fujitsu MB9[AB]xxx: Chip Erase ... (may take several seconds)");
717
718 /* Implement Flash chip erase (mass erase) completely on host */
719
720 /* FASZR = 0x01, Enables CPU Programming Mode (16-bit Flash access) */
721 retval = target_write_u32(target, 0x40000000, 0x0001);
722 if (retval != ERROR_OK)
723 return retval;
724
725 /* dummy read of FASZR */
726 retval = target_read_u32(target, 0x40000000, &u32DummyRead);
727 if (retval != ERROR_OK)
728 return retval;
729
730 /* Flash unlock sequence */
731 retval = target_write_u16(target, u32FlashSeqAddress1, 0x00AA);
732 if (retval != ERROR_OK)
733 return retval;
734
735 retval = target_write_u16(target, u32FlashSeqAddress2, 0x0055);
736 if (retval != ERROR_OK)
737 return retval;
738
739 retval = target_write_u16(target, u32FlashSeqAddress1, 0x0080);
740 if (retval != ERROR_OK)
741 return retval;
742
743 retval = target_write_u16(target, u32FlashSeqAddress1, 0x00AA);
744 if (retval != ERROR_OK)
745 return retval;
746
747 retval = target_write_u16(target, u32FlashSeqAddress2, 0x0055);
748 if (retval != ERROR_OK)
749 return retval;
750
751 /* Chip Erase command (0x0010) */
752 retval = target_write_u16(target, u32FlashSeqAddress1, 0x0010);
753 if (retval != ERROR_OK)
754 return retval;
755
756 retval = fm3_busy_wait(target, u32FlashSeqAddress2, 20000); /* 20s timeout */
757 if (retval != ERROR_OK)
758 return retval;
759
760 /* FASZR = 0x02, Re-enables CPU Run Mode (32-bit Flash access) */
761 retval = target_write_u32(target, 0x40000000, 0x0002);
762 if (retval != ERROR_OK)
763 return retval;
764
765 retval = target_read_u32(target, 0x40000000, &u32DummyRead); /* dummy read of FASZR */
766
767 return retval;
768 }
769
770 COMMAND_HANDLER(fm3_handle_chip_erase_command)
771 {
772 int i;
773
774 if (CMD_ARGC < 1)
775 return ERROR_COMMAND_SYNTAX_ERROR;
776
777 struct flash_bank *bank;
778 int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
779 if (ERROR_OK != retval)
780 return retval;
781
782 if (fm3_chip_erase(bank) == ERROR_OK) {
783 /* set all sectors as erased */
784 for (i = 0; i < bank->num_sectors; i++)
785 bank->sectors[i].is_erased = 1;
786
787 command_print(CMD_CTX, "fm3 chip erase complete");
788 } else {
789 command_print(CMD_CTX, "fm3 chip erase failed");
790 }
791
792 return ERROR_OK;
793 }
794
795 static const struct command_registration fm3_exec_command_handlers[] = {
796 {
797 .name = "chip_erase",
798 .usage = "<bank>",
799 .handler = fm3_handle_chip_erase_command,
800 .mode = COMMAND_EXEC,
801 .help = "Erase entire Flash device.",
802 },
803 COMMAND_REGISTRATION_DONE
804 };
805
806 static const struct command_registration fm3_command_handlers[] = {
807 {
808 .name = "fm3",
809 .mode = COMMAND_ANY,
810 .help = "fm3 Flash command group",
811 .usage = "",
812 .chain = fm3_exec_command_handlers,
813 },
814 COMMAND_REGISTRATION_DONE
815 };
816
817 struct flash_driver fm3_flash = {
818 .name = "fm3",
819 .commands = fm3_command_handlers,
820 .flash_bank_command = fm3_flash_bank_command,
821 .erase = fm3_erase,
822 .write = fm3_write_block,
823 .probe = fm3_probe,
824 .auto_probe = fm3_auto_probe,
825 .erase_check = default_flash_mem_blank_check,
826 .info = fm3_info,
827 };
add intel's jflashmm functionality to openocd