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mpc86xx: Removed unused and unconfigured memory test code.
[people/ms/u-boot.git] / board / snmc / qs860t / flash.c
1 /*
2 * (C) Copyright 2003
3 * MuLogic B.V.
4 *
5 * (C) Copyright 2001
6 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * MA 02111-1307 USA
25 */
26
27 #include <common.h>
28 #include <ppc4xx.h>
29 #include <asm/u-boot.h>
30 #include <asm/processor.h>
31
32 flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
33
34
35 #ifdef CFG_FLASH_16BIT
36 #define FLASH_WORD_SIZE unsigned short
37 #define FLASH_ID_MASK 0xFFFF
38 #else
39 #define FLASH_WORD_SIZE unsigned long
40 #define FLASH_ID_MASK 0xFFFFFFFF
41 #endif
42
43 /*-----------------------------------------------------------------------
44 * Functions
45 */
46 /* stolen from esteem192e/flash.c */
47 ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info);
48
49 #ifndef CFG_FLASH_16BIT
50 static int write_word (flash_info_t *info, ulong dest, ulong data);
51 #else
52 static int write_short (flash_info_t *info, ulong dest, ushort data);
53 #endif
54 static void flash_get_offsets (ulong base, flash_info_t *info);
55
56
57 /*-----------------------------------------------------------------------
58 */
59
60 unsigned long flash_init (void)
61 {
62 unsigned long size_b0, size_b1;
63 int i;
64 uint pbcr;
65 unsigned long base_b0, base_b1;
66
67 /* Init: no FLASHes known */
68 for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
69 flash_info[i].flash_id = FLASH_UNKNOWN;
70 }
71
72 /* Static FLASH Bank configuration here - FIXME XXX */
73
74 size_b0 = flash_get_size((volatile FLASH_WORD_SIZE *)FLASH_BASE1_PRELIM, &flash_info[0]);
75
76 if (flash_info[0].flash_id == FLASH_UNKNOWN) {
77 printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
78 size_b0, size_b0<<20);
79 }
80
81 /* Only one bank */
82 if (CFG_MAX_FLASH_BANKS == 1)
83 {
84 /* Setup offsets */
85 flash_get_offsets (FLASH_BASE1_PRELIM, &flash_info[0]);
86
87 /* Monitor protection ON by default */
88 #if 0 /* sand: */
89 (void)flash_protect(FLAG_PROTECT_SET,
90 FLASH_BASE1_PRELIM-CFG_MONITOR_LEN+size_b0,
91 FLASH_BASE1_PRELIM-1+size_b0,
92 &flash_info[0]);
93 #else
94 (void)flash_protect(FLAG_PROTECT_SET,
95 CFG_MONITOR_BASE,
96 CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
97 &flash_info[0]);
98 #endif
99 size_b1 = 0 ;
100 flash_info[0].size = size_b0;
101 }
102 /* 2 banks */
103 else
104 {
105 size_b1 = flash_get_size((volatile FLASH_WORD_SIZE *)FLASH_BASE1_PRELIM, &flash_info[1]);
106
107 /* Re-do sizing to get full correct info */
108 if (size_b1)
109 {
110 mtdcr(ebccfga, pb0cr);
111 pbcr = mfdcr(ebccfgd);
112 mtdcr(ebccfga, pb0cr);
113 base_b1 = -size_b1;
114 pbcr = (pbcr & 0x0001ffff) | base_b1 | (((size_b1/1024/1024)-1)<<17);
115 mtdcr(ebccfgd, pbcr);
116 }
117
118 if (size_b0)
119 {
120 mtdcr(ebccfga, pb1cr);
121 pbcr = mfdcr(ebccfgd);
122 mtdcr(ebccfga, pb1cr);
123 base_b0 = base_b1 - size_b0;
124 pbcr = (pbcr & 0x0001ffff) | base_b0 | (((size_b0/1024/1024)-1)<<17);
125 mtdcr(ebccfgd, pbcr);
126 }
127
128 size_b0 = flash_get_size((volatile FLASH_WORD_SIZE *)base_b0, &flash_info[0]);
129
130 flash_get_offsets (base_b0, &flash_info[0]);
131
132 /* monitor protection ON by default */
133 #if 0 /* sand: */
134 (void)flash_protect(FLAG_PROTECT_SET,
135 FLASH_BASE1_PRELIM-CFG_MONITOR_LEN+size_b0,
136 FLASH_BASE1_PRELIM-1+size_b0,
137 &flash_info[0]);
138 #else
139 (void)flash_protect(FLAG_PROTECT_SET,
140 CFG_MONITOR_BASE,
141 CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
142 &flash_info[0]);
143 #endif
144
145 if (size_b1) {
146 /* Re-do sizing to get full correct info */
147 size_b1 = flash_get_size((volatile FLASH_WORD_SIZE *)base_b1, &flash_info[1]);
148
149 flash_get_offsets (base_b1, &flash_info[1]);
150
151 /* monitor protection ON by default */
152 (void)flash_protect(FLAG_PROTECT_SET,
153 base_b1+size_b1-CFG_MONITOR_LEN,
154 base_b1+size_b1-1,
155 &flash_info[1]);
156 /* monitor protection OFF by default (one is enough) */
157 (void)flash_protect(FLAG_PROTECT_CLEAR,
158 base_b0+size_b0-CFG_MONITOR_LEN,
159 base_b0+size_b0-1,
160 &flash_info[0]);
161 } else {
162 flash_info[1].flash_id = FLASH_UNKNOWN;
163 flash_info[1].sector_count = -1;
164 }
165
166 flash_info[0].size = size_b0;
167 flash_info[1].size = size_b1;
168 }/* else 2 banks */
169 return (size_b0 + size_b1);
170 }
171
172
173 /*-----------------------------------------------------------------------
174 */
175
176 static void flash_get_offsets (ulong base, flash_info_t *info)
177 {
178 int i;
179
180 /* set up sector start adress table */
181 if ((info->flash_id & FLASH_TYPEMASK) == INTEL_ID_28F320J3A ||
182 (info->flash_id & FLASH_TYPEMASK) == INTEL_ID_28F640J3A ||
183 (info->flash_id & FLASH_TYPEMASK) == INTEL_ID_28F128J3A) {
184 for (i = 0; i < info->sector_count; i++) {
185 info->start[i] = base + (i * info->size/info->sector_count);
186 }
187 }
188 else if (info->flash_id & FLASH_BTYPE) {
189 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
190
191 #ifndef CFG_FLASH_16BIT
192 /* set sector offsets for bottom boot block type */
193 info->start[0] = base + 0x00000000;
194 info->start[1] = base + 0x00004000;
195 info->start[2] = base + 0x00008000;
196 info->start[3] = base + 0x0000C000;
197 info->start[4] = base + 0x00010000;
198 info->start[5] = base + 0x00014000;
199 info->start[6] = base + 0x00018000;
200 info->start[7] = base + 0x0001C000;
201 for (i = 8; i < info->sector_count; i++) {
202 info->start[i] = base + (i * 0x00020000) - 0x000E0000;
203 }
204 } else {
205 /* set sector offsets for bottom boot block type */
206 info->start[0] = base + 0x00000000;
207 info->start[1] = base + 0x00008000;
208 info->start[2] = base + 0x0000C000;
209 info->start[3] = base + 0x00010000;
210 for (i = 4; i < info->sector_count; i++) {
211 info->start[i] = base + (i * 0x00020000) - 0x00060000;
212 }
213 }
214 #else
215 /* set sector offsets for bottom boot block type */
216 info->start[0] = base + 0x00000000;
217 info->start[1] = base + 0x00002000;
218 info->start[2] = base + 0x00004000;
219 info->start[3] = base + 0x00006000;
220 info->start[4] = base + 0x00008000;
221 info->start[5] = base + 0x0000A000;
222 info->start[6] = base + 0x0000C000;
223 info->start[7] = base + 0x0000E000;
224 for (i = 8; i < info->sector_count; i++) {
225 info->start[i] = base + (i * 0x00010000) - 0x00070000;
226 }
227 } else {
228 /* set sector offsets for bottom boot block type */
229 info->start[0] = base + 0x00000000;
230 info->start[1] = base + 0x00004000;
231 info->start[2] = base + 0x00006000;
232 info->start[3] = base + 0x00008000;
233 for (i = 4; i < info->sector_count; i++) {
234 info->start[i] = base + (i * 0x00010000) - 0x00030000;
235 }
236 }
237 #endif
238 } else {
239 /* set sector offsets for top boot block type */
240 i = info->sector_count - 1;
241 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
242
243 #ifndef CFG_FLASH_16BIT
244 info->start[i--] = base + info->size - 0x00004000;
245 info->start[i--] = base + info->size - 0x00008000;
246 info->start[i--] = base + info->size - 0x0000C000;
247 info->start[i--] = base + info->size - 0x00010000;
248 info->start[i--] = base + info->size - 0x00014000;
249 info->start[i--] = base + info->size - 0x00018000;
250 info->start[i--] = base + info->size - 0x0001C000;
251 for (; i >= 0; i--) {
252 info->start[i] = base + i * 0x00020000;
253 }
254 } else {
255
256 info->start[i--] = base + info->size - 0x00008000;
257 info->start[i--] = base + info->size - 0x0000C000;
258 info->start[i--] = base + info->size - 0x00010000;
259 for (; i >= 0; i--) {
260 info->start[i] = base + i * 0x00020000;
261 }
262 }
263 #else
264 info->start[i--] = base + info->size - 0x00002000;
265 info->start[i--] = base + info->size - 0x00004000;
266 info->start[i--] = base + info->size - 0x00006000;
267 info->start[i--] = base + info->size - 0x00008000;
268 info->start[i--] = base + info->size - 0x0000A000;
269 info->start[i--] = base + info->size - 0x0000C000;
270 info->start[i--] = base + info->size - 0x0000E000;
271 for (; i >= 0; i--) {
272 info->start[i] = base + i * 0x00010000;
273 }
274 } else {
275 info->start[i--] = base + info->size - 0x00004000;
276 info->start[i--] = base + info->size - 0x00006000;
277 info->start[i--] = base + info->size - 0x00008000;
278 for (; i >= 0; i--) {
279 info->start[i] = base + i * 0x00010000;
280 }
281 }
282 #endif
283 }
284 }
285
286 /*-----------------------------------------------------------------------
287 */
288
289 void flash_print_info (flash_info_t *info)
290 {
291 int i;
292 uchar *boottype;
293 uchar botboot[]=", bottom boot sect)\n";
294 uchar topboot[]=", top boot sector)\n";
295
296 if (info->flash_id == FLASH_UNKNOWN) {
297 printf ("missing or unknown FLASH type\n");
298 return;
299 }
300
301 switch (info->flash_id & FLASH_VENDMASK) {
302 case FLASH_MAN_AMD: printf ("AMD "); break;
303 case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
304 case FLASH_MAN_SST: printf ("SST "); break;
305 case FLASH_MAN_STM: printf ("STM "); break;
306 case FLASH_MAN_INTEL: printf ("INTEL "); break;
307 default: printf ("Unknown Vendor "); break;
308 }
309
310 if (info->flash_id & 0x0001 ) {
311 boottype = botboot;
312 } else {
313 boottype = topboot;
314 }
315
316 switch (info->flash_id & FLASH_TYPEMASK) {
317 case FLASH_AM400B: printf ("AM29LV400B (4 Mbit%s",boottype);
318 break;
319 case FLASH_AM400T: printf ("AM29LV400T (4 Mbit%s",boottype);
320 break;
321 case FLASH_AM800B: printf ("AM29LV800B (8 Mbit%s",boottype);
322 break;
323 case FLASH_AM800T: printf ("AM29LV800T (8 Mbit%s",boottype);
324 break;
325 case FLASH_AM160B: printf ("AM29LV160B (16 Mbit%s",boottype);
326 break;
327 case FLASH_AM160T: printf ("AM29LV160T (16 Mbit%s",boottype);
328 break;
329 case FLASH_AM320B: printf ("AM29LV320B (32 Mbit%s",boottype);
330 break;
331 case FLASH_AM320T: printf ("AM29LV320T (32 Mbit%s",boottype);
332 break;
333 case FLASH_INTEL800B: printf ("INTEL28F800B (8 Mbit%s",boottype);
334 break;
335 case FLASH_INTEL800T: printf ("INTEL28F800T (8 Mbit%s",boottype);
336 break;
337 case FLASH_INTEL160B: printf ("INTEL28F160B (16 Mbit%s",boottype);
338 break;
339 case FLASH_INTEL160T: printf ("INTEL28F160T (16 Mbit%s",boottype);
340 break;
341 case FLASH_INTEL320B: printf ("INTEL28F320B (32 Mbit%s",boottype);
342 break;
343 case FLASH_INTEL320T: printf ("INTEL28F320T (32 Mbit%s",boottype);
344 break;
345 case FLASH_AMDL322T: printf ("AM29DL322T (32 Mbit%s",boottype);
346 break;
347
348 #if 0 /* enable when devices are available */
349
350 case FLASH_INTEL640B: printf ("INTEL28F640B (64 Mbit%s",boottype);
351 break;
352 case FLASH_INTEL640T: printf ("INTEL28F640T (64 Mbit%s",boottype);
353 break;
354 #endif
355 case INTEL_ID_28F320J3A: printf ("INTEL28F320JA3 (32 Mbit%s",boottype);
356 break;
357 case INTEL_ID_28F640J3A: printf ("INTEL28F640JA3 (64 Mbit%s",boottype);
358 break;
359 case INTEL_ID_28F128J3A: printf ("INTEL28F128JA3 (128 Mbit%s",boottype);
360 break;
361
362 default: printf ("Unknown Chip Type\n");
363 break;
364 }
365
366 printf (" Size: %ld MB in %d Sectors\n",
367 info->size >> 20, info->sector_count);
368
369 printf (" Sector Start Addresses:");
370 for (i=0; i<info->sector_count; ++i) {
371 if ((i % 5) == 0)
372 printf ("\n ");
373 printf (" %08lX%s",
374 info->start[i],
375 info->protect[i] ? " (RO)" : " "
376 );
377 }
378 printf ("\n");
379 return;
380 }
381
382
383 /*-----------------------------------------------------------------------
384 */
385
386
387 /*-----------------------------------------------------------------------
388 */
389
390 /*
391 * The following code cannot be run from FLASH!
392 */
393 ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info)
394 {
395 short i;
396 ulong base = (ulong)addr;
397 FLASH_WORD_SIZE value;
398
399 /* Write auto select command: read Manufacturer ID */
400
401
402 #ifndef CFG_FLASH_16BIT
403
404 /*
405 * Note: if it is an AMD flash and the word at addr[0000]
406 * is 0x00890089 this routine will think it is an Intel
407 * flash device and may(most likely) cause trouble.
408 */
409
410 addr[0x0000] = 0x00900090;
411 if(addr[0x0000] != 0x00890089){
412 addr[0x0555] = 0x00AA00AA;
413 addr[0x02AA] = 0x00550055;
414 addr[0x0555] = 0x00900090;
415 #else
416
417 /*
418 * Note: if it is an AMD flash and the word at addr[0000]
419 * is 0x0089 this routine will think it is an Intel
420 * flash device and may(most likely) cause trouble.
421 */
422
423 addr[0x0000] = 0x0090;
424
425 if(addr[0x0000] != 0x0089){
426 addr[0x0555] = 0x00AA;
427 addr[0x02AA] = 0x0055;
428 addr[0x0555] = 0x0090;
429 #endif
430 }
431 value = addr[0];
432
433 switch (value) {
434 case (AMD_MANUFACT & FLASH_ID_MASK):
435 info->flash_id = FLASH_MAN_AMD;
436 break;
437 case (FUJ_MANUFACT & FLASH_ID_MASK):
438 info->flash_id = FLASH_MAN_FUJ;
439 break;
440 case (STM_MANUFACT & FLASH_ID_MASK):
441 info->flash_id = FLASH_MAN_STM;
442 break;
443 case (SST_MANUFACT & FLASH_ID_MASK):
444 info->flash_id = FLASH_MAN_SST;
445 break;
446 case (INTEL_MANUFACT & FLASH_ID_MASK):
447 info->flash_id = FLASH_MAN_INTEL;
448 break;
449 default:
450 info->flash_id = FLASH_UNKNOWN;
451 info->sector_count = 0;
452 info->size = 0;
453 return (0); /* no or unknown flash */
454
455 }
456
457 value = addr[1]; /* device ID */
458
459 switch (value) {
460
461 case (AMD_ID_LV400T & FLASH_ID_MASK):
462 info->flash_id += FLASH_AM400T;
463 info->sector_count = 11;
464 info->size = 0x00100000;
465 break; /* => 1 MB */
466
467 case (AMD_ID_LV400B & FLASH_ID_MASK):
468 info->flash_id += FLASH_AM400B;
469 info->sector_count = 11;
470 info->size = 0x00100000;
471 break; /* => 1 MB */
472
473 case (AMD_ID_LV800T & FLASH_ID_MASK):
474 info->flash_id += FLASH_AM800T;
475 info->sector_count = 19;
476 info->size = 0x00200000;
477 break; /* => 2 MB */
478
479 case (AMD_ID_LV800B & FLASH_ID_MASK):
480 info->flash_id += FLASH_AM800B;
481 info->sector_count = 19;
482 info->size = 0x00200000;
483 break; /* => 2 MB */
484
485 case (AMD_ID_LV160T & FLASH_ID_MASK):
486 info->flash_id += FLASH_AM160T;
487 info->sector_count = 35;
488 info->size = 0x00400000;
489 break; /* => 4 MB */
490
491 case (AMD_ID_LV160B & FLASH_ID_MASK):
492 info->flash_id += FLASH_AM160B;
493 info->sector_count = 35;
494 info->size = 0x00400000;
495 break; /* => 4 MB */
496 #if 0 /* enable when device IDs are available */
497 case (AMD_ID_LV320T & FLASH_ID_MASK):
498 info->flash_id += FLASH_AM320T;
499 info->sector_count = 67;
500 info->size = 0x00800000;
501 break; /* => 8 MB */
502
503 case (AMD_ID_LV320B & FLASH_ID_MASK):
504 info->flash_id += FLASH_AM320B;
505 info->sector_count = 67;
506 info->size = 0x00800000;
507 break; /* => 8 MB */
508 #endif
509
510 case (AMD_ID_DL322T & FLASH_ID_MASK):
511 info->flash_id += FLASH_AMDL322T;
512 info->sector_count = 71;
513 info->size = 0x00800000;
514 break; /* => 8 MB */
515
516 case (INTEL_ID_28F800B3T & FLASH_ID_MASK):
517 info->flash_id += FLASH_INTEL800T;
518 info->sector_count = 23;
519 info->size = 0x00200000;
520 break; /* => 2 MB */
521
522 case (INTEL_ID_28F800B3B & FLASH_ID_MASK):
523 info->flash_id += FLASH_INTEL800B;
524 info->sector_count = 23;
525 info->size = 0x00200000;
526 break; /* => 2 MB */
527
528 case (INTEL_ID_28F160B3T & FLASH_ID_MASK):
529 info->flash_id += FLASH_INTEL160T;
530 info->sector_count = 39;
531 info->size = 0x00400000;
532 break; /* => 4 MB */
533
534 case (INTEL_ID_28F160B3B & FLASH_ID_MASK):
535 info->flash_id += FLASH_INTEL160B;
536 info->sector_count = 39;
537 info->size = 0x00400000;
538 break; /* => 4 MB */
539
540 case (INTEL_ID_28F320B3T & FLASH_ID_MASK):
541 info->flash_id += FLASH_INTEL320T;
542 info->sector_count = 71;
543 info->size = 0x00800000;
544 break; /* => 8 MB */
545
546 case (INTEL_ID_28F320B3B & FLASH_ID_MASK):
547 info->flash_id += FLASH_AM320B;
548 info->sector_count = 71;
549 info->size = 0x00800000;
550 break; /* => 8 MB */
551
552 #if 0 /* enable when devices are available */
553 case (INTEL_ID_28F320B3T & FLASH_ID_MASK):
554 info->flash_id += FLASH_INTEL320T;
555 info->sector_count = 135;
556 info->size = 0x01000000;
557 break; /* => 16 MB */
558
559 case (INTEL_ID_28F320B3B & FLASH_ID_MASK):
560 info->flash_id += FLASH_AM320B;
561 info->sector_count = 135;
562 info->size = 0x01000000;
563 break; /* => 16 MB */
564 #endif
565 case (INTEL_ID_28F320J3A & FLASH_ID_MASK):
566 info->flash_id += FLASH_28F320J3A;
567 info->sector_count = 32;
568 info->size = 0x00400000;
569 break; /* => 32 MBit */
570 case (INTEL_ID_28F640J3A & FLASH_ID_MASK):
571 info->flash_id += FLASH_28F640J3A;
572 info->sector_count = 64;
573 info->size = 0x00800000;
574 break; /* => 64 MBit */
575 case (INTEL_ID_28F128J3A & FLASH_ID_MASK):
576 info->flash_id += FLASH_28F128J3A;
577 info->sector_count = 128;
578 info->size = 0x01000000;
579 break; /* => 128 MBit */
580
581 default:
582 /* FIXME*/
583 info->flash_id = FLASH_UNKNOWN;
584 return (0); /* => no or unknown flash */
585 }
586
587 flash_get_offsets(base, info);
588
589 /* check for protected sectors */
590 for (i = 0; i < info->sector_count; i++) {
591 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
592 /* D0 = 1 if protected */
593 addr = (volatile FLASH_WORD_SIZE *)(info->start[i]);
594 info->protect[i] = addr[2] & 1;
595 }
596
597 /*
598 * Prevent writes to uninitialized FLASH.
599 */
600 if (info->flash_id != FLASH_UNKNOWN) {
601 addr = (volatile FLASH_WORD_SIZE *)info->start[0];
602 if( (info->flash_id & 0xFF00) == FLASH_MAN_INTEL){
603 *addr = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */
604 } else {
605 *addr = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */
606 }
607 }
608
609 return (info->size);
610 }
611
612
613 /*-----------------------------------------------------------------------
614 */
615
616 int flash_erase (flash_info_t *info, int s_first, int s_last)
617 {
618
619 volatile FLASH_WORD_SIZE *addr=(volatile FLASH_WORD_SIZE*)(info->start[0]);
620 int flag, prot, sect, l_sect, barf;
621 ulong start, now, last;
622 int rcode = 0;
623
624 if ((s_first < 0) || (s_first > s_last)) {
625 if (info->flash_id == FLASH_UNKNOWN) {
626 printf ("- missing\n");
627 } else {
628 printf ("- no sectors to erase\n");
629 }
630 return 1;
631 }
632
633 if ((info->flash_id == FLASH_UNKNOWN) ||
634 ((info->flash_id > FLASH_AMD_COMP) &&
635 ( (info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL ) ) ){
636 printf ("Can't erase unknown flash type - aborted\n");
637 return 1;
638 }
639
640 prot = 0;
641 for (sect=s_first; sect<=s_last; ++sect) {
642 if (info->protect[sect]) {
643 prot++;
644 }
645 }
646
647 if (prot) {
648 printf ("- Warning: %d protected sectors will not be erased!\n",
649 prot);
650 } else {
651 printf ("\n");
652 }
653
654 l_sect = -1;
655
656 /* Disable interrupts which might cause a timeout here */
657 flag = disable_interrupts();
658 if(info->flash_id < FLASH_AMD_COMP) {
659 #ifndef CFG_FLASH_16BIT
660 addr[0x0555] = 0x00AA00AA;
661 addr[0x02AA] = 0x00550055;
662 addr[0x0555] = 0x00800080;
663 addr[0x0555] = 0x00AA00AA;
664 addr[0x02AA] = 0x00550055;
665 #else
666 addr[0x0555] = 0x00AA;
667 addr[0x02AA] = 0x0055;
668 addr[0x0555] = 0x0080;
669 addr[0x0555] = 0x00AA;
670 addr[0x02AA] = 0x0055;
671 #endif
672 /* Start erase on unprotected sectors */
673 for (sect = s_first; sect<=s_last; sect++) {
674 if (info->protect[sect] == 0) { /* not protected */
675 addr = (volatile FLASH_WORD_SIZE *)(info->start[sect]);
676 addr[0] = (0x00300030 & FLASH_ID_MASK);
677 l_sect = sect;
678 }
679 }
680
681 /* re-enable interrupts if necessary */
682 if (flag)
683 enable_interrupts();
684
685 /* wait at least 80us - let's wait 1 ms */
686 udelay (1000);
687
688 /*
689 * We wait for the last triggered sector
690 */
691 if (l_sect < 0)
692 goto DONE;
693
694 start = get_timer (0);
695 last = start;
696 addr = (volatile FLASH_WORD_SIZE*)(info->start[l_sect]);
697 while ((addr[0] & (0x00800080&FLASH_ID_MASK)) !=
698 (0x00800080&FLASH_ID_MASK) )
699 {
700 if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
701 printf ("Timeout\n");
702 return 1;
703 }
704 /* show that we're waiting */
705 if ((now - last) > 1000) { /* every second */
706 serial_putc ('.');
707 last = now;
708 }
709 }
710
711 DONE:
712 /* reset to read mode */
713 addr = (volatile FLASH_WORD_SIZE *)info->start[0];
714 addr[0] = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */
715 } else {
716
717
718 for (sect = s_first; sect<=s_last; sect++) {
719 if (info->protect[sect] == 0) { /* not protected */
720 barf = 0;
721 #ifndef CFG_FLASH_16BIT
722 addr = (vu_long*)(info->start[sect]);
723 addr[0] = 0x00200020;
724 addr[0] = 0x00D000D0;
725 while(!(addr[0] & 0x00800080)); /* wait for error or finish */
726 if( addr[0] & 0x003A003A) { /* check for error */
727 barf = addr[0] & 0x003A0000;
728 if( barf ) {
729 barf >>=16;
730 } else {
731 barf = addr[0] & 0x0000003A;
732 }
733 }
734 #else
735 addr = (vu_short*)(info->start[sect]);
736 addr[0] = 0x0020;
737 addr[0] = 0x00D0;
738 while(!(addr[0] & 0x0080)); /* wait for error or finish */
739 if( addr[0] & 0x003A) /* check for error */
740 barf = addr[0] & 0x003A;
741 #endif
742 if(barf) {
743 printf("\nFlash error in sector at %lx\n",(unsigned long)addr);
744 if(barf & 0x0002) printf("Block locked, not erased.\n");
745 if((barf & 0x0030) == 0x0030)
746 printf("Command Sequence error.\n");
747 if((barf & 0x0030) == 0x0020)
748 printf("Block Erase error.\n");
749 if(barf & 0x0008) printf("Vpp Low error.\n");
750 rcode = 1;
751 } else printf(".");
752 l_sect = sect;
753 }
754 addr = (volatile FLASH_WORD_SIZE *)info->start[0];
755 addr[0] = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */
756
757 }
758
759 }
760 printf (" done\n");
761 return rcode;
762 }
763
764 /*-----------------------------------------------------------------------
765 */
766
767 /*flash_info_t *addr2info (ulong addr)
768 {
769 flash_info_t *info;
770 int i;
771
772 for (i=0, info=&flash_info[0]; i<CFG_MAX_FLASH_BANKS; ++i, ++info) {
773 if ((addr >= info->start[0]) &&
774 (addr < (info->start[0] + info->size)) ) {
775 return (info);
776 }
777 }
778
779 return (NULL);
780 }
781 */
782 /*-----------------------------------------------------------------------
783 * Copy memory to flash.
784 * Make sure all target addresses are within Flash bounds,
785 * and no protected sectors are hit.
786 * Returns:
787 * 0 - OK
788 * 1 - write timeout
789 * 2 - Flash not erased
790 * 4 - target range includes protected sectors
791 * 8 - target address not in Flash memory
792 */
793
794 /*int flash_write (uchar *src, ulong addr, ulong cnt)
795 {
796 int i;
797 ulong end = addr + cnt - 1;
798 flash_info_t *info_first = addr2info (addr);
799 flash_info_t *info_last = addr2info (end );
800 flash_info_t *info;
801
802 if (cnt == 0) {
803 return (0);
804 }
805
806 if (!info_first || !info_last) {
807 return (8);
808 }
809
810 for (info = info_first; info <= info_last; ++info) {
811 ulong b_end = info->start[0] + info->size;*/ /* bank end addr */
812 /* short s_end = info->sector_count - 1;
813 for (i=0; i<info->sector_count; ++i) {
814 ulong e_addr = (i == s_end) ? b_end : info->start[i + 1];
815
816 if ((end >= info->start[i]) && (addr < e_addr) &&
817 (info->protect[i] != 0) ) {
818 return (4);
819 }
820 }
821 }
822
823 */ /* finally write data to flash */
824 /* for (info = info_first; info <= info_last && cnt>0; ++info) {
825 ulong len;
826
827 len = info->start[0] + info->size - addr;
828 if (len > cnt)
829 len = cnt;
830 if ((i = write_buff(info, src, addr, len)) != 0) {
831 return (i);
832 }
833 cnt -= len;
834 addr += len;
835 src += len;
836 }
837 return (0);
838 }
839 */
840 /*-----------------------------------------------------------------------
841 * Copy memory to flash, returns:
842 * 0 - OK
843 * 1 - write timeout
844 * 2 - Flash not erased
845 */
846
847 int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
848 {
849 #ifndef CFG_FLASH_16BIT
850 ulong cp, wp, data;
851 int l;
852 #else
853 ulong cp, wp;
854 ushort data;
855 #endif
856 int i, rc;
857
858 #ifndef CFG_FLASH_16BIT
859
860
861 wp = (addr & ~3); /* get lower word aligned address */
862
863 /*
864 * handle unaligned start bytes
865 */
866 if ((l = addr - wp) != 0) {
867 data = 0;
868 for (i=0, cp=wp; i<l; ++i, ++cp) {
869 data = (data << 8) | (*(uchar *)cp);
870 }
871 for (; i<4 && cnt>0; ++i) {
872 data = (data << 8) | *src++;
873 --cnt;
874 ++cp;
875 }
876 for (; cnt==0 && i<4; ++i, ++cp) {
877 data = (data << 8) | (*(uchar *)cp);
878 }
879
880 if ((rc = write_word(info, wp, data)) != 0) {
881 return (rc);
882 }
883 wp += 4;
884 }
885
886 /*
887 * handle word aligned part
888 */
889 while (cnt >= 4) {
890 data = 0;
891 for (i=0; i<4; ++i) {
892 data = (data << 8) | *src++;
893 }
894 if ((rc = write_word(info, wp, data)) != 0) {
895 return (rc);
896 }
897 wp += 4;
898 cnt -= 4;
899 }
900
901 if (cnt == 0) {
902 return (0);
903 }
904
905 /*
906 * handle unaligned tail bytes
907 */
908 data = 0;
909 for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
910 data = (data << 8) | *src++;
911 --cnt;
912 }
913 for (; i<4; ++i, ++cp) {
914 data = (data << 8) | (*(uchar *)cp);
915 }
916
917 return (write_word(info, wp, data));
918
919 #else
920 wp = (addr & ~1); /* get lower word aligned address */
921
922 /*
923 * handle unaligned start byte
924 */
925 if (addr - wp) {
926 data = 0;
927 data = (data << 8) | *src++;
928 --cnt;
929 if ((rc = write_short(info, wp, data)) != 0) {
930 return (rc);
931 }
932 wp += 2;
933 }
934
935 /*
936 * handle word aligned part
937 */
938 /* l = 0; used for debuging */
939 while (cnt >= 2) {
940 data = 0;
941 for (i=0; i<2; ++i) {
942 data = (data << 8) | *src++;
943 }
944
945 /* if(!l){
946 printf("%x",data);
947 l = 1;
948 } used for debuging */
949
950 if ((rc = write_short(info, wp, data)) != 0) {
951 return (rc);
952 }
953 wp += 2;
954 cnt -= 2;
955 }
956
957 if (cnt == 0) {
958 return (0);
959 }
960
961 /*
962 * handle unaligned tail bytes
963 */
964 data = 0;
965 for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) {
966 data = (data << 8) | *src++;
967 --cnt;
968 }
969 for (; i<2; ++i, ++cp) {
970 data = (data << 8) | (*(uchar *)cp);
971 }
972
973 return (write_short(info, wp, data));
974
975
976 #endif
977 }
978
979 /*-----------------------------------------------------------------------
980 * Write a word to Flash, returns:
981 * 0 - OK
982 * 1 - write timeout
983 * 2 - Flash not erased
984 */
985 #ifndef CFG_FLASH_16BIT
986 static int write_word (flash_info_t *info, ulong dest, ulong data)
987 {
988 vu_long *addr = (vu_long*)(info->start[0]);
989 ulong start,barf;
990 int flag;
991
992
993 /* Check if Flash is (sufficiently) erased */
994 if ((*((vu_long *)dest) & data) != data) {
995 return (2);
996 }
997
998 /* Disable interrupts which might cause a timeout here */
999 flag = disable_interrupts();
1000
1001 if(info->flash_id > FLASH_AMD_COMP) {
1002 /* AMD stuff */
1003 addr[0x0555] = 0x00AA00AA;
1004 addr[0x02AA] = 0x00550055;
1005 addr[0x0555] = 0x00A000A0;
1006 } else {
1007 /* intel stuff */
1008 *addr = 0x00400040;
1009 }
1010 *((vu_long *)dest) = data;
1011
1012 /* re-enable interrupts if necessary */
1013 if (flag)
1014 enable_interrupts();
1015
1016 /* data polling for D7 */
1017 start = get_timer (0);
1018
1019 if(info->flash_id > FLASH_AMD_COMP) {
1020 while ((*((vu_long *)dest) & 0x00800080) != (data & 0x00800080)) {
1021 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
1022 return (1);
1023 }
1024 }
1025 } else {
1026 while(!(addr[0] & 0x00800080)) { /* wait for error or finish */
1027 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
1028 return (1);
1029 }
1030
1031 if( addr[0] & 0x003A003A) { /* check for error */
1032 barf = addr[0] & 0x003A0000;
1033 if( barf ) {
1034 barf >>=16;
1035 } else {
1036 barf = addr[0] & 0x0000003A;
1037 }
1038 printf("\nFlash write error at address %lx\n",(unsigned long)dest);
1039 if(barf & 0x0002) printf("Block locked, not erased.\n");
1040 if(barf & 0x0010) printf("Programming error.\n");
1041 if(barf & 0x0008) printf("Vpp Low error.\n");
1042 return(2);
1043 }
1044 }
1045
1046 return (0);
1047 }
1048
1049 #else
1050
1051 static int write_short (flash_info_t *info, ulong dest, ushort data)
1052 {
1053 vu_short *addr = (vu_short*)(info->start[0]);
1054 ulong start,barf;
1055 int flag;
1056
1057 /* Check if Flash is (sufficiently) erased */
1058 if ((*((vu_short *)dest) & data) != data) {
1059 return (2);
1060 }
1061
1062 /* Disable interrupts which might cause a timeout here */
1063 flag = disable_interrupts();
1064
1065 if(info->flash_id < FLASH_AMD_COMP) {
1066 /* AMD stuff */
1067 addr[0x0555] = 0x00AA;
1068 addr[0x02AA] = 0x0055;
1069 addr[0x0555] = 0x00A0;
1070 } else {
1071 /* intel stuff */
1072 *addr = 0x00D0;
1073 *addr = 0x0040;
1074 }
1075 *((vu_short *)dest) = data;
1076
1077 /* re-enable interrupts if necessary */
1078 if (flag)
1079 enable_interrupts();
1080
1081 /* data polling for D7 */
1082 start = get_timer (0);
1083
1084 if(info->flash_id < FLASH_AMD_COMP) {
1085 /* AMD stuff */
1086 while ((*((vu_short *)dest) & 0x0080) != (data & 0x0080)) {
1087 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
1088 return (1);
1089 }
1090 }
1091
1092 } else {
1093 /* intel stuff */
1094 while(!(addr[0] & 0x0080)){ /* wait for error or finish */
1095 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) return (1);
1096 }
1097
1098 if( addr[0] & 0x003A) { /* check for error */
1099 barf = addr[0] & 0x003A;
1100 printf("\nFlash write error at address %lx\n",(unsigned long)dest);
1101 if(barf & 0x0002) printf("Block locked, not erased.\n");
1102 if(barf & 0x0010) printf("Programming error.\n");
1103 if(barf & 0x0008) printf("Vpp Low error.\n");
1104 return(2);
1105 }
1106 *addr = 0x00B0;
1107 *addr = 0x0070;
1108 while(!(addr[0] & 0x0080)){ /* wait for error or finish */
1109 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) return (1);
1110 }
1111 *addr = 0x00FF;
1112 }
1113 return (0);
1114 }
1115
1116
1117 #endif
1118
1119 /*-----------------------------------------------------------------------
1120 */
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