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Patch by Wolter Kamphuis, 05 Dec 2003:
[people/ms/u-boot.git] / board / snmc / qs860t / flash.c
CommitLineData
3bbc899f
WD		 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
32flash_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 */
47ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info);
48
49#ifndef CFG_FLASH_16BIT
50static int write_word (flash_info_t *info, ulong dest, ulong data);
51#else
52static int write_short (flash_info_t *info, ulong dest, ushort data);
53#endif
54static void flash_get_offsets (ulong base, flash_info_t *info);
55
56
57/*-----------------------------------------------------------------------
58 */
59
60unsigned 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
177static void flash_get_offsets (ulong base, flash_info_t *info)
178{
179 int i;
180
181 /* set up sector start adress table */
182 if ((info->flash_id & FLASH_TYPEMASK) == INTEL_ID_28F320J3A ||
183 (info->flash_id & FLASH_TYPEMASK) == INTEL_ID_28F640J3A ||
184 (info->flash_id & FLASH_TYPEMASK) == INTEL_ID_28F128J3A) {
185 for (i = 0; i < info->sector_count; i++) {
186 info->start[i] = base + (i * info->size/info->sector_count);
187 }
188 }
189 else if (info->flash_id & FLASH_BTYPE) {
190 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
191
192#ifndef CFG_FLASH_16BIT
193 /* set sector offsets for bottom boot block type */
194 info->start[0] = base + 0x00000000;
195 info->start[1] = base + 0x00004000;
196 info->start[2] = base + 0x00008000;
197 info->start[3] = base + 0x0000C000;
198 info->start[4] = base + 0x00010000;
199 info->start[5] = base + 0x00014000;
200 info->start[6] = base + 0x00018000;
201 info->start[7] = base + 0x0001C000;
202 for (i = 8; i < info->sector_count; i++) {
203 info->start[i] = base + (i * 0x00020000) - 0x000E0000;
204 }
205 } else {
206 /* set sector offsets for bottom boot block type */
207 info->start[0] = base + 0x00000000;
208 info->start[1] = base + 0x00008000;
209 info->start[2] = base + 0x0000C000;
210 info->start[3] = base + 0x00010000;
211 for (i = 4; i < info->sector_count; i++) {
212 info->start[i] = base + (i * 0x00020000) - 0x00060000;
213 }
214 }
215#else
216 /* set sector offsets for bottom boot block type */
217 info->start[0] = base + 0x00000000;
218 info->start[1] = base + 0x00002000;
219 info->start[2] = base + 0x00004000;
220 info->start[3] = base + 0x00006000;
221 info->start[4] = base + 0x00008000;
222 info->start[5] = base + 0x0000A000;
223 info->start[6] = base + 0x0000C000;
224 info->start[7] = base + 0x0000E000;
225 for (i = 8; i < info->sector_count; i++) {
226 info->start[i] = base + (i * 0x00010000) - 0x00070000;
227 }
228 } else {
229 /* set sector offsets for bottom boot block type */
230 info->start[0] = base + 0x00000000;
231 info->start[1] = base + 0x00004000;
232 info->start[2] = base + 0x00006000;
233 info->start[3] = base + 0x00008000;
234 for (i = 4; i < info->sector_count; i++) {
235 info->start[i] = base + (i * 0x00010000) - 0x00030000;
236 }
237 }
238#endif
239 } else {
240 /* set sector offsets for top boot block type */
241 i = info->sector_count - 1;
242 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
243
244#ifndef CFG_FLASH_16BIT
245 info->start[i--] = base + info->size - 0x00004000;
246 info->start[i--] = base + info->size - 0x00008000;
247 info->start[i--] = base + info->size - 0x0000C000;
248 info->start[i--] = base + info->size - 0x00010000;
249 info->start[i--] = base + info->size - 0x00014000;
250 info->start[i--] = base + info->size - 0x00018000;
251 info->start[i--] = base + info->size - 0x0001C000;
252 for (; i >= 0; i--) {
253 info->start[i] = base + i * 0x00020000;
254 }
255 } else {
256
257 info->start[i--] = base + info->size - 0x00008000;
258 info->start[i--] = base + info->size - 0x0000C000;
259 info->start[i--] = base + info->size - 0x00010000;
260 for (; i >= 0; i--) {
261 info->start[i] = base + i * 0x00020000;
262 }
263 }
264#else
265 info->start[i--] = base + info->size - 0x00002000;
266 info->start[i--] = base + info->size - 0x00004000;
267 info->start[i--] = base + info->size - 0x00006000;
268 info->start[i--] = base + info->size - 0x00008000;
269 info->start[i--] = base + info->size - 0x0000A000;
270 info->start[i--] = base + info->size - 0x0000C000;
271 info->start[i--] = base + info->size - 0x0000E000;
272 for (; i >= 0; i--) {
273 info->start[i] = base + i * 0x00010000;
274 }
275 } else {
276 info->start[i--] = base + info->size - 0x00004000;
277 info->start[i--] = base + info->size - 0x00006000;
278 info->start[i--] = base + info->size - 0x00008000;
279 for (; i >= 0; i--) {
280 info->start[i] = base + i * 0x00010000;
281 }
282 }
283#endif
284 }
285}
286
287/*-----------------------------------------------------------------------
288 */
289
290void flash_print_info (flash_info_t *info)
291{
292 int i;
293 uchar *boottype;
294 uchar botboot[]=", bottom boot sect)\n";
295 uchar topboot[]=", top boot sector)\n";
296
297 if (info->flash_id == FLASH_UNKNOWN) {
298 printf ("missing or unknown FLASH type\n");
299 return;
300 }
301
302 switch (info->flash_id & FLASH_VENDMASK) {
303 case FLASH_MAN_AMD: printf ("AMD "); break;
304 case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
305 case FLASH_MAN_SST: printf ("SST "); break;
306 case FLASH_MAN_STM: printf ("STM "); break;
307 case FLASH_MAN_INTEL: printf ("INTEL "); break;
308 default: printf ("Unknown Vendor "); break;
309 }
310
311 if (info->flash_id & 0x0001 ) {
312 boottype = botboot;
313 } else {
314 boottype = topboot;
315 }
316
317 switch (info->flash_id & FLASH_TYPEMASK) {
318 case FLASH_AM400B: printf ("AM29LV400B (4 Mbit%s",boottype);
319 break;
320 case FLASH_AM400T: printf ("AM29LV400T (4 Mbit%s",boottype);
321 break;
322 case FLASH_AM800B: printf ("AM29LV800B (8 Mbit%s",boottype);
323 break;
324 case FLASH_AM800T: printf ("AM29LV800T (8 Mbit%s",boottype);
325 break;
326 case FLASH_AM160B: printf ("AM29LV160B (16 Mbit%s",boottype);
327 break;
328 case FLASH_AM160T: printf ("AM29LV160T (16 Mbit%s",boottype);
329 break;
330 case FLASH_AM320B: printf ("AM29LV320B (32 Mbit%s",boottype);
331 break;
332 case FLASH_AM320T: printf ("AM29LV320T (32 Mbit%s",boottype);
333 break;
334 case FLASH_INTEL800B: printf ("INTEL28F800B (8 Mbit%s",boottype);
335 break;
336 case FLASH_INTEL800T: printf ("INTEL28F800T (8 Mbit%s",boottype);
337 break;
338 case FLASH_INTEL160B: printf ("INTEL28F160B (16 Mbit%s",boottype);
339 break;
340 case FLASH_INTEL160T: printf ("INTEL28F160T (16 Mbit%s",boottype);
341 break;
342 case FLASH_INTEL320B: printf ("INTEL28F320B (32 Mbit%s",boottype);
343 break;
344 case FLASH_INTEL320T: printf ("INTEL28F320T (32 Mbit%s",boottype);
345 break;
346 case FLASH_AMDL322T: printf ("AM29DL322T (32 Mbit%s",boottype);
347 break;
348
349#if 0 /* enable when devices are available */
350
351 case FLASH_INTEL640B: printf ("INTEL28F640B (64 Mbit%s",boottype);
352 break;
353 case FLASH_INTEL640T: printf ("INTEL28F640T (64 Mbit%s",boottype);
354 break;
355#endif
356 case INTEL_ID_28F320J3A: printf ("INTEL28F320JA3 (32 Mbit%s",boottype);
357 break;
358 case INTEL_ID_28F640J3A: printf ("INTEL28F640JA3 (64 Mbit%s",boottype);
359 break;
360 case INTEL_ID_28F128J3A: printf ("INTEL28F128JA3 (128 Mbit%s",boottype);
361 break;
362
363 default: printf ("Unknown Chip Type\n");
364 break;
365 }
366
367 printf (" Size: %ld MB in %d Sectors\n",
368 info->size >> 20, info->sector_count);
369
370 printf (" Sector Start Addresses:");
371 for (i=0; i<info->sector_count; ++i) {
372 if ((i % 5) == 0)
373 printf ("\n ");
374 printf (" %08lX%s",
375 info->start[i],
376 info->protect[i] ? " (RO)" : " "
377 );
378 }
379 printf ("\n");
380 return;
381}
382
383
384/*-----------------------------------------------------------------------
385 */
386
387
388/*-----------------------------------------------------------------------
389 */
390
391/*
392 * The following code cannot be run from FLASH!
393 */
394ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info)
395{
396 short i;
397 ulong base = (ulong)addr;
398 FLASH_WORD_SIZE value;
399
400 /* Write auto select command: read Manufacturer ID */
401
402
403#ifndef CFG_FLASH_16BIT
404
405 /*
406 * Note: if it is an AMD flash and the word at addr[0000]
407 * is 0x00890089 this routine will think it is an Intel
408 * flash device and may(most likely) cause trouble.
409 */
410
411 addr[0x0000] = 0x00900090;
412 if(addr[0x0000] != 0x00890089){
413 addr[0x0555] = 0x00AA00AA;
414 addr[0x02AA] = 0x00550055;
415 addr[0x0555] = 0x00900090;
416#else
417
418 /*
419 * Note: if it is an AMD flash and the word at addr[0000]
420 * is 0x0089 this routine will think it is an Intel
421 * flash device and may(most likely) cause trouble.
422 */
423
424 addr[0x0000] = 0x0090;
425
426 if(addr[0x0000] != 0x0089){
427 addr[0x0555] = 0x00AA;
428 addr[0x02AA] = 0x0055;
429 addr[0x0555] = 0x0090;
430#endif
431 }
432 value = addr[0];
433
434 switch (value) {
435 case (AMD_MANUFACT & FLASH_ID_MASK):
436 info->flash_id = FLASH_MAN_AMD;
437 break;
438 case (FUJ_MANUFACT & FLASH_ID_MASK):
439 info->flash_id = FLASH_MAN_FUJ;
440 break;
441 case (STM_MANUFACT & FLASH_ID_MASK):
442 info->flash_id = FLASH_MAN_STM;
443 break;
444 case (SST_MANUFACT & FLASH_ID_MASK):
445 info->flash_id = FLASH_MAN_SST;
446 break;
447 case (INTEL_MANUFACT & FLASH_ID_MASK):
448 info->flash_id = FLASH_MAN_INTEL;
449 break;
450 default:
451 info->flash_id = FLASH_UNKNOWN;
452 info->sector_count = 0;
453 info->size = 0;
454 return (0); /* no or unknown flash */
455
456 }
457
458 value = addr[1]; /* device ID */
459
460 switch (value) {
461
462 case (AMD_ID_LV400T & FLASH_ID_MASK):
463 info->flash_id += FLASH_AM400T;
464 info->sector_count = 11;
465 info->size = 0x00100000;
466 break; /* => 1 MB */
467
468 case (AMD_ID_LV400B & FLASH_ID_MASK):
469 info->flash_id += FLASH_AM400B;
470 info->sector_count = 11;
471 info->size = 0x00100000;
472 break; /* => 1 MB */
473
474 case (AMD_ID_LV800T & FLASH_ID_MASK):
475 info->flash_id += FLASH_AM800T;
476 info->sector_count = 19;
477 info->size = 0x00200000;
478 break; /* => 2 MB */
479
480 case (AMD_ID_LV800B & FLASH_ID_MASK):
481 info->flash_id += FLASH_AM800B;
482 info->sector_count = 19;
483 info->size = 0x00200000;
484 break; /* => 2 MB */
485
486 case (AMD_ID_LV160T & FLASH_ID_MASK):
487 info->flash_id += FLASH_AM160T;
488 info->sector_count = 35;
489 info->size = 0x00400000;
490 break; /* => 4 MB */
491
492 case (AMD_ID_LV160B & FLASH_ID_MASK):
493 info->flash_id += FLASH_AM160B;
494 info->sector_count = 35;
495 info->size = 0x00400000;
496 break; /* => 4 MB */
497#if 0 /* enable when device IDs are available */
498 case (AMD_ID_LV320T & FLASH_ID_MASK):
499 info->flash_id += FLASH_AM320T;
500 info->sector_count = 67;
501 info->size = 0x00800000;
502 break; /* => 8 MB */
503
504 case (AMD_ID_LV320B & FLASH_ID_MASK):
505 info->flash_id += FLASH_AM320B;
506 info->sector_count = 67;
507 info->size = 0x00800000;
508 break; /* => 8 MB */
509#endif
510
511 case (AMD_ID_DL322T & FLASH_ID_MASK):
512 info->flash_id += FLASH_AMDL322T;
513 info->sector_count = 71;
514 info->size = 0x00800000;
515 break; /* => 8 MB */
516
517 case (INTEL_ID_28F800B3T & FLASH_ID_MASK):
518 info->flash_id += FLASH_INTEL800T;
519 info->sector_count = 23;
520 info->size = 0x00200000;
521 break; /* => 2 MB */
522
523 case (INTEL_ID_28F800B3B & FLASH_ID_MASK):
524 info->flash_id += FLASH_INTEL800B;
525 info->sector_count = 23;
526 info->size = 0x00200000;
527 break; /* => 2 MB */
528
529 case (INTEL_ID_28F160B3T & FLASH_ID_MASK):
530 info->flash_id += FLASH_INTEL160T;
531 info->sector_count = 39;
532 info->size = 0x00400000;
533 break; /* => 4 MB */
534
535 case (INTEL_ID_28F160B3B & FLASH_ID_MASK):
536 info->flash_id += FLASH_INTEL160B;
537 info->sector_count = 39;
538 info->size = 0x00400000;
539 break; /* => 4 MB */
540
541 case (INTEL_ID_28F320B3T & FLASH_ID_MASK):
542 info->flash_id += FLASH_INTEL320T;
543 info->sector_count = 71;
544 info->size = 0x00800000;
545 break; /* => 8 MB */
546
547 case (INTEL_ID_28F320B3B & FLASH_ID_MASK):
548 info->flash_id += FLASH_AM320B;
549 info->sector_count = 71;
550 info->size = 0x00800000;
551 break; /* => 8 MB */
552
553#if 0 /* enable when devices are available */
554 case (INTEL_ID_28F320B3T & FLASH_ID_MASK):
555 info->flash_id += FLASH_INTEL320T;
556 info->sector_count = 135;
557 info->size = 0x01000000;
558 break; /* => 16 MB */
559
560 case (INTEL_ID_28F320B3B & FLASH_ID_MASK):
561 info->flash_id += FLASH_AM320B;
562 info->sector_count = 135;
563 info->size = 0x01000000;
564 break; /* => 16 MB */
565#endif
566 case (INTEL_ID_28F320J3A & FLASH_ID_MASK):
567 info->flash_id += FLASH_28F320J3A;
568 info->sector_count = 32;
569 info->size = 0x00400000;
570 break; /* => 32 MBit */
571 case (INTEL_ID_28F640J3A & FLASH_ID_MASK):
572 info->flash_id += FLASH_28F640J3A;
573 info->sector_count = 64;
574 info->size = 0x00800000;
575 break; /* => 64 MBit */
576 case (INTEL_ID_28F128J3A & FLASH_ID_MASK):
577 info->flash_id += FLASH_28F128J3A;
578 info->sector_count = 128;
579 info->size = 0x01000000;
580 break; /* => 128 MBit */
581
582 default:
583 /* FIXME*/
584 info->flash_id = FLASH_UNKNOWN;
585 return (0); /* => no or unknown flash */
586 }
587
588 flash_get_offsets(base, info);
589
590 /* check for protected sectors */
591 for (i = 0; i < info->sector_count; i++) {
592 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
593 /* D0 = 1 if protected */
594 addr = (volatile FLASH_WORD_SIZE *)(info->start[i]);
595 info->protect[i] = addr[2] & 1;
596 }
597
598 /*
599 * Prevent writes to uninitialized FLASH.
600 */
601 if (info->flash_id != FLASH_UNKNOWN) {
602 addr = (volatile FLASH_WORD_SIZE *)info->start[0];
603 if( (info->flash_id & 0xFF00) == FLASH_MAN_INTEL){
604 *addr = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */
605 } else {
606 *addr = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */
607 }
608 }
609
610 return (info->size);
611}
612
613
614/*-----------------------------------------------------------------------
615 */
616
617int flash_erase (flash_info_t *info, int s_first, int s_last)
618{
619
620 volatile FLASH_WORD_SIZE *addr=(volatile FLASH_WORD_SIZE*)(info->start[0]);
621 int flag, prot, sect, l_sect, barf;
622 ulong start, now, last;
623 int rcode = 0;
624
625 if ((s_first < 0) || (s_first > s_last)) {
626 if (info->flash_id == FLASH_UNKNOWN) {
627 printf ("- missing\n");
628 } else {
629 printf ("- no sectors to erase\n");
630 }
631 return 1;
632 }
633
634 if ((info->flash_id == FLASH_UNKNOWN) ||
635 ((info->flash_id > FLASH_AMD_COMP) &&
636 ( (info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL ) ) ){
637 printf ("Can't erase unknown flash type - aborted\n");
638 return 1;
639 }
640
641 prot = 0;
642 for (sect=s_first; sect<=s_last; ++sect) {
643 if (info->protect[sect]) {
644 prot++;
645 }
646 }
647
648 if (prot) {
649 printf ("- Warning: %d protected sectors will not be erased!\n",
650 prot);
651 } else {
652 printf ("\n");
653 }
654
655 l_sect = -1;
656
657 /* Disable interrupts which might cause a timeout here */
658 flag = disable_interrupts();
659 if(info->flash_id < FLASH_AMD_COMP) {
660#ifndef CFG_FLASH_16BIT
661 addr[0x0555] = 0x00AA00AA;
662 addr[0x02AA] = 0x00550055;
663 addr[0x0555] = 0x00800080;
664 addr[0x0555] = 0x00AA00AA;
665 addr[0x02AA] = 0x00550055;
666#else
667 addr[0x0555] = 0x00AA;
668 addr[0x02AA] = 0x0055;
669 addr[0x0555] = 0x0080;
670 addr[0x0555] = 0x00AA;
671 addr[0x02AA] = 0x0055;
672#endif
673 /* Start erase on unprotected sectors */
674 for (sect = s_first; sect<=s_last; sect++) {
675 if (info->protect[sect] == 0) { /* not protected */
676 addr = (volatile FLASH_WORD_SIZE *)(info->start[sect]);
677 addr[0] = (0x00300030 & FLASH_ID_MASK);
678 l_sect = sect;
679 }
680 }
681
682 /* re-enable interrupts if necessary */
683 if (flag)
684 enable_interrupts();
685
686 /* wait at least 80us - let's wait 1 ms */
687 udelay (1000);
688
689 /*
690 * We wait for the last triggered sector
691 */
692 if (l_sect < 0)
693 goto DONE;
694
695 start = get_timer (0);
696 last = start;
697 addr = (volatile FLASH_WORD_SIZE*)(info->start[l_sect]);
698 while ((addr[0] & (0x00800080&FLASH_ID_MASK)) !=
699 (0x00800080&FLASH_ID_MASK) )
700 {
701 if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
702 printf ("Timeout\n");
703 return 1;
704 }
705 /* show that we're waiting */
706 if ((now - last) > 1000) { /* every second */
707 serial_putc ('.');
708 last = now;
709 }
710 }
711
712DONE:
713 /* reset to read mode */
714 addr = (volatile FLASH_WORD_SIZE *)info->start[0];
715 addr[0] = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */
716 } else {
717
718
719 for (sect = s_first; sect<=s_last; sect++) {
720 if (info->protect[sect] == 0) { /* not protected */
721 barf = 0;
722#ifndef CFG_FLASH_16BIT
723 addr = (vu_long*)(info->start[sect]);
724 addr[0] = 0x00200020;
725 addr[0] = 0x00D000D0;
726 while(!(addr[0] & 0x00800080)); /* wait for error or finish */
727 if( addr[0] & 0x003A003A) { /* check for error */
728 barf = addr[0] & 0x003A0000;
729 if( barf ) {
730 barf >>=16;
731 } else {
732 barf = addr[0] & 0x0000003A;
733 }
734 }
735#else
736 addr = (vu_short*)(info->start[sect]);
737 addr[0] = 0x0020;
738 addr[0] = 0x00D0;
739 while(!(addr[0] & 0x0080)); /* wait for error or finish */
740 if( addr[0] & 0x003A) /* check for error */
741 barf = addr[0] & 0x003A;
742#endif
743 if(barf) {
744 printf("\nFlash error in sector at %lx\n",(unsigned long)addr);
745 if(barf & 0x0002) printf("Block locked, not erased.\n");
746 if((barf & 0x0030) == 0x0030)
747 printf("Command Sequence error.\n");
748 if((barf & 0x0030) == 0x0020)
749 printf("Block Erase error.\n");
750 if(barf & 0x0008) printf("Vpp Low error.\n");
751 rcode = 1;
752 } else printf(".");
753 l_sect = sect;
754 }
755 addr = (volatile FLASH_WORD_SIZE *)info->start[0];
756 addr[0] = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */
757
758 }
759
760 }
761 printf (" done\n");
762 return rcode;
763}
764
765/*-----------------------------------------------------------------------
766 */
767
768/*flash_info_t *addr2info (ulong addr)
769{
770 flash_info_t *info;
771 int i;
772
773 for (i=0, info=&flash_info[0]; i<CFG_MAX_FLASH_BANKS; ++i, ++info) {
774 if ((addr >= info->start[0]) &&
775 (addr < (info->start[0] + info->size)) ) {
776 return (info);
777 }
778 }
779
780 return (NULL);
781}
782*/
783/*-----------------------------------------------------------------------
784 * Copy memory to flash.
785 * Make sure all target addresses are within Flash bounds,
786 * and no protected sectors are hit.
787 * Returns:
788 * 0 - OK
789 * 1 - write timeout
790 * 2 - Flash not erased
791 * 4 - target range includes protected sectors
792 * 8 - target address not in Flash memory
793 */
794
795/*int flash_write (uchar *src, ulong addr, ulong cnt)
796{
797 int i;
798 ulong end = addr + cnt - 1;
799 flash_info_t *info_first = addr2info (addr);
800 flash_info_t *info_last = addr2info (end );
801 flash_info_t *info;
802
803 if (cnt == 0) {
804 return (0);
805 }
806
807 if (!info_first || !info_last) {
808 return (8);
809 }
810
811 for (info = info_first; info <= info_last; ++info) {
812 ulong b_end = info->start[0] + info->size;*/ /* bank end addr */
813/* short s_end = info->sector_count - 1;
814 for (i=0; i<info->sector_count; ++i) {
815 ulong e_addr = (i == s_end) ? b_end : info->start[i + 1];
816
817 if ((end >= info->start[i]) && (addr < e_addr) &&
818 (info->protect[i] != 0) ) {
819 return (4);
820 }
821 }
822 }
823
824*/ /* finally write data to flash */
825/* for (info = info_first; info <= info_last && cnt>0; ++info) {
826 ulong len;
827
828 len = info->start[0] + info->size - addr;
829 if (len > cnt)
830 len = cnt;
831 if ((i = write_buff(info, src, addr, len)) != 0) {
832 return (i);
833 }
834 cnt -= len;
835 addr += len;
836 src += len;
837 }
838 return (0);
839}
840*/
841/*-----------------------------------------------------------------------
842 * Copy memory to flash, returns:
843 * 0 - OK
844 * 1 - write timeout
845 * 2 - Flash not erased
846 */
847
848int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
849{
850#ifndef CFG_FLASH_16BIT
851 ulong cp, wp, data;
852 int l;
853#else
854 ulong cp, wp;
855 ushort data;
856#endif
857 int i, rc;
858
859#ifndef CFG_FLASH_16BIT
860
861
862 wp = (addr & ~3); /* get lower word aligned address */
863
864 /*
865 * handle unaligned start bytes
866 */
867 if ((l = addr - wp) != 0) {
868 data = 0;
869 for (i=0, cp=wp; i<l; ++i, ++cp) {
870 data = (data << 8) | (*(uchar *)cp);
871 }
872 for (; i<4 && cnt>0; ++i) {
873 data = (data << 8) | *src++;
874 --cnt;
875 ++cp;
876 }
877 for (; cnt==0 && i<4; ++i, ++cp) {
878 data = (data << 8) | (*(uchar *)cp);
879 }
880
881 if ((rc = write_word(info, wp, data)) != 0) {
882 return (rc);
883 }
884 wp += 4;
885 }
886
887 /*
888 * handle word aligned part
889 */
890 while (cnt >= 4) {
891 data = 0;
892 for (i=0; i<4; ++i) {
893 data = (data << 8) | *src++;
894 }
895 if ((rc = write_word(info, wp, data)) != 0) {
896 return (rc);
897 }
898 wp += 4;
899 cnt -= 4;
900 }
901
902 if (cnt == 0) {
903 return (0);
904 }
905
906 /*
907 * handle unaligned tail bytes
908 */
909 data = 0;
910 for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
911 data = (data << 8) | *src++;
912 --cnt;
913 }
914 for (; i<4; ++i, ++cp) {
915 data = (data << 8) | (*(uchar *)cp);
916 }
917
918 return (write_word(info, wp, data));
919
920#else
921 wp = (addr & ~1); /* get lower word aligned address */
922
923 /*
924 * handle unaligned start byte
925 */
926 if (addr - wp) {
927 data = 0;
928 data = (data << 8) | *src++;
929 --cnt;
930 if ((rc = write_short(info, wp, data)) != 0) {
931 return (rc);
932 }
933 wp += 2;
934 }
935
936 /*
937 * handle word aligned part
938 */
939/* l = 0; used for debuging */
940 while (cnt >= 2) {
941 data = 0;
942 for (i=0; i<2; ++i) {
943 data = (data << 8) | *src++;
944 }
945
946/* if(!l){
947 printf("%x",data);
948 l = 1;
949 } used for debuging */
950
951 if ((rc = write_short(info, wp, data)) != 0) {
952 return (rc);
953 }
954 wp += 2;
955 cnt -= 2;
956 }
957
958 if (cnt == 0) {
959 return (0);
960 }
961
962 /*
963 * handle unaligned tail bytes
964 */
965 data = 0;
966 for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) {
967 data = (data << 8) | *src++;
968 --cnt;
969 }
970 for (; i<2; ++i, ++cp) {
971 data = (data << 8) | (*(uchar *)cp);
972 }
973
974 return (write_short(info, wp, data));
975
976
977#endif
978}
979
980/*-----------------------------------------------------------------------
981 * Write a word to Flash, returns:
982 * 0 - OK
983 * 1 - write timeout
984 * 2 - Flash not erased
985 */
986#ifndef CFG_FLASH_16BIT
987static int write_word (flash_info_t *info, ulong dest, ulong data)
988{
989 vu_long *addr = (vu_long*)(info->start[0]);
990 ulong start,barf;
991 int flag;
992
993
994 /* Check if Flash is (sufficiently) erased */
995 if ((*((vu_long *)dest) & data) != data) {
996 return (2);
997 }
998
999 /* Disable interrupts which might cause a timeout here */
1000 flag = disable_interrupts();
1001
1002 if(info->flash_id > FLASH_AMD_COMP) {
1003 /* AMD stuff */
1004 addr[0x0555] = 0x00AA00AA;
1005 addr[0x02AA] = 0x00550055;
1006 addr[0x0555] = 0x00A000A0;
1007 } else {
1008 /* intel stuff */
1009 *addr = 0x00400040;
1010 }
1011 *((vu_long *)dest) = data;
1012
1013 /* re-enable interrupts if necessary */
1014 if (flag)
1015 enable_interrupts();
1016
1017 /* data polling for D7 */
1018 start = get_timer (0);
1019
1020 if(info->flash_id > FLASH_AMD_COMP) {
1021 while ((*((vu_long *)dest) & 0x00800080) != (data & 0x00800080)) {
1022 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
1023 return (1);
1024 }
1025 }
1026 } else {
1027 while(!(addr[0] & 0x00800080)) { /* wait for error or finish */
1028 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
1029 return (1);
1030 }
1031
1032 if( addr[0] & 0x003A003A) { /* check for error */
1033 barf = addr[0] & 0x003A0000;
1034 if( barf ) {
1035 barf >>=16;
1036 } else {
1037 barf = addr[0] & 0x0000003A;
1038 }
1039 printf("\nFlash write error at address %lx\n",(unsigned long)dest);
1040 if(barf & 0x0002) printf("Block locked, not erased.\n");
1041 if(barf & 0x0010) printf("Programming error.\n");
1042 if(barf & 0x0008) printf("Vpp Low error.\n");
1043 return(2);
1044 }
1045 }
1046
1047 return (0);
1048}
1049
1050#else
1051
1052static int write_short (flash_info_t *info, ulong dest, ushort data)
1053{
1054 vu_short *addr = (vu_short*)(info->start[0]);
1055 ulong start,barf;
1056 int flag;
1057
1058 /* Check if Flash is (sufficiently) erased */
1059 if ((*((vu_short *)dest) & data) != data) {
1060 return (2);
1061 }
1062
1063 /* Disable interrupts which might cause a timeout here */
1064 flag = disable_interrupts();
1065
1066 if(info->flash_id < FLASH_AMD_COMP) {
1067 /* AMD stuff */
1068 addr[0x0555] = 0x00AA;
1069 addr[0x02AA] = 0x0055;
1070 addr[0x0555] = 0x00A0;
1071 } else {
1072 /* intel stuff */
1073 *addr = 0x00D0;
1074 *addr = 0x0040;
1075 }
1076 *((vu_short *)dest) = data;
1077
1078 /* re-enable interrupts if necessary */
1079 if (flag)
1080 enable_interrupts();
1081
1082 /* data polling for D7 */
1083 start = get_timer (0);
1084
1085 if(info->flash_id < FLASH_AMD_COMP) {
1086 /* AMD stuff */
1087 while ((*((vu_short *)dest) & 0x0080) != (data & 0x0080)) {
1088 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
1089 return (1);
1090 }
1091 }
1092
1093 } else {
1094 /* intel stuff */
1095 while(!(addr[0] & 0x0080)){ /* wait for error or finish */
1096 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) return (1);
1097 }
1098
1099 if( addr[0] & 0x003A) { /* check for error */
1100 barf = addr[0] & 0x003A;
1101 printf("\nFlash write error at address %lx\n",(unsigned long)dest);
1102 if(barf & 0x0002) printf("Block locked, not erased.\n");
1103 if(barf & 0x0010) printf("Programming error.\n");
1104 if(barf & 0x0008) printf("Vpp Low error.\n");
1105 return(2);
1106 }
1107 *addr = 0x00B0;
1108 *addr = 0x0070;
1109 while(!(addr[0] & 0x0080)){ /* wait for error or finish */
1110 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) return (1);
1111 }
1112 *addr = 0x00FF;
1113 }
1114 return (0);
1115}
1116
1117
1118#endif
1119
1120/*-----------------------------------------------------------------------
1121 */
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