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rename CFG_ENV macros to CONFIG_ENV
[people/ms/u-boot.git] / board / amcc / taihu / flash.c
CommitLineData
d4024bb7
JO		 1/*
2 * (C) Copyright 2000
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24/*
25 * Modified 4/5/2001
26 * Wait for completion of each sector erase command issued
27 * 4/5/2001
28 * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
29 */
30
31#include <common.h>
32#include <ppc4xx.h>
33#include <asm/processor.h>
34
35flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
36
37#undef DEBUG
38#ifdef DEBUG
39#define DEBUGF(x...) printf(x)
40#else
41#define DEBUGF(x...)
42#endif /* DEBUG */
43
44#define CFG_FLASH_CHAR_SIZE unsigned char
45#define CFG_FLASH_CHAR_ADDR0 (0x0aaa)
46#define CFG_FLASH_CHAR_ADDR1 (0x0555)
47/*-----------------------------------------------------------------------
48 * Functions
49 */
50static ulong flash_get_size(vu_long * addr, flash_info_t * info);
51static void flash_get_offsets(ulong base, flash_info_t * info);
52static int write_word(flash_info_t * info, ulong dest, ulong data);
53#ifdef FLASH_BASE1_PRELIM
54static int write_word_1(flash_info_t * info, ulong dest, ulong data);
55static int write_word_2(flash_info_t * info, ulong dest, ulong data);
56static int flash_erase_1(flash_info_t * info, int s_first, int s_last);
57static int flash_erase_2(flash_info_t * info, int s_first, int s_last);
58static ulong flash_get_size_1(vu_long * addr, flash_info_t * info);
59static ulong flash_get_size_2(vu_long * addr, flash_info_t * info);
60#endif
61
62unsigned long flash_init(void)
63{
64 unsigned long size_b0, size_b1=0;
65 int i;
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 =
75 flash_get_size((vu_long *) FLASH_BASE0_PRELIM, &flash_info[0]);
76
77 if (flash_info[0].flash_id == FLASH_UNKNOWN) {
78 printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
79 size_b0, size_b0 << 20);
80 }
81
82 if (size_b0) {
83 /* Setup offsets */
84 flash_get_offsets(FLASH_BASE0_PRELIM, &flash_info[0]);
85 /* Monitor protection ON by default */
86 (void)flash_protect(FLAG_PROTECT_SET,
87 CFG_MONITOR_BASE,
88 CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1,
89 &flash_info[0]);
5a1aceb0 90#ifdef CONFIG_ENV_IS_IN_FLASH
0e8d1586
JCPV		 91 (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR,
92 CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
d4024bb7 93 &flash_info[0]);
0e8d1586
JCPV		 94 (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
95 CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
d4024bb7
JO		 96 &flash_info[0]);
97#endif
98 /* Also protect sector containing initial power-up instruction */
99 /* (flash_protect() checks address range - other call ignored) */
100 (void)flash_protect(FLAG_PROTECT_SET,
101 0xFFFFFFFC, 0xFFFFFFFF, &flash_info[0]);
102
103 flash_info[0].size = size_b0;
104 }
105#ifdef FLASH_BASE1_PRELIM
106 size_b1 =
107 flash_get_size((vu_long *) FLASH_BASE1_PRELIM, &flash_info[1])*2;
108
109 if (flash_info[1].flash_id == FLASH_UNKNOWN) {
110 printf("## Unknown FLASH on Bank 1 - Size = 0x%08lx = %ld MB\n",
111 size_b1, size_b1 << 20);
112 }
113
114 if (size_b1) {
115 /* Setup offsets */
116 flash_get_offsets(FLASH_BASE1_PRELIM, &flash_info[1]);
117 flash_info[1].size = size_b1;
118 }
119#endif
120 return (size_b0 + size_b1);
121}
122
123static void flash_get_offsets(ulong base, flash_info_t * info)
124{
125 int i;
126
127 /* set up sector start address table */
128 if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
129 (info->flash_id == FLASH_AM040)) {
130 for (i = 0; i < info->sector_count; i++)
131 info->start[i] = base + (i * 0x00010000);
132 } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
133 for (i = 0; i < info->sector_count; i++) {
134 info->start[i] = base + (i * 0x00010000*2);
135 }
136 } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N ) {
137 for (i = 0; i < info->sector_count; i++) {
138 info->start[i] = base + (i * 0x00020000*2);
139 }
140 } else {
141 if (info->flash_id & FLASH_BTYPE) {
142 /* set sector offsets for bottom boot block type */
143 info->start[0] = base + 0x00000000;
144 info->start[1] = base + 0x00004000;
145 info->start[2] = base + 0x00006000;
146 info->start[3] = base + 0x00008000;
147 for (i = 4; i < info->sector_count; i++) {
148 info->start[i] =
149 base + (i * 0x00010000) - 0x00030000;
150 }
151 } else {
152 /* set sector offsets for top boot block type */
153 i = info->sector_count - 1;
154 info->start[i--] = base + info->size - 0x00004000;
155 info->start[i--] = base + info->size - 0x00006000;
156 info->start[i--] = base + info->size - 0x00008000;
157 for (; i >= 0; i--) {
158 info->start[i] = base + i * 0x00010000;
159 }
160 }
161 }
162}
163
164
165void flash_print_info(flash_info_t * info)
166{
167 int i;
168 int k;
169 int size;
170 int erased;
171 volatile unsigned long *flash;
172
173 if (info->flash_id == FLASH_UNKNOWN) {
174 printf("missing or unknown FLASH type\n");
175 return;
176 }
177
178 switch (info->flash_id & FLASH_VENDMASK) {
179 case FLASH_MAN_AMD:
180 printf("AMD ");
181 break;
182 case FLASH_MAN_STM:
183 printf("STM ");
184 break;
185 case FLASH_MAN_FUJ:
186 printf("FUJITSU ");
187 break;
188 case FLASH_MAN_SST:
189 printf("SST ");
190 break;
191 default:
192 printf("Unknown Vendor ");
193 break;
194 }
195
196 switch (info->flash_id & FLASH_TYPEMASK) {
197 case FLASH_AM040:
198 printf("AM29F040 (512 Kbit, uniform sector size)\n");
199 break;
200 case FLASH_AM400B:
201 printf("AM29LV400B (4 Mbit, bottom boot sect)\n");
202 break;
203 case FLASH_AM400T:
204 printf("AM29LV400T (4 Mbit, top boot sector)\n");
205 break;
206 case FLASH_AM800B:
207 printf("AM29LV800B (8 Mbit, bottom boot sect)\n");
208 break;
209 case FLASH_AM800T:
210 printf("AM29LV800T (8 Mbit, top boot sector)\n");
211 break;
212 case FLASH_AMD016:
213 printf("AM29F016D (16 Mbit, uniform sector size)\n");
214 break;
215 case FLASH_AM160B:
216 printf("AM29LV160B (16 Mbit, bottom boot sect)\n");
217 break;
218 case FLASH_AM160T:
219 printf("AM29LV160T (16 Mbit, top boot sector)\n");
220 break;
221 case FLASH_AM320B:
222 printf("AM29LV320B (32 Mbit, bottom boot sect)\n");
223 break;
224 case FLASH_AM320T:
225 printf("AM29LV320T (32 Mbit, top boot sector)\n");
226 break;
227 case FLASH_AM033C:
228 printf("AM29LV033C (32 Mbit, top boot sector)\n");
229 break;
230 case FLASH_AMLV128U:
231 printf("AM29LV128U (128 Mbit * 2, top boot sector)\n");
232 break;
233 case FLASH_SST800A:
234 printf("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
235 break;
236 case FLASH_SST160A:
237 printf("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
238 break;
239 case FLASH_STMW320DT:
240 printf ("M29W320DT (32 M, top sector)\n");
241 break;
242 case FLASH_S29GL128N:
243 printf ("S29GL128N (256 Mbit, uniform sector size)\n");
244 break;
245 default:
246 printf("Unknown Chip Type\n");
247 break;
248 }
249
250 printf(" Size: %ld KB in %d Sectors\n",
251 info->size >> 10, info->sector_count);
252
253 printf(" Sector Start Addresses:");
254 for (i = 0; i < info->sector_count; ++i) {
255 /*
256 * Check if whole sector is erased
257 */
258 if (i != (info->sector_count - 1))
259 size = info->start[i + 1] - info->start[i];
260 else
261 size = info->start[0] + info->size - info->start[i];
262 erased = 1;
263 flash = (volatile unsigned long *)info->start[i];
264 size = size >> 2; /* divide by 4 for longword access */
265 for (k = 0; k < size; k++) {
266 if (*flash++ != 0xffffffff) {
267 erased = 0;
268 break;
269 }
270 }
271
272 if ((i % 5) == 0)
273 printf("\n ");
274 printf(" %08lX%s%s",
275 info->start[i],
276 erased ? " E" : " ", info->protect[i] ? "RO " : " ");
277 }
278 printf("\n");
279 return;
280}
281
282
283/*
284 * The following code cannot be run from FLASH!
285 */
286#ifdef FLASH_BASE1_PRELIM
287static ulong flash_get_size(vu_long * addr, flash_info_t * info)
288{
289 if ((ulong)addr == FLASH_BASE1_PRELIM) {
290 return flash_get_size_2(addr, info);
291 } else {
292 return flash_get_size_1(addr, info);
293 }
294}
295
296static ulong flash_get_size_1(vu_long * addr, flash_info_t * info)
297#else
298static ulong flash_get_size(vu_long * addr, flash_info_t * info)
299#endif
300{
301 short i;
302 CFG_FLASH_WORD_SIZE value;
303 ulong base = (ulong) addr;
304 volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) addr;
305
306 DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
307
308 /* Write auto select command: read Manufacturer ID */
309 addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
310 addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
311 addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00900090;
312 udelay(1000);
313
314 value = addr2[0];
315 DEBUGF("FLASH MANUFACT: %x\n", value);
316
317 switch (value) {
318 case (CFG_FLASH_WORD_SIZE) AMD_MANUFACT:
319 info->flash_id = FLASH_MAN_AMD;
320 break;
321 case (CFG_FLASH_WORD_SIZE) FUJ_MANUFACT:
322 info->flash_id = FLASH_MAN_FUJ;
323 break;
324 case (CFG_FLASH_WORD_SIZE) SST_MANUFACT:
325 info->flash_id = FLASH_MAN_SST;
326 break;
327 case (CFG_FLASH_WORD_SIZE) STM_MANUFACT:
328 info->flash_id = FLASH_MAN_STM;
329 break;
330 default:
331 info->flash_id = FLASH_UNKNOWN;
332 info->sector_count = 0;
333 info->size = 0;
334 return 0; /* no or unknown flash */
335 }
336
337 value = addr2[1]; /* device ID */
338 DEBUGF("\nFLASH DEVICEID: %x\n", value);
339
340 switch (value) {
341 case (CFG_FLASH_WORD_SIZE) AMD_ID_LV040B:
342 info->flash_id += FLASH_AM040;
343 info->sector_count = 8;
344 info->size = 0x0080000; /* => 512 ko */
345 break;
346
347 case (CFG_FLASH_WORD_SIZE) AMD_ID_F040B:
348 info->flash_id += FLASH_AM040;
349 info->sector_count = 8;
350 info->size = 0x0080000; /* => 512 ko */
351 break;
352
353 case (CFG_FLASH_WORD_SIZE) STM_ID_M29W040B:
354 info->flash_id += FLASH_AM040;
355 info->sector_count = 8;
356 info->size = 0x0080000; /* => 512 ko */
357 break;
358
359 case (CFG_FLASH_WORD_SIZE) AMD_ID_F016D:
360 info->flash_id += FLASH_AMD016;
361 info->sector_count = 32;
362 info->size = 0x00200000;
363 break; /* => 2 MB */
364
365 case (CFG_FLASH_WORD_SIZE) AMD_ID_LV033C:
366 info->flash_id += FLASH_AMDLV033C;
367 info->sector_count = 64;
368 info->size = 0x00400000;
369 break; /* => 4 MB */
370
371 case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400T:
372 info->flash_id += FLASH_AM400T;
373 info->sector_count = 11;
374 info->size = 0x00080000;
375 break; /* => 0.5 MB */
376
377 case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400B:
378 info->flash_id += FLASH_AM400B;
379 info->sector_count = 11;
380 info->size = 0x00080000;
381 break; /* => 0.5 MB */
382
383 case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800T:
384 info->flash_id += FLASH_AM800T;
385 info->sector_count = 19;
386 info->size = 0x00100000;
387 break; /* => 1 MB */
388
389 case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800B:
390 info->flash_id += FLASH_AM800B;
391 info->sector_count = 19;
392 info->size = 0x00100000;
393 break; /* => 1 MB */
394
395 case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160T:
396 info->flash_id += FLASH_AM160T;
397 info->sector_count = 35;
398 info->size = 0x00200000;
399 break; /* => 2 MB */
400
401 case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160B:
402 info->flash_id += FLASH_AM160B;
403 info->sector_count = 35;
404 info->size = 0x00200000;
405 break; /* => 2 MB */
406 default:
407 info->flash_id = FLASH_UNKNOWN;
408 return 0; /* => no or unknown flash */
409 }
410
411 /* set up sector start address table */
412 if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
413 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
414 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
415 for (i = 0; i < info->sector_count; i++)
416 info->start[i] = base + (i * 0x00010000);
417 }
418 else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
419 for (i = 0; i < info->sector_count; i++)
420 info->start[i] = base + (i * 0x00010000 * 2);
421 } else {
422 if (info->flash_id & FLASH_BTYPE) {
423 /* set sector offsets for bottom boot block type */
424 info->start[0] = base + 0x00000000;
425 info->start[1] = base + 0x00004000;
426 info->start[2] = base + 0x00006000;
427 info->start[3] = base + 0x00008000;
428 for (i = 4; i < info->sector_count; i++) {
429 info->start[i] =
430 base + (i * 0x00010000) - 0x00030000;
431 }
432 } else {
433 /* set sector offsets for top boot block type */
434 i = info->sector_count - 1;
435 info->start[i--] = base + info->size - 0x00004000;
436 info->start[i--] = base + info->size - 0x00006000;
437 info->start[i--] = base + info->size - 0x00008000;
438 for (; i >= 0; i--) {
439 info->start[i] = base + i * 0x00010000;
440 }
441 }
442 }
443
444 /* check for protected sectors */
445 for (i = 0; i < info->sector_count; i++) {
446 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
447 /* D0 = 1 if protected */
448 addr2 = (volatile CFG_FLASH_WORD_SIZE *)(info->start[i]);
449
450 /* For AMD29033C flash we need to resend the command of *
451 * reading flash protection for upper 8 Mb of flash */
452 if (i == 32) {
453 addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
454 addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
455 addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090;
456 }
457
458 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
459 info->protect[i] = 0;
460 else
461 info->protect[i] = addr2[2] & 1;
462 }
463
464 /* issue bank reset to return to read mode */
465 addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0;
466
467 return info->size;
468}
469
470static int wait_for_DQ7_1(flash_info_t * info, int sect)
471{
472 ulong start, now, last;
473 volatile CFG_FLASH_WORD_SIZE *addr =
474 (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
475
476 start = get_timer(0);
477 last = start;
478 while ((addr[0] & (CFG_FLASH_WORD_SIZE) 0x00800080) !=
479 (CFG_FLASH_WORD_SIZE) 0x00800080) {
480 if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
481 printf("Timeout\n");
482 return -1;
483 }
484 /* show that we're waiting */
485 if ((now - last) > 1000) { /* every second */
486 putc('.');
487 last = now;
488 }
489 }
490 return 0;
491}
492
493#ifdef FLASH_BASE1_PRELIM
494int flash_erase(flash_info_t * info, int s_first, int s_last)
495{
496 if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
497 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
498 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) ||
499 ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N) ||
500 ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) {
501 return flash_erase_2(info, s_first, s_last);
502 } else {
503 return flash_erase_1(info, s_first, s_last);
504 }
505}
506
507static int flash_erase_1(flash_info_t * info, int s_first, int s_last)
508#else
509int flash_erase(flash_info_t * info, int s_first, int s_last)
510#endif
511{
512 volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
513 volatile CFG_FLASH_WORD_SIZE *addr2;
514 int flag, prot, sect, l_sect;
515 int i;
516
517 if ((s_first < 0) || (s_first > s_last)) {
518 if (info->flash_id == FLASH_UNKNOWN) {
519 printf("- missing\n");
520 } else {
521 printf("- no sectors to erase\n");
522 }
523 return 1;
524 }
525
526 if (info->flash_id == FLASH_UNKNOWN) {
527 printf("Can't erase unknown flash type - aborted\n");
528 return 1;
529 }
530
531 prot = 0;
532 for (sect = s_first; sect <= s_last; ++sect) {
533 if (info->protect[sect]) {
534 prot++;
535 }
536 }
537
538 if (prot) {
539 printf("- Warning: %d protected sectors will not be erased!\n",
540 prot);
541 } else {
542 printf("\n");
543 }
544
545 l_sect = -1;
546
547 /* Disable interrupts which might cause a timeout here */
548 flag = disable_interrupts();
549
550 /* Start erase on unprotected sectors */
551 for (sect = s_first; sect <= s_last; sect++) {
552 if (info->protect[sect] == 0) { /* not protected */
553 addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
554
555 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
556 addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
557 addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
558 addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080;
559 addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
560 addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
561 addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00500050; /* block erase */
562 for (i = 0; i < 50; i++)
563 udelay(1000); /* wait 1 ms */
564 } else {
565 addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
566 addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
567 addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080;
568 addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
569 addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
570 addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00300030; /* sector erase */
571 }
572 l_sect = sect;
573 /*
574 * Wait for each sector to complete, it's more
575 * reliable. According to AMD Spec, you must
576 * issue all erase commands within a specified
577 * timeout. This has been seen to fail, especially
578 * if printf()s are included (for debug)!!
579 */
580 wait_for_DQ7_1(info, sect);
581 }
582 }
583
584 /* re-enable interrupts if necessary */
585 if (flag)
586 enable_interrupts();
587
588 /* wait at least 80us - let's wait 1 ms */
589 udelay(1000);
590
591 /* reset to read mode */
592 addr = (CFG_FLASH_WORD_SIZE *) info->start[0];
593 addr[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
594
595 printf(" done\n");
596 return 0;
597}
598
599/*-----------------------------------------------------------------------
600 * Copy memory to flash, returns:
601 * 0 - OK
602 * 1 - write timeout
603 * 2 - Flash not erased
604 */
605int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
606{
607 ulong cp, wp, data;
608 int i, l, rc;
609
610 wp = (addr & ~3); /* get lower word aligned address */
611
612 /*
613 * handle unaligned start bytes
614 */
615 if ((l = addr - wp) != 0) {
616 data = 0;
617 for (i = 0, cp = wp; i < l; ++i, ++cp) {
618 data = (data << 8) | (*(uchar *) cp);
619 }
620 for (; i < 4 && cnt > 0; ++i) {
621 data = (data << 8) | *src++;
622 --cnt;
623 ++cp;
624 }
625 for (; cnt == 0 && i < 4; ++i, ++cp) {
626 data = (data << 8) | (*(uchar *) cp);
627 }
628
629 if ((rc = write_word(info, wp, data)) != 0) {
630 return rc;
631 }
632 wp += 4;
633 }
634
635 /*
636 * handle word aligned part
637 */
638 while (cnt >= 4) {
639 data = 0;
640 for (i = 0; i < 4; ++i) {
641 data = (data << 8) | *src++;
642 }
643 if ((rc = write_word(info, wp, data)) != 0) {
644 return rc;
645 }
646 wp += 4;
647 cnt -= 4;
648 }
649
650 if (cnt == 0) {
651 return 0;
652 }
653
654 /*
655 * handle unaligned tail bytes
656 */
657 data = 0;
658 for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
659 data = (data << 8) | *src++;
660 --cnt;
661 }
662 for (; i < 4; ++i, ++cp) {
663 data = (data << 8) | (*(uchar *) cp);
664 }
665
666 return (write_word(info, wp, data));
667}
668
669/*-----------------------------------------------------------------------
670 * Copy memory to flash, returns:
671 * 0 - OK
672 * 1 - write timeout
673 * 2 - Flash not erased
674 */
675#ifdef FLASH_BASE1_PRELIM
676static int write_word(flash_info_t * info, ulong dest, ulong data)
677{
678 if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
679 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
680 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) ||
681 ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N) ||
682 ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) {
683 return write_word_2(info, dest, data);
684 } else {
685 return write_word_1(info, dest, data);
686 }
687}
688
689static int write_word_1(flash_info_t * info, ulong dest, ulong data)
690#else
691static int write_word(flash_info_t * info, ulong dest, ulong data)
692#endif
693{
694 volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
695 volatile CFG_FLASH_WORD_SIZE *dest2 = (CFG_FLASH_WORD_SIZE *) dest;
696 volatile CFG_FLASH_WORD_SIZE *data2 = (CFG_FLASH_WORD_SIZE *) & data;
697 ulong start;
698 int i;
699
700 /* Check if Flash is (sufficiently) erased */
701 if ((*((vu_long *)dest) & data) != data) {
702 return 2;
703 }
704
705 for (i = 0; i < 4 / sizeof(CFG_FLASH_WORD_SIZE); i++) {
706 int flag;
707
708 /* Disable interrupts which might cause a timeout here */
709 flag = disable_interrupts();
710
711 addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
712 addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
713 addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00A000A0;
714
715 dest2[i] = data2[i];
716
717 /* re-enable interrupts if necessary */
718 if (flag)
719 enable_interrupts();
720
721 /* data polling for D7 */
722 start = get_timer(0);
723 while ((dest2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080) !=
724 (data2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080)) {
725
726 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
727 return 1;
728 }
729 }
730 }
731
732 return 0;
733}
734
735#ifdef FLASH_BASE1_PRELIM
736
737/*
738 * The following code cannot be run from FLASH!
739 */
740static ulong flash_get_size_2(vu_long * addr, flash_info_t * info)
741{
742 short i;
743 CFG_FLASH_CHAR_SIZE value;
744 ulong base = (ulong) addr;
745 volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) addr;
746
747 DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
748
749 /* Write auto select command: read Manufacturer ID */
750 addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
751 addr2[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
752 addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090;
753 udelay(1000);
754
755 value = (CFG_FLASH_CHAR_SIZE)addr2[0];
756 DEBUGF("FLASH MANUFACT: %x\n", value);
757
758 switch (value) {
759 case (CFG_FLASH_CHAR_SIZE) AMD_MANUFACT:
760 info->flash_id = FLASH_MAN_AMD;
761 break;
762 case (CFG_FLASH_CHAR_SIZE) FUJ_MANUFACT:
763 info->flash_id = FLASH_MAN_FUJ;
764 break;
765 case (CFG_FLASH_CHAR_SIZE) SST_MANUFACT:
766 info->flash_id = FLASH_MAN_SST;
767 break;
768 case (CFG_FLASH_CHAR_SIZE) STM_MANUFACT:
769 info->flash_id = FLASH_MAN_STM;
770 break;
771 default:
772 info->flash_id = FLASH_UNKNOWN;
773 info->sector_count = 0;
774 info->size = 0;
775 return 0; /* no or unknown flash */
776 }
777
778 value = (CFG_FLASH_CHAR_SIZE)addr2[2]; /* device ID */
779 DEBUGF("\nFLASH DEVICEID: %x\n", value);
780
781 switch (value) {
782 case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV040B:
783 info->flash_id += FLASH_AM040;
784 info->sector_count = 8;
785 info->size = 0x0080000; /* => 512 ko */
786 break;
787
788 case (CFG_FLASH_CHAR_SIZE) AMD_ID_F040B:
789 info->flash_id += FLASH_AM040;
790 info->sector_count = 8;
791 info->size = 0x0080000; /* => 512 ko */
792 break;
793
794 case (CFG_FLASH_CHAR_SIZE) STM_ID_M29W040B:
795 info->flash_id += FLASH_AM040;
796 info->sector_count = 8;
797 info->size = 0x0080000; /* => 512 ko */
798 break;
799
800 case (CFG_FLASH_CHAR_SIZE) AMD_ID_F016D:
801 info->flash_id += FLASH_AMD016;
802 info->sector_count = 32;
803 info->size = 0x00200000;
804 break; /* => 2 MB */
805
806 case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV033C:
807 info->flash_id += FLASH_AMDLV033C;
808 info->sector_count = 64;
809 info->size = 0x00400000;
810 break; /* => 4 MB */
811
812 case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV400T:
813 info->flash_id += FLASH_AM400T;
814 info->sector_count = 11;
815 info->size = 0x00080000;
816 break; /* => 0.5 MB */
817
818 case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV400B:
819 info->flash_id += FLASH_AM400B;
820 info->sector_count = 11;
821 info->size = 0x00080000;
822 break; /* => 0.5 MB */
823
824 case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV800T:
825 info->flash_id += FLASH_AM800T;
826 info->sector_count = 19;
827 info->size = 0x00100000;
828 break; /* => 1 MB */
829
830 case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV800B:
831 info->flash_id += FLASH_AM800B;
832 info->sector_count = 19;
833 info->size = 0x00100000;
834 break; /* => 1 MB */
835
836 case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV160T:
837 info->flash_id += FLASH_AM160T;
838 info->sector_count = 35;
839 info->size = 0x00200000;
840 break; /* => 2 MB */
841
842 case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV160B:
843 info->flash_id += FLASH_AM160B;
844 info->sector_count = 35;
845 info->size = 0x00200000;
846 break; /* => 2 MB */
847 case (CFG_FLASH_CHAR_SIZE) AMD_ID_MIRROR:
848 if ((CFG_FLASH_CHAR_SIZE)addr2[0x1c] == (CFG_FLASH_CHAR_SIZE)AMD_ID_LV128U_2
849 && (CFG_FLASH_CHAR_SIZE)addr2[0x1e] == (CFG_FLASH_CHAR_SIZE)AMD_ID_LV128U_3) {
850 info->flash_id += FLASH_AMLV128U;
851 info->sector_count = 256;
852 info->size = 0x01000000;
853 } else if ((CFG_FLASH_CHAR_SIZE)addr2[0x1c] == (CFG_FLASH_CHAR_SIZE)AMD_ID_GL128N_2
854 && (CFG_FLASH_CHAR_SIZE)addr2[0x1e] == (CFG_FLASH_CHAR_SIZE)AMD_ID_GL128N_3 ) {
855 info->flash_id += FLASH_S29GL128N;
856 info->sector_count = 128;
857 info->size = 0x01000000;
858 }
859 else
860 info->flash_id = FLASH_UNKNOWN;
861 break; /* => 2 MB */
862
863 default:
864 info->flash_id = FLASH_UNKNOWN;
865 return 0; /* => no or unknown flash */
866 }
867
868 /* set up sector start address table */
869 if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
870 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
871 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
872 for (i = 0; i < info->sector_count; i++)
873 info->start[i] = base + (i * 0x00010000);
874 } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
875 for (i = 0; i < info->sector_count; i++)
876 info->start[i] = base + (i * 0x00010000);
877 } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N ) {
878 for (i = 0; i < info->sector_count; i++)
879 info->start[i] = base + (i * 0x00020000);
880 } else {
881 if (info->flash_id & FLASH_BTYPE) {
882 /* set sector offsets for bottom boot block type */
883 info->start[0] = base + 0x00000000;
884 info->start[1] = base + 0x00004000;
885 info->start[2] = base + 0x00006000;
886 info->start[3] = base + 0x00008000;
887 for (i = 4; i < info->sector_count; i++) {
888 info->start[i] =
889 base + (i * 0x00010000) - 0x00030000;
890 }
891 } else {
892 /* set sector offsets for top boot block type */
893 i = info->sector_count - 1;
894 info->start[i--] = base + info->size - 0x00004000;
895 info->start[i--] = base + info->size - 0x00006000;
896 info->start[i--] = base + info->size - 0x00008000;
897 for (; i >= 0; i--) {
898 info->start[i] = base + i * 0x00010000;
899 }
900 }
901 }
902
903 /* check for protected sectors */
904 for (i = 0; i < info->sector_count; i++) {
905 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
906 /* D0 = 1 if protected */
907 addr2 = (volatile CFG_FLASH_WORD_SIZE *)(info->start[i]);
908
909 /* For AMD29033C flash we need to resend the command of *
910 * reading flash protection for upper 8 Mb of flash */
911 if (i == 32) {
912 addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
913 addr2[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
914 addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090;
915 }
916
917 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
918 info->protect[i] = 0;
919 else
920 info->protect[i] = (CFG_FLASH_CHAR_SIZE)addr2[4] & 1;
921 }
922
923 /* issue bank reset to return to read mode */
924 addr2[0] = (CFG_FLASH_WORD_SIZE) 0xF0F0F0F0;
925 return info->size;
926}
927
928static int wait_for_DQ7_2(flash_info_t * info, int sect)
929{
930 ulong start, now, last;
931 volatile CFG_FLASH_WORD_SIZE *addr =
932 (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
933
934 start = get_timer(0);
935 last = start;
936 while (((CFG_FLASH_WORD_SIZE)addr[0] & (CFG_FLASH_WORD_SIZE) 0x80808080) !=
937 (CFG_FLASH_WORD_SIZE) 0x80808080) {
938 if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
939 printf("Timeout\n");
940 return -1;
941 }
942 /* show that we're waiting */
943 if ((now - last) > 1000) { /* every second */
944 putc('.');
945 last = now;
946 }
947 }
948 return 0;
949}
950
951static int flash_erase_2(flash_info_t * info, int s_first, int s_last)
952{
953 volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
954 volatile CFG_FLASH_WORD_SIZE *addr2;
955 int flag, prot, sect, l_sect;
956 int i;
957
958 if ((s_first < 0) || (s_first > s_last)) {
959 if (info->flash_id == FLASH_UNKNOWN) {
960 printf("- missing\n");
961 } else {
962 printf("- no sectors to erase\n");
963 }
964 return 1;
965 }
966
967 if (info->flash_id == FLASH_UNKNOWN) {
968 printf("Can't erase unknown flash type - aborted\n");
969 return 1;
970 }
971
972 prot = 0;
973 for (sect = s_first; sect <= s_last; ++sect) {
974 if (info->protect[sect]) {
975 prot++;
976 }
977 }
978
979 if (prot) {
980 printf("- Warning: %d protected sectors will not be erased!\n",
981 prot);
982 } else {
983 printf("\n");
984 }
985
986 l_sect = -1;
987
988 /* Disable interrupts which might cause a timeout here */
989 flag = disable_interrupts();
990
991 /* Start erase on unprotected sectors */
992 for (sect = s_first; sect <= s_last; sect++) {
993 if (info->protect[sect] == 0) { /* not protected */
994 addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
995
996 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
997 addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
998 addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
999 addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x80808080;
1000 addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
1001 addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
1002 addr2[0] = (CFG_FLASH_WORD_SIZE) 0x50505050; /* block erase */
1003 for (i = 0; i < 50; i++)
1004 udelay(1000); /* wait 1 ms */
1005 } else {
1006 addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
1007 addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
1008 addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x80808080;
1009 addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
1010 addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
1011 addr2[0] = (CFG_FLASH_WORD_SIZE) 0x30303030; /* sector erase */
1012 }
1013 l_sect = sect;
1014 /*
1015 * Wait for each sector to complete, it's more
1016 * reliable. According to AMD Spec, you must
1017 * issue all erase commands within a specified
1018 * timeout. This has been seen to fail, especially
1019 * if printf()s are included (for debug)!!
1020 */
1021 wait_for_DQ7_2(info, sect);
1022 }
1023 }
1024
1025 /* re-enable interrupts if necessary */
1026 if (flag)
1027 enable_interrupts();
1028
1029 /* wait at least 80us - let's wait 1 ms */
1030 udelay(1000);
1031
1032 /* reset to read mode */
1033 addr = (CFG_FLASH_WORD_SIZE *) info->start[0];
1034 addr[0] = (CFG_FLASH_WORD_SIZE) 0xF0F0F0F0; /* reset bank */
1035
1036 printf(" done\n");
1037 return 0;
1038}
1039
1040static int write_word_2(flash_info_t * info, ulong dest, ulong data)
1041{
1042 volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
1043 volatile CFG_FLASH_WORD_SIZE *dest2 = (CFG_FLASH_WORD_SIZE *) dest;
1044 volatile CFG_FLASH_WORD_SIZE *data2 = (CFG_FLASH_WORD_SIZE *) & data;
1045 ulong start;
1046 int i;
1047
1048 /* Check if Flash is (sufficiently) erased */
1049 if ((*((vu_long *)dest) & data) != data) {
1050 return 2;
1051 }
1052
1053 for (i = 0; i < 4 / sizeof(CFG_FLASH_WORD_SIZE); i++) {
1054 int flag;
1055
1056 /* Disable interrupts which might cause a timeout here */
1057 flag = disable_interrupts();
1058
1059 addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
1060 addr2[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
1061 addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xA0A0A0A0;
1062
1063 dest2[i] = data2[i];
1064
1065 /* re-enable interrupts if necessary */
1066 if (flag)
1067 enable_interrupts();
1068
1069 /* data polling for D7 */
1070 start = get_timer(0);
1071 while ((dest2[i] & (CFG_FLASH_WORD_SIZE) 0x80808080) !=
1072 (data2[i] & (CFG_FLASH_WORD_SIZE) 0x80808080)) {
1073
1074 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
1075 return 1;
1076 }
1077 }
1078 }
1079
1080 return 0;
1081}
1082
1083#endif /* FLASH_BASE1_PRELIM */
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