6 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 * See file CREDITS for list of people who contributed to this
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.
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.
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,
29 #include <asm/u-boot.h>
30 #include <asm/processor.h>
32 flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
35 #ifdef CFG_FLASH_16BIT
36 #define FLASH_WORD_SIZE unsigned short
37 #define FLASH_ID_MASK 0xFFFF
39 #define FLASH_WORD_SIZE unsigned long
40 #define FLASH_ID_MASK 0xFFFFFFFF
43 /*-----------------------------------------------------------------------
46 /* stolen from esteem192e/flash.c */
47 ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info);
49 #ifndef CFG_FLASH_16BIT
50 static int write_word (flash_info_t *info, ulong dest, ulong data);
52 static int write_short (flash_info_t *info, ulong dest, ushort data);
54 static void flash_get_offsets (ulong base, flash_info_t *info);
57 /*-----------------------------------------------------------------------
60 unsigned long flash_init (void)
62 unsigned long size_b0, size_b1;
65 unsigned long base_b0, base_b1;
67 /* Init: no FLASHes known */
68 for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
69 flash_info[i].flash_id = FLASH_UNKNOWN;
72 /* Static FLASH Bank configuration here - FIXME XXX */
74 size_b0 = flash_get_size((volatile FLASH_WORD_SIZE *)FLASH_BASE1_PRELIM, &flash_info[0]);
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);
82 if (CFG_MAX_FLASH_BANKS == 1)
85 flash_get_offsets (FLASH_BASE1_PRELIM, &flash_info[0]);
87 /* Monitor protection ON by default */
89 (void)flash_protect(FLAG_PROTECT_SET,
90 FLASH_BASE1_PRELIM-CFG_MONITOR_LEN+size_b0,
91 FLASH_BASE1_PRELIM-1+size_b0,
94 (void)flash_protect(FLAG_PROTECT_SET,
96 CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
100 flash_info[0].size = size_b0;
105 size_b1 = flash_get_size((volatile FLASH_WORD_SIZE *)FLASH_BASE1_PRELIM, &flash_info[1]);
107 /* Re-do sizing to get full correct info */
110 mtdcr(ebccfga, pb0cr);
111 pbcr = mfdcr(ebccfgd);
112 mtdcr(ebccfga, pb0cr);
114 pbcr = (pbcr & 0x0001ffff) | base_b1 | (((size_b1/1024/1024)-1)<<17);
115 mtdcr(ebccfgd, pbcr);
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);
128 size_b0 = flash_get_size((volatile FLASH_WORD_SIZE *)base_b0, &flash_info[0]);
130 flash_get_offsets (base_b0, &flash_info[0]);
132 /* monitor protection ON by default */
134 (void)flash_protect(FLAG_PROTECT_SET,
135 FLASH_BASE1_PRELIM-CFG_MONITOR_LEN+size_b0,
136 FLASH_BASE1_PRELIM-1+size_b0,
139 (void)flash_protect(FLAG_PROTECT_SET,
141 CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
146 /* Re-do sizing to get full correct info */
147 size_b1 = flash_get_size((volatile FLASH_WORD_SIZE *)base_b1, &flash_info[1]);
149 flash_get_offsets (base_b1, &flash_info[1]);
151 /* monitor protection ON by default */
152 (void)flash_protect(FLAG_PROTECT_SET,
153 base_b1+size_b1-CFG_MONITOR_LEN,
156 /* monitor protection OFF by default (one is enough) */
157 (void)flash_protect(FLAG_PROTECT_CLEAR,
158 base_b0+size_b0-CFG_MONITOR_LEN,
162 flash_info[1].flash_id = FLASH_UNKNOWN;
163 flash_info[1].sector_count = -1;
166 flash_info[0].size = size_b0;
167 flash_info[1].size = size_b1;
169 return (size_b0 + size_b1);
173 /*-----------------------------------------------------------------------
176 static void flash_get_offsets (ulong base, flash_info_t *info)
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);
188 else if (info->flash_id & FLASH_BTYPE) {
189 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
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;
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;
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;
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;
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) {
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;
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;
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;
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;
286 /*-----------------------------------------------------------------------
289 void flash_print_info (flash_info_t *info)
293 uchar botboot[]=", bottom boot sect)\n";
294 uchar topboot[]=", top boot sector)\n";
296 if (info->flash_id == FLASH_UNKNOWN) {
297 printf ("missing or unknown FLASH type\n");
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;
310 if (info->flash_id & 0x0001 ) {
316 switch (info->flash_id & FLASH_TYPEMASK) {
317 case FLASH_AM400B: printf ("AM29LV400B (4 Mbit%s",boottype);
319 case FLASH_AM400T: printf ("AM29LV400T (4 Mbit%s",boottype);
321 case FLASH_AM800B: printf ("AM29LV800B (8 Mbit%s",boottype);
323 case FLASH_AM800T: printf ("AM29LV800T (8 Mbit%s",boottype);
325 case FLASH_AM160B: printf ("AM29LV160B (16 Mbit%s",boottype);
327 case FLASH_AM160T: printf ("AM29LV160T (16 Mbit%s",boottype);
329 case FLASH_AM320B: printf ("AM29LV320B (32 Mbit%s",boottype);
331 case FLASH_AM320T: printf ("AM29LV320T (32 Mbit%s",boottype);
333 case FLASH_INTEL800B: printf ("INTEL28F800B (8 Mbit%s",boottype);
335 case FLASH_INTEL800T: printf ("INTEL28F800T (8 Mbit%s",boottype);
337 case FLASH_INTEL160B: printf ("INTEL28F160B (16 Mbit%s",boottype);
339 case FLASH_INTEL160T: printf ("INTEL28F160T (16 Mbit%s",boottype);
341 case FLASH_INTEL320B: printf ("INTEL28F320B (32 Mbit%s",boottype);
343 case FLASH_INTEL320T: printf ("INTEL28F320T (32 Mbit%s",boottype);
345 case FLASH_AMDL322T: printf ("AM29DL322T (32 Mbit%s",boottype);
348 #if 0 /* enable when devices are available */
350 case FLASH_INTEL640B: printf ("INTEL28F640B (64 Mbit%s",boottype);
352 case FLASH_INTEL640T: printf ("INTEL28F640T (64 Mbit%s",boottype);
355 case INTEL_ID_28F320J3A: printf ("INTEL28F320JA3 (32 Mbit%s",boottype);
357 case INTEL_ID_28F640J3A: printf ("INTEL28F640JA3 (64 Mbit%s",boottype);
359 case INTEL_ID_28F128J3A: printf ("INTEL28F128JA3 (128 Mbit%s",boottype);
362 default: printf ("Unknown Chip Type\n");
366 printf (" Size: %ld MB in %d Sectors\n",
367 info->size >> 20, info->sector_count);
369 printf (" Sector Start Addresses:");
370 for (i=0; i<info->sector_count; ++i) {
375 info->protect[i] ? " (RO)" : " "
383 /*-----------------------------------------------------------------------
387 /*-----------------------------------------------------------------------
391 * The following code cannot be run from FLASH!
393 ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info)
396 ulong base = (ulong)addr;
397 FLASH_WORD_SIZE value;
399 /* Write auto select command: read Manufacturer ID */
402 #ifndef CFG_FLASH_16BIT
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.
410 addr[0x0000] = 0x00900090;
411 if(addr[0x0000] != 0x00890089){
412 addr[0x0555] = 0x00AA00AA;
413 addr[0x02AA] = 0x00550055;
414 addr[0x0555] = 0x00900090;
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.
423 addr[0x0000] = 0x0090;
425 if(addr[0x0000] != 0x0089){
426 addr[0x0555] = 0x00AA;
427 addr[0x02AA] = 0x0055;
428 addr[0x0555] = 0x0090;
434 case (AMD_MANUFACT & FLASH_ID_MASK):
435 info->flash_id = FLASH_MAN_AMD;
437 case (FUJ_MANUFACT & FLASH_ID_MASK):
438 info->flash_id = FLASH_MAN_FUJ;
440 case (STM_MANUFACT & FLASH_ID_MASK):
441 info->flash_id = FLASH_MAN_STM;
443 case (SST_MANUFACT & FLASH_ID_MASK):
444 info->flash_id = FLASH_MAN_SST;
446 case (INTEL_MANUFACT & FLASH_ID_MASK):
447 info->flash_id = FLASH_MAN_INTEL;
450 info->flash_id = FLASH_UNKNOWN;
451 info->sector_count = 0;
453 return (0); /* no or unknown flash */
457 value = addr[1]; /* device ID */
461 case (AMD_ID_LV400T & FLASH_ID_MASK):
462 info->flash_id += FLASH_AM400T;
463 info->sector_count = 11;
464 info->size = 0x00100000;
467 case (AMD_ID_LV400B & FLASH_ID_MASK):
468 info->flash_id += FLASH_AM400B;
469 info->sector_count = 11;
470 info->size = 0x00100000;
473 case (AMD_ID_LV800T & FLASH_ID_MASK):
474 info->flash_id += FLASH_AM800T;
475 info->sector_count = 19;
476 info->size = 0x00200000;
479 case (AMD_ID_LV800B & FLASH_ID_MASK):
480 info->flash_id += FLASH_AM800B;
481 info->sector_count = 19;
482 info->size = 0x00200000;
485 case (AMD_ID_LV160T & FLASH_ID_MASK):
486 info->flash_id += FLASH_AM160T;
487 info->sector_count = 35;
488 info->size = 0x00400000;
491 case (AMD_ID_LV160B & FLASH_ID_MASK):
492 info->flash_id += FLASH_AM160B;
493 info->sector_count = 35;
494 info->size = 0x00400000;
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;
503 case (AMD_ID_LV320B & FLASH_ID_MASK):
504 info->flash_id += FLASH_AM320B;
505 info->sector_count = 67;
506 info->size = 0x00800000;
510 case (AMD_ID_DL322T & FLASH_ID_MASK):
511 info->flash_id += FLASH_AMDL322T;
512 info->sector_count = 71;
513 info->size = 0x00800000;
516 case (INTEL_ID_28F800B3T & FLASH_ID_MASK):
517 info->flash_id += FLASH_INTEL800T;
518 info->sector_count = 23;
519 info->size = 0x00200000;
522 case (INTEL_ID_28F800B3B & FLASH_ID_MASK):
523 info->flash_id += FLASH_INTEL800B;
524 info->sector_count = 23;
525 info->size = 0x00200000;
528 case (INTEL_ID_28F160B3T & FLASH_ID_MASK):
529 info->flash_id += FLASH_INTEL160T;
530 info->sector_count = 39;
531 info->size = 0x00400000;
534 case (INTEL_ID_28F160B3B & FLASH_ID_MASK):
535 info->flash_id += FLASH_INTEL160B;
536 info->sector_count = 39;
537 info->size = 0x00400000;
540 case (INTEL_ID_28F320B3T & FLASH_ID_MASK):
541 info->flash_id += FLASH_INTEL320T;
542 info->sector_count = 71;
543 info->size = 0x00800000;
546 case (INTEL_ID_28F320B3B & FLASH_ID_MASK):
547 info->flash_id += FLASH_AM320B;
548 info->sector_count = 71;
549 info->size = 0x00800000;
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 */
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 */
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 */
583 info->flash_id = FLASH_UNKNOWN;
584 return (0); /* => no or unknown flash */
587 flash_get_offsets(base, info);
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;
598 * Prevent writes to uninitialized FLASH.
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 */
605 *addr = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */
613 /*-----------------------------------------------------------------------
616 int flash_erase (flash_info_t *info, int s_first, int s_last)
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;
624 if ((s_first < 0) || (s_first > s_last)) {
625 if (info->flash_id == FLASH_UNKNOWN) {
626 printf ("- missing\n");
628 printf ("- no sectors to erase\n");
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");
641 for (sect=s_first; sect<=s_last; ++sect) {
642 if (info->protect[sect]) {
648 printf ("- Warning: %d protected sectors will not be erased!\n",
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;
666 addr[0x0555] = 0x00AA;
667 addr[0x02AA] = 0x0055;
668 addr[0x0555] = 0x0080;
669 addr[0x0555] = 0x00AA;
670 addr[0x02AA] = 0x0055;
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);
681 /* re-enable interrupts if necessary */
685 /* wait at least 80us - let's wait 1 ms */
689 * We wait for the last triggered sector
694 start = get_timer (0);
696 addr = (volatile FLASH_WORD_SIZE*)(info->start[l_sect]);
697 while ((addr[0] & (0x00800080&FLASH_ID_MASK)) !=
698 (0x00800080&FLASH_ID_MASK) )
700 if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
701 printf ("Timeout\n");
704 /* show that we're waiting */
705 if ((now - last) > 1000) { /* every second */
712 /* reset to read mode */
713 addr = (volatile FLASH_WORD_SIZE *)info->start[0];
714 addr[0] = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */
718 for (sect = s_first; sect<=s_last; sect++) {
719 if (info->protect[sect] == 0) { /* not protected */
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;
731 barf = addr[0] & 0x0000003A;
735 addr = (vu_short*)(info->start[sect]);
738 while(!(addr[0] & 0x0080)); /* wait for error or finish */
739 if( addr[0] & 0x003A) /* check for error */
740 barf = addr[0] & 0x003A;
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");
754 addr = (volatile FLASH_WORD_SIZE *)info->start[0];
755 addr[0] = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */
764 /*-----------------------------------------------------------------------
767 /*flash_info_t *addr2info (ulong addr)
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)) ) {
782 /*-----------------------------------------------------------------------
783 * Copy memory to flash.
784 * Make sure all target addresses are within Flash bounds,
785 * and no protected sectors are hit.
789 * 2 - Flash not erased
790 * 4 - target range includes protected sectors
791 * 8 - target address not in Flash memory
794 /*int flash_write (uchar *src, ulong addr, ulong cnt)
797 ulong end = addr + cnt - 1;
798 flash_info_t *info_first = addr2info (addr);
799 flash_info_t *info_last = addr2info (end );
806 if (!info_first || !info_last) {
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];
816 if ((end >= info->start[i]) && (addr < e_addr) &&
817 (info->protect[i] != 0) ) {
823 */ /* finally write data to flash */
824 /* for (info = info_first; info <= info_last && cnt>0; ++info) {
827 len = info->start[0] + info->size - addr;
830 if ((i = write_buff(info, src, addr, len)) != 0) {
840 /*-----------------------------------------------------------------------
841 * Copy memory to flash, returns:
844 * 2 - Flash not erased
847 int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
849 #ifndef CFG_FLASH_16BIT
858 #ifndef CFG_FLASH_16BIT
861 wp = (addr & ~3); /* get lower word aligned address */
864 * handle unaligned start bytes
866 if ((l = addr - wp) != 0) {
868 for (i=0, cp=wp; i<l; ++i, ++cp) {
869 data = (data << 8) | (*(uchar *)cp);
871 for (; i<4 && cnt>0; ++i) {
872 data = (data << 8) | *src++;
876 for (; cnt==0 && i<4; ++i, ++cp) {
877 data = (data << 8) | (*(uchar *)cp);
880 if ((rc = write_word(info, wp, data)) != 0) {
887 * handle word aligned part
891 for (i=0; i<4; ++i) {
892 data = (data << 8) | *src++;
894 if ((rc = write_word(info, wp, data)) != 0) {
906 * handle unaligned tail bytes
909 for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
910 data = (data << 8) | *src++;
913 for (; i<4; ++i, ++cp) {
914 data = (data << 8) | (*(uchar *)cp);
917 return (write_word(info, wp, data));
920 wp = (addr & ~1); /* get lower word aligned address */
923 * handle unaligned start byte
927 data = (data << 8) | *src++;
929 if ((rc = write_short(info, wp, data)) != 0) {
936 * handle word aligned part
938 /* l = 0; used for debuging */
941 for (i=0; i<2; ++i) {
942 data = (data << 8) | *src++;
948 } used for debuging */
950 if ((rc = write_short(info, wp, data)) != 0) {
962 * handle unaligned tail bytes
965 for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) {
966 data = (data << 8) | *src++;
969 for (; i<2; ++i, ++cp) {
970 data = (data << 8) | (*(uchar *)cp);
973 return (write_short(info, wp, data));
979 /*-----------------------------------------------------------------------
980 * Write a word to Flash, returns:
983 * 2 - Flash not erased
985 #ifndef CFG_FLASH_16BIT
986 static int write_word (flash_info_t *info, ulong dest, ulong data)
988 vu_long *addr = (vu_long*)(info->start[0]);
993 /* Check if Flash is (sufficiently) erased */
994 if ((*((vu_long *)dest) & data) != data) {
998 /* Disable interrupts which might cause a timeout here */
999 flag = disable_interrupts();
1001 if(info->flash_id > FLASH_AMD_COMP) {
1003 addr[0x0555] = 0x00AA00AA;
1004 addr[0x02AA] = 0x00550055;
1005 addr[0x0555] = 0x00A000A0;
1010 *((vu_long *)dest) = data;
1012 /* re-enable interrupts if necessary */
1014 enable_interrupts();
1016 /* data polling for D7 */
1017 start = get_timer (0);
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) {
1026 while(!(addr[0] & 0x00800080)) { /* wait for error or finish */
1027 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
1031 if( addr[0] & 0x003A003A) { /* check for error */
1032 barf = addr[0] & 0x003A0000;
1036 barf = addr[0] & 0x0000003A;
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");
1051 static int write_short (flash_info_t *info, ulong dest, ushort data)
1053 vu_short *addr = (vu_short*)(info->start[0]);
1057 /* Check if Flash is (sufficiently) erased */
1058 if ((*((vu_short *)dest) & data) != data) {
1062 /* Disable interrupts which might cause a timeout here */
1063 flag = disable_interrupts();
1065 if(info->flash_id < FLASH_AMD_COMP) {
1067 addr[0x0555] = 0x00AA;
1068 addr[0x02AA] = 0x0055;
1069 addr[0x0555] = 0x00A0;
1075 *((vu_short *)dest) = data;
1077 /* re-enable interrupts if necessary */
1079 enable_interrupts();
1081 /* data polling for D7 */
1082 start = get_timer (0);
1084 if(info->flash_id < FLASH_AMD_COMP) {
1086 while ((*((vu_short *)dest) & 0x0080) != (data & 0x0080)) {
1087 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
1094 while(!(addr[0] & 0x0080)){ /* wait for error or finish */
1095 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) return (1);
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");
1108 while(!(addr[0] & 0x0080)){ /* wait for error or finish */
1109 if (get_timer(start) > CFG_FLASH_WRITE_TOUT) return (1);
1119 /*-----------------------------------------------------------------------