3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * (C) Copyright 2002 Jun Gu <jung@artesyncp.com>
6 * Add support for Am29F016D and dynamic switch setting.
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 * Wait for completion of each sector erase command issued
31 * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
35 #include <asm/ppc4xx.h>
36 #include <asm/processor.h>
37 #include <asm/ppc440.h>
41 #define DEBUGF(x...) printf(x)
46 flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
49 * Mark big flash bank (16 bit instead of 8 bit access) in address with bit 0
51 static unsigned long flash_addr_table[][CONFIG_SYS_MAX_FLASH_BANKS] = {
52 {0xfff00000, 0xfff80000, 0xe7c00001}, /* 0:boot from small flash */
53 {0x00000000, 0x00000000, 0x00000000}, /* 1:boot from pci 66 */
54 {0x00000000, 0x00000000, 0x00000000}, /* 2:boot from nand flash */
55 {0xe7F00000, 0xe7F80000, 0xFFC00001}, /* 3:boot from big flash 33*/
56 {0xe7F00000, 0xe7F80000, 0xFFC00001}, /* 4:boot from big flash 66*/
57 {0x00000000, 0x00000000, 0x00000000}, /* 5:boot from */
58 {0x00000000, 0x00000000, 0x00000000}, /* 6:boot from pci 66 */
59 {0x00000000, 0x00000000, 0x00000000}, /* 7:boot from */
60 {0xfff00000, 0xfff80000, 0xe7c00001}, /* 8:boot from small flash */
64 * include common flash code (for amcc boards)
66 /*-----------------------------------------------------------------------
69 static int write_word(flash_info_t * info, ulong dest, ulong data);
70 #ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
71 static int write_word_1(flash_info_t * info, ulong dest, ulong data);
72 static int write_word_2(flash_info_t * info, ulong dest, ulong data);
73 static int flash_erase_1(flash_info_t * info, int s_first, int s_last);
74 static int flash_erase_2(flash_info_t * info, int s_first, int s_last);
75 static ulong flash_get_size_1(vu_long * addr, flash_info_t * info);
76 static ulong flash_get_size_2(vu_long * addr, flash_info_t * info);
79 void flash_print_info(flash_info_t * info)
85 volatile unsigned long *flash;
87 if (info->flash_id == FLASH_UNKNOWN) {
88 printf("missing or unknown FLASH type\n");
92 switch (info->flash_id & FLASH_VENDMASK) {
109 printf("Unknown Vendor ");
113 switch (info->flash_id & FLASH_TYPEMASK) {
115 printf("AM29F040 (512 Kbit, uniform sector size)\n");
118 printf("AM29LV400B (4 Mbit, bottom boot sect)\n");
121 printf("AM29LV400T (4 Mbit, top boot sector)\n");
124 printf("AM29LV800B (8 Mbit, bottom boot sect)\n");
127 printf("AM29LV800T (8 Mbit, top boot sector)\n");
130 printf("AM29F016D (16 Mbit, uniform sector size)\n");
133 printf("AM29LV160B (16 Mbit, bottom boot sect)\n");
136 printf("AM29LV160T (16 Mbit, top boot sector)\n");
139 printf("AM29LV320B (32 Mbit, bottom boot sect)\n");
142 printf("AM29LV320T (32 Mbit, top boot sector)\n");
145 printf("AM29LV033C (32 Mbit, top boot sector)\n");
148 printf("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
151 printf("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
153 case FLASH_STMW320DT:
154 printf ("M29W320DT (32 M, top sector)\n");
157 printf ("MXLV320T (32 Mbit, top sector)\n");
160 printf("Unknown Chip Type\n");
164 printf(" Size: %ld KB in %d Sectors\n",
165 info->size >> 10, info->sector_count);
167 printf(" Sector Start Addresses:");
168 for (i = 0; i < info->sector_count; ++i) {
170 * Check if whole sector is erased
172 if (i != (info->sector_count - 1))
173 size = info->start[i + 1] - info->start[i];
175 size = info->start[0] + info->size - info->start[i];
177 flash = (volatile unsigned long *)info->start[i];
178 size = size >> 2; /* divide by 4 for longword access */
179 for (k = 0; k < size; k++) {
180 if (*flash++ != 0xffffffff) {
191 info->protect[i] ? "RO " : " ");
199 * The following code cannot be run from FLASH!
201 #ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
202 static ulong flash_get_size(vu_long * addr, flash_info_t * info)
204 /* bit 0 used for big flash marking */
205 if ((ulong)addr & 0x1)
206 return flash_get_size_2((vu_long *)((ulong)addr & 0xfffffffe), info);
208 return flash_get_size_1(addr, info);
211 static ulong flash_get_size_1(vu_long * addr, flash_info_t * info)
213 static ulong flash_get_size(vu_long * addr, flash_info_t * info)
217 CONFIG_SYS_FLASH_WORD_SIZE value;
218 ulong base = (ulong) addr;
219 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr;
221 DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
223 /* Write auto select command: read Manufacturer ID */
224 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
225 addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
226 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00900090;
230 DEBUGF("FLASH MANUFACT: %x\n", value);
233 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_MANUFACT:
234 info->flash_id = FLASH_MAN_AMD;
236 case (CONFIG_SYS_FLASH_WORD_SIZE) FUJ_MANUFACT:
237 info->flash_id = FLASH_MAN_FUJ;
239 case (CONFIG_SYS_FLASH_WORD_SIZE) SST_MANUFACT:
240 info->flash_id = FLASH_MAN_SST;
242 case (CONFIG_SYS_FLASH_WORD_SIZE) STM_MANUFACT:
243 info->flash_id = FLASH_MAN_STM;
246 info->flash_id = FLASH_UNKNOWN;
247 info->sector_count = 0;
249 return (0); /* no or unknown flash */
252 value = addr2[1]; /* device ID */
253 DEBUGF("\nFLASH DEVICEID: %x\n", value);
256 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV040B:
257 info->flash_id += FLASH_AM040;
258 info->sector_count = 8;
259 info->size = 0x0080000; /* => 512 ko */
262 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_F040B:
263 info->flash_id += FLASH_AM040;
264 info->sector_count = 8;
265 info->size = 0x0080000; /* => 512 ko */
268 case (CONFIG_SYS_FLASH_WORD_SIZE) STM_ID_M29W040B:
269 info->flash_id += FLASH_AM040;
270 info->sector_count = 8;
271 info->size = 0x0080000; /* => 512 ko */
274 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_F016D:
275 info->flash_id += FLASH_AMD016;
276 info->sector_count = 32;
277 info->size = 0x00200000;
280 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV033C:
281 info->flash_id += FLASH_AMDLV033C;
282 info->sector_count = 64;
283 info->size = 0x00400000;
286 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV400T:
287 info->flash_id += FLASH_AM400T;
288 info->sector_count = 11;
289 info->size = 0x00080000;
290 break; /* => 0.5 MB */
292 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV400B:
293 info->flash_id += FLASH_AM400B;
294 info->sector_count = 11;
295 info->size = 0x00080000;
296 break; /* => 0.5 MB */
298 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV800T:
299 info->flash_id += FLASH_AM800T;
300 info->sector_count = 19;
301 info->size = 0x00100000;
304 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV800B:
305 info->flash_id += FLASH_AM800B;
306 info->sector_count = 19;
307 info->size = 0x00100000;
310 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV160T:
311 info->flash_id += FLASH_AM160T;
312 info->sector_count = 35;
313 info->size = 0x00200000;
316 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV160B:
317 info->flash_id += FLASH_AM160B;
318 info->sector_count = 35;
319 info->size = 0x00200000;
323 info->flash_id = FLASH_UNKNOWN;
324 return (0); /* => no or unknown flash */
327 /* set up sector start address table */
328 if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
329 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
330 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
331 for (i = 0; i < info->sector_count; i++)
332 info->start[i] = base + (i * 0x00010000);
334 if (info->flash_id & FLASH_BTYPE) {
335 /* set sector offsets for bottom boot block type */
336 info->start[0] = base + 0x00000000;
337 info->start[1] = base + 0x00004000;
338 info->start[2] = base + 0x00006000;
339 info->start[3] = base + 0x00008000;
340 for (i = 4; i < info->sector_count; i++) {
342 base + (i * 0x00010000) - 0x00030000;
345 /* set sector offsets for top boot block type */
346 i = info->sector_count - 1;
347 info->start[i--] = base + info->size - 0x00004000;
348 info->start[i--] = base + info->size - 0x00006000;
349 info->start[i--] = base + info->size - 0x00008000;
350 for (; i >= 0; i--) {
351 info->start[i] = base + i * 0x00010000;
356 /* check for protected sectors */
357 for (i = 0; i < info->sector_count; i++) {
358 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
359 /* D0 = 1 if protected */
360 addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[i]);
362 /* For AMD29033C flash we need to resend the command of *
363 * reading flash protection for upper 8 Mb of flash */
365 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
366 addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
367 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90909090;
370 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
371 info->protect[i] = 0;
373 info->protect[i] = addr2[2] & 1;
376 /* issue bank reset to return to read mode */
377 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0;
382 static int wait_for_DQ7_1(flash_info_t * info, int sect)
384 ulong start, now, last;
385 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr =
386 (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
388 start = get_timer(0);
390 while ((addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
391 (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) {
392 if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
396 /* show that we're waiting */
397 if ((now - last) > 1000) { /* every second */
405 #ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
406 int flash_erase(flash_info_t * info, int s_first, int s_last)
408 if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
409 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
410 ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT) ||
411 ((info->flash_id & FLASH_TYPEMASK) == FLASH_MXLV320T)) {
412 return flash_erase_2(info, s_first, s_last);
414 return flash_erase_1(info, s_first, s_last);
418 static int flash_erase_1(flash_info_t * info, int s_first, int s_last)
420 int flash_erase(flash_info_t * info, int s_first, int s_last)
423 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
424 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2;
425 int flag, prot, sect;
428 if ((s_first < 0) || (s_first > s_last)) {
429 if (info->flash_id == FLASH_UNKNOWN)
430 printf("- missing\n");
432 printf("- no sectors to erase\n");
436 if (info->flash_id == FLASH_UNKNOWN) {
437 printf("Can't erase unknown flash type - aborted\n");
442 for (sect = s_first; sect <= s_last; ++sect) {
443 if (info->protect[sect])
448 printf("- Warning: %d protected sectors will not be erased!", prot);
452 /* Disable interrupts which might cause a timeout here */
453 flag = disable_interrupts();
455 /* Start erase on unprotected sectors */
456 for (sect = s_first; sect <= s_last; sect++) {
457 if (info->protect[sect] == 0) { /* not protected */
458 addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
460 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
461 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
462 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
463 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080;
464 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
465 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
466 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00500050; /* block erase */
467 for (i = 0; i < 50; i++)
468 udelay(1000); /* wait 1 ms */
470 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
471 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
472 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080;
473 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
474 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
475 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00300030; /* sector erase */
478 * Wait for each sector to complete, it's more
479 * reliable. According to AMD Spec, you must
480 * issue all erase commands within a specified
481 * timeout. This has been seen to fail, especially
482 * if printf()s are included (for debug)!!
484 wait_for_DQ7_1(info, sect);
488 /* re-enable interrupts if necessary */
492 /* wait at least 80us - let's wait 1 ms */
495 /* reset to read mode */
496 addr = (CONFIG_SYS_FLASH_WORD_SIZE *) info->start[0];
497 addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
503 /*-----------------------------------------------------------------------
504 * Copy memory to flash, returns:
507 * 2 - Flash not erased
509 int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
514 wp = (addr & ~3); /* get lower word aligned address */
517 * handle unaligned start bytes
519 if ((l = addr - wp) != 0) {
521 for (i = 0, cp = wp; i < l; ++i, ++cp)
522 data = (data << 8) | (*(uchar *) cp);
524 for (; i < 4 && cnt > 0; ++i) {
525 data = (data << 8) | *src++;
530 for (; cnt == 0 && i < 4; ++i, ++cp)
531 data = (data << 8) | (*(uchar *) cp);
533 if ((rc = write_word(info, wp, data)) != 0)
540 * handle word aligned part
544 for (i = 0; i < 4; ++i)
545 data = (data << 8) | *src++;
547 if ((rc = write_word(info, wp, data)) != 0)
558 * handle unaligned tail bytes
561 for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
562 data = (data << 8) | *src++;
565 for (; i < 4; ++i, ++cp)
566 data = (data << 8) | (*(uchar *) cp);
568 return (write_word(info, wp, data));
571 /*-----------------------------------------------------------------------
572 * Copy memory to flash, returns:
575 * 2 - Flash not erased
577 #ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
578 static int write_word(flash_info_t * info, ulong dest, ulong data)
580 if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
581 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
582 ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT) ||
583 ((info->flash_id & FLASH_TYPEMASK) == FLASH_MXLV320T)) {
584 return write_word_2(info, dest, data);
586 return write_word_1(info, dest, data);
590 static int write_word_1(flash_info_t * info, ulong dest, ulong data)
592 static int write_word(flash_info_t * info, ulong dest, ulong data)
595 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
596 volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *) dest;
597 volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 = (CONFIG_SYS_FLASH_WORD_SIZE *) & data;
601 /* Check if Flash is (sufficiently) erased */
602 if ((*((vu_long *)dest) & data) != data)
605 for (i = 0; i < 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) {
606 /* Disable interrupts which might cause a timeout here */
607 flag = disable_interrupts();
609 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
610 addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
611 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00A000A0;
615 /* re-enable interrupts if necessary */
619 /* data polling for D7 */
620 start = get_timer(0);
621 while ((dest2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
622 (data2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080)) {
624 if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
632 #ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
634 #undef CONFIG_SYS_FLASH_WORD_SIZE
635 #define CONFIG_SYS_FLASH_WORD_SIZE unsigned short
638 * The following code cannot be run from FLASH!
640 static ulong flash_get_size_2(vu_long * addr, flash_info_t * info)
644 CONFIG_SYS_FLASH_WORD_SIZE value;
645 ulong base = (ulong) addr;
646 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr;
648 DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
650 /* issue bank reset to return to read mode */
651 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0;
652 /* Write auto select command: read Manufacturer ID */
653 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
654 addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
655 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00900090;
659 DEBUGF("FLASH MANUFACT: %x\n", value);
662 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_MANUFACT:
663 info->flash_id = FLASH_MAN_AMD;
665 case (CONFIG_SYS_FLASH_WORD_SIZE) FUJ_MANUFACT:
666 info->flash_id = FLASH_MAN_FUJ;
668 case (CONFIG_SYS_FLASH_WORD_SIZE) SST_MANUFACT:
669 info->flash_id = FLASH_MAN_SST;
671 case (CONFIG_SYS_FLASH_WORD_SIZE) STM_MANUFACT:
672 info->flash_id = FLASH_MAN_STM;
674 case (CONFIG_SYS_FLASH_WORD_SIZE) MX_MANUFACT:
675 info->flash_id = FLASH_MAN_MX;
678 info->flash_id = FLASH_UNKNOWN;
679 info->sector_count = 0;
681 return (0); /* no or unknown flash */
684 value = addr2[1]; /* device ID */
685 DEBUGF("\nFLASH DEVICEID: %x\n", value);
688 case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV320T:
689 info->flash_id += FLASH_AM320T;
690 info->sector_count = 71;
691 info->size = 0x00400000;
693 case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV320B:
694 info->flash_id += FLASH_AM320B;
695 info->sector_count = 71;
696 info->size = 0x00400000;
698 case (CONFIG_SYS_FLASH_WORD_SIZE)STM_ID_29W320DT:
699 info->flash_id += FLASH_STMW320DT;
700 info->sector_count = 67;
701 info->size = 0x00400000;
703 case (CONFIG_SYS_FLASH_WORD_SIZE)MX_ID_LV320T:
704 info->flash_id += FLASH_MXLV320T;
705 info->sector_count = 71;
706 info->size = 0x00400000;
709 info->flash_id = FLASH_UNKNOWN;
710 return (0); /* => no or unknown flash */
713 /* set up sector start address table */
714 if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
715 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
716 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
717 for (i = 0; i < info->sector_count; i++)
718 info->start[i] = base + (i * 0x00010000);
719 } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT) {
720 /* set sector offsets for top boot block type */
722 i = info->sector_count;
723 /* 1 x 16k boot sector */
726 info->start[i] = base;
727 /* 2 x 8k boot sectors */
728 for (n = 0; n < 2; ++n) {
731 info->start[i] = base;
733 /* 1 x 32k boot sector */
736 info->start[i] = base;
738 while (i > 0) { /* 64k regular sectors */
741 info->start[i] = base;
743 } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_MXLV320T) {
744 i = info->sector_count - 1;
745 info->start[i--] = base + info->size - 0x00002000;
746 info->start[i--] = base + info->size - 0x00004000;
747 info->start[i--] = base + info->size - 0x00006000;
748 info->start[i--] = base + info->size - 0x00008000;
749 info->start[i--] = base + info->size - 0x0000a000;
750 info->start[i--] = base + info->size - 0x0000c000;
751 info->start[i--] = base + info->size - 0x0000e000;
752 info->start[i--] = base + info->size - 0x00010000;
755 info->start[i] = base + i * 0x00010000;
757 if (info->flash_id & FLASH_BTYPE) {
758 /* set sector offsets for bottom boot block type */
759 info->start[0] = base + 0x00000000;
760 info->start[1] = base + 0x00004000;
761 info->start[2] = base + 0x00006000;
762 info->start[3] = base + 0x00008000;
764 for (i = 4; i < info->sector_count; i++)
765 info->start[i] = base + (i * 0x00010000) - 0x00030000;
767 /* set sector offsets for top boot block type */
768 i = info->sector_count - 1;
769 info->start[i--] = base + info->size - 0x00004000;
770 info->start[i--] = base + info->size - 0x00006000;
771 info->start[i--] = base + info->size - 0x00008000;
774 info->start[i] = base + i * 0x00010000;
778 /* check for protected sectors */
779 for (i = 0; i < info->sector_count; i++) {
780 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
781 /* D0 = 1 if protected */
782 addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[i]);
784 /* For AMD29033C flash we need to resend the command of *
785 * reading flash protection for upper 8 Mb of flash */
787 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
788 addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
789 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90909090;
792 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
793 info->protect[i] = 0;
795 info->protect[i] = addr2[2] & 1;
798 /* issue bank reset to return to read mode */
799 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0;
804 static int wait_for_DQ7_2(flash_info_t * info, int sect)
806 ulong start, now, last;
807 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr =
808 (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
810 start = get_timer(0);
812 while ((addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
813 (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) {
814 if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
818 /* show that we're waiting */
819 if ((now - last) > 1000) { /* every second */
827 static int flash_erase_2(flash_info_t * info, int s_first, int s_last)
829 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
830 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2;
831 int flag, prot, sect;
834 if ((s_first < 0) || (s_first > s_last)) {
835 if (info->flash_id == FLASH_UNKNOWN)
836 printf("- missing\n");
838 printf("- no sectors to erase\n");
842 if (info->flash_id == FLASH_UNKNOWN) {
843 printf("Can't erase unknown flash type - aborted\n");
848 for (sect = s_first; sect <= s_last; ++sect) {
849 if (info->protect[sect])
854 printf("- Warning: %d protected sectors will not be erased!", prot);
858 /* Disable interrupts which might cause a timeout here */
859 flag = disable_interrupts();
861 /* Start erase on unprotected sectors */
862 for (sect = s_first; sect <= s_last; sect++) {
863 if (info->protect[sect] == 0) { /* not protected */
864 addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
866 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
867 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
868 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
869 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080;
870 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
871 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
872 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00500050; /* block erase */
873 for (i = 0; i < 50; i++)
874 udelay(1000); /* wait 1 ms */
876 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
877 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
878 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080;
879 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
880 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
881 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00300030; /* sector erase */
884 * Wait for each sector to complete, it's more
885 * reliable. According to AMD Spec, you must
886 * issue all erase commands within a specified
887 * timeout. This has been seen to fail, especially
888 * if printf()s are included (for debug)!!
890 wait_for_DQ7_2(info, sect);
894 /* re-enable interrupts if necessary */
898 /* wait at least 80us - let's wait 1 ms */
901 /* reset to read mode */
902 addr = (CONFIG_SYS_FLASH_WORD_SIZE *) info->start[0];
903 addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
909 static int write_word_2(flash_info_t * info, ulong dest, ulong data)
911 ulong *data_ptr = &data;
912 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[0]);
913 volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *)dest;
914 volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 = (CONFIG_SYS_FLASH_WORD_SIZE *)data_ptr;
918 /* Check if Flash is (sufficiently) erased */
919 if ((*((vu_long *)dest) & data) != data)
922 for (i = 0; i < 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) {
925 /* Disable interrupts which might cause a timeout here */
926 flag = disable_interrupts();
928 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
929 addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
930 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00A000A0;
934 /* re-enable interrupts if necessary */
938 /* data polling for D7 */
939 start = get_timer(0);
940 while ((dest2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
941 (data2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080)) {
943 if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
950 #endif /* CONFIG_SYS_FLASH_2ND_16BIT_DEV */
952 /*-----------------------------------------------------------------------
955 static ulong flash_get_size(vu_long * addr, flash_info_t * info);
956 static int write_word(flash_info_t * info, ulong dest, ulong data);
958 /*-----------------------------------------------------------------------
961 unsigned long flash_init(void)
963 unsigned long total_b = 0;
964 unsigned long size_b[CONFIG_SYS_MAX_FLASH_BANKS];
965 unsigned short index = 0;
968 unsigned long ebc_boot_size;
969 unsigned long boot_selection;
971 mfsdr(sdr_pstrp0, val);
972 index = (val & SDR0_PSTRP0_BOOTSTRAP_MASK) >> 28;
974 if ((index == 0xc) || (index == 8)) {
976 * Boot Settings in IIC EEprom address 0xA8 or 0xA0
977 * Read Serial Device Strap Register1 in PPC440SPe
979 mfsdr(SDR0_SDSTP1, val);
980 boot_selection = val & SDR0_SDSTP1_BOOT_SEL_MASK;
981 ebc_boot_size = val & SDR0_SDSTP1_EBC_ROM_BS_MASK;
983 switch(boot_selection) {
984 case SDR0_SDSTP1_BOOT_SEL_EBC:
985 switch(ebc_boot_size) {
986 case SDR0_SDSTP1_EBC_ROM_BS_16BIT:
989 case SDR0_SDSTP1_EBC_ROM_BS_8BIT:
995 case SDR0_SDSTP1_BOOT_SEL_PCI:
1000 } /*else if (index == 0) {*/
1001 /* if (in8(FPGA_SETTING_REG) & FPGA_SET_REG_OP_CODE_FLASH_ABOVE)*/
1002 /* index = 8;*/ /* sram below op code flash -> new index 8*/
1006 DEBUGF("FLASH: Index: %d\n", index);
1008 /* Init: no FLASHes known */
1009 for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
1010 flash_info[i].flash_id = FLASH_UNKNOWN;
1011 flash_info[i].sector_count = -1;
1012 flash_info[i].size = 0;
1014 /* check whether the address is 0 */
1015 if (flash_addr_table[index][i] == 0)
1018 /* call flash_get_size() to initialize sector address */
1019 size_b[i] = flash_get_size((vu_long *) flash_addr_table[index][i],
1022 flash_info[i].size = size_b[i];
1024 if (flash_info[i].flash_id == FLASH_UNKNOWN) {
1025 printf("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
1026 i, size_b[i], size_b[i] << 20);
1027 flash_info[i].sector_count = -1;
1028 flash_info[i].size = 0;
1031 /* Monitor protection ON by default */
1032 (void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE,
1033 CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN - 1,
1035 #if defined(CONFIG_ENV_IS_IN_FLASH)
1036 (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR,
1037 CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
1039 #if defined(CONFIG_ENV_ADDR_REDUND)
1040 (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
1041 CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
1045 total_b += flash_info[i].size;