3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
10 * Wait for completion of each sector erase command issued
12 * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
16 #include <asm/ppc4xx.h>
17 #include <asm/processor.h>
19 flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
23 #define DEBUGF(x...) printf(x)
28 #define CONFIG_SYS_FLASH_CHAR_SIZE unsigned char
29 #define CONFIG_SYS_FLASH_CHAR_ADDR0 (0x0aaa)
30 #define CONFIG_SYS_FLASH_CHAR_ADDR1 (0x0555)
31 /*-----------------------------------------------------------------------
34 static ulong flash_get_size(vu_long * addr, flash_info_t * info);
35 static void flash_get_offsets(ulong base, flash_info_t * info);
36 static int write_word(flash_info_t * info, ulong dest, ulong data);
37 #ifdef FLASH_BASE1_PRELIM
38 static int write_word_1(flash_info_t * info, ulong dest, ulong data);
39 static int write_word_2(flash_info_t * info, ulong dest, ulong data);
40 static int flash_erase_1(flash_info_t * info, int s_first, int s_last);
41 static int flash_erase_2(flash_info_t * info, int s_first, int s_last);
42 static ulong flash_get_size_1(vu_long * addr, flash_info_t * info);
43 static ulong flash_get_size_2(vu_long * addr, flash_info_t * info);
46 unsigned long flash_init(void)
48 unsigned long size_b0, size_b1=0;
51 /* Init: no FLASHes known */
52 for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
53 flash_info[i].flash_id = FLASH_UNKNOWN;
56 /* Static FLASH Bank configuration here - FIXME XXX */
59 flash_get_size((vu_long *) FLASH_BASE0_PRELIM, &flash_info[0]);
61 if (flash_info[0].flash_id == FLASH_UNKNOWN) {
62 printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
63 size_b0, size_b0 << 20);
68 flash_get_offsets(FLASH_BASE0_PRELIM, &flash_info[0]);
69 /* Monitor protection ON by default */
70 (void)flash_protect(FLAG_PROTECT_SET,
71 CONFIG_SYS_MONITOR_BASE,
72 CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN - 1,
74 #ifdef CONFIG_ENV_IS_IN_FLASH
75 (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR,
76 CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
78 (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
79 CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
82 /* Also protect sector containing initial power-up instruction */
83 /* (flash_protect() checks address range - other call ignored) */
84 (void)flash_protect(FLAG_PROTECT_SET,
85 0xFFFFFFFC, 0xFFFFFFFF, &flash_info[0]);
87 flash_info[0].size = size_b0;
89 #ifdef FLASH_BASE1_PRELIM
91 flash_get_size((vu_long *) FLASH_BASE1_PRELIM, &flash_info[1])*2;
93 if (flash_info[1].flash_id == FLASH_UNKNOWN) {
94 printf("## Unknown FLASH on Bank 1 - Size = 0x%08lx = %ld MB\n",
95 size_b1, size_b1 << 20);
100 flash_get_offsets(FLASH_BASE1_PRELIM, &flash_info[1]);
101 flash_info[1].size = size_b1;
104 return (size_b0 + size_b1);
107 static void flash_get_offsets(ulong base, flash_info_t * info)
111 /* set up sector start address table */
112 if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
113 (info->flash_id == FLASH_AM040)) {
114 for (i = 0; i < info->sector_count; i++)
115 info->start[i] = base + (i * 0x00010000);
116 } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
117 for (i = 0; i < info->sector_count; i++) {
118 info->start[i] = base + (i * 0x00010000*2);
120 } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N ) {
121 for (i = 0; i < info->sector_count; i++) {
122 info->start[i] = base + (i * 0x00020000*2);
125 if (info->flash_id & FLASH_BTYPE) {
126 /* set sector offsets for bottom boot block type */
127 info->start[0] = base + 0x00000000;
128 info->start[1] = base + 0x00004000;
129 info->start[2] = base + 0x00006000;
130 info->start[3] = base + 0x00008000;
131 for (i = 4; i < info->sector_count; i++) {
133 base + (i * 0x00010000) - 0x00030000;
136 /* set sector offsets for top boot block type */
137 i = info->sector_count - 1;
138 info->start[i--] = base + info->size - 0x00004000;
139 info->start[i--] = base + info->size - 0x00006000;
140 info->start[i--] = base + info->size - 0x00008000;
141 for (; i >= 0; i--) {
142 info->start[i] = base + i * 0x00010000;
149 void flash_print_info(flash_info_t * info)
155 volatile unsigned long *flash;
157 if (info->flash_id == FLASH_UNKNOWN) {
158 printf("missing or unknown FLASH type\n");
162 switch (info->flash_id & FLASH_VENDMASK) {
176 printf("Unknown Vendor ");
180 switch (info->flash_id & FLASH_TYPEMASK) {
182 printf("AM29F040 (512 Kbit, uniform sector size)\n");
185 printf("AM29LV400B (4 Mbit, bottom boot sect)\n");
188 printf("AM29LV400T (4 Mbit, top boot sector)\n");
191 printf("AM29LV800B (8 Mbit, bottom boot sect)\n");
194 printf("AM29LV800T (8 Mbit, top boot sector)\n");
197 printf("AM29F016D (16 Mbit, uniform sector size)\n");
200 printf("AM29LV160B (16 Mbit, bottom boot sect)\n");
203 printf("AM29LV160T (16 Mbit, top boot sector)\n");
206 printf("AM29LV320B (32 Mbit, bottom boot sect)\n");
209 printf("AM29LV320T (32 Mbit, top boot sector)\n");
212 printf("AM29LV033C (32 Mbit, top boot sector)\n");
215 printf("AM29LV128U (128 Mbit * 2, top boot sector)\n");
218 printf("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
221 printf("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
223 case FLASH_STMW320DT:
224 printf ("M29W320DT (32 M, top sector)\n");
226 case FLASH_S29GL128N:
227 printf ("S29GL128N (256 Mbit, uniform sector size)\n");
230 printf("Unknown Chip Type\n");
234 printf(" Size: %ld KB in %d Sectors\n",
235 info->size >> 10, info->sector_count);
237 printf(" Sector Start Addresses:");
238 for (i = 0; i < info->sector_count; ++i) {
240 * Check if whole sector is erased
242 if (i != (info->sector_count - 1))
243 size = info->start[i + 1] - info->start[i];
245 size = info->start[0] + info->size - info->start[i];
247 flash = (volatile unsigned long *)info->start[i];
248 size = size >> 2; /* divide by 4 for longword access */
249 for (k = 0; k < size; k++) {
250 if (*flash++ != 0xffffffff) {
260 erased ? " E" : " ", info->protect[i] ? "RO " : " ");
268 * The following code cannot be run from FLASH!
270 #ifdef FLASH_BASE1_PRELIM
271 static ulong flash_get_size(vu_long * addr, flash_info_t * info)
273 if ((ulong)addr == FLASH_BASE1_PRELIM) {
274 return flash_get_size_2(addr, info);
276 return flash_get_size_1(addr, info);
280 static ulong flash_get_size_1(vu_long * addr, flash_info_t * info)
282 static ulong flash_get_size(vu_long * addr, flash_info_t * info)
286 CONFIG_SYS_FLASH_WORD_SIZE value;
287 ulong base = (ulong) addr;
288 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr;
290 DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
292 /* Write auto select command: read Manufacturer ID */
293 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
294 addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
295 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00900090;
299 DEBUGF("FLASH MANUFACT: %x\n", value);
302 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_MANUFACT:
303 info->flash_id = FLASH_MAN_AMD;
305 case (CONFIG_SYS_FLASH_WORD_SIZE) FUJ_MANUFACT:
306 info->flash_id = FLASH_MAN_FUJ;
308 case (CONFIG_SYS_FLASH_WORD_SIZE) SST_MANUFACT:
309 info->flash_id = FLASH_MAN_SST;
311 case (CONFIG_SYS_FLASH_WORD_SIZE) STM_MANUFACT:
312 info->flash_id = FLASH_MAN_STM;
315 info->flash_id = FLASH_UNKNOWN;
316 info->sector_count = 0;
318 return 0; /* no or unknown flash */
321 value = addr2[1]; /* device ID */
322 DEBUGF("\nFLASH DEVICEID: %x\n", value);
325 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV040B:
326 info->flash_id += FLASH_AM040;
327 info->sector_count = 8;
328 info->size = 0x0080000; /* => 512 ko */
331 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_F040B:
332 info->flash_id += FLASH_AM040;
333 info->sector_count = 8;
334 info->size = 0x0080000; /* => 512 ko */
337 case (CONFIG_SYS_FLASH_WORD_SIZE) STM_ID_M29W040B:
338 info->flash_id += FLASH_AM040;
339 info->sector_count = 8;
340 info->size = 0x0080000; /* => 512 ko */
343 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_F016D:
344 info->flash_id += FLASH_AMD016;
345 info->sector_count = 32;
346 info->size = 0x00200000;
349 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV033C:
350 info->flash_id += FLASH_AMDLV033C;
351 info->sector_count = 64;
352 info->size = 0x00400000;
355 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV400T:
356 info->flash_id += FLASH_AM400T;
357 info->sector_count = 11;
358 info->size = 0x00080000;
359 break; /* => 0.5 MB */
361 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV400B:
362 info->flash_id += FLASH_AM400B;
363 info->sector_count = 11;
364 info->size = 0x00080000;
365 break; /* => 0.5 MB */
367 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV800T:
368 info->flash_id += FLASH_AM800T;
369 info->sector_count = 19;
370 info->size = 0x00100000;
373 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV800B:
374 info->flash_id += FLASH_AM800B;
375 info->sector_count = 19;
376 info->size = 0x00100000;
379 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV160T:
380 info->flash_id += FLASH_AM160T;
381 info->sector_count = 35;
382 info->size = 0x00200000;
385 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV160B:
386 info->flash_id += FLASH_AM160B;
387 info->sector_count = 35;
388 info->size = 0x00200000;
391 info->flash_id = FLASH_UNKNOWN;
392 return 0; /* => no or unknown flash */
395 /* set up sector start address table */
396 if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
397 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
398 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
399 for (i = 0; i < info->sector_count; i++)
400 info->start[i] = base + (i * 0x00010000);
402 else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
403 for (i = 0; i < info->sector_count; i++)
404 info->start[i] = base + (i * 0x00010000 * 2);
406 if (info->flash_id & FLASH_BTYPE) {
407 /* set sector offsets for bottom boot block type */
408 info->start[0] = base + 0x00000000;
409 info->start[1] = base + 0x00004000;
410 info->start[2] = base + 0x00006000;
411 info->start[3] = base + 0x00008000;
412 for (i = 4; i < info->sector_count; i++) {
414 base + (i * 0x00010000) - 0x00030000;
417 /* set sector offsets for top boot block type */
418 i = info->sector_count - 1;
419 info->start[i--] = base + info->size - 0x00004000;
420 info->start[i--] = base + info->size - 0x00006000;
421 info->start[i--] = base + info->size - 0x00008000;
422 for (; i >= 0; i--) {
423 info->start[i] = base + i * 0x00010000;
428 /* check for protected sectors */
429 for (i = 0; i < info->sector_count; i++) {
430 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
431 /* D0 = 1 if protected */
432 addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[i]);
434 /* For AMD29033C flash we need to resend the command of *
435 * reading flash protection for upper 8 Mb of flash */
437 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
438 addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
439 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90909090;
442 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
443 info->protect[i] = 0;
445 info->protect[i] = addr2[2] & 1;
448 /* issue bank reset to return to read mode */
449 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0;
454 static int wait_for_DQ7_1(flash_info_t * info, int sect)
456 ulong start, now, last;
457 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr =
458 (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
460 start = get_timer(0);
462 while ((addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
463 (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) {
464 if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
468 /* show that we're waiting */
469 if ((now - last) > 1000) { /* every second */
477 #ifdef FLASH_BASE1_PRELIM
478 int flash_erase(flash_info_t * info, int s_first, int s_last)
480 if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
481 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
482 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) ||
483 ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N) ||
484 ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) {
485 return flash_erase_2(info, s_first, s_last);
487 return flash_erase_1(info, s_first, s_last);
491 static int flash_erase_1(flash_info_t * info, int s_first, int s_last)
493 int flash_erase(flash_info_t * info, int s_first, int s_last)
496 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
497 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2;
498 int flag, prot, sect;
501 if ((s_first < 0) || (s_first > s_last)) {
502 if (info->flash_id == FLASH_UNKNOWN) {
503 printf("- missing\n");
505 printf("- no sectors to erase\n");
510 if (info->flash_id == FLASH_UNKNOWN) {
511 printf("Can't erase unknown flash type - aborted\n");
516 for (sect = s_first; sect <= s_last; ++sect) {
517 if (info->protect[sect]) {
523 printf("- Warning: %d protected sectors will not be erased!\n",
529 /* Disable interrupts which might cause a timeout here */
530 flag = disable_interrupts();
532 /* Start erase on unprotected sectors */
533 for (sect = s_first; sect <= s_last; sect++) {
534 if (info->protect[sect] == 0) { /* not protected */
535 addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
537 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
538 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
539 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
540 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080;
541 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
542 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
543 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00500050; /* block erase */
544 for (i = 0; i < 50; i++)
545 udelay(1000); /* wait 1 ms */
547 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
548 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
549 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080;
550 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
551 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
552 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00300030; /* sector erase */
555 * Wait for each sector to complete, it's more
556 * reliable. According to AMD Spec, you must
557 * issue all erase commands within a specified
558 * timeout. This has been seen to fail, especially
559 * if printf()s are included (for debug)!!
561 wait_for_DQ7_1(info, sect);
565 /* re-enable interrupts if necessary */
569 /* wait at least 80us - let's wait 1 ms */
572 /* reset to read mode */
573 addr = (CONFIG_SYS_FLASH_WORD_SIZE *) info->start[0];
574 addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
580 /*-----------------------------------------------------------------------
581 * Copy memory to flash, returns:
584 * 2 - Flash not erased
586 int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
591 wp = (addr & ~3); /* get lower word aligned address */
594 * handle unaligned start bytes
596 if ((l = addr - wp) != 0) {
598 for (i = 0, cp = wp; i < l; ++i, ++cp) {
599 data = (data << 8) | (*(uchar *) cp);
601 for (; i < 4 && cnt > 0; ++i) {
602 data = (data << 8) | *src++;
606 for (; cnt == 0 && i < 4; ++i, ++cp) {
607 data = (data << 8) | (*(uchar *) cp);
610 if ((rc = write_word(info, wp, data)) != 0) {
617 * handle word aligned part
621 for (i = 0; i < 4; ++i) {
622 data = (data << 8) | *src++;
624 if ((rc = write_word(info, wp, data)) != 0) {
636 * handle unaligned tail bytes
639 for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
640 data = (data << 8) | *src++;
643 for (; i < 4; ++i, ++cp) {
644 data = (data << 8) | (*(uchar *) cp);
647 return (write_word(info, wp, data));
650 /*-----------------------------------------------------------------------
651 * Copy memory to flash, returns:
654 * 2 - Flash not erased
656 #ifdef FLASH_BASE1_PRELIM
657 static int write_word(flash_info_t * info, ulong dest, ulong data)
659 if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
660 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
661 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) ||
662 ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N) ||
663 ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) {
664 return write_word_2(info, dest, data);
666 return write_word_1(info, dest, data);
670 static int write_word_1(flash_info_t * info, ulong dest, ulong data)
672 static int write_word(flash_info_t * info, ulong dest, ulong data)
675 ulong *data_ptr = &data;
676 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[0]);
677 volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *)dest;
678 volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 = (CONFIG_SYS_FLASH_WORD_SIZE *)data_ptr;
682 /* Check if Flash is (sufficiently) erased */
683 if ((*((vu_long *)dest) & data) != data) {
687 for (i = 0; i < 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) {
690 /* Disable interrupts which might cause a timeout here */
691 flag = disable_interrupts();
693 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
694 addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
695 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00A000A0;
699 /* re-enable interrupts if necessary */
703 /* data polling for D7 */
704 start = get_timer(0);
705 while ((dest2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
706 (data2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080)) {
708 if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
717 #ifdef FLASH_BASE1_PRELIM
720 * The following code cannot be run from FLASH!
722 static ulong flash_get_size_2(vu_long * addr, flash_info_t * info)
725 CONFIG_SYS_FLASH_CHAR_SIZE value;
726 ulong base = (ulong) addr;
727 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr;
729 DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
731 /* Write auto select command: read Manufacturer ID */
732 addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
733 addr2[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
734 addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90909090;
737 value = (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0];
738 DEBUGF("FLASH MANUFACT: %x\n", value);
741 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_MANUFACT:
742 info->flash_id = FLASH_MAN_AMD;
744 case (CONFIG_SYS_FLASH_CHAR_SIZE) FUJ_MANUFACT:
745 info->flash_id = FLASH_MAN_FUJ;
747 case (CONFIG_SYS_FLASH_CHAR_SIZE) SST_MANUFACT:
748 info->flash_id = FLASH_MAN_SST;
750 case (CONFIG_SYS_FLASH_CHAR_SIZE) STM_MANUFACT:
751 info->flash_id = FLASH_MAN_STM;
754 info->flash_id = FLASH_UNKNOWN;
755 info->sector_count = 0;
757 return 0; /* no or unknown flash */
760 value = (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[2]; /* device ID */
761 DEBUGF("\nFLASH DEVICEID: %x\n", value);
764 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV040B:
765 info->flash_id += FLASH_AM040;
766 info->sector_count = 8;
767 info->size = 0x0080000; /* => 512 ko */
770 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_F040B:
771 info->flash_id += FLASH_AM040;
772 info->sector_count = 8;
773 info->size = 0x0080000; /* => 512 ko */
776 case (CONFIG_SYS_FLASH_CHAR_SIZE) STM_ID_M29W040B:
777 info->flash_id += FLASH_AM040;
778 info->sector_count = 8;
779 info->size = 0x0080000; /* => 512 ko */
782 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_F016D:
783 info->flash_id += FLASH_AMD016;
784 info->sector_count = 32;
785 info->size = 0x00200000;
788 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV033C:
789 info->flash_id += FLASH_AMDLV033C;
790 info->sector_count = 64;
791 info->size = 0x00400000;
794 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV400T:
795 info->flash_id += FLASH_AM400T;
796 info->sector_count = 11;
797 info->size = 0x00080000;
798 break; /* => 0.5 MB */
800 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV400B:
801 info->flash_id += FLASH_AM400B;
802 info->sector_count = 11;
803 info->size = 0x00080000;
804 break; /* => 0.5 MB */
806 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV800T:
807 info->flash_id += FLASH_AM800T;
808 info->sector_count = 19;
809 info->size = 0x00100000;
812 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV800B:
813 info->flash_id += FLASH_AM800B;
814 info->sector_count = 19;
815 info->size = 0x00100000;
818 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV160T:
819 info->flash_id += FLASH_AM160T;
820 info->sector_count = 35;
821 info->size = 0x00200000;
824 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV160B:
825 info->flash_id += FLASH_AM160B;
826 info->sector_count = 35;
827 info->size = 0x00200000;
829 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_MIRROR:
830 if ((CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1c] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_LV128U_2
831 && (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1e] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_LV128U_3) {
832 info->flash_id += FLASH_AMLV128U;
833 info->sector_count = 256;
834 info->size = 0x01000000;
835 } else if ((CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1c] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_GL128N_2
836 && (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1e] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_GL128N_3 ) {
837 info->flash_id += FLASH_S29GL128N;
838 info->sector_count = 128;
839 info->size = 0x01000000;
842 info->flash_id = FLASH_UNKNOWN;
846 info->flash_id = FLASH_UNKNOWN;
847 return 0; /* => no or unknown flash */
850 /* set up sector start address table */
851 if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
852 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
853 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
854 for (i = 0; i < info->sector_count; i++)
855 info->start[i] = base + (i * 0x00010000);
856 } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
857 for (i = 0; i < info->sector_count; i++)
858 info->start[i] = base + (i * 0x00010000);
859 } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N ) {
860 for (i = 0; i < info->sector_count; i++)
861 info->start[i] = base + (i * 0x00020000);
863 if (info->flash_id & FLASH_BTYPE) {
864 /* set sector offsets for bottom boot block type */
865 info->start[0] = base + 0x00000000;
866 info->start[1] = base + 0x00004000;
867 info->start[2] = base + 0x00006000;
868 info->start[3] = base + 0x00008000;
869 for (i = 4; i < info->sector_count; i++) {
871 base + (i * 0x00010000) - 0x00030000;
874 /* set sector offsets for top boot block type */
875 i = info->sector_count - 1;
876 info->start[i--] = base + info->size - 0x00004000;
877 info->start[i--] = base + info->size - 0x00006000;
878 info->start[i--] = base + info->size - 0x00008000;
879 for (; i >= 0; i--) {
880 info->start[i] = base + i * 0x00010000;
885 /* check for protected sectors */
886 for (i = 0; i < info->sector_count; i++) {
887 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
888 /* D0 = 1 if protected */
889 addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[i]);
891 /* For AMD29033C flash we need to resend the command of *
892 * reading flash protection for upper 8 Mb of flash */
894 addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
895 addr2[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
896 addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90909090;
899 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
900 info->protect[i] = 0;
902 info->protect[i] = (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[4] & 1;
905 /* issue bank reset to return to read mode */
906 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xF0F0F0F0;
910 static int wait_for_DQ7_2(flash_info_t * info, int sect)
912 ulong start, now, last;
913 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr =
914 (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
916 start = get_timer(0);
918 while (((CONFIG_SYS_FLASH_WORD_SIZE)addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080) !=
919 (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080) {
920 if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
924 /* show that we're waiting */
925 if ((now - last) > 1000) { /* every second */
933 static int flash_erase_2(flash_info_t * info, int s_first, int s_last)
935 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
936 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2;
937 int flag, prot, sect;
940 if ((s_first < 0) || (s_first > s_last)) {
941 if (info->flash_id == FLASH_UNKNOWN) {
942 printf("- missing\n");
944 printf("- no sectors to erase\n");
949 if (info->flash_id == FLASH_UNKNOWN) {
950 printf("Can't erase unknown flash type - aborted\n");
955 for (sect = s_first; sect <= s_last; ++sect) {
956 if (info->protect[sect]) {
962 printf("- Warning: %d protected sectors will not be erased!\n",
968 /* Disable interrupts which might cause a timeout here */
969 flag = disable_interrupts();
971 /* Start erase on unprotected sectors */
972 for (sect = s_first; sect <= s_last; sect++) {
973 if (info->protect[sect] == 0) { /* not protected */
974 addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
976 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
977 addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
978 addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
979 addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080;
980 addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
981 addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
982 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x50505050; /* block erase */
983 for (i = 0; i < 50; i++)
984 udelay(1000); /* wait 1 ms */
986 addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
987 addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
988 addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080;
989 addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
990 addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
991 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x30303030; /* sector erase */
994 * Wait for each sector to complete, it's more
995 * reliable. According to AMD Spec, you must
996 * issue all erase commands within a specified
997 * timeout. This has been seen to fail, especially
998 * if printf()s are included (for debug)!!
1000 wait_for_DQ7_2(info, sect);
1004 /* re-enable interrupts if necessary */
1006 enable_interrupts();
1008 /* wait at least 80us - let's wait 1 ms */
1011 /* reset to read mode */
1012 addr = (CONFIG_SYS_FLASH_WORD_SIZE *) info->start[0];
1013 addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xF0F0F0F0; /* reset bank */
1019 static int write_word_2(flash_info_t * info, ulong dest, ulong data)
1021 ulong *data_ptr = &data;
1022 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[0]);
1023 volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *)dest;
1024 volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 = (CONFIG_SYS_FLASH_WORD_SIZE *)data_ptr;
1028 /* Check if Flash is (sufficiently) erased */
1029 if ((*((vu_long *)dest) & data) != data) {
1033 for (i = 0; i < 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) {
1036 /* Disable interrupts which might cause a timeout here */
1037 flag = disable_interrupts();
1039 addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
1040 addr2[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
1041 addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xA0A0A0A0;
1043 dest2[i] = data2[i];
1045 /* re-enable interrupts if necessary */
1047 enable_interrupts();
1049 /* data polling for D7 */
1050 start = get_timer(0);
1051 while ((dest2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080) !=
1052 (data2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080)) {
1054 if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
1063 #endif /* FLASH_BASE1_PRELIM */