2 * (C) Copyright 2004-2005
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 * SPDX-License-Identifier: GPL-2.0+
13 * Wait for completion of each sector erase command issued
15 * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
19 #include <asm/ppc4xx.h>
20 #include <asm/processor.h>
22 flash_info_t flash_info
[CONFIG_SYS_MAX_FLASH_BANKS
]; /* info for FLASH chips */
24 /*-----------------------------------------------------------------------
27 static int write_word(flash_info_t
* info
, ulong dest
, ulong data
);
28 #ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
29 static int write_word_1(flash_info_t
* info
, ulong dest
, ulong data
);
30 static int write_word_2(flash_info_t
* info
, ulong dest
, ulong data
);
31 static int flash_erase_1(flash_info_t
* info
, int s_first
, int s_last
);
32 static int flash_erase_2(flash_info_t
* info
, int s_first
, int s_last
);
33 static ulong
flash_get_size_1(vu_long
* addr
, flash_info_t
* info
);
34 static ulong
flash_get_size_2(vu_long
* addr
, flash_info_t
* info
);
37 void flash_print_info(flash_info_t
* info
)
43 volatile unsigned long *flash
;
45 if (info
->flash_id
== FLASH_UNKNOWN
) {
46 printf("missing or unknown FLASH type\n");
50 switch (info
->flash_id
& FLASH_VENDMASK
) {
67 printf("Unknown Vendor ");
71 switch (info
->flash_id
& FLASH_TYPEMASK
) {
73 printf("AM29F040 (512 Kbit, uniform sector size)\n");
76 printf("AM29LV400B (4 Mbit, bottom boot sect)\n");
79 printf("AM29LV400T (4 Mbit, top boot sector)\n");
82 printf("AM29LV800B (8 Mbit, bottom boot sect)\n");
85 printf("AM29LV800T (8 Mbit, top boot sector)\n");
88 printf("AM29F016D (16 Mbit, uniform sector size)\n");
91 printf("AM29LV160B (16 Mbit, bottom boot sect)\n");
94 printf("AM29LV160T (16 Mbit, top boot sector)\n");
97 printf("AM29LV320B (32 Mbit, bottom boot sect)\n");
100 printf("AM29LV320T (32 Mbit, top boot sector)\n");
103 printf("AM29LV033C (32 Mbit, top boot sector)\n");
106 printf("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
109 printf("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
111 case FLASH_STMW320DT
:
112 printf ("M29W320DT (32 M, top sector)\n");
115 printf ("MXLV320T (32 Mbit, top sector)\n");
118 printf("Unknown Chip Type\n");
122 printf(" Size: %ld KB in %d Sectors\n",
123 info
->size
>> 10, info
->sector_count
);
125 printf(" Sector Start Addresses:");
126 for (i
= 0; i
< info
->sector_count
; ++i
) {
128 * Check if whole sector is erased
130 if (i
!= (info
->sector_count
- 1))
131 size
= info
->start
[i
+ 1] - info
->start
[i
];
133 size
= info
->start
[0] + info
->size
- info
->start
[i
];
135 flash
= (volatile unsigned long *)info
->start
[i
];
136 size
= size
>> 2; /* divide by 4 for longword access */
137 for (k
= 0; k
< size
; k
++) {
138 if (*flash
++ != 0xffffffff) {
148 erased
? " E" : " ", info
->protect
[i
] ? "RO " : " ");
156 * The following code cannot be run from FLASH!
158 #ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
159 static ulong
flash_get_size(vu_long
* addr
, flash_info_t
* info
)
161 /* bit 0 used for big flash marking */
162 if ((ulong
)addr
& 0x1) {
163 return flash_get_size_2((vu_long
*)((ulong
)addr
& 0xfffffffe), info
);
165 return flash_get_size_1(addr
, info
);
169 static ulong
flash_get_size_1(vu_long
* addr
, flash_info_t
* info
)
171 static ulong
flash_get_size(vu_long
* addr
, flash_info_t
* info
)
175 CONFIG_SYS_FLASH_WORD_SIZE value
;
176 ulong base
= (ulong
) addr
;
177 volatile CONFIG_SYS_FLASH_WORD_SIZE
*addr2
= (CONFIG_SYS_FLASH_WORD_SIZE
*) addr
;
179 DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr
);
181 /* Write auto select command: read Manufacturer ID */
182 addr2
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00AA00AA;
183 addr2
[CONFIG_SYS_FLASH_ADDR1
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00550055;
184 addr2
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00900090;
188 DEBUGF("FLASH MANUFACT: %x\n", value
);
191 case (CONFIG_SYS_FLASH_WORD_SIZE
) AMD_MANUFACT
:
192 info
->flash_id
= FLASH_MAN_AMD
;
194 case (CONFIG_SYS_FLASH_WORD_SIZE
) FUJ_MANUFACT
:
195 info
->flash_id
= FLASH_MAN_FUJ
;
197 case (CONFIG_SYS_FLASH_WORD_SIZE
) SST_MANUFACT
:
198 info
->flash_id
= FLASH_MAN_SST
;
200 case (CONFIG_SYS_FLASH_WORD_SIZE
) STM_MANUFACT
:
201 info
->flash_id
= FLASH_MAN_STM
;
204 info
->flash_id
= FLASH_UNKNOWN
;
205 info
->sector_count
= 0;
207 return (0); /* no or unknown flash */
210 value
= addr2
[1]; /* device ID */
211 DEBUGF("\nFLASH DEVICEID: %x\n", value
);
214 case (CONFIG_SYS_FLASH_WORD_SIZE
) AMD_ID_LV040B
:
215 info
->flash_id
+= FLASH_AM040
;
216 info
->sector_count
= 8;
217 info
->size
= 0x0080000; /* => 512 KiB */
220 case (CONFIG_SYS_FLASH_WORD_SIZE
) AMD_ID_F040B
:
221 info
->flash_id
+= FLASH_AM040
;
222 info
->sector_count
= 8;
223 info
->size
= 0x0080000; /* => 512 KiB */
226 case (CONFIG_SYS_FLASH_WORD_SIZE
) STM_ID_M29W040B
:
227 info
->flash_id
+= FLASH_AM040
;
228 info
->sector_count
= 8;
229 info
->size
= 0x0080000; /* => 512 KiB */
232 case (CONFIG_SYS_FLASH_WORD_SIZE
) AMD_ID_F016D
:
233 info
->flash_id
+= FLASH_AMD016
;
234 info
->sector_count
= 32;
235 info
->size
= 0x00200000; /* => 2 MiB */
238 case (CONFIG_SYS_FLASH_WORD_SIZE
) AMD_ID_LV033C
:
239 info
->flash_id
+= FLASH_AMDLV033C
;
240 info
->sector_count
= 64;
241 info
->size
= 0x00400000; /* => 4 MiB */
244 case (CONFIG_SYS_FLASH_WORD_SIZE
) AMD_ID_LV400T
:
245 info
->flash_id
+= FLASH_AM400T
;
246 info
->sector_count
= 11;
247 info
->size
= 0x00080000; /* => 512 KiB */
250 case (CONFIG_SYS_FLASH_WORD_SIZE
) AMD_ID_LV400B
:
251 info
->flash_id
+= FLASH_AM400B
;
252 info
->sector_count
= 11;
253 info
->size
= 0x00080000; /* => 512 KiB */
256 case (CONFIG_SYS_FLASH_WORD_SIZE
) AMD_ID_LV800T
:
257 info
->flash_id
+= FLASH_AM800T
;
258 info
->sector_count
= 19;
259 info
->size
= 0x00100000; /* => 1 MiB */
262 case (CONFIG_SYS_FLASH_WORD_SIZE
) AMD_ID_LV800B
:
263 info
->flash_id
+= FLASH_AM800B
;
264 info
->sector_count
= 19;
265 info
->size
= 0x00100000; /* => 1 MiB */
268 case (CONFIG_SYS_FLASH_WORD_SIZE
) AMD_ID_LV160T
:
269 info
->flash_id
+= FLASH_AM160T
;
270 info
->sector_count
= 35;
271 info
->size
= 0x00200000; /* => 2 MiB */
274 case (CONFIG_SYS_FLASH_WORD_SIZE
) AMD_ID_LV160B
:
275 info
->flash_id
+= FLASH_AM160B
;
276 info
->sector_count
= 35;
277 info
->size
= 0x00200000; /* => 2 MiB */
281 info
->flash_id
= FLASH_UNKNOWN
;
282 return (0); /* => no or unknown flash */
285 /* set up sector start address table */
286 if (((info
->flash_id
& FLASH_VENDMASK
) == FLASH_MAN_SST
) ||
287 ((info
->flash_id
& FLASH_TYPEMASK
) == FLASH_AM040
) ||
288 ((info
->flash_id
& FLASH_TYPEMASK
) == FLASH_AMD016
)) {
289 for (i
= 0; i
< info
->sector_count
; i
++)
290 info
->start
[i
] = base
+ (i
* 0x00010000);
292 if (info
->flash_id
& FLASH_BTYPE
) {
293 /* set sector offsets for bottom boot block type */
294 info
->start
[0] = base
+ 0x00000000;
295 info
->start
[1] = base
+ 0x00004000;
296 info
->start
[2] = base
+ 0x00006000;
297 info
->start
[3] = base
+ 0x00008000;
298 for (i
= 4; i
< info
->sector_count
; i
++) {
300 base
+ (i
* 0x00010000) - 0x00030000;
303 /* set sector offsets for top boot block type */
304 i
= info
->sector_count
- 1;
305 info
->start
[i
--] = base
+ info
->size
- 0x00004000;
306 info
->start
[i
--] = base
+ info
->size
- 0x00006000;
307 info
->start
[i
--] = base
+ info
->size
- 0x00008000;
308 for (; i
>= 0; i
--) {
309 info
->start
[i
] = base
+ i
* 0x00010000;
314 /* check for protected sectors */
315 for (i
= 0; i
< info
->sector_count
; i
++) {
316 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
317 /* D0 = 1 if protected */
318 addr2
= (volatile CONFIG_SYS_FLASH_WORD_SIZE
*)(info
->start
[i
]);
320 /* For AMD29033C flash we need to resend the command of *
321 * reading flash protection for upper 8 Mb of flash */
323 addr2
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0xAAAAAAAA;
324 addr2
[CONFIG_SYS_FLASH_ADDR1
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x55555555;
325 addr2
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x90909090;
328 if ((info
->flash_id
& FLASH_VENDMASK
) == FLASH_MAN_SST
)
329 info
->protect
[i
] = 0;
331 info
->protect
[i
] = addr2
[2] & 1;
334 /* issue bank reset to return to read mode */
335 addr2
[0] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00F000F0;
340 static int wait_for_DQ7_1(flash_info_t
* info
, int sect
)
342 ulong start
, now
, last
;
343 volatile CONFIG_SYS_FLASH_WORD_SIZE
*addr
=
344 (CONFIG_SYS_FLASH_WORD_SIZE
*) (info
->start
[sect
]);
346 start
= get_timer(0);
348 while ((addr
[0] & (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00800080) !=
349 (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00800080) {
350 if ((now
= get_timer(start
)) > CONFIG_SYS_FLASH_ERASE_TOUT
) {
354 /* show that we're waiting */
355 if ((now
- last
) > 1000) { /* every second */
363 #ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
364 int flash_erase(flash_info_t
* info
, int s_first
, int s_last
)
366 if (((info
->flash_id
& FLASH_TYPEMASK
) == FLASH_AM320B
) ||
367 ((info
->flash_id
& FLASH_TYPEMASK
) == FLASH_AM320T
) ||
368 ((info
->flash_id
& FLASH_TYPEMASK
) == FLASH_MXLV320T
) ||
369 ((info
->flash_id
& FLASH_TYPEMASK
) == FLASH_STMW320DT
)) {
370 return flash_erase_2(info
, s_first
, s_last
);
372 return flash_erase_1(info
, s_first
, s_last
);
376 static int flash_erase_1(flash_info_t
* info
, int s_first
, int s_last
)
378 int flash_erase(flash_info_t
* info
, int s_first
, int s_last
)
381 volatile CONFIG_SYS_FLASH_WORD_SIZE
*addr
= (CONFIG_SYS_FLASH_WORD_SIZE
*) (info
->start
[0]);
382 volatile CONFIG_SYS_FLASH_WORD_SIZE
*addr2
;
383 int flag
, prot
, sect
;
386 if ((s_first
< 0) || (s_first
> s_last
)) {
387 if (info
->flash_id
== FLASH_UNKNOWN
) {
388 printf("- missing\n");
390 printf("- no sectors to erase\n");
395 if (info
->flash_id
== FLASH_UNKNOWN
) {
396 printf("Can't erase unknown flash type - aborted\n");
401 for (sect
= s_first
; sect
<= s_last
; ++sect
) {
402 if (info
->protect
[sect
]) {
408 printf("- Warning: %d protected sectors will not be erased!\n",
414 /* Disable interrupts which might cause a timeout here */
415 flag
= disable_interrupts();
417 /* Start erase on unprotected sectors */
418 for (sect
= s_first
; sect
<= s_last
; sect
++) {
419 if (info
->protect
[sect
] == 0) { /* not protected */
420 addr2
= (CONFIG_SYS_FLASH_WORD_SIZE
*) (info
->start
[sect
]);
422 if ((info
->flash_id
& FLASH_VENDMASK
) == FLASH_MAN_SST
) {
423 addr
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00AA00AA;
424 addr
[CONFIG_SYS_FLASH_ADDR1
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00550055;
425 addr
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00800080;
426 addr
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00AA00AA;
427 addr
[CONFIG_SYS_FLASH_ADDR1
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00550055;
428 addr2
[0] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00500050; /* block erase */
429 for (i
= 0; i
< 50; i
++)
430 udelay(1000); /* wait 1 ms */
432 addr
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00AA00AA;
433 addr
[CONFIG_SYS_FLASH_ADDR1
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00550055;
434 addr
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00800080;
435 addr
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00AA00AA;
436 addr
[CONFIG_SYS_FLASH_ADDR1
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00550055;
437 addr2
[0] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00300030; /* sector erase */
440 * Wait for each sector to complete, it's more
441 * reliable. According to AMD Spec, you must
442 * issue all erase commands within a specified
443 * timeout. This has been seen to fail, especially
444 * if printf()s are included (for debug)!!
446 wait_for_DQ7_1(info
, sect
);
450 /* re-enable interrupts if necessary */
454 /* wait at least 80us - let's wait 1 ms */
457 /* reset to read mode */
458 addr
= (CONFIG_SYS_FLASH_WORD_SIZE
*) info
->start
[0];
459 addr
[0] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00F000F0; /* reset bank */
465 /*-----------------------------------------------------------------------
466 * Copy memory to flash, returns:
469 * 2 - Flash not erased
471 int write_buff(flash_info_t
* info
, uchar
* src
, ulong addr
, ulong cnt
)
476 wp
= (addr
& ~3); /* get lower word aligned address */
479 * handle unaligned start bytes
481 if ((l
= addr
- wp
) != 0) {
483 for (i
= 0, cp
= wp
; i
< l
; ++i
, ++cp
) {
484 data
= (data
<< 8) | (*(uchar
*) cp
);
486 for (; i
< 4 && cnt
> 0; ++i
) {
487 data
= (data
<< 8) | *src
++;
491 for (; cnt
== 0 && i
< 4; ++i
, ++cp
) {
492 data
= (data
<< 8) | (*(uchar
*) cp
);
495 if ((rc
= write_word(info
, wp
, data
)) != 0) {
502 * handle word aligned part
506 for (i
= 0; i
< 4; ++i
) {
507 data
= (data
<< 8) | *src
++;
509 if ((rc
= write_word(info
, wp
, data
)) != 0) {
521 * handle unaligned tail bytes
524 for (i
= 0, cp
= wp
; i
< 4 && cnt
> 0; ++i
, ++cp
) {
525 data
= (data
<< 8) | *src
++;
528 for (; i
< 4; ++i
, ++cp
) {
529 data
= (data
<< 8) | (*(uchar
*) cp
);
532 return (write_word(info
, wp
, data
));
535 /*-----------------------------------------------------------------------
536 * Copy memory to flash, returns:
539 * 2 - Flash not erased
541 #ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
542 static int write_word(flash_info_t
* info
, ulong dest
, ulong data
)
544 if (((info
->flash_id
& FLASH_TYPEMASK
) == FLASH_AM320B
) ||
545 ((info
->flash_id
& FLASH_TYPEMASK
) == FLASH_AM320T
) ||
546 ((info
->flash_id
& FLASH_TYPEMASK
) == FLASH_MXLV320T
) ||
547 ((info
->flash_id
& FLASH_TYPEMASK
) == FLASH_STMW320DT
)) {
548 return write_word_2(info
, dest
, data
);
550 return write_word_1(info
, dest
, data
);
554 static int write_word_1(flash_info_t
* info
, ulong dest
, ulong data
)
556 static int write_word(flash_info_t
* info
, ulong dest
, ulong data
)
559 volatile CONFIG_SYS_FLASH_WORD_SIZE
*addr2
= (CONFIG_SYS_FLASH_WORD_SIZE
*) (info
->start
[0]);
560 volatile CONFIG_SYS_FLASH_WORD_SIZE
*dest2
= (CONFIG_SYS_FLASH_WORD_SIZE
*) dest
;
561 volatile CONFIG_SYS_FLASH_WORD_SIZE
*data2
= (CONFIG_SYS_FLASH_WORD_SIZE
*) & data
;
565 /* Check if Flash is (sufficiently) erased */
566 if ((*((vu_long
*)dest
) & data
) != data
) {
570 for (i
= 0; i
< 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE
); i
++) {
573 /* Disable interrupts which might cause a timeout here */
574 flag
= disable_interrupts();
576 addr2
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00AA00AA;
577 addr2
[CONFIG_SYS_FLASH_ADDR1
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00550055;
578 addr2
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00A000A0;
582 /* re-enable interrupts if necessary */
586 /* data polling for D7 */
587 start
= get_timer(0);
588 while ((dest2
[i
] & (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00800080) !=
589 (data2
[i
] & (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00800080)) {
591 if (get_timer(start
) > CONFIG_SYS_FLASH_WRITE_TOUT
) {
600 #ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
602 #undef CONFIG_SYS_FLASH_WORD_SIZE
603 #define CONFIG_SYS_FLASH_WORD_SIZE unsigned short
606 * The following code cannot be run from FLASH!
608 static ulong
flash_get_size_2(vu_long
* addr
, flash_info_t
* info
)
612 CONFIG_SYS_FLASH_WORD_SIZE value
;
613 ulong base
= (ulong
) addr
;
614 volatile CONFIG_SYS_FLASH_WORD_SIZE
*addr2
= (CONFIG_SYS_FLASH_WORD_SIZE
*) addr
;
616 DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr
);
618 /* Write auto select command: read Manufacturer ID */
619 addr2
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00AA00AA;
620 addr2
[CONFIG_SYS_FLASH_ADDR1
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00550055;
621 addr2
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00900090;
625 DEBUGF("FLASH MANUFACT: %x\n", value
);
628 case (CONFIG_SYS_FLASH_WORD_SIZE
) AMD_MANUFACT
:
629 info
->flash_id
= FLASH_MAN_AMD
;
631 case (CONFIG_SYS_FLASH_WORD_SIZE
) FUJ_MANUFACT
:
632 info
->flash_id
= FLASH_MAN_FUJ
;
634 case (CONFIG_SYS_FLASH_WORD_SIZE
) SST_MANUFACT
:
635 info
->flash_id
= FLASH_MAN_SST
;
637 case (CONFIG_SYS_FLASH_WORD_SIZE
) STM_MANUFACT
:
638 info
->flash_id
= FLASH_MAN_STM
;
640 case (CONFIG_SYS_FLASH_WORD_SIZE
) MX_MANUFACT
:
641 info
->flash_id
= FLASH_MAN_MX
;
644 info
->flash_id
= FLASH_UNKNOWN
;
645 info
->sector_count
= 0;
647 return (0); /* no or unknown flash */
650 value
= addr2
[1]; /* device ID */
652 DEBUGF("\nFLASH DEVICEID: %x\n", value
);
656 case (CONFIG_SYS_FLASH_WORD_SIZE
)AMD_ID_LV320T
:
657 info
->flash_id
+= FLASH_AM320T
;
658 info
->sector_count
= 71;
659 info
->size
= 0x00400000; break; /* => 4 MiB */
661 case (CONFIG_SYS_FLASH_WORD_SIZE
)AMD_ID_LV320B
:
662 info
->flash_id
+= FLASH_AM320B
;
663 info
->sector_count
= 71;
664 info
->size
= 0x00400000; break; /* => 4 MiB */
666 case (CONFIG_SYS_FLASH_WORD_SIZE
)STM_ID_29W320DT
:
667 info
->flash_id
+= FLASH_STMW320DT
;
668 info
->sector_count
= 67;
669 info
->size
= 0x00400000; break; /* => 4 MiB */
671 case (CONFIG_SYS_FLASH_WORD_SIZE
)MX_ID_LV320T
:
672 info
->flash_id
+= FLASH_MXLV320T
;
673 info
->sector_count
= 71;
674 info
->size
= 0x00400000;
678 info
->flash_id
= FLASH_UNKNOWN
;
679 return (0); /* => no or unknown flash */
682 /* set up sector start address table */
683 if (((info
->flash_id
& FLASH_VENDMASK
) == FLASH_MAN_SST
) ||
684 ((info
->flash_id
& FLASH_TYPEMASK
) == FLASH_AM040
) ||
685 ((info
->flash_id
& FLASH_TYPEMASK
) == FLASH_AMD016
)) {
686 for (i
= 0; i
< info
->sector_count
; i
++)
687 info
->start
[i
] = base
+ (i
* 0x00010000);
688 } else if ((info
->flash_id
& FLASH_TYPEMASK
) == FLASH_STMW320DT
) {
689 /* set sector offsets for top boot block type */
691 i
= info
->sector_count
;
692 /* 1 x 16k boot sector */
695 info
->start
[i
] = base
;
696 /* 2 x 8k boot sectors */
697 for (n
=0; n
<2; ++n
) {
700 info
->start
[i
] = base
;
702 /* 1 x 32k boot sector */
705 info
->start
[i
] = base
;
707 while (i
> 0) { /* 64k regular sectors */
710 info
->start
[i
] = base
;
712 } else if ((info
->flash_id
& FLASH_TYPEMASK
) == FLASH_MXLV320T
) {
713 i
= info
->sector_count
- 1;
714 info
->start
[i
--] = base
+ info
->size
- 0x00002000;
715 info
->start
[i
--] = base
+ info
->size
- 0x00004000;
716 info
->start
[i
--] = base
+ info
->size
- 0x00006000;
717 info
->start
[i
--] = base
+ info
->size
- 0x00008000;
718 info
->start
[i
--] = base
+ info
->size
- 0x0000a000;
719 info
->start
[i
--] = base
+ info
->size
- 0x0000c000;
720 info
->start
[i
--] = base
+ info
->size
- 0x0000e000;
721 info
->start
[i
--] = base
+ info
->size
- 0x00010000;
724 info
->start
[i
] = base
+ i
* 0x00010000;
726 if (info
->flash_id
& FLASH_BTYPE
) {
727 /* set sector offsets for bottom boot block type */
728 info
->start
[0] = base
+ 0x00000000;
729 info
->start
[1] = base
+ 0x00002000;
730 info
->start
[2] = base
+ 0x00004000;
731 info
->start
[3] = base
+ 0x00006000;
732 info
->start
[4] = base
+ 0x00008000;
733 info
->start
[5] = base
+ 0x0000a000;
734 info
->start
[6] = base
+ 0x0000c000;
735 info
->start
[7] = base
+ 0x0000e000;
736 for (i
= 8; i
< info
->sector_count
; i
++) {
738 base
+ ((i
-7) * 0x00010000);
741 /* set sector offsets for top boot block type */
742 i
= info
->sector_count
- 1;
743 info
->start
[i
--] = base
+ info
->size
- 0x00002000;
744 info
->start
[i
--] = base
+ info
->size
- 0x00004000;
745 info
->start
[i
--] = base
+ info
->size
- 0x00006000;
746 info
->start
[i
--] = base
+ info
->size
- 0x00008000;
747 info
->start
[i
--] = base
+ info
->size
- 0x0000a000;
748 info
->start
[i
--] = base
+ info
->size
- 0x0000c000;
749 info
->start
[i
--] = base
+ info
->size
- 0x0000e000;
750 for (; i
>= 0; i
--) {
751 info
->start
[i
] = base
+ i
* 0x00010000;
756 /* check for protected sectors */
757 for (i
= 0; i
< info
->sector_count
; i
++) {
758 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
759 /* D0 = 1 if protected */
760 addr2
= (volatile CONFIG_SYS_FLASH_WORD_SIZE
*)(info
->start
[i
]);
762 /* For AMD29033C flash we need to resend the command of *
763 * reading flash protection for upper 8 Mb of flash */
765 addr2
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0xAAAAAAAA;
766 addr2
[CONFIG_SYS_FLASH_ADDR1
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x55555555;
767 addr2
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x90909090;
770 if ((info
->flash_id
& FLASH_VENDMASK
) == FLASH_MAN_SST
)
771 info
->protect
[i
] = 0;
773 info
->protect
[i
] = addr2
[2] & 1;
776 /* issue bank reset to return to read mode */
777 addr2
[0] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00F000F0;
782 static int wait_for_DQ7_2(flash_info_t
* info
, int sect
)
784 ulong start
, now
, last
;
785 volatile CONFIG_SYS_FLASH_WORD_SIZE
*addr
=
786 (CONFIG_SYS_FLASH_WORD_SIZE
*) (info
->start
[sect
]);
788 start
= get_timer(0);
790 while ((addr
[0] & (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00800080) !=
791 (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00800080) {
792 if ((now
= get_timer(start
)) > CONFIG_SYS_FLASH_ERASE_TOUT
) {
796 /* show that we're waiting */
797 if ((now
- last
) > 1000) { /* every second */
805 static int flash_erase_2(flash_info_t
* info
, int s_first
, int s_last
)
807 volatile CONFIG_SYS_FLASH_WORD_SIZE
*addr
= (CONFIG_SYS_FLASH_WORD_SIZE
*) (info
->start
[0]);
808 volatile CONFIG_SYS_FLASH_WORD_SIZE
*addr2
;
809 int flag
, prot
, sect
;
812 if ((s_first
< 0) || (s_first
> s_last
)) {
813 if (info
->flash_id
== FLASH_UNKNOWN
) {
814 printf("- missing\n");
816 printf("- no sectors to erase\n");
821 if (info
->flash_id
== FLASH_UNKNOWN
) {
822 printf("Can't erase unknown flash type - aborted\n");
827 for (sect
= s_first
; sect
<= s_last
; ++sect
) {
828 if (info
->protect
[sect
]) {
834 printf("- Warning: %d protected sectors will not be erased!\n",
840 /* Disable interrupts which might cause a timeout here */
841 flag
= disable_interrupts();
843 /* Start erase on unprotected sectors */
844 for (sect
= s_first
; sect
<= s_last
; sect
++) {
845 if (info
->protect
[sect
] == 0) { /* not protected */
846 addr2
= (CONFIG_SYS_FLASH_WORD_SIZE
*) (info
->start
[sect
]);
848 if ((info
->flash_id
& FLASH_VENDMASK
) == FLASH_MAN_SST
) {
849 addr
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00AA00AA;
850 addr
[CONFIG_SYS_FLASH_ADDR1
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00550055;
851 addr
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00800080;
852 addr
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00AA00AA;
853 addr
[CONFIG_SYS_FLASH_ADDR1
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00550055;
854 addr2
[0] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00500050; /* block erase */
855 for (i
= 0; i
< 50; i
++)
856 udelay(1000); /* wait 1 ms */
858 addr
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00AA00AA;
859 addr
[CONFIG_SYS_FLASH_ADDR1
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00550055;
860 addr
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00800080;
861 addr
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00AA00AA;
862 addr
[CONFIG_SYS_FLASH_ADDR1
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00550055;
863 addr2
[0] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00300030; /* sector erase */
866 * Wait for each sector to complete, it's more
867 * reliable. According to AMD Spec, you must
868 * issue all erase commands within a specified
869 * timeout. This has been seen to fail, especially
870 * if printf()s are included (for debug)!!
872 wait_for_DQ7_2(info
, sect
);
876 /* re-enable interrupts if necessary */
880 /* wait at least 80us - let's wait 1 ms */
883 /* reset to read mode */
884 addr
= (CONFIG_SYS_FLASH_WORD_SIZE
*) info
->start
[0];
885 addr
[0] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00F000F0; /* reset bank */
891 static int write_word_2(flash_info_t
* info
, ulong dest
, ulong data
)
893 ulong
*data_ptr
= &data
;
894 volatile CONFIG_SYS_FLASH_WORD_SIZE
*addr2
= (CONFIG_SYS_FLASH_WORD_SIZE
*)(info
->start
[0]);
895 volatile CONFIG_SYS_FLASH_WORD_SIZE
*dest2
= (CONFIG_SYS_FLASH_WORD_SIZE
*)dest
;
896 volatile CONFIG_SYS_FLASH_WORD_SIZE
*data2
= (CONFIG_SYS_FLASH_WORD_SIZE
*)data_ptr
;
900 /* Check if Flash is (sufficiently) erased */
901 if ((*((vu_long
*)dest
) & data
) != data
) {
905 for (i
= 0; i
< 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE
); i
++) {
908 /* Disable interrupts which might cause a timeout here */
909 flag
= disable_interrupts();
911 addr2
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00AA00AA;
912 addr2
[CONFIG_SYS_FLASH_ADDR1
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00550055;
913 addr2
[CONFIG_SYS_FLASH_ADDR0
] = (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00A000A0;
917 /* re-enable interrupts if necessary */
921 /* data polling for D7 */
922 start
= get_timer(0);
923 while ((dest2
[i
] & (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00800080) !=
924 (data2
[i
] & (CONFIG_SYS_FLASH_WORD_SIZE
) 0x00800080)) {
926 if (get_timer(start
) > CONFIG_SYS_FLASH_WRITE_TOUT
) {
934 #endif /* CONFIG_SYS_FLASH_2ND_16BIT_DEV */