]>
git.ipfire.org Git - people/ms/u-boot.git/blob - board/sandpoint/flash.c
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 #include <asm/processor.h>
27 #include <asm/pci_io.h>
30 #define ROM_CS0_START 0xFF800000
31 #define ROM_CS1_START 0xFF000000
33 flash_info_t flash_info
[CFG_MAX_FLASH_BANKS
]; /* info for FLASH chips */
35 #if defined(CONFIG_ENV_IS_IN_FLASH)
37 # define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
40 # define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
42 # ifndef CFG_ENV_SECT_SIZE
43 # define CFG_ENV_SECT_SIZE CFG_ENV_SIZE
47 /*-----------------------------------------------------------------------
50 static int write_word (flash_info_t
*info
, ulong dest
, ulong data
);
52 static void flash_get_offsets (ulong base
, flash_info_t
*info
);
55 /*flash command address offsets*/
67 #define FLASH_WORD_SIZE unsigned char
69 /*-----------------------------------------------------------------------
73 static int byte_parity_odd(unsigned char x
) __attribute__ ((const));
75 static unsigned long flash_id(unsigned char mfct
, unsigned char chip
) __attribute__ ((const));
79 FLASH_WORD_SIZE extval
;
80 unsigned short intval
;
85 byte_parity_odd(unsigned char x
)
90 return (x
& 0x1) != 0;
96 flash_id(unsigned char mfct
, unsigned char chip
)
98 static const map_entry mfct_map
[] =
100 {(FLASH_WORD_SIZE
) AMD_MANUFACT
, (unsigned short) ((unsigned long) FLASH_MAN_AMD
>> 16)},
101 {(FLASH_WORD_SIZE
) FUJ_MANUFACT
, (unsigned short) ((unsigned long) FLASH_MAN_FUJ
>> 16)},
102 {(FLASH_WORD_SIZE
) STM_MANUFACT
, (unsigned short) ((unsigned long) FLASH_MAN_STM
>> 16)},
103 {(FLASH_WORD_SIZE
) MT_MANUFACT
, (unsigned short) ((unsigned long) FLASH_MAN_MT
>> 16)},
104 {(FLASH_WORD_SIZE
) INTEL_MANUFACT
,(unsigned short) ((unsigned long) FLASH_MAN_INTEL
>> 16)},
105 {(FLASH_WORD_SIZE
) INTEL_ALT_MANU
,(unsigned short) ((unsigned long) FLASH_MAN_INTEL
>> 16)}
108 static const map_entry chip_map
[] =
110 {AMD_ID_F040B
, FLASH_AM040
},
111 {(FLASH_WORD_SIZE
) STM_ID_x800AB
, FLASH_STM800AB
}
115 unsigned long result
= FLASH_UNKNOWN
;
118 for(p
= &chip_map
[0]; p
< &chip_map
[sizeof chip_map
/ sizeof chip_map
[0]]; p
++)
119 if(p
->extval
== chip
)
121 result
= FLASH_VENDMASK
| p
->intval
;
126 for(p
= &mfct_map
[0]; p
< &mfct_map
[sizeof mfct_map
/ sizeof mfct_map
[0]]; p
++)
127 if(p
->extval
== mfct
)
129 result
&= ~FLASH_VENDMASK
;
130 result
|= (unsigned long) p
->intval
<< 16;
143 static const ulong flash_banks
[] = CFG_FLASH_BANKS
;
145 /* Init: no FLASHes known */
146 for (i
= 0; i
< CFG_MAX_FLASH_BANKS
; i
++)
148 flash_info_t
* const pflinfo
= &flash_info
[i
];
149 pflinfo
->flash_id
= FLASH_UNKNOWN
;
151 pflinfo
->sector_count
= 0;
154 /* Enable writes to Sandpoint flash */
156 register unsigned char temp
;
157 CONFIG_READ_BYTE(CFG_WINBOND_ISA_CFG_ADDR
+ WINBOND_CSCR
, temp
);
158 temp
&= ~0x20; /* clear BIOSWP bit */
159 CONFIG_WRITE_BYTE(CFG_WINBOND_ISA_CFG_ADDR
+ WINBOND_CSCR
, temp
);
162 for(i
= 0; i
< sizeof flash_banks
/ sizeof flash_banks
[0]; i
++)
164 flash_info_t
* const pflinfo
= &flash_info
[i
];
165 const unsigned long base_address
= flash_banks
[i
];
166 volatile FLASH_WORD_SIZE
* const flash
= (FLASH_WORD_SIZE
*) base_address
;
168 volatile FLASH_WORD_SIZE
* addr2
;
171 /* write autoselect sequence */
172 flash
[0x5555] = 0xaa;
173 flash
[0x2aaa] = 0x55;
174 flash
[0x5555] = 0x90;
176 flash
[0xAAA << (3 * i
)] = 0xaa;
177 flash
[0x555 << (3 * i
)] = 0x55;
178 flash
[0xAAA << (3 * i
)] = 0x90;
180 __asm__
__volatile__("sync");
183 pflinfo
->flash_id
= flash_id(flash
[0x0], flash
[0x1]);
185 pflinfo
->flash_id
= flash_id(flash
[0x0], flash
[0x2 + 14 * i
]);
188 switch(pflinfo
->flash_id
& FLASH_TYPEMASK
)
191 pflinfo
->size
= 0x00080000;
192 pflinfo
->sector_count
= 8;
193 for(j
= 0; j
< 8; j
++)
195 pflinfo
->start
[j
] = base_address
+ 0x00010000 * j
;
196 pflinfo
->protect
[j
] = flash
[(j
<< 16) | 0x2];
200 pflinfo
->size
= 0x00100000;
201 pflinfo
->sector_count
= 19;
202 pflinfo
->start
[0] = base_address
;
203 pflinfo
->start
[1] = base_address
+ 0x4000;
204 pflinfo
->start
[2] = base_address
+ 0x6000;
205 pflinfo
->start
[3] = base_address
+ 0x8000;
206 for(j
= 1; j
< 16; j
++)
208 pflinfo
->start
[j
+3] = base_address
+ 0x00010000 * j
;
211 /* check for protected sectors */
212 for (j
= 0; j
< pflinfo
->sector_count
; j
++) {
213 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
214 /* D0 = 1 if protected */
215 addr2
= (volatile FLASH_WORD_SIZE
*)(pflinfo
->start
[j
]);
216 if (pflinfo
->flash_id
& FLASH_MAN_SST
)
217 pflinfo
->protect
[j
] = 0;
219 pflinfo
->protect
[j
] = addr2
[2] & 1;
224 /* Protect monitor and environment sectors
226 #if CFG_MONITOR_BASE >= CFG_FLASH_BASE
227 flash_protect(FLAG_PROTECT_SET
,
229 CFG_MONITOR_BASE
+ monitor_flash_len
- 1,
233 #if defined(CONFIG_ENV_IS_IN_FLASH) && defined(CFG_ENV_ADDR)
234 flash_protect(FLAG_PROTECT_SET
,
236 CFG_ENV_ADDR
+ CFG_ENV_SIZE
- 1,
240 /* reset device to read mode */
241 flash
[0x0000] = 0xf0;
242 __asm__
__volatile__("sync");
245 return flash_info
[0].size
+ flash_info
[1].size
;
250 flash_get_offsets (ulong base
, flash_info_t
*info
)
254 /* set up sector start address table */
255 if (info
->flash_id
& FLASH_MAN_SST
)
257 for (i
= 0; i
< info
->sector_count
; i
++)
258 info
->start
[i
] = base
+ (i
* 0x00010000);
261 if (info
->flash_id
& FLASH_BTYPE
) {
262 /* set sector offsets for bottom boot block type */
263 info
->start
[0] = base
+ 0x00000000;
264 info
->start
[1] = base
+ 0x00004000;
265 info
->start
[2] = base
+ 0x00006000;
266 info
->start
[3] = base
+ 0x00008000;
267 for (i
= 4; i
< info
->sector_count
; i
++) {
268 info
->start
[i
] = base
+ (i
* 0x00010000) - 0x00030000;
271 /* set sector offsets for top boot block type */
272 i
= info
->sector_count
- 1;
273 info
->start
[i
--] = base
+ info
->size
- 0x00004000;
274 info
->start
[i
--] = base
+ info
->size
- 0x00006000;
275 info
->start
[i
--] = base
+ info
->size
- 0x00008000;
276 for (; i
>= 0; i
--) {
277 info
->start
[i
] = base
+ i
* 0x00010000;
284 /*-----------------------------------------------------------------------
287 flash_print_info(flash_info_t
*info
)
289 static const char unk
[] = "Unknown";
290 const char *mfct
= unk
, *type
= unk
;
293 if(info
->flash_id
!= FLASH_UNKNOWN
)
295 switch(info
->flash_id
& FLASH_VENDMASK
)
297 case FLASH_MAN_AMD
: mfct
= "AMD"; break;
298 case FLASH_MAN_FUJ
: mfct
= "FUJITSU"; break;
299 case FLASH_MAN_STM
: mfct
= "STM"; break;
300 case FLASH_MAN_SST
: mfct
= "SST"; break;
301 case FLASH_MAN_BM
: mfct
= "Bright Microelectonics"; break;
302 case FLASH_MAN_INTEL
: mfct
= "Intel"; break;
305 switch(info
->flash_id
& FLASH_TYPEMASK
)
307 case FLASH_AM040
: type
= "AM29F040B (512K * 8, uniform sector size)"; break;
308 case FLASH_AM400B
: type
= "AM29LV400B (4 Mbit, bottom boot sect)"; break;
309 case FLASH_AM400T
: type
= "AM29LV400T (4 Mbit, top boot sector)"; break;
310 case FLASH_AM800B
: type
= "AM29LV800B (8 Mbit, bottom boot sect)"; break;
311 case FLASH_AM800T
: type
= "AM29LV800T (8 Mbit, top boot sector)"; break;
312 case FLASH_AM160T
: type
= "AM29LV160T (16 Mbit, top boot sector)"; break;
313 case FLASH_AM320B
: type
= "AM29LV320B (32 Mbit, bottom boot sect)"; break;
314 case FLASH_AM320T
: type
= "AM29LV320T (32 Mbit, top boot sector)"; break;
315 case FLASH_STM800AB
: type
= "M29W800AB (8 Mbit, bottom boot sect)"; break;
316 case FLASH_SST800A
: type
= "SST39LF/VF800 (8 Mbit, uniform sector size)"; break;
317 case FLASH_SST160A
: type
= "SST39LF/VF160 (16 Mbit, uniform sector size)"; break;
322 "\n Brand: %s Type: %s\n"
323 " Size: %lu KB in %d Sectors\n",
330 printf (" Sector Start Addresses:");
332 for (i
= 0; i
< info
->sector_count
; i
++)
336 unsigned long * flash
= (unsigned long *) info
->start
[i
];
339 * Check if whole sector is erased
342 (i
!= (info
->sector_count
- 1)) ?
343 (info
->start
[i
+ 1] - info
->start
[i
]) >> 2 :
344 (info
->start
[0] + info
->size
- info
->start
[i
]) >> 2;
347 flash
= (unsigned long *) info
->start
[i
], erased
= 1;
348 (flash
!= (unsigned long *) info
->start
[i
] + size
) && erased
;
351 erased
= *flash
== ~0x0UL
;
355 (i
% 5) ? "" : "\n ",
358 info
->protect
[i
] ? "RO" : " "
369 * The following code cannot be run from FLASH!
372 flash_get_size (vu_long
*addr
, flash_info_t
*info
)
375 FLASH_WORD_SIZE value
;
376 ulong base
= (ulong
)addr
;
377 volatile FLASH_WORD_SIZE
*addr2
= (FLASH_WORD_SIZE
*)addr
;
379 printf("flash_get_size: \n");
380 /* Write auto select command: read Manufacturer ID */
382 addr2
[ADDR0
] = (FLASH_WORD_SIZE
)0xAA;
383 addr2
[ADDR1
] = (FLASH_WORD_SIZE
)0x55;
384 addr2
[ADDR0
] = (FLASH_WORD_SIZE
)0x90;
388 case (FLASH_WORD_SIZE
)AMD_MANUFACT
:
389 info
->flash_id
= FLASH_MAN_AMD
;
391 case (FLASH_WORD_SIZE
)FUJ_MANUFACT
:
392 info
->flash_id
= FLASH_MAN_FUJ
;
394 case (FLASH_WORD_SIZE
)SST_MANUFACT
:
395 info
->flash_id
= FLASH_MAN_SST
;
398 info
->flash_id
= FLASH_UNKNOWN
;
399 info
->sector_count
= 0;
401 return (0); /* no or unknown flash */
403 printf("recognised manufacturer");
405 value
= addr2
[ADDR3
]; /* device ID */
406 debug ("\ndev_code=%x\n", value
);
409 case (FLASH_WORD_SIZE
)AMD_ID_LV400T
:
410 info
->flash_id
+= FLASH_AM400T
;
411 info
->sector_count
= 11;
412 info
->size
= 0x00080000;
413 break; /* => 0.5 MB */
415 case (FLASH_WORD_SIZE
)AMD_ID_LV400B
:
416 info
->flash_id
+= FLASH_AM400B
;
417 info
->sector_count
= 11;
418 info
->size
= 0x00080000;
419 break; /* => 0.5 MB */
421 case (FLASH_WORD_SIZE
)AMD_ID_LV800T
:
422 info
->flash_id
+= FLASH_AM800T
;
423 info
->sector_count
= 19;
424 info
->size
= 0x00100000;
427 case (FLASH_WORD_SIZE
)AMD_ID_LV800B
:
428 info
->flash_id
+= FLASH_AM800B
;
429 info
->sector_count
= 19;
430 info
->size
= 0x00100000;
433 case (FLASH_WORD_SIZE
)AMD_ID_LV160T
:
434 info
->flash_id
+= FLASH_AM160T
;
435 info
->sector_count
= 35;
436 info
->size
= 0x00200000;
439 case (FLASH_WORD_SIZE
)AMD_ID_LV160B
:
440 info
->flash_id
+= FLASH_AM160B
;
441 info
->sector_count
= 35;
442 info
->size
= 0x00200000;
445 case (FLASH_WORD_SIZE
)SST_ID_xF800A
:
446 info
->flash_id
+= FLASH_SST800A
;
447 info
->sector_count
= 16;
448 info
->size
= 0x00100000;
451 case (FLASH_WORD_SIZE
)SST_ID_xF160A
:
452 info
->flash_id
+= FLASH_SST160A
;
453 info
->sector_count
= 32;
454 info
->size
= 0x00200000;
457 case (FLASH_WORD_SIZE
)AMD_ID_F040B
:
458 info
->flash_id
+= FLASH_AM040
;
459 info
->sector_count
= 8;
460 info
->size
= 0x00080000;
461 break; /* => 0.5 MB */
464 info
->flash_id
= FLASH_UNKNOWN
;
465 return (0); /* => no or unknown flash */
469 printf("flash id %lx; sector count %x, size %lx\n", info
->flash_id
,info
->sector_count
,info
->size
);
470 /* set up sector start address table */
471 if (info
->flash_id
& FLASH_MAN_SST
)
473 for (i
= 0; i
< info
->sector_count
; i
++)
474 info
->start
[i
] = base
+ (i
* 0x00010000);
477 if (info
->flash_id
& FLASH_BTYPE
) {
478 /* set sector offsets for bottom boot block type */
479 info
->start
[0] = base
+ 0x00000000;
480 info
->start
[1] = base
+ 0x00004000;
481 info
->start
[2] = base
+ 0x00006000;
482 info
->start
[3] = base
+ 0x00008000;
483 for (i
= 4; i
< info
->sector_count
; i
++) {
484 info
->start
[i
] = base
+ (i
* 0x00010000) - 0x00030000;
487 /* set sector offsets for top boot block type */
488 i
= info
->sector_count
- 1;
489 info
->start
[i
--] = base
+ info
->size
- 0x00004000;
490 info
->start
[i
--] = base
+ info
->size
- 0x00006000;
491 info
->start
[i
--] = base
+ info
->size
- 0x00008000;
492 for (; i
>= 0; i
--) {
493 info
->start
[i
] = base
+ i
* 0x00010000;
497 /* check for protected sectors */
498 for (i
= 0; i
< info
->sector_count
; i
++) {
499 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
500 /* D0 = 1 if protected */
501 addr2
= (volatile FLASH_WORD_SIZE
*)(info
->start
[i
]);
502 if (info
->flash_id
& FLASH_MAN_SST
)
503 info
->protect
[i
] = 0;
505 info
->protect
[i
] = addr2
[2] & 1;
509 * Prevent writes to uninitialized FLASH.
511 if (info
->flash_id
!= FLASH_UNKNOWN
) {
512 addr2
= (FLASH_WORD_SIZE
*)info
->start
[0];
513 *addr2
= (FLASH_WORD_SIZE
)0x00F000F0; /* reset bank */
523 flash_erase(flash_info_t
*info
, int s_first
, int s_last
)
525 volatile FLASH_WORD_SIZE
*addr
= (FLASH_WORD_SIZE
*)(info
->start
[0]);
526 int flag
, prot
, sect
, l_sect
;
527 ulong start
, now
, last
;
530 if ((s_first
< 0) || (s_first
> s_last
)) {
531 if (info
->flash_id
== FLASH_UNKNOWN
) {
532 printf ("- missing\n");
534 printf ("- no sectors to erase\n");
539 if ((info
->flash_id
== FLASH_UNKNOWN
) ||
540 (info
->flash_id
> (FLASH_MAN_STM
| FLASH_AMD_COMP
))) {
541 printf ("Can't erase unknown flash type - aborted\n");
546 for (sect
=s_first
; sect
<=s_last
; ++sect
) {
547 if (info
->protect
[sect
]) {
553 printf ("- Warning: %d protected sectors will not be erased!\n",
561 /* Check the ROM CS */
562 if ((info
->start
[0] >= ROM_CS1_START
) && (info
->start
[0] < ROM_CS0_START
))
567 /* Disable interrupts which might cause a timeout here */
568 flag
= disable_interrupts();
570 addr
[ADDR0
<< sh8b
] = (FLASH_WORD_SIZE
)0x00AA00AA;
571 addr
[ADDR1
<< sh8b
] = (FLASH_WORD_SIZE
)0x00550055;
572 addr
[ADDR0
<< sh8b
] = (FLASH_WORD_SIZE
)0x00800080;
573 addr
[ADDR0
<< sh8b
] = (FLASH_WORD_SIZE
)0x00AA00AA;
574 addr
[ADDR1
<< sh8b
] = (FLASH_WORD_SIZE
)0x00550055;
576 /* Start erase on unprotected sectors */
577 for (sect
= s_first
; sect
<=s_last
; sect
++) {
578 if (info
->protect
[sect
] == 0) { /* not protected */
579 addr
= (FLASH_WORD_SIZE
*)(info
->start
[0] + (
580 (info
->start
[sect
] - info
->start
[0]) << sh8b
));
581 if (info
->flash_id
& FLASH_MAN_SST
)
583 addr
[ADDR0
<< sh8b
] = (FLASH_WORD_SIZE
)0x00AA00AA;
584 addr
[ADDR1
<< sh8b
] = (FLASH_WORD_SIZE
)0x00550055;
585 addr
[ADDR0
<< sh8b
] = (FLASH_WORD_SIZE
)0x00800080;
586 addr
[ADDR0
<< sh8b
] = (FLASH_WORD_SIZE
)0x00AA00AA;
587 addr
[ADDR1
<< sh8b
] = (FLASH_WORD_SIZE
)0x00550055;
588 addr
[0] = (FLASH_WORD_SIZE
)0x00500050; /* block erase */
589 udelay(30000); /* wait 30 ms */
592 addr
[0] = (FLASH_WORD_SIZE
)0x00300030; /* sector erase */
597 /* re-enable interrupts if necessary */
601 /* wait at least 80us - let's wait 1 ms */
605 * We wait for the last triggered sector
610 start
= get_timer (0);
612 addr
= (FLASH_WORD_SIZE
*)(info
->start
[0] + (
613 (info
->start
[l_sect
] - info
->start
[0]) << sh8b
));
614 while ((addr
[0] & (FLASH_WORD_SIZE
)0x00800080) != (FLASH_WORD_SIZE
)0x00800080) {
615 if ((now
= get_timer(start
)) > CFG_FLASH_ERASE_TOUT
) {
616 printf ("Timeout\n");
619 /* show that we're waiting */
620 if ((now
- last
) > 1000) { /* every second */
627 /* reset to read mode */
628 addr
= (FLASH_WORD_SIZE
*)info
->start
[0];
629 addr
[0] = (FLASH_WORD_SIZE
)0x00F000F0; /* reset bank */
635 /*-----------------------------------------------------------------------
636 * Copy memory to flash, returns:
639 * 2 - Flash not erased
642 int write_buff (flash_info_t
*info
, uchar
*src
, ulong addr
, ulong cnt
)
647 wp
= (addr
& ~3); /* get lower word aligned address */
650 * handle unaligned start bytes
652 if ((l
= addr
- wp
) != 0) {
654 for (i
=0, cp
=wp
; i
<l
; ++i
, ++cp
) {
655 data
= (data
<< 8) | (*(uchar
*)cp
);
657 for (; i
<4 && cnt
>0; ++i
) {
658 data
= (data
<< 8) | *src
++;
662 for (; cnt
==0 && i
<4; ++i
, ++cp
) {
663 data
= (data
<< 8) | (*(uchar
*)cp
);
666 if ((rc
= write_word(info
, wp
, data
)) != 0) {
673 * handle word aligned part
677 for (i
=0; i
<4; ++i
) {
678 data
= (data
<< 8) | *src
++;
680 if ((rc
= write_word(info
, wp
, data
)) != 0) {
692 * handle unaligned tail bytes
695 for (i
=0, cp
=wp
; i
<4 && cnt
>0; ++i
, ++cp
) {
696 data
= (data
<< 8) | *src
++;
699 for (; i
<4; ++i
, ++cp
) {
700 data
= (data
<< 8) | (*(uchar
*)cp
);
703 return (write_word(info
, wp
, data
));
706 /*-----------------------------------------------------------------------
707 * Write a word to Flash, returns:
710 * 2 - Flash not erased
712 static int write_word (flash_info_t
*info
, ulong dest
, ulong data
)
714 volatile FLASH_WORD_SIZE
*addr2
= (FLASH_WORD_SIZE
*)info
->start
[0];
715 volatile FLASH_WORD_SIZE
*dest2
;
716 volatile FLASH_WORD_SIZE
*data2
= (FLASH_WORD_SIZE
*)&data
;
722 /* Check the ROM CS */
723 if ((info
->start
[0] >= ROM_CS1_START
) && (info
->start
[0] < ROM_CS0_START
))
728 dest2
= (FLASH_WORD_SIZE
*)(((dest
- info
->start
[0]) << sh8b
) +
731 /* Check if Flash is (sufficiently) erased */
732 if ((*dest2
& (FLASH_WORD_SIZE
)data
) != (FLASH_WORD_SIZE
)data
) {
735 /* Disable interrupts which might cause a timeout here */
736 flag
= disable_interrupts();
738 for (i
=0; i
<4/sizeof(FLASH_WORD_SIZE
); i
++)
740 addr2
[ADDR0
<< sh8b
] = (FLASH_WORD_SIZE
)0x00AA00AA;
741 addr2
[ADDR1
<< sh8b
] = (FLASH_WORD_SIZE
)0x00550055;
742 addr2
[ADDR0
<< sh8b
] = (FLASH_WORD_SIZE
)0x00A000A0;
744 dest2
[i
<< sh8b
] = data2
[i
];
746 /* re-enable interrupts if necessary */
750 /* data polling for D7 */
751 start
= get_timer (0);
752 while ((dest2
[i
<< sh8b
] & (FLASH_WORD_SIZE
)0x00800080) !=
753 (data2
[i
] & (FLASH_WORD_SIZE
)0x00800080)) {
754 if (get_timer(start
) > CFG_FLASH_WRITE_TOUT
) {
763 /*-----------------------------------------------------------------------