9 * Originated from ppcboot-2.0.0/board/esd/cpci440/strataflash.c
12 * Brad Kemp, Seranoa Networks, Brad.Kemp@seranoa.com
14 * See file CREDITS for list of people who contributed to this
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License as
19 * published by the Free Software Foundation; either version 2 of
20 * the License, or (at your option) any later version.
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
34 #include <asm/processor.h>
38 * This file implements a Common Flash Interface (CFI) driver for ppcboot.
39 * The width of the port and the width of the chips are determined at initialization.
40 * These widths are used to calculate the address for access CFI data structures.
41 * It has been tested on an Intel Strataflash implementation.
44 * JEDEC Standard JESD68 - Common Flash Interface (CFI)
45 * JEDEC Standard JEP137-A Common Flash Interface (CFI) ID Codes
46 * Intel Application Note 646 Common Flash Interface (CFI) and Command Sets
47 * Intel 290667-008 3 Volt Intel StrataFlash Memory datasheet
50 * Use Primary Extended Query table (PRI) and Alternate Algorithm Query Table (ALT) to determine if protection is available
51 * Add support for other command sets Use the PRI and ALT to determine command set
52 * Verify erase and program timeouts.
55 #define FLASH_CMD_CFI 0x98
56 #define FLASH_CMD_READ_ID 0x90
57 #define FLASH_CMD_RESET 0xff
58 #define FLASH_CMD_BLOCK_ERASE 0x20
59 #define FLASH_CMD_ERASE_CONFIRM 0xD0
60 #define FLASH_CMD_WRITE 0x40
61 #define FLASH_CMD_PROTECT 0x60
62 #define FLASH_CMD_PROTECT_SET 0x01
63 #define FLASH_CMD_PROTECT_CLEAR 0xD0
64 #define FLASH_CMD_CLEAR_STATUS 0x50
65 #define FLASH_CMD_WRITE_TO_BUFFER 0xE8
66 #define FLASH_CMD_WRITE_BUFFER_CONFIRM 0xD0
68 #define FLASH_STATUS_DONE 0x80
69 #define FLASH_STATUS_ESS 0x40
70 #define FLASH_STATUS_ECLBS 0x20
71 #define FLASH_STATUS_PSLBS 0x10
72 #define FLASH_STATUS_VPENS 0x08
73 #define FLASH_STATUS_PSS 0x04
74 #define FLASH_STATUS_DPS 0x02
75 #define FLASH_STATUS_R 0x01
76 #define FLASH_STATUS_PROTECT 0x01
78 #define FLASH_OFFSET_CFI 0x55
79 #define FLASH_OFFSET_CFI_RESP 0x10
80 #define FLASH_OFFSET_WTOUT 0x1F
81 #define FLASH_OFFSET_WBTOUT 0x20
82 #define FLASH_OFFSET_ETOUT 0x21
83 #define FLASH_OFFSET_CETOUT 0x22
84 #define FLASH_OFFSET_WMAX_TOUT 0x23
85 #define FLASH_OFFSET_WBMAX_TOUT 0x24
86 #define FLASH_OFFSET_EMAX_TOUT 0x25
87 #define FLASH_OFFSET_CEMAX_TOUT 0x26
88 #define FLASH_OFFSET_SIZE 0x27
89 #define FLASH_OFFSET_INTERFACE 0x28
90 #define FLASH_OFFSET_BUFFER_SIZE 0x2A
91 #define FLASH_OFFSET_NUM_ERASE_REGIONS 0x2C
92 #define FLASH_OFFSET_ERASE_REGIONS 0x2D
93 #define FLASH_OFFSET_PROTECT 0x02
94 #define FLASH_OFFSET_USER_PROTECTION 0x85
95 #define FLASH_OFFSET_INTEL_PROTECTION 0x81
98 #define FLASH_MAN_CFI 0x01000000
115 #define NUM_ERASE_REGIONS 4
117 flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
120 /*-----------------------------------------------------------------------
126 static void flash_add_byte(flash_info_t *info, cfiword_t * cword, uchar c);
127 static void flash_make_cmd(flash_info_t * info, uchar cmd, void * cmdbuf);
128 static void flash_write_cmd(flash_info_t * info, int sect, uchar offset, uchar cmd);
129 static int flash_isequal(flash_info_t * info, int sect, uchar offset, uchar cmd);
130 static int flash_isset(flash_info_t * info, int sect, uchar offset, uchar cmd);
131 static int flash_detect_cfi(flash_info_t * info);
132 static ulong flash_get_size (ulong base, int banknum);
133 static int flash_write_cfiword (flash_info_t *info, ulong dest, cfiword_t cword);
134 static int flash_full_status_check(flash_info_t * info, ulong sector, ulong tout, char * prompt);
135 #ifdef CFG_FLASH_USE_BUFFER_WRITE
136 static int flash_write_cfibuffer(flash_info_t * info, ulong dest, uchar * cp, int len);
138 /*-----------------------------------------------------------------------
139 * create an address based on the offset and the port width
141 uchar * flash_make_addr(flash_info_t * info, int sect, int offset)
143 return ((uchar *)(info->start[sect] + (offset * info->chipwidth)));
145 /*-----------------------------------------------------------------------
146 * read a character at a port width address
148 uchar flash_read_uchar(flash_info_t * info, uchar offset)
150 if (info->portwidth == FLASH_CFI_8BIT) {
153 cp = flash_make_addr(info, 0, offset);
156 printf("flash_read_uchar offset=%04x ptr=%08x c=%02x\n",
157 offset, (unsigned int)cp, c);
161 } else if (info->portwidth == FLASH_CFI_16BIT) {
165 sp = (ushort*)flash_make_addr(info, 0, offset);
169 printf("flash_read_uchar offset=%04x ptr=%08x s=%04x c=%02x\n",
170 offset, (unsigned int)sp, s, c);
179 /*-----------------------------------------------------------------------
180 * read a short word by swapping for ppc format.
182 ushort flash_read_ushort(flash_info_t * info, int sect, uchar offset)
184 if (info->portwidth == FLASH_CFI_8BIT) {
188 cp = flash_make_addr(info, 0, offset);
193 printf("flash_read_ushort offset=%04x ptr=%08x c1=%02x c0=%02x s=%04x\n",
194 offset, (unsigned int)cp, c1, c0, s);
198 } else if (info->portwidth == FLASH_CFI_16BIT) {
202 sp = (ushort*)flash_make_addr(info, 0, offset);
208 printf("flash_read_ushort offset=%04x ptr=%08x c1=%02x c0=%02x s=%04x\n",
209 offset, (unsigned int)sp, c1, c0, s);
218 /*-----------------------------------------------------------------------
219 * read a long word by picking the least significant byte of each maiximum
220 * port size word. Swap for ppc format.
222 ulong flash_read_long(flash_info_t * info, int sect, uchar offset)
224 if (info->portwidth == FLASH_CFI_8BIT) {
226 uchar c0, c1, c2, c3;
228 cp = flash_make_addr(info, 0, offset);
233 l = c3<<24 | c2<<16 | c1<<8 | c0;
235 printf("flash_read_long offset=%04x ptr=%08x c3=%02x c2=%02x c1=%02x c0=%02x l=%08x\n",
236 offset, (unsigned int)cp, c3, c2, c1, c0, l);
240 } else if (info->portwidth == FLASH_CFI_16BIT) {
242 uchar c0, c1, c2, c3;
244 sp = (ushort*)flash_make_addr(info, 0, offset);
249 l = c3<<24 | c2<<16 | c1<<8 | c0;
251 printf("flash_read_long offset=%04x ptr=%08x c3=%02x c2=%02x c1=%02x c0=%02x l=%08x\n",
252 offset, (unsigned int)sp, c3, c2, c1, c0, l);
261 /*-----------------------------------------------------------------------
263 unsigned long flash_init (void)
269 flash_info[0].flash_id = FLASH_UNKNOWN;
270 flash_info[0].portwidth = FLASH_CFI_16BIT;
271 flash_info[0].chipwidth = FLASH_CFI_16BIT;
272 size += flash_info[0].size = flash_get_size(CFG_PROGFLASH_BASE, 0);
273 if (flash_info[0].flash_id == FLASH_UNKNOWN) {
274 printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", 1,
275 flash_info[0].size, flash_info[0].size<<20);
278 flash_info[1].flash_id = FLASH_UNKNOWN;
279 flash_info[1].portwidth = FLASH_CFI_8BIT;
280 flash_info[1].chipwidth = FLASH_CFI_16BIT;
281 size += flash_info[1].size = flash_get_size(CFG_CONFFLASH_BASE, 1);
282 if (flash_info[1].flash_id == FLASH_UNKNOWN) {
283 printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", 2,
284 flash_info[1].size, flash_info[1].size<<20);
290 /*-----------------------------------------------------------------------
292 int flash_erase (flash_info_t *info, int s_first, int s_last)
298 if( info->flash_id != FLASH_MAN_CFI) {
299 printf ("Can't erase unknown flash type - aborted\n");
302 if ((s_first < 0) || (s_first > s_last)) {
303 printf ("- no sectors to erase\n");
308 for (sect=s_first; sect<=s_last; ++sect) {
309 if (info->protect[sect]) {
314 printf ("- Warning: %d protected sectors will not be erased!\n",
321 for (sect = s_first; sect<=s_last; sect++) {
322 if (info->protect[sect] == 0) { /* not protected */
323 flash_write_cmd(info, sect, 0, FLASH_CMD_CLEAR_STATUS);
324 flash_write_cmd(info, sect, 0, FLASH_CMD_BLOCK_ERASE);
325 flash_write_cmd(info, sect, 0, FLASH_CMD_ERASE_CONFIRM);
327 if(flash_full_status_check(info, sect, info->erase_blk_tout, "erase")) {
337 /*-----------------------------------------------------------------------
339 void flash_print_info (flash_info_t *info)
343 if (info->flash_id != FLASH_MAN_CFI) {
344 printf ("missing or unknown FLASH type\n");
348 printf("CFI conformant FLASH (x%d device in x%d mode)",
349 (info->chipwidth << 3 ), (info->portwidth << 3 ));
350 printf (" Size: %ld MB in %d Sectors\n",
351 info->size >> 20, info->sector_count);
352 printf(" Erase timeout %ld ms, write timeout %ld ms, buffer write timeout %ld ms, buffer size %d\n",
353 info->erase_blk_tout, info->write_tout, info->buffer_write_tout, info->buffer_size);
355 printf (" Sector Start Addresses:");
356 for (i=0; i<info->sector_count; ++i) {
361 info->protect[i] ? " (RO)" : " "
368 /*-----------------------------------------------------------------------
369 * Copy memory to flash, returns:
372 * 2 - Flash not erased
374 int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
382 /* get lower aligned address */
383 wp = (addr & ~(info->portwidth - 1));
385 /* handle unaligned start */
386 if((aln = addr - wp) != 0) {
389 for(i=0;i<aln; ++i, ++cp)
390 flash_add_byte(info, &cword, (*(uchar *)cp));
392 for(; (i< info->portwidth) && (cnt > 0) ; i++) {
393 flash_add_byte(info, &cword, *src++);
397 for(; (cnt == 0) && (i < info->portwidth); ++i, ++cp)
398 flash_add_byte(info, &cword, (*(uchar *)cp));
399 if((rc = flash_write_cfiword(info, wp, cword)) != 0)
404 #ifdef CFG_FLASH_USE_BUFFER_WRITE
405 while(cnt >= info->portwidth) {
406 i = info->buffer_size > cnt? cnt: info->buffer_size;
407 if((rc = flash_write_cfibuffer(info, wp, src,i)) != ERR_OK)
414 /* handle the aligned part */
415 while(cnt >= info->portwidth) {
417 for(i = 0; i < info->portwidth; i++) {
418 flash_add_byte(info, &cword, *src++);
420 if((rc = flash_write_cfiword(info, wp, cword)) != 0)
422 wp += info->portwidth;
423 cnt -= info->portwidth;
425 #endif /* CFG_FLASH_USE_BUFFER_WRITE */
431 * handle unaligned tail bytes
434 for (i=0, cp=wp; (i<info->portwidth) && (cnt>0); ++i, ++cp) {
435 flash_add_byte(info, &cword, *src++);
438 for (; i<info->portwidth; ++i, ++cp) {
439 flash_add_byte(info, & cword, (*(uchar *)cp));
442 return flash_write_cfiword(info, wp, cword);
445 /*-----------------------------------------------------------------------
447 int flash_real_protect(flash_info_t *info, long sector, int prot)
451 flash_write_cmd(info, sector, 0, FLASH_CMD_CLEAR_STATUS);
452 flash_write_cmd(info, sector, 0, FLASH_CMD_PROTECT);
454 flash_write_cmd(info, sector, 0, FLASH_CMD_PROTECT_SET);
456 flash_write_cmd(info, sector, 0, FLASH_CMD_PROTECT_CLEAR);
458 if((retcode = flash_full_status_check(info, sector, info->erase_blk_tout,
459 prot?"protect":"unprotect")) == 0) {
461 info->protect[sector] = prot;
462 /* Intel's unprotect unprotects all locking */
465 for(i = 0 ; i<info->sector_count; i++) {
467 flash_real_protect(info, i, 1);
474 /*-----------------------------------------------------------------------
475 * wait for XSR.7 to be set. Time out with an error if it does not.
476 * This routine does not set the flash to read-array mode.
478 static int flash_status_check(flash_info_t * info, ulong sector, ulong tout, char * prompt)
482 /* Wait for command completion */
483 start = get_timer (0);
484 while(!flash_isset(info, sector, 0, FLASH_STATUS_DONE)) {
485 if (get_timer(start) > info->erase_blk_tout) {
486 printf("Flash %s timeout at address %lx\n", prompt, info->start[sector]);
487 flash_write_cmd(info, sector, 0, FLASH_CMD_RESET);
493 /*-----------------------------------------------------------------------
494 * Wait for XSR.7 to be set, if it times out print an error, otherwise do a full status check.
495 * This routine sets the flash to read-array mode.
497 static int flash_full_status_check(flash_info_t * info, ulong sector, ulong tout, char * prompt)
500 retcode = flash_status_check(info, sector, tout, prompt);
501 if((retcode == ERR_OK) && !flash_isequal(info,sector, 0, FLASH_STATUS_DONE)) {
503 printf("Flash %s error at address %lx\n", prompt,info->start[sector]);
504 if(flash_isset(info, sector, 0, FLASH_STATUS_ECLBS | FLASH_STATUS_PSLBS)){
505 printf("Command Sequence Error.\n");
506 } else if(flash_isset(info, sector, 0, FLASH_STATUS_ECLBS)){
507 printf("Block Erase Error.\n");
508 retcode = ERR_NOT_ERASED;
509 } else if (flash_isset(info, sector, 0, FLASH_STATUS_PSLBS)) {
510 printf("Locking Error\n");
512 if(flash_isset(info, sector, 0, FLASH_STATUS_DPS)){
513 printf("Block locked.\n");
514 retcode = ERR_PROTECTED;
516 if(flash_isset(info, sector, 0, FLASH_STATUS_VPENS))
517 printf("Vpp Low Error.\n");
519 flash_write_cmd(info, sector, 0, FLASH_CMD_RESET);
522 /*-----------------------------------------------------------------------
524 static void flash_add_byte(flash_info_t *info, cfiword_t * cword, uchar c)
526 switch(info->portwidth) {
530 case FLASH_CFI_16BIT:
531 cword->w = (cword->w << 8) | c;
533 case FLASH_CFI_32BIT:
534 cword->l = (cword->l << 8) | c;
539 /*-----------------------------------------------------------------------
540 * make a proper sized command based on the port and chip widths
542 static void flash_make_cmd(flash_info_t * info, uchar cmd, void * cmdbuf)
545 uchar *cp = (uchar *)cmdbuf;
546 // for(i=0; i< info->portwidth; i++)
547 // *cp++ = ((i+1) % info->chipwidth) ? '\0':cmd;
548 if (info->portwidth == FLASH_CFI_8BIT && info->chipwidth == FLASH_CFI_16BIT) {
550 } else if (info->portwidth == FLASH_CFI_16BIT && info->chipwidth == FLASH_CFI_16BIT) {
557 * Write a proper sized command to the correct address
559 static void flash_write_cmd(flash_info_t * info, int sect, uchar offset, uchar cmd)
562 volatile cfiptr_t addr;
564 addr.cp = flash_make_addr(info, sect, offset);
565 flash_make_cmd(info, cmd, &cword);
566 switch(info->portwidth) {
570 case FLASH_CFI_16BIT:
573 case FLASH_CFI_32BIT:
579 /*-----------------------------------------------------------------------
581 static int flash_isequal(flash_info_t * info, int sect, uchar offset, uchar cmd)
586 cptr.cp = flash_make_addr(info, sect, offset);
587 flash_make_cmd(info, cmd, &cword);
588 switch(info->portwidth) {
590 retval = (cptr.cp[0] == cword.c);
592 case FLASH_CFI_16BIT:
593 retval = (cptr.wp[0] == cword.w);
595 case FLASH_CFI_32BIT:
596 retval = (cptr.lp[0] == cword.l);
604 /*-----------------------------------------------------------------------
606 static int flash_isset(flash_info_t * info, int sect, uchar offset, uchar cmd)
611 cptr.cp = flash_make_addr(info, sect, offset);
612 flash_make_cmd(info, cmd, &cword);
613 switch(info->portwidth) {
615 retval = ((cptr.cp[0] & cword.c) == cword.c);
617 case FLASH_CFI_16BIT:
618 retval = ((cptr.wp[0] & cword.w) == cword.w);
620 case FLASH_CFI_32BIT:
621 retval = ((cptr.lp[0] & cword.l) == cword.l);
630 /*-----------------------------------------------------------------------
631 * detect if flash is compatible with the Common Flash Interface (CFI)
632 * http://www.jedec.org/download/search/jesd68.pdf
635 static int flash_detect_cfi(flash_info_t * info)
639 for(info->portwidth=FLASH_CFI_8BIT; info->portwidth <= FLASH_CFI_32BIT;
640 info->portwidth <<= 1) {
641 for(info->chipwidth =FLASH_CFI_BY8;
642 info->chipwidth <= info->portwidth;
643 info->chipwidth <<= 1) {
644 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
645 flash_write_cmd(info, 0, FLASH_OFFSET_CFI, FLASH_CMD_CFI);
646 if(flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP,'Q') &&
647 flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R') &&
648 flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y'))
653 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
654 flash_write_cmd(info, 0, FLASH_OFFSET_CFI, FLASH_CMD_CFI);
655 if(flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP,'Q') &&
656 flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R') &&
657 flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) {
664 * The following code cannot be run from FLASH!
667 static ulong flash_get_size (ulong base, int banknum)
669 flash_info_t * info = &flash_info[banknum];
672 unsigned long sector;
675 uchar num_erase_regions;
676 int erase_region_size;
677 int erase_region_count;
679 info->start[0] = base;
681 if(flash_detect_cfi(info)){
683 printf("portwidth=%d chipwidth=%d\n", info->portwidth, info->chipwidth); /* test-only */
685 size_ratio = 1; // info->portwidth / info->chipwidth;
686 num_erase_regions = flash_read_uchar(info, FLASH_OFFSET_NUM_ERASE_REGIONS);
688 printf("found %d erase regions\n", num_erase_regions);
692 for(i = 0 ; i < num_erase_regions; i++) {
693 if(i > NUM_ERASE_REGIONS) {
694 printf("%d erase regions found, only %d used\n",
695 num_erase_regions, NUM_ERASE_REGIONS);
698 tmp = flash_read_long(info, 0, FLASH_OFFSET_ERASE_REGIONS);
699 erase_region_count = (tmp & 0xffff) +1;
701 erase_region_size = (tmp & 0xffff)? ((tmp & 0xffff) * 256): 128;
702 for(j = 0; j< erase_region_count; j++) {
703 info->start[sect_cnt] = sector;
704 sector += (erase_region_size * size_ratio);
705 info->protect[sect_cnt] = flash_isset(info, sect_cnt, FLASH_OFFSET_PROTECT, FLASH_STATUS_PROTECT);
710 info->sector_count = sect_cnt;
711 /* multiply the size by the number of chips */
712 info->size = (1 << flash_read_uchar(info, FLASH_OFFSET_SIZE)) * size_ratio;
713 info->buffer_size = (1 << flash_read_ushort(info, 0, FLASH_OFFSET_BUFFER_SIZE));
714 tmp = 1 << flash_read_uchar(info, FLASH_OFFSET_ETOUT);
715 info->erase_blk_tout = (tmp * (1 << flash_read_uchar(info, FLASH_OFFSET_EMAX_TOUT)));
716 tmp = 1 << flash_read_uchar(info, FLASH_OFFSET_WBTOUT);
717 info->buffer_write_tout = (tmp * (1 << flash_read_uchar(info, FLASH_OFFSET_WBMAX_TOUT)));
718 tmp = 1 << flash_read_uchar(info, FLASH_OFFSET_WTOUT);
719 info->write_tout = (tmp * (1 << flash_read_uchar(info, FLASH_OFFSET_WMAX_TOUT)))/ 1000;
720 info->flash_id = FLASH_MAN_CFI;
723 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
728 /*-----------------------------------------------------------------------
730 static int flash_write_cfiword (flash_info_t *info, ulong dest, cfiword_t cword)
737 ctladdr.cp = flash_make_addr(info, 0, 0);
738 cptr.cp = (uchar *)dest;
741 /* Check if Flash is (sufficiently) erased */
742 switch(info->portwidth) {
744 flag = ((cptr.cp[0] & cword.c) == cword.c);
746 case FLASH_CFI_16BIT:
747 flag = ((cptr.wp[0] & cword.w) == cword.w);
749 case FLASH_CFI_32BIT:
750 flag = ((cptr.lp[0] & cword.l) == cword.l);
758 /* Disable interrupts which might cause a timeout here */
759 flag = disable_interrupts();
761 flash_write_cmd(info, 0, 0, FLASH_CMD_CLEAR_STATUS);
762 flash_write_cmd(info, 0, 0, FLASH_CMD_WRITE);
764 switch(info->portwidth) {
766 cptr.cp[0] = cword.c;
768 case FLASH_CFI_16BIT:
769 cptr.wp[0] = cword.w;
771 case FLASH_CFI_32BIT:
772 cptr.lp[0] = cword.l;
776 /* re-enable interrupts if necessary */
780 return flash_full_status_check(info, 0, info->write_tout, "write");
783 #ifdef CFG_FLASH_USE_BUFFER_WRITE
785 /* loop through the sectors from the highest address
786 * when the passed address is greater or equal to the sector address
789 static int find_sector(flash_info_t *info, ulong addr)
792 for(sector = info->sector_count - 1; sector >= 0; sector--) {
793 if(addr >= info->start[sector])
799 static int flash_write_cfibuffer(flash_info_t * info, ulong dest, uchar * cp, int len)
805 volatile cfiptr_t src;
806 volatile cfiptr_t dst;
809 dst.cp = (uchar *)dest;
810 sector = find_sector(info, dest);
811 flash_write_cmd(info, sector, 0, FLASH_CMD_CLEAR_STATUS);
812 flash_write_cmd(info, sector, 0, FLASH_CMD_WRITE_TO_BUFFER);
813 if((retcode = flash_status_check(info, sector, info->buffer_write_tout,
814 "write to buffer")) == ERR_OK) {
815 switch(info->portwidth) {
819 case FLASH_CFI_16BIT:
822 case FLASH_CFI_32BIT:
829 flash_write_cmd(info, sector, 0, (uchar)cnt-1);
831 switch(info->portwidth) {
833 *dst.cp++ = *src.cp++;
835 case FLASH_CFI_16BIT:
836 *dst.wp++ = *src.wp++;
838 case FLASH_CFI_32BIT:
839 *dst.lp++ = *src.lp++;
846 flash_write_cmd(info, sector, 0, FLASH_CMD_WRITE_BUFFER_CONFIRM);
847 retcode = flash_full_status_check(info, sector, info->buffer_write_tout,
850 flash_write_cmd(info, sector, 0, FLASH_CMD_CLEAR_STATUS);
853 #endif /* CFG_USE_FLASH_BUFFER_WRITE */