173 	struct nand_chip *this = mtd_to_nand(mtd);  in read_bbt()  local
183 	from = ((loff_t)page) << this->page_shift;  in read_bbt()
186 		len = min(totlen, (size_t)(1 << this->bbt_erase_shift));  in read_bbt()
222 						 this->bbt_erase_shift);  in read_bbt()
223 					bbt_mark_entry(this, offs + act,  in read_bbt()
234 					 this->bbt_erase_shift);  in read_bbt()
237 					bbt_mark_entry(this, offs + act,  in read_bbt()
240 					bbt_mark_entry(this, offs + act,  in read_bbt()
264 	struct nand_chip *this = mtd_to_nand(mtd);  in read_abs_bbt()  local
269 		for (i = 0; i < this->numchips; i++) {  in read_abs_bbt()
272 					this->chipsize >> this->bbt_erase_shift,  in read_abs_bbt()
276 			offs += this->chipsize >> this->bbt_erase_shift;  in read_abs_bbt()
280 				mtd->size >> this->bbt_erase_shift, td, 0);  in read_abs_bbt()
389 	struct nand_chip *this = mtd_to_nand(mtd);  in read_abs_bbts()  local
393 		scan_read(mtd, buf, (loff_t)td->pages[0] << this->page_shift,  in read_abs_bbts()
402 		scan_read(mtd, buf, (loff_t)md->pages[0] << this->page_shift,  in read_abs_bbts()
455 	struct nand_chip *this = mtd_to_nand(mtd);  in create_bbt()  local
468 		numblocks = mtd->size >> this->bbt_erase_shift;  in create_bbt()
472 		if (chip >= this->numchips) {  in create_bbt()
474 			       chip + 1, this->numchips);  in create_bbt()
477 		numblocks = this->chipsize >> this->bbt_erase_shift;  in create_bbt()
480 		from = (loff_t)startblock << this->bbt_erase_shift;  in create_bbt()
483 	if (this->bbt_options & NAND_BBT_SCANLASTPAGE)  in create_bbt()
490 		if (this->block_bad)  in create_bbt()
491 			ret = this->block_bad(mtd, from);  in create_bbt()
498 			bbt_mark_entry(this, i, BBT_BLOCK_FACTORY_BAD);  in create_bbt()
504 		from += (1 << this->bbt_erase_shift);  in create_bbt()
526 	struct nand_chip *this = mtd_to_nand(mtd);  in search_bbt()  local
531 	int blocktopage = this->bbt_erase_shift - this->page_shift;  in search_bbt()
535 		startblock = (mtd->size >> this->bbt_erase_shift) - 1;  in search_bbt()
544 		chips = this->numchips;  in search_bbt()
545 		bbtblocks = this->chipsize >> this->bbt_erase_shift;  in search_bbt()
549 		bbtblocks = mtd->size >> this->bbt_erase_shift;  in search_bbt()
560 			loff_t offs = (loff_t)actblock << this->bbt_erase_shift;  in search_bbt()
573 		startblock += this->chipsize >> this->bbt_erase_shift;  in search_bbt()
621 	struct nand_chip *this = mtd_to_nand(mtd);  in write_bbt()  local
641 		numblocks = (int)(this->chipsize >> this->bbt_erase_shift);  in write_bbt()
644 			nrchips = this->numchips;  in write_bbt()
650 		numblocks = (int)(mtd->size >> this->bbt_erase_shift);  in write_bbt()
681 			switch (bbt_get_entry(this, block)) {  in write_bbt()
687 				(this->bbt_erase_shift - this->page_shift);  in write_bbt()
715 		to = ((loff_t)page) << this->page_shift;  in write_bbt()
720 			to &= ~(((loff_t)1 << this->bbt_erase_shift) - 1);  in write_bbt()
721 			len = 1 << this->bbt_erase_shift;  in write_bbt()
731 			ops.ooblen = (len >> this->page_shift) * mtd->oobsize;  in write_bbt()
738 			pageoffs = page - (int)(to >> this->page_shift);  in write_bbt()
739 			offs = pageoffs << this->page_shift;  in write_bbt()
766 			       (len >> this->page_shift)* mtd->oobsize);  in write_bbt()
780 			dat = bbt_get_entry(this, chip * numblocks + i);  in write_bbt()
788 		einfo.len = 1 << this->bbt_erase_shift;  in write_bbt()
822 	struct nand_chip *this = mtd_to_nand(mtd);  in nand_memory_bbt()  local
824 	return create_bbt(mtd, this->buffers->databuf, bd, -1);  in nand_memory_bbt()
841 	struct nand_chip *this = mtd_to_nand(mtd);  in check_create()  local
842 	struct nand_bbt_descr *td = this->bbt_td;  in check_create()
843 	struct nand_bbt_descr *md = this->bbt_md;  in check_create()
848 		chips = this->numchips;  in check_create()
897 			if (!(this->bbt_options & NAND_BBT_CREATE_EMPTY))  in check_create()
965 	struct nand_chip *this = mtd_to_nand(mtd);  in mark_bbt_region()  local
971 		chips = this->numchips;  in mark_bbt_region()
972 		nrblocks = (int)(this->chipsize >> this->bbt_erase_shift);  in mark_bbt_region()
975 		nrblocks = (int)(mtd->size >> this->bbt_erase_shift);  in mark_bbt_region()
983 			block = td->pages[i] >> (this->bbt_erase_shift - this->page_shift);  in mark_bbt_region()
984 			oldval = bbt_get_entry(this, block);  in mark_bbt_region()
985 			bbt_mark_entry(this, block, BBT_BLOCK_RESERVED);  in mark_bbt_region()
989 						this->bbt_erase_shift);  in mark_bbt_region()
998 			oldval = bbt_get_entry(this, block);  in mark_bbt_region()
999 			bbt_mark_entry(this, block, BBT_BLOCK_RESERVED);  in mark_bbt_region()
1011 					this->bbt_erase_shift);  in mark_bbt_region()
1025 	struct nand_chip *this = mtd_to_nand(mtd);  in verify_bbt_descr()  local
1036 	BUG_ON((this->bbt_options & NAND_BBT_NO_OOB) &&  in verify_bbt_descr()
1037 			!(this->bbt_options & NAND_BBT_USE_FLASH));  in verify_bbt_descr()
1044 		BUG_ON(!(this->bbt_options & NAND_BBT_USE_FLASH));  in verify_bbt_descr()
1045 		BUG_ON(!(this->bbt_options & NAND_BBT_NO_OOB));  in verify_bbt_descr()
1053 		table_size = this->chipsize >> this->bbt_erase_shift;  in verify_bbt_descr()
1055 		table_size = mtd->size >> this->bbt_erase_shift;  in verify_bbt_descr()
1060 	BUG_ON(table_size > (1 << this->bbt_erase_shift));  in verify_bbt_descr()
1077 	struct nand_chip *this = mtd_to_nand(mtd);  in nand_scan_bbt()  local
1080 	struct nand_bbt_descr *td = this->bbt_td;  in nand_scan_bbt()
1081 	struct nand_bbt_descr *md = this->bbt_md;  in nand_scan_bbt()
1083 	len = (mtd->size >> (this->bbt_erase_shift + 2)) ? : 1;  in nand_scan_bbt()
1088 	this->bbt = kzalloc(len, GFP_KERNEL);  in nand_scan_bbt()
1089 	if (!this->bbt)  in nand_scan_bbt()
1107 	len = (1 << this->bbt_erase_shift);  in nand_scan_bbt()
1108 	len += (len >> this->page_shift) * mtd->oobsize;  in nand_scan_bbt()
1136 	kfree(this->bbt);  in nand_scan_bbt()
1137 	this->bbt = NULL;  in nand_scan_bbt()
1150 	struct nand_chip *this = mtd_to_nand(mtd);  in nand_update_bbt()  local
1154 	struct nand_bbt_descr *td = this->bbt_td;  in nand_update_bbt()
1155 	struct nand_bbt_descr *md = this->bbt_md;  in nand_update_bbt()
1157 	if (!this->bbt || !td)  in nand_update_bbt()
1161 	len = (1 << this->bbt_erase_shift);  in nand_update_bbt()
1162 	len += (len >> this->page_shift) * mtd->oobsize;  in nand_update_bbt()
1169 		chip = (int)(offs >> this->chip_shift);  in nand_update_bbt()
1256 static int nand_create_badblock_pattern(struct nand_chip *this)  in nand_create_badblock_pattern()  argument
1259 	if (this->badblock_pattern) {  in nand_create_badblock_pattern()
1266 	bd->options = this->bbt_options & BADBLOCK_SCAN_MASK;  in nand_create_badblock_pattern()
1267 	bd->offs = this->badblockpos;  in nand_create_badblock_pattern()
1268 	bd->len = (this->options & NAND_BUSWIDTH_16) ? 2 : 1;  in nand_create_badblock_pattern()
1271 	this->badblock_pattern = bd;  in nand_create_badblock_pattern()
1284 	struct nand_chip *this = mtd_to_nand(mtd);  in nand_default_bbt()  local
1288 	if (this->bbt_options & NAND_BBT_USE_FLASH) {  in nand_default_bbt()
1290 		if (!this->bbt_td) {  in nand_default_bbt()
1291 			if (this->bbt_options & NAND_BBT_NO_OOB) {  in nand_default_bbt()
1292 				this->bbt_td = &bbt_main_no_oob_descr;  in nand_default_bbt()
1293 				this->bbt_md = &bbt_mirror_no_oob_descr;  in nand_default_bbt()
1295 				this->bbt_td = &bbt_main_descr;  in nand_default_bbt()
1296 				this->bbt_md = &bbt_mirror_descr;  in nand_default_bbt()
1300 		this->bbt_td = NULL;  in nand_default_bbt()
1301 		this->bbt_md = NULL;  in nand_default_bbt()
1304 	if (!this->badblock_pattern) {  in nand_default_bbt()
1305 		ret = nand_create_badblock_pattern(this);  in nand_default_bbt()
1310 	return nand_scan_bbt(mtd, this->badblock_pattern);  in nand_default_bbt()
1320 	struct nand_chip *this = mtd_to_nand(mtd);  in nand_isreserved_bbt()  local
1323 	block = (int)(offs >> this->bbt_erase_shift);  in nand_isreserved_bbt()
1324 	return bbt_get_entry(this, block) == BBT_BLOCK_RESERVED;  in nand_isreserved_bbt()
1335 	struct nand_chip *this = mtd_to_nand(mtd);  in nand_isbad_bbt()  local
1338 	block = (int)(offs >> this->bbt_erase_shift);  in nand_isbad_bbt()
1339 	res = bbt_get_entry(this, block);  in nand_isbad_bbt()
1362 	struct nand_chip *this = mtd_to_nand(mtd);  in nand_markbad_bbt()  local
1365 	block = (int)(offs >> this->bbt_erase_shift);  in nand_markbad_bbt()
1368 	bbt_mark_entry(this, block, BBT_BLOCK_WORN);  in nand_markbad_bbt()
1371 	if (this->bbt_options & NAND_BBT_USE_FLASH)  in nand_markbad_bbt()