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()
496 			bbt_mark_entry(this, i, BBT_BLOCK_FACTORY_BAD);  in create_bbt()
502 		from += (1 << this->bbt_erase_shift);  in create_bbt()
524 	struct nand_chip *this = mtd_to_nand(mtd);  in search_bbt()  local
529 	int blocktopage = this->bbt_erase_shift - this->page_shift;  in search_bbt()
533 		startblock = (mtd->size >> this->bbt_erase_shift) - 1;  in search_bbt()
542 		chips = this->numchips;  in search_bbt()
543 		bbtblocks = this->chipsize >> this->bbt_erase_shift;  in search_bbt()
547 		bbtblocks = mtd->size >> this->bbt_erase_shift;  in search_bbt()
558 			loff_t offs = (loff_t)actblock << this->bbt_erase_shift;  in search_bbt()
571 		startblock += this->chipsize >> this->bbt_erase_shift;  in search_bbt()
619 	struct nand_chip *this = mtd_to_nand(mtd);  in write_bbt()  local
639 		numblocks = (int)(this->chipsize >> this->bbt_erase_shift);  in write_bbt()
642 			nrchips = this->numchips;  in write_bbt()
648 		numblocks = (int)(mtd->size >> this->bbt_erase_shift);  in write_bbt()
679 			switch (bbt_get_entry(this, block)) {  in write_bbt()
685 				(this->bbt_erase_shift - this->page_shift);  in write_bbt()
713 		to = ((loff_t)page) << this->page_shift;  in write_bbt()
718 			to &= ~(((loff_t)1 << this->bbt_erase_shift) - 1);  in write_bbt()
719 			len = 1 << this->bbt_erase_shift;  in write_bbt()
729 			ops.ooblen = (len >> this->page_shift) * mtd->oobsize;  in write_bbt()
736 			pageoffs = page - (int)(to >> this->page_shift);  in write_bbt()
737 			offs = pageoffs << this->page_shift;  in write_bbt()
764 			       (len >> this->page_shift)* mtd->oobsize);  in write_bbt()
778 			dat = bbt_get_entry(this, chip * numblocks + i);  in write_bbt()
786 		einfo.len = 1 << this->bbt_erase_shift;  in write_bbt()
820 	struct nand_chip *this = mtd_to_nand(mtd);  in nand_memory_bbt()  local
822 	return create_bbt(mtd, this->buffers->databuf, bd, -1);  in nand_memory_bbt()
839 	struct nand_chip *this = mtd_to_nand(mtd);  in check_create()  local
840 	struct nand_bbt_descr *td = this->bbt_td;  in check_create()
841 	struct nand_bbt_descr *md = this->bbt_md;  in check_create()
846 		chips = this->numchips;  in check_create()
895 			if (!(this->bbt_options & NAND_BBT_CREATE_EMPTY))  in check_create()
963 	struct nand_chip *this = mtd_to_nand(mtd);  in mark_bbt_region()  local
969 		chips = this->numchips;  in mark_bbt_region()
970 		nrblocks = (int)(this->chipsize >> this->bbt_erase_shift);  in mark_bbt_region()
973 		nrblocks = (int)(mtd->size >> this->bbt_erase_shift);  in mark_bbt_region()
981 			block = td->pages[i] >> (this->bbt_erase_shift - this->page_shift);  in mark_bbt_region()
982 			oldval = bbt_get_entry(this, block);  in mark_bbt_region()
983 			bbt_mark_entry(this, block, BBT_BLOCK_RESERVED);  in mark_bbt_region()
987 						this->bbt_erase_shift);  in mark_bbt_region()
996 			oldval = bbt_get_entry(this, block);  in mark_bbt_region()
997 			bbt_mark_entry(this, block, BBT_BLOCK_RESERVED);  in mark_bbt_region()
1009 					this->bbt_erase_shift);  in mark_bbt_region()
1023 	struct nand_chip *this = mtd_to_nand(mtd);  in verify_bbt_descr()  local
1034 	BUG_ON((this->bbt_options & NAND_BBT_NO_OOB) &&  in verify_bbt_descr()
1035 			!(this->bbt_options & NAND_BBT_USE_FLASH));  in verify_bbt_descr()
1042 		BUG_ON(!(this->bbt_options & NAND_BBT_USE_FLASH));  in verify_bbt_descr()
1043 		BUG_ON(!(this->bbt_options & NAND_BBT_NO_OOB));  in verify_bbt_descr()
1051 		table_size = this->chipsize >> this->bbt_erase_shift;  in verify_bbt_descr()
1053 		table_size = mtd->size >> this->bbt_erase_shift;  in verify_bbt_descr()
1058 	BUG_ON(table_size > (1 << this->bbt_erase_shift));  in verify_bbt_descr()
1075 	struct nand_chip *this = mtd_to_nand(mtd);  in nand_scan_bbt()  local
1078 	struct nand_bbt_descr *td = this->bbt_td;  in nand_scan_bbt()
1079 	struct nand_bbt_descr *md = this->bbt_md;  in nand_scan_bbt()
1081 	len = (mtd->size >> (this->bbt_erase_shift + 2)) ? : 1;  in nand_scan_bbt()
1086 	this->bbt = kzalloc(len, GFP_KERNEL);  in nand_scan_bbt()
1087 	if (!this->bbt)  in nand_scan_bbt()
1105 	len = (1 << this->bbt_erase_shift);  in nand_scan_bbt()
1106 	len += (len >> this->page_shift) * mtd->oobsize;  in nand_scan_bbt()
1134 	kfree(this->bbt);  in nand_scan_bbt()
1135 	this->bbt = NULL;  in nand_scan_bbt()
1148 	struct nand_chip *this = mtd_to_nand(mtd);  in nand_update_bbt()  local
1152 	struct nand_bbt_descr *td = this->bbt_td;  in nand_update_bbt()
1153 	struct nand_bbt_descr *md = this->bbt_md;  in nand_update_bbt()
1155 	if (!this->bbt || !td)  in nand_update_bbt()
1159 	len = (1 << this->bbt_erase_shift);  in nand_update_bbt()
1160 	len += (len >> this->page_shift) * mtd->oobsize;  in nand_update_bbt()
1167 		chip = (int)(offs >> this->chip_shift);  in nand_update_bbt()
1254 static int nand_create_badblock_pattern(struct nand_chip *this)  in nand_create_badblock_pattern()  argument
1257 	if (this->badblock_pattern) {  in nand_create_badblock_pattern()
1264 	bd->options = this->bbt_options & BADBLOCK_SCAN_MASK;  in nand_create_badblock_pattern()
1265 	bd->offs = this->badblockpos;  in nand_create_badblock_pattern()
1266 	bd->len = (this->options & NAND_BUSWIDTH_16) ? 2 : 1;  in nand_create_badblock_pattern()
1269 	this->badblock_pattern = bd;  in nand_create_badblock_pattern()
1282 	struct nand_chip *this = mtd_to_nand(mtd);  in nand_default_bbt()  local
1286 	if (this->bbt_options & NAND_BBT_USE_FLASH) {  in nand_default_bbt()
1288 		if (!this->bbt_td) {  in nand_default_bbt()
1289 			if (this->bbt_options & NAND_BBT_NO_OOB) {  in nand_default_bbt()
1290 				this->bbt_td = &bbt_main_no_oob_descr;  in nand_default_bbt()
1291 				this->bbt_md = &bbt_mirror_no_oob_descr;  in nand_default_bbt()
1293 				this->bbt_td = &bbt_main_descr;  in nand_default_bbt()
1294 				this->bbt_md = &bbt_mirror_descr;  in nand_default_bbt()
1298 		this->bbt_td = NULL;  in nand_default_bbt()
1299 		this->bbt_md = NULL;  in nand_default_bbt()
1302 	if (!this->badblock_pattern) {  in nand_default_bbt()
1303 		ret = nand_create_badblock_pattern(this);  in nand_default_bbt()
1308 	return nand_scan_bbt(mtd, this->badblock_pattern);  in nand_default_bbt()
1318 	struct nand_chip *this = mtd_to_nand(mtd);  in nand_isreserved_bbt()  local
1321 	block = (int)(offs >> this->bbt_erase_shift);  in nand_isreserved_bbt()
1322 	return bbt_get_entry(this, block) == BBT_BLOCK_RESERVED;  in nand_isreserved_bbt()
1333 	struct nand_chip *this = mtd_to_nand(mtd);  in nand_isbad_bbt()  local
1336 	block = (int)(offs >> this->bbt_erase_shift);  in nand_isbad_bbt()
1337 	res = bbt_get_entry(this, block);  in nand_isbad_bbt()
1360 	struct nand_chip *this = mtd_to_nand(mtd);  in nand_markbad_bbt()  local
1363 	block = (int)(offs >> this->bbt_erase_shift);  in nand_markbad_bbt()
1366 	bbt_mark_entry(this, block, BBT_BLOCK_WORN);  in nand_markbad_bbt()
1369 	if (this->bbt_options & NAND_BBT_USE_FLASH)  in nand_markbad_bbt()