23 static int nanddev_read_bbt(struct nand_device *nand, u32 block, bool update)  in nanddev_read_bbt()  argument
40 	if (block >= nblocks)  in nanddev_read_bbt()
67 	ret = mtd_read_oob(mtd, block * mtd->erasesize, &ops);  in nanddev_read_bbt()
79 	BBT_DBG("read_bbt from blk=%d tag=%d ver=%d\n", block, update, version);  in nanddev_read_bbt()
92 static int nanddev_write_bbt(struct nand_device *nand, u32 block)  in nanddev_write_bbt()  argument
106 	BBT_DBG("write_bbt to blk=%d ver=%d\n", block, nand->bbt.version);  in nanddev_write_bbt()
110 	if (block >= nblocks)  in nanddev_write_bbt()
134 	nanddev_offs_to_pos(nand, block * mtd->erasesize, &pos);  in nanddev_write_bbt()
146 	ret = mtd_write_oob(mtd, block * mtd->erasesize, &ops);  in nanddev_write_bbt()
160 	u32 start_block, block;  in nanddev_bbt_format()  local
164 	for (block = 0; block < nblocks; block++) {  in nanddev_bbt_format()
165 		nanddev_offs_to_pos(nand, block * mtd->erasesize, &pos);  in nanddev_bbt_format()
167 			nanddev_bbt_set_block_status(nand, block,  in nanddev_bbt_format()
171 	for (block = 0; block < NANDDEV_BBT_SCAN_MAXBLOCKS; block++) {  in nanddev_bbt_format()
172 		if (nanddev_bbt_get_block_status(nand, start_block + block) ==  in nanddev_bbt_format()
174 			nanddev_bbt_set_block_status(nand, start_block + block,  in nanddev_bbt_format()
192 	u32 start_block, block;  in nanddev_scan_bbt_in_flash()  local
197 	for (block = 0; block < NANDDEV_BBT_SCAN_MAXBLOCKS; block++)  in nanddev_scan_bbt_in_flash()
198 		nanddev_read_bbt(nand, start_block + block, true);  in nanddev_scan_bbt_in_flash()
228 		int start_block, block;  in nanddev_bbt_in_flash_update()  local
233 		for (block = 0; block < NANDDEV_BBT_SCAN_MAXBLOCKS; block++) {  in nanddev_bbt_in_flash_update()
234 			ret = nanddev_bbt_get_block_status(nand, start_block + block);  in nanddev_bbt_in_flash_update()
236 				bbt_version[block] = 0xFFFFFFFF;  in nanddev_bbt_in_flash_update()
239 			ret = nanddev_read_bbt(nand, start_block + block,  in nanddev_bbt_in_flash_update()
242 				bbt_version[block] = 0xFFFFFFFF;  in nanddev_bbt_in_flash_update()
244 				bbt_version[block] = 0;  in nanddev_bbt_in_flash_update()
246 				bbt_version[block] = ret;  in nanddev_bbt_in_flash_update()
251 		for (block = 0; block < NANDDEV_BBT_SCAN_MAXBLOCKS; block++) {  in nanddev_bbt_in_flash_update()
252 			if (bbt_version[block] < min_version) {  in nanddev_bbt_in_flash_update()
253 				min_version = bbt_version[block];  in nanddev_bbt_in_flash_update()
254 				block_des = start_block + block;  in nanddev_bbt_in_flash_update()