88 static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd,
90 static void doc200x_select_chip(struct mtd_info *mtd, int chip);
297 static void doc2000_write_byte(struct mtd_info *mtd, u_char datum)  in doc2000_write_byte()  argument
299 	struct nand_chip *this = mtd->priv;  in doc2000_write_byte()
309 static u_char doc2000_read_byte(struct mtd_info *mtd)  in doc2000_read_byte()  argument
311 	struct nand_chip *this = mtd->priv;  in doc2000_read_byte()
324 static void doc2000_writebuf(struct mtd_info *mtd, const u_char *buf, int len)  in doc2000_writebuf()  argument
326 	struct nand_chip *this = mtd->priv;  in doc2000_writebuf()
341 static void doc2000_readbuf(struct mtd_info *mtd, u_char *buf, int len)  in doc2000_readbuf()  argument
343 	struct nand_chip *this = mtd->priv;  in doc2000_readbuf()
356 static void doc2000_readbuf_dword(struct mtd_info *mtd, u_char *buf, int len)  in doc2000_readbuf_dword()  argument
358 	struct nand_chip *this = mtd->priv;  in doc2000_readbuf_dword()
377 static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr)  in doc200x_ident_chip()  argument
379 	struct nand_chip *this = mtd->priv;  in doc200x_ident_chip()
383 	doc200x_select_chip(mtd, nr);  in doc200x_ident_chip()
384 	doc200x_hwcontrol(mtd, NAND_CMD_READID,  in doc200x_ident_chip()
386 	doc200x_hwcontrol(mtd, 0, NAND_CTRL_ALE | NAND_CTRL_CHANGE);  in doc200x_ident_chip()
387 	doc200x_hwcontrol(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);  in doc200x_ident_chip()
394 	ret = this->read_byte(mtd) << 8;  in doc200x_ident_chip()
395 	ret |= this->read_byte(mtd);  in doc200x_ident_chip()
405 		doc200x_hwcontrol(mtd, NAND_CMD_READID,  in doc200x_ident_chip()
407 		doc200x_hwcontrol(mtd, 0, NAND_CTRL_ALE | NAND_CTRL_CHANGE);  in doc200x_ident_chip()
408 		doc200x_hwcontrol(mtd, NAND_CMD_NONE,  in doc200x_ident_chip()
423 static void __init doc2000_count_chips(struct mtd_info *mtd)  in doc2000_count_chips()  argument
425 	struct nand_chip *this = mtd->priv;  in doc2000_count_chips()
434 	mfrid = doc200x_ident_chip(mtd, 0);  in doc2000_count_chips()
438 		if (doc200x_ident_chip(mtd, i) != mfrid)  in doc2000_count_chips()
445 static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this)  in doc200x_wait()  argument
452 	this->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);  in doc200x_wait()
454 	status = (int)this->read_byte(mtd);  in doc200x_wait()
459 static void doc2001_write_byte(struct mtd_info *mtd, u_char datum)  in doc2001_write_byte()  argument
461 	struct nand_chip *this = mtd->priv;  in doc2001_write_byte()
470 static u_char doc2001_read_byte(struct mtd_info *mtd)  in doc2001_read_byte()  argument
472 	struct nand_chip *this = mtd->priv;  in doc2001_read_byte()
484 static void doc2001_writebuf(struct mtd_info *mtd, const u_char *buf, int len)  in doc2001_writebuf()  argument
486 	struct nand_chip *this = mtd->priv;  in doc2001_writebuf()
497 static void doc2001_readbuf(struct mtd_info *mtd, u_char *buf, int len)  in doc2001_readbuf()  argument
499 	struct nand_chip *this = mtd->priv;  in doc2001_readbuf()
514 static u_char doc2001plus_read_byte(struct mtd_info *mtd)  in doc2001plus_read_byte()  argument
516 	struct nand_chip *this = mtd->priv;  in doc2001plus_read_byte()
529 static void doc2001plus_writebuf(struct mtd_info *mtd, const u_char *buf, int len)  in doc2001plus_writebuf()  argument
531 	struct nand_chip *this = mtd->priv;  in doc2001plus_writebuf()
547 static void doc2001plus_readbuf(struct mtd_info *mtd, u_char *buf, int len)  in doc2001plus_readbuf()  argument
549 	struct nand_chip *this = mtd->priv;  in doc2001plus_readbuf()
578 static void doc2001plus_select_chip(struct mtd_info *mtd, int chip)  in doc2001plus_select_chip()  argument
580 	struct nand_chip *this = mtd->priv;  in doc2001plus_select_chip()
599 	this->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);  in doc2001plus_select_chip()
605 static void doc200x_select_chip(struct mtd_info *mtd, int chip)  in doc200x_select_chip()  argument
607 	struct nand_chip *this = mtd->priv;  in doc200x_select_chip()
622 	doc200x_hwcontrol(mtd, NAND_CMD_NONE, 0 | NAND_CTRL_CHANGE);  in doc200x_select_chip()
627 	doc200x_hwcontrol(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);  in doc200x_select_chip()
635 static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd,  in doc200x_hwcontrol()  argument
638 	struct nand_chip *this = mtd->priv;  in doc200x_hwcontrol()
653 			doc2000_write_byte(mtd, cmd);  in doc200x_hwcontrol()
655 			doc2001_write_byte(mtd, cmd);  in doc200x_hwcontrol()
659 static void doc2001plus_command(struct mtd_info *mtd, unsigned command, int column, int page_addr)  in doc2001plus_command()  argument
661 	struct nand_chip *this = mtd->priv;  in doc2001plus_command()
680 		if (column >= mtd->writesize) {  in doc2001plus_command()
682 			column -= mtd->writesize;  in doc2001plus_command()
743 		while (!(this->read_byte(mtd) & 0x40)) ;  in doc2001plus_command()
762 	while (!this->dev_ready(mtd)) ;  in doc2001plus_command()
765 static int doc200x_dev_ready(struct mtd_info *mtd)  in doc200x_dev_ready()  argument
767 	struct nand_chip *this = mtd->priv;  in doc200x_dev_ready()
798 static int doc200x_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)  in doc200x_block_bad()  argument
805 static void doc200x_enable_hwecc(struct mtd_info *mtd, int mode)  in doc200x_enable_hwecc()  argument
807 	struct nand_chip *this = mtd->priv;  in doc200x_enable_hwecc()
824 static void doc2001plus_enable_hwecc(struct mtd_info *mtd, int mode)  in doc2001plus_enable_hwecc()  argument
826 	struct nand_chip *this = mtd->priv;  in doc2001plus_enable_hwecc()
844 static int doc200x_calculate_ecc(struct mtd_info *mtd, const u_char *dat, unsigned char *ecc_code)  in doc200x_calculate_ecc()  argument
846 	struct nand_chip *this = mtd->priv;  in doc200x_calculate_ecc()
903 static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat,  in doc200x_correct_data()  argument
907 	struct nand_chip *this = mtd->priv;  in doc200x_correct_data()
1005 static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const char *id, int findmir…  in find_media_headers()  argument
1007 	struct nand_chip *this = mtd->priv;  in find_media_headers()
1013 	for (offs = 0; offs < mtd->size; offs += mtd->erasesize) {  in find_media_headers()
1014 		ret = mtd_read(mtd, offs, mtd->writesize, &retlen, buf);  in find_media_headers()
1015 		if (retlen != mtd->writesize)  in find_media_headers()
1039 	ret = mtd_read(mtd, offs, mtd->writesize, &retlen, buf);  in find_media_headers()
1040 	if (retlen != mtd->writesize) {  in find_media_headers()
1048 static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partition *parts)  in nftl_partscan()  argument
1050 	struct nand_chip *this = mtd->priv;  in nftl_partscan()
1060 	buf = kmalloc(mtd->writesize, GFP_KERNEL);  in nftl_partscan()
1064 	if (!(numheaders = find_media_headers(mtd, buf, "ANAND", 1)))  in nftl_partscan()
1081 	blocks = mtd->size >> this->phys_erase_shift;  in nftl_partscan()
1082 	maxblocks = min(32768U, mtd->erasesize - psize);  in nftl_partscan()
1106 		mtd->erasesize <<= (0xff - mh->UnitSizeFactor);  in nftl_partscan()
1107 		printk(KERN_INFO "Setting virtual erase size to %d\n", mtd->erasesize);  in nftl_partscan()
1108 		blocks = mtd->size >> this->bbt_erase_shift;  in nftl_partscan()
1109 		maxblocks = min(32768U, mtd->erasesize - psize);  in nftl_partscan()
1120 	offs += mtd->erasesize;  in nftl_partscan()
1136 	if (offs < mtd->size) {  in nftl_partscan()
1139 		parts[numparts].size = mtd->size - offs;  in nftl_partscan()
1150 static inline int __init inftl_partscan(struct mtd_info *mtd, struct mtd_partition *parts)  in inftl_partscan()  argument
1152 	struct nand_chip *this = mtd->priv;  in inftl_partscan()
1162 	int end = mtd->size;  in inftl_partscan()
1167 	buf = kmalloc(mtd->writesize, GFP_KERNEL);  in inftl_partscan()
1172 	if (!find_media_headers(mtd, buf, "BNAND", 0))  in inftl_partscan()
1204 	blocks = mtd->size >> vshift;  in inftl_partscan()
1211 	if (inftl_bbt_write && (blocks > mtd->erasesize)) {  in inftl_partscan()
1240 			parts[0].size = mtd->erasesize * ip->firstUnit;  in inftl_partscan()
1269 static int __init nftl_scan_bbt(struct mtd_info *mtd)  in nftl_scan_bbt()  argument
1272 	struct nand_chip *this = mtd->priv;  in nftl_scan_bbt()
1279 	numparts = nftl_partscan(mtd, parts);  in nftl_scan_bbt()
1299 	if ((ret = nand_scan_bbt(mtd, NULL)))  in nftl_scan_bbt()
1301 	mtd_device_register(mtd, NULL, 0);  in nftl_scan_bbt()
1303 		mtd_device_register(mtd, parts, numparts);  in nftl_scan_bbt()
1307 static int __init inftl_scan_bbt(struct mtd_info *mtd)  in inftl_scan_bbt()  argument
1310 	struct nand_chip *this = mtd->priv;  in inftl_scan_bbt()
1349 	if ((ret = nand_scan_bbt(mtd, NULL)))  in inftl_scan_bbt()
1352 	numparts = inftl_partscan(mtd, parts);  in inftl_scan_bbt()
1358 	mtd_device_register(mtd, NULL, 0);  in inftl_scan_bbt()
1360 		mtd_device_register(mtd, parts, numparts);  in inftl_scan_bbt()
1364 static inline int __init doc2000_init(struct mtd_info *mtd)  in doc2000_init()  argument
1366 	struct nand_chip *this = mtd->priv;  in doc2000_init()
1375 	doc2000_count_chips(mtd);  in doc2000_init()
1376 	mtd->name = "DiskOnChip 2000 (NFTL Model)";  in doc2000_init()
1380 static inline int __init doc2001_init(struct mtd_info *mtd)  in doc2001_init()  argument
1382 	struct nand_chip *this = mtd->priv;  in doc2001_init()
1397 		doc2000_count_chips(mtd);  in doc2001_init()
1398 		mtd->name = "DiskOnChip 2000 (INFTL Model)";  in doc2001_init()
1404 		mtd->name = "DiskOnChip Millennium";  in doc2001_init()
1410 static inline int __init doc2001plus_init(struct mtd_info *mtd)  in doc2001plus_init()  argument
1412 	struct nand_chip *this = mtd->priv;  in doc2001plus_init()
1425 	mtd->name = "DiskOnChip Millennium Plus";  in doc2001plus_init()
1433 	struct mtd_info *mtd;  in doc_probe()  local
1526 	for (mtd = doclist; mtd; mtd = doc->nextdoc) {  in doc_probe()
1529 		nand = mtd->priv;  in doc_probe()
1564 	mtd = kzalloc(len, GFP_KERNEL);  in doc_probe()
1565 	if (!mtd) {  in doc_probe()
1570 	nand			= (struct nand_chip *) (mtd + 1);  in doc_probe()
1575 	mtd->priv		= nand;  in doc_probe()
1576 	mtd->owner		= THIS_MODULE;  in doc_probe()
1605 		numchips = doc2000_init(mtd);  in doc_probe()
1607 		numchips = doc2001plus_init(mtd);  in doc_probe()
1609 		numchips = doc2001_init(mtd);  in doc_probe()
1611 	if ((ret = nand_scan(mtd, numchips))) {  in doc_probe()
1618 		nand_release(mtd);  in doc_probe()
1619 		kfree(mtd);  in doc_probe()
1624 	doclist = mtd;  in doc_probe()
1642 	struct mtd_info *mtd, *nextmtd;  in release_nanddoc()  local
1646 	for (mtd = doclist; mtd; mtd = nextmtd) {  in release_nanddoc()
1647 		nand = mtd->priv;  in release_nanddoc()
1651 		nand_release(mtd);  in release_nanddoc()
1654 		kfree(mtd);  in release_nanddoc()