79 	struct mtd_info	*mtd;  member
242 static void docg4_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)  in docg4_read_buf()  argument
245 	struct nand_chip *nand = mtd->priv;  in docg4_read_buf()
253 static void docg4_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)  in docg4_write_buf16()  argument
256 	struct nand_chip *nand = mtd->priv;  in docg4_write_buf16()
297 static int docg4_wait(struct mtd_info *mtd, struct nand_chip *nand)  in docg4_wait()  argument
315 static void docg4_select_chip(struct mtd_info *mtd, int chip)  in docg4_select_chip()  argument
321 	struct nand_chip *nand = mtd->priv;  in docg4_select_chip()
336 static void reset(struct mtd_info *mtd)  in reset()  argument
340 	struct nand_chip *nand = mtd->priv;  in reset()
371 static int correct_data(struct mtd_info *mtd, uint8_t *buf, int page)  in correct_data()  argument
378 	struct nand_chip *nand = mtd->priv;  in correct_data()
465 static uint8_t docg4_read_byte(struct mtd_info *mtd)  in docg4_read_byte()  argument
467 	struct nand_chip *nand = mtd->priv;  in docg4_read_byte()
541 static int pageprog(struct mtd_info *mtd)  in pageprog()  argument
548 	struct nand_chip *nand = mtd->priv;  in pageprog()
581 static void sequence_reset(struct mtd_info *mtd)  in sequence_reset()  argument
585 	struct nand_chip *nand = mtd->priv;  in sequence_reset()
598 static void read_page_prologue(struct mtd_info *mtd, uint32_t docg4_addr)  in read_page_prologue()  argument
602 	struct nand_chip *nand = mtd->priv;  in read_page_prologue()
609 	sequence_reset(mtd);  in read_page_prologue()
625 static void write_page_prologue(struct mtd_info *mtd, uint32_t docg4_addr)  in write_page_prologue()  argument
629 	struct nand_chip *nand = mtd->priv;  in write_page_prologue()
635 	sequence_reset(mtd);  in write_page_prologue()
689 static void docg4_command(struct mtd_info *mtd, unsigned command, int column,  in docg4_command()  argument
694 	struct nand_chip *nand = mtd->priv;  in docg4_command()
712 		reset(mtd);  in docg4_command()
716 		read_page_prologue(mtd, g4_addr);  in docg4_command()
733 		write_page_prologue(mtd, g4_addr);  in docg4_command()
741 		pageprog(mtd);  in docg4_command()
756 static int read_page(struct mtd_info *mtd, struct nand_chip *nand,  in read_page()  argument
788 	docg4_read_buf(mtd, buf, DOCG4_PAGE_SIZE); /* read the page data */  in read_page()
792 	docg4_read_buf(mtd, nand->oob_poi, 14);  in read_page()
809 			bits_corrected = correct_data(mtd, buf, page);  in read_page()
811 				mtd->ecc_stats.failed++;  in read_page()
813 				mtd->ecc_stats.corrected += bits_corrected;  in read_page()
824 static int docg4_read_page_raw(struct mtd_info *mtd, struct nand_chip *nand,  in docg4_read_page_raw()  argument
827 	return read_page(mtd, nand, buf, page, false);  in docg4_read_page_raw()
830 static int docg4_read_page(struct mtd_info *mtd, struct nand_chip *nand,  in docg4_read_page()  argument
833 	return read_page(mtd, nand, buf, page, true);  in docg4_read_page()
836 static int docg4_read_oob(struct mtd_info *mtd, struct nand_chip *nand,  in docg4_read_oob()  argument
845 	docg4_command(mtd, NAND_CMD_READ0, nand->ecc.size, page);  in docg4_read_oob()
864 	docg4_read_buf(mtd, nand->oob_poi, 16);  in docg4_read_oob()
875 static int docg4_erase_block(struct mtd_info *mtd, int page)  in docg4_erase_block()  argument
877 	struct nand_chip *nand = mtd->priv;  in docg4_erase_block()
884 	sequence_reset(mtd);  in docg4_erase_block()
920 	return nand->waitfunc(mtd, nand);  in docg4_erase_block()
923 static int write_page(struct mtd_info *mtd, struct nand_chip *nand,  in write_page()  argument
939 	docg4_write_buf16(mtd, buf, DOCG4_PAGE_SIZE);  in write_page()
942 	docg4_write_buf16(mtd, nand->oob_poi, 6);  in write_page()
970 	docg4_write_buf16(mtd, ecc_buf, 8);  in write_page()
979 static int docg4_write_page_raw(struct mtd_info *mtd, struct nand_chip *nand,  in docg4_write_page_raw()  argument
982 	return write_page(mtd, nand, buf, false);  in docg4_write_page_raw()
985 static int docg4_write_page(struct mtd_info *mtd, struct nand_chip *nand,  in docg4_write_page()  argument
988 	return write_page(mtd, nand, buf, true);  in docg4_write_page()
991 static int docg4_write_oob(struct mtd_info *mtd, struct nand_chip *nand,  in docg4_write_oob()  argument
1012 static int __init read_factory_bbt(struct mtd_info *mtd)  in read_factory_bbt()  argument
1019 	struct nand_chip *nand = mtd->priv;  in read_factory_bbt()
1024 	__u32 eccfailed_stats = mtd->ecc_stats.failed;  in read_factory_bbt()
1030 	read_page_prologue(mtd, g4_addr);  in read_factory_bbt()
1031 	docg4_read_page(mtd, nand, buf, 0, DOCG4_FACTORY_BBT_PAGE);  in read_factory_bbt()
1043 	if (mtd->ecc_stats.failed > eccfailed_stats) {  in read_factory_bbt()
1048 		eccfailed_stats = mtd->ecc_stats.failed;  in read_factory_bbt()
1049 		docg4_read_page(mtd, nand, buf, 0, DOCG4_REDUNDANT_BBT_PAGE);  in read_factory_bbt()
1050 		if (mtd->ecc_stats.failed > eccfailed_stats) {  in read_factory_bbt()
1069 			mtd->ecc_stats.badblocks++;  in read_factory_bbt()
1079 static int docg4_block_markbad(struct mtd_info *mtd, loff_t ofs)  in docg4_block_markbad()  argument
1092 	struct nand_chip *nand = mtd->priv;  in docg4_block_markbad()
1110 	memset(nand->oob_poi, 0xff, mtd->oobsize);  in docg4_block_markbad()
1115 	write_page_prologue(mtd, g4_addr);  in docg4_block_markbad()
1116 	docg4_write_page(mtd, nand, buf, 1, page);  in docg4_block_markbad()
1117 	ret = pageprog(mtd);  in docg4_block_markbad()
1124 static int docg4_block_neverbad(struct mtd_info *mtd, loff_t ofs, int getchip)  in docg4_block_neverbad()  argument
1190 static void __init init_mtd_structs(struct mtd_info *mtd)  in init_mtd_structs()  argument
1205 	struct nand_chip *nand = mtd->priv;  in init_mtd_structs()
1208 	mtd->size = DOCG4_CHIP_SIZE;  in init_mtd_structs()
1209 	mtd->name = "Msys_Diskonchip_G4";  in init_mtd_structs()
1210 	mtd->writesize = DOCG4_PAGE_SIZE;  in init_mtd_structs()
1211 	mtd->erasesize = DOCG4_BLOCK_SIZE;  in init_mtd_structs()
1212 	mtd->oobsize = DOCG4_OOB_SIZE;  in init_mtd_structs()
1262 static int __init read_id_reg(struct mtd_info *mtd)  in read_id_reg()  argument
1264 	struct nand_chip *nand = mtd->priv;  in read_id_reg()
1288 	struct mtd_info *mtd;  in probe_docg4()  local
1310 	mtd = kzalloc(len, GFP_KERNEL);  in probe_docg4()
1311 	if (mtd == NULL) {  in probe_docg4()
1315 	nand = (struct nand_chip *) (mtd + 1);  in probe_docg4()
1317 	mtd->priv = nand;  in probe_docg4()
1319 	mtd->dev.parent = &pdev->dev;  in probe_docg4()
1323 	init_mtd_structs(mtd);  in probe_docg4()
1334 	reset(mtd);  in probe_docg4()
1335 	retval = read_id_reg(mtd);  in probe_docg4()
1341 	retval = nand_scan_tail(mtd);  in probe_docg4()
1345 	retval = read_factory_bbt(mtd);  in probe_docg4()
1349 	retval = mtd_device_parse_register(mtd, part_probes, NULL, NULL, 0);  in probe_docg4()
1353 	doc->mtd = mtd;  in probe_docg4()
1358 	if (mtd) {  in probe_docg4()
1360 		struct nand_chip *nand = mtd->priv;  in probe_docg4()
1362 		nand_release(mtd); /* deletes partitions and mtd devices */  in probe_docg4()
1364 		kfree(mtd);  in probe_docg4()
1373 	nand_release(doc->mtd);  in cleanup_docg4()
1375 	kfree(doc->mtd);  in cleanup_docg4()