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NAND_READ_PAGE_HWECC(9) Internal Functions Provided NAND_READ_PAGE_HWECC(9)

NAME

nand_read_page_hwecc_oob_first - [REPLACEABLE] hw ecc, read oob first

SYNOPSIS

int nand_read_page_hwecc_oob_first(struct mtd_info * mtd, struct nand_chip * chip, uint8_t * buf, int oob_required, int page);

ARGUMENTS

struct mtd_info * mtd

mtd info structure

struct nand_chip * chip

nand chip info structure

uint8_t * buf

buffer to store read data

int oob_required

caller requires OOB data read to chip->oob_poi

int page

page number to read

DESCRIPTION

Hardware ECC for large page chips, require OOB to be read first. For this ECC mode, the write_page method is re-used from ECC_HW. These methods read/write ECC from the OOB area, unlike the ECC_HW_SYNDROME support with multiple ECC steps, follows the “infix ECC” scheme and reads/writes ECC from the data area, by overwriting the NAND manufacturer bad block markings.

AUTHOR

Thomas Gleixner <tglx@linutronix.de>

Author.

COPYRIGHT

June 2017 Kernel Hackers Manual 4.11