NAND_READ_PAGE_HWECC

Section: Internal Functions Provided (9)
Updated: February 2011
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NAME

nand_read_page_hwecc_oob_first - [REPLACABLE] 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 page);

ARGUMENTS

mtd

: mtd info structure

chip

: nand chip info structure

buf

: buffer to store read data

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 lqinfix ECCrq scheme and reads/writes ECC from the data area, by overwriting the NAND manufacturer bad block markings.

AUTHOR

Thomas Gleixner <tglx@linutronix.de>