nand_read_page_hwecc_oob_first — [REPLACEABLE] hw ecc, read oob first


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


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


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.