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); |
mtdmtd info structure
chipnand chip info structure
bufbuffer to store read data
oob_requiredcaller requires OOB data read to chip->oob_poi
pagepage 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.