nand_read_page_hwecc_oob_first (9) Linux Manual Page
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
mtd
-
- mtd info structure
chip
- nand chip info structure
buf
- buffer to store read data
oob_required
- caller requires OOB data read to chip->oob_poi
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 [at] linutronix.de>
- Author.