os/nandboot-R2_0_4/mtd/nand_ecc.h File Reference

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Functions
int	nand_calculate_ecc (struct mtd_info *mtd, const u_char *dat, u_char *ecc_code)
int	nand_correct_data (struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc)

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Function Documentation

int nand_calculate_ecc	(	struct mtd_info *	mtd,
		const u_char *	dat,
		u_char *	ecc_code
	)

nand_calculate_ecc - [NAND Interface] Calculate 3 byte ECC code for 256 byte block : MTD block structure : raw data : buffer for ECC

Definition at line 125 of file nand_ecc.c.

References nand_ecc_precalc_table, and nand_trans_result().

Referenced by nand_scan(), and nand_scan_tail().

int nand_correct_data	(	struct mtd_info *	mtd,
		u_char *	dat,
		u_char *	read_ecc,
		u_char *	calc_ecc
	)

nand_correct_data - [NAND Interface] Detect and correct bit error(s) : MTD block structure : raw data read from the chip : ECC from the chip : the ECC calculated from raw data

Detect and correct a 1 bit error for 256 byte block

Definition at line 167 of file nand_ecc.c.

References a, add, and bit.

Referenced by nand_scan(), and nand_scan_tail().

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