1932394acSWolfgang Denk /* 2932394acSWolfgang Denk * drivers/mtd/nand_ecc.h 3932394acSWolfgang Denk * 4*78e9e71cSTom Rini * Copyright (C) 2000-2010 Steven J. Hill <sjhill@realitydiluted.com> 5*78e9e71cSTom Rini * David Woodhouse <dwmw2@infradead.org> 6*78e9e71cSTom Rini * Thomas Gleixner <tglx@linutronix.de> 7932394acSWolfgang Denk * 8*78e9e71cSTom Rini * SPDX-License-Identifier: GPL-2.0 9932394acSWolfgang Denk * 10932394acSWolfgang Denk * This file is the header for the ECC algorithm. 11932394acSWolfgang Denk */ 12932394acSWolfgang Denk 13932394acSWolfgang Denk #ifndef __MTD_NAND_ECC_H__ 14932394acSWolfgang Denk #define __MTD_NAND_ECC_H__ 15932394acSWolfgang Denk 16932394acSWolfgang Denk struct mtd_info; 17932394acSWolfgang Denk 18932394acSWolfgang Denk /* 19932394acSWolfgang Denk * Calculate 3 byte ECC code for 256 byte block 20932394acSWolfgang Denk */ 21932394acSWolfgang Denk int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code); 22932394acSWolfgang Denk 23932394acSWolfgang Denk /* 24932394acSWolfgang Denk * Detect and correct a 1 bit error for 256 byte block 25932394acSWolfgang Denk */ 26932394acSWolfgang Denk int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc); 27932394acSWolfgang Denk 28932394acSWolfgang Denk #endif /* __MTD_NAND_ECC_H__ */ 29