1 /* 2 * drivers/mtd/nand_ecc.h 3 * 4 * Copyright (C) 2000-2010 Steven J. Hill <sjhill@realitydiluted.com> 5 * David Woodhouse <dwmw2@infradead.org> 6 * Thomas Gleixner <tglx@linutronix.de> 7 * 8 * SPDX-License-Identifier: GPL-2.0 9 * 10 * This file is the header for the ECC algorithm. 11 */ 12 13 #ifndef __MTD_NAND_ECC_H__ 14 #define __MTD_NAND_ECC_H__ 15 16 struct mtd_info; 17 18 /* 19 * Calculate 3 byte ECC code for 256 byte block 20 */ 21 int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code); 22 23 /* 24 * Detect and correct a 1 bit error for 256 byte block 25 */ 26 int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc); 27 28 #endif /* __MTD_NAND_ECC_H__ */ 29