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