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* JZ4780 BCH controller
* Copyright (c) 2015 Imagination Technologies
* Author: Alex Smith <>
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
#ifndef __DRIVERS_MTD_NAND_JZ4780_BCH_H__
#define __DRIVERS_MTD_NAND_JZ4780_BCH_H__
#include <linux/types.h>
struct device;
struct device_node;
struct jz4780_bch;
* struct jz4780_bch_params - BCH parameters
* @size: data bytes per ECC step.
* @bytes: ECC bytes per step.
* @strength: number of correctable bits per ECC step.
struct jz4780_bch_params {
int size;
int bytes;
int strength;
int jz4780_bch_calculate(struct jz4780_bch *bch,
struct jz4780_bch_params *params,
const u8 *buf, u8 *ecc_code);
int jz4780_bch_correct(struct jz4780_bch *bch,
struct jz4780_bch_params *params, u8 *buf,
u8 *ecc_code);
void jz4780_bch_release(struct jz4780_bch *bch);
struct jz4780_bch *of_jz4780_bch_get(struct device_node *np);
#endif /* __DRIVERS_MTD_NAND_JZ4780_BCH_H__ */