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/* SPDX-License-Identifier: GPL-2.0 */
/*
* © Copyright 2016 ATMEL
* © Copyright 2016 Free Electrons
*
* Author: Boris Brezillon <boris.brezillon@free-electrons.com>
*
* Derived from the atmel_nand.c driver which contained the following
* copyrights:
*
* Copyright © 2003 Rick Bronson
*
* Derived from drivers/mtd/nand/autcpu12.c (removed in v3.8)
* Copyright © 2001 Thomas Gleixner (gleixner@autronix.de)
*
* Derived from drivers/mtd/spia.c (removed in v3.8)
* Copyright © 2000 Steven J. Hill (sjhill@cotw.com)
*
*
* Add Hardware ECC support for AT91SAM9260 / AT91SAM9263
* Richard Genoud (richard.genoud@gmail.com), Adeneo Copyright © 2007
*
* Derived from Das U-Boot source code
* (u-boot-1.1.5/board/atmel/at91sam9263ek/nand.c)
* © Copyright 2006 ATMEL Rousset, Lacressonniere Nicolas
*
* Add Programmable Multibit ECC support for various AT91 SoC
* © Copyright 2012 ATMEL, Hong Xu
*
* Add Nand Flash Controller support for SAMA5 SoC
* © Copyright 2013 ATMEL, Josh Wu (josh.wu@atmel.com)
*/
#ifndef ATMEL_PMECC_H
#define ATMEL_PMECC_H
#define ATMEL_PMECC_MAXIMIZE_ECC_STRENGTH 0
#define ATMEL_PMECC_SECTOR_SIZE_AUTO 0
#define ATMEL_PMECC_OOBOFFSET_AUTO -1
struct atmel_pmecc_user_req {
int pagesize;
int oobsize;
struct {
int strength;
int bytes;
int sectorsize;
int nsectors;
int ooboffset;
} ecc;
};
struct atmel_pmecc *devm_atmel_pmecc_get(struct device *dev);
struct atmel_pmecc_user *
atmel_pmecc_create_user(struct atmel_pmecc *pmecc,
struct atmel_pmecc_user_req *req);
void atmel_pmecc_destroy_user(struct atmel_pmecc_user *user);
void atmel_pmecc_reset(struct atmel_pmecc *pmecc);
int atmel_pmecc_enable(struct atmel_pmecc_user *user, int op);
void atmel_pmecc_disable(struct atmel_pmecc_user *user);
int atmel_pmecc_wait_rdy(struct atmel_pmecc_user *user);
int atmel_pmecc_correct_sector(struct atmel_pmecc_user *user, int sector,
void *data, void *ecc);
bool atmel_pmecc_correct_erased_chunks(struct atmel_pmecc_user *user);
void atmel_pmecc_get_generated_eccbytes(struct atmel_pmecc_user *user,
int sector, void *ecc);
#endif /* ATMEL_PMECC_H */
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