/* 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 */