1*93db446aSBoris Brezillon /* 2*93db446aSBoris Brezillon * © Copyright 2016 ATMEL 3*93db446aSBoris Brezillon * © Copyright 2016 Free Electrons 4*93db446aSBoris Brezillon * 5*93db446aSBoris Brezillon * Author: Boris Brezillon <boris.brezillon@free-electrons.com> 6*93db446aSBoris Brezillon * 7*93db446aSBoris Brezillon * Derived from the atmel_nand.c driver which contained the following 8*93db446aSBoris Brezillon * copyrights: 9*93db446aSBoris Brezillon * 10*93db446aSBoris Brezillon * Copyright © 2003 Rick Bronson 11*93db446aSBoris Brezillon * 12*93db446aSBoris Brezillon * Derived from drivers/mtd/nand/autcpu12.c (removed in v3.8) 13*93db446aSBoris Brezillon * Copyright © 2001 Thomas Gleixner (gleixner@autronix.de) 14*93db446aSBoris Brezillon * 15*93db446aSBoris Brezillon * Derived from drivers/mtd/spia.c (removed in v3.8) 16*93db446aSBoris Brezillon * Copyright © 2000 Steven J. Hill (sjhill@cotw.com) 17*93db446aSBoris Brezillon * 18*93db446aSBoris Brezillon * 19*93db446aSBoris Brezillon * Add Hardware ECC support for AT91SAM9260 / AT91SAM9263 20*93db446aSBoris Brezillon * Richard Genoud (richard.genoud@gmail.com), Adeneo Copyright © 2007 21*93db446aSBoris Brezillon * 22*93db446aSBoris Brezillon * Derived from Das U-Boot source code 23*93db446aSBoris Brezillon * (u-boot-1.1.5/board/atmel/at91sam9263ek/nand.c) 24*93db446aSBoris Brezillon * © Copyright 2006 ATMEL Rousset, Lacressonniere Nicolas 25*93db446aSBoris Brezillon * 26*93db446aSBoris Brezillon * Add Programmable Multibit ECC support for various AT91 SoC 27*93db446aSBoris Brezillon * © Copyright 2012 ATMEL, Hong Xu 28*93db446aSBoris Brezillon * 29*93db446aSBoris Brezillon * Add Nand Flash Controller support for SAMA5 SoC 30*93db446aSBoris Brezillon * © Copyright 2013 ATMEL, Josh Wu (josh.wu@atmel.com) 31*93db446aSBoris Brezillon * 32*93db446aSBoris Brezillon * This program is free software; you can redistribute it and/or modify 33*93db446aSBoris Brezillon * it under the terms of the GNU General Public License version 2 as 34*93db446aSBoris Brezillon * published by the Free Software Foundation. 35*93db446aSBoris Brezillon * 36*93db446aSBoris Brezillon */ 37*93db446aSBoris Brezillon 38*93db446aSBoris Brezillon #ifndef ATMEL_PMECC_H 39*93db446aSBoris Brezillon #define ATMEL_PMECC_H 40*93db446aSBoris Brezillon 41*93db446aSBoris Brezillon #define ATMEL_PMECC_MAXIMIZE_ECC_STRENGTH 0 42*93db446aSBoris Brezillon #define ATMEL_PMECC_SECTOR_SIZE_AUTO 0 43*93db446aSBoris Brezillon #define ATMEL_PMECC_OOBOFFSET_AUTO -1 44*93db446aSBoris Brezillon 45*93db446aSBoris Brezillon struct atmel_pmecc_user_req { 46*93db446aSBoris Brezillon int pagesize; 47*93db446aSBoris Brezillon int oobsize; 48*93db446aSBoris Brezillon struct { 49*93db446aSBoris Brezillon int strength; 50*93db446aSBoris Brezillon int bytes; 51*93db446aSBoris Brezillon int sectorsize; 52*93db446aSBoris Brezillon int nsectors; 53*93db446aSBoris Brezillon int ooboffset; 54*93db446aSBoris Brezillon } ecc; 55*93db446aSBoris Brezillon }; 56*93db446aSBoris Brezillon 57*93db446aSBoris Brezillon struct atmel_pmecc *devm_atmel_pmecc_get(struct device *dev); 58*93db446aSBoris Brezillon 59*93db446aSBoris Brezillon struct atmel_pmecc_user * 60*93db446aSBoris Brezillon atmel_pmecc_create_user(struct atmel_pmecc *pmecc, 61*93db446aSBoris Brezillon struct atmel_pmecc_user_req *req); 62*93db446aSBoris Brezillon void atmel_pmecc_destroy_user(struct atmel_pmecc_user *user); 63*93db446aSBoris Brezillon 64*93db446aSBoris Brezillon void atmel_pmecc_reset(struct atmel_pmecc *pmecc); 65*93db446aSBoris Brezillon int atmel_pmecc_enable(struct atmel_pmecc_user *user, int op); 66*93db446aSBoris Brezillon void atmel_pmecc_disable(struct atmel_pmecc_user *user); 67*93db446aSBoris Brezillon int atmel_pmecc_wait_rdy(struct atmel_pmecc_user *user); 68*93db446aSBoris Brezillon int atmel_pmecc_correct_sector(struct atmel_pmecc_user *user, int sector, 69*93db446aSBoris Brezillon void *data, void *ecc); 70*93db446aSBoris Brezillon bool atmel_pmecc_correct_erased_chunks(struct atmel_pmecc_user *user); 71*93db446aSBoris Brezillon void atmel_pmecc_get_generated_eccbytes(struct atmel_pmecc_user *user, 72*93db446aSBoris Brezillon int sector, void *ecc); 73*93db446aSBoris Brezillon 74*93db446aSBoris Brezillon #endif /* ATMEL_PMECC_H */ 75