| Boris Brezillon | f88fc12 | 2017-03-16 09:02:40 +0100 | [diff] [blame] | 1 | /* |
| 2 | * © Copyright 2016 ATMEL |
| 3 | * © Copyright 2016 Free Electrons |
| 4 | * |
| 5 | * Author: Boris Brezillon <boris.brezillon@free-electrons.com> |
| 6 | * |
| 7 | * Derived from the atmel_nand.c driver which contained the following |
| 8 | * copyrights: |
| 9 | * |
| 10 | * Copyright © 2003 Rick Bronson |
| 11 | * |
| 12 | * Derived from drivers/mtd/nand/autcpu12.c |
| 13 | * Copyright © 2001 Thomas Gleixner (gleixner@autronix.de) |
| 14 | * |
| 15 | * Derived from drivers/mtd/spia.c |
| 16 | * Copyright © 2000 Steven J. Hill (sjhill@cotw.com) |
| 17 | * |
| 18 | * |
| 19 | * Add Hardware ECC support for AT91SAM9260 / AT91SAM9263 |
| 20 | * Richard Genoud (richard.genoud@gmail.com), Adeneo Copyright © 2007 |
| 21 | * |
| 22 | * Derived from Das U-Boot source code |
| 23 | * (u-boot-1.1.5/board/atmel/at91sam9263ek/nand.c) |
| 24 | * © Copyright 2006 ATMEL Rousset, Lacressonniere Nicolas |
| 25 | * |
| 26 | * Add Programmable Multibit ECC support for various AT91 SoC |
| 27 | * © Copyright 2012 ATMEL, Hong Xu |
| 28 | * |
| 29 | * Add Nand Flash Controller support for SAMA5 SoC |
| 30 | * © Copyright 2013 ATMEL, Josh Wu (josh.wu@atmel.com) |
| 31 | * |
| 32 | * This program is free software; you can redistribute it and/or modify |
| 33 | * it under the terms of the GNU General Public License version 2 as |
| 34 | * published by the Free Software Foundation. |
| 35 | * |
| 36 | */ |
| 37 | |
| 38 | #ifndef ATMEL_PMECC_H |
| 39 | #define ATMEL_PMECC_H |
| 40 | |
| 41 | #define ATMEL_PMECC_MAXIMIZE_ECC_STRENGTH 0 |
| 42 | #define ATMEL_PMECC_SECTOR_SIZE_AUTO 0 |
| 43 | #define ATMEL_PMECC_OOBOFFSET_AUTO -1 |
| 44 | |
| 45 | struct atmel_pmecc_user_req { |
| 46 | int pagesize; |
| 47 | int oobsize; |
| 48 | struct { |
| 49 | int strength; |
| 50 | int bytes; |
| 51 | int sectorsize; |
| 52 | int nsectors; |
| 53 | int ooboffset; |
| 54 | } ecc; |
| 55 | }; |
| 56 | |
| 57 | struct atmel_pmecc *devm_atmel_pmecc_get(struct device *dev); |
| 58 | |
| 59 | struct atmel_pmecc_user * |
| 60 | atmel_pmecc_create_user(struct atmel_pmecc *pmecc, |
| 61 | struct atmel_pmecc_user_req *req); |
| 62 | void atmel_pmecc_destroy_user(struct atmel_pmecc_user *user); |
| 63 | |
| 64 | int atmel_pmecc_enable(struct atmel_pmecc_user *user, int op); |
| 65 | void atmel_pmecc_disable(struct atmel_pmecc_user *user); |
| 66 | int atmel_pmecc_wait_rdy(struct atmel_pmecc_user *user); |
| 67 | int atmel_pmecc_correct_sector(struct atmel_pmecc_user *user, int sector, |
| 68 | void *data, void *ecc); |
| 69 | bool atmel_pmecc_correct_erased_chunks(struct atmel_pmecc_user *user); |
| 70 | void atmel_pmecc_get_generated_eccbytes(struct atmel_pmecc_user *user, |
| 71 | int sector, void *ecc); |
| 72 | |
| 73 | #endif /* ATMEL_PMECC_H */ |