mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 11:19:37 +00:00
![Thomas Gleixner](/assets/img/avatar_default.png)
Based on 3 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* BCH Error Location Module
|
|
*
|
|
* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
|
|
*/
|
|
|
|
#ifndef __ELM_H
|
|
#define __ELM_H
|
|
|
|
enum bch_ecc {
|
|
BCH4_ECC = 0,
|
|
BCH8_ECC,
|
|
BCH16_ECC,
|
|
};
|
|
|
|
/* ELM support 8 error syndrome process */
|
|
#define ERROR_VECTOR_MAX 8
|
|
|
|
/**
|
|
* struct elm_errorvec - error vector for elm
|
|
* @error_reported: set true for vectors error is reported
|
|
* @error_uncorrectable: number of uncorrectable errors
|
|
* @error_count: number of correctable errors in the sector
|
|
* @error_loc: buffer for error location
|
|
*
|
|
*/
|
|
struct elm_errorvec {
|
|
bool error_reported;
|
|
bool error_uncorrectable;
|
|
int error_count;
|
|
int error_loc[16];
|
|
};
|
|
|
|
#if IS_ENABLED(CONFIG_MTD_NAND_OMAP_BCH)
|
|
void elm_decode_bch_error_page(struct device *dev, u8 *ecc_calc,
|
|
struct elm_errorvec *err_vec);
|
|
int elm_config(struct device *dev, enum bch_ecc bch_type,
|
|
int ecc_steps, int ecc_step_size, int ecc_syndrome_size);
|
|
#else
|
|
static inline void
|
|
elm_decode_bch_error_page(struct device *dev, u8 *ecc_calc,
|
|
struct elm_errorvec *err_vec)
|
|
{
|
|
}
|
|
|
|
static inline int elm_config(struct device *dev, enum bch_ecc bch_type,
|
|
int ecc_steps, int ecc_step_size,
|
|
int ecc_syndrome_size)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
#endif /* CONFIG_MTD_NAND_OMAP_BCH */
|
|
|
|
#endif /* __ELM_H */
|