linux/drivers/mtd/nand/raw/ingenic/jz4725b_bch.c

// SPDX-License-Identifier: GPL-2.0
/*
 * JZ4725B BCH controller driver
 *
 * Copyright (C) 2019 Paul Cercueil <[email protected]>
 *
 * Based on jz4780_bch.c
 */

#include <linux/bitops.h>
#include <linux/device.h>
#include <linux/io.h>
#include <linux/iopoll.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>

#include "ingenic_ecc.h"

#define BCH_BHCR …
#define BCH_BHCSR …
#define BCH_BHCCR …
#define BCH_BHCNT …
#define BCH_BHDR …
#define BCH_BHPAR0 …
#define BCH_BHERR0 …
#define BCH_BHINT …
#define BCH_BHINTES …
#define BCH_BHINTEC …
#define BCH_BHINTE …

#define BCH_BHCR_ENCE …
#define BCH_BHCR_BSEL …
#define BCH_BHCR_INIT …
#define BCH_BHCR_BCHE …

#define BCH_BHCNT_DEC_COUNT_SHIFT …
#define BCH_BHCNT_DEC_COUNT_MASK …
#define BCH_BHCNT_ENC_COUNT_SHIFT …
#define BCH_BHCNT_ENC_COUNT_MASK …

#define BCH_BHERR_INDEX0_SHIFT …
#define BCH_BHERR_INDEX0_MASK …
#define BCH_BHERR_INDEX1_SHIFT …
#define BCH_BHERR_INDEX1_MASK …

#define BCH_BHINT_ERRC_SHIFT …
#define BCH_BHINT_ERRC_MASK …
#define BCH_BHINT_TERRC_SHIFT …
#define BCH_BHINT_TERRC_MASK …
#define BCH_BHINT_ALL_0 …
#define BCH_BHINT_ALL_F …
#define BCH_BHINT_DECF …
#define BCH_BHINT_ENCF …
#define BCH_BHINT_UNCOR …
#define BCH_BHINT_ERR …

/* Timeout for BCH calculation/correction. */
#define BCH_TIMEOUT_US …

static inline void jz4725b_bch_config_set(struct ingenic_ecc *bch, u32 cfg)
{ … }

static inline void jz4725b_bch_config_clear(struct ingenic_ecc *bch, u32 cfg)
{ … }

static int jz4725b_bch_reset(struct ingenic_ecc *bch,
			     struct ingenic_ecc_params *params, bool calc_ecc)
{ … }

static void jz4725b_bch_disable(struct ingenic_ecc *bch)
{ … }

static void jz4725b_bch_write_data(struct ingenic_ecc *bch, const u8 *buf,
				   size_t size)
{ … }

static void jz4725b_bch_read_parity(struct ingenic_ecc *bch, u8 *buf,
				    size_t size)
{ … }

static int jz4725b_bch_wait_complete(struct ingenic_ecc *bch, unsigned int irq,
				     u32 *status)
{ … }

static int jz4725b_calculate(struct ingenic_ecc *bch,
			     struct ingenic_ecc_params *params,
			     const u8 *buf, u8 *ecc_code)
{ … }

static int jz4725b_correct(struct ingenic_ecc *bch,
			   struct ingenic_ecc_params *params,
			   u8 *buf, u8 *ecc_code)
{ … }

static const struct ingenic_ecc_ops jz4725b_bch_ops = …;

static const struct of_device_id jz4725b_bch_dt_match[] = …;
MODULE_DEVICE_TABLE(of, jz4725b_bch_dt_match);

static struct platform_driver jz4725b_bch_driver = …;
module_platform_driver(…) …;

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;