linux/drivers/mtd/nand/raw/sharpsl.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 *  Copyright (C) 2004 Richard Purdie
 *  Copyright (C) 2008 Dmitry Baryshkov
 *
 *  Based on Sharp's NAND driver sharp_sl.c
 */

#include <linux/slab.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/sharpsl.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/io.h>

struct sharpsl_nand { … };

static inline struct sharpsl_nand *mtd_to_sharpsl(struct mtd_info *mtd)
{ … }

/* register offset */
#define ECCLPLB …
#define ECCLPUB …
#define ECCCP …
#define ECCCNTR …
#define ECCCLRR …
#define FLASHIO …
#define FLASHCTL …

/* Flash control bit */
#define FLRYBY …
#define FLCE1 …
#define FLWP …
#define FLALE …
#define FLCLE …
#define FLCE0 …

/*
 *	hardware specific access to control-lines
 *	ctrl:
 *	NAND_CNE: bit 0 -> ! bit 0 & 4
 *	NAND_CLE: bit 1 -> bit 1
 *	NAND_ALE: bit 2 -> bit 2
 *
 */
static void sharpsl_nand_hwcontrol(struct nand_chip *chip, int cmd,
				   unsigned int ctrl)
{ … }

static int sharpsl_nand_dev_ready(struct nand_chip *chip)
{ … }

static void sharpsl_nand_enable_hwecc(struct nand_chip *chip, int mode)
{ … }

static int sharpsl_nand_calculate_ecc(struct nand_chip *chip,
				      const u_char * dat, u_char * ecc_code)
{ … }

static int sharpsl_attach_chip(struct nand_chip *chip)
{ … }

static const struct nand_controller_ops sharpsl_ops = …;

/*
 * Main initialization routine
 */
static int sharpsl_nand_probe(struct platform_device *pdev)
{ … }

/*
 * Clean up routine
 */
static void sharpsl_nand_remove(struct platform_device *pdev)
{ … }

static struct platform_driver sharpsl_nand_driver = …;

module_platform_driver(…) …;

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