linux/drivers/mtd/nand/raw/ams-delta.c

// SPDX-License-Identifier: GPL-2.0
/*
 *  Copyright (C) 2006 Jonathan McDowell <[email protected]>
 *
 *  Derived from drivers/mtd/nand/toto.c (removed in v2.6.28)
 *    Copyright (c) 2003 Texas Instruments
 *    Copyright (c) 2002 Thomas Gleixner <[email protected]>
 *
 *  Converted to platform driver by Janusz Krzysztofik <[email protected]>
 *  Partially stolen from plat_nand.c
 *
 *  Overview:
 *   This is a device driver for the NAND flash device found on the
 *   Amstrad E3 (Delta).
 */

#include <linux/slab.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand-gpio.h>
#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/sizes.h>

/*
 * MTD structure for E3 (Delta)
 */
struct gpio_nand { … };

static void gpio_nand_write_commit(struct gpio_nand *priv)
{ … }

static void gpio_nand_io_write(struct gpio_nand *priv, u8 byte)
{ … }

static void gpio_nand_dir_output(struct gpio_nand *priv, u8 byte)
{ … }

static u8 gpio_nand_io_read(struct gpio_nand *priv)
{ … }

static void gpio_nand_dir_input(struct gpio_nand *priv)
{ … }

static void gpio_nand_write_buf(struct gpio_nand *priv, const u8 *buf, int len)
{ … }

static void gpio_nand_read_buf(struct gpio_nand *priv, u8 *buf, int len)
{ … }

static void gpio_nand_ctrl_cs(struct gpio_nand *priv, bool assert)
{ … }

static int gpio_nand_exec_op(struct nand_chip *this,
			     const struct nand_operation *op, bool check_only)
{ … }

static int gpio_nand_setup_interface(struct nand_chip *this, int csline,
				     const struct nand_interface_config *cf)
{ … }

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

static const struct nand_controller_ops gpio_nand_ops = …;

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

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

#ifdef CONFIG_OF
static const struct of_device_id gpio_nand_of_id_table[] = …;
MODULE_DEVICE_TABLE(of, gpio_nand_of_id_table);
#endif

static const struct platform_device_id gpio_nand_plat_id_table[] = …;
MODULE_DEVICE_TABLE(platform, gpio_nand_plat_id_table);

static struct platform_driver gpio_nand_driver = …;

module_platform_driver(…) …;

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