linux/drivers/mtd/nand/spi/toshiba.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2018 exceet electronics GmbH
 * Copyright (c) 2018 Kontron Electronics GmbH
 *
 * Author: Frieder Schrempf <[email protected]>
 */

#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/mtd/spinand.h>

/* Kioxia is new name of Toshiba memory. */
#define SPINAND_MFR_TOSHIBA …
#define TOSH_STATUS_ECC_HAS_BITFLIPS_T …

static SPINAND_OP_VARIANTS(read_cache_variants,
		SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
		SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0),
		SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0),
		SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0));

static SPINAND_OP_VARIANTS(write_cache_x4_variants,
		SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
		SPINAND_PROG_LOAD(true, 0, NULL, 0));

static SPINAND_OP_VARIANTS(update_cache_x4_variants,
		SPINAND_PROG_LOAD_X4(false, 0, NULL, 0),
		SPINAND_PROG_LOAD(false, 0, NULL, 0));

/*
 * Backward compatibility for 1st generation Serial NAND devices
 * which don't support Quad Program Load operation.
 */
static SPINAND_OP_VARIANTS(write_cache_variants,
		SPINAND_PROG_LOAD(true, 0, NULL, 0));

static SPINAND_OP_VARIANTS(update_cache_variants,
		SPINAND_PROG_LOAD(false, 0, NULL, 0));

static int tx58cxgxsxraix_ooblayout_ecc(struct mtd_info *mtd, int section,
					struct mtd_oob_region *region)
{ … }

static int tx58cxgxsxraix_ooblayout_free(struct mtd_info *mtd, int section,
					 struct mtd_oob_region *region)
{ … }

static const struct mtd_ooblayout_ops tx58cxgxsxraix_ooblayout = …;

static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
					 u8 status)
{ … }

static const struct spinand_info toshiba_spinand_table[] = …;

static const struct spinand_manufacturer_ops toshiba_spinand_manuf_ops = …;

const struct spinand_manufacturer toshiba_spinand_manufacturer = …;