drivers/mtd/spi-nor/macronix.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2005, Intec Automation Inc.
 * Copyright (C) 2014, Freescale Semiconductor, Inc.
 */

#include <linux/mtd/spi-nor.h>

#include "core.h"

static int
mx25l25635_post_bfpt_fixups(struct spi_nor *nor,
			    const struct sfdp_parameter_header *bfpt_header,
			    const struct sfdp_bfpt *bfpt)
{
	/*
	 * MX25L25635F supports 4B opcodes but MX25L25635E does not.
	 * Unfortunately, Macronix has re-used the same JEDEC ID for both
	 * variants which prevents us from defining a new entry in the parts
	 * table.
	 * We need a way to differentiate MX25L25635E and MX25L25635F, and it
	 * seems that the F version advertises support for Fast Read 4-4-4 in
	 * its BFPT table.
	 */
	if (bfpt->dwords[BFPT_DWORD(5)] & BFPT_DWORD5_FAST_READ_4_4_4)
		nor->flags |= SNOR_F_4B_OPCODES;

	return 0;
}

static const struct spi_nor_fixups mx25l25635_fixups = {
	.post_bfpt = mx25l25635_post_bfpt_fixups,
};

static const struct flash_info macronix_parts[] = {
	/* Macronix */
	{ "mx25l512e",   INFO(0xc22010, 0, 64 * 1024,   1)
		NO_SFDP_FLAGS(SECT_4K) },
	{ "mx25l2005a",  INFO(0xc22012, 0, 64 * 1024,   4)
		NO_SFDP_FLAGS(SECT_4K) },
	{ "mx25l4005a",  INFO(0xc22013, 0, 64 * 1024,   8)
		NO_SFDP_FLAGS(SECT_4K) },
	{ "mx25l8005",   INFO(0xc22014, 0, 64 * 1024,  16) },
	{ "mx25l1606e",  INFO(0xc22015, 0, 64 * 1024,  32)
		NO_SFDP_FLAGS(SECT_4K) },
	{ "mx25l3205d",  INFO(0xc22016, 0, 64 * 1024,  64)
		NO_SFDP_FLAGS(SECT_4K) },
	{ "mx25l3255e",  INFO(0xc29e16, 0, 64 * 1024,  64)
		NO_SFDP_FLAGS(SECT_4K) },
	{ "mx25l6405d",  INFO(0xc22017, 0, 64 * 1024, 128)
		NO_SFDP_FLAGS(SECT_4K) },
	{ "mx25u2033e",  INFO(0xc22532, 0, 64 * 1024,   4)
		NO_SFDP_FLAGS(SECT_4K) },
	{ "mx25u3235f",	 INFO(0xc22536, 0, 64 * 1024,  64)
		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
			      SPI_NOR_QUAD_READ) },
	{ "mx25u4035",   INFO(0xc22533, 0, 64 * 1024,   8)
		NO_SFDP_FLAGS(SECT_4K) },
	{ "mx25u8035",   INFO(0xc22534, 0, 64 * 1024,  16)
		NO_SFDP_FLAGS(SECT_4K) },
	{ "mx25u6435f",  INFO(0xc22537, 0, 64 * 1024, 128)
		NO_SFDP_FLAGS(SECT_4K) },
	{ "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256)
		FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_4BIT_BP)
		NO_SFDP_FLAGS(SECT_4K) },
	{ "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256) },
	{ "mx25r1635f",  INFO(0xc22815, 0, 64 * 1024,  32)
		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
			      SPI_NOR_QUAD_READ) },
	{ "mx25r3235f",  INFO(0xc22816, 0, 64 * 1024,  64)
		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
			      SPI_NOR_QUAD_READ) },
	{ "mx25u12835f", INFO(0xc22538, 0, 64 * 1024, 256)
		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
			      SPI_NOR_QUAD_READ) },
	{ "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512)
		NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
		.fixups = &mx25l25635_fixups },
	{ "mx25u25635f", INFO(0xc22539, 0, 64 * 1024, 512)
		NO_SFDP_FLAGS(SECT_4K)
		FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
	{ "mx25u51245g", INFO(0xc2253a, 0, 64 * 1024, 1024)
		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
		FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
	{ "mx25v8035f",  INFO(0xc22314, 0, 64 * 1024,  16)
		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
			      SPI_NOR_QUAD_READ) },
	{ "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512) },
	{ "mx66l51235f", INFO(0xc2201a, 0, 64 * 1024, 1024)
		NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
		FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
	{ "mx66u51235f", INFO(0xc2253a, 0, 64 * 1024, 1024)
		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
		FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
	{ "mx66l1g45g",  INFO(0xc2201b, 0, 64 * 1024, 2048)
		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
			      SPI_NOR_QUAD_READ) },
	{ "mx66l1g55g",  INFO(0xc2261b, 0, 64 * 1024, 2048)
		NO_SFDP_FLAGS(SPI_NOR_QUAD_READ) },
	{ "mx66u2g45g",	 INFO(0xc2253c, 0, 64 * 1024, 4096)
		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
		FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
};

static void macronix_default_init(struct spi_nor *nor)
{
	nor->params->quad_enable = spi_nor_sr1_bit6_quad_enable;
	nor->params->set_4byte_addr_mode = spi_nor_set_4byte_addr_mode;
}

static const struct spi_nor_fixups macronix_fixups = {
	.default_init = macronix_default_init,
};

const struct spi_nor_manufacturer spi_nor_macronix = {
	.name = "macronix",
	.parts = macronix_parts,
	.nparts = ARRAY_SIZE(macronix_parts),
	.fixups = &macronix_fixups,
};