drivers/mtd/spi-nor/spansion.c - SHIFTPHONES/mainline/linux - Gitiles

 // 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"

 #define SPINOR_OP_RD_ANY_REG			0x65	/* Read any register */
 #define SPINOR_OP_WR_ANY_REG			0x71	/* Write any register */
 #define SPINOR_REG_CYPRESS_CFR2V		0x00800003
 #define SPINOR_REG_CYPRESS_CFR2V_MEMLAT_11_24	0xb
 #define SPINOR_REG_CYPRESS_CFR3V		0x00800004
 #define SPINOR_REG_CYPRESS_CFR3V_PGSZ		BIT(4) /* Page size. */
 #define SPINOR_REG_CYPRESS_CFR5V		0x00800006
 #define SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_EN	0x3
 #define SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_DS	0
 #define SPINOR_OP_CYPRESS_RD_FAST		0xee

 /**
  * spi_nor_cypress_octal_dtr_enable() - Enable octal DTR on Cypress flashes.
  * @nor:		pointer to a 'struct spi_nor'
  * @enable:              whether to enable or disable Octal DTR
  *
  * This also sets the memory access latency cycles to 24 to allow the flash to
  * run at up to 200MHz.
  *
  * Return: 0 on success, -errno otherwise.
  */
 static int spi_nor_cypress_octal_dtr_enable(struct spi_nor *nor, bool enable)
 {
 	struct spi_mem_op op;
 	u8 *buf = nor->bouncebuf;
 	int ret;

 	if (enable) {
 		/* Use 24 dummy cycles for memory array reads. */
 		ret = spi_nor_write_enable(nor);
 		if (ret)
 			return ret;

 		*buf = SPINOR_REG_CYPRESS_CFR2V_MEMLAT_11_24;
 		op = (struct spi_mem_op)
 			SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WR_ANY_REG, 1),
 				   SPI_MEM_OP_ADDR(3, SPINOR_REG_CYPRESS_CFR2V,
 						   1),
 				   SPI_MEM_OP_NO_DUMMY,
 				   SPI_MEM_OP_DATA_OUT(1, buf, 1));

 		ret = spi_mem_exec_op(nor->spimem, &op);
 		if (ret)
 			return ret;

 		ret = spi_nor_wait_till_ready(nor);
 		if (ret)
 			return ret;

 		nor->read_dummy = 24;
 	}

 	/* Set/unset the octal and DTR enable bits. */
 	ret = spi_nor_write_enable(nor);
 	if (ret)
 		return ret;

 	if (enable) {
 		buf[0] = SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_EN;
 	} else {
 		/*
 		 * The register is 1-byte wide, but 1-byte transactions are not
 		 * allowed in 8D-8D-8D mode. Since there is no register at the
 		 * next location, just initialize the value to 0 and let the
 		 * transaction go on.
 		 */
 		buf[0] = SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_DS;
 		buf[1] = 0;
 	}

 	op = (struct spi_mem_op)
 		SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WR_ANY_REG, 1),
 			   SPI_MEM_OP_ADDR(enable ? 3 : 4,
 					   SPINOR_REG_CYPRESS_CFR5V,
 					   1),
 			   SPI_MEM_OP_NO_DUMMY,
 			   SPI_MEM_OP_DATA_OUT(enable ? 1 : 2, buf, 1));

 	if (!enable)
 		spi_nor_spimem_setup_op(nor, &op, SNOR_PROTO_8_8_8_DTR);

 	ret = spi_mem_exec_op(nor->spimem, &op);
 	if (ret)
 		return ret;

 	/* Read flash ID to make sure the switch was successful. */
 	op = (struct spi_mem_op)
 		SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_RDID, 1),
 			   SPI_MEM_OP_ADDR(enable ? 4 : 0, 0, 1),
 			   SPI_MEM_OP_DUMMY(enable ? 3 : 0, 1),
 			   SPI_MEM_OP_DATA_IN(round_up(nor->info->id_len, 2),
 					      buf, 1));

 	if (enable)
 		spi_nor_spimem_setup_op(nor, &op, SNOR_PROTO_8_8_8_DTR);

 	ret = spi_mem_exec_op(nor->spimem, &op);
 	if (ret)
 		return ret;

 	if (memcmp(buf, nor->info->id, nor->info->id_len))
 		return -EINVAL;

 	return 0;
 }

 static void s28hs512t_default_init(struct spi_nor *nor)
 {
 	nor->params->octal_dtr_enable = spi_nor_cypress_octal_dtr_enable;
 	nor->params->writesize = 16;
 }

 static void s28hs512t_post_sfdp_fixup(struct spi_nor *nor)
 {
 	/*
 	 * On older versions of the flash the xSPI Profile 1.0 table has the
 	 * 8D-8D-8D Fast Read opcode as 0x00. But it actually should be 0xEE.
 	 */
 	if (nor->params->reads[SNOR_CMD_READ_8_8_8_DTR].opcode == 0)
 		nor->params->reads[SNOR_CMD_READ_8_8_8_DTR].opcode =
 			SPINOR_OP_CYPRESS_RD_FAST;

 	/* This flash is also missing the 4-byte Page Program opcode bit. */
 	spi_nor_set_pp_settings(&nor->params->page_programs[SNOR_CMD_PP],
 				SPINOR_OP_PP_4B, SNOR_PROTO_1_1_1);
 	/*
 	 * Since xSPI Page Program opcode is backward compatible with
 	 * Legacy SPI, use Legacy SPI opcode there as well.
 	 */
 	spi_nor_set_pp_settings(&nor->params->page_programs[SNOR_CMD_PP_8_8_8_DTR],
 				SPINOR_OP_PP_4B, SNOR_PROTO_8_8_8_DTR);

 	/*
 	 * The xSPI Profile 1.0 table advertises the number of additional
 	 * address bytes needed for Read Status Register command as 0 but the
 	 * actual value for that is 4.
 	 */
 	nor->params->rdsr_addr_nbytes = 4;
 }

 static int s28hs512t_post_bfpt_fixup(struct spi_nor *nor,
 				     const struct sfdp_parameter_header *bfpt_header,
 				     const struct sfdp_bfpt *bfpt)
 {
 	/*
 	 * The BFPT table advertises a 512B page size but the page size is
 	 * actually configurable (with the default being 256B). Read from
 	 * CFR3V[4] and set the correct size.
 	 */
 	struct spi_mem_op op =
 		SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_RD_ANY_REG, 1),
 			   SPI_MEM_OP_ADDR(3, SPINOR_REG_CYPRESS_CFR3V, 1),
 			   SPI_MEM_OP_NO_DUMMY,
 			   SPI_MEM_OP_DATA_IN(1, nor->bouncebuf, 1));
 	int ret;

 	ret = spi_mem_exec_op(nor->spimem, &op);
 	if (ret)
 		return ret;

 	if (nor->bouncebuf[0] & SPINOR_REG_CYPRESS_CFR3V_PGSZ)
 		nor->params->page_size = 512;
 	else
 		nor->params->page_size = 256;

 	return 0;
 }

 static const struct spi_nor_fixups s28hs512t_fixups = {
 	.default_init = s28hs512t_default_init,
 	.post_sfdp = s28hs512t_post_sfdp_fixup,
 	.post_bfpt = s28hs512t_post_bfpt_fixup,
 };

 static int
 s25fs_s_post_bfpt_fixups(struct spi_nor *nor,
 			 const struct sfdp_parameter_header *bfpt_header,
 			 const struct sfdp_bfpt *bfpt)
 {
 	/*
 	 * The S25FS-S chip family reports 512-byte pages in BFPT but
 	 * in reality the write buffer still wraps at the safe default
 	 * of 256 bytes.  Overwrite the page size advertised by BFPT
 	 * to get the writes working.
 	 */
 	nor->params->page_size = 256;

 	return 0;
 }

 static const struct spi_nor_fixups s25fs_s_fixups = {
 	.post_bfpt = s25fs_s_post_bfpt_fixups,
 };

 static const struct flash_info spansion_parts[] = {
 	/* Spansion/Cypress -- single (large) sector size only, at least
 	 * for the chips listed here (without boot sectors).
 	 */
 	{ "s25sl032p",  INFO(0x010215, 0x4d00,  64 * 1024,  64)
 		NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "s25sl064p",  INFO(0x010216, 0x4d00,  64 * 1024, 128)
 		NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "s25fl128s0", INFO6(0x012018, 0x4d0080, 256 * 1024, 64)
 		FLAGS(USE_CLSR)
 		NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "s25fl128s1", INFO6(0x012018, 0x4d0180, 64 * 1024, 256)
 		FLAGS(USE_CLSR)
 		NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "s25fl256s0", INFO6(0x010219, 0x4d0080, 256 * 1024, 128)
 		FLAGS(USE_CLSR)
 		NO_SFDP_FLAGS(SPI_NOR_SKIP_SFDP | SPI_NOR_DUAL_READ |
 			      SPI_NOR_QUAD_READ) },
 	{ "s25fl256s1", INFO6(0x010219, 0x4d0180, 64 * 1024, 512)
 		FLAGS(USE_CLSR)
 		NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "s25fl512s",  INFO6(0x010220, 0x4d0080, 256 * 1024, 256)
 		FLAGS(SPI_NOR_HAS_LOCK | USE_CLSR)
 		NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "s25fs128s1", INFO6(0x012018, 0x4d0181, 64 * 1024, 256)
 		FLAGS(USE_CLSR)
 		NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
 		.fixups = &s25fs_s_fixups, },
 	{ "s25fs256s0", INFO6(0x010219, 0x4d0081, 256 * 1024, 128)
 		FLAGS(USE_CLSR)
 		NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "s25fs256s1", INFO6(0x010219, 0x4d0181, 64 * 1024, 512)
 		FLAGS(USE_CLSR)
 		NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "s25fs512s",  INFO6(0x010220, 0x4d0081, 256 * 1024, 256)
 		FLAGS(USE_CLSR)
 		NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
 		.fixups = &s25fs_s_fixups, },
 	{ "s25sl12800", INFO(0x012018, 0x0300, 256 * 1024,  64) },
 	{ "s25sl12801", INFO(0x012018, 0x0301,  64 * 1024, 256) },
 	{ "s25fl129p0", INFO(0x012018, 0x4d00, 256 * 1024,  64)
 		FLAGS(USE_CLSR)
 		NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "s25fl129p1", INFO(0x012018, 0x4d01,  64 * 1024, 256)
 		FLAGS(USE_CLSR)
 		NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "s25sl004a",  INFO(0x010212,      0,  64 * 1024,   8) },
 	{ "s25sl008a",  INFO(0x010213,      0,  64 * 1024,  16) },
 	{ "s25sl016a",  INFO(0x010214,      0,  64 * 1024,  32) },
 	{ "s25sl032a",  INFO(0x010215,      0,  64 * 1024,  64) },
 	{ "s25sl064a",  INFO(0x010216,      0,  64 * 1024, 128) },
 	{ "s25fl004k",  INFO(0xef4013,      0,  64 * 1024,   8)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
 			      SPI_NOR_QUAD_READ) },
 	{ "s25fl008k",  INFO(0xef4014,      0,  64 * 1024,  16)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
 			      SPI_NOR_QUAD_READ) },
 	{ "s25fl016k",  INFO(0xef4015,      0,  64 * 1024,  32)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
 			      SPI_NOR_QUAD_READ) },
 	{ "s25fl064k",  INFO(0xef4017,      0,  64 * 1024, 128)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
 			      SPI_NOR_QUAD_READ) },
 	{ "s25fl116k",  INFO(0x014015,      0,  64 * 1024,  32)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
 			      SPI_NOR_QUAD_READ) },
 	{ "s25fl132k",  INFO(0x014016,      0,  64 * 1024,  64)
 		NO_SFDP_FLAGS(SECT_4K) },
 	{ "s25fl164k",  INFO(0x014017,      0,  64 * 1024, 128)
 		NO_SFDP_FLAGS(SECT_4K) },
 	{ "s25fl204k",  INFO(0x014013,      0,  64 * 1024,   8)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ) },
 	{ "s25fl208k",  INFO(0x014014,      0,  64 * 1024,  16)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ) },
 	{ "s25fl064l",  INFO(0x016017,      0,  64 * 1024, 128)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
 		FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
 	{ "s25fl128l",  INFO(0x016018,      0,  64 * 1024, 256)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
 		FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
 	{ "s25fl256l",  INFO(0x016019,      0,  64 * 1024, 512)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
 		FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
 	{ "cy15x104q",  INFO6(0x042cc2, 0x7f7f7f, 512 * 1024, 1)
 		FLAGS(SPI_NOR_NO_ERASE) },
 	{ "s28hs512t",   INFO(0x345b1a,      0, 256 * 1024, 256)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_OCTAL_DTR_READ |
 			      SPI_NOR_OCTAL_DTR_PP)
 		.fixups = &s28hs512t_fixups,
 	},
 };

 static void spansion_late_init(struct spi_nor *nor)
 {
 	if (nor->params->size <= SZ_16M)
 		return;

 	nor->flags |= SNOR_F_4B_OPCODES;
 	/* No small sector erase for 4-byte command set */
 	nor->erase_opcode = SPINOR_OP_SE;
 	nor->mtd.erasesize = nor->info->sector_size;
 }

 static const struct spi_nor_fixups spansion_fixups = {
 	.late_init = spansion_late_init,
 };

 const struct spi_nor_manufacturer spi_nor_spansion = {
 	.name = "spansion",
 	.parts = spansion_parts,
 	.nparts = ARRAY_SIZE(spansion_parts),
 	.fixups = &spansion_fixups,
 };
	// 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"

	#define SPINOR_OP_RD_ANY_REG 0x65 /* Read any register */
	#define SPINOR_OP_WR_ANY_REG 0x71 /* Write any register */
	#define SPINOR_REG_CYPRESS_CFR2V 0x00800003
	#define SPINOR_REG_CYPRESS_CFR2V_MEMLAT_11_24 0xb
	#define SPINOR_REG_CYPRESS_CFR3V 0x00800004
	#define SPINOR_REG_CYPRESS_CFR3V_PGSZ BIT(4) /* Page size. */
	#define SPINOR_REG_CYPRESS_CFR5V 0x00800006
	#define SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_EN 0x3
	#define SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_DS 0
	#define SPINOR_OP_CYPRESS_RD_FAST 0xee

	/**
	* spi_nor_cypress_octal_dtr_enable() - Enable octal DTR on Cypress flashes.
	* @nor: pointer to a 'struct spi_nor'
	* @enable: whether to enable or disable Octal DTR
	*
	* This also sets the memory access latency cycles to 24 to allow the flash to
	* run at up to 200MHz.
	*
	* Return: 0 on success, -errno otherwise.
	*/
	static int spi_nor_cypress_octal_dtr_enable(struct spi_nor *nor, bool enable)
	{
	struct spi_mem_op op;
	u8 *buf = nor->bouncebuf;
	int ret;

	if (enable) {
	/* Use 24 dummy cycles for memory array reads. */
	ret = spi_nor_write_enable(nor);
	if (ret)
	return ret;

	*buf = SPINOR_REG_CYPRESS_CFR2V_MEMLAT_11_24;
	op = (struct spi_mem_op)
	SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WR_ANY_REG, 1),
	SPI_MEM_OP_ADDR(3, SPINOR_REG_CYPRESS_CFR2V,
	1),
	SPI_MEM_OP_NO_DUMMY,
	SPI_MEM_OP_DATA_OUT(1, buf, 1));

	ret = spi_mem_exec_op(nor->spimem, &op);
	if (ret)
	return ret;

	ret = spi_nor_wait_till_ready(nor);
	if (ret)
	return ret;

	nor->read_dummy = 24;
	}

	/* Set/unset the octal and DTR enable bits. */
	ret = spi_nor_write_enable(nor);
	if (ret)
	return ret;

	if (enable) {
	buf[0] = SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_EN;
	} else {
	/*
	* The register is 1-byte wide, but 1-byte transactions are not
	* allowed in 8D-8D-8D mode. Since there is no register at the
	* next location, just initialize the value to 0 and let the
	* transaction go on.
	*/
	buf[0] = SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_DS;
	buf[1] = 0;
	}

	op = (struct spi_mem_op)
	SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WR_ANY_REG, 1),
	SPI_MEM_OP_ADDR(enable ? 3 : 4,
	SPINOR_REG_CYPRESS_CFR5V,
	1),
	SPI_MEM_OP_NO_DUMMY,
	SPI_MEM_OP_DATA_OUT(enable ? 1 : 2, buf, 1));

	if (!enable)
	spi_nor_spimem_setup_op(nor, &op, SNOR_PROTO_8_8_8_DTR);

	ret = spi_mem_exec_op(nor->spimem, &op);
	if (ret)
	return ret;

	/* Read flash ID to make sure the switch was successful. */
	op = (struct spi_mem_op)
	SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_RDID, 1),
	SPI_MEM_OP_ADDR(enable ? 4 : 0, 0, 1),
	SPI_MEM_OP_DUMMY(enable ? 3 : 0, 1),
	SPI_MEM_OP_DATA_IN(round_up(nor->info->id_len, 2),
	buf, 1));

	if (enable)
	spi_nor_spimem_setup_op(nor, &op, SNOR_PROTO_8_8_8_DTR);

	ret = spi_mem_exec_op(nor->spimem, &op);
	if (ret)
	return ret;

	if (memcmp(buf, nor->info->id, nor->info->id_len))
	return -EINVAL;

	return 0;
	}

	static void s28hs512t_default_init(struct spi_nor *nor)
	{
	nor->params->octal_dtr_enable = spi_nor_cypress_octal_dtr_enable;
	nor->params->writesize = 16;
	}

	static void s28hs512t_post_sfdp_fixup(struct spi_nor *nor)
	{
	/*
	* On older versions of the flash the xSPI Profile 1.0 table has the
	* 8D-8D-8D Fast Read opcode as 0x00. But it actually should be 0xEE.
	*/
	if (nor->params->reads[SNOR_CMD_READ_8_8_8_DTR].opcode == 0)
	nor->params->reads[SNOR_CMD_READ_8_8_8_DTR].opcode =
	SPINOR_OP_CYPRESS_RD_FAST;

	/* This flash is also missing the 4-byte Page Program opcode bit. */
	spi_nor_set_pp_settings(&nor->params->page_programs[SNOR_CMD_PP],
	SPINOR_OP_PP_4B, SNOR_PROTO_1_1_1);
	/*
	* Since xSPI Page Program opcode is backward compatible with
	* Legacy SPI, use Legacy SPI opcode there as well.
	*/
	spi_nor_set_pp_settings(&nor->params->page_programs[SNOR_CMD_PP_8_8_8_DTR],
	SPINOR_OP_PP_4B, SNOR_PROTO_8_8_8_DTR);

	/*
	* The xSPI Profile 1.0 table advertises the number of additional
	* address bytes needed for Read Status Register command as 0 but the
	* actual value for that is 4.
	*/
	nor->params->rdsr_addr_nbytes = 4;
	}

	static int s28hs512t_post_bfpt_fixup(struct spi_nor *nor,
	const struct sfdp_parameter_header *bfpt_header,
	const struct sfdp_bfpt *bfpt)
	{
	/*
	* The BFPT table advertises a 512B page size but the page size is
	* actually configurable (with the default being 256B). Read from
	* CFR3V[4] and set the correct size.
	*/
	struct spi_mem_op op =
	SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_RD_ANY_REG, 1),
	SPI_MEM_OP_ADDR(3, SPINOR_REG_CYPRESS_CFR3V, 1),
	SPI_MEM_OP_NO_DUMMY,
	SPI_MEM_OP_DATA_IN(1, nor->bouncebuf, 1));
	int ret;

	ret = spi_mem_exec_op(nor->spimem, &op);
	if (ret)
	return ret;

	if (nor->bouncebuf[0] & SPINOR_REG_CYPRESS_CFR3V_PGSZ)
	nor->params->page_size = 512;
	else
	nor->params->page_size = 256;

	return 0;
	}

	static const struct spi_nor_fixups s28hs512t_fixups = {
	.default_init = s28hs512t_default_init,
	.post_sfdp = s28hs512t_post_sfdp_fixup,
	.post_bfpt = s28hs512t_post_bfpt_fixup,
	};

	static int
	s25fs_s_post_bfpt_fixups(struct spi_nor *nor,
	const struct sfdp_parameter_header *bfpt_header,
	const struct sfdp_bfpt *bfpt)
	{
	/*
	* The S25FS-S chip family reports 512-byte pages in BFPT but
	* in reality the write buffer still wraps at the safe default
	* of 256 bytes. Overwrite the page size advertised by BFPT
	* to get the writes working.
	*/
	nor->params->page_size = 256;

	return 0;
	}

	static const struct spi_nor_fixups s25fs_s_fixups = {
	.post_bfpt = s25fs_s_post_bfpt_fixups,
	};

	static const struct flash_info spansion_parts[] = {
	/* Spansion/Cypress -- single (large) sector size only, at least
	* for the chips listed here (without boot sectors).
	*/
	{ "s25sl032p", INFO(0x010215, 0x4d00, 64 * 1024, 64)
	NO_SFDP_FLAGS(SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ) },
	{ "s25sl064p", INFO(0x010216, 0x4d00, 64 * 1024, 128)
	NO_SFDP_FLAGS(SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ) },
	{ "s25fl128s0", INFO6(0x012018, 0x4d0080, 256 * 1024, 64)
	FLAGS(USE_CLSR)
	NO_SFDP_FLAGS(SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ) },
	{ "s25fl128s1", INFO6(0x012018, 0x4d0180, 64 * 1024, 256)
	FLAGS(USE_CLSR)
	NO_SFDP_FLAGS(SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ) },
	{ "s25fl256s0", INFO6(0x010219, 0x4d0080, 256 * 1024, 128)
	FLAGS(USE_CLSR)
	NO_SFDP_FLAGS(SPI_NOR_SKIP_SFDP \| SPI_NOR_DUAL_READ \|
	SPI_NOR_QUAD_READ) },
	{ "s25fl256s1", INFO6(0x010219, 0x4d0180, 64 * 1024, 512)
	FLAGS(USE_CLSR)
	NO_SFDP_FLAGS(SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ) },
	{ "s25fl512s", INFO6(0x010220, 0x4d0080, 256 * 1024, 256)
	FLAGS(SPI_NOR_HAS_LOCK \| USE_CLSR)
	NO_SFDP_FLAGS(SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ) },
	{ "s25fs128s1", INFO6(0x012018, 0x4d0181, 64 * 1024, 256)
	FLAGS(USE_CLSR)
	NO_SFDP_FLAGS(SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ)
	.fixups = &s25fs_s_fixups, },
	{ "s25fs256s0", INFO6(0x010219, 0x4d0081, 256 * 1024, 128)
	FLAGS(USE_CLSR)
	NO_SFDP_FLAGS(SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ) },
	{ "s25fs256s1", INFO6(0x010219, 0x4d0181, 64 * 1024, 512)
	FLAGS(USE_CLSR)
	NO_SFDP_FLAGS(SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ) },
	{ "s25fs512s", INFO6(0x010220, 0x4d0081, 256 * 1024, 256)
	FLAGS(USE_CLSR)
	NO_SFDP_FLAGS(SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ)
	.fixups = &s25fs_s_fixups, },
	{ "s25sl12800", INFO(0x012018, 0x0300, 256 * 1024, 64) },
	{ "s25sl12801", INFO(0x012018, 0x0301, 64 * 1024, 256) },
	{ "s25fl129p0", INFO(0x012018, 0x4d00, 256 * 1024, 64)
	FLAGS(USE_CLSR)
	NO_SFDP_FLAGS(SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ) },
	{ "s25fl129p1", INFO(0x012018, 0x4d01, 64 * 1024, 256)
	FLAGS(USE_CLSR)
	NO_SFDP_FLAGS(SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ) },
	{ "s25sl004a", INFO(0x010212, 0, 64 * 1024, 8) },
	{ "s25sl008a", INFO(0x010213, 0, 64 * 1024, 16) },
	{ "s25sl016a", INFO(0x010214, 0, 64 * 1024, 32) },
	{ "s25sl032a", INFO(0x010215, 0, 64 * 1024, 64) },
	{ "s25sl064a", INFO(0x010216, 0, 64 * 1024, 128) },
	{ "s25fl004k", INFO(0xef4013, 0, 64 * 1024, 8)
	NO_SFDP_FLAGS(SECT_4K \| SPI_NOR_DUAL_READ \|
	SPI_NOR_QUAD_READ) },
	{ "s25fl008k", INFO(0xef4014, 0, 64 * 1024, 16)
	NO_SFDP_FLAGS(SECT_4K \| SPI_NOR_DUAL_READ \|
	SPI_NOR_QUAD_READ) },
	{ "s25fl016k", INFO(0xef4015, 0, 64 * 1024, 32)
	NO_SFDP_FLAGS(SECT_4K \| SPI_NOR_DUAL_READ \|
	SPI_NOR_QUAD_READ) },
	{ "s25fl064k", INFO(0xef4017, 0, 64 * 1024, 128)
	NO_SFDP_FLAGS(SECT_4K \| SPI_NOR_DUAL_READ \|
	SPI_NOR_QUAD_READ) },
	{ "s25fl116k", INFO(0x014015, 0, 64 * 1024, 32)
	NO_SFDP_FLAGS(SECT_4K \| SPI_NOR_DUAL_READ \|
	SPI_NOR_QUAD_READ) },
	{ "s25fl132k", INFO(0x014016, 0, 64 * 1024, 64)
	NO_SFDP_FLAGS(SECT_4K) },
	{ "s25fl164k", INFO(0x014017, 0, 64 * 1024, 128)
	NO_SFDP_FLAGS(SECT_4K) },
	{ "s25fl204k", INFO(0x014013, 0, 64 * 1024, 8)
	NO_SFDP_FLAGS(SECT_4K \| SPI_NOR_DUAL_READ) },
	{ "s25fl208k", INFO(0x014014, 0, 64 * 1024, 16)
	NO_SFDP_FLAGS(SECT_4K \| SPI_NOR_DUAL_READ) },
	{ "s25fl064l", INFO(0x016017, 0, 64 * 1024, 128)
	NO_SFDP_FLAGS(SECT_4K \| SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ)
	FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
	{ "s25fl128l", INFO(0x016018, 0, 64 * 1024, 256)
	NO_SFDP_FLAGS(SECT_4K \| SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ)
	FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
	{ "s25fl256l", INFO(0x016019, 0, 64 * 1024, 512)
	NO_SFDP_FLAGS(SECT_4K \| SPI_NOR_DUAL_READ \| SPI_NOR_QUAD_READ)
	FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
	{ "cy15x104q", INFO6(0x042cc2, 0x7f7f7f, 512 * 1024, 1)
	FLAGS(SPI_NOR_NO_ERASE) },
	{ "s28hs512t", INFO(0x345b1a, 0, 256 * 1024, 256)
	NO_SFDP_FLAGS(SECT_4K \| SPI_NOR_OCTAL_DTR_READ \|
	SPI_NOR_OCTAL_DTR_PP)
	.fixups = &s28hs512t_fixups,
	},
	};

	static void spansion_late_init(struct spi_nor *nor)
	{
	if (nor->params->size <= SZ_16M)
	return;

	nor->flags \|= SNOR_F_4B_OPCODES;
	/* No small sector erase for 4-byte command set */
	nor->erase_opcode = SPINOR_OP_SE;
	nor->mtd.erasesize = nor->info->sector_size;
	}

	static const struct spi_nor_fixups spansion_fixups = {
	.late_init = spansion_late_init,
	};

	const struct spi_nor_manufacturer spi_nor_spansion = {
	.name = "spansion",
	.parts = spansion_parts,
	.nparts = ARRAY_SIZE(spansion_parts),
	.fixups = &spansion_fixups,
	};