issi.c

  1// SPDX-License-Identifier: GPL-2.0
  2/*
  3 * Copyright (C) 2005, Intec Automation Inc.
  4 * Copyright (C) 2014, Freescale Semiconductor, Inc.
  5 */
  6
  7#include <linux/mtd/spi-nor.h>
  8
  9#include "core.h"
 10
 11static int
 12is25lp256_post_bfpt_fixups(struct spi_nor *nor,
 13			   const struct sfdp_parameter_header *bfpt_header,
 14			   const struct sfdp_bfpt *bfpt)
 15{
 16	/*
 17	 * IS25LP256 supports 4B opcodes, but the BFPT advertises
 18	 * BFPT_DWORD1_ADDRESS_BYTES_3_ONLY.
 19	 * Overwrite the number of address bytes advertised by the BFPT.
 20	 */
 21	if ((bfpt->dwords[SFDP_DWORD(1)] & BFPT_DWORD1_ADDRESS_BYTES_MASK) ==
 22		BFPT_DWORD1_ADDRESS_BYTES_3_ONLY)
 23		nor->params->addr_nbytes = 4;
 24
 25	return 0;
 26}
 27
 28static const struct spi_nor_fixups is25lp256_fixups = {
 29	.post_bfpt = is25lp256_post_bfpt_fixups,
 30};
 31
 32static int pm25lv_nor_late_init(struct spi_nor *nor)
 33{
 34	struct spi_nor_erase_map *map = &nor->params->erase_map;
 35	int i;
 36
 37	/* The PM25LV series has a different 4k sector erase opcode */
 38	for (i = 0; i < SNOR_ERASE_TYPE_MAX; i++)
 39		if (map->erase_type[i].size == 4096)
 40			map->erase_type[i].opcode = SPINOR_OP_BE_4K_PMC;
 41
 42	return 0;
 43}
 44
 45static const struct spi_nor_fixups pm25lv_nor_fixups = {
 46	.late_init = pm25lv_nor_late_init,
 47};
 48
 49static const struct flash_info issi_nor_parts[] = {
 50	{
 51		.name = "pm25lv512",
 52		.sector_size = SZ_32K,
 53		.size = SZ_64K,
 54		.no_sfdp_flags = SECT_4K,
 55		.fixups = &pm25lv_nor_fixups
 56	}, {
 57		.name = "pm25lv010",
 58		.sector_size = SZ_32K,
 59		.size = SZ_128K,
 60		.no_sfdp_flags = SECT_4K,
 61		.fixups = &pm25lv_nor_fixups
 62	}, {
 63		.id = SNOR_ID(0x7f, 0x9d, 0x20),
 64		.name = "is25cd512",
 65		.sector_size = SZ_32K,
 66		.size = SZ_64K,
 67		.no_sfdp_flags = SECT_4K,
 68	}, {
 69		.id = SNOR_ID(0x7f, 0x9d, 0x46),
 70		.name = "pm25lq032",
 71		.size = SZ_4M,
 72		.no_sfdp_flags = SECT_4K,
 73	}, {
 74		.id = SNOR_ID(0x9d, 0x40, 0x13),
 75		.name = "is25lq040b",
 76		.size = SZ_512K,
 77		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
 78	}, {
 79		.id = SNOR_ID(0x9d, 0x60, 0x14),
 80		.name = "is25lp080d",
 81		.size = SZ_1M,
 82		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
 83	}, {
 84		.id = SNOR_ID(0x9d, 0x60, 0x15),
 85		.name = "is25lp016d",
 86		.size = SZ_2M,
 87		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
 88	}, {
 89		.id = SNOR_ID(0x9d, 0x60, 0x16),
 90		.name = "is25lp032",
 91		.size = SZ_4M,
 92		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ,
 93	}, {
 94		.id = SNOR_ID(0x9d, 0x60, 0x17),
 95		.name = "is25lp064",
 96		.size = SZ_8M,
 97		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ,
 98	}, {
 99		.id = SNOR_ID(0x9d, 0x60, 0x18),
100		.name = "is25lp128",
101		.size = SZ_16M,
102		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ,
103	}, {
104		.id = SNOR_ID(0x9d, 0x60, 0x19),
105		.name = "is25lp256",
106		.fixups = &is25lp256_fixups,
107		.fixup_flags = SPI_NOR_4B_OPCODES,
108	}, {
109		.id = SNOR_ID(0x9d, 0x70, 0x16),
110		.name = "is25wp032",
111		.size = SZ_4M,
112		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
113	}, {
114		.id = SNOR_ID(0x9d, 0x70, 0x17),
115		.size = SZ_8M,
116		.name = "is25wp064",
117		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
118	}, {
119		.id = SNOR_ID(0x9d, 0x70, 0x18),
120		.name = "is25wp128",
121		.size = SZ_16M,
122		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
123	}, {
124		.id = SNOR_ID(0x9d, 0x70, 0x19),
125		.name = "is25wp256",
126		.flags = SPI_NOR_QUAD_PP,
127		.fixups = &is25lp256_fixups,
128		.fixup_flags = SPI_NOR_4B_OPCODES,
129	}
130};
131
132static void issi_nor_default_init(struct spi_nor *nor)
133{
134	nor->params->quad_enable = spi_nor_sr1_bit6_quad_enable;
135}
136
137static const struct spi_nor_fixups issi_fixups = {
138	.default_init = issi_nor_default_init,
139};
140
141const struct spi_nor_manufacturer spi_nor_issi = {
142	.name = "issi",
143	.parts = issi_nor_parts,
144	.nparts = ARRAY_SIZE(issi_nor_parts),
145	.fixups = &issi_fixups,
146};