drivers/mtd/spi-nor/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
  11 static int
  12 is25lp256_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 a
  18          * BFPT_DWORD1_ADDRESS_BYTES_3_ONLY address width.
  19          * Overwrite the address width advertised by the BFPT.
  20          */
  21         if ((bfpt->dwords[BFPT_DWORD(1)] & BFPT_DWORD1_ADDRESS_BYTES_MASK) ==
  22                 BFPT_DWORD1_ADDRESS_BYTES_3_ONLY)
  23                 nor->addr_width = 4;
  24
  25         return 0;
  26 }
  27
  28 static struct spi_nor_fixups is25lp256_fixups = {
  29         .post_bfpt = is25lp256_post_bfpt_fixups,
  30 };
  31
  32 static const struct flash_info issi_parts[] = {
  33         /* ISSI */
  34         { "is25cd512",  INFO(0x7f9d20, 0, 32 * 1024,   2)
  35                 NO_SFDP_FLAGS(SECT_4K) },
  36         { "is25lq040b", INFO(0x9d4013, 0, 64 * 1024,   8)
  37                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
  38         { "is25lp016d", INFO(0x9d6015, 0, 64 * 1024,  32)
  39                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
  40         { "is25lp080d", INFO(0x9d6014, 0, 64 * 1024,  16)
  41                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
  42         { "is25lp032",  INFO(0x9d6016, 0, 64 * 1024,  64)
  43                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ) },
  44         { "is25lp064",  INFO(0x9d6017, 0, 64 * 1024, 128)
  45                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ) },
  46         { "is25lp128",  INFO(0x9d6018, 0, 64 * 1024, 256)
  47                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ) },
  48         { "is25lp256",  INFO(0x9d6019, 0, 64 * 1024, 512)
  49                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
  50                 FIXUP_FLAGS(SPI_NOR_4B_OPCODES)
  51                 .fixups = &is25lp256_fixups },
  52         { "is25wp032",  INFO(0x9d7016, 0, 64 * 1024,  64)
  53                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
  54         { "is25wp064",  INFO(0x9d7017, 0, 64 * 1024, 128)
  55                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
  56         { "is25wp128",  INFO(0x9d7018, 0, 64 * 1024, 256)
  57                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
  58         { "is25wp256", INFO(0x9d7019, 0, 64 * 1024, 512)
  59                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
  60                 FIXUP_FLAGS(SPI_NOR_4B_OPCODES)
  61                 .fixups = &is25lp256_fixups },
  62
  63         /* PMC */
  64         { "pm25lv512",   INFO(0,        0, 32 * 1024,    2)
  65                 NO_SFDP_FLAGS(SECT_4K_PMC) },
  66         { "pm25lv010",   INFO(0,        0, 32 * 1024,    4)
  67                 NO_SFDP_FLAGS(SECT_4K_PMC) },
  68         { "pm25lq032",   INFO(0x7f9d46, 0, 64 * 1024,   64)
  69                 NO_SFDP_FLAGS(SECT_4K) },
  70 };
  71
  72 static void issi_default_init(struct spi_nor *nor)
  73 {
  74         nor->params->quad_enable = spi_nor_sr1_bit6_quad_enable;
  75 }
  76
  77 static const struct spi_nor_fixups issi_fixups = {
  78         .default_init = issi_default_init,
  79 };
  80
  81 const struct spi_nor_manufacturer spi_nor_issi = {
  82         .name = "issi",
  83         .parts = issi_parts,
  84         .nparts = ARRAY_SIZE(issi_parts),
  85         .fixups = &issi_fixups,
  86 };