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
  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
  28 static const struct spi_nor_fixups is25lp256_fixups = {
  29         .post_bfpt = is25lp256_post_bfpt_fixups,
  30 };
  31
  32 static 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
  45 static const struct spi_nor_fixups pm25lv_nor_fixups = {
  46         .late_init = pm25lv_nor_late_init,
  47 };
  48
  49 static const struct flash_info issi_nor_parts[] = {
  50         /* ISSI */
  51         { "is25cd512",  INFO(0x7f9d20, 0, 32 * 1024,   2)
  52                 NO_SFDP_FLAGS(SECT_4K) },
  53         { "is25lq040b", INFO(0x9d4013, 0, 64 * 1024,   8)
  54                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
  55         { "is25lp016d", INFO(0x9d6015, 0, 64 * 1024,  32)
  56                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
  57         { "is25lp080d", INFO(0x9d6014, 0, 64 * 1024,  16)
  58                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
  59         { "is25lp032",  INFO(0x9d6016, 0, 64 * 1024,  64)
  60                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ) },
  61         { "is25lp064",  INFO(0x9d6017, 0, 64 * 1024, 128)
  62                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ) },
  63         { "is25lp128",  INFO(0x9d6018, 0, 64 * 1024, 256)
  64                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ) },
  65         { "is25lp256",  INFO(0x9d6019, 0, 64 * 1024, 512)
  66                 PARSE_SFDP
  67                 FIXUP_FLAGS(SPI_NOR_4B_OPCODES)
  68                 .fixups = &is25lp256_fixups },
  69         { "is25wp032",  INFO(0x9d7016, 0, 64 * 1024,  64)
  70                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
  71         { "is25wp064",  INFO(0x9d7017, 0, 64 * 1024, 128)
  72                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
  73         { "is25wp128",  INFO(0x9d7018, 0, 64 * 1024, 256)
  74                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
  75         { "is25wp256", INFO(0x9d7019, 0, 0, 0)
  76                 PARSE_SFDP
  77                 FIXUP_FLAGS(SPI_NOR_4B_OPCODES)
  78                 FLAGS(SPI_NOR_QUAD_PP)
  79                 .fixups = &is25lp256_fixups },
  80
  81         /* PMC */
  82         { "pm25lv512",   INFO(0,        0, 32 * 1024,    2)
  83                 NO_SFDP_FLAGS(SECT_4K)
  84                 .fixups = &pm25lv_nor_fixups
  85         },
  86         { "pm25lv010",   INFO(0,        0, 32 * 1024,    4)
  87                 NO_SFDP_FLAGS(SECT_4K)
  88                 .fixups = &pm25lv_nor_fixups
  89         },
  90         { "pm25lq032",   INFO(0x7f9d46, 0, 64 * 1024,   64)
  91                 NO_SFDP_FLAGS(SECT_4K) },
  92 };
  93
  94 static void issi_nor_default_init(struct spi_nor *nor)
  95 {
  96         nor->params->quad_enable = spi_nor_sr1_bit6_quad_enable;
  97 }
  98
  99 static const struct spi_nor_fixups issi_fixups = {
 100         .default_init = issi_nor_default_init,
 101 };
 102
 103 const struct spi_nor_manufacturer spi_nor_issi = {
 104         .name = "issi",
 105         .parts = issi_nor_parts,
 106         .nparts = ARRAY_SIZE(issi_nor_parts),
 107         .fixups = &issi_fixups,
 108 };