drivers/mtd/spi/spansion.c

   1 /*
   2  * Copyright (C) 2009 Freescale Semiconductor, Inc.
   3  *
   4  * Author: Mingkai Hu (Mingkai.hu@freescale.com)
   5  * Based on stmicro.c by Wolfgang Denk (wd@denx.de),
   6  * TsiChung Liew (Tsi-Chung.Liew@freescale.com),
   7  * and  Jason McMullan (mcmullan@netapp.com)
   8  *
   9  * SPDX-License-Identifier:     GPL-2.0+
  10  */
  11
  12 #include <common.h>
  13 #include <malloc.h>
  14 #include <spi_flash.h>
  15
  16 #include "spi_flash_internal.h"
  17
  18 struct spansion_spi_flash_params {
  19         u16 idcode1;
  20         u16 idcode2;
  21         u16 pages_per_sector;
  22         u16 nr_sectors;
  23         const char *name;
  24 };
  25
  26 static const struct spansion_spi_flash_params spansion_spi_flash_table[] = {
  27         {
  28                 .idcode1 = 0x0213,
  29                 .idcode2 = 0,
  30                 .pages_per_sector = 256,
  31                 .nr_sectors = 16,
  32                 .name = "S25FL008A",
  33         },
  34         {
  35                 .idcode1 = 0x0214,
  36                 .idcode2 = 0,
  37                 .pages_per_sector = 256,
  38                 .nr_sectors = 32,
  39                 .name = "S25FL016A",
  40         },
  41         {
  42                 .idcode1 = 0x0215,
  43                 .idcode2 = 0,
  44                 .pages_per_sector = 256,
  45                 .nr_sectors = 64,
  46                 .name = "S25FL032A",
  47         },
  48         {
  49                 .idcode1 = 0x0216,
  50                 .idcode2 = 0,
  51                 .pages_per_sector = 256,
  52                 .nr_sectors = 128,
  53                 .name = "S25FL064A",
  54         },
  55         {
  56                 .idcode1 = 0x2018,
  57                 .idcode2 = 0x0301,
  58                 .pages_per_sector = 256,
  59                 .nr_sectors = 256,
  60                 .name = "S25FL128P_64K",
  61         },
  62         {
  63                 .idcode1 = 0x2018,
  64                 .idcode2 = 0x0300,
  65                 .pages_per_sector = 1024,
  66                 .nr_sectors = 64,
  67                 .name = "S25FL128P_256K",
  68         },
  69         {
  70                 .idcode1 = 0x0215,
  71                 .idcode2 = 0x4d00,
  72                 .pages_per_sector = 256,
  73                 .nr_sectors = 64,
  74                 .name = "S25FL032P",
  75         },
  76         {
  77                 .idcode1 = 0x0216,
  78                 .idcode2 = 0x4d00,
  79                 .pages_per_sector = 256,
  80                 .nr_sectors = 128,
  81                 .name = "S25FL064P",
  82         },
  83         {
  84                 .idcode1 = 0x2018,
  85                 .idcode2 = 0x4d01,
  86                 .pages_per_sector = 256,
  87                 .nr_sectors = 256,
  88                 .name = "S25FL129P_64K/S25FL128S_64K",
  89         },
  90         {
  91                 .idcode1 = 0x0219,
  92                 .idcode2 = 0x4d01,
  93                 .pages_per_sector = 256,
  94                 .nr_sectors = 512,
  95                 .name = "S25FL256S_64K",
  96         },
  97         {
  98                 .idcode1 = 0x0220,
  99                 .idcode2 = 0x4d01,
 100                 .pages_per_sector = 256,
 101                 .nr_sectors = 1024,
 102                 .name = "S25FL512S_64K",
 103         },
 104 };
 105
 106 struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
 107 {
 108         const struct spansion_spi_flash_params *params;
 109         struct spi_flash *flash;
 110         unsigned int i;
 111         unsigned short jedec, ext_jedec;
 112
 113         jedec = idcode[1] << 8 | idcode[2];
 114         ext_jedec = idcode[3] << 8 | idcode[4];
 115
 116         for (i = 0; i < ARRAY_SIZE(spansion_spi_flash_table); i++) {
 117                 params = &spansion_spi_flash_table[i];
 118                 if (params->idcode1 == jedec) {
 119                         if (params->idcode2 == ext_jedec)
 120                                 break;
 121                 }
 122         }
 123
 124         if (i == ARRAY_SIZE(spansion_spi_flash_table)) {
 125                 debug("SF: Unsupported SPANSION ID %04x %04x\n",
 126                       jedec, ext_jedec);
 127                 return NULL;
 128         }
 129
 130         flash = spi_flash_alloc_base(spi, params->name);
 131         if (!flash) {
 132                 debug("SF: Failed to allocate memory\n");
 133                 return NULL;
 134         }
 135
 136         flash->page_size = 256;
 137         flash->sector_size = 256 * params->pages_per_sector;
 138         flash->size = flash->sector_size * params->nr_sectors;
 139
 140         return flash;
 141 }