src/drivers/spi/adesto.c

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 /*
   4  * Driver for Adesto Technologies SPI flash
   5  * based on winbond.c
   6  */
   7
   8 #include <commonlib/helpers.h>
   9 #include <spi_flash.h>
  10 #include <spi-generic.h>
  11
  12 #include "spi_flash_internal.h"
  13
  14 /* at25dfxx-specific commands */
  15 #define CMD_AT25DF_WREN         0x06    /* Write Enable */
  16 #define CMD_AT25DF_WRDI         0x04    /* Write Disable */
  17 #define CMD_AT25DF_RDSR         0x05    /* Read Status Register */
  18 #define CMD_AT25DF_WRSR         0x01    /* Write Status Register */
  19 #define CMD_AT25DF_READ         0x03    /* Read Data Bytes */
  20 #define CMD_AT25DF_FAST_READ    0x0b    /* Read Data Bytes at Higher Speed */
  21 #define CMD_AT25DF_PP           0x02    /* Page Program */
  22 #define CMD_AT25DF_SE           0x20    /* Sector (4K) Erase */
  23 #define CMD_AT25DF_BE           0xd8    /* Block (64K) Erase */
  24 #define CMD_AT25DF_CE           0xc7    /* Chip Erase */
  25 #define CMD_AT25DF_DP           0xb9    /* Deep Power-down */
  26 #define CMD_AT25DF_RES          0xab    /* Release from DP, and Read Signature */
  27
  28 static const struct spi_flash_part_id flash_table[] = {
  29         {
  30                 /* AT25SL128A */
  31                 .id[0]                  = 0x4218,
  32                 .nr_sectors_shift       = 12,
  33         },
  34         {
  35                 /* AT25DF081A Yes, 81A id < 81 */
  36                 .id[0]                  = 0x4501,
  37                 .nr_sectors_shift       = 8,
  38         },
  39         {
  40                 /* AT25DF081 */
  41                 .id[0]                  = 0x4502,
  42                 .nr_sectors_shift       = 8,
  43         },
  44         {
  45                 /* AT25DF161 */
  46                 .id[0]                  = 0x4602,
  47                 .nr_sectors_shift       = 9,
  48         },
  49         {
  50                 /* AT25DL161 */
  51                 .id[0]                  = 0x4603,
  52                 .nr_sectors_shift       = 9,
  53         },
  54         {
  55                 /* AT25DF321 */
  56                 .id[0]                  = 0x4700,
  57                 .nr_sectors_shift       = 10,
  58         },
  59         {
  60                 /* AT25DF321A */
  61                 .id[0]                  = 0x4701,
  62                 .nr_sectors_shift       = 10,
  63         },
  64         {
  65                 /* AT25DF641 */
  66                 .id[0]                  = 0x4800,
  67                 .nr_sectors_shift       = 11,
  68         },
  69         {
  70                 /* AT25SF081 */
  71                 .id[0]                  = 0x8501,
  72                 .nr_sectors_shift       = 8,
  73         },
  74         {
  75                 /* AT25DQ161 */
  76                 .id[0]                  = 0x8600,
  77                 .nr_sectors_shift       = 9,
  78         },
  79         {
  80                 /* AT25SF161 */
  81                 .id[0]                  = 0x8601,
  82                 .nr_sectors_shift       = 9,
  83         },
  84         {
  85                 /* AT25DQ321 */
  86                 .id[0]                  = 0x8700,
  87                 .nr_sectors_shift       = 10,
  88         },
  89 };
  90
  91 const struct spi_flash_vendor_info spi_flash_adesto_vi = {
  92         .id = VENDOR_ID_ADESTO,
  93         .page_size_shift = 8,
  94         .sector_size_kib_shift = 2,
  95         .match_id_mask[0] = 0xffff,
  96         .ids = flash_table,
  97         .nr_part_ids = ARRAY_SIZE(flash_table),
  98         .desc = &spi_flash_pp_0x20_sector_desc,
  99 };