src/drivers/spi/atmel.c

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 #include <commonlib/helpers.h>
   4 #include <spi_flash.h>
   5 #include <spi-generic.h>
   6
   7 #include "spi_flash_internal.h"
   8
   9 /* M25Pxx-specific commands */
  10 #define CMD_AT25_WREN           0x06    /* Write Enable */
  11 #define CMD_AT25_WRDI           0x04    /* Write Disable */
  12 #define CMD_AT25_RDSR           0x05    /* Read Status Register */
  13 #define CMD_AT25_WRSR           0x01    /* Write Status Register */
  14 #define CMD_AT25_READ           0x03    /* Read Data Bytes */
  15 #define CMD_AT25_FAST_READ      0x0b    /* Read Data Bytes at Higher Speed */
  16 #define CMD_AT25_PP                     0x02    /* Page Program */
  17 #define CMD_AT25_SE                     0x20    /* Sector (4K) Erase */
  18 #define CMD_AT25_BE                     0xd8    /* Block (64K) Erase */
  19 #define CMD_AT25_CE                     0xc7    /* Chip Erase */
  20 #define CMD_AT25_DP                     0xb9    /* Deep Power-down */
  21 #define CMD_AT25_RES            0xab    /* Release from DP, and Read Signature */
  22
  23 static const struct spi_flash_part_id flash_table[] = {
  24         {
  25                 /* AT25X16 */
  26                 .id[0]                  = 0x3015,
  27                 .nr_sectors_shift       = 9,
  28         },
  29         {
  30                 /* AT25DF32 */
  31                 .id[0]                  = 0x47,
  32                 .nr_sectors_shift       = 10,
  33         },
  34         {
  35                 /* AT25X64 */
  36                 .id[0]                  = 0x3017,
  37                 .nr_sectors_shift       = 11,
  38         },
  39         {
  40                 /* AT25Q16 */
  41                 .id[0]                  = 0x4015,
  42                 .nr_sectors_shift       = 9,
  43         },
  44         {
  45                 /* AT25Q32 */
  46                 .id[0]                  = 0x4016,
  47                 .nr_sectors_shift       = 10,
  48         },
  49         {
  50                 /* AT25Q64 */
  51                 .id[0]                  = 0x4017,
  52                 .nr_sectors_shift       = 11,
  53         },
  54         {
  55                 /* AT25Q128 */
  56                 .id[0]                  = 0x4018,
  57                 .nr_sectors_shift       = 12,
  58         },
  59 };
  60
  61 const struct spi_flash_vendor_info spi_flash_atmel_vi = {
  62         .id = VENDOR_ID_ATMEL,
  63         .page_size_shift = 8,
  64         .sector_size_kib_shift = 2,
  65         .match_id_mask[0] = 0xffff,
  66         .ids = flash_table,
  67         .nr_part_ids = ARRAY_SIZE(flash_table),
  68         .desc = &spi_flash_pp_0x20_sector_desc,
  69 };