| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| /* |
| * Driver for Adesto Technologies SPI flash |
| * based on winbond.c |
| */ |
| |
| #include <commonlib/helpers.h> |
| #include <spi_flash.h> |
| #include <spi-generic.h> |
| |
| #include "spi_flash_internal.h" |
| |
| /* at25dfxx-specific commands */ |
| #define CMD_AT25DF_WREN 0x06 /* Write Enable */ |
| #define CMD_AT25DF_WRDI 0x04 /* Write Disable */ |
| #define CMD_AT25DF_RDSR 0x05 /* Read Status Register */ |
| #define CMD_AT25DF_WRSR 0x01 /* Write Status Register */ |
| #define CMD_AT25DF_READ 0x03 /* Read Data Bytes */ |
| #define CMD_AT25DF_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */ |
| #define CMD_AT25DF_PP 0x02 /* Page Program */ |
| #define CMD_AT25DF_SE 0x20 /* Sector (4K) Erase */ |
| #define CMD_AT25DF_BE 0xd8 /* Block (64K) Erase */ |
| #define CMD_AT25DF_CE 0xc7 /* Chip Erase */ |
| #define CMD_AT25DF_DP 0xb9 /* Deep Power-down */ |
| #define CMD_AT25DF_RES 0xab /* Release from DP, and Read Signature */ |
| |
| static const struct spi_flash_part_id flash_table[] = { |
| { |
| /* AT25SL128A */ |
| .id[0] = 0x4218, |
| .nr_sectors_shift = 12, |
| }, |
| { |
| /* AT25DF081A Yes, 81A id < 81 */ |
| .id[0] = 0x4501, |
| .nr_sectors_shift = 8, |
| }, |
| { |
| /* AT25DF081 */ |
| .id[0] = 0x4502, |
| .nr_sectors_shift = 8, |
| }, |
| { |
| /* AT25DF161 */ |
| .id[0] = 0x4602, |
| .nr_sectors_shift = 9, |
| }, |
| { |
| /* AT25DL161 */ |
| .id[0] = 0x4603, |
| .nr_sectors_shift = 9, |
| }, |
| { |
| /* AT25DF321 */ |
| .id[0] = 0x4700, |
| .nr_sectors_shift = 10, |
| }, |
| { |
| /* AT25DF321A */ |
| .id[0] = 0x4701, |
| .nr_sectors_shift = 10, |
| }, |
| { |
| /* AT25DF641 */ |
| .id[0] = 0x4800, |
| .nr_sectors_shift = 11, |
| }, |
| { |
| /* AT25SF081 */ |
| .id[0] = 0x8501, |
| .nr_sectors_shift = 8, |
| }, |
| { |
| /* AT25DQ161 */ |
| .id[0] = 0x8600, |
| .nr_sectors_shift = 9, |
| }, |
| { |
| /* AT25SF161 */ |
| .id[0] = 0x8601, |
| .nr_sectors_shift = 9, |
| }, |
| { |
| /* AT25DQ321 */ |
| .id[0] = 0x8700, |
| .nr_sectors_shift = 10, |
| }, |
| }; |
| |
| const struct spi_flash_vendor_info spi_flash_adesto_vi = { |
| .id = VENDOR_ID_ADESTO, |
| .page_size_shift = 8, |
| .sector_size_kib_shift = 2, |
| .match_id_mask[0] = 0xffff, |
| .ids = flash_table, |
| .nr_part_ids = ARRAY_SIZE(flash_table), |
| .desc = &spi_flash_pp_0x20_sector_desc, |
| }; |