/* 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, };