| /* |
| * This file is part of the coreboot project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #include <console/console.h> |
| #include <commonlib/helpers.h> |
| #include <spi_flash.h> |
| #include <spi-generic.h> |
| #include <string.h> |
| |
| #include "spi_flash_internal.h" |
| |
| /* M25Pxx-specific commands */ |
| #define CMD_AT25_WREN 0x06 /* Write Enable */ |
| #define CMD_AT25_WRDI 0x04 /* Write Disable */ |
| #define CMD_AT25_RDSR 0x05 /* Read Status Register */ |
| #define CMD_AT25_WRSR 0x01 /* Write Status Register */ |
| #define CMD_AT25_READ 0x03 /* Read Data Bytes */ |
| #define CMD_AT25_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */ |
| #define CMD_AT25_PP 0x02 /* Page Program */ |
| #define CMD_AT25_SE 0x20 /* Sector (4K) Erase */ |
| #define CMD_AT25_BE 0xd8 /* Block (64K) Erase */ |
| #define CMD_AT25_CE 0xc7 /* Chip Erase */ |
| #define CMD_AT25_DP 0xb9 /* Deep Power-down */ |
| #define CMD_AT25_RES 0xab /* Release from DP, and Read Signature */ |
| |
| static const struct spi_flash_part_id flash_table[] = { |
| { |
| /* AT25X16 */ |
| .id[0] = 0x3015, |
| .nr_sectors_shift = 9, |
| }, |
| { |
| /* AT25DF32 */ |
| .id[0] = 0x47, |
| .nr_sectors_shift = 10, |
| }, |
| { |
| /* AT25X64 */ |
| .id[0] = 0x3017, |
| .nr_sectors_shift = 11, |
| }, |
| { |
| /* AT25Q16 */ |
| .id[0] = 0x4015, |
| .nr_sectors_shift = 9, |
| }, |
| { |
| /* AT25Q32 */ |
| .id[0] = 0x4016, |
| .nr_sectors_shift = 10, |
| }, |
| { |
| /* AT25Q64 */ |
| .id[0] = 0x4017, |
| .nr_sectors_shift = 11, |
| }, |
| { |
| /* AT25Q128 */ |
| .id[0] = 0x4018, |
| .nr_sectors_shift = 12, |
| }, |
| }; |
| |
| const struct spi_flash_vendor_info spi_flash_atmel_vi = { |
| .id = VENDOR_ID_ATMEL, |
| .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, |
| }; |