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/*
* 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.
*/
/*
* Driver for Adesto Technologies SPI flash
* based on winbond.c
*/
#include <console/console.h>
#include <commonlib/helpers.h>
#include <string.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,
};
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