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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.
*/
#include <console/console.h>
#include <commonlib/helpers.h>
#include <spi_flash.h>
#include <spi-generic.h>
#include <string.h>
#include "spi_flash_internal.h"
/* S25FLxx-specific commands */
#define CMD_S25FLXX_READ 0x03 /* Read Data Bytes */
#define CMD_S25FLXX_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */
#define CMD_S25FLXX_READID 0x90 /* Read Manufacture ID and Device ID */
#define CMD_S25FLXX_WREN 0x06 /* Write Enable */
#define CMD_S25FLXX_WRDI 0x04 /* Write Disable */
#define CMD_S25FLXX_RDSR 0x05 /* Read Status Register */
#define CMD_S25FLXX_WRSR 0x01 /* Write Status Register */
#define CMD_S25FLXX_PP 0x02 /* Page Program */
#define CMD_S25FLXX_SE 0xd8 /* Sector Erase */
#define CMD_S25FLXX_BE 0xc7 /* Bulk Erase */
#define CMD_S25FLXX_DP 0xb9 /* Deep Power-down */
#define CMD_S25FLXX_RES 0xab /* Release from DP, and Read Signature */
#define SPSN_MANUFACTURER_ID_S25FL_K 0x01
#define SPSN_ID_S25FL008A 0x0213
#define SPSN_ID_S25FL016A 0x0214
#define SPSN_ID_S25FL032A 0x0215
#define SPSN_ID_S25FL064A 0x0216
#define SPSN_ID_S25FL128S 0x0219
#define SPSN_ID_S25FL128P 0x2018
#define SPSN_ID_S25FL208K 0x4014
#define SPSN_ID_S25FL116K 0x4015
#define SPSN_ID_S25FL132K 0x4016
#define SPSN_ID_S25FL164K 0x4017
#define SPSN_EXT_ID_S25FL128P_256KB 0x0300
#define SPSN_EXT_ID_S25FL128P_64KB 0x0301
#define SPSN_EXT_ID_S25FL032P 0x4d00
#define SPSN_EXT_ID_S25FLXXS_64KB 0x4d01
struct spansion_spi_flash_params {
u8 idcode0;
u16 idcode1;
u16 idcode2;
int (*identify) (const struct spansion_spi_flash_params *params,
u8 *idcode);
u16 page_size;
u16 pages_per_sector;
u16 nr_sectors;
const char *name;
};
/*
* returns non-zero if the given idcode matches the ID of the chip. this is for
* chips which use 2nd, 3rd, 4th, and 5th byte.
*/
static int identify_2345(const struct spansion_spi_flash_params *params,
u8 *idcode)
{
u16 jedec = idcode[1] << 8 | idcode[2];
u16 ext_jedec = idcode[3] << 8 | idcode[4];
return (params->idcode1 == jedec) && (params->idcode2 == ext_jedec);
}
/*
* returns non-zero if the given idcode matches the ID of the chip. this is for
* chips which use 1st, 2nd, and 3rd byte.
*/
static int identify_123(const struct spansion_spi_flash_params *params,
u8 *idcode)
{
u16 jedec = idcode[1] << 8 | idcode[2];
return (params->idcode0 == idcode[0]) && (params->idcode1 == jedec);
}
static const struct spansion_spi_flash_params spansion_spi_flash_table[] = {
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL008A,
.idcode2 = 0,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 16,
.name = "S25FL008A",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL016A,
.idcode2 = 0,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 32,
.name = "S25FL016A",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL032A,
.idcode2 = 0,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 64,
.name = "S25FL032A",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL064A,
.idcode2 = 0,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 128,
.name = "S25FL064A",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL128P,
.idcode2 = SPSN_EXT_ID_S25FL128P_64KB,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 256,
.name = "S25FL128P_64K",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL128P,
.idcode2 = SPSN_EXT_ID_S25FL128P_256KB,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 1024,
.nr_sectors = 64,
.name = "S25FL128P_256K",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL128S,
.idcode2 = SPSN_EXT_ID_S25FLXXS_64KB,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 512,
.name = "S25FL128S_256K",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL032A,
.idcode2 = SPSN_EXT_ID_S25FL032P,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 64,
.name = "S25FL032P",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL128P,
.idcode2 = SPSN_EXT_ID_S25FLXXS_64KB,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 256,
.name = "S25FS128S",
},
{
.idcode0 = SPSN_MANUFACTURER_ID_S25FL_K,
.idcode1 = SPSN_ID_S25FL208K,
.idcode2 = 0,
.identify = identify_123,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 16,
.name = "S25FL208K",
},
{
.idcode0 = SPSN_MANUFACTURER_ID_S25FL_K,
.idcode1 = SPSN_ID_S25FL116K,
.idcode2 = 0,
.identify = identify_123,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 32,
.name = "S25FL116K_16M",
},
{
.idcode0 = SPSN_MANUFACTURER_ID_S25FL_K,
.idcode1 = SPSN_ID_S25FL132K,
.idcode2 = 0,
.identify = identify_123,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 64,
.name = "S25FL132K",
},
{
.idcode0 = SPSN_MANUFACTURER_ID_S25FL_K,
.idcode1 = SPSN_ID_S25FL164K,
.idcode2 = 0,
.identify = identify_123,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 128,
.name = "S25FL164K",
},
};
static const struct spi_flash_ops spi_flash_ops = {
.read = spi_flash_cmd_read,
.write = spi_flash_cmd_write_page_program,
.erase = spi_flash_cmd_erase,
.status = spi_flash_cmd_status,
};
int spi_flash_probe_spansion(const struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash)
{
const struct spansion_spi_flash_params *params;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(spansion_spi_flash_table); i++) {
params = &spansion_spi_flash_table[i];
if (params->identify(params, idcode))
break;
}
if (i == ARRAY_SIZE(spansion_spi_flash_table)) {
printk(BIOS_WARNING,
"SF: Unsupported SPANSION ID %02x %02x %02x %02x %02x\n",
idcode[0], idcode[1], idcode[2], idcode[3], idcode[4]);
return -1;
}
memcpy(&flash->spi, spi, sizeof(*spi));
flash->name = params->name;
flash->page_size = params->page_size;
flash->sector_size = params->page_size * params->pages_per_sector;
flash->size = flash->sector_size * params->nr_sectors;
flash->erase_cmd = CMD_S25FLXX_SE;
flash->status_cmd = CMD_S25FLXX_RDSR;
flash->pp_cmd = CMD_S25FLXX_PP;
flash->wren_cmd = CMD_S25FLXX_WREN;
flash->ops = &spi_flash_ops;
return 0;
}