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/*
* Copyright (C) 2009 Freescale Semiconductor, Inc.
*
* Author: Mingkai Hu (Mingkai.hu@freescale.com)
* Based on stmicro.c by Wolfgang Denk (wd@denx.de),
* TsiChung Liew (Tsi-Chung.Liew@freescale.com),
* and Jason McMullan (mcmullan@netapp.com)
*
* See file CREDITS for list of people who contributed to this
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <malloc.h>
#include <spi_flash.h>
#include "spi_flash_internal.h"
/* S25FLxx-specific commands */
#define CMD_S25FLXX_SE 0xd8 /* Sector Erase */
#define CMD_S25FLXX_BE 0xc7 /* Bulk Erase */
struct spansion_spi_flash_params {
u16 idcode1;
u16 idcode2;
u16 pages_per_sector;
u16 nr_sectors;
const char *name;
};
static const struct spansion_spi_flash_params spansion_spi_flash_table[] = {
{
.idcode1 = 0x0213,
.idcode2 = 0,
.pages_per_sector = 256,
.nr_sectors = 16,
.name = "S25FL008A",
},
{
.idcode1 = 0x0214,
.idcode2 = 0,
.pages_per_sector = 256,
.nr_sectors = 32,
.name = "S25FL016A",
},
{
.idcode1 = 0x0215,
.idcode2 = 0,
.pages_per_sector = 256,
.nr_sectors = 64,
.name = "S25FL032A",
},
{
.idcode1 = 0x0216,
.idcode2 = 0,
.pages_per_sector = 256,
.nr_sectors = 128,
.name = "S25FL064A",
},
{
.idcode1 = 0x2018,
.idcode2 = 0x0301,
.pages_per_sector = 256,
.nr_sectors = 256,
.name = "S25FL128P_64K",
},
{
.idcode1 = 0x2018,
.idcode2 = 0x0300,
.pages_per_sector = 1024,
.nr_sectors = 64,
.name = "S25FL128P_256K",
},
{
.idcode1 = 0x0215,
.idcode2 = 0x4d00,
.pages_per_sector = 256,
.nr_sectors = 64,
.name = "S25FL032P",
},
{
.idcode1 = 0x2018,
.idcode2 = 0x4d01,
.pages_per_sector = 256,
.nr_sectors = 256,
.name = "S25FL129P_64K",
},
};
static int spansion_erase(struct spi_flash *flash, u32 offset, size_t len)
{
return spi_flash_cmd_erase(flash, CMD_S25FLXX_SE, offset, len);
}
struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
{
const struct spansion_spi_flash_params *params;
struct spi_flash *flash;
unsigned int i;
unsigned short jedec, ext_jedec;
jedec = idcode[1] << 8 | idcode[2];
ext_jedec = idcode[3] << 8 | idcode[4];
for (i = 0; i < ARRAY_SIZE(spansion_spi_flash_table); i++) {
params = &spansion_spi_flash_table[i];
if (params->idcode1 == jedec) {
if (params->idcode2 == ext_jedec)
break;
}
}
if (i == ARRAY_SIZE(spansion_spi_flash_table)) {
debug("SF: Unsupported SPANSION ID %04x %04x\n", jedec, ext_jedec);
return NULL;
}
flash = malloc(sizeof(*flash));
if (!flash) {
debug("SF: Failed to allocate memory\n");
return NULL;
}
flash->spi = spi;
flash->name = params->name;
flash->write = spi_flash_cmd_write_multi;
flash->erase = spansion_erase;
flash->read = spi_flash_cmd_read_fast;
flash->page_size = 256;
flash->sector_size = 256 * params->pages_per_sector;
flash->size = flash->sector_size * params->nr_sectors;
return flash;
}
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