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4a4cb4e111
Add support for Spansion S25FL256S SPI flash. Signed-off-by: Michal Simek <monstr@monstr.eu> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
149 lines
3.4 KiB
C
149 lines
3.4 KiB
C
/*
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* Copyright (C) 2009 Freescale Semiconductor, Inc.
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*
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* Author: Mingkai Hu (Mingkai.hu@freescale.com)
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* Based on stmicro.c by Wolfgang Denk (wd@denx.de),
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* TsiChung Liew (Tsi-Chung.Liew@freescale.com),
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* and Jason McMullan (mcmullan@netapp.com)
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <malloc.h>
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#include <spi_flash.h>
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#include "spi_flash_internal.h"
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struct spansion_spi_flash_params {
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u16 idcode1;
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u16 idcode2;
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u16 pages_per_sector;
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u16 nr_sectors;
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const char *name;
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};
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static const struct spansion_spi_flash_params spansion_spi_flash_table[] = {
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{
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.idcode1 = 0x0213,
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.idcode2 = 0,
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.pages_per_sector = 256,
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.nr_sectors = 16,
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.name = "S25FL008A",
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},
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{
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.idcode1 = 0x0214,
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.idcode2 = 0,
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.pages_per_sector = 256,
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.nr_sectors = 32,
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.name = "S25FL016A",
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},
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{
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.idcode1 = 0x0215,
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.idcode2 = 0,
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.pages_per_sector = 256,
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.nr_sectors = 64,
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.name = "S25FL032A",
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},
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{
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.idcode1 = 0x0216,
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.idcode2 = 0,
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.pages_per_sector = 256,
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.nr_sectors = 128,
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.name = "S25FL064A",
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},
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{
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.idcode1 = 0x2018,
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.idcode2 = 0x0301,
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.pages_per_sector = 256,
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.nr_sectors = 256,
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.name = "S25FL128P_64K",
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},
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{
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.idcode1 = 0x2018,
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.idcode2 = 0x0300,
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.pages_per_sector = 1024,
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.nr_sectors = 64,
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.name = "S25FL128P_256K",
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},
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{
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.idcode1 = 0x0215,
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.idcode2 = 0x4d00,
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.pages_per_sector = 256,
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.nr_sectors = 64,
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.name = "S25FL032P",
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},
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{
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.idcode1 = 0x2018,
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.idcode2 = 0x4d01,
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.pages_per_sector = 256,
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.nr_sectors = 256,
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.name = "S25FL129P_64K",
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},
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{
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.idcode1 = 0x2019,
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.idcode2 = 0x4d01,
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.pages_per_sector = 256,
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.nr_sectors = 512,
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.name = "S25FL256S",
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},
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};
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struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
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{
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const struct spansion_spi_flash_params *params;
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struct spi_flash *flash;
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unsigned int i;
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unsigned short jedec, ext_jedec;
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jedec = idcode[1] << 8 | idcode[2];
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ext_jedec = idcode[3] << 8 | idcode[4];
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for (i = 0; i < ARRAY_SIZE(spansion_spi_flash_table); i++) {
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params = &spansion_spi_flash_table[i];
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if (params->idcode1 == jedec) {
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if (params->idcode2 == ext_jedec)
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break;
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}
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}
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if (i == ARRAY_SIZE(spansion_spi_flash_table)) {
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debug("SF: Unsupported SPANSION ID %04x %04x\n", jedec, ext_jedec);
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return NULL;
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}
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flash = malloc(sizeof(*flash));
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if (!flash) {
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debug("SF: Failed to allocate memory\n");
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return NULL;
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}
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flash->spi = spi;
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flash->name = params->name;
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flash->write = spi_flash_cmd_write_multi;
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flash->erase = spi_flash_cmd_erase;
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flash->read = spi_flash_cmd_read_fast;
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flash->page_size = 256;
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flash->sector_size = 256 * params->pages_per_sector;
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flash->size = flash->sector_size * params->nr_sectors;
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return flash;
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}
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