2 * Copyright (C) 2009 Freescale Semiconductor, Inc.
4 * Author: Mingkai Hu (Mingkai.hu@freescale.com)
5 * Based on stmicro.c by Wolfgang Denk (wd@denx.de),
6 * TsiChung Liew (Tsi-Chung.Liew@freescale.com),
7 * and Jason McMullan (mcmullan@netapp.com)
9 * See file CREDITS for list of people who contributed to this
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30 #include <spi_flash.h>
32 #include "spi_flash_internal.h"
34 /* S25FLxx-specific commands */
35 #define CMD_S25FLXX_READ 0x03 /* Read Data Bytes */
36 #define CMD_S25FLXX_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */
37 #define CMD_S25FLXX_READID 0x90 /* Read Manufacture ID and Device ID */
38 #define CMD_S25FLXX_WREN 0x06 /* Write Enable */
39 #define CMD_S25FLXX_WRDI 0x04 /* Write Disable */
40 #define CMD_S25FLXX_RDSR 0x05 /* Read Status Register */
41 #define CMD_S25FLXX_WRSR 0x01 /* Write Status Register */
42 #define CMD_S25FLXX_PP 0x02 /* Page Program */
43 #define CMD_S25FLXX_SE 0xd8 /* Sector Erase */
44 #define CMD_S25FLXX_BE 0xc7 /* Bulk Erase */
45 #define CMD_S25FLXX_DP 0xb9 /* Deep Power-down */
46 #define CMD_S25FLXX_RES 0xab /* Release from DP, and Read Signature */
48 #define SPSN_ID_S25FL008A 0x0213
49 #define SPSN_ID_S25FL016A 0x0214
50 #define SPSN_ID_S25FL032A 0x0215
51 #define SPSN_ID_S25FL064A 0x0216
52 #define SPSN_ID_S25FL128P 0x2018
53 #define SPSN_EXT_ID_S25FL128P_256KB 0x0300
54 #define SPSN_EXT_ID_S25FL128P_64KB 0x0301
55 #define SPSN_EXT_ID_S25FL032P 0x4d00
56 #define SPSN_EXT_ID_S25FL129P 0x4d01
58 struct spansion_spi_flash_params {
67 static const struct spansion_spi_flash_params spansion_spi_flash_table[] = {
69 .idcode1 = SPSN_ID_S25FL008A,
72 .pages_per_sector = 256,
77 .idcode1 = SPSN_ID_S25FL016A,
80 .pages_per_sector = 256,
85 .idcode1 = SPSN_ID_S25FL032A,
88 .pages_per_sector = 256,
93 .idcode1 = SPSN_ID_S25FL064A,
96 .pages_per_sector = 256,
101 .idcode1 = SPSN_ID_S25FL128P,
102 .idcode2 = SPSN_EXT_ID_S25FL128P_64KB,
104 .pages_per_sector = 256,
106 .name = "S25FL128P_64K",
109 .idcode1 = SPSN_ID_S25FL128P,
110 .idcode2 = SPSN_EXT_ID_S25FL128P_256KB,
112 .pages_per_sector = 1024,
114 .name = "S25FL128P_256K",
117 .idcode1 = SPSN_ID_S25FL032A,
118 .idcode2 = SPSN_EXT_ID_S25FL032P,
120 .pages_per_sector = 256,
125 .idcode1 = SPSN_ID_S25FL128P,
126 .idcode2 = SPSN_EXT_ID_S25FL129P,
128 .pages_per_sector = 256,
130 .name = "S25FL129P_64K",
134 static int spansion_erase(struct spi_flash *flash, u32 offset, size_t len)
136 return spi_flash_cmd_erase(flash, CMD_S25FLXX_SE, offset, len);
139 struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
141 const struct spansion_spi_flash_params *params;
142 struct spi_flash *flash;
144 unsigned short jedec, ext_jedec;
146 jedec = idcode[1] << 8 | idcode[2];
147 ext_jedec = idcode[3] << 8 | idcode[4];
149 for (i = 0; i < ARRAY_SIZE(spansion_spi_flash_table); i++) {
150 params = &spansion_spi_flash_table[i];
151 if (params->idcode1 == jedec) {
152 if (params->idcode2 == ext_jedec)
157 if (i == ARRAY_SIZE(spansion_spi_flash_table)) {
158 debug("SF: Unsupported SPANSION ID %04x %04x\n", jedec, ext_jedec);
162 flash = malloc(sizeof(*flash));
164 debug("SF: Failed to allocate memory\n");
169 flash->name = params->name;
171 flash->write = spi_flash_cmd_write_multi;
172 flash->erase = spansion_erase;
173 flash->read = spi_flash_cmd_read_fast;
174 flash->page_size = params->page_size;
175 flash->sector_size = params->page_size * params->pages_per_sector;
176 flash->size = flash->sector_size * params->nr_sectors;