Mingkai Hu | 6805e4b | 2009-03-31 14:09:41 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2009 Freescale Semiconductor, Inc. |
| 3 | * |
| 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) |
| 8 | * |
| 9 | * See file CREDITS for list of people who contributed to this |
| 10 | * project. |
| 11 | * |
| 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. |
| 16 | * |
| 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. |
| 21 | * |
| 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, |
| 25 | * MA 02111-1307 USA |
| 26 | */ |
| 27 | |
| 28 | #include <common.h> |
| 29 | #include <malloc.h> |
| 30 | #include <spi_flash.h> |
| 31 | |
| 32 | #include "spi_flash_internal.h" |
| 33 | |
| 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 */ |
| 47 | |
| 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 |
David Jander | ff0dc2c | 2010-08-23 15:12:16 +0200 | [diff] [blame] | 55 | #define SPSN_EXT_ID_S25FL032P 0x4d00 |
Mingkai Hu | 6805e4b | 2009-03-31 14:09:41 +0800 | [diff] [blame] | 56 | |
Mingkai Hu | 6805e4b | 2009-03-31 14:09:41 +0800 | [diff] [blame] | 57 | struct spansion_spi_flash_params { |
| 58 | u16 idcode1; |
| 59 | u16 idcode2; |
| 60 | u16 page_size; |
| 61 | u16 pages_per_sector; |
| 62 | u16 nr_sectors; |
| 63 | const char *name; |
| 64 | }; |
| 65 | |
| 66 | struct spansion_spi_flash { |
| 67 | struct spi_flash flash; |
| 68 | const struct spansion_spi_flash_params *params; |
| 69 | }; |
| 70 | |
| 71 | static inline struct spansion_spi_flash *to_spansion_spi_flash(struct spi_flash |
| 72 | *flash) |
| 73 | { |
| 74 | return container_of(flash, struct spansion_spi_flash, flash); |
| 75 | } |
| 76 | |
| 77 | static const struct spansion_spi_flash_params spansion_spi_flash_table[] = { |
| 78 | { |
| 79 | .idcode1 = SPSN_ID_S25FL008A, |
| 80 | .idcode2 = 0, |
| 81 | .page_size = 256, |
| 82 | .pages_per_sector = 256, |
| 83 | .nr_sectors = 16, |
| 84 | .name = "S25FL008A", |
| 85 | }, |
| 86 | { |
| 87 | .idcode1 = SPSN_ID_S25FL016A, |
| 88 | .idcode2 = 0, |
| 89 | .page_size = 256, |
| 90 | .pages_per_sector = 256, |
| 91 | .nr_sectors = 32, |
| 92 | .name = "S25FL016A", |
| 93 | }, |
| 94 | { |
| 95 | .idcode1 = SPSN_ID_S25FL032A, |
| 96 | .idcode2 = 0, |
| 97 | .page_size = 256, |
| 98 | .pages_per_sector = 256, |
| 99 | .nr_sectors = 64, |
| 100 | .name = "S25FL032A", |
| 101 | }, |
| 102 | { |
| 103 | .idcode1 = SPSN_ID_S25FL064A, |
| 104 | .idcode2 = 0, |
| 105 | .page_size = 256, |
| 106 | .pages_per_sector = 256, |
| 107 | .nr_sectors = 128, |
| 108 | .name = "S25FL064A", |
| 109 | }, |
| 110 | { |
| 111 | .idcode1 = SPSN_ID_S25FL128P, |
| 112 | .idcode2 = SPSN_EXT_ID_S25FL128P_64KB, |
| 113 | .page_size = 256, |
| 114 | .pages_per_sector = 256, |
| 115 | .nr_sectors = 256, |
| 116 | .name = "S25FL128P_64K", |
| 117 | }, |
| 118 | { |
| 119 | .idcode1 = SPSN_ID_S25FL128P, |
| 120 | .idcode2 = SPSN_EXT_ID_S25FL128P_256KB, |
| 121 | .page_size = 256, |
| 122 | .pages_per_sector = 1024, |
| 123 | .nr_sectors = 64, |
| 124 | .name = "S25FL128P_256K", |
| 125 | }, |
David Jander | ff0dc2c | 2010-08-23 15:12:16 +0200 | [diff] [blame] | 126 | { |
| 127 | .idcode1 = SPSN_ID_S25FL032A, |
| 128 | .idcode2 = SPSN_EXT_ID_S25FL032P, |
| 129 | .page_size = 256, |
| 130 | .pages_per_sector = 256, |
| 131 | .nr_sectors = 64, |
| 132 | .name = "S25FL032P", |
| 133 | }, |
Mingkai Hu | 6805e4b | 2009-03-31 14:09:41 +0800 | [diff] [blame] | 134 | }; |
| 135 | |
Mingkai Hu | 6805e4b | 2009-03-31 14:09:41 +0800 | [diff] [blame] | 136 | static int spansion_write(struct spi_flash *flash, |
| 137 | u32 offset, size_t len, const void *buf) |
| 138 | { |
| 139 | struct spansion_spi_flash *spsn = to_spansion_spi_flash(flash); |
| 140 | unsigned long page_addr; |
| 141 | unsigned long byte_addr; |
| 142 | unsigned long page_size; |
| 143 | size_t chunk_len; |
| 144 | size_t actual; |
| 145 | int ret; |
| 146 | u8 cmd[4]; |
| 147 | |
| 148 | page_size = spsn->params->page_size; |
| 149 | page_addr = offset / page_size; |
| 150 | byte_addr = offset % page_size; |
| 151 | |
| 152 | ret = spi_claim_bus(flash->spi); |
| 153 | if (ret) { |
| 154 | debug("SF: Unable to claim SPI bus\n"); |
| 155 | return ret; |
| 156 | } |
| 157 | |
| 158 | ret = 0; |
| 159 | for (actual = 0; actual < len; actual += chunk_len) { |
| 160 | chunk_len = min(len - actual, page_size - byte_addr); |
| 161 | |
| 162 | cmd[0] = CMD_S25FLXX_PP; |
| 163 | cmd[1] = page_addr >> 8; |
| 164 | cmd[2] = page_addr; |
| 165 | cmd[3] = byte_addr; |
| 166 | |
| 167 | debug |
| 168 | ("PP: 0x%p => cmd = { 0x%02x 0x%02x%02x%02x } chunk_len = %d\n", |
| 169 | buf + actual, cmd[0], cmd[1], cmd[2], cmd[3], chunk_len); |
| 170 | |
| 171 | ret = spi_flash_cmd(flash->spi, CMD_S25FLXX_WREN, NULL, 0); |
| 172 | if (ret < 0) { |
| 173 | debug("SF: Enabling Write failed\n"); |
| 174 | break; |
| 175 | } |
| 176 | |
| 177 | ret = spi_flash_cmd_write(flash->spi, cmd, 4, |
| 178 | buf + actual, chunk_len); |
| 179 | if (ret < 0) { |
| 180 | debug("SF: SPANSION Page Program failed\n"); |
| 181 | break; |
| 182 | } |
| 183 | |
Mike Frysinger | 6163045 | 2011-01-10 02:20:12 -0500 | [diff] [blame] | 184 | ret = spi_flash_cmd_wait_ready(flash, SPI_FLASH_PROG_TIMEOUT); |
| 185 | if (ret) |
Mingkai Hu | 6805e4b | 2009-03-31 14:09:41 +0800 | [diff] [blame] | 186 | break; |
Mingkai Hu | 6805e4b | 2009-03-31 14:09:41 +0800 | [diff] [blame] | 187 | |
| 188 | page_addr++; |
| 189 | byte_addr = 0; |
| 190 | } |
| 191 | |
| 192 | debug("SF: SPANSION: Successfully programmed %u bytes @ 0x%x\n", |
| 193 | len, offset); |
| 194 | |
| 195 | spi_release_bus(flash->spi); |
| 196 | return ret; |
| 197 | } |
| 198 | |
| 199 | int spansion_erase(struct spi_flash *flash, u32 offset, size_t len) |
| 200 | { |
| 201 | struct spansion_spi_flash *spsn = to_spansion_spi_flash(flash); |
Mike Frysinger | e7b44ed | 2011-01-10 02:20:13 -0500 | [diff] [blame] | 202 | return spi_flash_cmd_erase(flash, CMD_S25FLXX_SE, |
| 203 | spsn->params->page_size * spsn->params->pages_per_sector, |
| 204 | offset, len); |
Mingkai Hu | 6805e4b | 2009-03-31 14:09:41 +0800 | [diff] [blame] | 205 | } |
| 206 | |
| 207 | struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode) |
| 208 | { |
| 209 | const struct spansion_spi_flash_params *params; |
| 210 | struct spansion_spi_flash *spsn; |
| 211 | unsigned int i; |
| 212 | unsigned short jedec, ext_jedec; |
Mingkai Hu | 6805e4b | 2009-03-31 14:09:41 +0800 | [diff] [blame] | 213 | |
Mike Frysinger | 0dcdbb1 | 2009-03-28 06:41:09 -0400 | [diff] [blame] | 214 | jedec = idcode[1] << 8 | idcode[2]; |
| 215 | ext_jedec = idcode[3] << 8 | idcode[4]; |
Mingkai Hu | 6805e4b | 2009-03-31 14:09:41 +0800 | [diff] [blame] | 216 | |
| 217 | for (i = 0; i < ARRAY_SIZE(spansion_spi_flash_table); i++) { |
| 218 | params = &spansion_spi_flash_table[i]; |
| 219 | if (params->idcode1 == jedec) { |
| 220 | if (params->idcode2 == ext_jedec) |
| 221 | break; |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | if (i == ARRAY_SIZE(spansion_spi_flash_table)) { |
| 226 | debug("SF: Unsupported SPANSION ID %04x %04x\n", jedec, ext_jedec); |
| 227 | return NULL; |
| 228 | } |
| 229 | |
| 230 | spsn = malloc(sizeof(struct spansion_spi_flash)); |
| 231 | if (!spsn) { |
| 232 | debug("SF: Failed to allocate memory\n"); |
| 233 | return NULL; |
| 234 | } |
| 235 | |
| 236 | spsn->params = params; |
| 237 | spsn->flash.spi = spi; |
| 238 | spsn->flash.name = params->name; |
| 239 | |
| 240 | spsn->flash.write = spansion_write; |
| 241 | spsn->flash.erase = spansion_erase; |
Mike Frysinger | a4c3b40 | 2011-01-10 02:20:14 -0500 | [diff] [blame^] | 242 | spsn->flash.read = spi_flash_cmd_read_fast; |
Mingkai Hu | 6805e4b | 2009-03-31 14:09:41 +0800 | [diff] [blame] | 243 | spsn->flash.size = params->page_size * params->pages_per_sector |
| 244 | * params->nr_sectors; |
| 245 | |
Mike Frysinger | b376bbb | 2010-04-29 00:35:12 -0400 | [diff] [blame] | 246 | printf("SF: Detected %s with page size %u, total ", |
| 247 | params->name, params->page_size); |
| 248 | print_size(spsn->flash.size, "\n"); |
Mingkai Hu | 6805e4b | 2009-03-31 14:09:41 +0800 | [diff] [blame] | 249 | |
| 250 | return &spsn->flash; |
| 251 | } |