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Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +00001/*
Uwe Hermannd1107642007-08-29 17:52:32 +00002 * This file is part of the flashrom project.
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +00003 *
Uwe Hermannd22a1d42007-09-09 20:21:05 +00004 * Copyright (C) 2000 Silicon Integrated System Corporation
5 * Copyright (C) 2006 Giampiero Giancipoli <gianci@email.it>
6 * Copyright (C) 2006 coresystems GmbH <info@coresystems.de>
Carl-Daniel Hailfingerae8afa92007-12-31 01:49:00 +00007 * Copyright (C) 2007 Carl-Daniel Hailfinger
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +00008 *
Uwe Hermannd1107642007-08-29 17:52:32 +00009 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +000013 *
Uwe Hermannd1107642007-08-29 17:52:32 +000014 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +000018 *
Uwe Hermannd1107642007-08-29 17:52:32 +000019 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +000022 */
23
24#include "flash.h"
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +000025
Giampiero Giancipoli8c5299f2006-11-22 00:29:51 +000026#define MAX_REFLASH_TRIES 0x10
27
Carl-Daniel Hailfingera758f512008-05-14 12:03:06 +000028/* Check one byte for odd parity */
29uint8_t oddparity(uint8_t val)
30{
31 val = (val ^ (val >> 4)) & 0xf;
32 val = (val ^ (val >> 2)) & 0x3;
33 return (val ^ (val >> 1)) & 0x1;
34}
35
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +000036void toggle_ready_jedec(chipaddr dst)
Uwe Hermann51582f22007-08-23 10:20:40 +000037{
38 unsigned int i = 0;
39 uint8_t tmp1, tmp2;
40
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +000041 tmp1 = chip_readb(dst) & 0x40;
Uwe Hermann51582f22007-08-23 10:20:40 +000042
43 while (i++ < 0xFFFFFFF) {
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +000044 tmp2 = chip_readb(dst) & 0x40;
Uwe Hermann51582f22007-08-23 10:20:40 +000045 if (tmp1 == tmp2) {
46 break;
47 }
48 tmp1 = tmp2;
49 }
50}
51
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +000052void data_polling_jedec(chipaddr dst, uint8_t data)
Uwe Hermann51582f22007-08-23 10:20:40 +000053{
54 unsigned int i = 0;
55 uint8_t tmp;
56
57 data &= 0x80;
58
59 while (i++ < 0xFFFFFFF) {
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +000060 tmp = chip_readb(dst) & 0x80;
Uwe Hermann51582f22007-08-23 10:20:40 +000061 if (tmp == data) {
62 break;
63 }
64 }
65}
66
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +000067void unprotect_jedec(chipaddr bios)
Uwe Hermann51582f22007-08-23 10:20:40 +000068{
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +000069 chip_writeb(0xAA, bios + 0x5555);
70 chip_writeb(0x55, bios + 0x2AAA);
71 chip_writeb(0x80, bios + 0x5555);
72 chip_writeb(0xAA, bios + 0x5555);
73 chip_writeb(0x55, bios + 0x2AAA);
74 chip_writeb(0x20, bios + 0x5555);
Uwe Hermann51582f22007-08-23 10:20:40 +000075
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +000076 programmer_delay(200);
Uwe Hermann51582f22007-08-23 10:20:40 +000077}
78
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +000079void protect_jedec(chipaddr bios)
Uwe Hermann51582f22007-08-23 10:20:40 +000080{
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +000081 chip_writeb(0xAA, bios + 0x5555);
82 chip_writeb(0x55, bios + 0x2AAA);
83 chip_writeb(0xA0, bios + 0x5555);
Uwe Hermann51582f22007-08-23 10:20:40 +000084
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +000085 programmer_delay(200);
Uwe Hermann51582f22007-08-23 10:20:40 +000086}
87
Ollie Lho761bf1b2004-03-20 16:46:10 +000088int probe_jedec(struct flashchip *flash)
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +000089{
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +000090 chipaddr bios = flash->virtual_memory;
Ollie Lho184a4042005-11-26 21:55:36 +000091 uint8_t id1, id2;
Carl-Daniel Hailfingerae8afa92007-12-31 01:49:00 +000092 uint32_t largeid1, largeid2;
Carl-Daniel Hailfinger8130f2d2009-05-11 14:40:31 +000093 uint32_t flashcontent1, flashcontent2;
Maciej Pijankac6e11112009-06-03 14:46:22 +000094 int probe_timing_enter, probe_timing_exit;
95
96 if (flash->probe_timing > 0)
97 probe_timing_enter = probe_timing_exit = flash->probe_timing;
98 else if (flash->probe_timing == TIMING_ZERO) { /* No delay. */
99 probe_timing_enter = probe_timing_exit = 0;
100 } else if (flash->probe_timing == TIMING_FIXME) { /* == _IGNORED */
101 printf_debug("Chip lacks correct probe timing information, "
Carl-Daniel Hailfinger414bd322009-07-23 01:33:43 +0000102 "using default 10mS/40uS. ");
Maciej Pijankac6e11112009-06-03 14:46:22 +0000103 probe_timing_enter = 10000;
104 probe_timing_exit = 40;
105 } else {
106 printf("Chip has negative value in probe_timing, failing "
107 "without chip access\n");
108 return 0;
109 }
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000110
Ollie Lho761bf1b2004-03-20 16:46:10 +0000111 /* Issue JEDEC Product ID Entry command */
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000112 chip_writeb(0xAA, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000113 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000114 chip_writeb(0x55, bios + 0x2AAA);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000115 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000116 chip_writeb(0x90, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000117 programmer_delay(probe_timing_enter);
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000118
Ollie Lho761bf1b2004-03-20 16:46:10 +0000119 /* Read product ID */
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000120 id1 = chip_readb(bios);
121 id2 = chip_readb(bios + 0x01);
Carl-Daniel Hailfingerae8afa92007-12-31 01:49:00 +0000122 largeid1 = id1;
123 largeid2 = id2;
124
125 /* Check if it is a continuation ID, this should be a while loop. */
126 if (id1 == 0x7F) {
127 largeid1 <<= 8;
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000128 id1 = chip_readb(bios + 0x100);
Carl-Daniel Hailfingerae8afa92007-12-31 01:49:00 +0000129 largeid1 |= id1;
130 }
131 if (id2 == 0x7F) {
132 largeid2 <<= 8;
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000133 id2 = chip_readb(bios + 0x101);
Carl-Daniel Hailfingerae8afa92007-12-31 01:49:00 +0000134 largeid2 |= id2;
135 }
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000136
Ollie Lho761bf1b2004-03-20 16:46:10 +0000137 /* Issue JEDEC Product ID Exit command */
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000138 chip_writeb(0xAA, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000139 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000140 chip_writeb(0x55, bios + 0x2AAA);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000141 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000142 chip_writeb(0xF0, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000143 programmer_delay(probe_timing_exit);
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000144
Uwe Hermann04aa59a2009-09-02 22:09:00 +0000145 printf_debug("%s: id1 0x%02x, id2 0x%02x", __func__, largeid1, largeid2);
Carl-Daniel Hailfingera758f512008-05-14 12:03:06 +0000146 if (!oddparity(id1))
147 printf_debug(", id1 parity violation");
Carl-Daniel Hailfinger8130f2d2009-05-11 14:40:31 +0000148
149 /* Read the product ID location again. We should now see normal flash contents. */
150 flashcontent1 = chip_readb(bios);
151 flashcontent2 = chip_readb(bios + 0x01);
152
153 /* Check if it is a continuation ID, this should be a while loop. */
154 if (flashcontent1 == 0x7F) {
155 flashcontent1 <<= 8;
156 flashcontent1 |= chip_readb(bios + 0x100);
157 }
158 if (flashcontent2 == 0x7F) {
159 flashcontent2 <<= 8;
160 flashcontent2 |= chip_readb(bios + 0x101);
161 }
162
163 if (largeid1 == flashcontent1)
164 printf_debug(", id1 is normal flash content");
165 if (largeid2 == flashcontent2)
166 printf_debug(", id2 is normal flash content");
167
Carl-Daniel Hailfingera758f512008-05-14 12:03:06 +0000168 printf_debug("\n");
Carl-Daniel Hailfingerae8afa92007-12-31 01:49:00 +0000169 if (largeid1 == flash->manufacture_id && largeid2 == flash->model_id)
Ollie Lho761bf1b2004-03-20 16:46:10 +0000170 return 1;
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000171
Ollie Lho761bf1b2004-03-20 16:46:10 +0000172 return 0;
Ollie Lho73eca802004-03-19 22:10:07 +0000173}
174
Carl-Daniel Hailfingera06287c2009-09-23 22:01:33 +0000175int erase_sector_jedec(struct flashchip *flash, unsigned int page, unsigned int pagesize)
Ollie Lho73eca802004-03-19 22:10:07 +0000176{
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +0000177 chipaddr bios = flash->virtual_memory;
178
Ollie Lho761bf1b2004-03-20 16:46:10 +0000179 /* Issue the Sector Erase command */
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000180 chip_writeb(0xAA, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000181 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000182 chip_writeb(0x55, bios + 0x2AAA);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000183 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000184 chip_writeb(0x80, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000185 programmer_delay(10);
Ollie Lhoefa28582004-12-08 20:10:01 +0000186
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000187 chip_writeb(0xAA, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000188 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000189 chip_writeb(0x55, bios + 0x2AAA);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000190 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000191 chip_writeb(0x30, bios + page);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000192 programmer_delay(10);
Ollie Lho761bf1b2004-03-20 16:46:10 +0000193
Ollie Lho73eca802004-03-19 22:10:07 +0000194 /* wait for Toggle bit ready */
195 toggle_ready_jedec(bios);
196
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +0000197 if (check_erased_range(flash, page, pagesize)) {
198 fprintf(stderr,"ERASE FAILED!\n");
199 return -1;
200 }
Uwe Hermannffec5f32007-08-23 16:08:21 +0000201 return 0;
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000202}
Ollie Lho98bea8a2004-12-07 03:15:51 +0000203
Carl-Daniel Hailfingera06287c2009-09-23 22:01:33 +0000204int erase_block_jedec(struct flashchip *flash, unsigned int block, unsigned int blocksize)
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000205{
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +0000206 chipaddr bios = flash->virtual_memory;
207
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000208 /* Issue the Sector Erase command */
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000209 chip_writeb(0xAA, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000210 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000211 chip_writeb(0x55, bios + 0x2AAA);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000212 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000213 chip_writeb(0x80, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000214 programmer_delay(10);
Ollie Lhoefa28582004-12-08 20:10:01 +0000215
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000216 chip_writeb(0xAA, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000217 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000218 chip_writeb(0x55, bios + 0x2AAA);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000219 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000220 chip_writeb(0x50, bios + block);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000221 programmer_delay(10);
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000222
223 /* wait for Toggle bit ready */
224 toggle_ready_jedec(bios);
225
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +0000226 if (check_erased_range(flash, block, blocksize)) {
227 fprintf(stderr,"ERASE FAILED!\n");
228 return -1;
229 }
Uwe Hermannffec5f32007-08-23 16:08:21 +0000230 return 0;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000231}
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000232
Ollie Lho761bf1b2004-03-20 16:46:10 +0000233int erase_chip_jedec(struct flashchip *flash)
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000234{
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +0000235 int total_size = flash->total_size * 1024;
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +0000236 chipaddr bios = flash->virtual_memory;
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000237
Ollie Lho761bf1b2004-03-20 16:46:10 +0000238 /* Issue the JEDEC Chip Erase command */
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000239 chip_writeb(0xAA, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000240 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000241 chip_writeb(0x55, bios + 0x2AAA);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000242 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000243 chip_writeb(0x80, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000244 programmer_delay(10);
Ollie Lhoefa28582004-12-08 20:10:01 +0000245
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000246 chip_writeb(0xAA, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000247 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000248 chip_writeb(0x55, bios + 0x2AAA);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000249 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000250 chip_writeb(0x10, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +0000251 programmer_delay(10);
Ollie Lho73eca802004-03-19 22:10:07 +0000252
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000253 toggle_ready_jedec(bios);
Ronald G. Minnicheaab50b2003-09-12 22:41:53 +0000254
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +0000255 if (check_erased_range(flash, 0, total_size)) {
256 fprintf(stderr,"ERASE FAILED!\n");
257 return -1;
258 }
Uwe Hermannffec5f32007-08-23 16:08:21 +0000259 return 0;
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000260}
261
Urja Rannikko0c854c02009-06-25 13:57:31 +0000262int write_page_write_jedec(struct flashchip *flash, uint8_t *src,
263 int start, int page_size)
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000264{
Carl-Daniel Hailfinger8a8a2262009-11-14 03:48:33 +0000265 int i, tried = 0, ok;
Giampiero Giancipoli8c5299f2006-11-22 00:29:51 +0000266 uint8_t *s = src;
Urja Rannikko0c854c02009-06-25 13:57:31 +0000267 chipaddr bios = flash->virtual_memory;
268 chipaddr dst = bios + start;
269 chipaddr d = dst;
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000270
Giampiero Giancipoli8c5299f2006-11-22 00:29:51 +0000271retry:
Ollie Lho761bf1b2004-03-20 16:46:10 +0000272 /* Issue JEDEC Data Unprotect comand */
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000273 chip_writeb(0xAA, bios + 0x5555);
274 chip_writeb(0x55, bios + 0x2AAA);
275 chip_writeb(0xA0, bios + 0x5555);
Ollie Lho761bf1b2004-03-20 16:46:10 +0000276
Ollie Lho98bea8a2004-12-07 03:15:51 +0000277 /* transfer data from source to destination */
Carl-Daniel Hailfinger8a8a2262009-11-14 03:48:33 +0000278 for (i = 0; i < page_size; i++) {
Ollie Lho98bea8a2004-12-07 03:15:51 +0000279 /* If the data is 0xFF, don't program it */
Uwe Hermanna7e05482007-05-09 10:17:44 +0000280 if (*src != 0xFF)
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000281 chip_writeb(*src, dst);
Giampiero Giancipoli8c5299f2006-11-22 00:29:51 +0000282 dst++;
283 src++;
Ollie Lho761bf1b2004-03-20 16:46:10 +0000284 }
285
Ollie Lho761bf1b2004-03-20 16:46:10 +0000286 toggle_ready_jedec(dst - 1);
Ollie Lho98bea8a2004-12-07 03:15:51 +0000287
Giampiero Giancipoli8c5299f2006-11-22 00:29:51 +0000288 dst = d;
289 src = s;
Urja Rannikko0c854c02009-06-25 13:57:31 +0000290 ok = !verify_range(flash, src, start, page_size, NULL);
Uwe Hermanna7e05482007-05-09 10:17:44 +0000291
Giampiero Giancipoli8c5299f2006-11-22 00:29:51 +0000292 if (!ok && tried++ < MAX_REFLASH_TRIES) {
Carl-Daniel Hailfinger8a8a2262009-11-14 03:48:33 +0000293 fprintf(stderr, "retrying.\n");
Uwe Hermanna7e05482007-05-09 10:17:44 +0000294 goto retry;
295 }
Giampiero Giancipoli8c5299f2006-11-22 00:29:51 +0000296 if (!ok) {
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +0000297 fprintf(stderr, " page 0x%lx failed!\n",
298 (d - bios) / page_size);
Giampiero Giancipoli8c5299f2006-11-22 00:29:51 +0000299 }
Uwe Hermannffec5f32007-08-23 16:08:21 +0000300 return !ok;
Ollie Lho761bf1b2004-03-20 16:46:10 +0000301}
302
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +0000303int write_byte_program_jedec(chipaddr bios, uint8_t *src,
304 chipaddr dst)
Ollie Lho070647d2004-03-22 22:19:17 +0000305{
Giampiero Giancipoli8c5299f2006-11-22 00:29:51 +0000306 int tried = 0, ok = 1;
Ollie Lho1b8b6602004-12-08 02:10:33 +0000307
Ollie Lho98bea8a2004-12-07 03:15:51 +0000308 /* If the data is 0xFF, don't program it */
Ollie Lho070647d2004-03-22 22:19:17 +0000309 if (*src == 0xFF) {
Giampiero Giancipoli8c5299f2006-11-22 00:29:51 +0000310 return -1;
Ollie Lho070647d2004-03-22 22:19:17 +0000311 }
Ollie Lho98bea8a2004-12-07 03:15:51 +0000312
Ollie Lho1b8b6602004-12-08 02:10:33 +0000313retry:
Ollie Lho070647d2004-03-22 22:19:17 +0000314 /* Issue JEDEC Byte Program command */
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000315 chip_writeb(0xAA, bios + 0x5555);
316 chip_writeb(0x55, bios + 0x2AAA);
317 chip_writeb(0xA0, bios + 0x5555);
Ollie Lho98bea8a2004-12-07 03:15:51 +0000318
319 /* transfer data from source to destination */
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000320 chip_writeb(*src, dst);
Ollie Lho070647d2004-03-22 22:19:17 +0000321 toggle_ready_jedec(bios);
Ollie Lho8b8897a2004-03-27 00:18:15 +0000322
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +0000323 if (chip_readb(dst) != *src && tried++ < MAX_REFLASH_TRIES) {
Uwe Hermanna7e05482007-05-09 10:17:44 +0000324 goto retry;
325 }
Ollie Lho1b8b6602004-12-08 02:10:33 +0000326
Giampiero Giancipoli8c5299f2006-11-22 00:29:51 +0000327 if (tried >= MAX_REFLASH_TRIES)
Uwe Hermanna7e05482007-05-09 10:17:44 +0000328 ok = 0;
Giampiero Giancipoli8c5299f2006-11-22 00:29:51 +0000329
Uwe Hermannffec5f32007-08-23 16:08:21 +0000330 return !ok;
Ollie Lho070647d2004-03-22 22:19:17 +0000331}
332
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +0000333int write_sector_jedec(chipaddr bios, uint8_t *src,
334 chipaddr dst, unsigned int page_size)
Ollie Lho761bf1b2004-03-20 16:46:10 +0000335{
336 int i;
Ollie Lho761bf1b2004-03-20 16:46:10 +0000337
338 for (i = 0; i < page_size; i++) {
Ollie Lho8b8897a2004-03-27 00:18:15 +0000339 write_byte_program_jedec(bios, src, dst);
340 dst++, src++;
Ollie Lho761bf1b2004-03-20 16:46:10 +0000341 }
342
Uwe Hermannffec5f32007-08-23 16:08:21 +0000343 return 0;
Ollie Lho761bf1b2004-03-20 16:46:10 +0000344}
345
Ollie Lho184a4042005-11-26 21:55:36 +0000346int write_jedec(struct flashchip *flash, uint8_t *buf)
Ollie Lho761bf1b2004-03-20 16:46:10 +0000347{
348 int i;
Ollie Lho070647d2004-03-22 22:19:17 +0000349 int total_size = flash->total_size * 1024;
350 int page_size = flash->page_size;
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +0000351 chipaddr bios = flash->virtual_memory;
Ollie Lho761bf1b2004-03-20 16:46:10 +0000352
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +0000353 if (erase_chip_jedec(flash)) {
354 fprintf(stderr,"ERASE FAILED!\n");
355 return -1;
Uwe Hermanna7e05482007-05-09 10:17:44 +0000356 }
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +0000357
Uwe Hermanna502dce2007-10-17 23:55:15 +0000358 printf("Programming page: ");
Ollie Lho761bf1b2004-03-20 16:46:10 +0000359 for (i = 0; i < total_size / page_size; i++) {
360 printf("%04d at address: 0x%08x", i, i * page_size);
Urja Rannikko0c854c02009-06-25 13:57:31 +0000361 write_page_write_jedec(flash, buf + i * page_size,
362 i * page_size, page_size);
Ollie Lho070647d2004-03-22 22:19:17 +0000363 printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000364 }
365 printf("\n");
Ollie Lho761bf1b2004-03-20 16:46:10 +0000366 protect_jedec(bios);
Ronald G. Minnicheaab50b2003-09-12 22:41:53 +0000367
Uwe Hermannffec5f32007-08-23 16:08:21 +0000368 return 0;
Ronald G. Minnich5e5f75e2002-01-29 18:21:41 +0000369}