blob: 853419ac8268f34f948d0ff10f88320bb8a0cd02 [file] [log] [blame]
Peter Stugecce26822008-07-21 17:48:40 +00001/*
2 * This file is part of the flashrom project.
3 *
4 * Copyright (C) 2008 Peter Stuge <peter@stuge.se>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
Peter Stugecce26822008-07-21 17:48:40 +000021#include "flash.h"
22
23int probe_w39v040c(struct flashchip *flash)
24{
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +000025 chipaddr bios = flash->virtual_memory;
Carl-Daniel Hailfinger4e9cebb2009-09-05 01:16:30 +000026 int result = probe_jedec(flash);
27 uint8_t lock;
28
29 if (!result)
30 return result;
Peter Stugecce26822008-07-21 17:48:40 +000031
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +000032 chip_writeb(0xAA, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +000033 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +000034 chip_writeb(0x55, bios + 0x2AAA);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +000035 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +000036 chip_writeb(0x90, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +000037 programmer_delay(10);
Peter Stugecce26822008-07-21 17:48:40 +000038
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +000039 lock = chip_readb(bios + 0xfff2);
Peter Stugecce26822008-07-21 17:48:40 +000040
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +000041 chip_writeb(0xAA, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +000042 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +000043 chip_writeb(0x55, bios + 0x2AAA);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +000044 programmer_delay(10);
Carl-Daniel Hailfinger0472f3d2009-03-06 22:26:00 +000045 chip_writeb(0xF0, bios + 0x5555);
Carl-Daniel Hailfingerca8bfc62009-06-05 17:48:08 +000046 programmer_delay(40);
Peter Stugecce26822008-07-21 17:48:40 +000047
Carl-Daniel Hailfinger4e9cebb2009-09-05 01:16:30 +000048 printf("%s: Boot block #TBL is %slocked, rest of chip #WP is %slocked.\n",
49 __func__, lock & 0x4 ? "" : "un", lock & 0x8 ? "" : "un");
50 return 1;
Peter Stugecce26822008-07-21 17:48:40 +000051}
52
Sean Nelson6e0b9122010-02-19 00:52:10 +000053int printlock_w39v040c(struct flashchip *flash)
54{
55 chipaddr bios = flash->virtual_memory;
56 uint8_t lock;
57
58 chip_writeb(0xAA, bios + 0x5555);
59 programmer_delay(10);
60 chip_writeb(0x55, bios + 0x2AAA);
61 programmer_delay(10);
62 chip_writeb(0x90, bios + 0x5555);
63 programmer_delay(10);
64
65 lock = chip_readb(bios + 0xfff2);
66
67 chip_writeb(0xAA, bios + 0x5555);
68 programmer_delay(10);
69 chip_writeb(0x55, bios + 0x2AAA);
70 programmer_delay(10);
71 chip_writeb(0xF0, bios + 0x5555);
72 programmer_delay(40);
73
74 printf("%s: Boot block #TBL is %slocked, rest of chip #WP is %slocked.\n",
75 __func__, lock & 0x4 ? "" : "un", lock & 0x8 ? "" : "un");
76 return 0;
77}
78
Peter Stugecce26822008-07-21 17:48:40 +000079int erase_w39v040c(struct flashchip *flash)
80{
81 int i;
82 unsigned int total_size = flash->total_size * 1024;
Peter Stugecce26822008-07-21 17:48:40 +000083
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +000084 for (i = 0; i < total_size; i += flash->page_size) {
85 if (erase_sector_jedec(flash, i, flash->page_size)) {
86 fprintf(stderr, "ERASE FAILED!\n");
Peter Stugecce26822008-07-21 17:48:40 +000087 return -1;
88 }
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +000089 }
Peter Stugecce26822008-07-21 17:48:40 +000090
91 return 0;
92}
93
94int write_w39v040c(struct flashchip *flash, uint8_t *buf)
95{
96 int i;
97 int total_size = flash->total_size * 1024;
98 int page_size = flash->page_size;
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +000099 chipaddr bios = flash->virtual_memory;
Peter Stugecce26822008-07-21 17:48:40 +0000100
Carl-Daniel Hailfingerf38431a2009-09-05 02:30:58 +0000101 if (erase_flash(flash)) {
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +0000102 fprintf(stderr, "ERASE FAILED!\n");
Peter Stugecce26822008-07-21 17:48:40 +0000103 return -1;
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +0000104 }
Peter Stugecce26822008-07-21 17:48:40 +0000105
106 printf("Programming page: ");
107 for (i = 0; i < total_size / page_size; i++) {
108 printf("%04d at address: 0x%08x", i, i * page_size);
Sean Nelsonc57a9202010-01-04 17:15:23 +0000109 write_sector_jedec_common(flash, buf + i * page_size,
110 bios + i * page_size, page_size, 0xffff);
Peter Stugecce26822008-07-21 17:48:40 +0000111 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");
112 }
113 printf("\n");
114
115 return 0;
116}