blob: ed454077415dc76694430563069acad7434d193c [file] [log] [blame]
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +00001/*
Uwe Hermannd1107642007-08-29 17:52:32 +00002 * This file is part of the flashrom project.
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +00003 *
Uwe Hermannd22a1d42007-09-09 20:21:05 +00004 * Copyright (C) 2000 Silicon Integrated System Corporation
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +00005 *
Uwe Hermannd1107642007-08-29 17:52:32 +00006 * 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.
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000010 *
Uwe Hermannd1107642007-08-29 17:52:32 +000011 * 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.
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000015 *
Uwe Hermannd1107642007-08-29 17:52:32 +000016 * 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
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000019 */
20
Uwe Hermannd1107642007-08-29 17:52:32 +000021/* Adapted from the Intel FW hub stuff for 82802ax parts. */
22
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000023#include "flash.h"
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000024
25// I need that Berkeley bit-map printer
Ollie Lho184a4042005-11-26 21:55:36 +000026void print_sst_fwhub_status(uint8_t status)
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000027{
28 printf("%s", status & 0x80 ? "Ready:" : "Busy:");
29 printf("%s", status & 0x40 ? "BE SUSPEND:" : "BE RUN/FINISH:");
30 printf("%s", status & 0x20 ? "BE ERROR:" : "BE OK:");
31 printf("%s", status & 0x10 ? "PROG ERR:" : "PROG OK:");
32 printf("%s", status & 0x8 ? "VP ERR:" : "VPP OK:");
33 printf("%s", status & 0x4 ? "PROG SUSPEND:" : "PROG RUN/FINISH:");
34 printf("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:");
35}
36
Carl-Daniel Hailfingerd0fc9462009-05-11 14:01:17 +000037int check_sst_fwhub_block_lock(struct flashchip *flash, int offset)
38{
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +000039 chipaddr registers = flash->virtual_registers;
Carl-Daniel Hailfingerd0fc9462009-05-11 14:01:17 +000040 uint8_t blockstatus;
41
42 blockstatus = chip_readb(registers + offset + 2);
43 printf_debug("Lock status for 0x%06x (size 0x%06x) is %02x, ",
44 offset, flash->page_size, blockstatus);
45 switch (blockstatus & 0x3) {
46 case 0x0:
47 printf_debug("full access\n");
48 break;
49 case 0x1:
50 printf_debug("write locked\n");
51 break;
52 case 0x2:
53 printf_debug("locked open\n");
54 break;
55 case 0x3:
56 printf_debug("write locked down\n");
57 break;
58 }
59 /* Return content of the write_locked bit */
60 return blockstatus & 0x1;
61}
62
63int clear_sst_fwhub_block_lock(struct flashchip *flash, int offset)
64{
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +000065 chipaddr registers = flash->virtual_registers;
Carl-Daniel Hailfingerd0fc9462009-05-11 14:01:17 +000066 uint8_t blockstatus;
67
68 blockstatus = check_sst_fwhub_block_lock(flash, offset);
69
70 if (blockstatus) {
71 printf_debug("Trying to clear lock for 0x%06x... ", offset)
72 chip_writeb(0, registers + offset + 2);
73
74 blockstatus = check_sst_fwhub_block_lock(flash, offset);
75 printf_debug("%s\n", (blockstatus) ? "failed" : "OK");
76 }
77
78 return blockstatus;
79}
80
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000081/* probe_jedec works fine for probing */
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000082int probe_sst_fwhub(struct flashchip *flash)
83{
Carl-Daniel Hailfingerd0fc9462009-05-11 14:01:17 +000084 int i;
85
Ollie Lhoefa28582004-12-08 20:10:01 +000086 if (probe_jedec(flash) == 0)
Ollie Lho98bea8a2004-12-07 03:15:51 +000087 return 0;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000088
Stefan Reinauerff4f1972007-05-24 08:48:10 +000089 map_flash_registers(flash);
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000090
Carl-Daniel Hailfingerd0fc9462009-05-11 14:01:17 +000091 for (i = 0; i < flash->total_size * 1024; i += flash->page_size)
92 check_sst_fwhub_block_lock(flash, i);
93
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000094 return 1;
95}
96
Carl-Daniel Hailfingera06287c2009-09-23 22:01:33 +000097int erase_sst_fwhub_block(struct flashchip *flash, unsigned int offset, unsigned int page_size)
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000098{
Carl-Daniel Hailfingerd0fc9462009-05-11 14:01:17 +000099 uint8_t blockstatus = clear_sst_fwhub_block_lock(flash, offset);
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000100
Carl-Daniel Hailfingerd0fc9462009-05-11 14:01:17 +0000101 if (blockstatus) {
102 printf("Block lock clearing failed, not erasing block "
103 "at 0x%06x\n", offset);
104 return 1;
105 }
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000106
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +0000107 if (erase_block_jedec(flash, offset, page_size)) {
108 fprintf(stderr, "ERASE FAILED!\n");
109 return -1;
110 }
Stefan Reinauerce532972007-05-23 17:20:56 +0000111 toggle_ready_jedec(flash->virtual_memory);
Ollie Lho1b8b6602004-12-08 02:10:33 +0000112
Uwe Hermannffec5f32007-08-23 16:08:21 +0000113 return 0;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000114}
115
116int erase_sst_fwhub(struct flashchip *flash)
117{
118 int i;
119 unsigned int total_size = flash->total_size * 1024;
120
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +0000121 for (i = 0; i < total_size; i += flash->page_size) {
122 if (erase_sst_fwhub_block(flash, i, flash->page_size)) {
123 fprintf(stderr, "ERASE FAILED!\n");
Stefan Reinauerb7c83232008-03-16 19:44:13 +0000124 return -1;
125 }
126 }
127
Uwe Hermannffec5f32007-08-23 16:08:21 +0000128 return 0;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000129}
130
Ollie Lho184a4042005-11-26 21:55:36 +0000131int write_sst_fwhub(struct flashchip *flash, uint8_t *buf)
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000132{
133 int i;
Uwe Hermann0b7afe62007-04-01 19:44:21 +0000134 int total_size = flash->total_size * 1024;
135 int page_size = flash->page_size;
Carl-Daniel Hailfinger5820f422009-05-16 21:22:56 +0000136 chipaddr bios = flash->virtual_memory;
Carl-Daniel Hailfingerd0fc9462009-05-11 14:01:17 +0000137 uint8_t blockstatus;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000138
Stefan Reinauere60fd352006-11-07 13:48:46 +0000139 // FIXME: We want block wide erase instead of ironing the whole chip
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +0000140 if (erase_sst_fwhub(flash)) {
141 fprintf(stderr, "ERASE FAILED!\n");
Stefan Reinauerb7c83232008-03-16 19:44:13 +0000142 return -1;
Carl-Daniel Hailfinger30f7cb22009-06-15 17:23:36 +0000143 }
Stefan Reinauere60fd352006-11-07 13:48:46 +0000144
Uwe Hermanna502dce2007-10-17 23:55:15 +0000145 printf("Programming page: ");
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000146 for (i = 0; i < total_size / page_size; i++) {
147 printf("%04d at address: 0x%08x", i, i * page_size);
Carl-Daniel Hailfingerd0fc9462009-05-11 14:01:17 +0000148 blockstatus = clear_sst_fwhub_block_lock(flash, i * page_size);
149 if (blockstatus) {
150 printf(" is locked down permanently, aborting\n");
151 return 1;
152 }
Ollie Lhoefa28582004-12-08 20:10:01 +0000153 write_sector_jedec(bios, buf + i * page_size,
154 bios + i * page_size, page_size);
Ollie Lho1b8b6602004-12-08 02:10:33 +0000155 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. Minnich1f4d6532004-09-30 16:37:01 +0000156 }
157 printf("\n");
Uwe Hermannffec5f32007-08-23 16:08:21 +0000158
159 return 0;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000160}