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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 <stdio.h>
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000024#include "flash.h"
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000025
26// I need that Berkeley bit-map printer
Ollie Lho184a4042005-11-26 21:55:36 +000027void print_sst_fwhub_status(uint8_t status)
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000028{
29 printf("%s", status & 0x80 ? "Ready:" : "Busy:");
30 printf("%s", status & 0x40 ? "BE SUSPEND:" : "BE RUN/FINISH:");
31 printf("%s", status & 0x20 ? "BE ERROR:" : "BE OK:");
32 printf("%s", status & 0x10 ? "PROG ERR:" : "PROG OK:");
33 printf("%s", status & 0x8 ? "VP ERR:" : "VPP OK:");
34 printf("%s", status & 0x4 ? "PROG SUSPEND:" : "PROG RUN/FINISH:");
35 printf("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:");
36}
37
38/* probe_jedec works fine for probing */
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000039int probe_sst_fwhub(struct flashchip *flash)
40{
Ollie Lhoefa28582004-12-08 20:10:01 +000041 if (probe_jedec(flash) == 0)
Ollie Lho98bea8a2004-12-07 03:15:51 +000042 return 0;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000043
Stefan Reinauerff4f1972007-05-24 08:48:10 +000044 map_flash_registers(flash);
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000045
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000046 return 1;
47}
48
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000049int erase_sst_fwhub_block(struct flashchip *flash, int offset)
50{
Stefan Reinauerce532972007-05-23 17:20:56 +000051 volatile uint8_t *wrprotect = flash->virtual_registers + offset + 2;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000052
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000053 // clear write protect
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000054 *(wrprotect) = 0;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000055
Stefan Reinauerce532972007-05-23 17:20:56 +000056 erase_block_jedec(flash->virtual_memory, offset);
57 toggle_ready_jedec(flash->virtual_memory);
Ollie Lho1b8b6602004-12-08 02:10:33 +000058
Uwe Hermannffec5f32007-08-23 16:08:21 +000059 return 0;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000060}
61
62int erase_sst_fwhub(struct flashchip *flash)
63{
64 int i;
65 unsigned int total_size = flash->total_size * 1024;
66
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000067 for (i = 0; i < total_size; i += flash->page_size)
68 erase_sst_fwhub_block(flash, i);
Uwe Hermannffec5f32007-08-23 16:08:21 +000069
70 return 0;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000071}
72
Ollie Lho184a4042005-11-26 21:55:36 +000073int write_sst_fwhub(struct flashchip *flash, uint8_t *buf)
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000074{
75 int i;
Uwe Hermann0b7afe62007-04-01 19:44:21 +000076 int total_size = flash->total_size * 1024;
77 int page_size = flash->page_size;
Stefan Reinauerce532972007-05-23 17:20:56 +000078 volatile uint8_t *bios = flash->virtual_memory;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000079
Stefan Reinauere60fd352006-11-07 13:48:46 +000080 // FIXME: We want block wide erase instead of ironing the whole chip
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000081 erase_sst_fwhub(flash);
Uwe Hermann0b7afe62007-04-01 19:44:21 +000082
Stefan Reinauere60fd352006-11-07 13:48:46 +000083 // dumb check if erase was successful.
Uwe Hermann0b7afe62007-04-01 19:44:21 +000084 for (i = 0; i < total_size; i++) {
Stefan Reinauere60fd352006-11-07 13:48:46 +000085 if (bios[i] != 0xff) {
Uwe Hermanna502dce2007-10-17 23:55:15 +000086 printf("ERASE FAILED!\n");
Stefan Reinauere60fd352006-11-07 13:48:46 +000087 return -1;
88 }
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000089 }
Stefan Reinauere60fd352006-11-07 13:48:46 +000090
Uwe Hermanna502dce2007-10-17 23:55:15 +000091 printf("Programming page: ");
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +000092 for (i = 0; i < total_size / page_size; i++) {
93 printf("%04d at address: 0x%08x", i, i * page_size);
Ollie Lhoefa28582004-12-08 20:10:01 +000094 write_sector_jedec(bios, buf + i * page_size,
95 bios + i * page_size, page_size);
Ollie Lho1b8b6602004-12-08 02:10:33 +000096 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 +000097 }
98 printf("\n");
Uwe Hermannffec5f32007-08-23 16:08:21 +000099
100 return 0;
Ronald G. Minnich1f4d6532004-09-30 16:37:01 +0000101}