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Ronald G. Minnich5e8dfff2002-03-21 22:41:11 +00001/*
Uwe Hermannd1107642007-08-29 17:52:32 +00002 * This file is part of the flashrom project.
Ronald G. Minnich5e8dfff2002-03-21 22:41:11 +00003 *
4 * Copyright 2000 Silicon Integrated System Corporation
5 *
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. Minnich5e8dfff2002-03-21 22:41:11 +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. Minnich5e8dfff2002-03-21 22:41:11 +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. Minnich5e8dfff2002-03-21 22:41:11 +000019 */
20
Ronald G. Minnicheaab50b2003-09-12 22:41:53 +000021#include <stdio.h>
Ollie Lho184a4042005-11-26 21:55:36 +000022#include <stdint.h>
Ronald G. Minnich5e8dfff2002-03-21 22:41:11 +000023#include "flash.h"
Ronald G. Minnich5e8dfff2002-03-21 22:41:11 +000024
25#define AUTO_PG_ERASE1 0x20
26#define AUTO_PG_ERASE2 0xD0
Ronald G. Minnich5e8dfff2002-03-21 22:41:11 +000027
Ollie Lho184a4042005-11-26 21:55:36 +000028static __inline__ int erase_sector_39sf020(volatile uint8_t *bios,
Ollie Lho761bf1b2004-03-20 16:46:10 +000029 unsigned long address)
Ronald G. Minnich5e8dfff2002-03-21 22:41:11 +000030{
31 *bios = AUTO_PG_ERASE1;
32 *(bios + address) = AUTO_PG_ERASE2;
33
34 /* wait for Toggle bit ready */
35 toggle_ready_jedec(bios);
Ronald G. Minnicheaab50b2003-09-12 22:41:53 +000036
Uwe Hermannffec5f32007-08-23 16:08:21 +000037 return 0;
Ronald G. Minnich5e8dfff2002-03-21 22:41:11 +000038}
39
Ollie Lho184a4042005-11-26 21:55:36 +000040int write_39sf020(struct flashchip *flash, uint8_t *buf)
Ronald G. Minnich5e8dfff2002-03-21 22:41:11 +000041{
42 int i;
Uwe Hermann0b7afe62007-04-01 19:44:21 +000043 int total_size = flash->total_size * 1024;
44 int page_size = flash->page_size;
Stefan Reinauerce532972007-05-23 17:20:56 +000045 volatile uint8_t *bios = flash->virtual_memory;
Ronald G. Minnich5e8dfff2002-03-21 22:41:11 +000046
Ollie Lho761bf1b2004-03-20 16:46:10 +000047 erase_chip_jedec(flash);
Ollie Lhocf29de82004-03-18 19:40:07 +000048
Ollie Lho761bf1b2004-03-20 16:46:10 +000049 printf("Programming Page: ");
50 for (i = 0; i < total_size / page_size; i++) {
Ronald G. Minnich5e8dfff2002-03-21 22:41:11 +000051 /* write to the sector */
Ollie Lho761bf1b2004-03-20 16:46:10 +000052 printf("%04d at address: 0x%08x", i, i * page_size);
53 write_sector_jedec(bios, buf + i * page_size,
54 bios + i * page_size, page_size);
Ollie Lhoefa28582004-12-08 20:10:01 +000055 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");
Ollie Lho761bf1b2004-03-20 16:46:10 +000056 fflush(stdout);
Ronald G. Minnich5e8dfff2002-03-21 22:41:11 +000057 }
58 printf("\n");
59
Uwe Hermannffec5f32007-08-23 16:08:21 +000060 return 0;
Ronald G. Minnich5e8dfff2002-03-21 22:41:11 +000061}