sst49lf040.c

/*
 * This file is part of the flashrom project.
 *
 * Copyright 2000 Silicon Integrated System Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#include <stdio.h>
#include "flash.h"

int erase_49lf040(struct flashchip *flash)
{
	int i;
	int total_size = flash->total_size * 1024;
	int page_size = flash->page_size;
	volatile uint8_t *bios = flash->virtual_memory;

	for (i = 0; i < total_size / page_size; i++) {
		/* Chip erase only works in parallel programming mode
		 * for the 49lf040. Use sector-erase instead */
		erase_sector_jedec(bios, i * page_size);
	}

	return 0;
}

int write_49lf040(struct flashchip *flash, uint8_t *buf)
{
	int i;
	int total_size = flash->total_size * 1024;
	int page_size = flash->page_size;
	volatile uint8_t *bios = flash->virtual_memory;

	printf("Programming Page: ");
	for (i = 0; i < total_size / page_size; i++) {
		/* erase the page before programming
		 * Chip erase only works in parallel programming mode
		 * for the 49lf040. Use sector-erase instead */
		erase_sector_jedec(bios, i * page_size);

		/* write to the sector */
		printf("%04d at address: 0x%08x ", i, i * page_size);

		write_sector_jedec(bios, buf + i * page_size,
				   bios + i * page_size, page_size);

		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\b");
		fflush(stdout);
	}
	printf("\n");

	return 0;
}