2 * This file is part of the flashrom project.
4 * Copyright (C) 2000 Silicon Integrated System Corporation
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.
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.
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
25 #define AUTO_PG_ERASE1 0x20
26 #define AUTO_PG_ERASE2 0xD0
28 static __inline__ int erase_sector_39sf020(volatile uint8_t *bios,
29 unsigned long address)
31 *bios = AUTO_PG_ERASE1;
32 *(bios + address) = AUTO_PG_ERASE2;
34 /* wait for Toggle bit ready */
35 toggle_ready_jedec(bios);
40 int write_39sf020(struct flashchip *flash, uint8_t *buf)
43 int total_size = flash->total_size * 1024;
44 int page_size = flash->page_size;
45 volatile uint8_t *bios = flash->virtual_memory;
47 erase_chip_jedec(flash);
49 printf("Programming page: ");
50 for (i = 0; i < total_size / page_size; i++) {
51 /* write to the sector */
52 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);
55 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");