| 1 | /*␊ |
| 2 | * This file is part of the flashrom project.␊ |
| 3 | *␊ |
| 4 | * Copyright (C) 2004 Tyan Corporation␊ |
| 5 | * Copyright (C) 2007 Nikolay Petukhov <nikolay.petukhov@gmail.com>␊ |
| 6 | * Copyright (C) 2007 Reinder E.N. de Haan <lb_reha@mveas.com>␊ |
| 7 | *␊ |
| 8 | * This program is free software; you can redistribute it and/or modify␊ |
| 9 | * it under the terms of the GNU General Public License as published by␊ |
| 10 | * the Free Software Foundation; either version 2 of the License, or␊ |
| 11 | * (at your option) any later version.␊ |
| 12 | *␊ |
| 13 | * This program is distributed in the hope that it will be useful,␊ |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of␊ |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the␊ |
| 16 | * GNU General Public License for more details.␊ |
| 17 | *␊ |
| 18 | * You should have received a copy of the GNU General Public License␊ |
| 19 | * along with this program; if not, write to the Free Software␊ |
| 20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA␊ |
| 21 | */␊ |
| 22 | ␊ |
| 23 | #include "flash.h"␊ |
| 24 | ␊ |
| 25 | static void write_lockbits_49fl00x(const struct flashctx *flash,␊ |
| 26 | ␉␉␉␉ unsigned int size, unsigned char bits,␊ |
| 27 | ␉␉␉␉ unsigned int block_size)␊ |
| 28 | {␊ |
| 29 | ␉unsigned int i, left = size;␊ |
| 30 | ␉chipaddr bios = flash->virtual_registers;␊ |
| 31 | ␊ |
| 32 | ␉for (i = 0; left >= block_size; i++, left -= block_size) {␊ |
| 33 | ␉␉/* pm49fl002 */␊ |
| 34 | ␉␉if (block_size == 16384 && i % 2)␊ |
| 35 | ␉␉␉continue;␊ |
| 36 | ␊ |
| 37 | ␉␉chip_writeb(flash, bits, bios + (i * block_size) + 2);␊ |
| 38 | ␉}␊ |
| 39 | }␊ |
| 40 | ␊ |
| 41 | int unlock_49fl00x(struct flashctx *flash)␊ |
| 42 | {␊ |
| 43 | ␉write_lockbits_49fl00x(flash, flash->total_size * 1024, 0,␊ |
| 44 | ␉␉␉ flash->page_size);␊ |
| 45 | ␉return 0;␊ |
| 46 | }␊ |
| 47 | ␊ |
| 48 | int lock_49fl00x(struct flashctx *flash)␊ |
| 49 | {␊ |
| 50 | ␉write_lockbits_49fl00x(flash, flash->total_size * 1024, 1,␊ |
| 51 | ␉␉␉ flash->page_size);␊ |
| 52 | ␉return 0;␊ |
| 53 | }␊ |
| 54 | |
