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/*
* This file is part of the flashrom project.
*
* Copyright (C) 2008 Peter Stuge <peter@stuge.se>
*
* 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 "flash.h"
#include "chipdrivers.h"
int printlock_w39v040c(struct flashchip *flash)
{
chipaddr bios = flash->virtual_memory;
uint8_t lock;
chip_writeb(0xAA, bios + 0x5555);
programmer_delay(10);
chip_writeb(0x55, bios + 0x2AAA);
programmer_delay(10);
chip_writeb(0x90, bios + 0x5555);
programmer_delay(10);
lock = chip_readb(bios + 0xfff2);
chip_writeb(0xAA, bios + 0x5555);
programmer_delay(10);
chip_writeb(0x55, bios + 0x2AAA);
programmer_delay(10);
chip_writeb(0xF0, bios + 0x5555);
programmer_delay(40);
msg_cdbg("%s: Boot block #TBL is %slocked, rest of chip #WP is %slocked.\n",
__func__, lock & 0x4 ? "" : "un", lock & 0x8 ? "" : "un");
return 0;
}
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