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path: root/src/superio/winbond/w83627ehg/early_serial.c
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/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2007 AMD
 * Written by Yinghai Lu <yinghai.lu@amd.com> for AMD.
 *
 * 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.
 */

#include <arch/io.h>
#include <device/pnp.h>
#include "w83627ehg.h"

void pnp_enter_ext_func_mode(pnp_devfn_t dev)
{
	u16 port = dev >> 8;
	outb(0x87, port);
	outb(0x87, port);
}

void pnp_exit_ext_func_mode(pnp_devfn_t dev)
{
	u16 port = dev >> 8;
	outb(0xaa, port);
}