1/* 2 * This file is part of the coreboot project. 3 * 4 * Copyright (C) 2007 AMD 5 * Written by Yinghai Lu <yinghai.lu@amd.com> for AMD. 6 * Copyright (C) 2008 Peter Stuge <peter@stuge.se> 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 <io.h> 24#include <device/pnp.h> 25#include "it8716f.h" 26 27static void enter_ext(u8 dev) 28{ 29 outb(0x87, dev); 30 outb(0x01, dev); 31 outb(0x55, dev); 32 outb(0x4e == dev ? 0xaa : 0x55, dev); 33} 34 35void it8716f_enable_serial(u8 dev, u8 serial, u16 iobase) 36{ 37 enter_ext(dev); 38 rawpnp_set_logical_device(dev, serial); 39 rawpnp_set_enable(dev, 0); 40 rawpnp_set_iobase(dev, PNP_IDX_IO0, iobase); 41 rawpnp_set_enable(dev, 1); 42 rawpnp_write_config(dev, 0x02, 0x02); 43} 44