Alec Ari | 0ae7131 | 2010-11-03 21:46:41 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2010 Alec Ari <neotheuser@ymail.com> |
| 5 | * |
| 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. |
| 10 | * |
| 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. |
| 15 | * |
| 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 |
Paul Menzel | a46a712 | 2013-02-23 18:37:27 +0100 | [diff] [blame] | 18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
Alec Ari | 0ae7131 | 2010-11-03 21:46:41 +0000 | [diff] [blame] | 19 | */ |
| 20 | |
| 21 | #include <stdint.h> |
Stefan Reinauer | 24d1d4b | 2013-03-21 11:51:41 -0700 | [diff] [blame] | 22 | #include <arch/io.h> |
Alec Ari | 0ae7131 | 2010-11-03 21:46:41 +0000 | [diff] [blame] | 23 | #include "f71889.h" |
| 24 | |
| 25 | static void pnp_enter_conf_state(device_t dev) |
| 26 | { |
| 27 | u16 port = dev >> 8; |
| 28 | outb(0x87, port); |
Zheng Bao | 27770c9 | 2010-11-05 07:59:06 +0000 | [diff] [blame] | 29 | outb(0x87, port); |
Alec Ari | 0ae7131 | 2010-11-03 21:46:41 +0000 | [diff] [blame] | 30 | } |
| 31 | |
| 32 | static void pnp_exit_conf_state(device_t dev) |
| 33 | { |
| 34 | u16 port = dev >> 8; |
| 35 | outb(0xaa, port); |
| 36 | } |
| 37 | |
| 38 | static void f71889_enable_serial(device_t dev, u16 iobase) |
| 39 | { |
| 40 | pnp_enter_conf_state(dev); |
| 41 | pnp_set_logical_device(dev); |
| 42 | pnp_set_enable(dev, 0); |
| 43 | pnp_set_iobase(dev, PNP_IDX_IO0, iobase); |
| 44 | pnp_set_enable(dev, 1); |
| 45 | pnp_exit_conf_state(dev); |
| 46 | } |