| zbao | ea71e81 | 2012-08-02 18:36:36 +0800 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2012 Advanced Micro Devices, Inc. |
| 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; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | #include <arch/io.h> /*inb, outb*/ |
| 21 | #include "pmio.h" |
| 22 | |
| 23 | static void pmio_write_index(u16 port_base, u8 reg, u8 value) |
| 24 | { |
| 25 | outb(reg, port_base); |
| 26 | outb(value, port_base + 1); |
| 27 | } |
| 28 | |
| 29 | static u8 pmio_read_index(u16 port_base, u8 reg) |
| 30 | { |
| 31 | outb(reg, port_base); |
| 32 | return inb(port_base + 1); |
| 33 | } |
| 34 | |
| 35 | void pm_iowrite(u8 reg, u8 value) |
| 36 | { |
| 37 | pmio_write_index(PM_INDEX, reg, value); |
| 38 | } |
| 39 | |
| 40 | u8 pm_ioread(u8 reg) |
| 41 | { |
| 42 | return pmio_read_index(PM_INDEX, reg); |
| 43 | } |
| 44 | |
| 45 | void pm2_iowrite(u8 reg, u8 value) |
| 46 | { |
| 47 | pmio_write_index(PM2_INDEX, reg, value); |
| 48 | } |
| 49 | |
| 50 | u8 pm2_ioread(u8 reg) |
| 51 | { |
| 52 | return pmio_read_index(PM2_INDEX, reg); |
| 53 | } |