| Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * This file is part of the LinuxBIOS project. |
| 3 | * |
| 4 | * Copyright (C) 2007 AMD |
| 5 | * Written by Yinghai Lu <yinghai.lu@amd.com> for AMD. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | static unsigned get_sbdn(unsigned bus) |
| 23 | { |
| 24 | device_t dev; |
| 25 | |
| 26 | /* Find the device. |
| 27 | */ |
| 28 | dev = pci_locate_device_on_bus( |
| 29 | PCI_ID(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_SIS_SIS966_HT), |
| 30 | bus); |
| 31 | |
| 32 | return (dev>>15) & 0x1f; |
| 33 | |
| 34 | } |
| 35 | |
| 36 | static void hard_reset(void) |
| 37 | { |
| 38 | set_bios_reset(); |
| 39 | |
| 40 | /* full reset */ |
| 41 | outb(0x0a, 0x0cf9); |
| 42 | outb(0x0e, 0x0cf9); |
| 43 | } |
| 44 | static void enable_fid_change_on_sb(unsigned sbbusn, unsigned sbdn) |
| 45 | { |
| 46 | /* default value for sis966 is good */ |
| 47 | /* set VFSMAF ( VID/FID System Management Action Field) to 2 */ |
| 48 | |
| 49 | } |
| 50 | |
| 51 | static void soft_reset(void) |
| 52 | { |
| 53 | set_bios_reset(); |
| 54 | #if 1 |
| 55 | /* link reset */ |
| 56 | outb(0x02, 0x0cf9); |
| 57 | outb(0x06, 0x0cf9); |
| 58 | #endif |
| 59 | } |
| 60 | |