| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2004 Tyan Computer |
| * Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer. |
| * Copyright (C) 2006,2007 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. |
| */ |
| |
| #include <arch/io.h> |
| #include <reset.h> |
| |
| #define PCI_DEV(BUS, DEV, FN) ( \ |
| (((BUS) & 0xFFF) << 20) | \ |
| (((DEV) & 0x1F) << 15) | \ |
| (((FN) & 0x7) << 12)) |
| |
| static void pci_write_config32(pci_devfn_t dev, unsigned where, unsigned value) |
| { |
| unsigned addr; |
| addr = (dev>>4) | where; |
| outl(0x80000000 | (addr & ~3), 0xCF8); |
| outl(value, 0xCFC); |
| } |
| |
| static unsigned pci_read_config32(pci_devfn_t dev, unsigned where) |
| { |
| unsigned addr; |
| addr = (dev>>4) | where; |
| outl(0x80000000 | (addr & ~3), 0xCF8); |
| return inl(0xCFC); |
| } |
| |
| #include "../../../northbridge/amd/amdk8/reset_test.c" |
| |
| void hard_reset(void) |
| { |
| set_bios_reset(); |
| /* Try rebooting through port 0xcf9 */ |
| /* Actually it is not a real hard_reset --- it only reset coherent link table, but not reset link freq and width */ |
| outb((0 <<3)|(0<<2)|(1<<1), 0xcf9); |
| outb((0 <<3)|(1<<2)|(1<<1), 0xcf9); |
| } |