| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2006 Jon Dufresne <jon.dufresne@gmail.com> |
| * |
| * 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. |
| */ |
| |
| #define MCH_DRC 0x70 |
| #define DRC_DONE (1 << 29) |
| |
| /* If I have already booted once skip a bunch of initialization */ |
| /* To see if I have already booted I check to see if memory |
| * has been enabled. |
| */ |
| static int bios_reset_detected(void) |
| { |
| uint32_t dword; |
| |
| dword = pci_read_config32(PCI_DEV(0, 0, 0), MCH_DRC); |
| |
| if( (dword & DRC_DONE) != 0 ) { |
| return 1; |
| } |
| |
| return 0; |
| } |