| /* |
| * This file is part of the coreboot project. |
| * |
| * (C) 2008-2009 coresystems GmbH |
| * |
| * 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; version 2 of |
| * the License. |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "i82801gx.h" |
| |
| #define RTC_FAILED (1 << 2) |
| #define GEN_PMCON_3 0xa4 |
| |
| static void check_cmos_failed(void) |
| { |
| u8 byte = pci_read_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_3); |
| if (byte & RTC_FAILED) { |
| // clear bit 1 and bit 2 |
| byte = cmos_read(RTC_BOOT_BYTE); |
| byte &= 0x0c; |
| byte |= CONFIG_MAX_REBOOT_CNT << 4; |
| cmos_write(byte, RTC_BOOT_BYTE); |
| } |
| } |