diff options
| author | Jon Dufresne <jon.dufresne@gmail.com> | 2006-12-28 12:00:58 +0000 |
|---|---|---|
| committer | Stefan Reinauer <stepan@openbios.org> | 2006-12-28 12:00:58 +0000 |
| commit | 9095e30f2dbac3c53a380a20d15d4698449dab20 (patch) | |
| tree | 57d7d7634cbaf50885d2010c250eb8151f6b056a /src/southbridge/intel/i82801db/i82801db_watchdog.c | |
| parent | a5fc22fd6b45e96534802dd1069060990f4077ff (diff) | |
A patch to add initial support for the i82801db southbridge based
heavily on the code for i82801dbm and i82801er
Signed-off-by: Jon Dufresne <jon.dufresne@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2534 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/southbridge/intel/i82801db/i82801db_watchdog.c')
| -rw-r--r-- | src/southbridge/intel/i82801db/i82801db_watchdog.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82801db/i82801db_watchdog.c b/src/southbridge/intel/i82801db/i82801db_watchdog.c new file mode 100644 index 0000000000..dab1c69f92 --- /dev/null +++ b/src/southbridge/intel/i82801db/i82801db_watchdog.c @@ -0,0 +1,46 @@ +/* + * This file is part of the LinuxBIOS project. + * + * 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. + * + * 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 <console/console.h> +#include <arch/io.h> +#include <device/device.h> +#include <device/pci.h> + +void watchdog_off(void) +{ + device_t dev; + unsigned long value,base; + + /* turn off the ICH5 watchdog */ + dev = dev_find_slot(0, PCI_DEVFN(0x1f,0)); + /* Enable I/O space */ + value = pci_read_config16(dev, 0x04); + value |= (1 << 10); + pci_write_config16(dev, 0x04, value); + /* Get TCO base */ + base = (pci_read_config32(dev, 0x40) & 0x0fffe) + 0x60; + /* Disable the watchdog timer */ + value = inw(base + 0x08); + value |= 1 << 11; + outw(value, base + 0x08); + /* Clear TCO timeout status */ + outw(0x0008, base + 0x04); + outw(0x0002, base + 0x06); + printk_debug("Watchdog ICH5 disabled\r\n"); +} + |