diff options
Diffstat (limited to 'src/southbridge/intel/i82801bx/pci.c')
-rw-r--r-- | src/southbridge/intel/i82801bx/pci.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82801bx/pci.c b/src/southbridge/intel/i82801bx/pci.c new file mode 100644 index 0000000000..828a668197 --- /dev/null +++ b/src/southbridge/intel/i82801bx/pci.c @@ -0,0 +1,55 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2005 Tyan Computer + * (Written by Yinghai Lu <yinghailu@gmail.com> for Tyan Computer) + * + * 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 <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include "i82801bx.h" + +static void pci_init(struct device *dev) +{ + u16 reg16; + + /* Clear system errors */ + reg16 = pci_read_config16(dev, PCI_STATUS); + reg16 |= 0xf900; /* Clear possible errors */ + pci_write_config16(dev, PCI_STATUS, reg16); + + reg16 = pci_read_config16(dev, SECSTS); + reg16 |= 0xf800; /* Clear possible errors */ + pci_write_config16(dev, SECSTS, reg16); +} + +static struct device_operations pci_ops = { + .read_resources = pci_bus_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_bus_enable_resources, + .init = pci_init, + .scan_bus = pci_scan_bridge, +}; + +/* 82801BA/BAM (ICH2/ICH2-M) */ +static const struct pci_driver i82801misc_pci __pci_driver = { + .ops = &pci_ops, + .vendor = PCI_VENDOR_ID_INTEL, + .device = 0x244e, +}; |