| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2005 Digital Design Corporation |
| * (Written by Steven J. Magnani <steve@digidescorp.com> for Digital Design) |
| * Copyright (C) 2007 Corey Osgood <corey.osgood@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. |
| * |
| * 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 "i82801bx.h" |
| |
| void i82801bx_enable(device_t dev) |
| { |
| u16 reg16, index; |
| device_t lpc_dev; |
| |
| /* Search for the 82801BA/BAM LPC device (D31:F0) on PCI bus 0. */ |
| lpc_dev = dev_find_slot(0, PCI_DEVFN(0x1f, 0)); |
| if (!lpc_dev) |
| return; |
| |
| index = PCI_FUNC(dev->path.pci.devfn); |
| |
| reg16 = pci_read_config16(lpc_dev, FUNC_DIS); |
| reg16 &= ~(1 << index); /* Enable device. */ |
| if (!dev->enabled) |
| reg16 |= (1 << index); /* Disable device, if desired. */ |
| pci_write_config16(lpc_dev, FUNC_DIS, reg16); |
| } |
| |
| struct chip_operations southbridge_intel_i82801bx_ops = { |
| CHIP_NAME("Intel ICH2 (82801Bx) Series Southbridge") |
| .enable_dev = i82801bx_enable, |
| }; |
