diff options
Diffstat (limited to 'src/southbridge/intel/i82801db/i82801db.c')
| -rw-r--r-- | src/southbridge/intel/i82801db/i82801db.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82801db/i82801db.c b/src/southbridge/intel/i82801db/i82801db.c new file mode 100644 index 0000000000..85085aeaac --- /dev/null +++ b/src/southbridge/intel/i82801db/i82801db.c @@ -0,0 +1,64 @@ +/* + * 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 <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include "i82801db.h" + +void i82801db_enable(device_t dev) +{ + device_t lpc_dev; + uint16_t word; + + printk_debug("Entering %s\n", __FUNCTION__); + /* See if we are behind the i82801db pci bridge + lpc_dev = dev_find_slot(dev->bus->secondary, PCI_DEVFN(0x1f, 0)); + */ + lpc_dev = dev_find_slot(0, PCI_DEVFN(0x1f, 0)); + if (!lpc_dev) { + return; + } + + word = 0x0040; + pci_write_config16(lpc_dev, 0xf2, word); + /* + if((dev->path.u.pci.devfn &0xf8)== 0xf8) { + index = dev->path.u.pci.devfn & 7; + } + else if((dev->path.u.pci.devfn &0xf8)== 0xe8) { + index = (dev->path.u.pci.devfn & 7) +8; + } + + reg = reg_old = pci_read_config16(lpc_dev, 0xf2); + reg &= ~(1 << index); + if (!dev->enabled) { + reg |= (1 << index); + } + if (reg != reg_old) { + printk_debug("Trying to enable device, [0:1f:0] reg 0xf2 <- %04x\n", reg); + pci_write_config16(lpc_dev, 0xf2, reg); + } + */ +} + +struct chip_operations southbridge_intel_i82801db_ops = { + CHIP_NAME("Intel 82801DB Southbridge") + .enable_dev = i82801db_enable, +}; |