| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2008 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; 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 <stdint.h> |
| #include <smbus.h> |
| #include <pci.h> |
| #include <pci_ids.h> |
| #include <arch/io.h> |
| #include "i82801gx.h" |
| #include "i82801_smbus.h" |
| |
| static int smbus_read_byte(struct bus *bus, device_t dev, u8 address) |
| { |
| u16 device; |
| struct resource *res; |
| |
| device = dev->path.u.i2c.device; |
| res = find_resource(bus->dev, 0x20); |
| |
| return do_smbus_read_byte(res->base, device, address); |
| } |
| |
| static struct smbus_bus_operations lops_smbus_bus = { |
| .read_byte = smbus_read_byte, |
| }; |
| |
| static struct device_operations smbus_ops = { |
| .read_resources = pci_dev_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = 0, |
| .scan_bus = scan_static_bus, |
| .enable = i82801gx_enable, |
| .ops_smbus_bus = &lops_smbus_bus, |
| }; |
| |
| /* 82801GB/GR/GDH/GBM/GHM/GU (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH/ICH7-U) */ |
| static const struct pci_driver i82801gx_smbus __pci_driver = { |
| .ops = &smbus_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .device = 0x27da, |
| }; |