| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2005 Yinghai Lu <yinghailu@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. |
| */ |
| |
| #include <stdint.h> |
| #include <device/smbus.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <arch/io.h> |
| #include "i82801ax.h" |
| #include "smbus.h" |
| |
| static int lsmbus_read_byte(device_t dev, u8 address) |
| { |
| u16 device; |
| struct resource *res; |
| struct bus *pbus; |
| |
| device = dev->path.i2c.device; |
| pbus = get_pbus_smbus(dev); |
| res = find_resource(pbus->dev, 0x20); |
| |
| return do_smbus_read_byte(res->base, device, address); |
| } |
| |
| static struct smbus_bus_operations lops_smbus_bus = { |
| .read_byte = lsmbus_read_byte, |
| }; |
| |
| static const 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_smbus, |
| .enable = i82801ax_enable, |
| .ops_smbus_bus = &lops_smbus_bus, |
| }; |
| |
| /* 82801AA (ICH) */ |
| static const struct pci_driver i82801aa_smb __pci_driver = { |
| .ops = &smbus_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .device = PCI_DEVICE_ID_INTEL_82801AA_SMB, |
| }; |
| |
| /* 82801AB (ICH0) */ |
| static const struct pci_driver i82801ab_smb __pci_driver = { |
| .ops = &smbus_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .device = PCI_DEVICE_ID_INTEL_82801AB_SMB, |
| }; |