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/*
* 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,
};
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