/* * This file is part of the coreboot project. * * Copyright (C) 2008 Arastra, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * 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 <device/device.h> #include <device/path.h> #include <device/pci.h> #include <device/pci_ids.h> #include <device/pci_ops.h> #include <device/smbus.h> #include <arch/io.h> #include "i3100.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 int lsmbus_write_byte(device_t dev, u8 address, u8 byte) { 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_write_byte(res->base, device, address, byte); } static struct smbus_bus_operations lops_smbus_bus = { .read_byte = lsmbus_read_byte, .write_byte = lsmbus_write_byte, }; static void smbus_set_subsystem(device_t dev, unsigned vendor, unsigned device) { pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID, ((device & 0xffff) << 16) | (vendor & 0xffff)); } static struct pci_operations lops_pci = { .set_subsystem = &smbus_set_subsystem, }; 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 = i3100_enable, .ops_pci = &lops_pci, .ops_smbus_bus = &lops_smbus_bus, }; static const struct pci_driver smbus_driver __pci_driver = { .ops = &smbus_ops, .vendor = PCI_VENDOR_ID_INTEL, .device = PCI_DEVICE_ID_INTEL_3100_SMB, }; static const struct pci_driver smbus_driver_ep80579 __pci_driver = { .ops = &smbus_ops, .vendor = PCI_VENDOR_ID_INTEL, .device = PCI_DEVICE_ID_INTEL_EP80579_SMB, };