/* * This file is part of the coreboot project. * * Copyright (C) 2008-2009 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; version 2 of * the License. * * 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 <device/device.h> #include <device/pci.h> #include <device/pci_ids.h> #include "i82801ix.h" static void pci_init(struct device *dev) { u16 reg16; u8 reg8; /* This device has no interrupt */ pci_write_config8(dev, PCI_INTERRUPT_LINE, 0xff); /* Master Latency Count must be set to 0x04! */ reg8 = pci_read_config8(dev, D30F0_SMLT); reg8 &= 0x07; reg8 |= (0x04 << 3); pci_write_config8(dev, D30F0_SMLT, reg8); /* Clear errors in status registers */ reg16 = pci_read_config16(dev, PCI_STATUS); //reg16 |= 0xf900; pci_write_config16(dev, PCI_STATUS, reg16); reg16 = pci_read_config16(dev, PCI_SEC_STATUS); // reg16 |= 0xf900; pci_write_config16(dev, PCI_SEC_STATUS, reg16); } static void set_subsystem(device_t dev, unsigned vendor, unsigned device) { /* NOTE: 0x54 is not the default position! */ if (!vendor || !device) { pci_write_config32(dev, 0x54, pci_read_config32(dev, PCI_VENDOR_ID)); } else { pci_write_config32(dev, 0x54, ((device & 0xffff) << 16) | (vendor & 0xffff)); } } static struct pci_operations pci_ops = { .set_subsystem = set_subsystem, }; static struct device_operations device_ops = { .read_resources = pci_bus_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_bus_enable_resources, .init = pci_init, .scan_bus = pci_scan_bridge, .reset_bus = pci_bus_reset, .ops_pci = &pci_ops, }; static const unsigned short pci_device_ids[] = { 0x244e, /* Desktop */ 0x2448, /* Mobile */ 0 }; static const struct pci_driver ich9_pci __pci_driver = { .ops = &device_ops, .vendor = PCI_VENDOR_ID_INTEL, .devices = pci_device_ids, };