src/southbridge/nvidia/ck804/usb2.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2004 Tyan Computer
   5  * Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 #include <console/console.h>
  18 #include <device/device.h>
  19 #include <device/pci.h>
  20 #include <device/pci_ids.h>
  21 #include <device/pci_ops.h>
  22 #include "chip.h"
  23
  24 static void usb2_init(struct device *dev)
  25 {
  26         u32 dword;
  27
  28         dword = pci_read_config32(dev, 0xf8);
  29         dword |= 40;
  30         pci_write_config32(dev, 0xf8, dword);
  31 }
  32
  33 static struct device_operations usb2_ops = {
  34         .read_resources   = pci_dev_read_resources,
  35         .set_resources    = pci_dev_set_resources,
  36         .enable_resources = pci_dev_enable_resources,
  37         .init             = usb2_init,
  38         .scan_bus         = 0,
  39         .ops_pci          = &ck804_pci_ops,
  40 };
  41
  42 static const struct pci_driver usb2_driver __pci_driver = {
  43         .ops    = &usb2_ops,
  44         .vendor = PCI_VENDOR_ID_NVIDIA,
  45         .device = PCI_DEVICE_ID_NVIDIA_CK804_USB2,
  46 };