src/southbridge/intel/sch/usb_client.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2009-2010 iWave Systems
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  18  */
  19
  20 #include <console/console.h>
  21 #include <device/device.h>
  22 #include <device/pci.h>
  23 #include <device/pci_ids.h>
  24 #include <arch/io.h>
  25
  26 static void usb_client_init(struct device *dev)
  27 {
  28         u32 reg32;
  29
  30         printk(BIOS_DEBUG, "USB Client: Setting up controller.. ");
  31         reg32 = pci_read_config32(dev, PCI_COMMAND);
  32         reg32 |= PCI_COMMAND_MASTER;
  33         reg32 |= PCI_COMMAND_MEMORY;
  34         pci_write_config32(dev, PCI_COMMAND, reg32);
  35         printk(BIOS_DEBUG, "done.\n");
  36 }
  37
  38 static void usb_client_set_subsystem(device_t dev, unsigned vendor, unsigned device)
  39 {
  40         if (!vendor || !device) {
  41                 pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
  42                                 pci_read_config32(dev, PCI_VENDOR_ID));
  43         } else {
  44                 pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
  45                                 ((device & 0xffff) << 16) | (vendor & 0xffff));
  46         }
  47 }
  48
  49 static struct pci_operations lops_pci = {
  50         .set_subsystem = &usb_client_set_subsystem,
  51 };
  52
  53 static struct device_operations usb_client_ops = {
  54         .read_resources         = pci_dev_read_resources,
  55         .set_resources          = pci_dev_set_resources,
  56         .enable_resources       = pci_dev_enable_resources,
  57         .init                   = usb_client_init,
  58         .scan_bus               = 0,
  59         .ops_pci                = &lops_pci,
  60 };
  61
  62 static const struct pci_driver sch_usb_client __pci_driver = {
  63         .ops    = &usb_client_ops,
  64         .vendor = PCI_VENDOR_ID_INTEL,
  65         .device = 0x8118,
  66 };