arch/mips/pci/fixup-sb1250.c

   1 /*
   2  *      arch/mips/pci/fixup-sb1250.c
   3  *
   4  *      Copyright (C) 2004, 2006  MIPS Technologies, Inc.  All rights reserved.
   5  *          Author:     Maciej W. Rozycki <macro@mips.com>
   6  *
   7  *      This program is free software; you can redistribute it and/or
   8  *      modify it under the terms of the GNU General Public License
   9  *      as published by the Free Software Foundation; either version
  10  *      2 of the License, or (at your option) any later version.
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/pci.h>
  15
  16 /*
  17  * Set the BCM1250, etc. PCI host bridge's TRDY timeout
  18  * to the finite max.
  19  */
  20 static void __init quirk_sb1250_pci(struct pci_dev *dev)
  21 {
  22         pci_write_config_byte(dev, 0x40, 0xff);
  23 }
  24 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SIBYTE, PCI_DEVICE_ID_BCM1250_PCI,
  25                         quirk_sb1250_pci);
  26
  27 /*
  28  * The BCM1250, etc. PCI/HT bridge reports as a host bridge.
  29  */
  30 static void __init quirk_sb1250_ht(struct pci_dev *dev)
  31 {
  32         dev->class = PCI_CLASS_BRIDGE_PCI << 8;
  33 }
  34 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SIBYTE, PCI_DEVICE_ID_BCM1250_HT,
  35                         quirk_sb1250_ht);
  36
  37 /*
  38  * Set the SP1011 HT/PCI bridge's TRDY timeout to the finite max.
  39  */
  40 static void __init quirk_sp1011(struct pci_dev *dev)
  41 {
  42         pci_write_config_byte(dev, 0x64, 0xff);
  43 }
  44 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SIPACKETS, PCI_DEVICE_ID_SP1011,
  45                         quirk_sp1011);