xref: /openbmc/linux/arch/mips/pci/fixup-sb1250.c (revision 95e9fd10)
1 /*
2  *	Copyright (C) 2004, 2006  MIPS Technologies, Inc.  All rights reserved.
3  *	    Author:	Maciej W. Rozycki <macro@mips.com>
4  *
5  *	This program is free software; you can redistribute it and/or
6  *	modify it under the terms of the GNU General Public License
7  *	as published by the Free Software Foundation; either version
8  *	2 of the License, or (at your option) any later version.
9  */
10 
11 #include <linux/init.h>
12 #include <linux/pci.h>
13 
14 /*
15  * Set the BCM1250, etc. PCI host bridge's TRDY timeout
16  * to the finite max.
17  */
18 static void __devinit quirk_sb1250_pci(struct pci_dev *dev)
19 {
20 	pci_write_config_byte(dev, 0x40, 0xff);
21 }
22 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SIBYTE, PCI_DEVICE_ID_BCM1250_PCI,
23 			quirk_sb1250_pci);
24 
25 /*
26  * The BCM1250, etc. PCI/HT bridge reports as a host bridge.
27  */
28 static void __devinit quirk_sb1250_ht(struct pci_dev *dev)
29 {
30 	dev->class = PCI_CLASS_BRIDGE_PCI << 8;
31 }
32 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SIBYTE, PCI_DEVICE_ID_BCM1250_HT,
33 			quirk_sb1250_ht);
34 
35 /*
36  * Set the SP1011 HT/PCI bridge's TRDY timeout to the finite max.
37  */
38 static void __devinit quirk_sp1011(struct pci_dev *dev)
39 {
40 	pci_write_config_byte(dev, 0x64, 0xff);
41 }
42 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SIPACKETS, PCI_DEVICE_ID_SP1011,
43 			quirk_sp1011);
44