xref: /linux/arch/mips/pci/fixup-sb1250.c (revision cc04a46f11ea046ed53e2c832ae29e4790f7e35f)
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/pci.h>
12 
13 /*
14  * Set the BCM1250, etc. PCI host bridge's TRDY timeout
15  * to the finite max.
16  */
17 static void quirk_sb1250_pci(struct pci_dev *dev)
18 {
19 	pci_write_config_byte(dev, 0x40, 0xff);
20 }
21 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SIBYTE, PCI_DEVICE_ID_BCM1250_PCI,
22 			quirk_sb1250_pci);
23 
24 /*
25  * The BCM1250, etc. PCI/HT bridge reports as a host bridge.
26  */
27 static void quirk_sb1250_ht(struct pci_dev *dev)
28 {
29 	dev->class = PCI_CLASS_BRIDGE_PCI << 8;
30 }
31 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SIBYTE, PCI_DEVICE_ID_BCM1250_HT,
32 			quirk_sb1250_ht);
33 
34 /*
35  * Set the SP1011 HT/PCI bridge's TRDY timeout to the finite max.
36  */
37 static void quirk_sp1011(struct pci_dev *dev)
38 {
39 	pci_write_config_byte(dev, 0x64, 0xff);
40 }
41 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SIPACKETS, PCI_DEVICE_ID_SP1011,
42 			quirk_sp1011);
43