1 /*
2 *
3 * BRIEF MODULE DESCRIPTION
4 * EV96100 Board specific pci fixups.
5 *
6 * Copyright 2001 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc.
8 * ppopov@mvista.com or source@mvista.com
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
16 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
17 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
18 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
21 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
22 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * You should have received a copy of the GNU General Public License along
27 * with this program; if not, write to the Free Software Foundation, Inc.,
28 * 675 Mass Ave, Cambridge, MA 02139, USA.
29 */
30 #include <linux/types.h>
31 #include <linux/pci.h>
32 #include <linux/kernel.h>
33 #include <linux/init.h>
34 #include <linux/pci_ids.h>
35
36 #include <asm/gt64120/gt64120.h>
37
38 extern unsigned short get_gt_devid(void);
39
pcibios_fixup_resources(struct pci_dev * dev)40 void __init pcibios_fixup_resources(struct pci_dev *dev)
41 {
42 }
43
pcibios_fixup(void)44 void __init pcibios_fixup(void)
45 {
46 }
47
pcibios_fixup_irqs(void)48 void __init pcibios_fixup_irqs(void)
49 {
50 struct pci_dev *dev;
51 unsigned int slot;
52 u32 vendor;
53 unsigned short gt_devid = get_gt_devid();
54
55 /*
56 ** EV96100/A interrupt routing for pci bus 0
57 **
58 ** Note: EV96100A board with irq jumper set on 'VxWorks'
59 ** for EV96100 compatibility.
60 */
61
62 pci_for_each_dev(dev) {
63 if (dev->bus->number != 0)
64 return;
65
66 slot = PCI_SLOT(dev->devfn);
67 pci_read_config_dword(dev, PCI_SUBSYSTEM_VENDOR_ID, &vendor);
68
69 #ifdef DEBUG
70 printk("devfn %x, slot %d devid %x\n",
71 dev->devfn, slot, gt_devid);
72 #endif
73
74 /* fixup irq line based on slot # */
75 if (slot == 8) {
76 dev->irq = 5;
77 pci_write_config_byte(dev, PCI_INTERRUPT_LINE,
78 dev->irq);
79 }
80 else if (slot == 9) {
81 dev->irq = 2;
82 pci_write_config_byte(dev, PCI_INTERRUPT_LINE,
83 dev->irq);
84 }
85 }
86 }
pcibios_assign_all_busses(void)87 unsigned int pcibios_assign_all_busses(void)
88 {
89 return 0;
90 }
91