2 * Copyright 2002 Momentum Computer Inc.
3 * Author: Matthew Dharm <mdharm@momenco.com>
5 * Based on work for the Linux port to the Ocelot board, which is
6 * Copyright 2001 MontaVista Software Inc.
7 * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
9 * arch/mips/momentum/ocelot_g/pci.c
10 * Board-specific PCI routines for mv64340 controller.
12 * This program is free software; you can redistribute it and/or modify it
13 * under the terms of the GNU General Public License as published by the
14 * Free Software Foundation; either version 2 of the License, or (at your
15 * option) any later version.
17 #include <linux/types.h>
18 #include <linux/pci.h>
19 #include <linux/kernel.h>
20 #include <linux/init.h>
24 void __init mv64340_board_pcibios_fixup_bus(struct pci_bus *bus)
26 struct pci_bus *current_bus = bus;
27 struct pci_dev *devices;
28 struct list_head *devices_link;
31 /* loop over all known devices on this bus */
32 list_for_each(devices_link, &(current_bus->devices)) {
34 devices = pci_dev_b(devices_link);
38 if ((current_bus->number == 0) &&
39 (PCI_SLOT(devices->devfn) == 1) &&
40 (PCI_FUNC(devices->devfn) == 0)) {
41 /* LSI 53C10101R SCSI (A) */
43 } else if ((current_bus->number == 0) &&
44 (PCI_SLOT(devices->devfn) == 1) &&
45 (PCI_FUNC(devices->devfn) == 1)) {
46 /* LSI 53C10101R SCSI (B) */
48 } else if ((current_bus->number == 1) &&
49 (PCI_SLOT(devices->devfn) == 1)) {
50 /* Intel 21555 bridge */
52 } else if ((current_bus->number == 1) &&
53 (PCI_SLOT(devices->devfn) == 2)) {
57 /* We don't have assign interrupts for other devices. */
61 /* Assign an interrupt number for the device */
62 bus->ops->write_byte(devices, PCI_INTERRUPT_LINE, devices->irq);
64 /* enable master for everything but the MV-64340 */
65 if (((current_bus->number != 0) && (current_bus->number != 1))
66 || (PCI_SLOT(devices->devfn) != 0)) {
67 bus->ops->read_word(devices, PCI_COMMAND, &cmd);
68 cmd |= PCI_COMMAND_MASTER;
69 bus->ops->write_word(devices, PCI_COMMAND, cmd);