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/*
* Copyright 2001 MontaVista Software Inc.
* Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
*
* arch/mips/gt64120/momenco_ocelot/pci.c
* Board-specific PCI routines for gt64120 controller.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/pci.h>
void __devinit pcibios_fixup_bus(struct pci_bus *bus)
{
struct pci_bus *current_bus = bus;
struct pci_dev *devices;
struct list_head *devices_link;
u16 cmd;
list_for_each(devices_link, &(current_bus->devices)) {
devices = pci_dev_b(devices_link);
if (devices == NULL)
continue;
if (PCI_SLOT(devices->devfn) == 1) {
/*
* Slot 1 is primary ether port, i82559
* we double-check against that assumption
*/
if ((devices->vendor != 0x8086) ||
(devices->device != 0x1209)) {
panic("pcibios_fixup_bus: found "
"unexpected PCI device in slot 1.");
}
devices->irq = 2; /* irq_nr is 2 for INT0 */
} else if (PCI_SLOT(devices->devfn) == 2) {
/*
* Slot 2 is secondary ether port, i21143
* we double-check against that assumption
*/
if ((devices->vendor != 0x1011) ||
(devices->device != 0x19)) {
panic("galileo_pcibios_fixup_bus: "
"found unexpected PCI device in slot 2.");
}
devices->irq = 3; /* irq_nr is 3 for INT1 */
} else if (PCI_SLOT(devices->devfn) == 4) {
/* PMC Slot 1 */
devices->irq = 8; /* irq_nr is 8 for INT6 */
} else if (PCI_SLOT(devices->devfn) == 5) {
/* PMC Slot 1 */
devices->irq = 9; /* irq_nr is 9 for INT7 */
} else {
/* We don't have assign interrupts for other devices. */
devices->irq = 0xff;
}
/* Assign an interrupt number for the device */
bus->ops->write_byte(devices, PCI_INTERRUPT_LINE,
devices->irq);
/* enable master */
bus->ops->read_word(devices, PCI_COMMAND, &cmd);
cmd |= PCI_COMMAND_MASTER;
bus->ops->write_word(devices, PCI_COMMAND, cmd);
}
}
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