1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/*
|
|
* 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);
|
|
}
|
|
}
|