text: /*
   * Copyright 2002 Momentum Computer Inc.
   * Author: Matthew Dharm <mdharm@momenco.com>
   *
   * Based on work for the Linux port to the Ocelot board, which is
   * Copyright 2001 MontaVista Software Inc.
   * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
   *
   * arch/mips/momentum/ocelot_g/pci.c
   *     Board-specific PCI routines for gt64240 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/version.h>
  #include <linux/init.h>
  #include <asm/pci.h>
  
  
  void __init gt64240_board_pcibios_fixup_bus(struct pci_bus *bus)
  {
  	struct pci_bus *current_bus = bus;
  	struct pci_dev *devices;
  	struct list_head *devices_link;
  	u16 cmd;
  
  	/* loop over all known devices on this bus */
  	list_for_each(devices_link, &(current_bus->devices)) {
  
  		devices = pci_dev_b(devices_link);
  		if (devices == NULL)
  			continue;
  
  		if ((current_bus->number == 0) &&
  				PCI_SLOT(devices->devfn) == 1) {
  			/* Intel 82543 Gigabit MAC */
  			devices->irq = 2;       /* irq_nr is 2 for INT0 */
  		} else if ((current_bus->number == 0) &&
  				PCI_SLOT(devices->devfn) == 2) {
  			/* Intel 82543 Gigabit MAC */
  			devices->irq = 3;       /* irq_nr is 3 for INT1 */
  		} else if ((current_bus->number == 1) &&
  				PCI_SLOT(devices->devfn) == 3) {
  			/* Intel 21555 bridge */
  			devices->irq = 5;       /* irq_nr is 8 for INT6 */
  		} else if ((current_bus->number == 1) &&
  				PCI_SLOT(devices->devfn) == 4) {
  			/* PMC Slot */
  			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 for everything but the GT-64240 */
  		if (((current_bus->number != 0) && (current_bus->number != 1))
  				|| (PCI_SLOT(devices->devfn) != 0)) {
  			bus->ops->read_word(devices, PCI_COMMAND, &cmd);
  			cmd |= PCI_COMMAND_MASTER;
  			bus->ops->write_word(devices, PCI_COMMAND, cmd);
  		}
  	}
  }
  