arch/arm/mach-ixp4xx/ixdpg425-pci.c

   1 /*
   2  * arch/arm/mach-ixp4xx/ixdpg425-pci.c
   3  *
   4  * PCI setup routines for Intel IXDPG425 Platform
   5  *
   6  * Copyright (C) 2004 MontaVista Softwrae, Inc.
   7  *
   8  * Maintainer: Deepak Saxena <dsaxena@plexity.net>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  *
  14  */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/pci.h>
  18 #include <linux/init.h>
  19 #include <linux/irq.h>
  20
  21 #include <asm/mach-types.h>
  22 #include <mach/hardware.h>
  23
  24 #include <asm/mach/pci.h>
  25
  26 #include "irqs.h"
  27
  28 void __init ixdpg425_pci_preinit(void)
  29 {
  30         irq_set_irq_type(IRQ_IXP4XX_GPIO6, IRQ_TYPE_LEVEL_LOW);
  31         irq_set_irq_type(IRQ_IXP4XX_GPIO7, IRQ_TYPE_LEVEL_LOW);
  32
  33         ixp4xx_pci_preinit();
  34 }
  35
  36 static int __init ixdpg425_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  37 {
  38         if (slot == 12 || slot == 13)
  39                 return IRQ_IXP4XX_GPIO7;
  40         else if (slot == 14)
  41                 return IRQ_IXP4XX_GPIO6;
  42         else return -1;
  43 }
  44
  45 struct hw_pci ixdpg425_pci __initdata = {
  46         .nr_controllers = 1,
  47         .ops            = &ixp4xx_ops,
  48         .preinit =        ixdpg425_pci_preinit,
  49         .setup =          ixp4xx_setup,
  50         .map_irq =        ixdpg425_map_irq,
  51 };
  52
  53 int __init ixdpg425_pci_init(void)
  54 {
  55         if (machine_is_ixdpg425())
  56                 pci_common_init(&ixdpg425_pci);
  57         return 0;
  58 }
  59
  60 subsys_initcall(ixdpg425_pci_init);