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

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * arch/arm/mach-ixp4xx/ixdpg425-pci.c
   4 *
   5 * PCI setup routines for Intel IXDPG425 Platform
   6 *
   7 * Copyright (C) 2004 MontaVista Softwrae, Inc.
   8 *
   9 * Maintainer: Deepak Saxena <dsaxena@plexity.net>
  10 */
  11
  12#include <linux/kernel.h>
  13#include <linux/pci.h>
  14#include <linux/init.h>
  15#include <linux/irq.h>
  16
  17#include <asm/mach-types.h>
  18#include <mach/hardware.h>
  19
  20#include <asm/mach/pci.h>
  21
  22#include "irqs.h"
  23
  24void __init ixdpg425_pci_preinit(void)
  25{
  26        irq_set_irq_type(IRQ_IXP4XX_GPIO6, IRQ_TYPE_LEVEL_LOW);
  27        irq_set_irq_type(IRQ_IXP4XX_GPIO7, IRQ_TYPE_LEVEL_LOW);
  28
  29        ixp4xx_pci_preinit();
  30}
  31
  32static int __init ixdpg425_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  33{
  34        if (slot == 12 || slot == 13)
  35                return IRQ_IXP4XX_GPIO7;
  36        else if (slot == 14)
  37                return IRQ_IXP4XX_GPIO6;
  38        else return -1;
  39}
  40
  41struct hw_pci ixdpg425_pci __initdata = {
  42        .nr_controllers = 1,
  43        .ops            = &ixp4xx_ops,
  44        .preinit =        ixdpg425_pci_preinit,
  45        .setup =          ixp4xx_setup,
  46        .map_irq =        ixdpg425_map_irq,
  47};
  48
  49int __init ixdpg425_pci_init(void)
  50{
  51        if (machine_is_ixdpg425())
  52                pci_common_init(&ixdpg425_pci);
  53        return 0;
  54}
  55
  56subsys_initcall(ixdpg425_pci_init);
  57