LXR linux/arch/arm/mach-ixp4xx/wg302v2-pci.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * arch/arch/mach-ixp4xx/wg302v2-pci.c
   4 *
   5 * PCI setup routines for the Netgear WG302 v2 and WAG302 v2
   6 *
   7 * Copyright (C) 2007 Imre Kaloz <kaloz@openwrt.org>
   8 *
   9 * based on coyote-pci.c:
  10 *      Copyright (C) 2002 Jungo Software Technologies.
  11 *      Copyright (C) 2003 MontaVista Software, Inc.
  12 *
  13 * Maintainer: Imre Kaloz <kaloz@openwrt.org>
  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
  28void __init wg302v2_pci_preinit(void)
  29{
  30        irq_set_irq_type(IRQ_IXP4XX_GPIO8, IRQ_TYPE_LEVEL_LOW);
  31        irq_set_irq_type(IRQ_IXP4XX_GPIO9, IRQ_TYPE_LEVEL_LOW);
  32
  33        ixp4xx_pci_preinit();
  34}
  35
  36static int __init wg302v2_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  37{
  38        if (slot == 1)
  39                return IRQ_IXP4XX_GPIO8;
  40        else if (slot == 2)
  41                return IRQ_IXP4XX_GPIO9;
  42        else return -1;
  43}
  44
  45struct hw_pci wg302v2_pci __initdata = {
  46        .nr_controllers = 1,
  47        .ops = &ixp4xx_ops,
  48        .preinit =        wg302v2_pci_preinit,
  49        .setup =          ixp4xx_setup,
  50        .map_irq =        wg302v2_map_irq,
  51};
  52
  53int __init wg302v2_pci_init(void)
  54{
  55        if (machine_is_wg302v2())
  56                pci_common_init(&wg302v2_pci);
  57        return 0;
  58}
  59
  60subsys_initcall(wg302v2_pci_init);
  61