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

   1/*
   2 * arch/arch/mach-ixp4xx/wg302v2-pci.c
   3 *
   4 * PCI setup routines for the Netgear WG302 v2 and WAG302 v2
   5 *
   6 * Copyright (C) 2007 Imre Kaloz <kaloz@openwrt.org>
   7 *
   8 * based on coyote-pci.c:
   9 *      Copyright (C) 2002 Jungo Software Technologies.
  10 *      Copyright (C) 2003 MontaVista Software, Inc.
  11 *
  12 * Maintainer: Imre Kaloz <kaloz@openwrt.org>
  13 *
  14 * This program is free software; you can redistribute it and/or modify
  15 * it under the terms of the GNU General Public License version 2 as
  16 * published by the Free Software Foundation.
  17 *
  18 */
  19
  20#include <linux/kernel.h>
  21#include <linux/pci.h>
  22#include <linux/init.h>
  23#include <linux/irq.h>
  24
  25#include <asm/mach-types.h>
  26#include <mach/hardware.h>
  27
  28#include <asm/mach/pci.h>
  29
  30void __init wg302v2_pci_preinit(void)
  31{
  32        irq_set_irq_type(IRQ_IXP4XX_GPIO8, IRQ_TYPE_LEVEL_LOW);
  33        irq_set_irq_type(IRQ_IXP4XX_GPIO9, IRQ_TYPE_LEVEL_LOW);
  34
  35        ixp4xx_pci_preinit();
  36}
  37
  38static int __init wg302v2_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  39{
  40        if (slot == 1)
  41                return IRQ_IXP4XX_GPIO8;
  42        else if (slot == 2)
  43                return IRQ_IXP4XX_GPIO9;
  44        else return -1;
  45}
  46
  47struct hw_pci wg302v2_pci __initdata = {
  48        .nr_controllers = 1,
  49        .ops = &ixp4xx_ops,
  50        .preinit =        wg302v2_pci_preinit,
  51        .setup =          ixp4xx_setup,
  52        .map_irq =        wg302v2_map_irq,
  53};
  54
  55int __init wg302v2_pci_init(void)
  56{
  57        if (machine_is_wg302v2())
  58                pci_common_init(&wg302v2_pci);
  59        return 0;
  60}
  61
  62subsys_initcall(wg302v2_pci_init);
  63