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kernel/linux-imx6_3.14.28/arch/arm/mach-ixp4xx/wg302v2-pci.c 1.4 KB
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  /*
   * arch/arch/mach-ixp4xx/wg302v2-pci.c
   *
   * PCI setup routines for the Netgear WG302 v2 and WAG302 v2
   *
   * Copyright (C) 2007 Imre Kaloz <kaloz@openwrt.org>
   *
   * based on coyote-pci.c:
   *	Copyright (C) 2002 Jungo Software Technologies.
   *	Copyright (C) 2003 MontaVista Software, Inc.
   *
   * Maintainer: Imre Kaloz <kaloz@openwrt.org>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   *
   */
  
  #include <linux/kernel.h>
  #include <linux/pci.h>
  #include <linux/init.h>
  #include <linux/irq.h>
  
  #include <asm/mach-types.h>
  #include <mach/hardware.h>
  
  #include <asm/mach/pci.h>
  
  void __init wg302v2_pci_preinit(void)
  {
  	irq_set_irq_type(IRQ_IXP4XX_GPIO8, IRQ_TYPE_LEVEL_LOW);
  	irq_set_irq_type(IRQ_IXP4XX_GPIO9, IRQ_TYPE_LEVEL_LOW);
  
  	ixp4xx_pci_preinit();
  }
  
  static int __init wg302v2_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  {
  	if (slot == 1)
  		return IRQ_IXP4XX_GPIO8;
  	else if (slot == 2)
  		return IRQ_IXP4XX_GPIO9;
  	else return -1;
  }
  
  struct hw_pci wg302v2_pci __initdata = {
  	.nr_controllers = 1,
  	.ops = &ixp4xx_ops,
  	.preinit =        wg302v2_pci_preinit,
  	.setup =          ixp4xx_setup,
  	.map_irq =        wg302v2_map_irq,
  };
  
  int __init wg302v2_pci_init(void)
  {
  	if (machine_is_wg302v2())
  		pci_common_init(&wg302v2_pci);
  	return 0;
  }
  
  subsys_initcall(wg302v2_pci_init);