target/linux/lantiq/files-3.3/arch/mips/pci/fixup-lantiq.c

   1 /*
   2  *  This program is free software; you can redistribute it and/or modify it
   3  *  under the terms of the GNU General Public License version 2 as published
   4  *  by the Free Software Foundation.
   5  *
   6  *  Copyright (C) 2012 John Crispin <blogic@openwrt.org>
   7  */
   8
   9 #include <linux/of_irq.h>
  10 #include <linux/of_pci.h>
  11
  12 int (*ltqpci_map_irq)(const struct pci_dev *dev, u8 slot, u8 pin) = NULL;
  13 int (*ltqpci_plat_arch_init)(struct pci_dev *dev) = NULL;
  14 int (*ltqpci_plat_dev_init)(struct pci_dev *dev) = NULL;
  15 int *ltq_pci_irq_map;
  16
  17 int pcibios_plat_dev_init(struct pci_dev *dev)
  18 {
  19         if (ltqpci_plat_arch_init)
  20                 return ltqpci_plat_arch_init(dev);
  21
  22         if (ltqpci_plat_dev_init)
  23                 return ltqpci_plat_dev_init(dev);
  24
  25         return 0;
  26 }
  27
  28 int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  29 {
  30         if (ltqpci_map_irq)
  31                 return ltqpci_map_irq(dev, slot, pin);
  32         if (ltq_pci_irq_map[slot]) {
  33                 dev_info(&dev->dev, "SLOT:%d PIN:%d IRQ:%d\n", slot, pin, ltq_pci_irq_map[slot]);
  34                 return ltq_pci_irq_map[slot];
  35         }
  36         printk(KERN_ERR "lq_pci: trying to map irq for unknown slot %d\n",
  37                 slot);
  38
  39         return 0;
  40 }
  41
  42