target/linux/ar71xx/files/arch/mips/ar71xx/pci.c

   1 /*
   2  *  Atheros AR71xx PCI setup code
   3  *
   4  *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
   5  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
   6  *
   7  *  Parts of this file are based on Atheros' 2.6.15 BSP
   8  *
   9  *  This program is free software; you can redistribute it and/or modify it
  10  *  under the terms of the GNU General Public License version 2 as published
  11  *  by the Free Software Foundation.
  12  */
  13
  14 #include <asm/mach-ar71xx/ar71xx.h>
  15 #include <asm/mach-ar71xx/pci.h>
  16
  17 unsigned ar71xx_pci_nr_irqs __initdata;
  18 struct ar71xx_pci_irq *ar71xx_pci_irq_map __initdata;
  19
  20 int (*ar71xx_pci_plat_dev_init)(struct pci_dev *dev);
  21
  22 static int ar71xx_be_handler(struct pt_regs *regs, int is_fixup)
  23 {
  24         int err = 0;
  25
  26         err = ar71xx_pci_be_handler(is_fixup);
  27
  28         return (is_fixup && !err) ? MIPS_BE_FIXUP : MIPS_BE_FATAL;
  29 }
  30
  31 int pcibios_plat_dev_init(struct pci_dev *dev)
  32 {
  33         if (ar71xx_pci_plat_dev_init)
  34                 return ar71xx_pci_plat_dev_init(dev);
  35
  36         return 0;
  37 }
  38
  39 int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
  40 {
  41         return ar71xx_pcibios_map_irq(dev, slot, pin);
  42 }
  43
  44 int __init ar71xx_pci_init(unsigned nr_irqs, struct ar71xx_pci_irq *map)
  45 {
  46         ar71xx_pci_nr_irqs = nr_irqs;
  47         ar71xx_pci_irq_map = map;
  48
  49         board_be_handler = ar71xx_be_handler;
  50
  51         return ar71xx_pcibios_init();
  52 }