arch/mips/pci/fixup-tb0229.c

   1 /*
   2  * FILE NAME
   3  *      arch/mips/vr41xx/tanbac-tb0229/pci_fixup.c
   4  *
   5  * BRIEF MODULE DESCRIPTION
   6  *      The TANBAC TB0229(VR4131DIMM) specific PCI fixups.
   7  *
   8  * Copyright 2003 Megasolution Inc.
   9  *                matsu@megasolution.jp
  10  *
  11  *  This program is free software; you can redistribute it and/or modify it
  12  *  under the terms of the GNU General Public License as published by the
  13  *  Free Software Foundation; either version 2 of the License, or (at your
  14  *  option) any later version.
  15  */
  16 #include <linux/config.h>
  17 #include <linux/init.h>
  18 #include <linux/pci.h>
  19
  20 #include <asm/vr41xx/tb0229.h>
  21
  22 void __init pcibios_fixup_irqs(void)
  23 {
  24 #ifdef CONFIG_TANBAC_TB0219
  25         struct pci_dev *dev = NULL;
  26         u8 slot;
  27
  28         while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
  29                 slot = PCI_SLOT(dev->devfn);
  30                 dev->irq = 0;
  31
  32                 switch (slot) {
  33                 case 12:
  34                         vr41xx_set_irq_trigger(TB0219_PCI_SLOT1_PIN,
  35                                                TRIGGER_LEVEL,
  36                                                SIGNAL_THROUGH);
  37                         vr41xx_set_irq_level(TB0219_PCI_SLOT1_PIN,
  38                                              LEVEL_LOW);
  39                         dev->irq = TB0219_PCI_SLOT1_IRQ;
  40                         break;
  41                 case 13:
  42                         vr41xx_set_irq_trigger(TB0219_PCI_SLOT2_PIN,
  43                                                TRIGGER_LEVEL,
  44                                                SIGNAL_THROUGH);
  45                         vr41xx_set_irq_level(TB0219_PCI_SLOT2_PIN,
  46                                              LEVEL_LOW);
  47                         dev->irq = TB0219_PCI_SLOT2_IRQ;
  48                         break;
  49                 case 14:
  50                         vr41xx_set_irq_trigger(TB0219_PCI_SLOT3_PIN,
  51                                                TRIGGER_LEVEL,
  52                                                SIGNAL_THROUGH);
  53                         vr41xx_set_irq_level(TB0219_PCI_SLOT3_PIN,
  54                                              LEVEL_LOW);
  55                         dev->irq = TB0219_PCI_SLOT3_IRQ;
  56                         break;
  57                 default:
  58                         break;
  59                 }
  60
  61                 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
  62         }
  63 #endif
  64 }