target/linux/aruba-2.6/files/arch/mips/pci/fixup-aruba.c

   1 /**************************************************************************
   2  *
   3  *  BRIEF MODULE DESCRIPTION
   4  *     PCI fixups for IDT EB434 board
   5  *
   6  *  Copyright 2004 IDT Inc. (rischelp@idt.com)
   7  *
   8  *  This program is free software; you can redistribute  it and/or modify it
   9  *  under  the terms of  the GNU General  Public License as published by the
  10  *  Free Software Foundation;  either version 2 of the  License, or (at your
  11  *  option) any later version.
  12  *
  13  *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
  14  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
  15  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  16  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
  17  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  18  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
  19  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  20  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
  21  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  22  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  23  *
  24  *  You should have received a copy of the  GNU General Public License along
  25  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  26  *  675 Mass Ave, Cambridge, MA 02139, USA.
  27  *
  28  *
  29  **************************************************************************
  30  * May 2004 rkt, neb
  31  *
  32  * Initial Release
  33  *
  34  *
  35  *
  36  **************************************************************************
  37  */
  38
  39 #include <linux/autoconf.h>
  40 #include <linux/types.h>
  41 #include <linux/pci.h>
  42 #include <linux/kernel.h>
  43 #include <linux/init.h>
  44 #include <asm/idt-boards/rc32434/rc32434.h>
  45 #include <asm/idt-boards/rc32434/rc32434_pci.h>
  46
  47 int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  48 {
  49
  50         if (dev->bus->number != 0) {
  51                 return 0;
  52         }
  53
  54         slot = PCI_SLOT(dev->devfn);
  55         dev->irq = 0;
  56
  57         if (slot > 0 && slot <= 15) {
  58 #if 1
  59                 if(slot == 10) {
  60                         if(pin == 1) dev->irq = GROUP4_IRQ_BASE + 9; // intA
  61                 } else if(slot == 11) {
  62                         if(pin == 1) dev->irq = GROUP4_IRQ_BASE + 10; // intA
  63                         if(pin == 2) dev->irq = GROUP4_IRQ_BASE + 10; // intA
  64                         if(pin == 3) dev->irq = GROUP4_IRQ_BASE + 10; // intA
  65                 } else if(slot == 12) {
  66                         if(pin == 1) dev->irq = GROUP4_IRQ_BASE + 11; // intA
  67                         if(pin == 2) dev->irq = GROUP4_IRQ_BASE + 12; // intB
  68                 } else if (slot == 13) {
  69                         if(pin == 1) dev->irq = GROUP4_IRQ_BASE + 12; // intA
  70                         if(pin == 2) dev->irq = GROUP4_IRQ_BASE + 11; // intB
  71                 } else {
  72                         dev->irq = GROUP4_IRQ_BASE + 11;
  73                 }
  74 #else
  75                                 switch (pin) {
  76                                 case 1: /* INTA*/
  77                                         dev->irq = GROUP4_IRQ_BASE + 11;
  78                                         break;
  79                                 case 2: /* INTB */
  80                                         dev->irq = GROUP4_IRQ_BASE + 11;
  81                                         break;
  82                                 case 3: /* INTC */
  83                                         dev->irq = GROUP4_IRQ_BASE + 11;
  84                                         break;
  85                                 case 4: /* INTD */
  86                                         dev->irq = GROUP4_IRQ_BASE + 11;
  87                                         break;
  88                                 default:
  89                                         dev->irq = 0xff;
  90                                         break;
  91                                 }
  92 #endif
  93 #ifdef DEBUG
  94                 printk("irq fixup: slot %d, pin %d, irq %d\n",
  95                        slot, pin, dev->irq);
  96 #endif
  97                 pci_write_config_byte(dev, PCI_INTERRUPT_LINE,dev->irq);
  98         }
  99         return (dev->irq);
 100 }
 101
 102 struct pci_fixup pcibios_fixups[] = {
 103         {0}
 104 };
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