arch/sh/drivers/pci/fixups-snapgear.c

   1 /*
   2  * arch/sh/drivers/pci/ops-snapgear.c
   3  *
   4  * Author:  David McCullough <davidm@snapgear.com>
   5  *
   6  * Ported to new API by Paul Mundt <lethal@linux-sh.org>
   7  *
   8  * Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
   9  *
  10  * May be copied or modified under the terms of the GNU General Public
  11  * License.  See linux/COPYING for more information.
  12  *
  13  * PCI initialization for the SnapGear boards
  14  */
  15 #include <linux/kernel.h>
  16 #include <linux/types.h>
  17 #include <linux/init.h>
  18 #include <linux/pci.h>
  19 #include "pci-sh4.h"
  20
  21 int __init pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
  22 {
  23         int irq = -1;
  24
  25         switch (slot) {
  26         case 8:  /* the PCI bridge */ break;
  27         case 11: irq = 8;  break; /* USB    */
  28         case 12: irq = 11; break; /* PCMCIA */
  29         case 13: irq = 5;  break; /* eth0   */
  30         case 14: irq = 8;  break; /* eth1   */
  31         case 15: irq = 11; break; /* safenet (unused) */
  32         }
  33
  34         printk("PCI: Mapping SnapGear IRQ for slot %d, pin %c to irq %d\n",
  35                slot, pin - 1 + 'A', irq);
  36
  37         return irq;
  38 }