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

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * arch/sh/drivers/pci/ops-titan.c
   4  *
   5  * Ported to new API by Paul Mundt <lethal@linux-sh.org>
   6  *
   7  * Modified from ops-snapgear.c written by  David McCullough
   8  * Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
   9  *
  10  * PCI initialization for the Titan boards
  11  */
  12 #include <linux/kernel.h>
  13 #include <linux/types.h>
  14 #include <linux/init.h>
  15 #include <linux/pci.h>
  16 #include <linux/io.h>
  17 #include <mach/titan.h>
  18 #include "pci-sh4.h"
  19
  20 static char titan_irq_tab[] = {
  21         TITAN_IRQ_WAN,
  22         TITAN_IRQ_LAN,
  23         TITAN_IRQ_MPCIA,
  24         TITAN_IRQ_MPCIB,
  25         TITAN_IRQ_USB,
  26 };
  27
  28 int pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
  29 {
  30         int irq = titan_irq_tab[slot];
  31
  32         printk("PCI: Mapping TITAN IRQ for slot %d, pin %c to irq %d\n",
  33                 slot, pin - 1 + 'A', irq);
  34
  35         return irq;
  36 }