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

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * arch/sh/drivers/pci/ops-snapgear.c
   4 *
   5 * Author:  David McCullough <davidm@snapgear.com>
   6 *
   7 * Ported to new API by Paul Mundt <lethal@linux-sh.org>
   8 *
   9 * Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
  10 *
  11 * PCI initialization for the SnapGear boards
  12 */
  13#include <linux/kernel.h>
  14#include <linux/types.h>
  15#include <linux/init.h>
  16#include <linux/pci.h>
  17#include <linux/sh_intc.h>
  18#include "pci-sh4.h"
  19
  20int pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
  21{
  22        int irq = -1;
  23
  24        switch (slot) {
  25        case 8:  /* the PCI bridge */ break;
  26        case 11: irq = evt2irq(0x300); break; /* USB    */
  27        case 12: irq = evt2irq(0x360); break; /* PCMCIA */
  28        case 13: irq = evt2irq(0x2a0); break; /* eth0   */
  29        case 14: irq = evt2irq(0x300); break; /* eth1   */
  30        case 15: irq = evt2irq(0x360); break; /* safenet (unused) */
  31        }
  32
  33        printk("PCI: Mapping SnapGear IRQ for slot %d, pin %c to irq %d\n",
  34               slot, pin - 1 + 'A', irq);
  35
  36        return irq;
  37}
  38