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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * arch/sh/drivers/pci/ops-snapgear.c
3 *
4 * Author: David McCullough <davidm@snapgear.com>
Paul Mundt959f85f2006-09-27 16:43:28 +09005 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 * 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 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070015#include <linux/kernel.h>
16#include <linux/types.h>
17#include <linux/init.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include <linux/pci.h>
Paul Mundt959f85f2006-09-27 16:43:28 +090019#include "pci-sh4.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070020
Paul Mundt959f85f2006-09-27 16:43:28 +090021int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
Linus Torvalds1da177e2005-04-16 15:20:36 -070022{
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}