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
pcibios_map_platform_irq(const struct pci_dev * pdev,u8 slot,u8 pin)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 }
37