1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * arch/arm/mach-ixp4xx/ixdpg425-pci.c
4 *
5 * PCI setup routines for Intel IXDPG425 Platform
6 *
7 * Copyright (C) 2004 MontaVista Softwrae, Inc.
8 *
9 * Maintainer: Deepak Saxena <dsaxena@plexity.net>
10 */
11
12 #include <linux/kernel.h>
13 #include <linux/pci.h>
14 #include <linux/init.h>
15 #include <linux/irq.h>
16
17 #include <asm/mach-types.h>
18 #include <mach/hardware.h>
19
20 #include <asm/mach/pci.h>
21
22 #include "irqs.h"
23
ixdpg425_pci_preinit(void)24 void __init ixdpg425_pci_preinit(void)
25 {
26 irq_set_irq_type(IRQ_IXP4XX_GPIO6, IRQ_TYPE_LEVEL_LOW);
27 irq_set_irq_type(IRQ_IXP4XX_GPIO7, IRQ_TYPE_LEVEL_LOW);
28
29 ixp4xx_pci_preinit();
30 }
31
ixdpg425_map_irq(const struct pci_dev * dev,u8 slot,u8 pin)32 static int __init ixdpg425_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
33 {
34 if (slot == 12 || slot == 13)
35 return IRQ_IXP4XX_GPIO7;
36 else if (slot == 14)
37 return IRQ_IXP4XX_GPIO6;
38 else return -1;
39 }
40
41 struct hw_pci ixdpg425_pci __initdata = {
42 .nr_controllers = 1,
43 .ops = &ixp4xx_ops,
44 .preinit = ixdpg425_pci_preinit,
45 .setup = ixp4xx_setup,
46 .map_irq = ixdpg425_map_irq,
47 };
48
ixdpg425_pci_init(void)49 int __init ixdpg425_pci_init(void)
50 {
51 if (machine_is_ixdpg425())
52 pci_common_init(&ixdpg425_pci);
53 return 0;
54 }
55
56 subsys_initcall(ixdpg425_pci_init);
57