1 /*
2 * arch/arm/mach-ixp4xx/ixdpg425-pci.c
3 *
4 * PCI setup routines for Intel IXDPG425 Platform
5 *
6 * Copyright (C) 2004 MontaVista Softwrae, Inc.
7 *
8 * Maintainer: Deepak Saxena <dsaxena@plexity.net>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 *
14 */
15
16 #include <linux/kernel.h>
17 #include <linux/pci.h>
18 #include <linux/init.h>
19 #include <linux/irq.h>
20
21 #include <asm/mach-types.h>
22 #include <mach/hardware.h>
23
24 #include <asm/mach/pci.h>
25
ixdpg425_pci_preinit(void)26 void __init ixdpg425_pci_preinit(void)
27 {
28 irq_set_irq_type(IRQ_IXP4XX_GPIO6, IRQ_TYPE_LEVEL_LOW);
29 irq_set_irq_type(IRQ_IXP4XX_GPIO7, IRQ_TYPE_LEVEL_LOW);
30
31 ixp4xx_pci_preinit();
32 }
33
ixdpg425_map_irq(struct pci_dev * dev,u8 slot,u8 pin)34 static int __init ixdpg425_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
35 {
36 if (slot == 12 || slot == 13)
37 return IRQ_IXP4XX_GPIO7;
38 else if (slot == 14)
39 return IRQ_IXP4XX_GPIO6;
40 else return -1;
41 }
42
43 struct hw_pci ixdpg425_pci __initdata = {
44 .nr_controllers = 1,
45 .preinit = ixdpg425_pci_preinit,
46 .swizzle = pci_std_swizzle,
47 .setup = ixp4xx_setup,
48 .scan = ixp4xx_scan_bus,
49 .map_irq = ixdpg425_map_irq,
50 };
51
ixdpg425_pci_init(void)52 int __init ixdpg425_pci_init(void)
53 {
54 if (machine_is_ixdpg425())
55 pci_common_init(&ixdpg425_pci);
56 return 0;
57 }
58
59 subsys_initcall(ixdpg425_pci_init);
60