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/arch/arm/mach-ixp4xx/ixdpg425-pci.c

https://github.com/AICP/kernel_google_msm
C | 59 lines | 36 code | 9 blank | 14 comment | 9 complexity | 048f7071a670fdf8228dbee0c786e167 MD5 | raw file
 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
26void __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
34static int __init ixdpg425_map_irq(const 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
43struct 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
52int __init ixdpg425_pci_init(void)
53{
54	if (machine_is_ixdpg425())
55		pci_common_init(&ixdpg425_pci);
56	return 0;
57}
58
59subsys_initcall(ixdpg425_pci_init);