blob: fe5e7660de1d5e855594b45a6fdaf7cd4c152655 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * arch/arch/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
20#include <asm/mach-types.h>
21#include <asm/hardware.h>
22#include <asm/irq.h>
23
24#include <asm/mach/pci.h>
25
26extern void ixp4xx_pci_preinit(void);
27extern int ixp4xx_setup(int nr, struct pci_sys_data *sys);
28extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys);
29
30void __init ixdpg425_pci_preinit(void)
31{
Deepak Saxenabdf82b52005-08-29 22:46:30 +010032 set_irq_type(IRQ_IXP4XX_GPIO6, IRQT_LOW);
33 set_irq_type(IRQ_IXP4XX_GPIO7, IRQT_LOW);
Linus Torvalds1da177e2005-04-16 15:20:36 -070034
35 gpio_line_isr_clear(6);
36 gpio_line_isr_clear(7);
37
38 ixp4xx_pci_preinit();
39}
40
41static int __init ixdpg425_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
42{
43 if (slot == 12 || slot == 13)
44 return IRQ_IXP4XX_GPIO7;
45 else if (slot == 14)
46 return IRQ_IXP4XX_GPIO6;
47 else return -1;
48}
49
50struct hw_pci ixdpg425_pci __initdata = {
51 .nr_controllers = 1,
52 .preinit = ixdpg425_pci_preinit,
53 .swizzle = pci_std_swizzle,
54 .setup = ixp4xx_setup,
55 .scan = ixp4xx_scan_bus,
56 .map_irq = ixdpg425_map_irq,
57};
58
59int __init ixdpg425_pci_init(void)
60{
61 if (machine_is_ixdpg425())
62 pci_common_init(&ixdpg425_pci);
63 return 0;
64}
65
66subsys_initcall(ixdpg425_pci_init);