2 * arch/arch/mach-ixp4xx/ixdpg425-pci.c
4 * PCI setup routines for Intel IXDPG425 Platform
6 * Copyright (C) 2004 MontaVista Softwrae, Inc.
8 * Maintainer: Deepak Saxena <dsaxena@plexity.net>
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.
16 #include <linux/pci.h>
17 #include <linux/init.h>
19 #include <asm/mach-types.h>
20 #include <asm/hardware.h>
23 #include <asm/mach/pci.h>
25 extern void ixp4xx_pci_preinit(void);
26 extern int ixp4xx_setup(int nr, struct pci_sys_data *sys);
27 extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys);
29 void __init ixdpg425_pci_preinit(void)
31 gpio_line_config(6, IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
32 gpio_line_config(7, IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
34 gpio_line_isr_clear(6);
35 gpio_line_isr_clear(7);
40 static int __init ixdpg425_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
42 if (slot == 12 || slot == 13)
43 return IRQ_IXP4XX_GPIO7;
45 return IRQ_IXP4XX_GPIO6;
49 struct hw_pci ixdpg425_pci __initdata = {
51 .preinit = ixdpg425_pci_preinit,
52 .swizzle = pci_std_swizzle,
53 .setup = ixp4xx_setup,
54 .scan = ixp4xx_scan_bus,
55 .map_irq = ixdpg425_map_irq,
58 int __init ixdpg425_pci_init(void)
60 if (machine_is_ixdpg425())
61 pci_common_init(&ixdpg425_pci);
65 subsys_initcall(ixdpg425_pci_init);