2 * arch/arm/mach-ixp4xx/avila-pci.c
4 * Gateworks Avila board-level PCI initialization
6 * Author: Michael-Luke Jones <mlj28@cam.ac.uk>
9 * Copyright (C) 2002 Intel Corporation.
10 * Copyright (C) 2003-2004 MontaVista Software, Inc.
12 * Maintainer: Deepak Saxena <dsaxena@plexity.net>
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2 as
16 * published by the Free Software Foundation.
20 #include <linux/kernel.h>
21 #include <linux/pci.h>
22 #include <linux/init.h>
23 #include <linux/irq.h>
24 #include <linux/delay.h>
26 #include <asm/mach/pci.h>
28 #include <asm/hardware.h>
29 #include <asm/mach-types.h>
31 void __init avila_pci_preinit(void)
33 set_irq_type(IRQ_AVILA_PCI_INTA, IRQT_LOW);
34 set_irq_type(IRQ_AVILA_PCI_INTB, IRQT_LOW);
35 set_irq_type(IRQ_AVILA_PCI_INTC, IRQT_LOW);
36 set_irq_type(IRQ_AVILA_PCI_INTD, IRQT_LOW);
41 static int __init avila_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
43 static int pci_irq_table[AVILA_PCI_IRQ_LINES] = {
53 slot <= (machine_is_loft() ? LOFT_PCI_MAX_DEV : AVILA_PCI_MAX_DEV) &&
54 pin >= 1 && pin <= AVILA_PCI_IRQ_LINES) {
55 irq = pci_irq_table[(slot + pin - 2) % 4];
61 struct hw_pci avila_pci __initdata = {
63 .preinit = avila_pci_preinit,
64 .swizzle = pci_std_swizzle,
65 .setup = ixp4xx_setup,
66 .scan = ixp4xx_scan_bus,
67 .map_irq = avila_map_irq,
70 int __init avila_pci_init(void)
72 if (machine_is_avila() || machine_is_loft())
73 pci_common_init(&avila_pci);
77 subsys_initcall(avila_pci_init);