1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * arch/arm/mach-ixp4xx/ixdpg425-pci.c
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * PCI setup routines for Intel IXDPG425 Platform
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Copyright (C) 2004 MontaVista Softwrae, Inc.
8*4882a593Smuzhiyun *
9*4882a593Smuzhiyun * Maintainer: Deepak Saxena <dsaxena@plexity.net>
10*4882a593Smuzhiyun */
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <linux/kernel.h>
13*4882a593Smuzhiyun #include <linux/pci.h>
14*4882a593Smuzhiyun #include <linux/init.h>
15*4882a593Smuzhiyun #include <linux/irq.h>
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun #include <asm/mach-types.h>
18*4882a593Smuzhiyun #include <mach/hardware.h>
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun #include <asm/mach/pci.h>
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun #include "irqs.h"
23*4882a593Smuzhiyun
ixdpg425_pci_preinit(void)24*4882a593Smuzhiyun void __init ixdpg425_pci_preinit(void)
25*4882a593Smuzhiyun {
26*4882a593Smuzhiyun irq_set_irq_type(IRQ_IXP4XX_GPIO6, IRQ_TYPE_LEVEL_LOW);
27*4882a593Smuzhiyun irq_set_irq_type(IRQ_IXP4XX_GPIO7, IRQ_TYPE_LEVEL_LOW);
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun ixp4xx_pci_preinit();
30*4882a593Smuzhiyun }
31*4882a593Smuzhiyun
ixdpg425_map_irq(const struct pci_dev * dev,u8 slot,u8 pin)32*4882a593Smuzhiyun static int __init ixdpg425_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
33*4882a593Smuzhiyun {
34*4882a593Smuzhiyun if (slot == 12 || slot == 13)
35*4882a593Smuzhiyun return IRQ_IXP4XX_GPIO7;
36*4882a593Smuzhiyun else if (slot == 14)
37*4882a593Smuzhiyun return IRQ_IXP4XX_GPIO6;
38*4882a593Smuzhiyun else return -1;
39*4882a593Smuzhiyun }
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun struct hw_pci ixdpg425_pci __initdata = {
42*4882a593Smuzhiyun .nr_controllers = 1,
43*4882a593Smuzhiyun .ops = &ixp4xx_ops,
44*4882a593Smuzhiyun .preinit = ixdpg425_pci_preinit,
45*4882a593Smuzhiyun .setup = ixp4xx_setup,
46*4882a593Smuzhiyun .map_irq = ixdpg425_map_irq,
47*4882a593Smuzhiyun };
48*4882a593Smuzhiyun
ixdpg425_pci_init(void)49*4882a593Smuzhiyun int __init ixdpg425_pci_init(void)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun if (machine_is_ixdpg425())
52*4882a593Smuzhiyun pci_common_init(&ixdpg425_pci);
53*4882a593Smuzhiyun return 0;
54*4882a593Smuzhiyun }
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun subsys_initcall(ixdpg425_pci_init);
57