blob: b978ea8bd6f09ed723aa18d2d7b7f23ceef93363 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Uwe Zeisbergerf30c2262006-10-03 23:01:26 +02002 * arch/arm/mach-ixp4xx/coyote-pci.c
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 *
4 * PCI setup routines for ADI Engineering Coyote platform
5 *
6 * Copyright (C) 2002 Jungo Software Technologies.
7 * Copyright (C) 2003 MontaVista Softwrae, Inc.
8 *
9 * Maintainer: Deepak Saxena <dsaxena@mvista.com>
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
14 *
15 */
16
17#include <linux/kernel.h>
18#include <linux/pci.h>
19#include <linux/init.h>
Thomas Gleixner698dfe22006-07-01 23:01:49 +010020#include <linux/irq.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#include <asm/mach-types.h>
Russell Kinga09e64f2008-08-05 16:14:15 +010022#include <mach/hardware.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include <asm/irq.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070024#include <asm/mach/pci.h>
25
Krzysztof Hałasa8d3fdf32009-11-17 18:48:23 +010026#define SLOT0_DEVID 14
27#define SLOT1_DEVID 15
Krzysztof Hałasaf89f4492009-11-16 15:57:41 +010028
29/* PCI controller GPIO to IRQ pin mappings */
Krzysztof Hałasa8d3fdf32009-11-17 18:48:23 +010030#define SLOT0_INTA 6
31#define SLOT1_INTA 11
Krzysztof Hałasaf89f4492009-11-16 15:57:41 +010032
Linus Torvalds1da177e2005-04-16 15:20:36 -070033void __init coyote_pci_preinit(void)
34{
Krzysztof Hałasa8d3fdf32009-11-17 18:48:23 +010035 set_irq_type(IXP4XX_GPIO_IRQ(SLOT0_INTA), IRQ_TYPE_LEVEL_LOW);
36 set_irq_type(IXP4XX_GPIO_IRQ(SLOT1_INTA), IRQ_TYPE_LEVEL_LOW);
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 ixp4xx_pci_preinit();
38}
39
40static int __init coyote_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
41{
Krzysztof Hałasa8d3fdf32009-11-17 18:48:23 +010042 if (slot == SLOT0_DEVID)
43 return IXP4XX_GPIO_IRQ(SLOT0_INTA);
44 else if (slot == SLOT1_DEVID)
45 return IXP4XX_GPIO_IRQ(SLOT1_INTA);
Linus Torvalds1da177e2005-04-16 15:20:36 -070046 else return -1;
47}
48
49struct hw_pci coyote_pci __initdata = {
50 .nr_controllers = 1,
51 .preinit = coyote_pci_preinit,
52 .swizzle = pci_std_swizzle,
53 .setup = ixp4xx_setup,
54 .scan = ixp4xx_scan_bus,
55 .map_irq = coyote_map_irq,
56};
57
58int __init coyote_pci_init(void)
59{
60 if (machine_is_adi_coyote())
61 pci_common_init(&coyote_pci);
62 return 0;
63}
64
65subsys_initcall(coyote_pci_init);