Linux 2.6.13-rc4
[linux-2.6/next.git] / arch / arm / mach-ixp4xx / coyote-pci.c
blobafafb42ae12951c8a96bc615328bee61a5565b07
1 /*
2 * arch/arch/mach-ixp4xx/coyote-pci.c
4 * PCI setup routines for ADI Engineering Coyote platform
6 * Copyright (C) 2002 Jungo Software Technologies.
7 * Copyright (C) 2003 MontaVista Softwrae, Inc.
9 * Maintainer: Deepak Saxena <dsaxena@mvista.com>
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.
17 #include <linux/kernel.h>
18 #include <linux/pci.h>
19 #include <linux/init.h>
21 #include <asm/mach-types.h>
22 #include <asm/hardware.h>
23 #include <asm/irq.h>
25 #include <asm/mach/pci.h>
27 extern void ixp4xx_pci_preinit(void);
28 extern int ixp4xx_setup(int nr, struct pci_sys_data *sys);
29 extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys);
31 void __init coyote_pci_preinit(void)
33 gpio_line_config(COYOTE_PCI_SLOT0_PIN,
34 IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
36 gpio_line_config(COYOTE_PCI_SLOT1_PIN,
37 IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
39 gpio_line_isr_clear(COYOTE_PCI_SLOT0_PIN);
40 gpio_line_isr_clear(COYOTE_PCI_SLOT1_PIN);
42 ixp4xx_pci_preinit();
45 static int __init coyote_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
47 if (slot == COYOTE_PCI_SLOT0_DEVID)
48 return IRQ_COYOTE_PCI_SLOT0;
49 else if (slot == COYOTE_PCI_SLOT1_DEVID)
50 return IRQ_COYOTE_PCI_SLOT1;
51 else return -1;
54 struct hw_pci coyote_pci __initdata = {
55 .nr_controllers = 1,
56 .preinit = coyote_pci_preinit,
57 .swizzle = pci_std_swizzle,
58 .setup = ixp4xx_setup,
59 .scan = ixp4xx_scan_bus,
60 .map_irq = coyote_map_irq,
63 int __init coyote_pci_init(void)
65 if (machine_is_adi_coyote())
66 pci_common_init(&coyote_pci);
67 return 0;
70 subsys_initcall(coyote_pci_init);