Linux Kernel  3.7.1
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coyote-pci.c
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1 /*
2  * arch/arm/mach-ixp4xx/coyote-pci.c
3  *
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 <[email protected]>
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>
20 #include <linux/irq.h>
21 #include <asm/mach-types.h>
22 #include <mach/hardware.h>
23 #include <asm/irq.h>
24 #include <asm/mach/pci.h>
25 
26 #define SLOT0_DEVID 14
27 #define SLOT1_DEVID 15
28 
29 /* PCI controller GPIO to IRQ pin mappings */
30 #define SLOT0_INTA 6
31 #define SLOT1_INTA 11
32 
34 {
38 }
39 
40 static int __init coyote_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
41 {
42  if (slot == SLOT0_DEVID)
44  else if (slot == SLOT1_DEVID)
46  else return -1;
47 }
48 
49 struct hw_pci coyote_pci __initdata = {
50  .nr_controllers = 1,
51  .ops = &ixp4xx_ops,
52  .preinit = coyote_pci_preinit,
53  .setup = ixp4xx_setup,
54  .map_irq = coyote_map_irq,
55 };
56 
58 {
59  if (machine_is_adi_coyote())
60  pci_common_init(&coyote_pci);
61  return 0;
62 }
63