]>
Commit | Line | Data |
---|---|---|
3145d8a6 RW |
1 | /* |
2 | * arch/arm/mach-ixp4xx/nas100d-pci.c | |
3 | * | |
4 | * NAS 100d board-level PCI initialization | |
5 | * | |
6 | * based on ixdp425-pci.c: | |
7 | * Copyright (C) 2002 Intel Corporation. | |
8 | * Copyright (C) 2003-2004 MontaVista Software, Inc. | |
9 | * | |
10 | * Maintainer: http://www.nslu2-linux.org/ | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License version 2 as | |
14 | * published by the Free Software Foundation. | |
15 | * | |
16 | */ | |
17 | ||
3145d8a6 RW |
18 | #include <linux/pci.h> |
19 | #include <linux/init.h> | |
20 | ||
21 | #include <asm/mach/pci.h> | |
22 | #include <asm/mach-types.h> | |
23 | ||
24 | void __init nas100d_pci_preinit(void) | |
25 | { | |
26 | set_irq_type(IRQ_NAS100D_PCI_INTA, IRQT_LOW); | |
27 | set_irq_type(IRQ_NAS100D_PCI_INTB, IRQT_LOW); | |
28 | set_irq_type(IRQ_NAS100D_PCI_INTC, IRQT_LOW); | |
29 | set_irq_type(IRQ_NAS100D_PCI_INTD, IRQT_LOW); | |
30 | set_irq_type(IRQ_NAS100D_PCI_INTE, IRQT_LOW); | |
31 | ||
3145d8a6 RW |
32 | ixp4xx_pci_preinit(); |
33 | } | |
34 | ||
35 | static int __init nas100d_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | |
36 | { | |
37 | static int pci_irq_table[NAS100D_PCI_MAX_DEV][NAS100D_PCI_IRQ_LINES] = | |
38 | { | |
39 | { IRQ_NAS100D_PCI_INTA, -1, -1 }, | |
40 | { IRQ_NAS100D_PCI_INTB, -1, -1 }, | |
41 | { IRQ_NAS100D_PCI_INTC, IRQ_NAS100D_PCI_INTD, IRQ_NAS100D_PCI_INTE }, | |
42 | }; | |
43 | ||
44 | int irq = -1; | |
45 | ||
46 | if (slot >= 1 && slot <= NAS100D_PCI_MAX_DEV && | |
47 | pin >= 1 && pin <= NAS100D_PCI_IRQ_LINES) | |
48 | irq = pci_irq_table[slot-1][pin-1]; | |
49 | ||
50 | return irq; | |
51 | } | |
52 | ||
53 | struct hw_pci __initdata nas100d_pci = { | |
54 | .nr_controllers = 1, | |
55 | .preinit = nas100d_pci_preinit, | |
56 | .swizzle = pci_std_swizzle, | |
57 | .setup = ixp4xx_setup, | |
58 | .scan = ixp4xx_scan_bus, | |
59 | .map_irq = nas100d_map_irq, | |
60 | }; | |
61 | ||
62 | int __init nas100d_pci_init(void) | |
63 | { | |
64 | if (machine_is_nas100d()) | |
65 | pci_common_init(&nas100d_pci); | |
66 | ||
67 | return 0; | |
68 | } | |
69 | ||
70 | subsys_initcall(nas100d_pci_init); |