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1da177e4 LT |
1 | /* |
2 | * arch/arch/mach-ixp4xx/ixdpg425-pci.c | |
3 | * | |
4 | * PCI setup routines for Intel IXDPG425 Platform | |
5 | * | |
6 | * Copyright (C) 2004 MontaVista Softwrae, Inc. | |
7 | * | |
8 | * Maintainer: Deepak Saxena <dsaxena@plexity.net> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | * | |
14 | */ | |
15 | ||
16 | #include <linux/kernel.h> | |
17 | #include <linux/pci.h> | |
18 | #include <linux/init.h> | |
19 | ||
20 | #include <asm/mach-types.h> | |
21 | #include <asm/hardware.h> | |
22 | #include <asm/irq.h> | |
23 | ||
24 | #include <asm/mach/pci.h> | |
25 | ||
26 | extern void ixp4xx_pci_preinit(void); | |
27 | extern int ixp4xx_setup(int nr, struct pci_sys_data *sys); | |
28 | extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys); | |
29 | ||
30 | void __init ixdpg425_pci_preinit(void) | |
31 | { | |
bdf82b59 DS |
32 | set_irq_type(IRQ_IXP4XX_GPIO6, IRQT_LOW); |
33 | set_irq_type(IRQ_IXP4XX_GPIO7, IRQT_LOW); | |
1da177e4 | 34 | |
1da177e4 LT |
35 | ixp4xx_pci_preinit(); |
36 | } | |
37 | ||
38 | static int __init ixdpg425_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | |
39 | { | |
40 | if (slot == 12 || slot == 13) | |
41 | return IRQ_IXP4XX_GPIO7; | |
42 | else if (slot == 14) | |
43 | return IRQ_IXP4XX_GPIO6; | |
44 | else return -1; | |
45 | } | |
46 | ||
47 | struct hw_pci ixdpg425_pci __initdata = { | |
48 | .nr_controllers = 1, | |
49 | .preinit = ixdpg425_pci_preinit, | |
50 | .swizzle = pci_std_swizzle, | |
51 | .setup = ixp4xx_setup, | |
52 | .scan = ixp4xx_scan_bus, | |
53 | .map_irq = ixdpg425_map_irq, | |
54 | }; | |
55 | ||
56 | int __init ixdpg425_pci_init(void) | |
57 | { | |
58 | if (machine_is_ixdpg425()) | |
59 | pci_common_init(&ixdpg425_pci); | |
60 | return 0; | |
61 | } | |
62 | ||
63 | subsys_initcall(ixdpg425_pci_init); |