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1da177e4 LT |
1 | /* |
2 | * arch/arch/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 <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> | |
20 | ||
21 | #include <asm/mach-types.h> | |
22 | #include <asm/hardware.h> | |
23 | #include <asm/irq.h> | |
24 | ||
25 | #include <asm/mach/pci.h> | |
26 | ||
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); | |
30 | ||
31 | void __init coyote_pci_preinit(void) | |
32 | { | |
33 | gpio_line_config(COYOTE_PCI_SLOT0_PIN, | |
34 | IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW); | |
35 | ||
36 | gpio_line_config(COYOTE_PCI_SLOT1_PIN, | |
37 | IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW); | |
38 | ||
39 | gpio_line_isr_clear(COYOTE_PCI_SLOT0_PIN); | |
40 | gpio_line_isr_clear(COYOTE_PCI_SLOT1_PIN); | |
41 | ||
42 | ixp4xx_pci_preinit(); | |
43 | } | |
44 | ||
45 | static int __init coyote_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | |
46 | { | |
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; | |
52 | } | |
53 | ||
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, | |
61 | }; | |
62 | ||
63 | int __init coyote_pci_init(void) | |
64 | { | |
65 | if (machine_is_adi_coyote()) | |
66 | pci_common_init(&coyote_pci); | |
67 | return 0; | |
68 | } | |
69 | ||
70 | subsys_initcall(coyote_pci_init); |