diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-ixp4xx/ixdp425-pci.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/arm/mach-ixp4xx/ixdp425-pci.c')
-rw-r--r-- | arch/arm/mach-ixp4xx/ixdp425-pci.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp4xx/ixdp425-pci.c b/arch/arm/mach-ixp4xx/ixdp425-pci.c new file mode 100644 index 000000000000..c2ab9ebb5980 --- /dev/null +++ b/arch/arm/mach-ixp4xx/ixdp425-pci.c | |||
@@ -0,0 +1,84 @@ | |||
1 | /* | ||
2 | * arch/arm/mach-ixp4xx/ixdp425-pci.c | ||
3 | * | ||
4 | * IXDP425 board-level PCI initialization | ||
5 | * | ||
6 | * Copyright (C) 2002 Intel Corporation. | ||
7 | * Copyright (C) 2003-2004 MontaVista Software, Inc. | ||
8 | * | ||
9 | * Maintainer: Deepak Saxena <dsaxena@plexity.net> | ||
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/config.h> | ||
19 | #include <linux/pci.h> | ||
20 | #include <linux/init.h> | ||
21 | #include <linux/delay.h> | ||
22 | |||
23 | #include <asm/mach/pci.h> | ||
24 | #include <asm/irq.h> | ||
25 | #include <asm/hardware.h> | ||
26 | #include <asm/mach-types.h> | ||
27 | |||
28 | void __init ixdp425_pci_preinit(void) | ||
29 | { | ||
30 | gpio_line_config(IXDP425_PCI_INTA_PIN, | ||
31 | IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW); | ||
32 | gpio_line_config(IXDP425_PCI_INTB_PIN, | ||
33 | IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW); | ||
34 | gpio_line_config(IXDP425_PCI_INTC_PIN, | ||
35 | IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW); | ||
36 | gpio_line_config(IXDP425_PCI_INTD_PIN, | ||
37 | IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW); | ||
38 | |||
39 | gpio_line_isr_clear(IXDP425_PCI_INTA_PIN); | ||
40 | gpio_line_isr_clear(IXDP425_PCI_INTB_PIN); | ||
41 | gpio_line_isr_clear(IXDP425_PCI_INTC_PIN); | ||
42 | gpio_line_isr_clear(IXDP425_PCI_INTD_PIN); | ||
43 | |||
44 | ixp4xx_pci_preinit(); | ||
45 | } | ||
46 | |||
47 | static int __init ixdp425_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | ||
48 | { | ||
49 | static int pci_irq_table[IXDP425_PCI_IRQ_LINES] = { | ||
50 | IRQ_IXDP425_PCI_INTA, | ||
51 | IRQ_IXDP425_PCI_INTB, | ||
52 | IRQ_IXDP425_PCI_INTC, | ||
53 | IRQ_IXDP425_PCI_INTD | ||
54 | }; | ||
55 | |||
56 | int irq = -1; | ||
57 | |||
58 | if (slot >= 1 && slot <= IXDP425_PCI_MAX_DEV && | ||
59 | pin >= 1 && pin <= IXDP425_PCI_IRQ_LINES) { | ||
60 | irq = pci_irq_table[(slot + pin - 2) % 4]; | ||
61 | } | ||
62 | |||
63 | return irq; | ||
64 | } | ||
65 | |||
66 | struct hw_pci ixdp425_pci __initdata = { | ||
67 | .nr_controllers = 1, | ||
68 | .preinit = ixdp425_pci_preinit, | ||
69 | .swizzle = pci_std_swizzle, | ||
70 | .setup = ixp4xx_setup, | ||
71 | .scan = ixp4xx_scan_bus, | ||
72 | .map_irq = ixdp425_map_irq, | ||
73 | }; | ||
74 | |||
75 | int __init ixdp425_pci_init(void) | ||
76 | { | ||
77 | if (machine_is_ixdp425() || machine_is_ixcdp1100() || | ||
78 | machine_is_avila() || machine_is_ixdp465()) | ||
79 | pci_common_init(&ixdp425_pci); | ||
80 | return 0; | ||
81 | } | ||
82 | |||
83 | subsys_initcall(ixdp425_pci_init); | ||
84 | |||