Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * arch/sh/pci/fixups-dreamcast.c |
| 3 | * |
| 4 | * PCI fixups for the Sega Dreamcast |
| 5 | * |
| 6 | * Copyright (C) 2001, 2002 M. R. Brown |
Paul Mundt | 959f85f | 2006-09-27 16:43:28 +0900 | [diff] [blame^] | 7 | * Copyright (C) 2002, 2003, 2006 Paul Mundt |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * |
| 9 | * This file originally bore the message (with enclosed-$): |
| 10 | * Id: pci.c,v 1.3 2003/05/04 19:29:46 lethal Exp |
| 11 | * Dreamcast PCI: Supports SEGA Broadband Adaptor only. |
| 12 | * |
| 13 | * This file is subject to the terms and conditions of the GNU General Public |
| 14 | * License. See the file "COPYING" in the main directory of this archive |
| 15 | * for more details. |
| 16 | */ |
| 17 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include <linux/sched.h> |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/param.h> |
| 21 | #include <linux/interrupt.h> |
| 22 | #include <linux/init.h> |
| 23 | #include <linux/irq.h> |
| 24 | #include <linux/pci.h> |
| 25 | |
| 26 | #include <asm/io.h> |
| 27 | #include <asm/irq.h> |
| 28 | #include <asm/mach/pci.h> |
| 29 | |
| 30 | static void __init gapspci_fixup_resources(struct pci_dev *dev) |
| 31 | { |
| 32 | struct pci_channel *p = board_pci_channels; |
| 33 | |
| 34 | printk(KERN_NOTICE "PCI: Fixing up device %s\n", pci_name(dev)); |
| 35 | |
| 36 | switch (dev->device) { |
| 37 | case PCI_DEVICE_ID_SEGA_BBA: |
| 38 | /* |
| 39 | * We also assume that dev->devfn == 0 |
| 40 | */ |
| 41 | dev->resource[1].start = p->io_resource->start + 0x100; |
| 42 | dev->resource[1].end = dev->resource[1].start + 0x200 - 1; |
| 43 | break; |
| 44 | default: |
| 45 | printk("PCI: Failed resource fixup\n"); |
| 46 | } |
| 47 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, gapspci_fixup_resources); |
| 49 | |
Paul Mundt | 959f85f | 2006-09-27 16:43:28 +0900 | [diff] [blame^] | 50 | int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | { |
Paul Mundt | 959f85f | 2006-09-27 16:43:28 +0900 | [diff] [blame^] | 52 | /* |
| 53 | * The interrupt routing semantics here are quite trivial. |
| 54 | * |
| 55 | * We basically only support one interrupt, so we only bother |
| 56 | * updating a device's interrupt line with this single shared |
| 57 | * interrupt. Keeps routing quite simple, doesn't it? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | */ |
Paul Mundt | 959f85f | 2006-09-27 16:43:28 +0900 | [diff] [blame^] | 59 | return GAPSPCI_IRQ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | } |