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/*
* arch/sh/pci/fixups-dreamcast.c
*
* PCI fixups for the Sega Dreamcast
*
* Copyright (C) 2001, 2002 M. R. Brown
* Copyright (C) 2002, 2003 Paul Mundt
*
* This file originally bore the message (with enclosed-$):
* Id: pci.c,v 1.3 2003/05/04 19:29:46 lethal Exp
* Dreamcast PCI: Supports SEGA Broadband Adaptor only.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/config.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/pci.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mach/pci.h>
static void __init gapspci_fixup_resources(struct pci_dev *dev)
{
struct pci_channel *p = board_pci_channels;
printk(KERN_NOTICE "PCI: Fixing up device %s\n", pci_name(dev));
switch (dev->device) {
case PCI_DEVICE_ID_SEGA_BBA:
/*
* We also assume that dev->devfn == 0
*/
dev->resource[1].start = p->io_resource->start + 0x100;
dev->resource[1].end = dev->resource[1].start + 0x200 - 1;
break;
default:
printk("PCI: Failed resource fixup\n");
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, gapspci_fixup_resources);
void __init pcibios_fixup_bus(struct pci_bus *bus)
{
/*
* We don't have any sub bus to fix up, and this is a rather
* stupid place to put general device fixups. Don't do it.
* Use the pcibios_fixups table or suffer the consequences.
*/
}
void __init pcibios_fixup_irqs(void)
{
struct pci_dev *dev = 0;
for_each_pci_dev(dev) {
/*
* The interrupt routing semantics here are quite trivial.
*
* We basically only support one interrupt, so we only bother
* updating a device's interrupt line with this single shared
* interrupt. Keeps routing quite simple, doesn't it?
*/
printk(KERN_NOTICE "PCI: Fixing up IRQ routing for device %s\n",
pci_name(dev));
dev->irq = GAPSPCI_IRQ;
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
}
}
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