5113f6f70
 김현기
kernel add
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/* PCI IRQ routing on the MN103E010 based ASB2305
*
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
*
* This is simple: All PCI interrupts route through the CPU's XIRQ1 pin [IRQ 35]
*/
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/io.h>
#include <asm/smp.h>
#include "pci-asb2305.h"
void __init pcibios_irq_init(void)
{
}
void __init pcibios_fixup_irqs(void)
{
struct pci_dev *dev = NULL;
u8 line, pin;
for_each_pci_dev(dev) {
pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
if (pin) {
dev->irq = XIRQ1;
pci_write_config_byte(dev, PCI_INTERRUPT_LINE,
dev->irq);
}
pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &line);
}
}
void pcibios_enable_irq(struct pci_dev *dev)
{
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
}
|