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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/*
* arch/arch/mach-ixp4xx/coyote-pci.c
*
* PCI setup routines for ADI Engineering Coyote platform
*
* Copyright (C) 2002 Jungo Software Technologies.
* Copyright (C) 2003 MontaVista Softwrae, Inc.
*
* Maintainer: Deepak Saxena <dsaxena@mvista.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/mach/pci.h>
extern void ixp4xx_pci_preinit(void);
extern int ixp4xx_setup(int nr, struct pci_sys_data *sys);
extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys);
void __init coyote_pci_preinit(void)
{
gpio_line_config(COYOTE_PCI_SLOT0_PIN,
IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
gpio_line_config(COYOTE_PCI_SLOT1_PIN,
IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
gpio_line_isr_clear(COYOTE_PCI_SLOT0_PIN);
gpio_line_isr_clear(COYOTE_PCI_SLOT1_PIN);
ixp4xx_pci_preinit();
}
static int __init coyote_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
if (slot == COYOTE_PCI_SLOT0_DEVID)
return IRQ_COYOTE_PCI_SLOT0;
else if (slot == COYOTE_PCI_SLOT1_DEVID)
return IRQ_COYOTE_PCI_SLOT1;
else return -1;
}
struct hw_pci coyote_pci __initdata = {
.nr_controllers = 1,
.preinit = coyote_pci_preinit,
.swizzle = pci_std_swizzle,
.setup = ixp4xx_setup,
.scan = ixp4xx_scan_bus,
.map_irq = coyote_map_irq,
};
int __init coyote_pci_init(void)
{
if (machine_is_adi_coyote())
pci_common_init(&coyote_pci);
return 0;
}
subsys_initcall(coyote_pci_init);
|
