65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/*
|
|
* arch/arm/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 <linux/irq.h>
|
|
#include <asm/mach-types.h>
|
|
#include <mach/hardware.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/mach/pci.h>
|
|
|
|
#define SLOT0_DEVID 14
|
|
#define SLOT1_DEVID 15
|
|
|
|
/* PCI controller GPIO to IRQ pin mappings */
|
|
#define SLOT0_INTA 6
|
|
#define SLOT1_INTA 11
|
|
|
|
void __init coyote_pci_preinit(void)
|
|
{
|
|
irq_set_irq_type(IXP4XX_GPIO_IRQ(SLOT0_INTA), IRQ_TYPE_LEVEL_LOW);
|
|
irq_set_irq_type(IXP4XX_GPIO_IRQ(SLOT1_INTA), IRQ_TYPE_LEVEL_LOW);
|
|
ixp4xx_pci_preinit();
|
|
}
|
|
|
|
static int __init coyote_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
|
|
{
|
|
if (slot == SLOT0_DEVID)
|
|
return IXP4XX_GPIO_IRQ(SLOT0_INTA);
|
|
else if (slot == SLOT1_DEVID)
|
|
return IXP4XX_GPIO_IRQ(SLOT1_INTA);
|
|
else return -1;
|
|
}
|
|
|
|
struct hw_pci coyote_pci __initdata = {
|
|
.nr_controllers = 1,
|
|
.ops = &ixp4xx_ops,
|
|
.preinit = coyote_pci_preinit,
|
|
.setup = ixp4xx_setup,
|
|
.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);
|