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/*
* 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 COYOTE_PCI_SLOT0_DEVID 14
#define COYOTE_PCI_SLOT1_DEVID 15
/* PCI controller GPIO to IRQ pin mappings */
#define COYOTE_PCI_SLOT0_PIN 6
#define COYOTE_PCI_SLOT1_PIN 11
#define IRQ_COYOTE_PCI_SLOT0 IRQ_IXP4XX_GPIO6
#define IRQ_COYOTE_PCI_SLOT1 IRQ_IXP4XX_GPIO11
void __init coyote_pci_preinit(void)
{
set_irq_type(IRQ_COYOTE_PCI_SLOT0, IRQ_TYPE_LEVEL_LOW);
set_irq_type(IRQ_COYOTE_PCI_SLOT1, IRQ_TYPE_LEVEL_LOW);
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);
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