72 lines
1.7 KiB
C
72 lines
1.7 KiB
C
|
/*
|
||
|
|
* arch/arm/mach-ixp4xx/nas100d-pci.c
|
||
|
|
*
|
||
|
|
* NAS 100d board-level PCI initialization
|
||
|
|
*
|
||
|
|
* based on ixdp425-pci.c:
|
||
|
|
* Copyright (C) 2002 Intel Corporation.
|
||
|
|
* Copyright (C) 2003-2004 MontaVista Software, Inc.
|
||
|
|
*
|
||
|
|
* Maintainer: http://www.nslu2-linux.org/
|
||
|
|
*
|
||
|
|
* 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/config.h>
|
||
|
|
#include <linux/pci.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
|
||
|
|
#include <asm/mach/pci.h>
|
||
|
|
#include <asm/mach-types.h>
|
||
|
|
|
||
|
|
void __init nas100d_pci_preinit(void)
|
||
|
|
{
|
||
|
|
set_irq_type(IRQ_NAS100D_PCI_INTA, IRQT_LOW);
|
||
|
|
set_irq_type(IRQ_NAS100D_PCI_INTB, IRQT_LOW);
|
||
|
|
set_irq_type(IRQ_NAS100D_PCI_INTC, IRQT_LOW);
|
||
|
|
set_irq_type(IRQ_NAS100D_PCI_INTD, IRQT_LOW);
|
||
|
|
set_irq_type(IRQ_NAS100D_PCI_INTE, IRQT_LOW);
|
||
|
|
|
||
|
|
ixp4xx_pci_preinit();
|
||
|
|
}
|
||
|
|
|
||
|
|
static int __init nas100d_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
|
||
|
|
{
|
||
|
|
static int pci_irq_table[NAS100D_PCI_MAX_DEV][NAS100D_PCI_IRQ_LINES] =
|
||
|
|
{
|
||
|
|
{ IRQ_NAS100D_PCI_INTA, -1, -1 },
|
||
|
|
{ IRQ_NAS100D_PCI_INTB, -1, -1 },
|
||
|
|
{ IRQ_NAS100D_PCI_INTC, IRQ_NAS100D_PCI_INTD, IRQ_NAS100D_PCI_INTE },
|
||
|
|
};
|
||
|
|
|
||
|
|
int irq = -1;
|
||
|
|
|
||
|
|
if (slot >= 1 && slot <= NAS100D_PCI_MAX_DEV &&
|
||
|
|
pin >= 1 && pin <= NAS100D_PCI_IRQ_LINES)
|
||
|
|
irq = pci_irq_table[slot-1][pin-1];
|
||
|
|
|
||
|
|
return irq;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct hw_pci __initdata nas100d_pci = {
|
||
|
|
.nr_controllers = 1,
|
||
|
|
.preinit = nas100d_pci_preinit,
|
||
|
|
.swizzle = pci_std_swizzle,
|
||
|
|
.setup = ixp4xx_setup,
|
||
|
|
.scan = ixp4xx_scan_bus,
|
||
|
|
.map_irq = nas100d_map_irq,
|
||
|
|
};
|
||
|
|
|
||
|
|
int __init nas100d_pci_init(void)
|
||
|
|
{
|
||
|
|
if (machine_is_nas100d())
|
||
|
|
pci_common_init(&nas100d_pci);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
subsys_initcall(nas100d_pci_init);
|