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ebsa285-pci.c

/*
 * linux/arch/arm/mach-footbridge/ebsa285-pci.c
 *
 * PCI bios-type initialisation for PCI machines
 *
 * Bits taken from various places.
 */
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/init.h>

#include <asm/irq.h>
#include <asm/mach/pci.h>
#include <asm/mach-types.h>

static int irqmap_ebsa285[] __initdata = { IRQ_IN3, IRQ_IN1, IRQ_IN0, IRQ_PCI };

static int __init ebsa285_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
      if (dev->vendor == PCI_VENDOR_ID_CONTAQ &&
          dev->device == PCI_DEVICE_ID_CONTAQ_82C693)
            switch (PCI_FUNC(dev->devfn)) {
            case 1:     return 14;
            case 2:     return 15;
            case 3:     return 12;
            }

      return irqmap_ebsa285[(slot + pin) & 3];
}

static struct hw_pci ebsa285_pci __initdata = {
      .swizzle          = pci_std_swizzle,
      .map_irq          = ebsa285_map_irq,
      .nr_controllers         = 1,
      .setup                  = dc21285_setup,
      .scan             = dc21285_scan_bus,
      .preinit          = dc21285_preinit,
      .postinit         = dc21285_postinit,
};

static int __init ebsa285_init_pci(void)
{
      if (machine_is_ebsa285())
            pci_common_init(&ebsa285_pci);
      return 0;
}

subsys_initcall(ebsa285_init_pci);

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