// SPDX-License-Identifier: GPL-2.0
/*
 * 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[] = { IRQ_IN3, IRQ_IN1, IRQ_IN0, IRQ_PCI };

static int ebsa285_map_irq(const 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 = {
        .map_irq                = ebsa285_map_irq,
        .nr_controllers         = 1,
        .ops                    = &dc21285_ops,
        .setup                  = dc21285_setup,
        .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);