// SPDX-License-Identifier: GPL-2.0
/*
 * linux/arch/arm/mach-footbridge/netwinder-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>

/*
 * We now use the slot ID instead of the device identifiers to select
 * which interrupt is routed where.
 */
static int netwinder_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
        switch (slot) {
        case 0:  /* host bridge */
                return 0;

        case 9:  /* CyberPro */
                return IRQ_NETWINDER_VGA;

        case 10: /* DC21143 */
                return IRQ_NETWINDER_ETHER100;

        case 12: /* Winbond 553 */
                return IRQ_ISA_HARDDISK1;

        case 13: /* Winbond 89C940F */
                return IRQ_NETWINDER_ETHER10;

        default:
                printk(KERN_ERR "PCI: unknown device in slot %s\n",
                        pci_name(dev));
                return 0;
        }
}

static struct hw_pci netwinder_pci __initdata = {
        .map_irq                = netwinder_map_irq,
        .nr_controllers         = 1,
        .ops                    = &dc21285_ops,
        .setup                  = dc21285_setup,
        .preinit                = dc21285_preinit,
        .postinit               = dc21285_postinit,
};

static int __init netwinder_pci_init(void)
{
        if (machine_is_netwinder())
                pci_common_init(&netwinder_pci);
        return 0;
}

subsys_initcall(netwinder_pci_init);