// SPDX-License-Identifier: GPL-2.0
/*
 * arch/sh/boards/mach-landisk/irq.c
 *
 * I-O DATA Device, Inc. LANDISK Support
 *
 * Copyright (C) 2005-2007 kogiidena
 * Copyright (C) 2011 Nobuhiro Iwamatsu
 *
 * Copyright (C) 2001  Ian da Silva, Jeremy Siegel
 * Based largely on io_se.c.
 */

#include <linux/init.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <mach-landisk/mach/iodata_landisk.h>

enum {
        UNUSED = 0,

        PCI_INTA, /* PCI int A */
        PCI_INTB, /* PCI int B */
        PCI_INTC, /* PCI int C */
        PCI_INTD, /* PCI int D */
        ATA,      /* ATA */
        FATA,     /* CF */
        POWER,    /* Power switch */
        BUTTON,   /* Button switch */
};

/* Vectors for LANDISK */
static struct intc_vect vectors_landisk[] __initdata = {
        INTC_IRQ(PCI_INTA, IRQ_PCIINTA),
        INTC_IRQ(PCI_INTB, IRQ_PCIINTB),
        INTC_IRQ(PCI_INTC, IRQ_PCIINTC),
        INTC_IRQ(PCI_INTD, IRQ_PCIINTD),
        INTC_IRQ(ATA, IRQ_ATA),
        INTC_IRQ(FATA, IRQ_FATA),
        INTC_IRQ(POWER, IRQ_POWER),
        INTC_IRQ(BUTTON, IRQ_BUTTON),
};

/* IRLMSK mask register layout for LANDISK */
static struct intc_mask_reg mask_registers_landisk[] __initdata = {
        { PA_IMASK, 0, 8, /* IRLMSK */
          {  BUTTON, POWER, FATA, ATA,
             PCI_INTD, PCI_INTC, PCI_INTB, PCI_INTA,
          }
        },
};

static DECLARE_INTC_DESC(intc_desc_landisk, "landisk", vectors_landisk, NULL,
                        mask_registers_landisk, NULL, NULL);
/*
 * Initialize IRQ setting
 */
void __init init_landisk_IRQ(void)
{
        register_intc_controller(&intc_desc_landisk);
        __raw_writeb(0x00, PA_PWRINT_CLR);
}