arch/sh/boards/mach-landisk/irq.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * arch/sh/boards/mach-landisk/irq.c
   4  *
   5  * I-O DATA Device, Inc. LANDISK Support
   6  *
   7  * Copyright (C) 2005-2007 kogiidena
   8  * Copyright (C) 2011 Nobuhiro Iwamatsu
   9  *
  10  * Copyright (C) 2001  Ian da Silva, Jeremy Siegel
  11  * Based largely on io_se.c.
  12  */
  13
  14 #include <linux/init.h>
  15 #include <linux/irq.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/io.h>
  18 #include <mach-landisk/mach/iodata_landisk.h>
  19
  20 enum {
  21         UNUSED = 0,
  22
  23         PCI_INTA, /* PCI int A */
  24         PCI_INTB, /* PCI int B */
  25         PCI_INTC, /* PCI int C */
  26         PCI_INTD, /* PCI int D */
  27         ATA,      /* ATA */
  28         FATA,     /* CF */
  29         POWER,    /* Power switch */
  30         BUTTON,   /* Button switch */
  31 };
  32
  33 /* Vectors for LANDISK */
  34 static struct intc_vect vectors_landisk[] __initdata = {
  35         INTC_IRQ(PCI_INTA, IRQ_PCIINTA),
  36         INTC_IRQ(PCI_INTB, IRQ_PCIINTB),
  37         INTC_IRQ(PCI_INTC, IRQ_PCIINTC),
  38         INTC_IRQ(PCI_INTD, IRQ_PCIINTD),
  39         INTC_IRQ(ATA, IRQ_ATA),
  40         INTC_IRQ(FATA, IRQ_FATA),
  41         INTC_IRQ(POWER, IRQ_POWER),
  42         INTC_IRQ(BUTTON, IRQ_BUTTON),
  43 };
  44
  45 /* IRLMSK mask register layout for LANDISK */
  46 static struct intc_mask_reg mask_registers_landisk[] __initdata = {
  47         { PA_IMASK, 0, 8, /* IRLMSK */
  48           {  BUTTON, POWER, FATA, ATA,
  49              PCI_INTD, PCI_INTC, PCI_INTB, PCI_INTA,
  50           }
  51         },
  52 };
  53
  54 static DECLARE_INTC_DESC(intc_desc_landisk, "landisk", vectors_landisk, NULL,
  55                         mask_registers_landisk, NULL, NULL);
  56 /*
  57  * Initialize IRQ setting
  58  */
  59 void __init init_landisk_IRQ(void)
  60 {
  61         register_intc_controller(&intc_desc_landisk);
  62         __raw_writeb(0x00, PA_PWRINT_CLR);
  63 }