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

   1 /*
   2  * arch/sh/boards/mach-landisk/irq.c
   3  *
   4  * I-O DATA Device, Inc. LANDISK Support
   5  *
   6  * Copyright (C) 2005-2007 kogiidena
   7  * Copyright (C) 2011 Nobuhiro Iwamatsu
   8  *
   9  * Copyright (C) 2001  Ian da Silva, Jeremy Siegel
  10  * Based largely on io_se.c.
  11  *
  12  * This file is subject to the terms and conditions of the GNU General Public
  13  * License.  See the file "COPYING" in the main directory of this archive
  14  * for more details.
  15  */
  16
  17 #include <linux/init.h>
  18 #include <linux/irq.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/io.h>
  21 #include <mach-landisk/mach/iodata_landisk.h>
  22
  23 enum {
  24         UNUSED = 0,
  25
  26         PCI_INTA, /* PCI int A */
  27         PCI_INTB, /* PCI int B */
  28         PCI_INTC, /* PCI int C */
  29         PCI_INTD, /* PCI int D */
  30         ATA,      /* ATA */
  31         FATA,     /* CF */
  32         POWER,    /* Power swtich */
  33         BUTTON,   /* Button swtich */
  34 };
  35
  36 /* Vectors for LANDISK */
  37 static struct intc_vect vectors_landisk[] __initdata = {
  38         INTC_IRQ(PCI_INTA, IRQ_PCIINTA),
  39         INTC_IRQ(PCI_INTB, IRQ_PCIINTB),
  40         INTC_IRQ(PCI_INTC, IRQ_PCIINTC),
  41         INTC_IRQ(PCI_INTD, IRQ_PCIINTD),
  42         INTC_IRQ(ATA, IRQ_ATA),
  43         INTC_IRQ(FATA, IRQ_FATA),
  44         INTC_IRQ(POWER, IRQ_POWER),
  45         INTC_IRQ(BUTTON, IRQ_BUTTON),
  46 };
  47
  48 /* IRLMSK mask register layout for LANDISK */
  49 static struct intc_mask_reg mask_registers_landisk[] __initdata = {
  50         { PA_IMASK, 0, 8, /* IRLMSK */
  51           {  BUTTON, POWER, FATA, ATA,
  52              PCI_INTD, PCI_INTC, PCI_INTB, PCI_INTA,
  53           }
  54         },
  55 };
  56
  57 static DECLARE_INTC_DESC(intc_desc_landisk, "landisk", vectors_landisk, NULL,
  58                         mask_registers_landisk, NULL, NULL);
  59 /*
  60  * Initialize IRQ setting
  61  */
  62 void __init init_landisk_IRQ(void)
  63 {
  64         register_intc_controller(&intc_desc_landisk);
  65         __raw_writeb(0x00, PA_PWRINT_CLR);
  66 }