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Commit 144cd596 authored by Nobuhiro Iwamatsu's avatar Nobuhiro Iwamatsu Committed by Paul Mundt
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sh: intc - convert board specific landisk code 



This converts the board specific interrupt code for landisk to make
use of intc (use register_intc_controller).

Signed-off-by: default avatarNobuhiro Iwamatsu <iwamatsu@nigarui.org>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 418f219c

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

+35 −24
Original line number Diff line number Diff line 
/*

 * arch/sh/boards/landisk/irq.c

 * 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.
@@ -12,44 +13,54 @@ 
 * License.  See the file "COPYING" in the main directory of this archive

 * for more details.

 */



#include <linux/init.h>

#include <linux/irq.h>

#include <linux/interrupt.h>

#include <linux/io.h>

#include <mach-landisk/mach/iodata_landisk.h>



static void disable_landisk_irq(struct irq_data *data)

{

	unsigned char mask = 0xff ^ (0x01 << (data->irq - 5));

enum {

	UNUSED = 0,



	__raw_writeb(__raw_readb(PA_IMASK) & mask, PA_IMASK);

}

	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 swtich */

	BUTTON,	  /* Button swtich */

};



static void enable_landisk_irq(struct irq_data *data)

{

	unsigned char value = (0x01 << (data->irq - 5));

/* 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),

};



	__raw_writeb(__raw_readb(PA_IMASK) | value, PA_IMASK);

/* 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 struct irq_chip landisk_irq_chip __read_mostly = {

	.name		= "LANDISK",

	.irq_mask	= disable_landisk_irq,

	.irq_unmask	= enable_landisk_irq,

	},

};



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)

{

	int i;



	for (i = 5; i < 14; i++) {

		disable_irq_nosync(i);

		set_irq_chip_and_handler_name(i, &landisk_irq_chip,

					      handle_level_irq, "level");

		enable_landisk_irq(irq_get_irq_data(i));

	}

	register_intc_controller(&intc_desc_landisk);

	__raw_writeb(0x00, PA_PWRINT_CLR);

}