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sh: intc - convert board specific landisk code

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

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigarui.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Nobuhiro Iwamatsu 2011-01-07 03:02:14 +00:00 committed by Paul Mundt
parent 418f219c25
commit 144cd59687
1 changed files with 37 additions and 26 deletions
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63
arch/sh/boards/mach-landisk/irq.c
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@ -1,9 +1,10 @@
/*
* 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);
}
static void enable_landisk_irq(struct irq_data *data)
{
unsigned char value = (0x01 << (data->irq - 5));
__raw_writeb(__raw_readb(PA_IMASK) | value, PA_IMASK);
}
static struct irq_chip landisk_irq_chip __read_mostly = {
.name = "LANDISK",
.irq_mask = disable_landisk_irq,
.irq_unmask = enable_landisk_irq,
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 */
};
/* 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)
{
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);
}