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/*
* Copyright (C) 2011 Google, Inc.
*
* Author:
* Colin Cross <ccross@android.com>
*
* Copyright (C) 2010, NVIDIA Corporation
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <asm/hardware/gic.h>
#include <mach/iomap.h>
#include <mach/legacy_irq.h>
#include "board.h"
static void tegra_mask(struct irq_data *d)
{
if (d->irq >= 32)
tegra_legacy_mask_irq(d->irq);
}
static void tegra_unmask(struct irq_data *d)
{
if (d->irq >= 32)
tegra_legacy_unmask_irq(d->irq);
}
static void tegra_ack(struct irq_data *d)
{
if (d->irq >= 32)
tegra_legacy_force_irq_clr(d->irq);
}
static int tegra_retrigger(struct irq_data *d)
{
if (d->irq < 32)
return 0;
tegra_legacy_force_irq_set(d->irq);
return 1;
}
void __init tegra_init_irq(void)
{
tegra_init_legacy_irq();
gic_arch_extn.irq_ack = tegra_ack;
gic_arch_extn.irq_mask = tegra_mask;
gic_arch_extn.irq_unmask = tegra_unmask;
gic_arch_extn.irq_retrigger = tegra_retrigger;
gic_init(0, 29, IO_ADDRESS(TEGRA_ARM_INT_DIST_BASE),
IO_ADDRESS(TEGRA_ARM_PERIF_BASE + 0x100));
}
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