50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
||
|
|
/*
|
||
|
|
* Copyright 2001 MontaVista Software Inc.
|
||
|
|
* Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
|
||
|
|
* Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org)
|
||
|
|
*
|
||
|
|
* Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
|
||
|
|
* Author: Fuxin Zhang, zhangfx@lemote.com
|
||
|
|
*/
|
||
|
|
#include <linux/interrupt.h>
|
||
|
|
#include <linux/compiler.h>
|
||
|
|
|
||
|
|
#include <loongson.h>
|
||
|
|
|
||
|
|
static inline void bonito_irq_enable(struct irq_data *d)
|
||
|
|
{
|
||
|
|
LOONGSON_INTENSET = (1 << (d->irq - LOONGSON_IRQ_BASE));
|
||
|
|
mmiowb();
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void bonito_irq_disable(struct irq_data *d)
|
||
|
|
{
|
||
|
|
LOONGSON_INTENCLR = (1 << (d->irq - LOONGSON_IRQ_BASE));
|
||
|
|
mmiowb();
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct irq_chip bonito_irq_type = {
|
||
|
|
.name = "bonito_irq",
|
||
|
|
.irq_mask = bonito_irq_disable,
|
||
|
|
.irq_unmask = bonito_irq_enable,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct irqaction __maybe_unused dma_timeout_irqaction = {
|
||
|
|
.handler = no_action,
|
||
|
|
.name = "dma_timeout",
|
||
|
|
};
|
||
|
|
|
||
|
|
void bonito_irq_init(void)
|
||
|
|
{
|
||
|
|
u32 i;
|
||
|
|
|
||
|
|
for (i = LOONGSON_IRQ_BASE; i < LOONGSON_IRQ_BASE + 32; i++)
|
||
|
|
irq_set_chip_and_handler(i, &bonito_irq_type,
|
||
|
|
handle_level_irq);
|
||
|
|
|
||
|
|
#ifdef CONFIG_CPU_LOONGSON2E
|
||
|
|
setup_irq(LOONGSON_IRQ_BASE + 10, &dma_timeout_irqaction);
|
||
|
|
#endif
|
||
|
|
}
|