1/*
2 * Copyright 2001 MontaVista Software Inc.
3 * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
4 * Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org)
5 *
6 * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
7 * Author: Fuxin Zhang, zhangfx@lemote.com
8 *
9 *  This program is free software; you can redistribute	 it and/or modify it
10 *  under  the terms of	 the GNU General  Public License as published by the
11 *  Free Software Foundation;  either version 2 of the	License, or (at your
12 *  option) any later version.
13 */
14#include <linux/interrupt.h>
15#include <linux/compiler.h>
16
17#include <loongson.h>
18
19static inline void bonito_irq_enable(struct irq_data *d)
20{
21	LOONGSON_INTENSET = (1 << (d->irq - LOONGSON_IRQ_BASE));
22	mmiowb();
23}
24
25static inline void bonito_irq_disable(struct irq_data *d)
26{
27	LOONGSON_INTENCLR = (1 << (d->irq - LOONGSON_IRQ_BASE));
28	mmiowb();
29}
30
31static struct irq_chip bonito_irq_type = {
32	.name		= "bonito_irq",
33	.irq_mask	= bonito_irq_disable,
34	.irq_unmask	= bonito_irq_enable,
35};
36
37static struct irqaction __maybe_unused dma_timeout_irqaction = {
38	.handler	= no_action,
39	.name		= "dma_timeout",
40};
41
42void bonito_irq_init(void)
43{
44	u32 i;
45
46	for (i = LOONGSON_IRQ_BASE; i < LOONGSON_IRQ_BASE + 32; i++)
47		irq_set_chip_and_handler(i, &bonito_irq_type,
48					 handle_level_irq);
49
50#ifdef CONFIG_CPU_LOONGSON2E
51	setup_irq(LOONGSON_IRQ_BASE + 10, &dma_timeout_irqaction);
52#endif
53}
54