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-rw-r--r--arch/mips/loongson/common/bonito-irq.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/mips/loongson/common/bonito-irq.c b/arch/mips/loongson/common/bonito-irq.c
new file mode 100644
index 000000000000..3e31e7ad713e
--- /dev/null
+++ b/arch/mips/loongson/common/bonito-irq.c
@@ -0,0 +1,51 @@
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. & Insititute 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
16#include <loongson.h>
17
18static inline void bonito_irq_enable(unsigned int irq)
19{
20 BONITO_INTENSET = (1 << (irq - BONITO_IRQ_BASE));
21 mmiowb();
22}
23
24static inline void bonito_irq_disable(unsigned int irq)
25{
26 BONITO_INTENCLR = (1 << (irq - BONITO_IRQ_BASE));
27 mmiowb();
28}
29
30static struct irq_chip bonito_irq_type = {
31 .name = "bonito_irq",
32 .ack = bonito_irq_disable,
33 .mask = bonito_irq_disable,
34 .mask_ack = bonito_irq_disable,
35 .unmask = bonito_irq_enable,
36};
37
38static struct irqaction dma_timeout_irqaction = {
39 .handler = no_action,
40 .name = "dma_timeout",
41};
42
43void bonito_irq_init(void)
44{
45 u32 i;
46
47 for (i = BONITO_IRQ_BASE; i < BONITO_IRQ_BASE + 32; i++)
48 set_irq_chip_and_handler(i, &bonito_irq_type, handle_level_irq);
49
50 setup_irq(BONITO_IRQ_BASE + 10, &dma_timeout_irqaction);
51}