1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright 2001 MontaVista Software Inc.
4*4882a593Smuzhiyun * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
5*4882a593Smuzhiyun * Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org)
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
8*4882a593Smuzhiyun * Author: Fuxin Zhang, zhangfx@lemote.com
9*4882a593Smuzhiyun */
10*4882a593Smuzhiyun #include <linux/interrupt.h>
11*4882a593Smuzhiyun #include <linux/compiler.h>
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #include <loongson.h>
14*4882a593Smuzhiyun
bonito_irq_enable(struct irq_data * d)15*4882a593Smuzhiyun static inline void bonito_irq_enable(struct irq_data *d)
16*4882a593Smuzhiyun {
17*4882a593Smuzhiyun LOONGSON_INTENSET = (1 << (d->irq - LOONGSON_IRQ_BASE));
18*4882a593Smuzhiyun mmiowb();
19*4882a593Smuzhiyun }
20*4882a593Smuzhiyun
bonito_irq_disable(struct irq_data * d)21*4882a593Smuzhiyun static inline void bonito_irq_disable(struct irq_data *d)
22*4882a593Smuzhiyun {
23*4882a593Smuzhiyun LOONGSON_INTENCLR = (1 << (d->irq - LOONGSON_IRQ_BASE));
24*4882a593Smuzhiyun mmiowb();
25*4882a593Smuzhiyun }
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun static struct irq_chip bonito_irq_type = {
28*4882a593Smuzhiyun .name = "bonito_irq",
29*4882a593Smuzhiyun .irq_mask = bonito_irq_disable,
30*4882a593Smuzhiyun .irq_unmask = bonito_irq_enable,
31*4882a593Smuzhiyun };
32*4882a593Smuzhiyun
bonito_irq_init(void)33*4882a593Smuzhiyun void bonito_irq_init(void)
34*4882a593Smuzhiyun {
35*4882a593Smuzhiyun u32 i;
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun for (i = LOONGSON_IRQ_BASE; i < LOONGSON_IRQ_BASE + 32; i++)
38*4882a593Smuzhiyun irq_set_chip_and_handler(i, &bonito_irq_type,
39*4882a593Smuzhiyun handle_level_irq);
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun #ifdef CONFIG_CPU_LOONGSON2E
42*4882a593Smuzhiyun i = LOONGSON_IRQ_BASE + 10;
43*4882a593Smuzhiyun if (request_irq(i, no_action, 0, "dma_timeout", NULL))
44*4882a593Smuzhiyun pr_err("Failed to request irq %d (dma_timeout)\n", i);
45*4882a593Smuzhiyun #endif
46*4882a593Smuzhiyun }
47