1/*
 2 * Shared support for SH-X3 interrupt controllers.
 3 *
 4 *  Copyright (C) 2009 - 2010  Paul Mundt
 5 *
 6 * This file is subject to the terms and conditions of the GNU General Public
 7 * License.  See the file "COPYING" in the main directory of this archive
 8 * for more details.
 9 */
10#include <linux/irq.h>
11#include <linux/io.h>
12#include <linux/init.h>
13
14#define INTACK		0xfe4100b8
15#define INTACKCLR	0xfe4100bc
16#define INTC_USERIMASK	0xfe411000
17
18#ifdef CONFIG_INTC_BALANCING
19unsigned int irq_lookup(unsigned int irq)
20{
21	return __raw_readl(INTACK) & 1 ? irq : NO_IRQ_IGNORE;
22}
23
24void irq_finish(unsigned int irq)
25{
26	__raw_writel(irq2evt(irq), INTACKCLR);
27}
28#endif
29
30static int __init shx3_irq_setup(void)
31{
32	return register_intc_userimask(INTC_USERIMASK);
33}
34arch_initcall(shx3_irq_setup);

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Shared support for SH-X3 interrupt controllers.
 4 *
 5 *  Copyright (C) 2009 - 2010  Paul Mundt
 
 
 
 
 6 */
 7#include <linux/irq.h>
 8#include <linux/io.h>
 9#include <linux/init.h>
10
11#define INTACK		0xfe4100b8
12#define INTACKCLR	0xfe4100bc
13#define INTC_USERIMASK	0xfe411000
14
15#ifdef CONFIG_INTC_BALANCING
16unsigned int irq_lookup(unsigned int irq)
17{
18	return __raw_readl(INTACK) & 1 ? irq : NO_IRQ_IGNORE;
19}
20
21void irq_finish(unsigned int irq)
22{
23	__raw_writel(irq2evt(irq), INTACKCLR);
24}
25#endif
26
27static int __init shx3_irq_setup(void)
28{
29	return register_intc_userimask(INTC_USERIMASK);
30}
31arch_initcall(shx3_irq_setup);