35 lines
780 B
C
35 lines
780 B
C
|
/*
|
||
|
|
* Shared support for SH-X3 interrupt controllers.
|
||
|
|
*
|
||
|
|
* Copyright (C) 2009 - 2010 Paul Mundt
|
||
|
|
*
|
||
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
||
|
|
* License. See the file "COPYING" in the main directory of this archive
|
||
|
|
* for more details.
|
||
|
|
*/
|
||
|
|
#include <linux/irq.h>
|
||
|
|
#include <linux/io.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
|
||
|
|
#define INTACK 0xfe4100b8
|
||
|
|
#define INTACKCLR 0xfe4100bc
|
||
|
|
#define INTC_USERIMASK 0xfe411000
|
||
|
|
|
||
|
|
#ifdef CONFIG_INTC_BALANCING
|
||
|
|
unsigned int irq_lookup(unsigned int irq)
|
||
|
|
{
|
||
|
|
return __raw_readl(INTACK) & 1 ? irq : NO_IRQ_IGNORE;
|
||
|
|
}
|
||
|
|
|
||
|
|
void irq_finish(unsigned int irq)
|
||
|
|
{
|
||
|
|
__raw_writel(irq2evt(irq), INTACKCLR);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static int __init shx3_irq_setup(void)
|
||
|
|
{
|
||
|
|
return register_intc_userimask(INTC_USERIMASK);
|
||
|
|
}
|
||
|
|
arch_initcall(shx3_irq_setup);
|