forked from Minki/linux
98f420b23a
Replace HW_zzz register access macros by regular __raw_readl/__raw_writel calls Signed-off-by: dmitry pervushin <dpervushin@embeddedalley.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/*
|
|
* Freescale STMP37XX/STMP378X common interrupt handling code
|
|
*
|
|
* Author: Vladislav Buzov <vbuzov@embeddedalley.com>
|
|
*
|
|
* Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
|
|
* Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
|
|
*/
|
|
|
|
/*
|
|
* The code contained herein is licensed under the GNU General Public
|
|
* License. You may obtain a copy of the GNU General Public License
|
|
* Version 2 or later at the following locations:
|
|
*
|
|
* http://www.opensource.org/licenses/gpl-license.html
|
|
* http://www.gnu.org/copyleft/gpl.html
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/sysdev.h>
|
|
|
|
#include <mach/stmp3xxx.h>
|
|
#include <mach/platform.h>
|
|
#include <mach/regs-icoll.h>
|
|
|
|
void __init stmp3xxx_init_irq(struct irq_chip *chip)
|
|
{
|
|
unsigned int i, lv;
|
|
|
|
/* Reset the interrupt controller */
|
|
stmp3xxx_reset_block(REGS_ICOLL_BASE + HW_ICOLL_CTRL, true);
|
|
|
|
/* Disable all interrupts initially */
|
|
for (i = 0; i < NR_REAL_IRQS; i++) {
|
|
chip->mask(i);
|
|
set_irq_chip(i, chip);
|
|
set_irq_handler(i, handle_level_irq);
|
|
set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
|
|
}
|
|
|
|
/* Ensure vector is cleared */
|
|
for (lv = 0; lv < 4; lv++)
|
|
__raw_writel(1 << lv, REGS_ICOLL_BASE + HW_ICOLL_LEVELACK);
|
|
__raw_writel(0, REGS_ICOLL_BASE + HW_ICOLL_VECTOR);
|
|
|
|
/* Barrier */
|
|
(void)__raw_readl(REGS_ICOLL_BASE + HW_ICOLL_STAT);
|
|
}
|
|
|