u-boot/arch/m68k/cpu/mcf532x/interrupts.c

/*
 *
 * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

/* CPU specific interrupt routine */
#include <common.h>
#include <asm/immap.h>
#include <asm/io.h>

int interrupt_init(void)
{
	int0_t *intp = (int0_t *) (CONFIG_SYS_INTR_BASE);

	/* Make sure all interrupts are disabled */
	setbits_be32(&intp->imrh0, 0xffffffff);
	setbits_be32(&intp->imrl0, 0xffffffff);

	enable_interrupts();
	return 0;
}

#if defined(CONFIG_MCFTMR)
void dtimer_intr_setup(void)
{
	int0_t *intp = (int0_t *) (CONFIG_SYS_INTR_BASE);

	out_8(&intp->icr0[CONFIG_SYS_TMRINTR_NO], CONFIG_SYS_TMRINTR_PRI);
	clrbits_be32(&intp->imrh0, CONFIG_SYS_TMRINTR_MASK);
}
#endif