u-boot/cpu/arm920t/interrupts.c

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/*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Alex Zuepke <azu@sysgo.de>
*
* (C) Copyright 2002
* Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
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*
* 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
*/
#include <common.h>
#include <asm/proc-armv/ptrace.h>
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void do_irq (struct pt_regs *pt_regs)
{
#if defined (ARM920_IRQ_CALLBACK)
ARM920_IRQ_CALLBACK();
#elif defined (CONFIG_ARCH_INTEGRATOR)
/* ASSUMED to be a timer interrupt */
/* Just clear it - count handled in */
/* integratorap.c */
*(volatile ulong *)(CONFIG_SYS_TIMERBASE + 0x0C) = 0;
#else
#error do_irq() not defined for this cpu type
#endif
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}