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/*
* Copyright (c) 2010 embedded brains GmbH.
*
* PXA255 Interrupt handler by Yang Xi <hiyangxi@gmail.com>
* Copyright (c) 2004 by Jay Monkman <jtm@lopingdog.com>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#include <bsp.h>
#include <bsp/irq.h>
#include <bsp/irq-generic.h>
#include <pxa255.h>
void bsp_interrupt_dispatch(void)
{
rtems_vector_number vector = 31 - __builtin_clz(XSCALE_INT_ICIP);
bsp_interrupt_handler_dispatch(vector);
}
rtems_status_code bsp_interrupt_vector_enable(rtems_vector_number vector)
{
XSCALE_INT_ICMR |= 1 << vector;
return RTEMS_SUCCESSFUL;
}
rtems_status_code bsp_interrupt_vector_disable(rtems_vector_number vector)
{
XSCALE_INT_ICMR &= ~(1 << vector);
return RTEMS_SUCCESSFUL;
}
rtems_status_code bsp_interrupt_facility_initialize(void)
{
/* disable all interrupts */
XSCALE_INT_ICMR = 0x0;
/* Direct the interrupt to IRQ*/
XSCALE_INT_ICLR = 0x0;
/* Install the IRQ exception handler */
_CPU_ISR_install_vector(ARM_EXCEPTION_IRQ, arm_exc_interrupt, NULL);
return RTEMS_SUCCESSFUL;
}
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