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/*
* Copyright (c) 2011 Sebastian Huber. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/score/cpu.h>
#ifdef ARM_MULTILIB_ARCH_V7M
#include <rtems/score/armv7m.h>
void _CPU_Initialize( void )
{
/*
* The exception handler used to carry out the thead dispatching must have
* the lowest priority possible. No other exception handlers must have this
* priority if they use services that may lead to a thread dispatch. See
* also "ARMv7-M Architecture Reference Manual, Issue D" section B1.5.4
* "Exception priorities and preemption".
*/
_ARMV7M_Set_exception_priority_and_handler(
ARMV7M_VECTOR_SVC,
ARMV7M_EXCEPTION_PRIORITY_LOWEST,
_ARMV7M_Supervisor_call
);
_ARMV7M_Set_exception_priority_and_handler(
ARMV7M_VECTOR_PENDSV,
ARMV7M_EXCEPTION_PRIORITY_LOWEST,
_ARMV7M_Pendable_service_call
);
}
#endif /* ARM_MULTILIB_ARCH_V7M */
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