nes-proj/drivers/cpu/cc26xx-cc13xx/fault-handlers.c

55 lines
2.6 KiB
C

/*
* Copyright (c) 2014, Texas Instruments Incorporated - http://www.ti.com/
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*---------------------------------------------------------------------------*/
#include "inc/hw_types.h"
#include "inc/hw_memmap.h"
#include "inc/hw_cpu_scs.h"
/*---------------------------------------------------------------------------*/
#define fault_handlers_hard_fault_isr FaultISR
/*---------------------------------------------------------------------------*/
void
fault_handlers_hard_fault_isr(void)
{
/*
* Workaround for (Im)precise Bus Faults caused under unknown circumstances,
* likely by access to RFC registers while the RF PD is off (which is
* something that should never happen because we do in fact check before
* accessing)
*/
if((HWREG(CPU_SCS_BASE + CPU_SCS_O_CFSR) == CPU_SCS_CFSR_IMPRECISERR) ||
(HWREG(CPU_SCS_BASE + CPU_SCS_O_CFSR) & CPU_SCS_CFSR_PRECISERR)){
/* ToDo: Check BFARVALID and then BFAR to filter down even further */
return;
}
while(1);
}
/*---------------------------------------------------------------------------*/