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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsARMTMS570
*
* @brief This source file contains the bsp_start_hook_1(0 implementation.
*/
/*
* Copyright (C) 2014 Premysl Houdek <kom541000@gmail.com>
*
* Google Summer of Code 2014 at
* Czech Technical University in Prague
* Zikova 1903/4
* 166 36 Praha 6
* Czech Republic
*
* 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.
*
* 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 OWNER 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 <bsp/start.h>
#include <libcpu/arm-cp15.h>
BSP_START_TEXT_SECTION void bsp_start_hook_1( void )
{
uint32_t ctrl;
size_t size;
ctrl = arm_cp15_get_control();
if ( ( ctrl & ARM_CP15_CTRL_I ) == 0 ) {
rtems_cache_invalidate_entire_instruction();
ctrl |= ARM_CP15_CTRL_I;
arm_cp15_set_control(ctrl);
}
if ( ( ctrl & ARM_CP15_CTRL_C ) == 0 ) {
rtems_cache_invalidate_entire_data();
ctrl |= ARM_CP15_CTRL_C;
arm_cp15_set_control(ctrl);
}
bsp_start_copy_sections_compact();
bsp_start_clear_bss();
size =(size_t) bsp_section_fast_text_size;
RTEMS_OBFUSCATE_VARIABLE( size );
if ( size != 0 ) {
rtems_cache_flush_multiple_data_lines( bsp_section_fast_text_begin, size );
}
}
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