diff options
Diffstat (limited to 'bsps/arm/tms570/start/bspstarthooks.c')
| -rw-r--r-- | bsps/arm/tms570/start/bspstarthooks.c | 64 |
1 files changed, 48 insertions, 16 deletions
diff --git a/bsps/arm/tms570/start/bspstarthooks.c b/bsps/arm/tms570/start/bspstarthooks.c index 55a50ca65b..8dc7fdfdf8 100644 --- a/bsps/arm/tms570/start/bspstarthooks.c +++ b/bsps/arm/tms570/start/bspstarthooks.c @@ -1,14 +1,15 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + /** * @file * * @ingroup RTEMSBSPsARMTMS570 * - * @brief First configurations and initializations to the correct - * functionality of the board. + * @brief This source file contains the bsp_start_hook_1(0 implementation. */ /* - * Copyright (c) 2014 Premysl Houdek <kom541000@gmail.com> + * Copyright (C) 2014 Premysl Houdek <kom541000@gmail.com> * * Google Summer of Code 2014 at * Czech Technical University in Prague @@ -16,26 +17,57 @@ * 166 36 Praha 6 * Czech Republic * - * Based on LPC24xx and LPC1768 BSP - * by embedded brains GmbH and others + * 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. * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. + * 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.h> #include <bsp/start.h> - -BSP_START_TEXT_SECTION void bsp_start_hook_0( void ) -{ - ; -} +#include <libcpu/arm-cp15.h> BSP_START_TEXT_SECTION void bsp_start_hook_1( void ) { - bsp_start_copy_sections(); + 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(); - /* At this point we can use objects outside the .start section */ + 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 ); + } } |