diff options
Diffstat (limited to 'bsps/arm/tms570/start/tms570-pom.c')
-rw-r--r-- | bsps/arm/tms570/start/tms570-pom.c | 46 |
1 files changed, 37 insertions, 9 deletions
diff --git a/bsps/arm/tms570/start/tms570-pom.c b/bsps/arm/tms570/start/tms570-pom.c index 8f31d01b77..f1a6d2d4af 100644 --- a/bsps/arm/tms570/start/tms570-pom.c +++ b/bsps/arm/tms570/start/tms570-pom.c @@ -1,22 +1,42 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + /** * @file * * @ingroup RTEMSBSPsARMTMS570 * - * @brief TMS570 Parameter Overlay Module functions definitions. + * @brief This source file contains the Parameter Overlay Module (POM) support + * implementation. */ - /* - * Copyright (c) 2014 Pavel Pisa <pisa@cmp.felk.cvut.cz> +/* + * Copyright (C) 2014 Pavel Pisa <pisa@cmp.felk.cvut.cz> * * Czech Technical University in Prague * Zikova 1903/4 * 166 36 Praha 6 * Czech Republic * - * 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. + * 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 <stdint.h> @@ -66,7 +86,7 @@ uint32_t pom_global_overlay_target_address_start = * * @retval Void */ -void tms570_initialize_and_clear(void) +void tms570_pom_initialize_and_clear(void) { int i; @@ -87,7 +107,12 @@ void tms570_initialize_and_clear(void) */ void tms570_pom_remap(void) { - uint32_t vec_overlay_start = pom_global_overlay_target_address_start; + void *vec_overlay_start = (void *) pom_global_overlay_target_address_start; + void *addr_tab = (char *) bsp_start_vector_table_begin + 64; + + if (vec_overlay_start == addr_tab) { + return; + } /* * Copy RTEMS the first level exception processing code @@ -99,7 +124,10 @@ void tms570_pom_remap(void) * table found in * c/src/lib/libbsp/arm/shared/start/start.S */ - memcpy((void*)vec_overlay_start, bsp_start_vector_table_begin, 64); + rtems_cache_invalidate_multiple_data_lines(addr_tab, 64); + memcpy(vec_overlay_start, addr_tab, 64); + rtems_cache_flush_multiple_data_lines(vec_overlay_start, 64); + rtems_cache_invalidate_multiple_instruction_lines(vec_overlay_start, 64); #if 0 { |