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-rw-r--r--bsps/arm/tms570/start/tms570-pom.c46
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
{