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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsARMTMS570
*
* @brief This source file contains the bsp_reset() 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/bootcard.h>
#include <bsp/tms570.h>
#include <bsp/tms570-pom.h>
static void handle_esm_errors(uint32_t esm_irq_channel)
{
/* ESMR3 errors don't generate interrupts. */
if (esm_irq_channel < 0x20u) {
TMS570_ESM.SR[0] = 1 << esm_irq_channel;
} else if (esm_irq_channel < 0x40u) {
TMS570_ESM.SR[1] = 1 << (esm_irq_channel - 32u);
} else if (esm_irq_channel < 0x60u) {
TMS570_ESM.SR4 = 1 << (esm_irq_channel - 64u);
}
}
void bsp_reset(void)
{
rtems_interrupt_level level;
uint32_t esm_irq_channel;
rtems_interrupt_disable(level);
(void) level;
tms570_pom_initialize_and_clear();
esm_irq_channel = TMS570_ESM.IOFFHR - 1;
if (esm_irq_channel) {
handle_esm_errors(esm_irq_channel);
}
/* Reset the board */
/* write of value other than 1 cause system reset */
TMS570_SYS1.SYSECR = TMS570_SYS1_SYSECR_RESET(2);
}
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