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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (c) 2013, 2018 embedded brains GmbH. All rights reserved.
*
* 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 <rtems/score/armv7m.h>
#include <bsp.h>
#include <imxrt/mpu-config.h>
#include <chip.h>
#include <fsl_pin_mux.h>
#include <fsl_clock_config.h>
BSP_START_TEXT_SECTION void bsp_start_hook_0(void)
{
/* FIXME: Initializing SDRAM is currently done by DCD. It would be more user
* friendly if that would be done here with a readable structure. */
if ((SCB->CCR & SCB_CCR_IC_Msk) == 0) {
SCB_EnableICache();
}
if ((SCB->CCR & SCB_CCR_DC_Msk) == 0) {
SCB_EnableDCache();
}
_ARMV7M_MPU_Setup(imxrt_config_mpu_region, imxrt_config_mpu_region_count);
}
BSP_START_TEXT_SECTION void bsp_start_hook_1(void)
{
bsp_start_copy_sections_compact();
SCB_CleanDCache();
SCB_InvalidateICache();
bsp_start_clear_bss();
BOARD_BootClockRUN();
BOARD_InitDEBUG_UARTPins();
/* Reduce frequency for I2C */
CLOCK_SetDiv(kCLOCK_Lpi2cDiv, 5);
/* Enable EDMA clock. We initialize the EDMA so we need the clock. */
CLOCK_EnableClock(kCLOCK_Dma);
}
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