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/*
* Copyright (c) 2013, 2018 embedded brains GmbH. All rights reserved.
*
* 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.
*/
#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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