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/*
* Copyright (c) 2015, Freescale Semiconductor, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o 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.
*
* o Neither the name of Freescale Semiconductor, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 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 HOLDER 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 <stdbool.h>
#include "MCIMX7D_M4.h"
/* ----------------------------------------------------------------------------
-- Vector Table offset
---------------------------------------------------------------------------- */
#define VECT_TAB_OFFSET 0x0
/* ----------------------------------------------------------------------------
-- Core clock
---------------------------------------------------------------------------- */
uint32_t SystemCoreClock = 240000000;
/* ----------------------------------------------------------------------------
-- SystemInit()
---------------------------------------------------------------------------- */
void SystemInit(void)
{
// The Vector table base address is given by linker script.
#if defined(__CC_ARM)
extern uint32_t Image$$ER_m_text$$Base[];
#else
extern uint32_t __VECTOR_TABLE[];
#endif
#if ((1 == __FPU_PRESENT) && (1 == __FPU_USED))
SCB->CPACR |= ((3UL << 10*2)|(3UL << 11*2)); /* set CP10 and CP11 Full Access */
#endif
/* M4 core root SYS PLL Div2: 240MHz */
CCM_TARGET_ROOT1 = 0x11000000;
/* initialize cache */
// Enable I_Cache
// Enable D_Cache
/* relocate vector table */
#if defined(__CC_ARM)
SCB->VTOR = (uint32_t)Image$$ER_m_text$$Base + VECT_TAB_OFFSET;
#else
SCB->VTOR = (uint32_t)__VECTOR_TABLE + VECT_TAB_OFFSET;
#endif
}
/* ----------------------------------------------------------------------------
-- SystemCoreClockUpdate()
---------------------------------------------------------------------------- */
void SystemCoreClockUpdate(void)
{
SystemCoreClock = 240000000;
}
/*******************************************************************************
* EOF
******************************************************************************/
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