Add KBOOT.
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László Monda
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/*
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* Copyright (c) 2014-2015, Freescale Semiconductor, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* o Redistributions of source code must retain the above copyright notice, this list
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* of conditions and the following disclaimer.
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*
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* o Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* o Neither the name of Freescale Semiconductor, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdint.h>
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#include "system_MK22F25612.h"
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#include "fsl_device_registers.h"
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#include "target_config.h"
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#ifndef DISABLE_WDOG
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#define DISABLE_WDOG 1
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#endif
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/* ----------------------------------------------------------------------------
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-- Core clock
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---------------------------------------------------------------------------- */
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uint32_t SystemCoreClock = kDefaultClock;
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/* ----------------------------------------------------------------------------
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-- SystemInit()
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---------------------------------------------------------------------------- */
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void SystemInit(void)
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{
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#if ((__FPU_PRESENT == 1) && (__FPU_USED == 1))
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SCB->CPACR |= ((3UL << 10 * 2) | (3UL << 11 * 2)); /* set CP10, CP11 Full Access */
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#endif /* ((__FPU_PRESENT == 1) && (__FPU_USED == 1)) */
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#if (DISABLE_WDOG)
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WDOG->UNLOCK = WDOG_UNLOCK_WDOGUNLOCK(0xC520); /* Key 1 */
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/* WDOG->UNLOCK: WDOGUNLOCK=0xD928 */
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WDOG->UNLOCK = WDOG_UNLOCK_WDOGUNLOCK(0xD928); /* Key 2 */
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/* WDOG->STCTRLH:
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* ?=0,DISTESTWDOG=0,BYTESEL=0,TESTSEL=0,TESTWDOG=0,?=0,?=1,WAITEN=1,STOPEN=1,DBGEN=0,ALLOWUPDATE=1,WINEN=0,IRQRSTEN=0,CLKSRC=1,WDOGEN=0
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*/
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WDOG->STCTRLH = WDOG_STCTRLH_BYTESEL(0x00) | WDOG_STCTRLH_WAITEN_MASK | WDOG_STCTRLH_STOPEN_MASK |
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WDOG_STCTRLH_ALLOWUPDATE_MASK | WDOG_STCTRLH_CLKSRC_MASK | 0x0100U;
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#endif /* (DISABLE_WDOG) */
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}
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/*
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** ###################################################################
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** Compilers: ARM Compiler
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** Freescale C/C++ for Embedded ARM
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** GNU C Compiler
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** GNU C Compiler - CodeSourcery Sourcery G++
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** IAR ANSI C/C++ Compiler for ARM
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**
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** Reference manual: K22P121M120SF8RM, Rev. 0.61, January 10, 2014
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** Version: rev. 1.4, 2014-02-10
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**
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** Abstract:
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** Provides a system configuration function and a global variable that
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** contains the system frequency. It configures the device and initializes
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** the oscillator (PLL) that is part of the microcontroller device.
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**
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** Copyright: 2014 Freescale, Inc.
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without modification,
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** are permitted provided that the following conditions are met:
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**
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** o Redistributions of source code must retain the above copyright notice, this list
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** of conditions and the following disclaimer.
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**
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** o Redistributions in binary form must reproduce the above copyright notice, this
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** list of conditions and the following disclaimer in the documentation and/or
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** other materials provided with the distribution.
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**
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** o Neither the name of Freescale Semiconductor, Inc. nor the names of its
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** contributors may be used to endorse or promote products derived from this
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** software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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** ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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** ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**
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** http: www.freescale.com
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** mail: support@freescale.com
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**
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** Revisions:
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** - rev. 1.0 (2013-09-17)
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** Initial version.
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** - rev. 1.1 (2013-10-29)
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** Definition of BITBAND macros updated to support peripherals with 32-bit acces disabled.
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** - rev. 1.2 (2013-12-20)
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** Update according to reference manual rev. 0.6,
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** - rev. 1.3 (2014-02-06)
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** Update according to reference manual rev. 0.61,
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** - rev. 1.4 (2014-02-10)
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** The declaration of clock configurations has been moved to separate header file system_MK22F25612.h
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**
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** ###################################################################
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*/
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/*!
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* @file MK22F25612
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* @version 1.4
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* @date 2014-02-10
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* @brief Device specific configuration file for MK22F25612 (header file)
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*
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* Provides a system configuration function and a global variable that contains
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* the system frequency. It configures the device and initializes the oscillator
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* (PLL) that is part of the microcontroller device.
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*/
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#ifndef _SYSTEM_MK22F25612_H_
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#define _SYSTEM_MK22F25612_H_ /**< Symbol preventing repeated inclusion */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#define DISABLE_WDOG 1
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#ifndef CLOCK_SETUP
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#define CLOCK_SETUP 0
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#endif
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/* Predefined clock setups
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0 ... Default part configuration
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Multipurpose Clock Generator (MCG) in FEI mode.
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Reference clock source for MCG module: Slow internal reference clock
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Core clock = 20.97152MHz
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Bus clock = 20.97152MHz
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1 ... Maximum achievable clock frequency configuration
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Multipurpose Clock Generator (MCG) in PEE mode.
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Reference clock source for MCG module: System oscillator 0 reference clock
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Core clock = 120MHz
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Bus clock = 60MHz
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2 ... Chip internaly clocked, ready for Very Low Power Run mode.
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Multipurpose Clock Generator (MCG) in BLPI mode.
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Reference clock source for MCG module: Fast internal reference clock
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Core clock = 4MHz
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Bus clock = 4MHz
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3 ... Chip externally clocked, ready for Very Low Power Run mode.
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Multipurpose Clock Generator (MCG) in BLPE mode.
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Reference clock source for MCG module: System oscillator 0 reference clock
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Core clock = 4MHz
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Bus clock = 4MHz
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4 ... USB clock setup
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Multipurpose Clock Generator (MCG) in PEE mode.
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Reference clock source for MCG module: System oscillator 0 reference clock
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Core clock = 120MHz
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Bus clock = 60MHz
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*/
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/* Define clock source values */
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#define CPU_XTAL_CLK_HZ 8000000u /* Value of the external crystal or oscillator clock frequency in Hz */
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#define CPU_XTAL32k_CLK_HZ 32768u /* Value of the external 32k crystal or oscillator clock frequency in Hz */
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#define CPU_INT_SLOW_CLK_HZ 32768u /* Value of the slow internal oscillator clock frequency in Hz */
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#define CPU_INT_FAST_CLK_HZ 4000000u /* Value of the fast internal oscillator clock frequency in Hz */
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#define CPU_INT_IRC_CLK_HZ 48000000u /* Value of the 48M internal oscillator clock frequency in Hz */
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#if (CLOCK_SETUP == 0)
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#define DEFAULT_SYSTEM_CLOCK 20971520u /* Default System clock value */
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#elif(CLOCK_SETUP == 1)
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#define DEFAULT_SYSTEM_CLOCK 120000000u /* Default System clock value */
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#elif(CLOCK_SETUP == 2)
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#define DEFAULT_SYSTEM_CLOCK 4000000u /* Default System clock value */
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#elif(CLOCK_SETUP == 3)
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#define DEFAULT_SYSTEM_CLOCK 4000000u /* Default System clock value */
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#elif(CLOCK_SETUP == 4)
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#define DEFAULT_SYSTEM_CLOCK 120000000u /* Default System clock value */
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#endif
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/**
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* @brief System clock frequency (core clock)
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*
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* The system clock frequency supplied to the SysTick timer and the processor
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* core clock. This variable can be used by the user application to setup the
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* SysTick timer or configure other parameters. It may also be used by debugger to
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* query the frequency of the debug timer or configure the trace clock speed
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* SystemCoreClock is initialized with a correct predefined value.
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*/
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extern uint32_t SystemCoreClock;
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/**
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* @brief Setup the microcontroller system.
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*
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* Typically this function configures the oscillator (PLL) that is part of the
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* microcontroller device. For systems with variable clock speed it also updates
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* the variable SystemCoreClock. SystemInit is called from startup_device file.
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*/
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void SystemInit(void);
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/**
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* @brief Updates the SystemCoreClock variable.
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*
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* It must be called whenever the core clock is changed during program
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* execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
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* the current core clock.
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*/
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void SystemCoreClockUpdate(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* #if !defined(_SYSTEM_MK22F25612_H_) */
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