/* Copyright (c) 2012 ARM LIMITED
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   * Redistributions of source code must retain the above copyright notice, this
 *     list of conditions and the following disclaimer.
 *
 *   * 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.
 *
 *   * Neither the name of ARM 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 <stdint.h>
#include <stdbool.h>
#include "mcu/cmsis_nvic.h"
#include "nrf.h"

#ifdef NRF52840_XXAA
#include "system_nrf52840.h"
#endif

#ifdef NRF52
#include "system_nrf52.h"
#endif

#ifdef NRF52810_XXAA
#include "system_nrf52810.h"
#endif

#ifdef NRF52811_XXAA
#include "system_nrf52811.h"
#endif

#include "system_nrf52_approtect.h"
#include "syscfg/syscfg.h"

/*lint ++flb "Enter library region" */

#define __SYSTEM_CLOCK_64M      (64000000UL)

#ifdef NRF52840_XXAA
static bool errata_36(void);
static bool errata_98(void);
static bool errata_103(void);
static bool errata_115(void);
static bool errata_120(void);
static bool errata_121(void);
#endif

#ifdef NRF52
static bool errata_16(void);
static bool errata_31(void);
static bool errata_32(void);
static bool errata_36(void);
static bool errata_37(void);
static bool errata_57(void);
static bool errata_66(void);
static bool errata_108(void);
#endif

#ifdef NRF52810_XXAA
static bool errata_31(void);
static bool errata_36(void);
static bool errata_66(void);
static bool errata_103(void);
static bool errata_108(void);
static bool errata_136(void);
#endif

#ifdef NRF52811_XXAA
static bool errata_31(void);
static bool errata_36(void);
static bool errata_66(void);
static bool errata_108(void);
static bool errata_136(void);
#endif

#if defined ( __CC_ARM )
    uint32_t SystemCoreClock __attribute__((used)) = __SYSTEM_CLOCK_64M;
#elif defined ( __ICCARM__ )
    __root uint32_t SystemCoreClock = __SYSTEM_CLOCK_64M;
#elif defined ( __GNUC__ )
    uint32_t SystemCoreClock __attribute__((used)) = __SYSTEM_CLOCK_64M;
#endif

#if MYNEWT_VAL_CHOICE(MCU_ACCESS_PORT_PROTECTION, disable)
/*
 * When target requests debugger to be enabled automatically additional check
 * has to be berformed to make sure that approtect wants 0xFF or 0x5A to
 * enable debugger. Following lines define AUTO_PROTECT_DISABLE which evaluates
 * to true if 0x5A is applicable for current chip.
 */
#define NRF_MINIMUM_VARIANT(a, b) ((uint16_t)NRF_FICR->INFO.VARIANT >= (((a) << 8) | b))
#if defined (NRF52805_XXAA)
#define AUTO_APPROTECT_DISABLE NRF_MINIMUM_VARIANT('B', '0')
#elif defined(NRF52810_XXAA)
#define AUTO_APPROTECT_DISABLE NRF_MINIMUM_VARIANT('E', '0')
#elif defined(NRF52811_XXAA)
#define AUTO_APPROTECT_DISABLE NRF_MINIMUM_VARIANT('B', '0')
#elif defined(NRF52832_XXAA) || defined(NRF52832_XXAB)
#define AUTO_APPROTECT_DISABLE NRF_MINIMUM_VARIANT('G', '0')
#elif defined (NRF52833_XXAA)
#define AUTO_APPROTECT_DISABLE NRF_MINIMUM_VARIANT('B', '0')
#elif defined(NRF52840_XXAA)
#define AUTO_APPROTECT_DISABLE NRF_MINIMUM_VARIANT('F', '0')
#else
#define AUTO_APPROTECT_DISABLE 0
#endif
#else
#define AUTO_APPROTECT_DISABLE 0
#endif

void SystemCoreClockUpdate(void)
{
    SystemCoreClock = __SYSTEM_CLOCK_64M;
}

void SystemInit(void)
{
#ifdef NRF52
    /* Workaround for Errata 16 "System: RAM may be corrupt on wakeup from CPU IDLE" found at the Errata document
       for your device located at https://infocenter.nordicsemi.com/ */
    if (errata_16()){
        *(volatile uint32_t *)0x4007C074 = 3131961357ul;
    }

    /* Workaround for Errata 31 "CLOCK: Calibration values are not correctly loaded from FICR at reset" found at the Errata document
       for your device located at https://infocenter.nordicsemi.com/ */
    if (errata_31()){
        *(volatile uint32_t *)0x4000053C = ((*(volatile uint32_t *)0x10000244) & 0x0000E000) >> 13;
    }

    /* Workaround for Errata 32 "DIF: Debug session automatically enables TracePort pins" found at the Errata document
       for your device located at https://infocenter.nordicsemi.com/ */
    if (errata_32()){
        CoreDebug->DEMCR &= ~CoreDebug_DEMCR_TRCENA_Msk;
    }

    /* Workaround for Errata 36 "CLOCK: Some registers are not reset when expected" found at the Errata document
       for your device located at https://infocenter.nordicsemi.com/  */
    if (errata_36()){
        NRF_CLOCK->EVENTS_DONE = 0;
        NRF_CLOCK->EVENTS_CTTO = 0;
        NRF_CLOCK->CTIV = 0;
    }

    /* Workaround for Errata 37 "RADIO: Encryption engine is slow by default" found at the Errata document
       for your device located at https://infocenter.nordicsemi.com/  */
    if (errata_37()){
        *(volatile uint32_t *)0x400005A0 = 0x3;
    }

    /* Workaround for Errata 57 "NFCT: NFC Modulation amplitude" found at the Errata document
       for your device located at https://infocenter.nordicsemi.com/  */
    if (errata_57()){
        *(volatile uint32_t *)0x40005610 = 0x00000005;
        *(volatile uint32_t *)0x40005688 = 0x00000001;
        *(volatile uint32_t *)0x40005618 = 0x00000000;
        *(volatile uint32_t *)0x40005614 = 0x0000003F;
    }

    /* Workaround for Errata 66 "TEMP: Linearity specification not met with default settings" found at the Errata document
       for your device located at https://infocenter.nordicsemi.com/  */
    if (errata_66()){
        NRF_TEMP->A0 = NRF_FICR->TEMP.A0;
        NRF_TEMP->A1 = NRF_FICR->TEMP.A1;
        NRF_TEMP->A2 = NRF_FICR->TEMP.A2;
        NRF_TEMP->A3 = NRF_FICR->TEMP.A3;
        NRF_TEMP->A4 = NRF_FICR->TEMP.A4;
        NRF_TEMP->A5 = NRF_FICR->TEMP.A5;
        NRF_TEMP->B0 = NRF_FICR->TEMP.B0;
        NRF_TEMP->B1 = NRF_FICR->TEMP.B1;
        NRF_TEMP->B2 = NRF_FICR->TEMP.B2;
        NRF_TEMP->B3 = NRF_FICR->TEMP.B3;
        NRF_TEMP->B4 = NRF_FICR->TEMP.B4;
        NRF_TEMP->B5 = NRF_FICR->TEMP.B5;
        NRF_TEMP->T0 = NRF_FICR->TEMP.T0;
        NRF_TEMP->T1 = NRF_FICR->TEMP.T1;
        NRF_TEMP->T2 = NRF_FICR->TEMP.T2;
        NRF_TEMP->T3 = NRF_FICR->TEMP.T3;
        NRF_TEMP->T4 = NRF_FICR->TEMP.T4;
    }

    /* Workaround for Errata 108 "RAM: RAM content cannot be trusted upon waking up from System ON Idle or System OFF mode" found at the Errata document
       for your device located at https://infocenter.nordicsemi.com/  */
    if (errata_108()){
        *(volatile uint32_t *)0x40000EE4 = *(volatile uint32_t *)0x10000258 & 0x0000004F;
    }

    /* Enable the FPU if the compiler used floating point unit instructions. __FPU_USED is a MACRO defined by the
     * compiler. Since the FPU consumes energy, remember to disable FPU use in the compiler if floating point unit
     * operations are not used in your code. */
    #if (__FPU_USED == 1)
        SCB->CPACR |= (3UL << 20) | (3UL << 22);
        __DSB();
        __ISB();
    #endif

    /* Configure NFCT pins as GPIOs if NFCT is not to be used in your code. If CONFIG_NFCT_PINS_AS_GPIOS is not defined,
       two GPIOs (see Product Specification to see which ones) will be reserved for NFC and will not be available as
       normal GPIOs. */
    #if defined (CONFIG_NFCT_PINS_AS_GPIOS)
        if ((NRF_UICR->NFCPINS & UICR_NFCPINS_PROTECT_Msk) == (UICR_NFCPINS_PROTECT_NFC << UICR_NFCPINS_PROTECT_Pos)){
            NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NRF_UICR->NFCPINS &= ~UICR_NFCPINS_PROTECT_Msk;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NVIC_SystemReset();
        }
    #endif

    /* Configure GPIO pads as pPin Reset pin if Pin Reset capabilities desired. If CONFIG_GPIO_AS_PINRESET is not
      defined, pin reset will not be available. One GPIO (see Product Specification to see which one) will then be
      reserved for PinReset and not available as normal GPIO. */
    #if defined (CONFIG_GPIO_AS_PINRESET)
        if (((NRF_UICR->PSELRESET[0] & UICR_PSELRESET_CONNECT_Msk) != (UICR_PSELRESET_CONNECT_Connected << UICR_PSELRESET_CONNECT_Pos)) ||
            ((NRF_UICR->PSELRESET[1] & UICR_PSELRESET_CONNECT_Msk) != (UICR_PSELRESET_CONNECT_Connected << UICR_PSELRESET_CONNECT_Pos))){
            NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NRF_UICR->PSELRESET[0] = 21;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NRF_UICR->PSELRESET[1] = 21;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NVIC_SystemReset();
        }
    #endif

    /* Enable SWO trace functionality. If ENABLE_SWO is not defined, SWO pin will be used as GPIO (see Product
       Specification to see which one). */
    #if defined (ENABLE_SWO)
        CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
        NRF_CLOCK->TRACECONFIG |= CLOCK_TRACECONFIG_TRACEMUX_Serial << CLOCK_TRACECONFIG_TRACEMUX_Pos;
        NRF_P0->PIN_CNF[18] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
    #endif

    /* Enable Trace functionality. If ENABLE_TRACE is not defined, TRACE pins will be used as GPIOs (see Product
       Specification to see which ones). */
    #if defined (ENABLE_TRACE)
        CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
        NRF_CLOCK->TRACECONFIG |= CLOCK_TRACECONFIG_TRACEMUX_Parallel << CLOCK_TRACECONFIG_TRACEMUX_Pos;
        NRF_P0->PIN_CNF[14] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
        NRF_P0->PIN_CNF[15] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
        NRF_P0->PIN_CNF[16] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
        NRF_P0->PIN_CNF[18] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
        NRF_P0->PIN_CNF[20] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
    #endif
#endif

#ifdef NRF52810_XXAA
    /* Workaround for Errata 31 "CLOCK: Calibration values are not correctly loaded from FICR at reset" found at the Errata document
       for your device located at https://www.nordicsemi.com/DocLib */
    if (errata_31()){
        *(volatile uint32_t *)0x4000053C = ((*(volatile uint32_t *)0x10000244) & 0x0000E000) >> 13;
    }

    /* Workaround for Errata 36 "CLOCK: Some registers are not reset when expected" found at the Errata document
       for your device located at https://www.nordicsemi.com/DocLib  */
    if (errata_36()){
        NRF_CLOCK->EVENTS_DONE = 0;
        NRF_CLOCK->EVENTS_CTTO = 0;
        NRF_CLOCK->CTIV = 0;
    }

    /* Workaround for Errata 66 "TEMP: Linearity specification not met with default settings" found at the Errata document
       for your device located at https://www.nordicsemi.com/DocLib  */
    if (errata_66()){
        NRF_TEMP->A0 = NRF_FICR->TEMP.A0;
        NRF_TEMP->A1 = NRF_FICR->TEMP.A1;
        NRF_TEMP->A2 = NRF_FICR->TEMP.A2;
        NRF_TEMP->A3 = NRF_FICR->TEMP.A3;
        NRF_TEMP->A4 = NRF_FICR->TEMP.A4;
        NRF_TEMP->A5 = NRF_FICR->TEMP.A5;
        NRF_TEMP->B0 = NRF_FICR->TEMP.B0;
        NRF_TEMP->B1 = NRF_FICR->TEMP.B1;
        NRF_TEMP->B2 = NRF_FICR->TEMP.B2;
        NRF_TEMP->B3 = NRF_FICR->TEMP.B3;
        NRF_TEMP->B4 = NRF_FICR->TEMP.B4;
        NRF_TEMP->B5 = NRF_FICR->TEMP.B5;
        NRF_TEMP->T0 = NRF_FICR->TEMP.T0;
        NRF_TEMP->T1 = NRF_FICR->TEMP.T1;
        NRF_TEMP->T2 = NRF_FICR->TEMP.T2;
        NRF_TEMP->T3 = NRF_FICR->TEMP.T3;
        NRF_TEMP->T4 = NRF_FICR->TEMP.T4;
    }

    /* Workaround for Errata 103 "CCM: Wrong reset value of CCM MAXPACKETSIZE" found at the Errata document
       for your device located at https://www.nordicsemi.com/DocLib  */
    if (errata_103()){
        NRF_CCM->MAXPACKETSIZE = 0xFBul;
    }

    /* Workaround for Errata 108 "RAM: RAM content cannot be trusted upon waking up from System ON Idle or System OFF mode" found at the Errata document
       for your device located at https://www.nordicsemi.com/DocLib  */
    if (errata_108()){
        *(volatile uint32_t *)0x40000EE4 = *(volatile uint32_t *)0x10000258 & 0x0000004F;
    }

    /* Workaround for Errata 136 "System: Bits in RESETREAS are set when they should not be" found at the Errata document
       for your device located at https://www.nordicsemi.com/DocLib  */
    if (errata_136()){
        if (NRF_POWER->RESETREAS & POWER_RESETREAS_RESETPIN_Msk){
            NRF_POWER->RESETREAS =  ~POWER_RESETREAS_RESETPIN_Msk;
        }
    }

    /* Configure GPIO pads as pPin Reset pin if Pin Reset capabilities desired. If CONFIG_GPIO_AS_PINRESET is not
      defined, pin reset will not be available. One GPIO (see Product Specification to see which one) will then be
      reserved for PinReset and not available as normal GPIO. */
    #if defined (CONFIG_GPIO_AS_PINRESET)
        if (((NRF_UICR->PSELRESET[0] & UICR_PSELRESET_CONNECT_Msk) != (UICR_PSELRESET_CONNECT_Connected << UICR_PSELRESET_CONNECT_Pos)) ||
            ((NRF_UICR->PSELRESET[1] & UICR_PSELRESET_CONNECT_Msk) != (UICR_PSELRESET_CONNECT_Connected << UICR_PSELRESET_CONNECT_Pos))){
            NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NRF_UICR->PSELRESET[0] = 21;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NRF_UICR->PSELRESET[1] = 21;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NVIC_SystemReset();
        }
    #endif
#endif

#ifdef NRF52811_XXAA
    /* Workaround for Errata 31 "CLOCK: Calibration values are not correctly loaded from FICR at reset" found at the Errata document
       for your device located at https://www.nordicsemi.com/DocLib */
    if (errata_31()){
        *(volatile uint32_t *)0x4000053C = ((*(volatile uint32_t *)0x10000244) & 0x0000E000) >> 13;
    }

    /* Workaround for Errata 36 "CLOCK: Some registers are not reset when expected" found at the Errata document
       for your device located at https://www.nordicsemi.com/DocLib  */
    if (errata_36()){
        NRF_CLOCK->EVENTS_DONE = 0;
        NRF_CLOCK->EVENTS_CTTO = 0;
        NRF_CLOCK->CTIV = 0;
    }

    /* Workaround for Errata 66 "TEMP: Linearity specification not met with default settings" found at the Errata document
       for your device located at https://www.nordicsemi.com/DocLib  */
    if (errata_66()){
        NRF_TEMP->A0 = NRF_FICR->TEMP.A0;
        NRF_TEMP->A1 = NRF_FICR->TEMP.A1;
        NRF_TEMP->A2 = NRF_FICR->TEMP.A2;
        NRF_TEMP->A3 = NRF_FICR->TEMP.A3;
        NRF_TEMP->A4 = NRF_FICR->TEMP.A4;
        NRF_TEMP->A5 = NRF_FICR->TEMP.A5;
        NRF_TEMP->B0 = NRF_FICR->TEMP.B0;
        NRF_TEMP->B1 = NRF_FICR->TEMP.B1;
        NRF_TEMP->B2 = NRF_FICR->TEMP.B2;
        NRF_TEMP->B3 = NRF_FICR->TEMP.B3;
        NRF_TEMP->B4 = NRF_FICR->TEMP.B4;
        NRF_TEMP->B5 = NRF_FICR->TEMP.B5;
        NRF_TEMP->T0 = NRF_FICR->TEMP.T0;
        NRF_TEMP->T1 = NRF_FICR->TEMP.T1;
        NRF_TEMP->T2 = NRF_FICR->TEMP.T2;
        NRF_TEMP->T3 = NRF_FICR->TEMP.T3;
        NRF_TEMP->T4 = NRF_FICR->TEMP.T4;
    }

    /* Workaround for Errata 108 "RAM: RAM content cannot be trusted upon waking up from System ON Idle or System OFF mode" found at the Errata document
       for your device located at https://www.nordicsemi.com/DocLib  */
    if (errata_108()){
        *(volatile uint32_t *)0x40000EE4 = *(volatile uint32_t *)0x10000258 & 0x0000004F;
    }

    /* Workaround for Errata 136 "System: Bits in RESETREAS are set when they should not be" found at the Errata document
       for your device located at https://www.nordicsemi.com/DocLib  */
    if (errata_136()){
        if (NRF_POWER->RESETREAS & POWER_RESETREAS_RESETPIN_Msk){
            NRF_POWER->RESETREAS =  ~POWER_RESETREAS_RESETPIN_Msk;
        }
    }

    /* Configure GPIO pads as pPin Reset pin if Pin Reset capabilities desired. If CONFIG_GPIO_AS_PINRESET is not
      defined, pin reset will not be available. One GPIO (see Product Specification to see which one) will then be
      reserved for PinReset and not available as normal GPIO. */
    #if defined (CONFIG_GPIO_AS_PINRESET)
        #define RESET_PIN 21
        if (((NRF_UICR->PSELRESET[0] & UICR_PSELRESET_CONNECT_Msk) != (UICR_PSELRESET_CONNECT_Connected << UICR_PSELRESET_CONNECT_Pos)) ||
            ((NRF_UICR->PSELRESET[1] & UICR_PSELRESET_CONNECT_Msk) != (UICR_PSELRESET_CONNECT_Connected << UICR_PSELRESET_CONNECT_Pos))){
            NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NRF_UICR->PSELRESET[0] = RESET_PIN;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NRF_UICR->PSELRESET[1] = RESET_PIN;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
            NVIC_SystemReset();
        }
    #endif

#endif

#ifdef NRF52840_XXAA
        /* Workaround for Errata 36 "CLOCK: Some registers are not reset when expected" found at the Errata document
           for your device located at https://infocenter.nordicsemi.com/  */
        if (errata_36()){
            NRF_CLOCK->EVENTS_DONE = 0;
            NRF_CLOCK->EVENTS_CTTO = 0;
            NRF_CLOCK->CTIV = 0;
        }

        /* Workaround for Errata 98 "NFCT: Not able to communicate with the peer" found at the Errata document
           for your device located at https://infocenter.nordicsemi.com/  */
        if (errata_98()){
            *(volatile uint32_t *)0x4000568Cul = 0x00038148ul;
        }

        /* Workaround for Errata 103 "CCM: Wrong reset value of CCM MAXPACKETSIZE" found at the Errata document
           for your device located at https://infocenter.nordicsemi.com/  */
        if (errata_103()){
            NRF_CCM->MAXPACKETSIZE = 0xFBul;
        }

        /* Workaround for Errata 115 "RAM: RAM content cannot be trusted upon waking up from System ON Idle or System OFF mode" found at the Errata document
           for your device located at https://infocenter.nordicsemi.com/  */
        if (errata_115()){
            *(volatile uint32_t *)0x40000EE4 = (*(volatile uint32_t *)0x40000EE4 & 0xFFFFFFF0) | (*(uint32_t *)0x10000258 & 0x0000000F);
        }

        /* Workaround for Errata 120 "QSPI: Data read or written is corrupted" found at the Errata document
           for your device located at https://infocenter.nordicsemi.com/  */
        if (errata_120()){
            *(volatile uint32_t *)0x40029640ul = 0x200ul;
        }

        /* Workaround for Errata 120 "QSPI: Second read and long read commands fail" found at the Errata document
           for your device located at https://infocenter.nordicsemi.com/  */
        if (errata_121()){
            *(volatile uint32_t *)0x40029600ul = 0x00040400ul;
        }

        /* Enable the FPU if the compiler used floating point unit instructions. __FPU_USED is a MACRO defined by the
         * compiler. Since the FPU consumes energy, remember to disable FPU use in the compiler if floating point unit
         * operations are not used in your code. */
        #if (__FPU_USED == 1)
            SCB->CPACR |= (3UL << 20) | (3UL << 22);
            __DSB();
            __ISB();
        #endif

        /* Configure NFCT pins as GPIOs if NFCT is not to be used in your code. If CONFIG_NFCT_PINS_AS_GPIOS is not defined,
           two GPIOs (see Product Specification to see which ones) will be reserved for NFC and will not be available as
           normal GPIOs. */
        #if defined (CONFIG_NFCT_PINS_AS_GPIOS)
            if ((NRF_UICR->NFCPINS & UICR_NFCPINS_PROTECT_Msk) == (UICR_NFCPINS_PROTECT_NFC << UICR_NFCPINS_PROTECT_Pos)){
                NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
                while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
                NRF_UICR->NFCPINS &= ~UICR_NFCPINS_PROTECT_Msk;
                while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
                NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
                while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
                NVIC_SystemReset();
            }
        #endif

        /* Configure GPIO pads as pPin Reset pin if Pin Reset capabilities desired. If CONFIG_GPIO_AS_PINRESET is not
          defined, pin reset will not be available. One GPIO (see Product Specification to see which one) will then be
          reserved for PinReset and not available as normal GPIO. */
        #if defined (CONFIG_GPIO_AS_PINRESET)
            if (((NRF_UICR->PSELRESET[0] & UICR_PSELRESET_CONNECT_Msk) != (UICR_PSELRESET_CONNECT_Connected << UICR_PSELRESET_CONNECT_Pos)) ||
                ((NRF_UICR->PSELRESET[1] & UICR_PSELRESET_CONNECT_Msk) != (UICR_PSELRESET_CONNECT_Connected << UICR_PSELRESET_CONNECT_Pos))){
                NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
                while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
                NRF_UICR->PSELRESET[0] = 18;
                while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
                NRF_UICR->PSELRESET[1] = 18;
                while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
                NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
                while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
                NVIC_SystemReset();
            }
        #endif

        /* Enable SWO trace functionality. If ENABLE_SWO is not defined, SWO pin will be used as GPIO (see Product
           Specification to see which one). */
        #if defined (ENABLE_SWO)
            CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
            NRF_CLOCK->TRACECONFIG |= CLOCK_TRACECONFIG_TRACEMUX_Serial << CLOCK_TRACECONFIG_TRACEMUX_Pos;
            NRF_P1->PIN_CNF[0] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
        #endif

        /* Enable Trace functionality. If ENABLE_TRACE is not defined, TRACE pins will be used as GPIOs (see Product
           Specification to see which ones). */
        #if defined (ENABLE_TRACE)
            CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
            NRF_CLOCK->TRACECONFIG |= CLOCK_TRACECONFIG_TRACEMUX_Parallel << CLOCK_TRACECONFIG_TRACEMUX_Pos;
            NRF_P0->PIN_CNF[7]  = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
            NRF_P1->PIN_CNF[0]  = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
            NRF_P0->PIN_CNF[12] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
            NRF_P0->PIN_CNF[11] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
            NRF_P1->PIN_CNF[9]  = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
        #endif
#endif
    if (MYNEWT_VAL_CHOICE(MCU_ACCESS_PORT_PROTECTION, disable) && AUTO_APPROTECT_DISABLE) {
        NRF_APPROTECT->DISABLE = APPROTECT_DISABLE_DISABLE_SwDisable;
        NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Msk;
        NRF_UICR->APPROTECT = APPROTECT_DISABLE_DISABLE_SwDisable;
        while (!NRF_NVMC->READY) ;
        NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren;
    } else if (MYNEWT_VAL_CHOICE(MCU_ACCESS_PORT_PROTECTION, enable) && NRF_UICR->APPROTECT != 0) {
        NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Msk;
        NRF_UICR->APPROTECT = 0;
        while (!NRF_NVMC->READY) ;
        NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren;
    }
    nrf52_handle_approtect();

    SystemCoreClockUpdate();
}

#ifdef NRF52
static bool errata_16(void)
{
    if ((((*(uint32_t *)0xF0000FE0) & 0x000000FF) == 0x6) && (((*(uint32_t *)0xF0000FE4) & 0x0000000F) == 0x0)){
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x30){
            return true;
        }
    }

    return false;
}

static bool errata_31(void)
{
    if ((((*(uint32_t *)0xF0000FE0) & 0x000000FF) == 0x6) && (((*(uint32_t *)0xF0000FE4) & 0x0000000F) == 0x0)){
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x30){
            return true;
        }
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x40){
            return true;
        }
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x50){
            return true;
        }
    }

    return false;
}

static bool errata_32(void)
{
    if ((((*(uint32_t *)0xF0000FE0) & 0x000000FF) == 0x6) && (((*(uint32_t *)0xF0000FE4) & 0x0000000F) == 0x0)){
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x30){
            return true;
        }
    }

    return false;
}

static bool errata_36(void)
{
    if ((((*(uint32_t *)0xF0000FE0) & 0x000000FF) == 0x6) && (((*(uint32_t *)0xF0000FE4) & 0x0000000F) == 0x0)){
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x30){
            return true;
        }
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x40){
            return true;
        }
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x50){
            return true;
        }
    }

    return false;
}

static bool errata_37(void)
{
    if ((((*(uint32_t *)0xF0000FE0) & 0x000000FF) == 0x6) && (((*(uint32_t *)0xF0000FE4) & 0x0000000F) == 0x0)){
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x30){
            return true;
        }
    }

    return false;
}

static bool errata_57(void)
{
    if ((((*(uint32_t *)0xF0000FE0) & 0x000000FF) == 0x6) && (((*(uint32_t *)0xF0000FE4) & 0x0000000F) == 0x0)){
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x30){
            return true;
        }
    }

    return false;
}

static bool errata_66(void)
{
    if ((((*(uint32_t *)0xF0000FE0) & 0x000000FF) == 0x6) && (((*(uint32_t *)0xF0000FE4) & 0x0000000F) == 0x0)){
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x50){
            return true;
        }
    }

    return false;
}


static bool errata_108(void)
{
    if ((((*(uint32_t *)0xF0000FE0) & 0x000000FF) == 0x6) && (((*(uint32_t *)0xF0000FE4) & 0x0000000F) == 0x0)){
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x30){
            return true;
        }
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x40){
            return true;
        }
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x50){
            return true;
        }
    }

    return false;
}
#endif

#ifdef NRF52810_XXAA
static bool errata_31(void)
{
    if (*(uint32_t *)0x10000130ul == 0xAul){
        if (*(uint32_t *)0x10000134ul == 0x0ul){
            return true;
        }
        if (*(uint32_t *)0x10000134ul == 0x1ul){
            return true;
        }
    }

    /* Apply by default for unknown devices until errata is confirmed fixed. */
    return true;
}

static bool errata_36(void)
{
    if (*(uint32_t *)0x10000130ul == 0xAul){
        if (*(uint32_t *)0x10000134ul == 0x0ul){
            return true;
        }
        if (*(uint32_t *)0x10000134ul == 0x1ul){
            return true;
        }
    }

    /* Apply by default for unknown devices until errata is confirmed fixed. */
    return true;
}

static bool errata_66(void)
{
    if (*(uint32_t *)0x10000130ul == 0xAul){
        if (*(uint32_t *)0x10000134ul == 0x0ul){
            return true;
        }
        if (*(uint32_t *)0x10000134ul == 0x1ul){
            return true;
        }
    }

    /* Apply by default for unknown devices until errata is confirmed fixed. */
    return true;
}

static bool errata_103(void)
{
    if (*(uint32_t *)0x10000130ul == 0xAul){
        if (*(uint32_t *)0x10000134ul == 0x0ul){
            return true;
        }
    }

    return false;
}

static bool errata_108(void)
{
    if ((((*(uint32_t *)0xF0000FE0) & 0x000000FF) == 0x6) && (((*(uint32_t *)0xF0000FE4) & 0x0000000F) == 0x0)){
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x30){
            return true;
        }
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x40){
            return true;
        }
        if (((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x50){
            return true;
        }
    }

    return false;
}

static bool errata_136(void)
{
    if (*(uint32_t *)0x10000130ul == 0xAul){
        if (*(uint32_t *)0x10000134ul == 0x0ul){
            return true;
        }
        if (*(uint32_t *)0x10000134ul == 0x1ul){
            return true;
        }
    }

    /* Apply by default for unknown devices until errata is confirmed fixed. */
    return true;
}

#endif

#ifdef NRF52811_XXAA
static bool errata_31(void)
{
    if (*(uint32_t *)0x10000130ul == 0xEul){
        if (*(uint32_t *)0x10000134ul == 0x0ul){
            return true;
        }
    }

    /* Apply by default for unknown devices until errata is confirmed fixed. */
    return true;
}

static bool errata_36(void)
{
    if (*(uint32_t *)0x10000130ul == 0xEul){
        if (*(uint32_t *)0x10000134ul == 0x0ul){
            return true;
        }
    }

    /* Apply by default for unknown devices until errata is confirmed fixed. */
    return true;
}

static bool errata_66(void)
{
    if (*(uint32_t *)0x10000130ul == 0xEul){
        if (*(uint32_t *)0x10000134ul == 0x0ul){
            return true;
        }
    }

    /* Apply by default for unknown devices until errata is confirmed fixed. */
    return true;
}

static bool errata_108(void)
{
    if (*(uint32_t *)0x10000130ul == 0xEul){
        if (*(uint32_t *)0x10000134ul == 0x0ul){
            return true;
        }
    }

    /* Apply by default for unknown devices until errata is confirmed fixed. */
    return true;
}

static bool errata_136(void)
{
    if (*(uint32_t *)0x10000130ul == 0xEul){
        if (*(uint32_t *)0x10000134ul == 0x0ul){
            return true;
        }
    }

    /* Apply by default for unknown devices until errata is confirmed fixed. */
    return true;
}

#endif

#ifdef NRF52840_XXAA
static bool errata_36(void)
{
	if ((*(uint32_t *)0x10000130ul == 0x8ul) &&
			(*(uint32_t *)0x10000134ul == 0x0ul)) {
		return true;
	}

	return false;
}


static bool errata_98(void)
{
	if ((*(uint32_t *)0x10000130ul == 0x8ul) &&
			(*(uint32_t *)0x10000134ul == 0x0ul)) {
		return true;
	}

	return false;
}


static bool errata_103(void)
{
	if ((*(uint32_t *)0x10000130ul == 0x8ul) &&
			(*(uint32_t *)0x10000134ul == 0x0ul)) {
		return true;
	}

	return false;
}


static bool errata_115(void)
{
	if ((*(uint32_t *)0x10000130ul == 0x8ul) &&
			(*(uint32_t *)0x10000134ul == 0x0ul)) {
		return true;
	}

	return false;
}


static bool errata_120(void)
{
	if ((*(uint32_t *)0x10000130ul == 0x8ul) &&
			(*(uint32_t *)0x10000134ul == 0x0ul)) {
		return true;
	}

	return false;
}

static bool errata_121(void)
{
	if ((*(uint32_t *)0x10000130ul == 0x8ul) &&
			(*(uint32_t *)0x10000134ul == 0x0ul)) {
		return true;
	}

	return false;
}
#endif

/*lint --flb "Leave library region" */
