text: /**
   * Copyright (c) 2016 - 2019, Nordic Semiconductor ASA
   *
   * 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, except as embedded into a Nordic
   *    Semiconductor ASA integrated circuit in a product or a software update for
   *    such product, 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.
   *
   * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
   *    contributors may be used to endorse or promote products derived from this
   *    software without specific prior written permission.
   *
   * 4. This software, with or without modification, must only be used with a
   *    Nordic Semiconductor ASA integrated circuit.
   *
   * 5. Any software provided in binary form under this license must not be reverse
   *    engineered, decompiled, modified and/or disassembled.
   *
   * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
   * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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 "nrf_bootloader_info.h"
  #include "nrf_dfu_types.h"
  #include "nrf_nvmc.h"
  
  #define UICR_BOOTLOADER_ADDR 0x10001014
  
  /** @brief  This variable ensures that the linker script will write the bootloader start address
   *          to the UICR register. This value will be written in the HEX file and thus written to
   *          UICR when the bootloader is flashed into the chip.
   */
  #if defined (__CC_ARM )
      #pragma push
      #pragma diag_suppress 1296
      uint32_t  m_uicr_bootloader_start_address __attribute__((at(UICR_BOOTLOADER_ADDR)))
                                                      = BOOTLOADER_START_ADDR;
      #pragma pop
  #elif defined ( __GNUC__ ) || defined ( __SES_ARM )
      volatile uint32_t m_uicr_bootloader_start_address  __attribute__ ((section(".uicr_bootloader_start_address")))
                                              = BOOTLOADER_START_ADDR;
  #elif defined ( __ICCARM__ )
      __root    const uint32_t m_uicr_bootloader_start_address @ UICR_BOOTLOADER_ADDR
                                              = BOOTLOADER_START_ADDR;
  #endif
  
  void nrf_bootloader_mbr_addrs_populate(void)
  {
      if (*(const uint32_t *)MBR_BOOTLOADER_ADDR == 0xFFFFFFFF)
      {
          nrf_nvmc_write_word(MBR_BOOTLOADER_ADDR, BOOTLOADER_START_ADDR);
      }
      if (*(const uint32_t *)MBR_PARAM_PAGE_ADDR == 0xFFFFFFFF)
      {
          nrf_nvmc_write_word(MBR_PARAM_PAGE_ADDR, NRF_MBR_PARAMS_PAGE_ADDRESS);
      }
  }
  
  
  void nrf_bootloader_debug_port_disable(void)
  {
      if (NRF_UICR->APPROTECT != 0x0)
      {
          nrf_nvmc_write_word((uint32_t)&NRF_UICR->APPROTECT, 0x0);
          NVIC_SystemReset();
      }
  #if (!defined (NRF52810_XXAA) && !defined (NRF52811_XXAA) && !defined (NRF52832_XXAA) && !defined (NRF52832_XXAB))
      if (NRF_UICR->DEBUGCTRL != 0x0)
      {
          nrf_nvmc_write_word((uint32_t)&NRF_UICR->DEBUGCTRL, 0x0);
          NVIC_SystemReset();
      }
  #endif
  }
  