nrf: Extend plat_test.c to implement functions needed for psa-arch-tests

Add logging, timer, and memory functionality.

This adds functions that are not used in the TF-M code, but are called
from the psa-arch-tests nrf platform.

Change-Id: I1e149356b426302dbc125d0db9e7add4d331bfd7
Signed-off-by: Øyvind Rønningstad <oyvind.ronningstad@nordicsemi.no>
diff --git a/platform/ext/target/nordic_nrf/common/core/CMakeLists.txt b/platform/ext/target/nordic_nrf/common/core/CMakeLists.txt
index eb2fd0b..91e1771 100644
--- a/platform/ext/target/nordic_nrf/common/core/CMakeLists.txt
+++ b/platform/ext/target/nordic_nrf/common/core/CMakeLists.txt
@@ -66,7 +66,7 @@
         native_drivers/spu.c
         spm_hal.c
         tfm_hal_isolation.c
-        $<$<BOOL:TFM_PARTITION_PLATFORM>:${CMAKE_CURRENT_SOURCE_DIR}/plat_test.c>
+        plat_test.c
 )
 
 target_compile_options(platform_s
@@ -81,6 +81,7 @@
         cmsis_drivers/Driver_USART.c
         nrfx/drivers/src/nrfx_uarte.c
         nrfx_glue.c
+        plat_test.c
 )
 
 target_include_directories(platform_ns
@@ -90,6 +91,8 @@
         nrfx/mdk
         nrfx/drivers/include
         ${PLATFORM_DIR}/..
+    PRIVATE
+        ${PLATFORM_DIR}/../interface/include
 )
 
 #========================= Platform BL2 =======================================#
diff --git a/platform/ext/target/nordic_nrf/common/core/nrfx/hal/nrf_power.h b/platform/ext/target/nordic_nrf/common/core/nrfx/hal/nrf_power.h
new file mode 100644
index 0000000..5fd6433
--- /dev/null
+++ b/platform/ext/target/nordic_nrf/common/core/nrfx/hal/nrf_power.h
@@ -0,0 +1,1202 @@
+/*
+ * Copyright (c) 2017 - 2020, 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 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 the copyright holder 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.
+ */
+
+#ifndef NRF_POWER_H__
+#define NRF_POWER_H__
+
+#include <nrfx.h>
+#include <nrf_erratas.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup nrf_power_hal POWER HAL
+ * @{
+ * @ingroup nrf_power
+ * @brief   Hardware access layer for managing the POWER peripheral.
+ */
+
+#if defined(POWER_INTENSET_SLEEPENTER_Msk) || defined(__NRFX_DOXYGEN__)
+/** @brief Symbol indicating whether sleep events are present. */
+#define NRF_POWER_HAS_SLEEPEVT 1
+#else
+#define NRF_POWER_HAS_SLEEPEVT 0
+#endif
+
+#if defined(POWER_USBREGSTATUS_VBUSDETECT_Msk) || defined(__NRFX_DOXYGEN__)
+/** @brief Symbol indicating whether the POWER peripheral controls the USB regulator. */
+#define NRF_POWER_HAS_USBREG 1
+#else
+#define NRF_POWER_HAS_USBREG 0
+#endif
+
+#if defined(POWER_DCDCEN0_DCDCEN_Msk) || defined(__NRFX_DOXYGEN__)
+/** @brief Symbol indicating whether DCDCEN for REG0 is present. */
+#define NRF_POWER_HAS_DCDCEN_VDDH 1
+#else
+#define NRF_POWER_HAS_DCDCEN_VDDH 0
+#endif
+
+#if defined(POWER_DCDCEN_DCDCEN_Msk) || defined(__NRFX_DOXYGEN__)
+/** @brief Symbol indicating whether DCDCEN for REG1 is present. */
+#define NRF_POWER_HAS_DCDCEN 1
+#else
+#define NRF_POWER_HAS_DCDCEN 0
+#endif
+
+#if defined(POWER_INTENSET_POFWARN_Msk) || defined(__NRFX_DOXYGEN__)
+/** @brief Symbol indicating whether power failure event is present. */
+#define NRF_POWER_HAS_POFWARN 1
+#else
+#define NRF_POWER_HAS_POFWARN 0
+#endif
+
+#if defined(POWER_POFCON_THRESHOLD_Msk) || defined(__NRFX_DOXYGEN__)
+/** @brief Symbol indicating whether power failure comparator is present. */
+#define NRF_POWER_HAS_POFCON 1
+#else
+#define NRF_POWER_HAS_POFCON 0
+#endif
+
+#if defined(POWER_POFCON_THRESHOLDVDDH_Msk) || defined(__NRFX_DOXYGEN__)
+/** @brief Symbol indicating whether power failure comparator for VDDH is present. */
+#define NRF_POWER_HAS_POFCON_VDDH 1
+#else
+#define NRF_POWER_HAS_POFCON_VDDH 0
+#endif
+
+#if defined(POWER_RESETREAS_RESETPIN_Msk) || defined(__NRFX_DOXYGEN__)
+/** @brief Auxiliary definition to mark the fact that RESETREAS register is present in POWER */
+#define NRF_POWER_HAS_RESETREAS 1
+#else
+#define NRF_POWER_HAS_RESETREAS 0
+#endif
+
+#if defined(POWER_MAINREGSTATUS_MAINREGSTATUS_Msk) || defined(__NRFX_DOXYGEN__)
+/** @brief Symbol indicating whether MAINREGSTATUS register is present. */
+#define NRF_POWER_HAS_MAINREGSTATUS 1
+#else
+#define NRF_POWER_HAS_MAINREGSTATUS 0
+#endif
+
+/** @brief POWER tasks. */
+typedef enum
+{
+    NRF_POWER_TASK_CONSTLAT  = offsetof(NRF_POWER_Type, TASKS_CONSTLAT), /**< Enable constant latency mode. */
+    NRF_POWER_TASK_LOWPWR    = offsetof(NRF_POWER_Type, TASKS_LOWPWR  ), /**< Enable low-power mode (variable latency). */
+} nrf_power_task_t;
+
+/** @brief POWER events. */
+typedef enum
+{
+#if NRF_POWER_HAS_POFWARN
+    NRF_POWER_EVENT_POFWARN      = offsetof(NRF_POWER_Type, EVENTS_POFWARN    ), /**< Power failure warning. */
+#endif
+#if NRF_POWER_HAS_SLEEPEVT
+    NRF_POWER_EVENT_SLEEPENTER   = offsetof(NRF_POWER_Type, EVENTS_SLEEPENTER ), /**< CPU entered WFI/WFE sleep. */
+    NRF_POWER_EVENT_SLEEPEXIT    = offsetof(NRF_POWER_Type, EVENTS_SLEEPEXIT  ), /**< CPU exited WFI/WFE sleep. */
+#endif
+#if NRF_POWER_HAS_USBREG
+    NRF_POWER_EVENT_USBDETECTED  = offsetof(NRF_POWER_Type, EVENTS_USBDETECTED), /**< Voltage supply detected on VBUS. */
+    NRF_POWER_EVENT_USBREMOVED   = offsetof(NRF_POWER_Type, EVENTS_USBREMOVED ), /**< Voltage supply removed from VBUS. */
+    NRF_POWER_EVENT_USBPWRRDY    = offsetof(NRF_POWER_Type, EVENTS_USBPWRRDY  ), /**< USB 3.3&nbsp;V supply ready. */
+#endif
+} nrf_power_event_t;
+
+/** @brief POWER interrupts. */
+typedef enum
+{
+#if NRF_POWER_HAS_POFWARN
+    NRF_POWER_INT_POFWARN_MASK     = POWER_INTENSET_POFWARN_Msk    , /**< Write '1' to Enable interrupt for POFWARN event. */
+#endif
+#if NRF_POWER_HAS_SLEEPEVT
+    NRF_POWER_INT_SLEEPENTER_MASK  = POWER_INTENSET_SLEEPENTER_Msk , /**< Write '1' to Enable interrupt for SLEEPENTER event. */
+    NRF_POWER_INT_SLEEPEXIT_MASK   = POWER_INTENSET_SLEEPEXIT_Msk  , /**< Write '1' to Enable interrupt for SLEEPEXIT event. */
+#endif
+#if NRF_POWER_HAS_USBREG
+    NRF_POWER_INT_USBDETECTED_MASK = POWER_INTENSET_USBDETECTED_Msk, /**< Write '1' to Enable interrupt for USBDETECTED event. */
+    NRF_POWER_INT_USBREMOVED_MASK  = POWER_INTENSET_USBREMOVED_Msk , /**< Write '1' to Enable interrupt for USBREMOVED event. */
+    NRF_POWER_INT_USBPWRRDY_MASK   = POWER_INTENSET_USBPWRRDY_Msk  , /**< Write '1' to Enable interrupt for USBPWRRDY event. */
+#endif
+} nrf_power_int_mask_t;
+
+/** @brief Reset reason. */
+#if NRF_POWER_HAS_RESETREAS
+typedef enum
+{
+    NRF_POWER_RESETREAS_RESETPIN_MASK = POWER_RESETREAS_RESETPIN_Msk, /**< Bit mask of RESETPIN field. */
+    NRF_POWER_RESETREAS_DOG_MASK      = POWER_RESETREAS_DOG_Msk     , /**< Bit mask of DOG field. */
+    NRF_POWER_RESETREAS_SREQ_MASK     = POWER_RESETREAS_SREQ_Msk    , /**< Bit mask of SREQ field. */
+    NRF_POWER_RESETREAS_LOCKUP_MASK   = POWER_RESETREAS_LOCKUP_Msk  , /**< Bit mask of LOCKUP field. */
+    NRF_POWER_RESETREAS_OFF_MASK      = POWER_RESETREAS_OFF_Msk     , /**< Bit mask of OFF field. */
+#if defined(POWER_RESETREAS_LPCOMP_Msk) || defined(__NRFX_DOXYGEN__)
+    NRF_POWER_RESETREAS_LPCOMP_MASK   = POWER_RESETREAS_LPCOMP_Msk  , /**< Bit mask of LPCOMP field. */
+#endif
+    NRF_POWER_RESETREAS_DIF_MASK      = POWER_RESETREAS_DIF_Msk     , /**< Bit mask of DIF field. */
+#if defined(POWER_RESETREAS_NFC_Msk) || defined(__NRFX_DOXYGEN__)
+    NRF_POWER_RESETREAS_NFC_MASK      = POWER_RESETREAS_NFC_Msk     , /**< Bit mask of NFC field. */
+#endif
+#if defined(POWER_RESETREAS_VBUS_Msk) || defined(__NRFX_DOXYGEN__)
+    NRF_POWER_RESETREAS_VBUS_MASK     = POWER_RESETREAS_VBUS_Msk    , /**< Bit mask of VBUS field. */
+#endif
+} nrf_power_resetreas_mask_t;
+#endif // NRF_POWER_HAS_RESETREAS
+
+#if NRF_POWER_HAS_USBREG
+/**
+ * @brief USBREGSTATUS register bit masks
+ *
+ * @sa nrf_power_usbregstatus_get
+ */
+typedef enum
+{
+    NRF_POWER_USBREGSTATUS_VBUSDETECT_MASK = POWER_USBREGSTATUS_VBUSDETECT_Msk, /**< USB detected or removed.     */
+    NRF_POWER_USBREGSTATUS_OUTPUTRDY_MASK  = POWER_USBREGSTATUS_OUTPUTRDY_Msk   /**< USB 3.3&nbsp;V supply ready. */
+} nrf_power_usbregstatus_mask_t;
+#endif // NRF_POWER_HAS_USBREG
+
+#if defined(POWER_RAMSTATUS_RAMBLOCK0_Msk) || defined(__NRFX_DOXYGEN__)
+/**
+ * @brief Numbers of RAM blocks
+ *
+ * @sa nrf_power_ramblock_mask_t
+ * @note
+ * RAM blocks must be used in nRF51.
+ * In newer SoCs, RAM is divided into segments and this functionality is not supported.
+ * See the PS for mapping between the internal RAM and RAM blocks, because this
+ * mapping is not 1:1, and functions related to old style blocks must not be used.
+ */
+typedef enum
+{
+    NRF_POWER_RAMBLOCK0 = POWER_RAMSTATUS_RAMBLOCK0_Pos,
+    NRF_POWER_RAMBLOCK1 = POWER_RAMSTATUS_RAMBLOCK1_Pos,
+#if defined(POWER_RAMSTATUS_RAMBLOCK2_Pos) ||  defined(__NRFX_DOXYGEN__)
+    NRF_POWER_RAMBLOCK2 = POWER_RAMSTATUS_RAMBLOCK2_Pos,
+#endif
+#if defined(POWER_RAMSTATUS_RAMBLOCK3_Pos) ||  defined(__NRFX_DOXYGEN__)
+    NRF_POWER_RAMBLOCK3 = POWER_RAMSTATUS_RAMBLOCK3_Pos
+#endif
+} nrf_power_ramblock_t;
+
+/**
+ * @brief Masks of RAM blocks.
+ *
+ * @sa nrf_power_ramblock_t
+ */
+typedef enum
+{
+    NRF_POWER_RAMBLOCK0_MASK = POWER_RAMSTATUS_RAMBLOCK0_Msk,
+    NRF_POWER_RAMBLOCK1_MASK = POWER_RAMSTATUS_RAMBLOCK1_Msk,
+#if defined(POWER_RAMSTATUS_RAMBLOCK2_Msk) ||  defined(__NRFX_DOXYGEN__)
+    NRF_POWER_RAMBLOCK2_MASK = POWER_RAMSTATUS_RAMBLOCK2_Msk,
+#endif
+#if defined(POWER_RAMSTATUS_RAMBLOCK3_Msk) ||  defined(__NRFX_DOXYGEN__)
+    NRF_POWER_RAMBLOCK3_MASK = POWER_RAMSTATUS_RAMBLOCK3_Msk
+#endif
+} nrf_power_ramblock_mask_t;
+#endif // defined(POWER_RAMSTATUS_RAMBLOCK0_Msk) || defined(__NRFX_DOXYGEN__)
+
+/**
+ * @brief RAM power state position of the bits
+ *
+ * @sa nrf_power_onoffram_mask_t
+ */
+typedef enum
+{
+    NRF_POWER_ONRAM0,  /**< Keep RAM block 0 ON or OFF in System ON mode.                 */
+    NRF_POWER_OFFRAM0, /**< Keep retention on RAM block 0 when RAM block is switched OFF. */
+    NRF_POWER_ONRAM1,  /**< Keep RAM block 1 ON or OFF in System ON mode.                 */
+    NRF_POWER_OFFRAM1, /**< Keep retention on RAM block 1 when RAM block is switched OFF. */
+    NRF_POWER_ONRAM2,  /**< Keep RAM block 2 ON or OFF in System ON mode.                 */
+    NRF_POWER_OFFRAM2, /**< Keep retention on RAM block 2 when RAM block is switched OFF. */
+    NRF_POWER_ONRAM3,  /**< Keep RAM block 3 ON or OFF in System ON mode.                 */
+    NRF_POWER_OFFRAM3, /**< Keep retention on RAM block 3 when RAM block is switched OFF. */
+}nrf_power_onoffram_t;
+
+/**
+ * @brief RAM power state bit masks
+ *
+ * @sa nrf_power_onoffram_t
+ */
+typedef enum
+{
+    NRF_POWER_ONRAM0_MASK  = 1U << NRF_POWER_ONRAM0,  /**< Keep RAM block 0 ON or OFF in System ON mode.                 */
+    NRF_POWER_OFFRAM0_MASK = 1U << NRF_POWER_OFFRAM0, /**< Keep retention on RAM block 0 when RAM block is switched OFF. */
+    NRF_POWER_ONRAM1_MASK  = 1U << NRF_POWER_ONRAM1,  /**< Keep RAM block 1 ON or OFF in System ON mode.                 */
+    NRF_POWER_OFFRAM1_MASK = 1U << NRF_POWER_OFFRAM1, /**< Keep retention on RAM block 1 when RAM block is switched OFF. */
+    NRF_POWER_ONRAM2_MASK  = 1U << NRF_POWER_ONRAM2,  /**< Keep RAM block 2 ON or OFF in System ON mode.                 */
+    NRF_POWER_OFFRAM2_MASK = 1U << NRF_POWER_OFFRAM2, /**< Keep retention on RAM block 2 when RAM block is switched OFF. */
+    NRF_POWER_ONRAM3_MASK  = 1U << NRF_POWER_ONRAM3,  /**< Keep RAM block 3 ON or OFF in System ON mode.                 */
+    NRF_POWER_OFFRAM3_MASK = 1U << NRF_POWER_OFFRAM3, /**< Keep retention on RAM block 3 when RAM block is switched OFF. */
+}nrf_power_onoffram_mask_t;
+
+#if NRF_POWER_HAS_POFCON
+/** @brief Power failure comparator thresholds. */
+typedef enum
+{
+    NRF_POWER_POFTHR_V21 = POWER_POFCON_THRESHOLD_V21, /**< Set threshold to 2.1&nbsp;V. */
+    NRF_POWER_POFTHR_V23 = POWER_POFCON_THRESHOLD_V23, /**< Set threshold to 2.3&nbsp;V. */
+    NRF_POWER_POFTHR_V25 = POWER_POFCON_THRESHOLD_V25, /**< Set threshold to 2.5&nbsp;V. */
+    NRF_POWER_POFTHR_V27 = POWER_POFCON_THRESHOLD_V27, /**< Set threshold to 2.7&nbsp;V. */
+#if defined(POWER_POFCON_THRESHOLD_V17) || defined(__NRFX_DOXYGEN__)
+    NRF_POWER_POFTHR_V17 = POWER_POFCON_THRESHOLD_V17, /**< Set threshold to 1.7&nbsp;V. */
+    NRF_POWER_POFTHR_V18 = POWER_POFCON_THRESHOLD_V18, /**< Set threshold to 1.8&nbsp;V. */
+    NRF_POWER_POFTHR_V19 = POWER_POFCON_THRESHOLD_V19, /**< Set threshold to 1.9&nbsp;V. */
+    NRF_POWER_POFTHR_V20 = POWER_POFCON_THRESHOLD_V20, /**< Set threshold to 2.0&nbsp;V. */
+    NRF_POWER_POFTHR_V22 = POWER_POFCON_THRESHOLD_V22, /**< Set threshold to 2.2&nbsp;V. */
+    NRF_POWER_POFTHR_V24 = POWER_POFCON_THRESHOLD_V24, /**< Set threshold to 2.4&nbsp;V. */
+    NRF_POWER_POFTHR_V26 = POWER_POFCON_THRESHOLD_V26, /**< Set threshold to 2.6&nbsp;V. */
+    NRF_POWER_POFTHR_V28 = POWER_POFCON_THRESHOLD_V28, /**< Set threshold to 2.8&nbsp;V. */
+#endif // defined(POWER_POFCON_THRESHOLD_V17) || defined(__NRFX_DOXYGEN__)
+} nrf_power_pof_thr_t;
+#endif // NRF_POWER_HAS_POFCON
+
+#if NRF_POWER_HAS_POFCON_VDDH
+/** @brief Power failure comparator thresholds for VDDH. */
+typedef enum
+{
+    NRF_POWER_POFTHRVDDH_V27 = POWER_POFCON_THRESHOLDVDDH_V27, /**< Set threshold to 2.7&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V28 = POWER_POFCON_THRESHOLDVDDH_V28, /**< Set threshold to 2.8&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V29 = POWER_POFCON_THRESHOLDVDDH_V29, /**< Set threshold to 2.9&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V30 = POWER_POFCON_THRESHOLDVDDH_V30, /**< Set threshold to 3.0&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V31 = POWER_POFCON_THRESHOLDVDDH_V31, /**< Set threshold to 3.1&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V32 = POWER_POFCON_THRESHOLDVDDH_V32, /**< Set threshold to 3.2&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V33 = POWER_POFCON_THRESHOLDVDDH_V33, /**< Set threshold to 3.3&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V34 = POWER_POFCON_THRESHOLDVDDH_V34, /**< Set threshold to 3.4&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V35 = POWER_POFCON_THRESHOLDVDDH_V35, /**< Set threshold to 3.5&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V36 = POWER_POFCON_THRESHOLDVDDH_V36, /**< Set threshold to 3.6&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V37 = POWER_POFCON_THRESHOLDVDDH_V37, /**< Set threshold to 3.7&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V38 = POWER_POFCON_THRESHOLDVDDH_V38, /**< Set threshold to 3.8&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V39 = POWER_POFCON_THRESHOLDVDDH_V39, /**< Set threshold to 3.9&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V40 = POWER_POFCON_THRESHOLDVDDH_V40, /**< Set threshold to 4.0&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V41 = POWER_POFCON_THRESHOLDVDDH_V41, /**< Set threshold to 4.1&nbsp;V. */
+    NRF_POWER_POFTHRVDDH_V42 = POWER_POFCON_THRESHOLDVDDH_V42, /**< Set threshold to 4.2&nbsp;V. */
+} nrf_power_pof_thrvddh_t;
+#endif // NRF_POWER_HAS_POFCON_VDDH
+
+#if NRF_POWER_HAS_MAINREGSTATUS
+/** @brief Main regulator status. */
+typedef enum
+{
+    NRF_POWER_MAINREGSTATUS_NORMAL = POWER_MAINREGSTATUS_MAINREGSTATUS_Normal, /**< Normal voltage mode. Voltage supplied on VDD. */
+    NRF_POWER_MAINREGSTATUS_HIGH   = POWER_MAINREGSTATUS_MAINREGSTATUS_High    /**< High voltage mode. Voltage supplied on VDDH.  */
+} nrf_power_mainregstatus_t;
+#endif
+
+#if defined(POWER_RAM_POWER_S0POWER_Msk) || defined(__NRFX_DOXYGEN__)
+/**
+ * @brief Bit positions for RAMPOWER register
+ *
+ * All possible bits described, even if they are not used in selected MCU.
+ */
+typedef enum
+{
+    /** Keep RAM section S0 ON in System ON mode */
+    NRF_POWER_RAMPOWER_S0POWER = POWER_RAM_POWER_S0POWER_Pos,
+    NRF_POWER_RAMPOWER_S1POWER,  /**< Keep RAM section S1 ON in System ON mode. */
+    NRF_POWER_RAMPOWER_S2POWER,  /**< Keep RAM section S2 ON in System ON mode. */
+    NRF_POWER_RAMPOWER_S3POWER,  /**< Keep RAM section S3 ON in System ON mode. */
+    NRF_POWER_RAMPOWER_S4POWER,  /**< Keep RAM section S4 ON in System ON mode. */
+    NRF_POWER_RAMPOWER_S5POWER,  /**< Keep RAM section S5 ON in System ON mode. */
+    NRF_POWER_RAMPOWER_S6POWER,  /**< Keep RAM section S6 ON in System ON mode. */
+    NRF_POWER_RAMPOWER_S7POWER,  /**< Keep RAM section S7 ON in System ON mode. */
+    NRF_POWER_RAMPOWER_S8POWER,  /**< Keep RAM section S8 ON in System ON mode. */
+    NRF_POWER_RAMPOWER_S9POWER,  /**< Keep RAM section S9 ON in System ON mode. */
+    NRF_POWER_RAMPOWER_S10POWER, /**< Keep RAM section S10 ON in System ON mode. */
+    NRF_POWER_RAMPOWER_S11POWER, /**< Keep RAM section S11 ON in System ON mode. */
+    NRF_POWER_RAMPOWER_S12POWER, /**< Keep RAM section S12 ON in System ON mode. */
+    NRF_POWER_RAMPOWER_S13POWER, /**< Keep RAM section S13 ON in System ON mode. */
+    NRF_POWER_RAMPOWER_S14POWER, /**< Keep RAM section S14 ON in System ON mode. */
+    NRF_POWER_RAMPOWER_S15POWER, /**< Keep RAM section S15 ON in System ON mode. */
+
+    /** Keep section retention in OFF mode when section is OFF */
+    NRF_POWER_RAMPOWER_S0RETENTION = POWER_RAM_POWER_S0RETENTION_Pos,
+    NRF_POWER_RAMPOWER_S1RETENTION,  /**< Keep section retention in OFF mode when section is OFF. */
+    NRF_POWER_RAMPOWER_S2RETENTION,  /**< Keep section retention in OFF mode when section is OFF. */
+    NRF_POWER_RAMPOWER_S3RETENTION,  /**< Keep section retention in OFF mode when section is OFF. */
+    NRF_POWER_RAMPOWER_S4RETENTION,  /**< Keep section retention in OFF mode when section is OFF. */
+    NRF_POWER_RAMPOWER_S5RETENTION,  /**< Keep section retention in OFF mode when section is OFF. */
+    NRF_POWER_RAMPOWER_S6RETENTION,  /**< Keep section retention in OFF mode when section is OFF. */
+    NRF_POWER_RAMPOWER_S7RETENTION,  /**< Keep section retention in OFF mode when section is OFF. */
+    NRF_POWER_RAMPOWER_S8RETENTION,  /**< Keep section retention in OFF mode when section is OFF. */
+    NRF_POWER_RAMPOWER_S9RETENTION,  /**< Keep section retention in OFF mode when section is OFF. */
+    NRF_POWER_RAMPOWER_S10RETENTION, /**< Keep section retention in OFF mode when section is OFF. */
+    NRF_POWER_RAMPOWER_S11RETENTION, /**< Keep section retention in OFF mode when section is OFF. */
+    NRF_POWER_RAMPOWER_S12RETENTION, /**< Keep section retention in OFF mode when section is OFF. */
+    NRF_POWER_RAMPOWER_S13RETENTION, /**< Keep section retention in OFF mode when section is OFF. */
+    NRF_POWER_RAMPOWER_S14RETENTION, /**< Keep section retention in OFF mode when section is OFF. */
+    NRF_POWER_RAMPOWER_S15RETENTION, /**< Keep section retention in OFF mode when section is OFF. */
+} nrf_power_rampower_t;
+
+/**
+ * @brief Bit masks for RAMPOWER register
+ *
+ * All possible bits described, even if they are not used in selected MCU.
+ */
+typedef enum
+{
+    NRF_POWER_RAMPOWER_S0POWER_MASK  = 1UL << NRF_POWER_RAMPOWER_S0POWER ,
+    NRF_POWER_RAMPOWER_S1POWER_MASK  = 1UL << NRF_POWER_RAMPOWER_S1POWER ,
+    NRF_POWER_RAMPOWER_S2POWER_MASK  = 1UL << NRF_POWER_RAMPOWER_S2POWER ,
+    NRF_POWER_RAMPOWER_S3POWER_MASK  = 1UL << NRF_POWER_RAMPOWER_S3POWER ,
+    NRF_POWER_RAMPOWER_S4POWER_MASK  = 1UL << NRF_POWER_RAMPOWER_S4POWER ,
+    NRF_POWER_RAMPOWER_S5POWER_MASK  = 1UL << NRF_POWER_RAMPOWER_S5POWER ,
+    NRF_POWER_RAMPOWER_S7POWER_MASK  = 1UL << NRF_POWER_RAMPOWER_S7POWER ,
+    NRF_POWER_RAMPOWER_S8POWER_MASK  = 1UL << NRF_POWER_RAMPOWER_S8POWER ,
+    NRF_POWER_RAMPOWER_S9POWER_MASK  = 1UL << NRF_POWER_RAMPOWER_S9POWER ,
+    NRF_POWER_RAMPOWER_S10POWER_MASK = 1UL << NRF_POWER_RAMPOWER_S10POWER,
+    NRF_POWER_RAMPOWER_S11POWER_MASK = 1UL << NRF_POWER_RAMPOWER_S11POWER,
+    NRF_POWER_RAMPOWER_S12POWER_MASK = 1UL << NRF_POWER_RAMPOWER_S12POWER,
+    NRF_POWER_RAMPOWER_S13POWER_MASK = 1UL << NRF_POWER_RAMPOWER_S13POWER,
+    NRF_POWER_RAMPOWER_S14POWER_MASK = 1UL << NRF_POWER_RAMPOWER_S14POWER,
+    NRF_POWER_RAMPOWER_S15POWER_MASK = 1UL << NRF_POWER_RAMPOWER_S15POWER,
+
+    NRF_POWER_RAMPOWER_S0RETENTION_MASK  = 1UL << NRF_POWER_RAMPOWER_S0RETENTION ,
+    NRF_POWER_RAMPOWER_S1RETENTION_MASK  = 1UL << NRF_POWER_RAMPOWER_S1RETENTION ,
+    NRF_POWER_RAMPOWER_S2RETENTION_MASK  = 1UL << NRF_POWER_RAMPOWER_S2RETENTION ,
+    NRF_POWER_RAMPOWER_S3RETENTION_MASK  = 1UL << NRF_POWER_RAMPOWER_S3RETENTION ,
+    NRF_POWER_RAMPOWER_S4RETENTION_MASK  = 1UL << NRF_POWER_RAMPOWER_S4RETENTION ,
+    NRF_POWER_RAMPOWER_S5RETENTION_MASK  = 1UL << NRF_POWER_RAMPOWER_S5RETENTION ,
+    NRF_POWER_RAMPOWER_S7RETENTION_MASK  = 1UL << NRF_POWER_RAMPOWER_S7RETENTION ,
+    NRF_POWER_RAMPOWER_S8RETENTION_MASK  = 1UL << NRF_POWER_RAMPOWER_S8RETENTION ,
+    NRF_POWER_RAMPOWER_S9RETENTION_MASK  = 1UL << NRF_POWER_RAMPOWER_S9RETENTION ,
+    NRF_POWER_RAMPOWER_S10RETENTION_MASK = 1UL << NRF_POWER_RAMPOWER_S10RETENTION,
+    NRF_POWER_RAMPOWER_S11RETENTION_MASK = 1UL << NRF_POWER_RAMPOWER_S11RETENTION,
+    NRF_POWER_RAMPOWER_S12RETENTION_MASK = 1UL << NRF_POWER_RAMPOWER_S12RETENTION,
+    NRF_POWER_RAMPOWER_S13RETENTION_MASK = 1UL << NRF_POWER_RAMPOWER_S13RETENTION,
+    NRF_POWER_RAMPOWER_S14RETENTION_MASK = 1UL << NRF_POWER_RAMPOWER_S14RETENTION,
+    NRF_POWER_RAMPOWER_S15RETENTION_MASK = (int)(1UL << NRF_POWER_RAMPOWER_S15RETENTION),
+} nrf_power_rampower_mask_t;
+#endif // defined(POWER_RAM_POWER_S0POWER_Msk) || defined(__NRFX_DOXYGEN__)
+
+/**
+ * @brief Function for activating a specific POWER task.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] task  Task.
+ */
+NRF_STATIC_INLINE void nrf_power_task_trigger(NRF_POWER_Type * p_reg, nrf_power_task_t task);
+
+/**
+ * @brief Function for returning the address of a specific POWER task register.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] task  Task.
+ *
+ * @return Task address.
+ */
+NRF_STATIC_INLINE uint32_t nrf_power_task_address_get(NRF_POWER_Type const * p_reg,
+                                                      nrf_power_task_t       task);
+
+/**
+ * @brief Function for clearing a specific event.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] event Event.
+ */
+NRF_STATIC_INLINE void nrf_power_event_clear(NRF_POWER_Type * p_reg, nrf_power_event_t event);
+
+/**
+ * @brief Function for retrieving the state of the POWER event.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] event Event to be checked.
+ *
+ * @retval true  The event has been generated.
+ * @retval false The event has not been generated.
+ */
+NRF_STATIC_INLINE bool nrf_power_event_check(NRF_POWER_Type const * p_reg, nrf_power_event_t event);
+
+/**
+ * @brief Function for getting and clearing the state of specific event
+ *
+ * This function checks the state of the event and clears it.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] event Event.
+ *
+ * @retval true  The event was set.
+ * @retval false The event was not set.
+ */
+NRF_STATIC_INLINE bool nrf_power_event_get_and_clear(NRF_POWER_Type *  p_reg,
+                                                     nrf_power_event_t event);
+
+/**
+ * @brief Function for returning the address of a specific POWER event register.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] event Event.
+ *
+ * @return Address.
+ */
+NRF_STATIC_INLINE uint32_t nrf_power_event_address_get(NRF_POWER_Type const * p_reg,
+                                                       nrf_power_event_t      event);
+
+/**
+ * @brief Function for enabling selected interrupts.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] mask  Mask of interrupts to be enabled.
+ */
+NRF_STATIC_INLINE void nrf_power_int_enable(NRF_POWER_Type * p_reg, uint32_t mask);
+
+/**
+ * @brief Function for checking if the specified interrupts are enabled.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] mask  Mask of interrupts to be checked.
+ *
+ * @return Mask of enabled interrupts.
+ */
+NRF_STATIC_INLINE uint32_t nrf_power_int_enable_check(NRF_POWER_Type const * p_reg, uint32_t mask);
+
+/**
+ * @brief Function for retrieving the information about enabled interrupts.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ *
+ * @return The flags of enabled interrupts.
+ */
+NRF_STATIC_INLINE uint32_t nrf_power_int_enable_get(NRF_POWER_Type const * p_reg);
+
+/**
+ * @brief Function for disabling selected interrupts.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] mask  Mask of interrupts to be disabled.
+ */
+NRF_STATIC_INLINE void nrf_power_int_disable(NRF_POWER_Type * p_reg, uint32_t mask);
+
+#if defined(DPPI_PRESENT) || defined(__NRFX_DOXYGEN__)
+/**
+ * @brief Function for setting the subscribe configuration for a given
+ *        POWER task.
+ *
+ * @param[in] p_reg   Pointer to the structure of registers of the peripheral.
+ * @param[in] task    Task for which to set the configuration.
+ * @param[in] channel Channel through which to subscribe events.
+ */
+NRF_STATIC_INLINE void nrf_power_subscribe_set(NRF_POWER_Type * p_reg,
+                                               nrf_power_task_t task,
+                                               uint8_t          channel);
+
+/**
+ * @brief Function for clearing the subscribe configuration for a given
+ *        POWER task.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] task  Task for which to clear the configuration.
+ */
+NRF_STATIC_INLINE void nrf_power_subscribe_clear(NRF_POWER_Type * p_reg, nrf_power_task_t task);
+
+/**
+ * @brief Function for setting the publish configuration for a given
+ *        POWER event.
+ *
+ * @param[in] p_reg   Pointer to the structure of registers of the peripheral.
+ * @param[in] event   Event for which to set the configuration.
+ * @param[in] channel Channel through which to publish the event.
+ */
+NRF_STATIC_INLINE void nrf_power_publish_set(NRF_POWER_Type *  p_reg,
+                                             nrf_power_event_t event,
+                                             uint8_t           channel);
+
+/**
+ * @brief Function for clearing the publish configuration for a given
+ *        POWER event.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] event Event for which to clear the configuration.
+ */
+NRF_STATIC_INLINE void nrf_power_publish_clear(NRF_POWER_Type * p_reg, nrf_power_event_t event);
+#endif // defined(DPPI_PRESENT) || defined(__NRFX_DOXYGEN__)
+
+#if NRF_POWER_HAS_RESETREAS
+/**
+ * @brief Function for getting the reset reason bitmask.
+ *
+ * This function returns the reset reason bitmask.
+ * Unless cleared, the RESETREAS register is cumulative.
+ * A field is cleared by writing '1' to it (see @ref nrf_power_resetreas_clear).
+ * If none of the reset sources is flagged,
+ * the chip was reset from the on-chip reset generator,
+ * which indicates a power-on-reset or a brown out reset.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ *
+ * @return The mask of reset reasons constructed with @ref nrf_power_resetreas_mask_t.
+ */
+NRF_STATIC_INLINE uint32_t nrf_power_resetreas_get(NRF_POWER_Type const * p_reg);
+
+/**
+ * @brief Function for clearing the selected reset reason field.
+ *
+ * This function clears the selected reset reason field.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] mask  The mask constructed from @ref nrf_power_resetreas_mask_t enumerator values.
+ *
+ * @sa nrf_power_resetreas_get
+ */
+NRF_STATIC_INLINE void nrf_power_resetreas_clear(NRF_POWER_Type * p_reg, uint32_t mask);
+#endif // NRF_POWER_HAS_RESETREAS
+
+#if defined(POWER_POWERSTATUS_LTEMODEM_Msk) || defined(__NRFX_DOXYGEN__)
+/**
+ * @brief Function for getting power status of the LTE Modem domain.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ *
+ * @retval true  The LTE Modem domain is powered on.
+ * @retval false The LTE Modem domain is powered off.
+ */
+NRF_STATIC_INLINE bool nrf_power_powerstatus_get(NRF_POWER_Type const * p_reg);
+#endif
+
+#if defined(POWER_RAMSTATUS_RAMBLOCK0_Msk) || defined(__NRFX_DOXYGEN__)
+/**
+ * @brief Function for getting the RAMSTATUS register.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ *
+ * @return Value with bits set according to the masks in @ref nrf_power_ramblock_mask_t.
+ */
+NRF_STATIC_INLINE uint32_t nrf_power_ramstatus_get(NRF_POWER_Type const * p_reg);
+#endif // defined(POWER_RAMSTATUS_RAMBLOCK0_Msk) || defined(__NRFX_DOXYGEN__)
+
+#if defined(POWER_SYSTEMOFF_SYSTEMOFF_Enter)
+/**
+ * @brief Function for going into System OFF mode.
+ *
+ * This function puts the CPU in System OFF mode.
+ * The only way to wake up the CPU is by reset.
+ *
+ * @note This function never returns.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ */
+NRF_STATIC_INLINE void nrf_power_system_off(NRF_POWER_Type * p_reg);
+#endif // defined(POWER_SYSTEMOFF_SYSTEMOFF_Enter)
+
+#if NRF_POWER_HAS_POFCON
+/**
+ * @brief Function for setting the power failure comparator configuration.
+ *
+ * @param[in] p_reg  Pointer to the structure of registers of the peripheral.
+ * @param[in] enable True if the power failure comparator is to be enabled, false otherwise.
+ * @param[in] thr    voltage threshold value.
+ */
+NRF_STATIC_INLINE void nrf_power_pofcon_set(NRF_POWER_Type *    p_reg,
+                                            bool                enable,
+                                            nrf_power_pof_thr_t thr);
+
+/**
+ * @brief Function for getting the power failure comparator configuration.
+ *
+ * @param[in]  p_reg     Pointer to the structure of registers of the peripheral.
+ * @param[out] p_enabled Function sets this boolean variable to true
+ *                       if power failure comparator is enabled.
+ *                       The pointer can be NULL if we do not need this information.
+ *
+ * @return Threshold setting for power failure comparator.
+ */
+NRF_STATIC_INLINE nrf_power_pof_thr_t nrf_power_pofcon_get(NRF_POWER_Type const * p_reg,
+                                                           bool *                 p_enabled);
+#endif // NRF_POWER_HAS_POFCON
+
+#if NRF_POWER_HAS_POFCON_VDDH
+/**
+ * @brief Function for setting the VDDH power failure comparator threshold.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] thr   Threshold to be set.
+ */
+NRF_STATIC_INLINE void nrf_power_pofcon_vddh_set(NRF_POWER_Type *        p_reg,
+                                                 nrf_power_pof_thrvddh_t thr);
+
+/**
+ * @brief Function for getting the VDDH power failure comparator threshold.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ *
+ * @return VDDH threshold currently configured.
+ */
+NRF_STATIC_INLINE nrf_power_pof_thrvddh_t nrf_power_pofcon_vddh_get(NRF_POWER_Type const * p_reg);
+#endif // NRF_POWER_HAS_POFCON_VDDH
+
+/**
+ * @brief Function for setting the general purpose retention register.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] val   Value to be set in the register.
+ */
+NRF_STATIC_INLINE void nrf_power_gpregret_set(NRF_POWER_Type * p_reg, uint8_t val);
+
+/**
+ * @brief Function for getting general purpose retention register.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ *
+ * @return The value from the register.
+ */
+NRF_STATIC_INLINE uint8_t nrf_power_gpregret_get(NRF_POWER_Type const * p_reg);
+
+#if defined(POWER_GPREGRET2_GPREGRET_Msk) || defined(__NRFX_DOXYGEN__)
+/**
+ * @brief Function for setting the general purpose retention register 2.
+ *
+ * @note This register is not available in the nRF51 MCU family.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] val   Value to be set in the register.
+ */
+NRF_STATIC_INLINE void nrf_power_gpregret2_set(NRF_POWER_Type * p_reg, uint8_t val);
+
+/**
+ * @brief Function for getting the general purpose retention register 2.
+ *
+ * @note This register is not available in all MCUs.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ *
+ * @return The value from the register.
+ */
+NRF_STATIC_INLINE uint8_t nrf_power_gpregret2_get(NRF_POWER_Type const * p_reg);
+#endif // defined(POWER_GPREGRET2_GPREGRET_Msk) || defined(__NRFX_DOXYGEN__)
+
+/**
+ * @brief Function for getting value of the particular general purpose retention register
+ *
+ * @param[in] p_reg   Pointer to the structure of registers of the peripheral.
+ * @param[in] reg_num General purpose retention register number.
+ *
+ * @return The value from the register
+ */
+NRF_STATIC_INLINE uint8_t nrf_power_gpregret_ext_get(NRF_POWER_Type const * p_reg, uint8_t reg_num);
+
+/**
+ * @brief Function for setting particular general purpose retention register.
+ *
+ * @param[in] p_reg   Pointer to the structure of registers of the peripheral.
+ * @param[in] reg_num General purpose retention register number.
+ * @param[in] val     Value to be set in the register
+ */
+NRF_STATIC_INLINE void nrf_power_gpregret_ext_set(NRF_POWER_Type * p_reg,
+                                                  uint8_t          reg_num,
+                                                  uint8_t          val);
+
+#if NRF_POWER_HAS_DCDCEN
+/**
+ * @brief Enable or disable DCDC converter
+ *
+ * @note If the device consist of high voltage power input (VDDH), this setting
+ *       will relate to the converter on low voltage side (1.3&nbsp;V output).
+ *
+ * @param[in] p_reg  Pointer to the structure of registers of the peripheral.
+ * @param[in] enable True if DCDC converter is to be enabled, false otherwise.
+ */
+NRF_STATIC_INLINE void nrf_power_dcdcen_set(NRF_POWER_Type * p_reg, bool enable);
+
+/**
+ * @brief Function for getting the state of the DCDC converter.
+ *
+ * @note If the device consist of high voltage power input (VDDH), this setting
+ *       will relate to the converter on low voltage side (1.3&nbsp;V output).
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ *
+ * @retval true  Converter is enabled.
+ * @retval false Converter is disabled.
+ */
+NRF_STATIC_INLINE bool nrf_power_dcdcen_get(NRF_POWER_Type const * p_reg);
+#endif // NRF_POWER_HAS_DCDCEN
+
+#if defined(POWER_RAM_POWER_S0POWER_Msk) || defined(__NRFX_DOXYGEN__)
+/**
+ * @brief Turn ON sections in the selected RAM block.
+ *
+ * This function turns ON several sections in one block and also block retention.
+ *
+ * @sa nrf_power_rampower_mask_t
+ * @sa nrf_power_rampower_mask_off
+ *
+ * @param[in] p_reg        Pointer to the structure of registers of the peripheral.
+ * @param[in] block        RAM block index.
+ * @param[in] section_mask Mask of the sections created by merging
+ *                         @ref nrf_power_rampower_mask_t flags.
+ */
+NRF_STATIC_INLINE void nrf_power_rampower_mask_on(NRF_POWER_Type * p_reg,
+                                                  uint8_t          block,
+                                                  uint32_t         section_mask);
+
+/**
+ * @brief Turn ON sections in the selected RAM block.
+ *
+ * This function turns OFF several sections in one block and also block retention.
+ *
+ * @sa nrf_power_rampower_mask_t
+ * @sa nrf_power_rampower_mask_off
+ *
+ * @param[in] p_reg        Pointer to the structure of registers of the peripheral.
+ * @param[in] block        RAM block index.
+ * @param[in] section_mask Mask of the sections created by merging
+ *                         @ref nrf_power_rampower_mask_t flags.
+ */
+NRF_STATIC_INLINE void nrf_power_rampower_mask_off(NRF_POWER_Type * p_reg,
+                                                   uint8_t          block,
+                                                   uint32_t         section_mask);
+
+/**
+ * @brief Function for getting the ON mask and retention sections in the selected RAM block.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] block RAM block index.
+ *
+ * @return Mask of sections state composed from @ref nrf_power_rampower_mask_t flags.
+ */
+NRF_STATIC_INLINE uint32_t nrf_power_rampower_mask_get(NRF_POWER_Type const * p_reg, uint8_t block);
+#endif /* defined(POWER_RAM_POWER_S0POWER_Msk) || defined(__NRFX_DOXYGEN__) */
+
+#if NRF_POWER_HAS_DCDCEN_VDDH
+/**
+ * @brief Function for enabling or disabling the DCDC converter on VDDH.
+ *
+ * @param[in] p_reg  Pointer to the structure of registers of the peripheral.
+ * @param[in] enable True if DCDC converter on VDDH is to be enabled, false otherwise.
+ */
+NRF_STATIC_INLINE void nrf_power_dcdcen_vddh_set(NRF_POWER_Type * p_reg, bool enable);
+
+/**
+ * @brief Function for getting the state of DCDC converter on VDDH.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ *
+ * @retval true  Converter is enabled.
+ * @retval false Converter is disabled.
+ */
+NRF_STATIC_INLINE bool nrf_power_dcdcen_vddh_get(NRF_POWER_Type const * p_reg);
+#endif // NRF_POWER_HAS_DCDCEN_VDDH
+
+#if NRF_POWER_HAS_MAINREGSTATUS
+/**
+ * @brief Function for getting the main supply status.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ *
+ * @return The current main supply status.
+ */
+NRF_STATIC_INLINE
+nrf_power_mainregstatus_t nrf_power_mainregstatus_get(NRF_POWER_Type const * p_reg);
+#endif // NRF_POWER_HAS_MAINREGSTATUS
+
+#if NRF_POWER_HAS_USBREG
+/**
+ * @brief Function for getting the whole USBREGSTATUS register.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ *
+ * @return The USBREGSTATUS register value.
+ *         Use @ref nrf_power_usbregstatus_mask_t values for bit masking.
+ *
+ * @sa nrf_power_usbregstatus_vbusdet_get
+ * @sa nrf_power_usbregstatus_outrdy_get
+ */
+NRF_STATIC_INLINE uint32_t nrf_power_usbregstatus_get(NRF_POWER_Type const * p_reg);
+
+/**
+ * @brief Function for getting the VBUS input detection status.
+ *
+ * USBDETECTED and USBREMOVED events are derived from this information
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ *
+ * @retval false VBUS voltage below valid threshold.
+ * @retval true  VBUS voltage above valid threshold.
+ *
+ * @sa nrf_power_usbregstatus_get
+ */
+NRF_STATIC_INLINE bool nrf_power_usbregstatus_vbusdet_get(NRF_POWER_Type const * p_reg);
+
+/**
+ * @brief Function for getting the state of the elapsed time for the USB supply output settling.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ *
+ * @retval false USBREG output settling time not elapsed.
+ * @retval true  USBREG output settling time elapsed
+ *               (same information as USBPWRRDY event).
+ *
+ * @sa nrf_power_usbregstatus_get
+ */
+NRF_STATIC_INLINE bool nrf_power_usbregstatus_outrdy_get(NRF_POWER_Type const * p_reg);
+#endif // NRF_POWER_HAS_USBREG
+
+#ifndef NRF_DECLARE_ONLY
+
+NRF_STATIC_INLINE void nrf_power_task_trigger(NRF_POWER_Type * p_reg, nrf_power_task_t task)
+{
+    *((volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)task)) = 0x1UL;
+}
+
+NRF_STATIC_INLINE uint32_t nrf_power_task_address_get(NRF_POWER_Type const * p_reg,
+                                                      nrf_power_task_t       task)
+{
+    return ((uint32_t)p_reg + (uint32_t)task);
+}
+
+NRF_STATIC_INLINE void nrf_power_event_clear(NRF_POWER_Type * p_reg, nrf_power_event_t event)
+{
+    *((volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)event)) = 0x0UL;
+    nrf_event_readback((uint8_t *)p_reg + (uint32_t)event);
+}
+
+NRF_STATIC_INLINE bool nrf_power_event_check(NRF_POWER_Type const * p_reg, nrf_power_event_t event)
+{
+    return (bool)*(volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)event);
+}
+
+NRF_STATIC_INLINE bool nrf_power_event_get_and_clear(NRF_POWER_Type *  p_reg,
+                                                     nrf_power_event_t event)
+{
+    bool ret = nrf_power_event_check(p_reg, event);
+    if (ret)
+    {
+        nrf_power_event_clear(p_reg, event);
+    }
+    return ret;
+}
+
+NRF_STATIC_INLINE uint32_t nrf_power_event_address_get(NRF_POWER_Type const * p_reg,
+                                                       nrf_power_event_t      event)
+{
+    return ((uint32_t)p_reg + (uint32_t)event);
+}
+
+NRF_STATIC_INLINE void nrf_power_int_enable(NRF_POWER_Type * p_reg, uint32_t mask)
+{
+    p_reg->INTENSET = mask;
+}
+
+NRF_STATIC_INLINE uint32_t nrf_power_int_enable_check(NRF_POWER_Type const * p_reg, uint32_t mask)
+{
+    return p_reg->INTENSET & mask;
+}
+
+NRF_STATIC_INLINE uint32_t nrf_power_int_enable_get(NRF_POWER_Type const * p_reg)
+{
+    return p_reg->INTENSET;
+}
+
+NRF_STATIC_INLINE void nrf_power_int_disable(NRF_POWER_Type * p_reg, uint32_t mask)
+{
+    p_reg->INTENCLR = mask;
+}
+
+#if defined(DPPI_PRESENT)
+NRF_STATIC_INLINE void nrf_power_subscribe_set(NRF_POWER_Type * p_reg,
+                                               nrf_power_task_t task,
+                                               uint8_t          channel)
+{
+    *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) task + 0x80uL)) =
+            ((uint32_t)channel | POWER_SUBSCRIBE_CONSTLAT_EN_Msk);
+}
+
+NRF_STATIC_INLINE void nrf_power_subscribe_clear(NRF_POWER_Type * p_reg, nrf_power_task_t task)
+{
+    *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) task + 0x80uL)) = 0;
+}
+
+NRF_STATIC_INLINE void nrf_power_publish_set(NRF_POWER_Type *  p_reg,
+                                             nrf_power_event_t event,
+                                             uint8_t           channel)
+{
+    *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) event + 0x80uL)) =
+            ((uint32_t)channel | POWER_PUBLISH_SLEEPENTER_EN_Msk);
+}
+
+NRF_STATIC_INLINE void nrf_power_publish_clear(NRF_POWER_Type * p_reg, nrf_power_event_t event)
+{
+    *((volatile uint32_t *) ((uint8_t *) p_reg + (uint32_t) event + 0x80uL)) = 0;
+}
+#endif // defined(DPPI_PRESENT)
+
+#if NRF_POWER_HAS_RESETREAS
+NRF_STATIC_INLINE uint32_t nrf_power_resetreas_get(NRF_POWER_Type const * p_reg)
+{
+    return p_reg->RESETREAS;
+}
+
+NRF_STATIC_INLINE void nrf_power_resetreas_clear(NRF_POWER_Type * p_reg, uint32_t mask)
+{
+    p_reg->RESETREAS = mask;
+}
+#endif // NRF_POWER_HAS_RESETREAS
+
+#if defined(POWER_POWERSTATUS_LTEMODEM_Msk)
+NRF_STATIC_INLINE bool nrf_power_powerstatus_get(NRF_POWER_Type const * p_reg)
+{
+    return (p_reg->POWERSTATUS & POWER_POWERSTATUS_LTEMODEM_Msk) ==
+           (POWER_POWERSTATUS_LTEMODEM_ON << POWER_POWERSTATUS_LTEMODEM_Pos);
+}
+#endif // (POWER_POWERSTATUS_LTEMODEM_Msk)
+
+#if defined(POWER_RAMSTATUS_RAMBLOCK0_Msk)
+NRF_STATIC_INLINE uint32_t nrf_power_ramstatus_get(NRF_POWER_Type const * p_reg)
+{
+    return p_reg->RAMSTATUS;
+}
+#endif // defined(POWER_RAMSTATUS_RAMBLOCK0_Msk)
+
+#if defined(POWER_SYSTEMOFF_SYSTEMOFF_Enter)
+NRF_STATIC_INLINE void nrf_power_system_off(NRF_POWER_Type * p_reg)
+{
+    p_reg->SYSTEMOFF = POWER_SYSTEMOFF_SYSTEMOFF_Enter;
+    __DSB();
+
+    /* Solution for simulated System OFF in debug mode */
+    while (true)
+    {
+        __WFE();
+    }
+}
+#endif // defined(POWER_SYSTEMOFF_SYSTEMOFF_Enter)
+
+#if NRF_POWER_HAS_POFCON
+NRF_STATIC_INLINE void nrf_power_pofcon_set(NRF_POWER_Type *    p_reg,
+                                            bool                enable,
+                                            nrf_power_pof_thr_t thr)
+{
+    NRFX_ASSERT(thr == (thr & (POWER_POFCON_THRESHOLD_Msk >> POWER_POFCON_THRESHOLD_Pos)));
+#if NRF_POWER_HAS_POFCON_VDDH
+    uint32_t pofcon = p_reg->POFCON;
+    pofcon &= ~(POWER_POFCON_THRESHOLD_Msk | POWER_POFCON_POF_Msk);
+    pofcon |=
+#else // NRF_POWER_HAS_POFCON_VDDH
+    p_reg->POFCON =
+#endif
+        (((uint32_t)thr) << POWER_POFCON_THRESHOLD_Pos) |
+        (enable ?
+        (POWER_POFCON_POF_Enabled << POWER_POFCON_POF_Pos)
+        :
+        (POWER_POFCON_POF_Disabled << POWER_POFCON_POF_Pos));
+#if NRF_POWER_HAS_POFCON_VDDH
+    p_reg->POFCON = pofcon;
+#endif
+}
+
+NRF_STATIC_INLINE nrf_power_pof_thr_t nrf_power_pofcon_get(NRF_POWER_Type const * p_reg,
+                                                           bool *                 p_enabled)
+{
+    uint32_t pofcon = p_reg->POFCON;
+    if (NULL != p_enabled)
+    {
+        (*p_enabled) = ((pofcon & POWER_POFCON_POF_Msk) >> POWER_POFCON_POF_Pos)
+            == POWER_POFCON_POF_Enabled;
+    }
+    return (nrf_power_pof_thr_t)((pofcon & POWER_POFCON_THRESHOLD_Msk) >>
+        POWER_POFCON_THRESHOLD_Pos);
+}
+#endif // NRF_POWER_HAS_POFCON
+
+#if NRF_POWER_HAS_POFCON_VDDH
+NRF_STATIC_INLINE void nrf_power_pofcon_vddh_set(NRF_POWER_Type *        p_reg,
+                                                 nrf_power_pof_thrvddh_t thr)
+{
+    NRFX_ASSERT(thr == (thr & (POWER_POFCON_THRESHOLDVDDH_Msk >> POWER_POFCON_THRESHOLDVDDH_Pos)));
+    uint32_t pofcon = p_reg->POFCON;
+    pofcon &= ~POWER_POFCON_THRESHOLDVDDH_Msk;
+    pofcon |= (((uint32_t)thr) << POWER_POFCON_THRESHOLDVDDH_Pos);
+    p_reg->POFCON = pofcon;
+}
+
+NRF_STATIC_INLINE nrf_power_pof_thrvddh_t nrf_power_pofcon_vddh_get(NRF_POWER_Type const * p_reg)
+{
+    return (nrf_power_pof_thrvddh_t)((p_reg->POFCON & POWER_POFCON_THRESHOLDVDDH_Msk) >>
+                                     POWER_POFCON_THRESHOLDVDDH_Pos);
+}
+#endif // NRF_POWER_HAS_POFCON_VDDH
+
+NRF_STATIC_INLINE void nrf_power_gpregret_set(NRF_POWER_Type * p_reg, uint8_t val)
+{
+    volatile uint32_t * p_gpregret;
+    if (sizeof(p_reg->GPREGRET) > sizeof(uint32_t))
+    {
+        p_gpregret = &((volatile uint32_t *)p_reg->GPREGRET)[0];
+    }
+    else
+    {
+        p_gpregret = &((volatile uint32_t *)&p_reg->GPREGRET)[0];
+    }
+    *p_gpregret = val;
+}
+
+NRF_STATIC_INLINE uint8_t nrf_power_gpregret_get(NRF_POWER_Type const * p_reg)
+{
+    volatile uint32_t * p_gpregret;
+    if (sizeof(p_reg->GPREGRET) > sizeof(uint32_t))
+    {
+        p_gpregret = &((volatile uint32_t *)p_reg->GPREGRET)[0];
+    }
+    else
+    {
+        p_gpregret = &((volatile uint32_t *)&p_reg->GPREGRET)[0];
+    }
+    return *p_gpregret;
+}
+
+NRF_STATIC_INLINE void nrf_power_gpregret_ext_set(NRF_POWER_Type * p_reg,
+                                                  uint8_t          reg_num,
+                                                  uint8_t          val)
+{
+#if defined(NRF91_SERIES) || defined(NRF5340_XXAA_APPLICATION) || defined(NRF5340_XXAA_NETWORK)
+    p_reg->GPREGRET[reg_num] = val;
+#else
+    NRFX_ASSERT(reg_num < 1);
+    p_reg->GPREGRET = val;
+#endif
+}
+
+NRF_STATIC_INLINE uint8_t nrf_power_gpregret_ext_get(NRF_POWER_Type const * p_reg, uint8_t reg_num)
+{
+#if defined(NRF91_SERIES) || defined(NRF5340_XXAA_APPLICATION) || defined(NRF5340_XXAA_NETWORK)
+    return p_reg->GPREGRET[reg_num];
+#else
+    NRFX_ASSERT(reg_num < 1);
+    return p_reg->GPREGRET;
+#endif
+}
+
+#if defined(POWER_GPREGRET2_GPREGRET_Msk)
+NRF_STATIC_INLINE void nrf_power_gpregret2_set(NRF_POWER_Type * p_reg, uint8_t val)
+{
+    p_reg->GPREGRET2 = val;
+}
+
+NRF_STATIC_INLINE uint8_t nrf_power_gpregret2_get(NRF_POWER_Type const * p_reg)
+{
+    return p_reg->GPREGRET2;
+}
+#endif
+
+#if NRF_POWER_HAS_DCDCEN
+NRF_STATIC_INLINE void nrf_power_dcdcen_set(NRF_POWER_Type * p_reg, bool enable)
+{
+    p_reg->DCDCEN = (enable ? POWER_DCDCEN_DCDCEN_Enabled : POWER_DCDCEN_DCDCEN_Disabled) <<
+                    POWER_DCDCEN_DCDCEN_Pos;
+}
+
+NRF_STATIC_INLINE bool nrf_power_dcdcen_get(NRF_POWER_Type const * p_reg)
+{
+    return (p_reg->DCDCEN & POWER_DCDCEN_DCDCEN_Msk)
+            ==
+           (POWER_DCDCEN_DCDCEN_Enabled << POWER_DCDCEN_DCDCEN_Pos);
+}
+#endif // NRF_POWER_HAS_DCDCEN
+
+#if defined(POWER_RAM_POWER_S0POWER_Msk)
+NRF_STATIC_INLINE void nrf_power_rampower_mask_on(NRF_POWER_Type * p_reg,
+                                                  uint8_t          block,
+                                                  uint32_t         section_mask)
+{
+    p_reg->RAM[block].POWERSET = section_mask;
+}
+
+NRF_STATIC_INLINE void nrf_power_rampower_mask_off(NRF_POWER_Type * p_reg,
+                                                   uint8_t          block,
+                                                   uint32_t         section_mask)
+{
+    p_reg->RAM[block].POWERCLR = section_mask;
+}
+
+NRF_STATIC_INLINE uint32_t nrf_power_rampower_mask_get(NRF_POWER_Type const * p_reg, uint8_t block)
+{
+    return p_reg->RAM[block].POWER;
+}
+#endif // defined(POWER_RAM_POWER_S0POWER_Msk)
+
+#if NRF_POWER_HAS_DCDCEN_VDDH
+NRF_STATIC_INLINE void nrf_power_dcdcen_vddh_set(NRF_POWER_Type * p_reg, bool enable)
+{
+    if (enable && nrf52_errata_197())
+    {
+        // Workaround for anomaly 197 "POWER: DCDC of REG0 not functional".
+        *(volatile uint32_t *)0x40000638ul = 1ul;
+    }
+    p_reg->DCDCEN0 = (enable ? POWER_DCDCEN0_DCDCEN_Enabled : POWER_DCDCEN0_DCDCEN_Disabled) <<
+                     POWER_DCDCEN0_DCDCEN_Pos;
+}
+
+NRF_STATIC_INLINE bool nrf_power_dcdcen_vddh_get(NRF_POWER_Type const * p_reg)
+{
+    return (p_reg->DCDCEN0 & POWER_DCDCEN0_DCDCEN_Msk)
+            ==
+           (POWER_DCDCEN0_DCDCEN_Enabled << POWER_DCDCEN0_DCDCEN_Pos);
+}
+#endif // NRF_POWER_HAS_DCDCEN_VDDH
+
+#if NRF_POWER_HAS_MAINREGSTATUS
+NRF_STATIC_INLINE
+nrf_power_mainregstatus_t nrf_power_mainregstatus_get(NRF_POWER_Type const * p_reg)
+{
+    return (nrf_power_mainregstatus_t)(((p_reg->MAINREGSTATUS) &
+        POWER_MAINREGSTATUS_MAINREGSTATUS_Msk) >>
+        POWER_MAINREGSTATUS_MAINREGSTATUS_Pos);
+}
+#endif // NRF_POWER_HAS_MAINREGSTATUS
+
+#if NRF_POWER_HAS_USBREG
+NRF_STATIC_INLINE uint32_t nrf_power_usbregstatus_get(NRF_POWER_Type const * p_reg)
+{
+    return p_reg->USBREGSTATUS;
+}
+
+NRF_STATIC_INLINE bool nrf_power_usbregstatus_vbusdet_get(NRF_POWER_Type const * p_reg)
+{
+    return (nrf_power_usbregstatus_get(p_reg) & NRF_POWER_USBREGSTATUS_VBUSDETECT_MASK) != 0;
+}
+
+NRF_STATIC_INLINE bool nrf_power_usbregstatus_outrdy_get(NRF_POWER_Type const * p_reg)
+{
+    return (nrf_power_usbregstatus_get(p_reg) & NRF_POWER_USBREGSTATUS_OUTPUTRDY_MASK) != 0;
+}
+#endif // NRF_POWER_HAS_USBREG
+
+#endif // NRF_DECLARE_ONLY
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NRF_POWER_H__
diff --git a/platform/ext/target/nordic_nrf/common/core/nrfx/hal/nrf_reset.h b/platform/ext/target/nordic_nrf/common/core/nrfx/hal/nrf_reset.h
new file mode 100644
index 0000000..a9e83ac
--- /dev/null
+++ b/platform/ext/target/nordic_nrf/common/core/nrfx/hal/nrf_reset.h
@@ -0,0 +1,150 @@
+/*
+ * Copyright (c) 2019 - 2020, 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 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 the copyright holder 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.
+ */
+
+#ifndef NRF_RESET_H__
+#define NRF_RESET_H__
+
+#include <nrfx.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(NRF5340_XXAA_NETWORK) || defined(__NRFX_DOXYGEN__)
+/** @brief Presence of Network core RESET functionality. */
+#define NRF_RESET_HAS_NETWORK 1
+#else
+#define NRF_RESET_HAS_NETWORK 0
+#endif
+
+#if defined(NRF5340_XXAA_APPLICATION) || defined(__NRFX_DOXYGEN__)
+/** @brief Presence of Application core RESET functionality. */
+#define NRF_RESET_HAS_APPLICATION 1
+#else
+#define NRF_RESET_HAS_APPLICATION 0
+#endif
+
+/**
+ * @defgroup nrf_reset_hal RESET HAL
+ * @{
+ * @ingroup nrf_reset
+ * @brief   Hardware access layer for managing the RESET peripheral.
+ */
+
+/** @brief Reset reason bit masks. */
+typedef enum
+{
+    NRF_RESET_RESETREAS_RESETPIN_MASK  = RESET_RESETREAS_RESETPIN_Msk,  ///< Bit mask of RESETPIN field.
+    NRF_RESET_RESETREAS_DOG0_MASK      = RESET_RESETREAS_DOG0_Msk,      ///< Bit mask of DOG0 field.
+    NRF_RESET_RESETREAS_CTRLAP_MASK    = RESET_RESETREAS_CTRLAP_Msk,    ///< Bit mask of CTRLAP field.
+    NRF_RESET_RESETREAS_SREQ_MASK      = RESET_RESETREAS_SREQ_Msk,      ///< Bit mask of SREQ field.
+    NRF_RESET_RESETREAS_LOCKUP_MASK    = RESET_RESETREAS_LOCKUP_Msk,    ///< Bit mask of LOCKUP field.
+    NRF_RESET_RESETREAS_OFF_MASK       = RESET_RESETREAS_OFF_Msk,       ///< Bit mask of OFF field.
+    NRF_RESET_RESETREAS_LPCOMP_MASK    = RESET_RESETREAS_LPCOMP_Msk,    ///< Bit mask of LPCOMP field.
+    NRF_RESET_RESETREAS_DIF_MASK       = RESET_RESETREAS_DIF_Msk,       ///< Bit mask of DIF field.
+#if NRF_RESET_HAS_NETWORK
+    NRF_RESET_RESETREAS_LSREQ_MASK     = RESET_RESETREAS_LSREQ_Msk,     ///< Bit mask of LSREQ field.
+    NRF_RESET_RESETREAS_LLOCKUP_MASK   = RESET_RESETREAS_LLOCKUP_Msk,   ///< Bit mask of LLOCKUP field.
+    NRF_RESET_RESETREAS_LDOG_MASK      = RESET_RESETREAS_LDOG_Msk,      ///< Bit mask of LDOG field.
+    NRF_RESET_RESETREAS_MFORCEOFF_MASK = RESET_RESETREAS_MFORCEOFF_Msk, ///< Bit mask of MFORCEOFF field.
+#endif
+    NRF_RESET_RESETREAS_NFC_MASK       = RESET_RESETREAS_NFC_Msk,       ///< Bit mask of NFC field.
+    NRF_RESET_RESETREAS_DOG1_MASK      = RESET_RESETREAS_DOG1_Msk,      ///< Bit mask of DOG1 field.
+    NRF_RESET_RESETREAS_VBUS_MASK      = RESET_RESETREAS_VBUS_Msk,      ///< Bit mask of VBUS field.
+#if NRF_RESET_HAS_NETWORK
+    NRF_RESET_RESETREAS_LCTRLAP_MASK   = RESET_RESETREAS_LCTRLAP_Msk,   ///< Bit mask of LCTRLAP field.
+#endif
+} nrf_reset_resetreas_mask_t;
+
+/**
+ * @brief Function for getting the reset reason bitmask.
+ *
+ * This function returns the reset reason bitmask.
+ * Unless cleared, the RESETREAS register is cumulative.
+ * If none of the reset sources is flagged, the chip was reset from the on-chip reset generator.
+ * This indicates a power-on-reset or a brown out reset.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ *
+ * @return The mask of reset reasons constructed with @ref nrf_reset_resetreas_mask_t.
+ */
+NRF_STATIC_INLINE uint32_t nrf_reset_resetreas_get(NRF_RESET_Type const * p_reg);
+
+/**
+ * @brief Function for clearing the selected reset reason field.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] mask  The mask constructed from @ref nrf_reset_resetreas_mask_t enumerator values.
+ */
+NRF_STATIC_INLINE void nrf_reset_resetreas_clear(NRF_RESET_Type * p_reg, uint32_t mask);
+
+#if NRF_RESET_HAS_APPLICATION
+/**
+ * @brief Function for setting the force off signal for the Network core.
+ *
+ * A force off will reset the Network core and switch off its power and clocks.
+ *
+ * @param[in] p_reg Pointer to the structure of registers of the peripheral.
+ * @param[in] hold  True if the force off signal is to be held.
+ *                  False if the force off signal is to be released.
+ */
+NRF_STATIC_INLINE void nrf_reset_network_force_off(NRF_RESET_Type * p_reg, bool hold);
+#endif // NRF_RESET_HAS_APPLICATION
+
+#ifndef NRF_DECLARE_ONLY
+
+NRF_STATIC_INLINE uint32_t nrf_reset_resetreas_get(NRF_RESET_Type const * p_reg)
+{
+    return p_reg->RESETREAS;
+}
+
+NRF_STATIC_INLINE void nrf_reset_resetreas_clear(NRF_RESET_Type * p_reg, uint32_t mask)
+{
+    p_reg->RESETREAS = mask;
+}
+
+#if NRF_RESET_HAS_APPLICATION
+NRF_STATIC_INLINE void nrf_reset_network_force_off(NRF_RESET_Type * p_reg, bool hold)
+{
+    p_reg->NETWORK.FORCEOFF = (hold ? RESET_NETWORK_FORCEOFF_FORCEOFF_Hold :
+                                      RESET_NETWORK_FORCEOFF_FORCEOFF_Release);
+}
+#endif // NRF_RESET_HAS_APPLICATION
+
+#endif // NRF_DECLARE_ONLY
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NRF_RESET_H__
diff --git a/platform/ext/target/nordic_nrf/common/core/nrfx/helpers/nrfx_reset_reason.h b/platform/ext/target/nordic_nrf/common/core/nrfx/helpers/nrfx_reset_reason.h
new file mode 100644
index 0000000..7b12be6
--- /dev/null
+++ b/platform/ext/target/nordic_nrf/common/core/nrfx/helpers/nrfx_reset_reason.h
@@ -0,0 +1,158 @@
+/*
+ * Copyright (c) 2020, 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 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 the copyright holder 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.
+ */
+
+#ifndef NRFX_RESET_REASON_H
+#define NRFX_RESET_REASON_H
+
+#include <nrfx.h>
+#include <hal/nrf_power.h>
+
+#if !NRF_POWER_HAS_RESETREAS
+#include <hal/nrf_reset.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup nrfx_reset_reason Generic Reset Reason layer
+ * @{
+ * @ingroup nrfx
+ * @ingroup nrf_power
+ * @ingroup nrf_reset
+ *
+ * @brief Helper layer that provides a uniform way of checking the reset reason.
+ */
+
+/** @brief Reset reason bit masks. */
+typedef enum
+{
+#if !NRF_POWER_HAS_RESETREAS || defined(__NRFX_DOXYGEN__)
+    NRFX_RESET_REASON_RESETPIN_MASK  = RESET_RESETREAS_RESETPIN_Msk,
+    /**< Reset from pin-reset detected. */
+    NRFX_RESET_REASON_DOG0_MASK      = RESET_RESETREAS_DOG0_Msk,
+    /**< Reset from watchdog/application watchdong timer 0 detected. */
+    NRFX_RESET_REASON_DOG_MASK       = NRFX_RESET_REASON_DOG0_MASK,
+    /**< Reset from watchdog/application watchdong timer 0 detected. */
+    NRFX_RESET_REASON_CTRLAP_MASK    = RESET_RESETREAS_CTRLAP_Msk,
+    /**< Reset from application CTRL-AP detected. */
+    NRFX_RESETREAS_SREQ_MASK         = RESET_RESETREAS_SREQ_Msk,
+    /**< Reset from soft reset/application soft reset detected. */
+    NRFX_RESET_REASON_LOCKUP_MASK    = RESET_RESETREAS_LOCKUP_Msk,
+    /**< Reset from CPU lockup/application CPU lockup detected. */
+    NRFX_RESET_REASON_OFF_MASK       = RESET_RESETREAS_OFF_Msk,
+    /**< Reset due to wakeup from System OFF mode when wakeup is triggered by DETECT signal from
+     *   GPIO. */
+    NRFX_RESET_REASON_LPCOMP_MASK    = RESET_RESETREAS_LPCOMP_Msk,
+    /**< Reset due to wakeup from System OFF mode when wakeup is triggered by ANADETECT signal from
+     *   LPCOMP. */
+    NRFX_RESET_REASON_DIF_MASK       = RESET_RESETREAS_DIF_Msk,
+    /**< Reset due to wakeup from System OFF mode when wakeup is triggered by entering the debug
+     *   interface mode. */
+#if NRF_RESET_HAS_NETWORK
+    NRFX_RESET_REASON_LSREQ_MASK     = RESET_RESETREAS_LSREQ_Msk,
+    /**< Reset from network soft reset detected. */
+    NRFX_RESET_REASON_LLOCKUP_MASK   = RESET_RESETREAS_LLOCKUP_Msk,
+    /**< Reset from network CPU lockup detected. */
+    NRFX_RESET_REASON_LDOG_MASK      = RESET_RESETREAS_LDOG_Msk,
+    /**< Reset from network watchdog timer detected. */
+    NRFX_RESET_REASON_MFORCEOFF_MASK = RESET_RESETREAS_MFORCEOFF_Msk,
+    /**< Force off reset from application core detected. */
+#endif // NRF_RESET_HAS_NETWORK
+    NRFX_RESET_REASON_NFC_MASK       = RESET_RESETREAS_NFC_Msk,
+    /**< Reset after wakeup from System OFF mode due to NRF field being detected. */
+    NRFX_RESET_REASON_DOG1_MASK      = RESET_RESETREAS_DOG1_Msk,
+    /**< Reset from application watchdog timer 1 detected. */
+    NRFX_RESET_REASON_VBUS_MASK      = RESET_RESETREAS_VBUS_Msk,
+    /**< Reset after wakeup from System OFF mode due to VBUS rising into valid range. */
+#if NRF_RESET_HAS_NETWORK
+    NRFX_RESET_REASON_LCTRLAP_MASK   = RESET_RESETREAS_LCTRLAP_Msk,
+    /**< Reset from network CTRL-AP detected. */
+#endif // NRF_RESET_HAS_NETWORK
+#else
+    NRFX_RESET_REASON_RESETPIN_MASK  = POWER_RESETREAS_RESETPIN_Msk,
+    NRFX_RESET_REASON_DOG_MASK       = POWER_RESETREAS_DOG_Msk,
+    NRFX_RESET_REASON_SREQ_MASK      = POWER_RESETREAS_SREQ_Msk ,
+    NRFX_RESET_REASON_LOCKUP_MASK    = POWER_RESETREAS_LOCKUP_Msk,
+    NRFX_RESET_REASON_OFF_MASK       = POWER_RESETREAS_OFF_Msk,
+#if defined(POWER_RESETREAS_LPCOMP_Msk)
+    NRFX_RESET_REASON_LPCOMP_MASK    = POWER_RESETREAS_LPCOMP_Msk,
+#endif
+    NRFX_RESET_REASON_DIF_MASK       = POWER_RESETREAS_DIF_Msk,
+#if defined(POWER_RESETREAS_NFC_Msk)
+    NRFX_RESET_REASON_NFC_MASK       = POWER_RESETREAS_NFC_Msk,
+#endif
+#if defined(POWER_RESETREAS_VBUS_Msk)
+    NRFX_RESET_REASON_VBUS_MASK      = POWER_RESETREAS_VBUS_Msk,
+#endif
+#endif // !NRF_POWER_HAS_RESETREAS || defined(__NRFX_DOXYGEN__)
+} nrfx_reset_reason_mask_t;
+
+/**
+ * @brief Function for getting the reset reason bitmask.
+ *
+ * Unless cleared, the RESETREAS register is cumulative.
+ * If none of the reset sources is flagged, the chip was reset from the on-chip reset generator.
+ * This indicates a power-on-reset or a brown out reset.
+ *
+ * @return Mask of reset reasons constructed from @ref nrfx_reset_reason_mask_t values.
+ */
+__STATIC_INLINE uint32_t nrfx_reset_reason_get(void)
+{
+#if NRF_POWER_HAS_RESETREAS
+    return nrf_power_resetreas_get(NRF_POWER);
+#else
+    return nrf_reset_resetreas_get(NRF_RESET);
+#endif
+}
+
+/**
+ * @brief Function for clearing the selected reset reason fields.
+ *
+ * @param[in] mask Mask constructed from @ref nrfx_reset_reason_mask_t values.
+ */
+__STATIC_INLINE void nrfx_reset_reason_clear(uint32_t mask)
+{
+#if NRF_POWER_HAS_RESETREAS
+    nrf_power_resetreas_clear(NRF_POWER, mask);
+#else
+    nrf_reset_resetreas_clear(NRF_RESET, mask);
+#endif
+}
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NRFX_RESET_REASON_H
diff --git a/platform/ext/target/nordic_nrf/common/core/plat_test.c b/platform/ext/target/nordic_nrf/common/core/plat_test.c
index 037e242..bddd126 100644
--- a/platform/ext/target/nordic_nrf/common/core/plat_test.c
+++ b/platform/ext/target/nordic_nrf/common/core/plat_test.c
@@ -14,16 +14,24 @@
  * limitations under the License.
  */
 
+#include <string.h>
 #include "tfm_plat_test.h"
 #include <stdint.h>
 #include <stdbool.h>
 #include <hal/nrf_gpio.h>
 #include <hal/nrf_timer.h>
+#include <helpers/nrfx_reset_reason.h>
 #include <nrf_board.h>
+#include <region_defs.h>
+#include <tfm_platform_api.h>
+#include <log/tfm_log.h>
 
-#define TIMER_RELOAD_VALUE (16*1024*1024)
+#define TIMER_RELOAD_VALUE (1*1000*1000)
 #define USERLED_MASK       (1UL)
 
+/* Area used by psa-arch-tests to keep state. */
+#define PSA_TEST_SCRATCH_AREA_SIZE (0x400)
+
 static bool initialized = false;
 
 static void gpio_init(void)
@@ -69,6 +77,15 @@
     return USERLED_MASK;
 }
 
+static void timer_init(NRF_TIMER_Type * TIMER, uint32_t ticks)
+{
+    nrf_timer_mode_set(TIMER, NRF_TIMER_MODE_TIMER);
+    nrf_timer_bit_width_set(TIMER, NRF_TIMER_BIT_WIDTH_32);
+    nrf_timer_frequency_set(TIMER, NRF_TIMER_FREQ_1MHz);
+    nrf_timer_cc_set(TIMER, NRF_TIMER_CC_CHANNEL0, ticks);
+    nrf_timer_one_shot_enable(TIMER, NRF_TIMER_CC_CHANNEL0);
+}
+
 static void timer_stop(NRF_TIMER_Type * TIMER)
 {
     nrf_timer_task_trigger(TIMER, NRF_TIMER_TASK_STOP);
@@ -79,11 +96,6 @@
 static void timer_start(NRF_TIMER_Type * TIMER)
 {
     timer_stop(TIMER);
-    nrf_timer_mode_set(TIMER, NRF_TIMER_MODE_TIMER);
-    nrf_timer_bit_width_set(TIMER, NRF_TIMER_BIT_WIDTH_32);
-    nrf_timer_frequency_set(TIMER, NRF_TIMER_FREQ_16MHz);
-    nrf_timer_cc_set(TIMER, NRF_TIMER_CC_CHANNEL0, TIMER_RELOAD_VALUE);
-    nrf_timer_one_shot_enable(TIMER, NRF_TIMER_CC_CHANNEL0);
 
     nrf_timer_task_trigger(TIMER, NRF_TIMER_TASK_CLEAR);
     nrf_timer_int_enable(TIMER, NRF_TIMER_INT_COMPARE0_MASK);
@@ -93,6 +105,7 @@
 
 void tfm_plat_test_secure_timer_start(void)
 {
+    timer_init(NRF_TIMER0, TIMER_RELOAD_VALUE);
     timer_start(NRF_TIMER0);
 }
 
@@ -103,6 +116,7 @@
 
 void tfm_plat_test_non_secure_timer_start(void)
 {
+    timer_init(NRF_TIMER1, TIMER_RELOAD_VALUE);
     timer_start(NRF_TIMER1);
 }
 
@@ -110,3 +124,46 @@
 {
     timer_stop(NRF_TIMER1);
 }
+
+void pal_timer_init_ns(uint32_t ticks)
+{
+    timer_init(NRF_TIMER1, ticks);
+    NVIC_EnableIRQ(TIMER1_IRQn);
+}
+
+void pal_timer_start_ns(void)
+{
+    timer_start(NRF_TIMER1);
+}
+
+void pal_timer_stop_ns(void)
+{
+    timer_stop(NRF_TIMER1);
+}
+
+#if !defined(TFM_ENABLE_IRQ_TEST)
+/* Watchdog timeout handler. */
+void TIMER1_Handler(void)
+{
+    pal_timer_stop_ns();
+    int ret = tfm_platform_system_reset();
+    if (ret) {
+        LOG_MSG("Reset failed: %d\n", ret);
+    }
+}
+#endif
+
+uint32_t pal_nvmem_get_addr(void)
+{
+    static bool psa_scratch_initialized = false;
+    static __ALIGN(4) uint8_t __psa_scratch[PSA_TEST_SCRATCH_AREA_SIZE];
+
+    if (!psa_scratch_initialized && (nrfx_reset_reason_get() == 0)){
+        /* PSA API tests expect this area to be initialized to all 0xFFs after a
+         * power-on reset.
+         */
+        memset(__psa_scratch, 0xFF, PSA_TEST_SCRATCH_AREA_SIZE);
+    }
+    psa_scratch_initialized = true;
+    return (uint32_t)__psa_scratch;
+}