/*
 * This file is part of the MicroPython project, http://micropython.org/
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2026 Andrew Leech
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

// This file is never compiled standalone, it's included directly from
// extmod/machine_mem.c via MICROPY_PY_MACHINE_MEM_BACKUP_INCLUDEFILE.

#include "nrf.h"

// GPREGRET/GPREGRET2 retain only bits [7:0] (POWER_GPREGRET_GPREGRET_Msk = 0xFF).
// UF2/Adafruit bootloaders may overwrite region 0 on entry. nRF51 has no GPREGRET2.
static const mp_obj_array_t machine_mem_backup_regions[] = {
    BACKUP_MV('B', 1, (void *)&NRF_POWER->GPREGRET),
    #if !defined(NRF51)
    BACKUP_MV('B', 1, (void *)&NRF_POWER->GPREGRET2),
    #endif
};
