text: /*
   * This file is part of the MicroPython project, http://micropython.org/
   *
   * The MIT License (MIT)
   *
   * Copyright (c) 2018-2019 Damien P. George
   *
   * 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.
   */
  
  #include <string.h>
  #include "py/mphal.h"
  #include "storage.h"
  
  #if defined(STM32F722xx) || defined(STM32F723xx) || defined(STM32F732xx) || defined(STM32F733xx)
  #define OTP_ADDR (0x1ff079e0)
  #else
  #define OTP_ADDR (0x1ff0f3c0)
  #endif
  #define OTP ((pyb_otp_t*)OTP_ADDR)
  
  typedef struct _pyb_otp_t {
      uint16_t series;
      uint16_t rev;
      uint8_t mac[6];
  } pyb_otp_t;
  
  void mboot_board_early_init(void) {
      // Enable 500mA on WBUS-DIP28
      mp_hal_pin_config(pyb_pin_W23, MP_HAL_PIN_MODE_INPUT, MP_HAL_PIN_PULL_UP, 0);
  }
  
  void board_early_init(void) {
      // Configure EN_3V3 as an output pin, but keep it turned off
      mp_hal_pin_config(pyb_pin_EN_3V3, MP_HAL_PIN_MODE_OUTPUT, MP_HAL_PIN_PULL_NONE, 0);
  
      // Explicitly init SPI2 because it's not enabled as a block device
      spi_bdev_ioctl(&spi_bdev2, BDEV_IOCTL_INIT, (uint32_t)&spiflash2_config);
  }
  
  #if !BUILDING_MBOOT
  
  void board_sleep(int value) {
      mp_spiflash_deepsleep(&spi_bdev.spiflash, value);
      mp_spiflash_deepsleep(&spi_bdev2.spiflash, value);
  }
  
  void mp_hal_get_mac(int idx, uint8_t buf[6]) {
      // Check if OTP region has a valid MAC address, and use it if it does
      if (OTP->series == 0x00d1 && OTP->mac[0] == 'H' && OTP->mac[1] == 'J' && OTP->mac[2] == '0') {
          memcpy(buf, OTP->mac, 6);
          buf[5] += idx;
          return;
      }
  
      // Generate a random locally administered MAC address (LAA)
      mp_hal_generate_laa_mac(idx, buf);
  }
  
  #endif
  