text: /****************************************************************************
   * configs/z16f2800100zcog/src/z16f_boot.c
   *
   *   Copyright (C) 2008, 2014 Gregory Nutt. All rights reserved.
   *   Author: Gregory Nutt <gnutt@nuttx.org>
   *
   * Based upon sample code included with the Zilog ZDS-II toolchain.
   *
   * 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 NuttX 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 OWNER 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.
   *
   ****************************************************************************/
  
  /****************************************************************************
   * Included Files
   ****************************************************************************/
  
  #include <nuttx/config.h>
  
  #include "chip.h"
  
  /****************************************************************************
   * Pre-processor Definitions
   ****************************************************************************/
  
  /****************************************************************************
   * Private Functions
   ****************************************************************************/
  
  /****************************************************************************
   * Name: z16f_gpioinit
   *
   * Description:
   *   Configure board-specific GPIO usage here.  Driver pin configurations
   *   are set in the associated device drivers (such as UART, SPI, I2C,
   *   etc.) and must be preserved.
   *
   ****************************************************************************/
  
  static void z16f_gpioinit(void)
  {
    /* Configure LEDs and Run/Stop switch port */
  
    putreg8(getreg8(Z16F_GPIOA_DD) | 0x87, Z16F_GPIOA_DD);
    putreg8(getreg8(Z16F_GPIOA_OUT) | 0x07, Z16F_GPIOA_OUT);
    putreg8(getreg8(Z16F_GPIOA_DD) & 0xF8, Z16F_GPIOA_DD);
  
    /* Configure rate switch port */
  
    putreg8(getreg8(Z16F_GPIOB_DD) | 0x20, Z16F_GPIOB_DD);
    putreg8(getreg8(Z16F_GPIOB_AFL) | 0x20, Z16F_GPIOB_AFL);
  
  #if 0 /* Not yet */
    putreg8(0x05, Z16F_ADC0_MAX);
    putreg8(0xf5, Z16F_ADC0_CTL);
  #endif
  
    /* Configure Direction switch port */
  
    putreg8(getreg8(Z16F_GPIOC_DD) | 0x01, Z16F_GPIOC_DD);
  }
  
  /****************************************************************************
   * Public Functions
   ****************************************************************************/
  
  void z16f_board_initialize(void)
  {
    z16f_gpioinit();
  }
  