text: /****************************************************************************
   * boards/arm/lpc17xx_40xx/open1788/src/lpc17_40_norinitialize.c
   * arch/arm/src/board/lpc17_40_norinitialize.c
   *
   *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
   *   Author: Gregory Nutt <gnutt@nuttx.org>
   *
   * 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 <debug.h>
  
  #include <arch/board/board.h>
  
  #include "up_arch.h"
  #include "up_internal.h"
  
  #include "open1788.h"
  
  #if defined(CONFIG_LPC17_40_EMC) && defined(CONFIG_LPC17_40_EXTNOR)
  
  /****************************************************************************
   * Public Functions
   ****************************************************************************/
  
  /****************************************************************************
   * Name: open1788_nor_initialize
   *
   * Description:
   *   Initialize NOR FLASH
   *
   ****************************************************************************/
  
  void open1788_nor_initialize(void)
  {
    uint32_t regval;
  
    /* Set the memory width and byte lanes */
  
    regval = getreg32(LPC17_40_EMC_STATICCONFIG0);
    regval &= ~EMC_STATICCONFIG_MW_MASK;
    regbal |= (EMC_STATICCONFIG_MW_16BIT | EMC_STATICCONFIG_PB);
    putreg32(regval, LPC17_40_EMC_STATICCONFIG0);
  
    /* Configure timing */
  
    putreg32(2, LPC17_40_EMC_STATICWAITWEN0);
    putreg32(2, LPC17_40_EMC_STATICWAITOEN0);
    putreg32(31, LPC17_40_EMC_STATICWAITRD0);
    putreg32(31, LPC17_40_EMC_STATICWAITPAGE0);
    putreg32(31, LPC17_40_EMC_STATICWAITWR0);
    putreg32(31, LPC17_40_EMC_STATICWAITTURN0);
  
    up_mdelay(10);
  }
  
  #endif /* CONFIG_LPC17_40_EMC && CONFIG_LPC17_40_EXTNOR */
  