text: /************************************************************************************
   * configs/stm3220g-eval/src/up_deselectlcd.c
   * arch/arm/src/board/up_deselectlcd.c
   *
   *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
   *   Authors: Gregory Nutt <gnutt@nuttx.org>
   *            Diego Sanchez <dsanchez@nx-engineering.com>
   *
   * 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 "up_arch.h"
  #include "stm32_fsmc.h"
  #include "stm3220g-internal.h"
  
  #ifdef CONFIG_STM32_FSMC
  
  /************************************************************************************
   * Pre-processor Definitions
   ************************************************************************************/
  
  /************************************************************************************
   * Public Data
   ************************************************************************************/
  
  /************************************************************************************
   * Private Data
   ************************************************************************************/
  
  /************************************************************************************
   * Private Functions
   ************************************************************************************/
  
  /************************************************************************************
   * Public Functions
   ************************************************************************************/
  
  /************************************************************************************
   * Name: stm32_deselectlcd
   *
   * Description:
   *   Disable the LCD
   *
   ************************************************************************************/
  
  void stm32_deselectlcd(void)
  {
    /* Restore registers to their power up settings */
  
    putreg32(0xffffffff, STM32_FSMC_BCR4);
  
    /* Bank1 NOR/SRAM timing register configuration */
  
    putreg32(0x0fffffff, STM32_FSMC_BTR4);
   
    /* Disable AHB clocking to the FSMC */
  
    stm32_disablefsmc();
  }
  
  #endif /* CONFIG_STM32_FSMC */
  
  
  
  