text: /*
   * (C) Copyright 2004 Texas Insturments
   *
   * (C) Copyright 2002
   * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
   * Marius Groeger <mgroeger@sysgo.de>
   *
   * (C) Copyright 2002
   * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
   *
   * See file CREDITS for list of people who contributed to this
   * project.
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License as
   * published by the Free Software Foundation; either version 2 of
   * the License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
   * MA 02111-1307 USA
   */
  
  /*
   * CPU specific code
   */
  
  #include <common.h>
  #include <command.h>
  #include <s3c6400.h>
  #include <asm/system.h>
  
  static void cache_flush (void);
  
  int cleanup_before_linux (void)
  {
  	/*
  	 * this function is called just before we call linux
  	 * it prepares the processor for linux
  	 *
  	 * we turn off caches etc ...
  	 */
  
  	disable_interrupts ();
  
  	/* turn off I/D-cache */
  	icache_disable();
  	dcache_disable();
  	/* flush I/D-cache */
  	cache_flush();
  
  	return 0;
  }
  
  /* flush I/D-cache */
  static void cache_flush (void)
  {
  	/* invalidate both caches and flush btb */
  	asm ("mcr p15, 0, %0, c7, c7, 0": :"r" (0));
  	/* mem barrier to sync things */
  	asm ("mcr p15, 0, %0, c7, c10, 4": :"r" (0));
  }
  