arch/mips/txx9/rbtx4927/prom.c

   1 /*
   2  * rbtx4927 specific prom routines
   3  *
   4  * Author: MontaVista Software, Inc.
   5  *         source@mvista.com
   6  *
   7  * Copyright 2001-2002 MontaVista Software Inc.
   8  *
   9  * Copyright (C) 2004 MontaVista Software Inc.
  10  * Author: Manish Lachwani, mlachwani@mvista.com
  11  *
  12  *  This program is free software; you can redistribute it and/or modify it
  13  *  under the terms of the GNU General Public License as published by the
  14  *  Free Software Foundation; either version 2 of the License, or (at your
  15  *  option) any later version.
  16  *
  17  *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  18  *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  19  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  22  *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  23  *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  24  *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  25  *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  26  *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  *  You should have received a copy of the GNU General Public License along
  29  *  with this program; if not, write to the Free Software Foundation, Inc.,
  30  *  675 Mass Ave, Cambridge, MA 02139, USA.
  31  */
  32 #include <linux/init.h>
  33 #include <asm/bootinfo.h>
  34 #include <asm/txx9/generic.h>
  35 #include <asm/txx9/rbtx4927.h>
  36
  37 void __init rbtx4927_prom_init(void)
  38 {
  39         add_memory_region(0, tx4927_get_mem_size(), BOOT_MEM_RAM);
  40         txx9_sio_putchar_init(TX4927_SIO_REG(0) & 0xfffffffffULL);
  41 }