xref: /linux/arch/mips/txx9/rbtx4927/prom.c (revision bf61c8840efe60fd8f91446860b63338fb424158)
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 }
42