blob: 6131b56f41b54fbc99a6fc6b48a2b0110c89c30e [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 *
3 * BRIEF MODULE DESCRIPTION
4 * Pb1100 board setup
5 *
6 * Copyright 2002 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc.
8 * ppopov@mvista.com or source@mvista.com
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
16 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
17 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
18 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
21 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
22 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * You should have received a copy of the GNU General Public License along
27 * with this program; if not, write to the Free Software Foundation, Inc.,
28 * 675 Mass Ave, Cambridge, MA 02139, USA.
29 */
30#include <linux/init.h>
31#include <linux/mm.h>
32#include <linux/sched.h>
33#include <linux/bootmem.h>
34#include <asm/addrspace.h>
35#include <asm/bootinfo.h>
36#include <linux/string.h>
37#include <linux/kernel.h>
38
39int prom_argc;
40char **prom_argv, **prom_envp;
41extern void __init prom_init_cmdline(void);
42extern char *prom_getenv(char *envname);
43
44const char *get_system_type(void)
45{
46 return "Alchemy Pb1100";
47}
48
49void __init prom_init(void)
50{
51 unsigned char *memsize_str;
52 unsigned long memsize;
53
54 prom_argc = fw_arg0;
55 prom_argv = (char **) fw_arg1;
Yoichi Yuasa08a45932007-05-28 23:13:50 +090056 prom_envp = (char **) fw_arg3;
Linus Torvalds1da177e2005-04-16 15:20:36 -070057
58 mips_machgroup = MACH_GROUP_ALCHEMY;
59 mips_machtype = MACH_PB1100;
60
61 prom_init_cmdline();
62
63 memsize_str = prom_getenv("memsize");
64 if (!memsize_str)
65 memsize = 0x04000000;
66 else
67 memsize = simple_strtol(memsize_str, NULL, 0);
68
69 add_memory_region(0, memsize, BOOT_MEM_RAM);
70}