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/arch/mips/au1000/pb1500/init.c

https://bitbucket.org/evzijst/gittest
C | 69 lines | 34 code | 6 blank | 29 comment | 2 complexity | 0b5877bdc9bdac26804a5a739fcc705e MD5 | raw file
 1/*
 2 *
 3 * BRIEF MODULE DESCRIPTION
 4 *	PB1500 board setup
 5 *
 6 * Copyright 2001 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 Pb1500";
47}
48
49void __init prom_init(void)
50{
51	unsigned char *memsize_str;
52	unsigned long memsize;
53
54	prom_argc = (int) fw_arg0;
55	prom_argv = (char **) fw_arg1;
56	prom_envp = (char **) fw_arg2;
57
58	mips_machgroup = MACH_GROUP_ALCHEMY;
59	mips_machtype = MACH_PB1500;
60
61	prom_init_cmdline();
62	memsize_str = prom_getenv("memsize");
63	if (!memsize_str) {
64		memsize = 0x04000000;
65	} else {
66		memsize = simple_strtol(memsize_str, NULL, 0);
67	}
68	add_memory_region(0, memsize, BOOT_MEM_RAM);
69}