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-rw-r--r--arch/mips/au1000/db1x00/init.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/arch/mips/au1000/db1x00/init.c b/arch/mips/au1000/db1x00/init.c
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1/*
2 * BRIEF MODULE DESCRIPTION
3 * PB1000 board setup
4 *
5 * Copyright 2001 MontaVista Software Inc.
6 * Author: MontaVista Software, Inc.
7 * ppopov@mvista.com or source@mvista.com
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 *
14 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
15 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
16 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
17 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
20 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
21 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 * You should have received a copy of the GNU General Public License along
26 * with this program; if not, write to the Free Software Foundation, Inc.,
27 * 675 Mass Ave, Cambridge, MA 02139, USA.
28 */
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/config.h>
37#include <linux/string.h>
38#include <linux/kernel.h>
39
40int prom_argc;
41char **prom_argv, **prom_envp;
42extern void __init prom_init_cmdline(void);
43extern char *prom_getenv(char *envname);
44
45const char *get_system_type(void)
46{
47#ifdef CONFIG_MIPS_BOSPORUS
48 return "Alchemy Bosporus Gateway Reference";
49#else
50 return "Alchemy Db1x00";
51#endif
52}
53
54void __init prom_init(void)
55{
56 unsigned char *memsize_str;
57 unsigned long memsize;
58
59 prom_argc = fw_arg0;
60 prom_argv = (char **) fw_arg1;
61 prom_envp = (char **) fw_arg2;
62
63 mips_machgroup = MACH_GROUP_ALCHEMY;
64 mips_machtype = MACH_DB1000; /* set the platform # */
65
66 prom_init_cmdline();
67
68 memsize_str = prom_getenv("memsize");
69 if (!memsize_str)
70 memsize = 0x04000000;
71 else
72 memsize = simple_strtol(memsize_str, NULL, 0);
73 add_memory_region(0, memsize, BOOT_MEM_RAM);
74}