1 /*
2 *
3 * BRIEF MODULE DESCRIPTION
4 * PB1000 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
31 #include <linux/init.h>
32 #include <linux/mm.h>
33 #include <linux/sched.h>
34 #include <linux/bootmem.h>
35 #include <asm/addrspace.h>
36 #include <asm/bootinfo.h>
37 #include <linux/config.h>
38 #include <linux/string.h>
39 #include <linux/kernel.h>
40 #include <linux/sched.h>
41
42 int prom_argc;
43 char **prom_argv, **prom_envp;
44 extern void __init prom_init_cmdline(void);
45 extern char *prom_getenv(char *envname);
46
get_system_type(void)47 const char *get_system_type(void)
48 {
49 #ifdef CONFIG_MIPS_BOSPORUS
50 return "Alchemy Bosporus Gateway Reference";
51 #else
52 return "Alchemy Db1x00";
53 #endif
54 }
55
prom_init(int argc,char ** argv,char ** envp,int * prom_vec)56 int __init prom_init(int argc, char **argv, char **envp, int *prom_vec)
57 {
58 unsigned char *memsize_str;
59 unsigned long memsize;
60
61 prom_argc = argc;
62 prom_argv = argv;
63 prom_envp = envp;
64
65 mips_machgroup = MACH_GROUP_ALCHEMY;
66 mips_machtype = MACH_DB1000; /* set the platform # */
67 prom_init_cmdline();
68
69 memsize_str = prom_getenv("memsize");
70 if (!memsize_str) {
71 memsize = 0x04000000;
72 } else {
73 memsize = simple_strtol(memsize_str, NULL, 0);
74 }
75 add_memory_region(0, memsize, BOOT_MEM_RAM);
76 return 0;
77 }
78