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1da177e4 LT |
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 | ||
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 | ||
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; | |
42a3b4f2 | 66 | mips_machtype = MACH_DB1000; /* set the platform # */ |
1da177e4 LT |
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 | } |