diff options
Diffstat (limited to 'arch/mips/au1000/db1x00/init.c')
-rw-r--r-- | arch/mips/au1000/db1x00/init.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/arch/mips/au1000/db1x00/init.c b/arch/mips/au1000/db1x00/init.c new file mode 100644 index 000000000000..51eee94a5e82 --- /dev/null +++ b/arch/mips/au1000/db1x00/init.c | |||
@@ -0,0 +1,74 @@ | |||
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 | |||
40 | int prom_argc; | ||
41 | char **prom_argv, **prom_envp; | ||
42 | extern void __init prom_init_cmdline(void); | ||
43 | extern char *prom_getenv(char *envname); | ||
44 | |||
45 | const 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 | |||
54 | void __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 | } | ||