| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * BRIEF MODULE DESCRIPTION |
| 4 | * PB1550 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 | |
| 39 | int prom_argc; |
| 40 | char **prom_argv, **prom_envp; |
| 41 | extern void __init prom_init_cmdline(void); |
| 42 | extern char *prom_getenv(char *envname); |
| 43 | |
| 44 | const char *get_system_type(void) |
| 45 | { |
| 46 | return "Alchemy Pb1550"; |
| 47 | } |
| 48 | |
| 49 | void __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_PB1550; |
| 60 | |
| 61 | prom_init_cmdline(); |
| 62 | memsize_str = prom_getenv("memsize"); |
| 63 | if (!memsize_str) { |
| 64 | memsize = 0x08000000; |
| 65 | } else { |
| 66 | memsize = simple_strtol(memsize_str, NULL, 0); |
| 67 | } |
| 68 | add_memory_region(0, memsize, BOOT_MEM_RAM); |
| 69 | } |