release/src-rt-6.x/linux/linux-2.6/arch/mips/philips/pnx8550/stb810/prom_init.c

   1 /*
   2  *  STB810 specific prom routines
   3  *
   4  *  Author: MontaVista Software, Inc.
   5  *          source@mvista.com
   6  *
   7  *  Copyright 2005 MontaVista Software Inc.
   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
  15 #include <linux/init.h>
  16 #include <linux/mm.h>
  17 #include <linux/sched.h>
  18 #include <linux/bootmem.h>
  19 #include <asm/addrspace.h>
  20 #include <asm/bootinfo.h>
  21 #include <linux/string.h>
  22 #include <linux/kernel.h>
  23
  24 int prom_argc;
  25 char **prom_argv, **prom_envp;
  26 extern void  __init prom_init_cmdline(void);
  27 extern char *prom_getenv(char *envname);
  28
  29 const char *get_system_type(void)
  30 {
  31         return "Philips PNX8550/STB810";
  32 }
  33
  34 void __init prom_init(void)
  35 {
  36         unsigned long memsize;
  37
  38         prom_argc = (int) fw_arg0;
  39         prom_argv = (char **) fw_arg1;
  40         prom_envp = (char **) fw_arg2;
  41
  42         prom_init_cmdline();
  43
  44         mips_machgroup = MACH_GROUP_PHILIPS;
  45         mips_machtype = MACH_PHILIPS_STB810;
  46
  47         memsize = 0x08000000; /* Trimedia uses memory above */
  48         add_memory_region(0, memsize, BOOT_MEM_RAM);
  49 }