arch/mips/jmr3927/rbhma3100/init.c

   1 /*
   2  * Copyright 2001 MontaVista Software Inc.
   3  * Author: MontaVista Software, Inc.
   4  *              ahennessy@mvista.com
   5  *
   6  * arch/mips/jmr3927/common/init.c
   7  *
   8  * Copyright (C) 2000-2001 Toshiba Corporation
   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/config.h>
  31 #include <linux/init.h>
  32 #include <linux/mm.h>
  33 #include <linux/sched.h>
  34 #include <linux/bootmem.h>
  35
  36 #include <asm/addrspace.h>
  37 #include <asm/bootinfo.h>
  38 #include <asm/mipsregs.h>
  39 #include <asm/jmr3927/jmr3927.h>
  40
  41 int prom_argc;
  42 char **prom_argv, **prom_envp;
  43 extern void  __init prom_init_cmdline(void);
  44 extern char *prom_getenv(char *envname);
  45 unsigned long mips_nofpu = 0;
  46
  47 const char *get_system_type(void)
  48 {
  49         return "Toshiba"
  50 #ifdef CONFIG_TOSHIBA_JMR3927
  51                " JMR_TX3927"
  52 #endif
  53         ;
  54 }
  55
  56 extern void puts(unsigned char *cp);
  57
  58 void __init prom_init(void)
  59 {
  60 #ifdef CONFIG_TOSHIBA_JMR3927
  61         /* CCFG */
  62         if ((tx3927_ccfgptr->ccfg & TX3927_CCFG_TLBOFF) == 0)
  63                 puts("Warning: TX3927 TLB off\n");
  64 #endif
  65         prom_argc = fw_arg0;
  66         prom_argv = (char **) fw_arg1;
  67         prom_envp = (char **) fw_arg2;
  68
  69         mips_machgroup = MACH_GROUP_TOSHIBA;
  70
  71 #ifdef CONFIG_TOSHIBA_JMR3927
  72         mips_machtype = MACH_TOSHIBA_JMR3927;
  73 #endif
  74
  75         prom_init_cmdline();
  76         add_memory_region(0, JMR3927_SDRAM_SIZE, BOOT_MEM_RAM);
  77 }