FreeBSD/Linux Kernel Cross Reference
sys/mips/adm5120/adm5120_machdep.c

     /*-
      * Copyright (C) 2007 by Oleksandr Tymoshenko. All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
      * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
     * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
     * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     * THE POSSIBILITY OF SUCH DAMAGE.
     *
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: releng/8.0/sys/mips/adm5120/adm5120_machdep.c 185915 2008-12-11 07:00:23Z imp $");
    
    #include "opt_ddb.h"
    
    #include <sys/param.h>
    #include <sys/conf.h>
    #include <sys/kernel.h>
    #include <sys/systm.h>
    #include <sys/imgact.h>
    #include <sys/bio.h>
    #include <sys/buf.h>
    #include <sys/bus.h>
    #include <sys/cpu.h>
    #include <sys/cons.h>
    #include <sys/exec.h>
    #include <sys/ucontext.h>
    #include <sys/proc.h>
    #include <sys/kdb.h>
    #include <sys/ptrace.h>
    #include <sys/reboot.h>
    #include <sys/signalvar.h>
    #include <sys/sysent.h>
    #include <sys/sysproto.h>
    #include <sys/user.h>
    
    #include <vm/vm.h>
    #include <vm/vm_object.h>
    #include <vm/vm_page.h>
    #include <vm/vm_pager.h>
    
    #include <machine/cache.h>
    #include <machine/clock.h>
    #include <machine/cpu.h>
    #include <machine/cpuinfo.h>
    #include <machine/cpufunc.h>
    #include <machine/cpuregs.h>
    #include <machine/hwfunc.h>
    #include <machine/intr_machdep.h>
    #include <machine/locore.h>
    #include <machine/md_var.h>
    #include <machine/pte.h>
    #include <machine/sigframe.h>
    #include <machine/trap.h>
    #include <machine/vmparam.h>
    
    extern int      *edata;
    extern int      *end;
    
    static void
    mips_init(void)
    {
            int i;
    
            printf("entry: mips_init()\n");
    
            bootverbose = 1;
            realmem = btoc(16 << 20);
    
            for (i = 0; i < 10; i++) {
                    phys_avail[i] = 0;
            }
    
            /* phys_avail regions are in bytes */
            phys_avail[0] = MIPS_KSEG0_TO_PHYS((vm_offset_t)&end);
            phys_avail[1] = ctob(realmem);
    
            physmem = realmem;
    
            init_param1();
            init_param2(physmem);
            mips_cpu_init();
            pmap_bootstrap();
           mips_proc0_init();
           mutex_init();
   #ifdef DDB
           kdb_init();
   #endif
   }
   
   void
   platform_halt(void)
   {
   
   }
   
   
   void
   platform_identify(void)
   {
   
   }
   
   void
   platform_reset(void)
   {
   
           __asm __volatile("li    $25, 0xbfc00000");
           __asm __volatile("j     $25");
   }
   
   void
   platform_trap_enter(void)
   {
   
   }
   
   void
   platform_trap_exit(void)
   {
   
   }
   
   void
   platform_start(__register_t a0 __unused, __register_t a1 __unused, 
       __register_t a2 __unused, __register_t a3 __unused)
   {
           vm_offset_t kernend;
           uint64_t platform_counter_freq = 175 * 1000 * 1000;
   
           /* clear the BSS and SBSS segments */
           kernend = round_page((vm_offset_t)&end);
           memset(&edata, 0, kernend - (vm_offset_t)(&edata));
   
           cninit();
           mips_init();
           mips_timer_init_params(platform_counter_freq, 0);
   }

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