/*      $NetBSD: boot.c,v 1.7 2014/01/11 14:35:15 tsutsui Exp $ */

/*
* Copyright (c) 1992 OMRON Corporation.
*
* This code is derived from software contributed to Berkeley by
* OMRON Corporation.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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 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.
*
*      @(#)boot.c      8.1 (Berkeley) 6/10/93
*/
/*
* Copyright (c) 1992, 1993
*      The Regents of the University of California.  All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* OMRON Corporation.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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 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.
*
*      @(#)boot.c      8.1 (Berkeley) 6/10/93
*/

/*
* boot.c -- boot program
* by A.Fujita, MAR-01-1992
*/

#include <sys/param.h>
#include <sys/boot_flag.h>
#include <sys/reboot.h>
#include <sys/exec.h>
#include <luna68k/stand/boot/samachdep.h>
#include <luna68k/stand/boot/status.h>
#include <lib/libsa/loadfile.h>

int
boot(int argc, char *argv[])
{
       char *line, *opts;
       int i, howto;
       char c;

       line = NULL;
       howto = 0;
       for (i = 1; i < argc; i++) {
               if (argv[i][0] == '-') {
                       opts = argv[i];
                       while ((c = *++opts) && c != '\0')
                               BOOT_FLAG(c, howto);
               } else if (line == NULL)
                       line = argv[i];
       }
       if (line == NULL)
               line = default_file;

       printf("Booting %s", line);
       if (howto != 0)
               printf(" (howto 0x%x)", howto);
       printf("\n");

       return bootnetbsd(line, howto);
}

int
bootnetbsd(char *line, int howto)
{
       int io;
       u_long marks[MARK_MAX];

       /* Note marks[MARK_START] is passed as an load address offset */
       memset(marks, 0, sizeof(marks));

       io = loadfile(line, marks, LOAD_KERNEL);
       if (io >= 0) {
               int dev = 0, unit = 0, part = 0;
               uint adpt, ctlr, id;
               uint32_t bootdev;

               make_device(line, &dev, &unit, &part, NULL);
               adpt = dev2adpt[dev];
               ctlr = CTLR(unit);
               id   = TARGET(unit);
               bootdev = MAKEBOOTDEV(0, adpt, ctlr, id, part);
#ifdef DEBUG
               printf("entry = 0x%lx\n", marks[MARK_ENTRY]);
               printf("ssym  = 0x%lx\n", marks[MARK_SYM]);
               printf("esym  = 0x%lx\n", marks[MARK_END]);
#endif
               __asm volatile (
                       "movl   %0,%%d7;"
                       "movl   %1,%%d6;"
                       "movl   %2,%%a0;"
                       "jbsr   %%a0@"
                       :
                       : "g" (howto), "g" (bootdev),
                         "g" ((void *)marks[MARK_ENTRY])
                       : "d6", "d7", "a0");
       }
       printf("Booting kernel failed. (%s)\n", strerror(errno));

       return ST_ERROR;
}