/*      $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;
}