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      1 /*	$NetBSD: boot.c,v 1.7 2014/01/11 14:35:15 tsutsui Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1992 OMRON Corporation.
      5  *
      6  * This code is derived from software contributed to Berkeley by
      7  * OMRON Corporation.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by the University of
     20  *	California, Berkeley and its contributors.
     21  * 4. Neither the name of the University nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  *	@(#)boot.c	8.1 (Berkeley) 6/10/93
     38  */
     39 /*
     40  * Copyright (c) 1992, 1993
     41  *	The Regents of the University of California.  All rights reserved.
     42  *
     43  * This code is derived from software contributed to Berkeley by
     44  * OMRON Corporation.
     45  *
     46  * Redistribution and use in source and binary forms, with or without
     47  * modification, are permitted provided that the following conditions
     48  * are met:
     49  * 1. Redistributions of source code must retain the above copyright
     50  *    notice, this list of conditions and the following disclaimer.
     51  * 2. Redistributions in binary form must reproduce the above copyright
     52  *    notice, this list of conditions and the following disclaimer in the
     53  *    documentation and/or other materials provided with the distribution.
     54  * 3. Neither the name of the University nor the names of its contributors
     55  *    may be used to endorse or promote products derived from this software
     56  *    without specific prior written permission.
     57  *
     58  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     59  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     60  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     61  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     62  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     63  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     64  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     65  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     66  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     67  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     68  * SUCH DAMAGE.
     69  *
     70  *	@(#)boot.c	8.1 (Berkeley) 6/10/93
     71  */
     72 
     73 /*
     74  * boot.c -- boot program
     75  * by A.Fujita, MAR-01-1992
     76  */
     77 
     78 #include <sys/param.h>
     79 #include <sys/boot_flag.h>
     80 #include <sys/reboot.h>
     81 #include <sys/exec.h>
     82 #include <luna68k/stand/boot/samachdep.h>
     83 #include <luna68k/stand/boot/status.h>
     84 #include <lib/libsa/loadfile.h>
     85 
     86 int
     87 boot(int argc, char *argv[])
     88 {
     89 	char *line, *opts;
     90 	int i, howto;
     91 	char c;
     92 
     93 	line = NULL;
     94 	howto = 0;
     95 	for (i = 1; i < argc; i++) {
     96 		if (argv[i][0] == '-') {
     97 			opts = argv[i];
     98 			while ((c = *++opts) && c != '\0')
     99 				BOOT_FLAG(c, howto);
    100 		} else if (line == NULL)
    101 			line = argv[i];
    102 	}
    103 	if (line == NULL)
    104 		line = default_file;
    105 
    106 	printf("Booting %s", line);
    107 	if (howto != 0)
    108 		printf(" (howto 0x%x)", howto);
    109 	printf("\n");
    110 
    111 	return bootnetbsd(line, howto);
    112 }
    113 
    114 int
    115 bootnetbsd(char *line, int howto)
    116 {
    117 	int io;
    118 	u_long marks[MARK_MAX];
    119 
    120 	/* Note marks[MARK_START] is passed as an load address offset */
    121 	memset(marks, 0, sizeof(marks));
    122 
    123 	io = loadfile(line, marks, LOAD_KERNEL);
    124 	if (io >= 0) {
    125 		int dev = 0, unit = 0, part = 0;
    126 		uint adpt, ctlr, id;
    127 		uint32_t bootdev;
    128 
    129 		make_device(line, &dev, &unit, &part, NULL);
    130 		adpt = dev2adpt[dev];
    131 		ctlr = CTLR(unit);
    132 		id   = TARGET(unit);
    133 		bootdev = MAKEBOOTDEV(0, adpt, ctlr, id, part);
    134 #ifdef DEBUG
    135 		printf("entry = 0x%lx\n", marks[MARK_ENTRY]);
    136 		printf("ssym  = 0x%lx\n", marks[MARK_SYM]);
    137 		printf("esym  = 0x%lx\n", marks[MARK_END]);
    138 #endif
    139 		__asm volatile (
    140 			"movl	%0,%%d7;"
    141 			"movl	%1,%%d6;"
    142 			"movl	%2,%%a0;"
    143 			"jbsr	%%a0@"
    144 			:
    145 			: "g" (howto), "g" (bootdev),
    146 			  "g" ((void *)marks[MARK_ENTRY])
    147 			: "d6", "d7", "a0");
    148 	}
    149 	printf("Booting kernel failed. (%s)\n", strerror(errno));
    150 
    151 	return ST_ERROR;
    152 }
    153