xref: /netbsd-src/sys/arch/hppa/stand/cdboot/cdboot.c (revision b7b7574d3bf8eeb51a1fa3977b59142ec6434a55)
1 /*	$NetBSD: cdboot.c,v 1.1 2014/02/24 07:23:43 skrll Exp $	*/
2 
3 /*-
4  * Copyright (c) 1982, 1986, 1990, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  *
31  *	@(#)boot.c	8.1 (Berkeley) 6/10/93
32  */
33 
34 /*
35  * Copyright (c) 1998-2004 Michael Shalayeff
36  * All rights reserved.
37  *
38  * Redistribution and use in source and binary forms, with or without
39  * modification, are permitted provided that the following conditions
40  * are met:
41  * 1. Redistributions of source code must retain the above copyright
42  *    notice, this list of conditions and the following disclaimer.
43  * 2. Redistributions in binary form must reproduce the above copyright
44  *    notice, this list of conditions and the following disclaimer in the
45  *    documentation and/or other materials provided with the distribution.
46  *
47  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
48  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
49  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
50  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
51  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
52  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
53  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
54  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
55  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
56  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
57  * THE POSSIBILITY OF SUCH DAMAGE.
58  *
59  */
60 
61 #include <sys/param.h>
62 #include <sys/reboot.h>
63 #include <sys/boot_flag.h>
64 
65 #include <arch/hppa/stand/common/libsa.h>
66 #include <lib/libsa/loadfile.h>
67 
68 #include <machine/pdc.h>
69 #include <machine/vmparam.h>
70 
71 #include <arch/hppa/stand/common/dev_hppa.h>
72 
73 /*
74  * Boot program... bits in `howto' determine whether boot stops to
75  * ask for system name.	 Boot device is derived from ROM provided
76  * information.
77  */
78 
79 void boot(dev_t boot_dev);
80 
81 typedef void (*startfuncp)(int, int, int, int, int, int, void *)
82     __attribute__ ((noreturn));
83 
84 void
85 boot(dev_t boot_dev)
86 {
87 	u_long marks[MARK_MAX];
88 	u_long loadaddr = 0;
89 	char path[128];
90 	int fd;
91 
92 	machdep();
93 #ifdef	DEBUGBUG
94 	debug = 1;
95 #endif
96 	devboot(boot_dev, path);
97 
98 	strncpy(path + strlen(path), ":/netbsd", 9);
99 	printf(">> %s, Revision %s\n", bootprog_name, bootprog_rev);
100 	printf(">> Booting %s: ", path);
101 
102 #define	round_to_size(x) \
103 	(((x) + sizeof(u_long) - 1) & ~(sizeof(u_long) - 1))
104 
105 #define	BOOTARG_APIVER 2
106 
107 	marks[MARK_START] = loadaddr;
108 	if ((fd = loadfile(path, marks, LOAD_KERNEL)) == -1)
109 		return;
110 
111 	marks[MARK_END] = round_to_size(marks[MARK_END] - loadaddr);
112 	printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n",
113 	    marks[MARK_ENTRY], marks[MARK_NSYM],
114 	    marks[MARK_SYM], marks[MARK_END]);
115 
116 #ifdef EXEC_DEBUG
117 	if (debug) {
118 		printf("ep=0x%x [", marks[MARK_ENTRY]);
119 		for (i = 0; i < 10240; i++) {
120 			if (!(i % 8)) {
121 				printf("\b\n%p:", &((u_int *)marks[MARK_ENTRY])[i]);
122 				if (getchar() != ' ')
123 					break;
124 			}
125 			printf("%x,", ((int *)marks[MARK_ENTRY])[i]);
126 		}
127 		printf("\b\b ]\n");
128 	}
129 #endif
130 
131 	fcacheall();
132 
133 	__asm("mtctl %r0, %cr17");
134 	__asm("mtctl %r0, %cr17");
135 	/* stack and the gung is ok at this point, so, no need for asm setup */
136 	(*(startfuncp)(marks[MARK_ENTRY])) ((int)pdc, 0, boot_dev, marks[MARK_END],
137 				       BOOTARG_APIVER, 0, NULL);
138 	/* not reached */
139 }
140