main.c revision 84617 
1/*-
2 * Copyright (c) 2000 Benno Rice <benno@jeamland.net>
3 * Copyright (c) 2000 Stephane Potvin <sepotvin@videotron.ca>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD: head/sys/boot/ofw/common/main.c 84617 2001-10-07 13:22:25Z benno $
28 */
29
30#include <stand.h>
31#include "openfirm.h"
32#include "libofw.h"
33#include "bootstrap.h"
34
35struct ofw_devdesc	currdev;	/* our current device */
36struct arch_switch	archsw;		/* MI/MD interface boundary */
37
38extern char end[];
39extern char bootprog_name[];
40extern char bootprog_rev[];
41extern char bootprog_date[];
42extern char bootprog_maker[];
43
44phandle_t	chosen;
45
46#define	HEAP_SIZE	0x40000
47
48void
49init_heap(void)
50{
51	void	*base;
52
53	if ((base = ofw_alloc_heap(HEAP_SIZE)) == (void *)0xffffffff) {
54		printf("Heap memory claim failed!\n");
55		OF_enter();
56	}
57
58	setheap(base, base + (HEAP_SIZE / sizeof(base)));
59}
60
61uint32_t
62memsize(void)
63{
64	ihandle_t	meminstance;
65	phandle_t	memory;
66	struct ofw_reg	reg;
67
68	OF_getprop(chosen, "memory", &meminstance, sizeof(meminstance));
69	memory = OF_instance_to_package(meminstance);
70
71	OF_getprop(memory, "reg", &reg, sizeof(reg));
72
73	return (reg.size);
74}
75
76int
77main(int (*openfirm)(void *))
78{
79	int		i;
80	char		bootpath[64];
81	char		*ch;
82
83	/*
84	 * Initalise the OpenFirmware routines by giving them the entry point.
85	 */
86	OF_init(openfirm);
87
88	chosen = OF_finddevice("/chosen");
89
90	/*
91         * Set up console.
92         */
93	cons_probe();
94
95	/*
96	 * Initialise the heap as early as possible.  Once this is done,
97	 * alloc() is usable. The stack is buried inside us, so this is
98	 * safe.
99	 */
100	init_heap();
101
102	/*
103	 * Initialise the block cache
104	 */
105	bcache_init(32, 512);		/* 16k XXX tune this */
106
107	/*
108	 * March through the device switch probing for things.
109	 */
110	for (i = 0; devsw[i] != NULL; i++)
111		if (devsw[i]->dv_init != NULL)
112			(devsw[i]->dv_init)();
113
114	printf("\n");
115	printf("%s, Revision %s\n", bootprog_name, bootprog_rev);
116	printf("(%s, %s)\n", bootprog_maker, bootprog_date);
117	printf("Memory: %dKB\n", memsize() / 1024);
118
119	OF_getprop(chosen, "bootpath", bootpath, 64);
120	ch = index(bootpath, ':');
121	*ch = '\0';
122	printf("Booted from: %s\n", bootpath);
123
124	printf("\n");
125
126	switch (ofw_devicetype(bootpath)) {
127	case DEVT_DISK:
128		currdev.d_dev = &ofwdisk;
129		currdev.d_type = DEVT_DISK;
130		strncpy(currdev.d_kind.ofwdisk.path, bootpath, 64);
131		currdev.d_kind.ofwdisk.unit = ofwd_getunit(bootpath);
132
133		if (currdev.d_kind.ofwdisk.unit == -1) {
134			printf("Could not locate boot device.\n");
135			OF_exit();
136		}
137
138		break;
139
140	case DEVT_NET:
141		currdev.d_dev = &netdev;
142		currdev.d_type = DEVT_NET;
143		strncpy(currdev.d_kind.netif.path, bootpath, 64);
144		/* XXX Only works when we only look for one net device */
145		currdev.d_kind.netif.unit = 0;
146
147		break;
148
149	case DEVT_NONE:
150	default:
151		printf("\n");
152		printf("Could not establish type of boot device.\n");
153		OF_exit();
154		/* NOTREACHED */
155		break;
156	}
157
158	env_setenv("currdev", EV_VOLATILE, ofw_fmtdev(&currdev),
159	    ofw_setcurrdev, env_nounset);
160	env_setenv("loaddev", EV_VOLATILE, ofw_fmtdev(&currdev), env_noset,
161	    env_nounset);
162	setenv("LINES", "24", 1);		/* optional */
163
164	archsw.arch_getdev = ofw_getdev;
165	archsw.arch_copyin = ofw_copyin;
166	archsw.arch_copyout = ofw_copyout;
167	archsw.arch_readin = ofw_readin;
168	archsw.arch_autoload = ofw_autoload;
169
170	interact();				/* doesn't return */
171
172	OF_exit();
173
174	return 0;
175}
176
177COMMAND_SET(halt, "halt", "halt the system", command_halt);
178
179static int
180command_halt(int argc, char *argv[])
181{
182
183	OF_exit();
184	return (CMD_OK);
185}
186
187COMMAND_SET(memmap, "memmap", "print memory map", command_memmap);
188
189int
190command_memmap(int argc, char **argv)
191{
192
193	ofw_memmap();
194	return (CMD_OK);
195}
196