consinit.c revision 1.1 
1/*	$NetBSD: consinit.c,v 1.1 2002/12/09 12:16:21 scw Exp $	*/
2
3/*
4 * Copyright (c) 1998
5 *	Matthias Drochner.  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 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 */
28
29#include "opt_kgdb.h"
30
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/device.h>
34#include <machine/bus.h>
35
36#include <powerpc/ibm4xx/ibm405gp.h>
37
38#include "com.h"
39#if (NCOM > 0)
40#include <sys/termios.h>
41#include <dev/ic/comreg.h>
42#include <dev/ic/comvar.h>
43#endif
44
45#include <dev/cons.h>
46
47#ifndef CONSDEVNAME
48#define CONSDEVNAME "com"
49#endif
50
51#if (NCOM > 0)
52#ifndef CONADDR
53#define CONADDR IBM405GP_UART0_BASE
54#endif
55#ifndef CONSPEED
56#define CONSPEED B9600	/*  */
57// #define CONSPEED B115200	/* 9600 is too slow for my taste */
58#endif
59#ifndef CONMODE
60#define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
61#endif
62int comcnmode = CONMODE;
63#endif /* NCOM */
64
65#ifdef KGDB
66#ifndef KGDB_DEVNAME
67#define KGDB_DEVNAME "com"
68#endif
69char kgdb_devname[] = KGDB_DEVNAME;
70
71#if (NCOM > 1)
72#ifndef KGDB_DEVADDR
73#define KGDB_DEVADDR  UART1_BASE
74#endif
75int comkgdbaddr = KGDB_DEVADDR;
76
77#ifndef KGDB_DEVRATE
78#define KGDB_DEVRATE CONSPEED
79#endif
80int comkgdbrate = KGDB_DEVRATE;
81
82#ifndef KGDB_DEVMODE
83#define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
84#endif
85int comkgdbmode = KGDB_DEVMODE;
86
87#endif /* NCOM */
88
89#endif /* KGDB */
90
91/*
92 * consinit:
93 * initialize the system console.
94 * XXX - shouldn't deal with this initted thing, but then,
95 * it shouldn't be called from initppc either.
96 */
97void
98consinit(void)
99{
100	static int initted = 0;
101#if (NCOM > 0)
102	bus_space_tag_t tag;
103#endif
104
105	if (initted)
106		return;
107	initted = 1;
108
109#if (NCOM > 0)
110	tag = ibm4xx_make_bus_space_tag(0, 0);
111
112	if (comcnattach(tag, CONADDR, CONSPEED, COM_FREQ*6,
113	    comcnmode))
114		panic("can't init serial console @%x", CONADDR);
115	else
116		return;
117#endif
118	panic("console device missing -- serial console not in kernel");
119	/* Of course, this is moot if there is no console... */
120}
121
122#ifdef KGDB
123void
124kgdb_port_init(void)
125{
126#if (NCOM > 0)
127	if(!strcmp(kgdb_devname, "com")) {
128		bus_space_tag_t tag = ibm4xx_make_bus_space_tag(0, 2);
129		com_kgdb_attach(tag, comkgdbaddr, comkgdbrate, COM_FREQ * 6,
130		    comkgdbmode);
131	}
132#endif
133}
134#endif
135