1/* $NetBSD: consinit.c,v 1.7 2005/12/11 12:17:13 christos 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 <sys/cdefs.h> 30__KERNEL_RCSID(0, "$NetBSD: consinit.c,v 1.7 2005/12/11 12:17:13 christos Exp $"); 31 32#include "opt_kgdb.h" 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/device.h> 37#include <sys/bus.h> 38 39#include <powerpc/ibm4xx/ibm405gp.h> 40#include <powerpc/ibm4xx/dev/opbvar.h> 41 42#include "com.h" 43#if (NCOM > 0) 44#include <sys/termios.h> 45#include <dev/ic/comreg.h> 46#include <dev/ic/comvar.h> 47#endif 48 49#include <dev/cons.h> 50 51#ifndef CONSDEVNAME 52#define CONSDEVNAME "com" 53#endif 54 55#if (NCOM > 0) 56#ifndef CONADDR 57#define CONADDR IBM405GP_UART0_BASE 58#endif 59#ifndef CONSPEED 60#define CONSPEED B9600 /* */ 61// #define CONSPEED B115200 /* 9600 is too slow for my taste */ 62#endif 63#ifndef CONMODE 64#define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 65#endif 66int comcnmode = CONMODE; 67#endif /* NCOM */ 68 69#ifdef KGDB 70#ifndef KGDB_DEVNAME 71#define KGDB_DEVNAME "com" 72#endif 73char kgdb_devname[] = KGDB_DEVNAME; 74 75#if (NCOM > 1) 76#ifndef KGDB_DEVADDR 77#define KGDB_DEVADDR UART1_BASE 78#endif 79int comkgdbaddr = KGDB_DEVADDR; 80 81#ifndef KGDB_DEVRATE 82#define KGDB_DEVRATE CONSPEED 83#endif 84int comkgdbrate = KGDB_DEVRATE; 85 86#ifndef KGDB_DEVMODE 87#define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 88#endif 89int comkgdbmode = KGDB_DEVMODE; 90 91#endif /* NCOM */ 92 93#endif /* KGDB */ 94 95/* 96 * consinit: 97 * initialize the system console. 98 * XXX - shouldn't deal with this initted thing, but then, 99 * it shouldn't be called from initppc either. 100 */ 101void 102consinit(void) 103{ 104 static int initted = 0; 105#if (NCOM > 0) 106 bus_space_tag_t tag; 107#endif 108 109 if (initted) 110 return; 111 initted = 1; 112 113#if (NCOM > 0) 114 /* We *know* the com-console attaches to opb */ 115 tag = opb_get_bus_space_tag(); 116 117 if (comcnattach(tag, CONADDR, CONSPEED, COM_FREQ * 6, 118 COM_TYPE_NORMAL, comcnmode)) 119 panic("can't init serial console @%x", CONADDR); 120 else 121 return; 122#endif 123 panic("console device missing -- serial console not in kernel"); 124 /* Of course, this is moot if there is no console... */ 125} 126 127#ifdef KGDB 128void 129kgdb_port_init(void) 130{ 131#if (NCOM > 0) 132 if(!strcmp(kgdb_devname, "com")) { 133 bus_space_tag_t tag = opb_get_bus_space_tag(); 134 com_kgdb_attach(tag, comkgdbaddr, comkgdbrate, COM_FREQ * 6, 135 COM_TYPE_NORMAL, comkgdbmode); 136 } 137#endif 138} 139#endif 140