1 /* $NetBSD: consinit.c,v 1.2 2003/06/14 17:01:11 thorpej 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 62 int comcnmode = CONMODE; 63 #endif /* NCOM */ 64 65 #ifdef KGDB 66 #ifndef KGDB_DEVNAME 67 #define KGDB_DEVNAME "com" 68 #endif 69 char kgdb_devname[] = KGDB_DEVNAME; 70 71 #if (NCOM > 1) 72 #ifndef KGDB_DEVADDR 73 #define KGDB_DEVADDR UART1_BASE 74 #endif 75 int comkgdbaddr = KGDB_DEVADDR; 76 77 #ifndef KGDB_DEVRATE 78 #define KGDB_DEVRATE CONSPEED 79 #endif 80 int comkgdbrate = KGDB_DEVRATE; 81 82 #ifndef KGDB_DEVMODE 83 #define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 84 #endif 85 int 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 */ 97 void 98 consinit(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 COM_TYPE_NORMAL, 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 123 void 124 kgdb_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 COM_TYPE_NORMAL, comkgdbmode); 131 } 132 #endif 133 } 134 #endif 135