sys/arch/evbppc/walnut/consinit.c

   1 /*      $NetBSD: consinit.c,v 1.2.2.3 2004/09/21 13:15:07 skrll 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 1.2.2.3 2004/09/21 13:15:07 skrll 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 <machine/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
  66 int comcnmode = CONMODE;
  67 #endif /* NCOM */
  68
  69 #ifdef KGDB
  70 #ifndef KGDB_DEVNAME
  71 #define KGDB_DEVNAME "com"
  72 #endif
  73 char kgdb_devname[] = KGDB_DEVNAME;
  74
  75 #if (NCOM > 1)
  76 #ifndef KGDB_DEVADDR
  77 #define KGDB_DEVADDR  UART1_BASE
  78 #endif
  79 int comkgdbaddr = KGDB_DEVADDR;
  80
  81 #ifndef KGDB_DEVRATE
  82 #define KGDB_DEVRATE CONSPEED
  83 #endif
  84 int comkgdbrate = KGDB_DEVRATE;
  85
  86 #ifndef KGDB_DEVMODE
  87 #define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
  88 #endif
  89 int 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  */
 101 void
 102 consinit(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
 128 void
 129 kgdb_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