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      1 /*	$NetBSD: consinit.c,v 1.3 2011/07/18 17:26:56 dyoung Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2007 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Tim Rightnour
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: consinit.c,v 1.3 2011/07/18 17:26:56 dyoung Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/bus.h>
     38 
     39 #include <machine/bootinfo.h>
     40 #include <machine/intr.h>
     41 
     42 #include <dev/cons.h>
     43 
     44 #include "com.h"
     45 #undef NCOM
     46 #define NCOM 1
     47 #if (NCOM > 0)
     48 #include <sys/termios.h>
     49 #include <dev/ic/comreg.h>
     50 #include <dev/ic/comvar.h>
     51 void comsoft(void);
     52 #endif
     53 
     54 extern void setled(uint32_t);
     55 
     56 #undef COM_FREQ
     57 #define COM_FREQ_PWR 23961600
     58 #define COM_FREQ 8000000
     59 /*
     60  * consinit
     61  * Initialize system console.
     62  */
     63 void
     64 consinit(void)
     65 {
     66 	struct btinfo_console *consinfo;
     67 	static int initted = 0;
     68 
     69 	if (initted)
     70 		return;
     71 	initted = 1;
     72 
     73 	consinfo = (struct btinfo_console *)lookup_bootinfo(BTINFO_CONSOLE);
     74 	if (!consinfo)
     75 		panic("not found console information in bootinfo");
     76 
     77 /* #if (NCOM > 0) */
     78 #if 1
     79 	if (!strcmp(consinfo->devname, "com")) {
     80 		bus_space_tag_t tag = &rs6000_iocc0_io_space_tag;
     81 
     82 		if(comcnattach(tag, consinfo->addr, consinfo->speed, COM_FREQ,
     83 		    COM_TYPE_NORMAL,
     84 		    ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8))) {
     85 			setled(0x77800000);
     86 			panic("can't init serial console");
     87 		}
     88 		setled(0x77700000);
     89 		return;
     90 	}
     91 #endif
     92 	panic("invalid console device %s", consinfo->devname);
     93 }
     94