Home | History | Annotate | Line # | Download | only in ev64260
mainbus.c revision 1.3 
      1 /*	$NetBSD: mainbus.c,v 1.3 2003/03/16 07:07:19 matt Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *      This product includes software developed by Christopher G. Demetriou
     17  *	for the NetBSD Project.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #include "mainbus.h"
     34 #include "pci.h"
     35 #include "opt_multiprocessor.h"
     36 #include "opt_pci.h"
     37 
     38 #include <sys/param.h>
     39 #include <sys/extent.h>
     40 #include <sys/device.h>
     41 #include <sys/malloc.h>
     42 #include <sys/systm.h>
     43 
     44 #include <machine/bus.h>
     45 
     46 #include <dev/pci/pcivar.h>
     47 #include <dev/pci/pciconf.h>
     48 
     49 #include <dev/marvell/gtvar.h>
     50 
     51 #if NCPU == 0
     52 #error	A cpu device is now required
     53 #endif
     54 
     55 struct	mainbus_attach_args {
     56 	const char *mba_busname;
     57 	int mba_unit;
     58 };
     59 
     60 int	mainbus_cfprint(void *, const char *);
     61 int	mainbus_match(struct device *, struct cfdata *, void *);
     62 void	mainbus_attach(struct device *, struct device *, void *);
     63 
     64 CFATTACH_DECL(mainbus, sizeof(struct device),
     65 	mainbus_match, mainbus_attach, NULL, NULL);
     66 
     67 int
     68 mainbus_cfprint(void *aux, const char *pnp)
     69 {
     70 	struct mainbus_attach_args *mba = aux;
     71 
     72 	if (pnp)
     73 		aprint_normal("%s at %s", mba->mba_busname, pnp);
     74 	aprint_normal(" unit %d", mba->mba_unit);
     75 	return (UNCONF);
     76 }
     77 
     78 
     79 /*
     80  * Probe for the mainbus; always succeeds.
     81  */
     82 int
     83 mainbus_match(struct device *parent, struct cfdata *match, void *aux)
     84 {
     85 	return 1;
     86 }
     87 
     88 /*
     89  * Attach the mainbus.
     90  */
     91 void
     92 mainbus_attach(struct device *parent, struct device *self, void *aux)
     93 {
     94 	struct mainbus_attach_args mba;
     95 
     96 	printf("\n");
     97 
     98 	memset(&mba, 0, sizeof(mba));
     99 
    100 	/*
    101 	 * Always find the CPU
    102 	 */
    103 	mba.mba_busname = "cpu";
    104 	mba.mba_unit = 0;
    105 	config_found(self, &mba, mainbus_cfprint);
    106 
    107 #ifdef MULTIPROCESSOR
    108 	/*
    109 	 * Try for a second one...
    110 	 */
    111 	mba.mba_busname = "cpu";
    112 	mba.mba_unit = 1;
    113 	config_found(self, &mba, mainbus_cfprint);
    114 #endif
    115 
    116 	/*
    117 	 * Now try to configure the Discovery
    118 	 */
    119 	mba.mba_busname = "gt";
    120 	mba.mba_unit = 0;
    121 	config_found(self, &mba, mainbus_cfprint);
    122 }
    123 
    124 static int	cpu_match(struct device *, struct cfdata *, void *);
    125 static void	cpu_attach(struct device *, struct device *, void *);
    126 
    127 CFATTACH_DECL(cpu, sizeof(struct device), cpu_match, cpu_attach, NULL, NULL);
    128 
    129 extern struct cfdriver cpu_cd;
    130 
    131 int
    132 cpu_match(struct device *parent, struct cfdata *cf, void *aux)
    133 {
    134 	struct mainbus_attach_args *mba = aux;
    135 
    136 	if (strcmp(mba->mba_busname, cpu_cd.cd_name) != 0)
    137 		return 0;
    138 
    139 	if (cpu_info[0].ci_dev != NULL)
    140 		return 0;
    141 
    142 	return 1;
    143 }
    144 
    145 void
    146 cpu_attach(struct device *parent, struct device *self, void *aux)
    147 {
    148 	(void) cpu_attach_common(self, 0);
    149 }
    150