Home | History | Annotate | Line # | Download | only in ev64260
mainbus.c revision 1.4 
      1 /*	$NetBSD: mainbus.c,v 1.4 2003/07/15 01:37:35 lukem 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 <sys/cdefs.h>
     34 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.4 2003/07/15 01:37:35 lukem Exp $");
     35 
     36 #include "mainbus.h"
     37 #include "pci.h"
     38 #include "opt_multiprocessor.h"
     39 #include "opt_pci.h"
     40 
     41 #include <sys/param.h>
     42 #include <sys/extent.h>
     43 #include <sys/device.h>
     44 #include <sys/malloc.h>
     45 #include <sys/systm.h>
     46 
     47 #include <machine/bus.h>
     48 
     49 #include <dev/pci/pcivar.h>
     50 #include <dev/pci/pciconf.h>
     51 
     52 #include <dev/marvell/gtvar.h>
     53 
     54 #if NCPU == 0
     55 #error	A cpu device is now required
     56 #endif
     57 
     58 struct	mainbus_attach_args {
     59 	const char *mba_busname;
     60 	int mba_unit;
     61 };
     62 
     63 int	mainbus_cfprint(void *, const char *);
     64 int	mainbus_match(struct device *, struct cfdata *, void *);
     65 void	mainbus_attach(struct device *, struct device *, void *);
     66 
     67 CFATTACH_DECL(mainbus, sizeof(struct device),
     68 	mainbus_match, mainbus_attach, NULL, NULL);
     69 
     70 int
     71 mainbus_cfprint(void *aux, const char *pnp)
     72 {
     73 	struct mainbus_attach_args *mba = aux;
     74 
     75 	if (pnp)
     76 		aprint_normal("%s at %s", mba->mba_busname, pnp);
     77 	aprint_normal(" unit %d", mba->mba_unit);
     78 	return (UNCONF);
     79 }
     80 
     81 
     82 /*
     83  * Probe for the mainbus; always succeeds.
     84  */
     85 int
     86 mainbus_match(struct device *parent, struct cfdata *match, void *aux)
     87 {
     88 	return 1;
     89 }
     90 
     91 /*
     92  * Attach the mainbus.
     93  */
     94 void
     95 mainbus_attach(struct device *parent, struct device *self, void *aux)
     96 {
     97 	struct mainbus_attach_args mba;
     98 
     99 	printf("\n");
    100 
    101 	memset(&mba, 0, sizeof(mba));
    102 
    103 	/*
    104 	 * Always find the CPU
    105 	 */
    106 	mba.mba_busname = "cpu";
    107 	mba.mba_unit = 0;
    108 	config_found(self, &mba, mainbus_cfprint);
    109 
    110 #ifdef MULTIPROCESSOR
    111 	/*
    112 	 * Try for a second one...
    113 	 */
    114 	mba.mba_busname = "cpu";
    115 	mba.mba_unit = 1;
    116 	config_found(self, &mba, mainbus_cfprint);
    117 #endif
    118 
    119 	/*
    120 	 * Now try to configure the Discovery
    121 	 */
    122 	mba.mba_busname = "gt";
    123 	mba.mba_unit = 0;
    124 	config_found(self, &mba, mainbus_cfprint);
    125 }
    126 
    127 static int	cpu_match(struct device *, struct cfdata *, void *);
    128 static void	cpu_attach(struct device *, struct device *, void *);
    129 
    130 CFATTACH_DECL(cpu, sizeof(struct device), cpu_match, cpu_attach, NULL, NULL);
    131 
    132 extern struct cfdriver cpu_cd;
    133 
    134 int
    135 cpu_match(struct device *parent, struct cfdata *cf, void *aux)
    136 {
    137 	struct mainbus_attach_args *mba = aux;
    138 
    139 	if (strcmp(mba->mba_busname, cpu_cd.cd_name) != 0)
    140 		return 0;
    141 
    142 	if (cpu_info[0].ci_dev != NULL)
    143 		return 0;
    144 
    145 	return 1;
    146 }
    147 
    148 void
    149 cpu_attach(struct device *parent, struct device *self, void *aux)
    150 {
    151 	(void) cpu_attach_common(self, 0);
    152 }
    153