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bcu_vrip.c revision 1.2 
      1 /*	$NetBSD: bcu_vrip.c,v 1.2 1999/12/09 02:14:00 sato Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999 SATO Kazumi. All rights reserved.
      5  * Copyright (c) 1999 PocketBSD Project. 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  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the PocketBSD project
     18  *	and its contributors.
     19  * 4. Neither the name of the project nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  */
     36 
     37 #include <sys/param.h>
     38 #include <sys/systm.h>
     39 #include <sys/device.h>
     40 #include <sys/reboot.h>
     41 
     42 #include <machine/bus.h>
     43 
     44 #include <mips/cpuregs.h>
     45 
     46 #include <hpcmips/vr/vr.h>
     47 #include <hpcmips/vr/vripvar.h>
     48 #include <hpcmips/vr/vripreg.h>
     49 #include <hpcmips/vr/bcureg.h>
     50 #include <hpcmips/vr/bcuvar.h>
     51 
     52 struct vrbcu_vrip_softc {
     53   struct vrbcu_softc sc_vrbcu;
     54 };
     55 
     56 /* Definition of the mainbus driver. */
     57 static int	vrbcu_vrip_match __P((struct device *,
     58 				      struct cfdata *, void *));
     59 static void	vrbcu_vrip_attach __P((struct device *,
     60 
     61 				       struct device *, void*));
     62 
     63 char	*vr_cpuname=NULL;
     64 int	vr_major=-1;
     65 int	vr_minor=-1;
     66 int	vr_cpuid=-1;
     67 
     68 struct cfattach vrbcu_ca = {
     69 	sizeof(struct vrbcu_vrip_softc), vrbcu_vrip_match, vrbcu_vrip_attach
     70 };
     71 
     72 static int
     73 vrbcu_vrip_match(parent, cf, aux)
     74      struct device *parent;
     75      struct cfdata *cf;
     76      void *aux;
     77 {
     78 	return 2;
     79 }
     80 
     81 static void
     82 vrbcu_vrip_attach(parent, self, aux)
     83      struct device *parent;
     84      struct device *self;
     85      void *aux;
     86 {
     87 	struct vrip_attach_args *va = aux;
     88 	struct vrbcu_vrip_softc *sc = (struct vrbcu_vrip_softc *)self;
     89 
     90 	sc->sc_vrbcu.sc_iot = va->va_iot;
     91 	bus_space_map(sc->sc_vrbcu.sc_iot, va->va_addr, va->va_size,
     92 		0, /* no flags */
     93 		&sc->sc_vrbcu.sc_ioh);
     94 
     95 	printf("\n");
     96 }
     97 
     98 static char *cpuname[] = {
     99 	"VR4101",
    100 	"VR4102",
    101 	"VR4111",
    102 	"VR4121",
    103 	"UNKNOWN",
    104 	"UNKNOWN",
    105 	"UNKNOWN",
    106 	"UNKNOWN" };
    107 
    108 int
    109 vrbcu_vrip_getcpuid(void)
    110 {
    111 	volatile u_int16_t *revreg;
    112 
    113 	if (vr_cpuid != -1)
    114 		return vr_cpuid;
    115 
    116 	if (vr_cpuid == -1) {
    117 		revreg = (u_int16_t *)MIPS_PHYS_TO_KSEG1((VRIP_BCU_ADDR+BCUREVID_REG_W));
    118 
    119 		vr_cpuid = *revreg;
    120 		vr_cpuid = (vr_cpuid&BCUREVID_RIDMASK)>>BCUREVID_RIDSHFT;
    121 	}
    122 	return vr_cpuid;
    123 }
    124 
    125 char *
    126 vrbcu_vrip_getcpuname(void)
    127 {
    128 	int cpuid;
    129 
    130 	if (vr_cpuname != NULL)
    131 		return vr_cpuname;
    132 
    133 	cpuid = vrbcu_vrip_getcpuid();
    134 	vr_cpuname = cpuname[cpuid];
    135 	return vr_cpuname;
    136 }
    137 
    138 
    139 int
    140 vrbcu_vrip_getcpumajor(void)
    141 {
    142 	volatile u_int16_t *revreg;
    143 
    144 	if (vr_major != -1)
    145 		return vr_major;
    146 
    147 	revreg = (u_int16_t *)MIPS_PHYS_TO_KSEG1((VRIP_BCU_ADDR+BCUREVID_REG_W));
    148 
    149 	vr_major = *revreg;
    150 	vr_major = (vr_major&BCUREVID_MJREVMASK)>>BCUREVID_MJREVSHFT;
    151 	return vr_major;
    152 }
    153 
    154 int
    155 vrbcu_vrip_getcpuminor(void)
    156 {
    157 	volatile u_int16_t *revreg;
    158 
    159 	if (vr_minor != -1)
    160 		return vr_minor;
    161 
    162 	revreg = (u_int16_t *)MIPS_PHYS_TO_KSEG1((VRIP_BCU_ADDR+BCUREVID_REG_W));
    163 
    164 	vr_minor = *revreg;
    165 	vr_minor = (vr_minor&BCUREVID_MNREVMASK)>>BCUREVID_MNREVSHFT;
    166 	return vr_minor;
    167 }
    168