Home | History | Annotate | Line # | Download | only in vr
bcu_vrip.c revision 1.3 
      1 /*	$NetBSD: bcu_vrip.c,v 1.3 1999/12/16 09:36:19 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 static int vrbcu_match __P((struct device *, struct cfdata *, void *));
     53 static void vrbcu_attach __P((struct device *, struct device *, void *));
     54 
     55 static void vrbcu_write __P((struct vrbcu_softc *, int, unsigned short));
     56 static unsigned short vrbcu_read __P((struct vrbcu_softc *, int));
     57 
     58 char	*vr_cpuname=NULL;
     59 int	vr_major=-1;
     60 int	vr_minor=-1;
     61 int	vr_cpuid=-1;
     62 
     63 struct cfattach vrbcu_ca = {
     64 	sizeof(struct vrbcu_softc), vrbcu_match, vrbcu_attach
     65 };
     66 
     67 struct vrbcu_softc *the_bcu_sc = NULL;
     68 
     69 static inline void
     70 vrbcu_write(sc, port, val)
     71 	struct vrbcu_softc *sc;
     72 	int port;
     73 	unsigned short val;
     74 {
     75 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, port, val);
     76 }
     77 
     78 static inline unsigned short
     79 vrbcu_read(sc, port)
     80 	struct vrbcu_softc *sc;
     81 	int port;
     82 {
     83 	return bus_space_read_2(sc->sc_iot, sc->sc_ioh, port);
     84 }
     85 
     86 static int
     87 vrbcu_match(parent, cf, aux)
     88      struct device *parent;
     89      struct cfdata *cf;
     90      void *aux;
     91 {
     92 	return 2;
     93 }
     94 
     95 static void
     96 vrbcu_attach(parent, self, aux)
     97      struct device *parent;
     98      struct device *self;
     99      void *aux;
    100 {
    101 	struct vrip_attach_args *va = aux;
    102 	struct vrbcu_softc *sc = (struct vrbcu_softc *)self;
    103 
    104 	sc->sc_iot = va->va_iot;
    105 	bus_space_map(sc->sc_iot, va->va_addr, va->va_size,
    106 		0, /* no flags */
    107 		&sc->sc_ioh);
    108 
    109 	printf("\n");
    110 	the_bcu_sc = sc;
    111 }
    112 
    113 static char *cpuname[] = {
    114 	"VR4101",
    115 	"VR4102",
    116 	"VR4111",
    117 	"VR4121",
    118 	"UNKNOWN",
    119 	"UNKNOWN",
    120 	"UNKNOWN",
    121 	"UNKNOWN" };
    122 
    123 int
    124 vrbcu_vrip_getcpuid(void)
    125 {
    126 	volatile u_int16_t *revreg;
    127 
    128 	if (vr_cpuid != -1)
    129 		return vr_cpuid;
    130 
    131 	if (vr_cpuid == -1) {
    132 		revreg = (u_int16_t *)MIPS_PHYS_TO_KSEG1((VRIP_BCU_ADDR+BCUREVID_REG_W));
    133 
    134 		vr_cpuid = *revreg;
    135 		vr_cpuid = (vr_cpuid&BCUREVID_RIDMASK)>>BCUREVID_RIDSHFT;
    136 	}
    137 	return vr_cpuid;
    138 }
    139 
    140 char *
    141 vrbcu_vrip_getcpuname(void)
    142 {
    143 	int cpuid;
    144 
    145 	if (vr_cpuname != NULL)
    146 		return vr_cpuname;
    147 
    148 	cpuid = vrbcu_vrip_getcpuid();
    149 	vr_cpuname = cpuname[cpuid];
    150 	return vr_cpuname;
    151 }
    152 
    153 
    154 int
    155 vrbcu_vrip_getcpumajor(void)
    156 {
    157 	volatile u_int16_t *revreg;
    158 
    159 	if (vr_major != -1)
    160 		return vr_major;
    161 
    162 	revreg = (u_int16_t *)MIPS_PHYS_TO_KSEG1((VRIP_BCU_ADDR+BCUREVID_REG_W));
    163 
    164 	vr_major = *revreg;
    165 	vr_major = (vr_major&BCUREVID_MJREVMASK)>>BCUREVID_MJREVSHFT;
    166 	return vr_major;
    167 }
    168 
    169 int
    170 vrbcu_vrip_getcpuminor(void)
    171 {
    172 	volatile u_int16_t *revreg;
    173 
    174 	if (vr_minor != -1)
    175 		return vr_minor;
    176 
    177 	revreg = (u_int16_t *)MIPS_PHYS_TO_KSEG1((VRIP_BCU_ADDR+BCUREVID_REG_W));
    178 
    179 	vr_minor = *revreg;
    180 	vr_minor = (vr_minor&BCUREVID_MNREVMASK)>>BCUREVID_MNREVSHFT;
    181 	return vr_minor;
    182 }
    183