1 /* $NetBSD: uba_ubi.c,v 1.4 2017/05/22 17:15:45 ragge Exp $ */
2 /*
3 * Copyright (c) 1982, 1986 The Regents of the University of California.
4 * 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. Neither the name of the University nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * @(#)uba.c 7.10 (Berkeley) 12/16/90
31 * @(#)autoconf.c 7.20 (Berkeley) 5/9/91
32 */
33
34 /*
35 * Copyright (c) 1996 Jonathan Stone.
36 * Copyright (c) 1994, 1996 Ludd, University of Lule}, Sweden.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 *
47 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
50 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
57 * SUCH DAMAGE.
58 *
59 * @(#)uba.c 7.10 (Berkeley) 12/16/90
60 * @(#)autoconf.c 7.20 (Berkeley) 5/9/91
61 */
62
63 #include <sys/cdefs.h>
64 __KERNEL_RCSID(0, "$NetBSD: uba_ubi.c,v 1.4 2017/05/22 17:15:45 ragge Exp $");
65
66 #define _VAX_BUS_DMA_PRIVATE
67
68 #include <sys/param.h>
69 #include <sys/systm.h>
70 #include <sys/bus.h>
71 #include <sys/cpu.h>
72 #include <sys/device.h>
73
74 #include <machine/nexus.h>
75 #include <machine/sgmap.h>
76
77 #include <dev/qbus/ubavar.h>
78
79 #include <vax/uba/uba_common.h>
80
81 #include "locators.h"
82
83 /* Some UBI-specific defines */
84 #define UBASIZE ((UBAPAGES + UBAIOPAGES) * VAX_NBPG)
85 #define UMEM730 (0xfc0000)
86 #define UIOPAGE (UMEM730 + (UBAPAGES * VAX_NBPG))
87
88 /*
89 * The DW780, DW750 and DW730 are quite similar to their function from
90 * a programmers point of view. Differencies are number of BDP's
91 * and bus status/command registers, the latter are (partly) IPR's
92 * on 750.
93 */
94 static int dw730_match(device_t, cfdata_t, void *);
95 static void dw730_attach(device_t, device_t, void *);
96 static void dw730_init(struct uba_softc*);
97 #ifdef notyet
98 static void dw730_purge(struct uba_softc *, int);
99 #endif
100
101 CFATTACH_DECL_NEW(uba_ubi, sizeof(struct uba_vsoftc),
102 dw730_match, dw730_attach, NULL, NULL);
103
104 extern struct vax_bus_space vax_mem_bus_space;
105
106 int
dw730_match(device_t parent,cfdata_t cf,void * aux)107 dw730_match(device_t parent, cfdata_t cf, void *aux)
108 {
109 struct sbi_attach_args *sa = (struct sbi_attach_args *)aux;
110
111 if (cf->cf_loc[UBICF_TR] != sa->sa_nexnum &&
112 cf->cf_loc[UBICF_TR] != UBICF_TR_DEFAULT)
113 return 0;
114 /*
115 * The uba type is actually only telling where the uba
116 * space is in nexus space.
117 */
118 if ((sa->sa_type & ~3) != NEX_UBA0)
119 return 0;
120
121 return 1;
122 }
123
124 void
dw730_attach(device_t parent,device_t self,void * aux)125 dw730_attach(device_t parent, device_t self, void *aux)
126 {
127 struct uba_vsoftc *sc = device_private(self);
128 struct sbi_attach_args *sa = aux;
129
130 printf(": DW730\n");
131
132 /*
133 * Fill in bus specific data.
134 */
135 sc->uv_sc.uh_dev = self;
136 sc->uv_sc.uh_ubainit = dw730_init;
137 #ifdef notyet
138 sc->uv_sc.uh_ubapurge = dw730_purge;
139 #endif
140 sc->uv_sc.uh_iot = &vax_mem_bus_space;
141 sc->uv_sc.uh_dmat = &sc->uv_dmat;
142 sc->uv_sc.uh_type = UBA_UBA;
143 sc->uv_sc.uh_nr = sa->sa_type == NEX_UBA1;
144
145 /*
146 * Fill in variables used by the sgmap system.
147 */
148 sc->uv_size = UBAPAGES * VAX_NBPG;
149 sc->uv_uba = (void *)sa->sa_ioh; /* Map registers is in adaptor */
150
151 uba_dma_init(sc);
152 uba_attach(&sc->uv_sc, UIOPAGE);
153 }
154
155 void
dw730_init(struct uba_softc * sc)156 dw730_init(struct uba_softc *sc)
157 {
158 mtpr(0, PR_IUR);
159 DELAY(500000);
160 }
161
162 #ifdef notyet
163 void
dw730_purge(struct uba_softc sc,int bdp)164 dw730_purge(struct uba_softc sc, int bdp)
165 {
166 sc->uh_uba->uba_dpr[bdp] |= UBADPR_PURGE | UBADPR_NXM | UBADPR_UCE;
167 }
168 #endif
169