1 /* $OpenBSD: fhc_central.c,v 1.8 2022/10/16 01:22:39 jsg Exp $ */
2
3 /*
4 * Copyright (c) 2004 Jason L. Wright (jason@thought.net).
5 * 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 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/kernel.h>
32 #include <sys/device.h>
33 #include <sys/conf.h>
34 #include <sys/timeout.h>
35
36 #include <machine/bus.h>
37 #include <machine/autoconf.h>
38 #include <machine/openfirm.h>
39
40 #include <sparc64/dev/centralvar.h>
41 #include <sparc64/dev/fhcreg.h>
42 #include <sparc64/dev/fhcvar.h>
43
44 int fhc_central_match(struct device *, void *, void *);
45 void fhc_central_attach(struct device *, struct device *, void *);
46
47 const struct cfattach fhc_central_ca = {
48 sizeof(struct fhc_softc), fhc_central_match, fhc_central_attach
49 };
50
51 int
fhc_central_match(struct device * parent,void * match,void * aux)52 fhc_central_match(struct device *parent, void *match, void *aux)
53 {
54 struct central_attach_args *ca = aux;
55
56 if (strcmp(ca->ca_name, "fhc") == 0)
57 return (1);
58 return (0);
59 }
60
61 void
fhc_central_attach(struct device * parent,struct device * self,void * aux)62 fhc_central_attach(struct device *parent, struct device *self, void *aux)
63 {
64 struct fhc_softc *sc = (struct fhc_softc *)self;
65 struct central_attach_args *ca = aux;
66 u_int32_t board;
67
68 sc->sc_node = ca->ca_node;
69 sc->sc_bt = ca->ca_bustag;
70 sc->sc_is_central = 1;
71
72 if (central_bus_map(sc->sc_bt, ca->ca_reg[0].cbr_slot,
73 ca->ca_reg[0].cbr_offset, ca->ca_reg[0].cbr_size, 0,
74 &sc->sc_preg)) {
75 printf(": failed to map preg\n");
76 return;
77 }
78
79 if (central_bus_map(sc->sc_bt, ca->ca_reg[1].cbr_slot,
80 ca->ca_reg[1].cbr_offset, ca->ca_reg[1].cbr_size, 0,
81 &sc->sc_ireg)) {
82 printf(": failed to map ireg\n");
83 return;
84 }
85
86 if (central_bus_map(sc->sc_bt, ca->ca_reg[2].cbr_slot,
87 ca->ca_reg[2].cbr_offset, ca->ca_reg[2].cbr_size,
88 BUS_SPACE_MAP_LINEAR, &sc->sc_freg)) {
89 printf(": failed to map freg\n");
90 return;
91 }
92
93 if (central_bus_map(sc->sc_bt, ca->ca_reg[3].cbr_slot,
94 ca->ca_reg[3].cbr_offset, ca->ca_reg[3].cbr_size,
95 BUS_SPACE_MAP_LINEAR, &sc->sc_sreg)) {
96 printf(": failed to map sreg\n");
97 return;
98 }
99
100 if (central_bus_map(sc->sc_bt, ca->ca_reg[4].cbr_slot,
101 ca->ca_reg[4].cbr_offset, ca->ca_reg[4].cbr_size,
102 BUS_SPACE_MAP_LINEAR, &sc->sc_ureg)) {
103 printf(": failed to map ureg\n");
104 return;
105 }
106
107 if (central_bus_map(sc->sc_bt, ca->ca_reg[5].cbr_slot,
108 ca->ca_reg[5].cbr_offset, ca->ca_reg[5].cbr_size,
109 BUS_SPACE_MAP_LINEAR, &sc->sc_treg)) {
110 printf(": failed to map treg\n");
111 return;
112 }
113
114 board = bus_space_read_4(sc->sc_bt, sc->sc_preg, FHC_P_BSR);
115 sc->sc_board = ((board >> 16) & 0x1) | ((board >> 12) & 0xe);
116
117 fhc_attach(sc);
118 return;
119 }
120