autoconf.h revision 1.32 1 /* $NetBSD: autoconf.h,v 1.32 2000/01/11 13:00:36 pk Exp $ */
2
3 /*-
4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Paul Kranenburg.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39 /*
40 * Copyright (c) 1992, 1993
41 * The Regents of the University of California. All rights reserved.
42 *
43 * This software was developed by the Computer Systems Engineering group
44 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
45 * contributed to Berkeley.
46 *
47 * All advertising materials mentioning features or use of this software
48 * must display the following acknowledgement:
49 * This product includes software developed by the University of
50 * California, Lawrence Berkeley Laboratory.
51 *
52 * Redistribution and use in source and binary forms, with or without
53 * modification, are permitted provided that the following conditions
54 * are met:
55 * 1. Redistributions of source code must retain the above copyright
56 * notice, this list of conditions and the following disclaimer.
57 * 2. Redistributions in binary form must reproduce the above copyright
58 * notice, this list of conditions and the following disclaimer in the
59 * documentation and/or other materials provided with the distribution.
60 * 3. All advertising materials mentioning features or use of this software
61 * must display the following acknowledgement:
62 * This product includes software developed by the University of
63 * California, Berkeley and its contributors.
64 * 4. Neither the name of the University nor the names of its contributors
65 * may be used to endorse or promote products derived from this software
66 * without specific prior written permission.
67 *
68 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
69 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
70 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
71 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
72 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
73 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
74 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
75 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
76 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
77 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
78 * SUCH DAMAGE.
79 *
80 * @(#)autoconf.h 8.2 (Berkeley) 9/30/93
81 */
82
83 /*
84 * Autoconfiguration information.
85 */
86
87 #include <machine/bus.h>
88 #include <machine/bsd_openprom.h>
89 #include <machine/promlib.h>
90 #include <dev/sbus/sbusvar.h>
91
92 /*
93 * Most devices are configured according to information kept in
94 * the FORTH PROMs. In particular, we extract the `name', `reg',
95 * and `address' properties of each device attached to the mainbus;
96 * other drives may also use this information. The mainbus itself
97 * (which `is' the CPU, in some sense) gets just the node, with a
98 * fake name ("mainbus").
99 */
100
101 /* Device register space description */
102 struct rom_reg {
103 u_int32_t rr_iospace; /* register space (obio, etc) */
104 u_int32_t rr_paddr; /* register physical address */
105 u_int32_t rr_len; /* register length */
106 };
107
108 /* Interrupt information */
109 struct rom_intr {
110 u_int32_t int_pri; /* priority (IPL) */
111 u_int32_t int_vec; /* vector (always 0?) */
112 };
113
114 /* Address translation accross busses */
115 struct rom_range { /* Only used on v3 PROMs */
116 u_int32_t cspace; /* Client space */
117 u_int32_t coffset; /* Client offset */
118 u_int32_t pspace; /* Parent space */
119 u_int32_t poffset; /* Parent offset */
120 u_int32_t size; /* Size in bytes of this range */
121 };
122
123 /* Attach arguments presented by mainbus_attach() */
124 struct mainbus_attach_args {
125 bus_space_tag_t ma_bustag; /* parent bus tag */
126 bus_dma_tag_t ma_dmatag;
127 char *ma_name; /* PROM node name */
128 int ma_node; /* PROM handle */
129 bus_type_t ma_iospace; /* device I/O space */
130 bus_addr_t ma_paddr; /* register physical address */
131 int ma_size; /* register physical size */
132 int ma_pri; /* priority (IPL) */
133 void *ma_promvaddr; /* PROM virtual address, if any */
134 };
135
136 /* Attach arguments presented to devices by obio_attach() (sun4 only) */
137 struct obio4_attach_args {
138 int oba_placeholder;/* obio/sbus attach args sharing */
139 bus_space_tag_t oba_bustag; /* parent bus tag */
140 bus_dma_tag_t oba_dmatag;
141 bus_addr_t oba_paddr; /* register physical address */
142 int oba_pri; /* interrupt priority (IPL) */
143 };
144
145 union obio_attach_args {
146 /* sun4m obio space is treated like an sbus slot */
147 int uoba_isobio4;
148 struct sbus_attach_args uoba_sbus; /* Sbus view */
149 struct obio4_attach_args uoba_oba4; /* sun4 on-board view */
150 };
151
152 #define obio_bus_map(t, a, o, s, f, v, hp) \
153 bus_space_map2(t, 0, (long)(a) + o, s, f, (vaddr_t)v, hp)
154
155 /* obio specific bus flag */
156 #define OBIO_BUS_MAP_USE_ROM BUS_SPACE_MAP_BUS1
157
158 /* obio bus helper that finds ROM mappings; exported for autoconf.c */
159 int obio_find_rom_map __P((bus_addr_t, bus_type_t, int,
160 bus_space_handle_t *));
161
162
163 /*
164 * The matchbyname function is useful in drivers that are matched
165 * by romaux name, i.e., all `mainbus attached' devices. It expects
166 * its aux pointer to point to a pointer to the name (the address of
167 * a romaux structure suffices, for instance). (OBSOLETE)
168 */
169 struct device;
170 struct cfdata;
171 int matchbyname __P((struct device *, struct cfdata *cf, void *aux));
172
173 /*
174 * `clockfreq' produces a printable representation of a clock frequency
175 * (this is just a frill).
176 */
177 char *clockfreq __P((int freq));
178
179 /*
180 * Memory description arrays. Shared between pmap.c and autoconf.c; no
181 * one else should use this (except maybe mem.c, e.g., if we fix the VM to
182 * handle discontiguous physical memory).
183 */
184 struct memarr {
185 paddr_t addr;
186 psize_t len;
187 };
188 int makememarr(struct memarr *, int max, int which);
189 #define MEMARR_AVAILPHYS 0
190 #define MEMARR_TOTALPHYS 1
191
192 /* Openprom V2 style boot path */
193 struct bootpath {
194 char name[16]; /* name of this node */
195 int val[3]; /* up to three optional values */
196 struct device *dev; /* device that recognised this component */
197 };
198
199 #if 0
200 struct bootpath *bootpath_store __P((int, struct bootpath *));
201 #endif
202 int sd_crazymap __P((int));
203
204 /* Parse a disk string into a dev_t, return device struct pointer */
205 struct device *parsedisk __P((char *, int, int, dev_t *));
206
207 /* Establish a mountroot_hook, for benefit of floppy drive, mostly. */
208 void mountroot_hook_establish __P((void (*) __P((struct device *)),
209 struct device *));
210
211 void bootstrap __P((void));
212 struct device *getdevunit __P((char *, int));
213 void *findzs __P((int));
214 int romgetcursoraddr __P((int **, int **));
215