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autoconf.h revision 1.29
      1 /*	$NetBSD: autoconf.h,v 1.29 1998/09/26 18:20:19 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 <dev/sbus/sbusvar.h>
     90 
     91 /*
     92  * Most devices are configured according to information kept in
     93  * the FORTH PROMs.  In particular, we extract the `name', `reg',
     94  * and `address' properties of each device attached to the mainbus;
     95  * other drives may also use this information.  The mainbus itself
     96  * (which `is' the CPU, in some sense) gets just the node, with a
     97  * fake name ("mainbus").
     98  */
     99 
    100 /* Device register space description */
    101 struct rom_reg {
    102 	u_int32_t	rr_iospace;	/* register space (obio, etc) */
    103 	u_int32_t	rr_paddr;	/* register physical address */
    104 	u_int32_t	rr_len;		/* register length */
    105 };
    106 
    107 /* Interrupt information */
    108 struct rom_intr {
    109 	u_int32_t	int_pri;	/* priority (IPL) */
    110 	u_int32_t	int_vec;	/* vector (always 0?) */
    111 };
    112 
    113 /* Address translation accross busses */
    114 struct rom_range {		/* Only used on v3 PROMs */
    115 	u_int32_t	cspace;		/* Client space */
    116 	u_int32_t	coffset;	/* Client offset */
    117 	u_int32_t	pspace;		/* Parent space */
    118 	u_int32_t	poffset;	/* Parent offset */
    119 	u_int32_t	size;		/* Size in bytes of this range */
    120 };
    121 
    122 /* Attach arguments presented by mainbus_attach() */
    123 struct mainbus_attach_args {
    124 	bus_space_tag_t	ma_bustag;	/* parent bus tag */
    125 	bus_dma_tag_t	ma_dmatag;
    126 	char		*ma_name;	/* PROM node name */
    127 	int		ma_node;	/* PROM handle */
    128 	bus_type_t	ma_iospace;	/* device I/O space */
    129 	bus_addr_t	ma_paddr;	/* register physical address */
    130 	int		ma_size;	/* register physical size */
    131 	int		ma_pri;		/* priority (IPL) */
    132 	void		*ma_promvaddr;	/* PROM virtual address, if any */
    133 	struct bootpath *ma_bp;		/* used for locating boot device */
    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 	struct bootpath *oba_bp;	/* used for locating boot device */
    144 };
    145 
    146 union obio_attach_args {
    147 	/* sun4m obio space is treated like an sbus slot */
    148 	int				uoba_isobio4;
    149 	struct sbus_attach_args		uoba_sbus;	/* Sbus view */
    150 	struct obio4_attach_args	uoba_oba4;	/* sun4 on-board view */
    151 };
    152 
    153 #define obio_bus_map(t, a, o, s, f, v, hp)		\
    154 	bus_space_map2(t, 0, (long)(a) + o, s, f, (vaddr_t)v, hp)
    155 
    156 /* obio specific bus flag */
    157 #define OBIO_BUS_MAP_USE_ROM	BUS_SPACE_MAP_BUS1
    158 
    159 /* obio bus helper that finds ROM mappings; exported for autoconf.c */
    160 int	obio_find_rom_map __P((bus_addr_t, bus_type_t, int,
    161 				bus_space_handle_t *));
    162 
    163 
    164 /*
    165  * The matchbyname function is useful in drivers that are matched
    166  * by romaux name, i.e., all `mainbus attached' devices.  It expects
    167  * its aux pointer to point to a pointer to the name (the address of
    168  * a romaux structure suffices, for instance). (OBSOLETE)
    169  */
    170 struct device;
    171 struct cfdata;
    172 int	matchbyname __P((struct device *, struct cfdata *cf, void *aux));
    173 
    174 /*
    175  * `clockfreq' produces a printable representation of a clock frequency
    176  * (this is just a frill).
    177  */
    178 char	*clockfreq __P((int freq));
    179 
    180 /*
    181  * Memory description arrays.  Shared between pmap.c and autoconf.c; no
    182  * one else should use this (except maybe mem.c, e.g., if we fix the VM to
    183  * handle discontiguous physical memory).
    184  */
    185 struct memarr {
    186 	paddr_t	addr;
    187 	psize_t	len;
    188 };
    189 int	makememarr(struct memarr *, int max, int which);
    190 #define	MEMARR_AVAILPHYS	0
    191 #define	MEMARR_TOTALPHYS	1
    192 
    193 /* Openprom V2 style boot path */
    194 struct bootpath {
    195 	char	name[16];	/* name of this node */
    196 	int	val[3];		/* up to three optional values */
    197 	struct device *dev;	/* device that recognised this component */
    198 };
    199 
    200 struct bootpath	*bootpath_store __P((int, struct bootpath *));
    201 int		sd_crazymap __P((int));
    202 
    203 /* Parse a disk string into a dev_t, return device struct pointer */
    204 struct	device *parsedisk __P((char *, int, int, dev_t *));
    205 
    206 /* Establish a mountroot_hook, for benefit of floppy drive, mostly. */
    207 void	mountroot_hook_establish __P((void (*) __P((struct device *)),
    208 				      struct device *));
    209 
    210 void	configure __P((void));
    211 void	bootstrap __P((void));
    212 struct device *getdevunit __P((char *, int));
    213 void	*findzs __P((int));
    214 int	romgetcursoraddr __P((int **, int **));
    215 #if 0
    216 /* Pass a string to the FORTH interpreter.  May fail silently. */
    217 void	rominterpret __P((char *));
    218 int	firstchild __P((int));
    219 int	nextsibling __P((int));
    220 void	callrom __P((void));
    221 int	findroot __P((void));
    222 int	findnode __P((int, const char *));
    223 int	opennode __P((char *));
    224 int	node_has_property __P((int, const char *));
    225 #endif
    226