45d426a34e
mips32r2 and mips64r2 (and close relatives) processors. There presently is support for ADMtek ADM5120, A mips 4Kc in a malta board, the RB533 routerboard (based on IDT RC32434) and some preliminary support for sibtye/broadcom designs. Other hardware support will be forthcomcing. This port boots multiuser under gxemul emulating the malta board and also bootstraps on the hardware whose support is forthcoming... Oleksandr Tymoshenko, Wojciech Koszek, Warner Losh, Olivier Houchard, Randall Stewert and others that have contributed to the mips2 and/or mips2-jnpr perforce branches. Juniper contirbuted a generic mips port late in the life cycle of the misp2 branch. Warner Losh merged the mips2 and Juniper code bases, and others list above have worked for the past several months to get to multiuser. In addition, the mips2 work owe a debt to the trail blazing efforts of the original mips branch in perforce done by Juli Mallett.
143 lines
5.0 KiB
C
143 lines
5.0 KiB
C
/*-
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* Copyright (C) 1994 by Rodney W. Grimes, Milwaukie, Oregon 97222
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer as
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* the first lines of this file unmodified.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Rodney W. Grimes.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY RODNEY W. GRIMES ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL RODNEY W. GRIMES BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_BOOTINFO_H_
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#define _MACHINE_BOOTINFO_H_
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/* Only change the version number if you break compatibility. */
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#define BOOTINFO_VERSION 1
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#define N_BIOS_GEOM 8
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#define MIPS_BOOTINFO_MAGIC 0xCDEACDEA
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/* Extended OLV bootinfo struct. The data area includes a list of named
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OIDs and associated data values. The format is:
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NUL-terminated dotted-string name
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2 byte length, in big-endian order
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LENGTH bytes of data
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[...]
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The two magic fields are used to guard against other bootloaders that
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may place other sorts of data here. */
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struct bootinfo_ext {
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#define BOOTINFO_EXT_MAGIC1 0x55aa00ff
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unsigned int magic1;
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unsigned char *data;
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unsigned int size;
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#define BOOTINFO_EXT_MAGIC2 0x32719187
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unsigned int magic2;
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};
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#define BOOTINFO_EXT_MAX_SIZE 16384
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/*
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* A zero bootinfo field often means that there is no info available.
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* Flags are used to indicate the validity of fields where zero is a
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* normal value.
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*/
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struct bootinfo {
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u_int32_t bi_version;
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u_int32_t bi_kernelname; /* represents a char * */
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u_int32_t bi_nfs_diskless; /* struct nfs_diskless * */
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/* End of fields that are always present. */
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#define bi_endcommon bi_n_bios_used
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u_int32_t bi_n_bios_used;
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u_int32_t bi_bios_geom[N_BIOS_GEOM];
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u_int32_t bi_size;
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u_int8_t bi_memsizes_valid;
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u_int8_t bi_bios_dev; /* bootdev BIOS unit number */
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u_int8_t bi_pad[2];
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u_int32_t bi_basemem;
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u_int32_t bi_extmem;
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u_int32_t bi_symtab; /* struct symtab * */
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u_int32_t bi_esymtab; /* struct symtab * */
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/* Items below only from advanced bootloader */
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u_int32_t bi_kernend; /* end of kernel space */
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u_int32_t bi_envp; /* environment */
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u_int32_t bi_modulep; /* preloaded modules */
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};
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#ifdef _KERNEL
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extern struct bootinfo bootinfo;
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#endif
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/*
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* Constants for converting boot-style device number to type,
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* adaptor (uba, mba, etc), unit number and partition number.
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* Type (== major device number) is in the low byte
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* for backward compatibility. Except for that of the "magic
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* number", each mask applies to the shifted value.
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* Format:
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* (4) (4) (4) (4) (8) (8)
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* --------------------------------
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* |MA | AD| CT| UN| PART | TYPE |
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* --------------------------------
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*/
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#define B_ADAPTORSHIFT 24
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#define B_ADAPTORMASK 0x0f
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#define B_ADAPTOR(val) (((val) >> B_ADAPTORSHIFT) & B_ADAPTORMASK)
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#define B_CONTROLLERSHIFT 20
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#define B_CONTROLLERMASK 0xf
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#define B_CONTROLLER(val) (((val)>>B_CONTROLLERSHIFT) & B_CONTROLLERMASK)
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#define B_SLICESHIFT 20
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#define B_SLICEMASK 0xff
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#define B_SLICE(val) (((val)>>B_SLICESHIFT) & B_SLICEMASK)
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#define B_UNITSHIFT 16
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#define B_UNITMASK 0xf
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#define B_UNIT(val) (((val) >> B_UNITSHIFT) & B_UNITMASK)
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#define B_PARTITIONSHIFT 8
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#define B_PARTITIONMASK 0xff
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#define B_PARTITION(val) (((val) >> B_PARTITIONSHIFT) & B_PARTITIONMASK)
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#define B_TYPESHIFT 0
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#define B_TYPEMASK 0xff
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#define B_TYPE(val) (((val) >> B_TYPESHIFT) & B_TYPEMASK)
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#define B_MAGICMASK 0xf0000000
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#define B_DEVMAGIC 0xa0000000
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#define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \
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(((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \
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((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \
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((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC)
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#define BASE_SLICE 2
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#define COMPATIBILITY_SLICE 0
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#define MAX_SLICES 32
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#define WHOLE_DISK_SLICE 1
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#endif /* !_MACHINE_BOOTINFO_H_ */
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