NetBSD/sys/arch/arm32/doc/bootoptions

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/* $NetBSD: bootoptions,v 1.3 1998/03/26 20:42:34 mark Exp $ */
/*
* Copyright (c) 1996 Mark Brinicombe.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Mark Brinicombe.
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* RiscBSD kernel project
*
* bootoptions
*
* Description of all available boot options
*
* Created : 02/10/96
*/
This file describes all the boot options available.
RiscPC Boot options
Options for all kernels
nocache Disable all processor caches (*)
nowritebuf Disable processor write buffer (*)
fpaclk2 Clock FPA at half processor clock speed (*)
single Single user mode (*)
kdb KDB (*)
maxproc= Specify the maximum in-core processes (L1 page tables) (*)
ramdisc= Specify ramdisc size in KB (*)
videdram= Specify video DRAM size in KB (*)
nbuf= Specify the number of buffers
nowdreset Skip the wd driver drive reset command
ascpoll Use polling mode rather than interrupt mode for the asc
driver
1996-11-23 06:16:51 +03:00
nbuf= Specify the number of buffers to use.
Options for StrongARM kernels
icache Enable instruction cache
dcache Enable data cache
Special debugging options not for normal use
pmapdebug= Specify pmap debug level (*)
termdebug Enable console debugging (*)
notermcls Console debugging option
Special development options
hydra= Enable specified hydra slave processors
(*) These options have their own fields in the bootloader configuration
window.
RC7500 Boot options
-s Single user mode
-a Prompt for root device
-k KDB
-m video memory size