NetBSD/sys/arch/arm32/doc/bootoptions

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/* $NetBSD: bootoptions,v 1.1 1996/10/12 18:24:43 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
ehbug Work around the EtherH driver attach bug.
ascpoll Use polling mode rather than interrupt mode for the asc
driver
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