docs: m68k: convert docs to ReST and rename to *.rst
Convert the m68k kernel-options.txt file to ReST. The conversion is trivial, as the document is already on a format close enough to ReST. Just some small adjustments were needed in order to make it both good for being parsed while keeping it on a good txt shape. At its new index.rst, let's add a :orphan: while this is not linked to the main index.rst file, in order to avoid build warnings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab
Родитель
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Коммит
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@ -118,7 +118,7 @@ parameter is applicable::
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LOOP Loopback device support is enabled.
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M68k M68k architecture is enabled.
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These options have more detailed description inside of
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Documentation/m68k/kernel-options.txt.
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Documentation/m68k/kernel-options.rst.
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MDA MDA console support is enabled.
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MIPS MIPS architecture is enabled.
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MOUSE Appropriate mouse support is enabled.
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|
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@ -0,0 +1,17 @@
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:orphan:
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=================
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m68k Architecture
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=================
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.. toctree::
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:maxdepth: 2
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kernel-options
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.. only:: subproject and html
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Indices
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=======
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* :ref:`genindex`
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@ -1,22 +1,24 @@
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Command Line Options for Linux/m68k
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===================================
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===================================
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Command Line Options for Linux/m68k
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===================================
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Last Update: 2 May 1999
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Linux/m68k version: 2.2.6
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Author: Roman.Hodek@informatik.uni-erlangen.de (Roman Hodek)
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Update: jds@kom.auc.dk (Jes Sorensen) and faq@linux-m68k.org (Chris Lawrence)
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0) Introduction
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===============
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Often I've been asked which command line options the Linux/m68k
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Often I've been asked which command line options the Linux/m68k
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kernel understands, or how the exact syntax for the ... option is, or
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... about the option ... . I hope, this document supplies all the
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answers...
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Note that some options might be outdated, their descriptions being
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Note that some options might be outdated, their descriptions being
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incomplete or missing. Please update the information and send in the
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patches.
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@ -38,11 +40,11 @@ argument contains an '=', it is of class 2, and the definition is put
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into init's environment. All other arguments are passed to init as
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command line options.
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This document describes the valid kernel options for Linux/m68k in
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This document describes the valid kernel options for Linux/m68k in
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the version mentioned at the start of this file. Later revisions may
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add new such options, and some may be missing in older versions.
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In general, the value (the part after the '=') of an option is a
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In general, the value (the part after the '=') of an option is a
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list of values separated by commas. The interpretation of these values
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is up to the driver that "owns" the option. This association of
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options with drivers is also the reason that some are further
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@ -55,21 +57,21 @@ subdivided.
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2.1) root=
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----------
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Syntax: root=/dev/<device>
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or: root=<hex_number>
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:Syntax: root=/dev/<device>
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:or: root=<hex_number>
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This tells the kernel which device it should mount as the root
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filesystem. The device must be a block device with a valid filesystem
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on it.
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The first syntax gives the device by name. These names are converted
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The first syntax gives the device by name. These names are converted
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into a major/minor number internally in the kernel in an unusual way.
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Normally, this "conversion" is done by the device files in /dev, but
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this isn't possible here, because the root filesystem (with /dev)
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isn't mounted yet... So the kernel parses the name itself, with some
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hardcoded name to number mappings. The name must always be a
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combination of two or three letters, followed by a decimal number.
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Valid names are:
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Valid names are::
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/dev/ram: -> 0x0100 (initial ramdisk)
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/dev/hda: -> 0x0300 (first IDE disk)
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@ -81,7 +83,7 @@ Valid names are:
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/dev/sde: -> 0x0840 (fifth SCSI disk)
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/dev/fd : -> 0x0200 (floppy disk)
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The name must be followed by a decimal number, that stands for the
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The name must be followed by a decimal number, that stands for the
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partition number. Internally, the value of the number is just
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added to the device number mentioned in the table above. The
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exceptions are /dev/ram and /dev/fd, where /dev/ram refers to an
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@ -100,12 +102,12 @@ the kernel command line.
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[Strange and maybe uninteresting stuff ON]
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This unusual translation of device names has some strange
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This unusual translation of device names has some strange
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consequences: If, for example, you have a symbolic link from /dev/fd
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to /dev/fd0D720 as an abbreviation for floppy driver #0 in DD format,
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you cannot use this name for specifying the root device, because the
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kernel cannot see this symlink before mounting the root FS and it
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isn't in the table above. If you use it, the root device will not be
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isn't in the table above. If you use it, the root device will not be
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set at all, without an error message. Another example: You cannot use a
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partition on e.g. the sixth SCSI disk as the root filesystem, if you
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want to specify it by name. This is, because only the devices up to
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@ -118,7 +120,7 @@ knowledge that each disk uses 16 minors, and write "root=/dev/sde17"
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[Strange and maybe uninteresting stuff OFF]
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If the device containing your root partition isn't in the table
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If the device containing your root partition isn't in the table
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above, you can also specify it by major and minor numbers. These are
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written in hex, with no prefix and no separator between. E.g., if you
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have a CD with contents appropriate as a root filesystem in the first
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@ -136,6 +138,7 @@ known partition UUID as the starting point. For example,
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if partition 5 of the device has the UUID of
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00112233-4455-6677-8899-AABBCCDDEEFF then partition 3 may be found as
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follows:
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PARTUUID=00112233-4455-6677-8899-AABBCCDDEEFF/PARTNROFF=-2
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Authoritative information can be found in
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@ -145,8 +148,8 @@ Authoritative information can be found in
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2.2) ro, rw
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-----------
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Syntax: ro
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or: rw
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:Syntax: ro
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:or: rw
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These two options tell the kernel whether it should mount the root
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filesystem read-only or read-write. The default is read-only, except
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@ -156,7 +159,7 @@ for ramdisks, which default to read-write.
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2.3) debug
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----------
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Syntax: debug
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:Syntax: debug
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This raises the kernel log level to 10 (the default is 7). This is the
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same level as set by the "dmesg" command, just that the maximum level
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@ -166,7 +169,7 @@ selectable by dmesg is 8.
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2.4) debug=
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-----------
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Syntax: debug=<device>
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:Syntax: debug=<device>
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This option causes certain kernel messages be printed to the selected
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debugging device. This can aid debugging the kernel, since the
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@ -175,7 +178,7 @@ devices are possible depends on the machine type. There are no checks
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for the validity of the device name. If the device isn't implemented,
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nothing happens.
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Messages logged this way are in general stack dumps after kernel
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Messages logged this way are in general stack dumps after kernel
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memory faults or bad kernel traps, and kernel panics. To be exact: all
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messages of level 0 (panic messages) and all messages printed while
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the log level is 8 or more (their level doesn't matter). Before stack
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@ -185,19 +188,27 @@ at least 8 can also be set by the "debug" command line option (see
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Devices possible for Amiga:
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- "ser": built-in serial port; parameters: 9600bps, 8N1
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- "mem": Save the messages to a reserved area in chip mem. After
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- "ser":
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built-in serial port; parameters: 9600bps, 8N1
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- "mem":
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Save the messages to a reserved area in chip mem. After
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rebooting, they can be read under AmigaOS with the tool
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'dmesg'.
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Devices possible for Atari:
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- "ser1": ST-MFP serial port ("Modem1"); parameters: 9600bps, 8N1
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- "ser2": SCC channel B serial port ("Modem2"); parameters: 9600bps, 8N1
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- "ser" : default serial port
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- "ser1":
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ST-MFP serial port ("Modem1"); parameters: 9600bps, 8N1
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- "ser2":
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SCC channel B serial port ("Modem2"); parameters: 9600bps, 8N1
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- "ser" :
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default serial port
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This is "ser2" for a Falcon, and "ser1" for any other machine
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- "midi": The MIDI port; parameters: 31250bps, 8N1
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- "par" : parallel port
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- "midi":
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The MIDI port; parameters: 31250bps, 8N1
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- "par" :
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parallel port
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The printing routine for this implements a timeout for the
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case there's no printer connected (else the kernel would
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lock up). The timeout is not exact, but usually a few
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@ -205,26 +216,29 @@ Devices possible for Atari:
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2.6) ramdisk_size=
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-------------
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------------------
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Syntax: ramdisk_size=<size>
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:Syntax: ramdisk_size=<size>
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This option instructs the kernel to set up a ramdisk of the given
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This option instructs the kernel to set up a ramdisk of the given
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size in KBytes. Do not use this option if the ramdisk contents are
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passed by bootstrap! In this case, the size is selected automatically
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and should not be overwritten.
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The only application is for root filesystems on floppy disks, that
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The only application is for root filesystems on floppy disks, that
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should be loaded into memory. To do that, select the corresponding
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size of the disk as ramdisk size, and set the root device to the disk
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drive (with "root=").
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2.7) swap=
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I can't find any sign of this option in 2.2.6.
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2.8) buff=
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-----------
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I can't find any sign of these options in 2.2.6.
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I can't find any sign of this option in 2.2.6.
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3) General Device Options (Amiga and Atari)
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@ -233,13 +247,13 @@ drive (with "root=").
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3.1) ether=
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-----------
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Syntax: ether=[<irq>[,<base_addr>[,<mem_start>[,<mem_end>]]]],<dev-name>
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:Syntax: ether=[<irq>[,<base_addr>[,<mem_start>[,<mem_end>]]]],<dev-name>
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<dev-name> is the name of a net driver, as specified in
|
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<dev-name> is the name of a net driver, as specified in
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drivers/net/Space.c in the Linux source. Most prominent are eth0, ...
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eth3, sl0, ... sl3, ppp0, ..., ppp3, dummy, and lo.
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|
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The non-ethernet drivers (sl, ppp, dummy, lo) obviously ignore the
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The non-ethernet drivers (sl, ppp, dummy, lo) obviously ignore the
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settings by this options. Also, the existing ethernet drivers for
|
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Linux/m68k (ariadne, a2065, hydra) don't use them because Zorro boards
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are really Plug-'n-Play, so the "ether=" option is useless altogether
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|
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@ -249,9 +263,9 @@ for Linux/m68k.
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3.2) hd=
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--------
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Syntax: hd=<cylinders>,<heads>,<sectors>
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:Syntax: hd=<cylinders>,<heads>,<sectors>
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This option sets the disk geometry of an IDE disk. The first hd=
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This option sets the disk geometry of an IDE disk. The first hd=
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option is for the first IDE disk, the second for the second one.
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(I.e., you can give this option twice.) In most cases, you won't have
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to use this option, since the kernel can obtain the geometry data
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|
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@ -262,9 +276,9 @@ disks.
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3.3) max_scsi_luns=
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-------------------
|
||||
|
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Syntax: max_scsi_luns=<n>
|
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:Syntax: max_scsi_luns=<n>
|
||||
|
||||
Sets the maximum number of LUNs (logical units) of SCSI devices to
|
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Sets the maximum number of LUNs (logical units) of SCSI devices to
|
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be scanned. Valid values for <n> are between 1 and 8. Default is 8 if
|
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"Probe all LUNs on each SCSI device" was selected during the kernel
|
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configuration, else 1.
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|
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@ -273,9 +287,9 @@ configuration, else 1.
|
|||
3.4) st=
|
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--------
|
||||
|
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Syntax: st=<buffer_size>,[<write_thres>,[<max_buffers>]]
|
||||
:Syntax: st=<buffer_size>,[<write_thres>,[<max_buffers>]]
|
||||
|
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Sets several parameters of the SCSI tape driver. <buffer_size> is
|
||||
Sets several parameters of the SCSI tape driver. <buffer_size> is
|
||||
the number of 512-byte buffers reserved for tape operations for each
|
||||
device. <write_thres> sets the number of blocks which must be filled
|
||||
to start an actual write operation to the tape. Maximum value is the
|
||||
|
|
@ -286,9 +300,9 @@ buffers allocated for all tape devices.
|
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3.5) dmasound=
|
||||
--------------
|
||||
|
||||
Syntax: dmasound=[<buffers>,<buffer-size>[,<catch-radius>]]
|
||||
:Syntax: dmasound=[<buffers>,<buffer-size>[,<catch-radius>]]
|
||||
|
||||
This option controls some configurations of the Linux/m68k DMA sound
|
||||
This option controls some configurations of the Linux/m68k DMA sound
|
||||
driver (Amiga and Atari): <buffers> is the number of buffers you want
|
||||
to use (minimum 4, default 4), <buffer-size> is the size of each
|
||||
buffer in kilobytes (minimum 4, default 32) and <catch-radius> says
|
||||
|
|
@ -305,20 +319,22 @@ don't need to expand the sound.
|
|||
4.1) video=
|
||||
-----------
|
||||
|
||||
Syntax: video=<fbname>:<sub-options...>
|
||||
:Syntax: video=<fbname>:<sub-options...>
|
||||
|
||||
The <fbname> parameter specifies the name of the frame buffer,
|
||||
eg. most atari users will want to specify `atafb' here. The
|
||||
eg. most atari users will want to specify `atafb` here. The
|
||||
<sub-options> is a comma-separated list of the sub-options listed
|
||||
below.
|
||||
|
||||
NB: Please notice that this option was renamed from `atavideo' to
|
||||
`video' during the development of the 1.3.x kernels, thus you
|
||||
NB:
|
||||
Please notice that this option was renamed from `atavideo` to
|
||||
`video` during the development of the 1.3.x kernels, thus you
|
||||
might need to update your boot-scripts if upgrading to 2.x from
|
||||
an 1.2.x kernel.
|
||||
|
||||
NBB: The behavior of video= was changed in 2.1.57 so the recommended
|
||||
option is to specify the name of the frame buffer.
|
||||
NBB:
|
||||
The behavior of video= was changed in 2.1.57 so the recommended
|
||||
option is to specify the name of the frame buffer.
|
||||
|
||||
4.1.1) Video Mode
|
||||
-----------------
|
||||
|
|
@ -341,11 +357,11 @@ mode, if the hardware allows. Currently defined names are:
|
|||
- falh2 : 896x608x1, Falcon only
|
||||
- falh16 : 896x608x4, Falcon only
|
||||
|
||||
If no video mode is given on the command line, the kernel tries the
|
||||
If no video mode is given on the command line, the kernel tries the
|
||||
modes names "default<n>" in turn, until one is possible with the
|
||||
hardware in use.
|
||||
|
||||
A video mode setting doesn't make sense, if the external driver is
|
||||
A video mode setting doesn't make sense, if the external driver is
|
||||
activated by a "external:" sub-option.
|
||||
|
||||
4.1.2) inverse
|
||||
|
|
@ -358,17 +374,17 @@ option, you can make the background white.
|
|||
4.1.3) font
|
||||
-----------
|
||||
|
||||
Syntax: font:<fontname>
|
||||
:Syntax: font:<fontname>
|
||||
|
||||
Specify the font to use in text modes. Currently you can choose only
|
||||
between `VGA8x8', `VGA8x16' and `PEARL8x8'. `VGA8x8' is default, if the
|
||||
between `VGA8x8`, `VGA8x16` and `PEARL8x8`. `VGA8x8` is default, if the
|
||||
vertical size of the display is less than 400 pixel rows. Otherwise, the
|
||||
`VGA8x16' font is the default.
|
||||
`VGA8x16` font is the default.
|
||||
|
||||
4.1.4) hwscroll_
|
||||
----------------
|
||||
4.1.4) `hwscroll_`
|
||||
------------------
|
||||
|
||||
Syntax: hwscroll_<n>
|
||||
:Syntax: `hwscroll_<n>`
|
||||
|
||||
The number of additional lines of video memory to reserve for
|
||||
speeding up the scrolling ("hardware scrolling"). Hardware scrolling
|
||||
|
|
@ -378,7 +394,7 @@ possible with plain STs and graphics cards (The former because the
|
|||
base address must be on a 256 byte boundary there, the latter because
|
||||
the kernel doesn't know how to set the base address at all.)
|
||||
|
||||
By default, <n> is set to the number of visible text lines on the
|
||||
By default, <n> is set to the number of visible text lines on the
|
||||
display. Thus, the amount of video memory is doubled, compared to no
|
||||
hardware scrolling. You can turn off the hardware scrolling altogether
|
||||
by setting <n> to 0.
|
||||
|
|
@ -386,31 +402,31 @@ by setting <n> to 0.
|
|||
4.1.5) internal:
|
||||
----------------
|
||||
|
||||
Syntax: internal:<xres>;<yres>[;<xres_max>;<yres_max>;<offset>]
|
||||
:Syntax: internal:<xres>;<yres>[;<xres_max>;<yres_max>;<offset>]
|
||||
|
||||
This option specifies the capabilities of some extended internal video
|
||||
hardware, like e.g. OverScan. <xres> and <yres> give the (extended)
|
||||
dimensions of the screen.
|
||||
|
||||
If your OverScan needs a black border, you have to write the last
|
||||
If your OverScan needs a black border, you have to write the last
|
||||
three arguments of the "internal:". <xres_max> is the maximum line
|
||||
length the hardware allows, <yres_max> the maximum number of lines.
|
||||
<offset> is the offset of the visible part of the screen memory to its
|
||||
physical start, in bytes.
|
||||
|
||||
Often, extended interval video hardware has to be activated somehow.
|
||||
Often, extended interval video hardware has to be activated somehow.
|
||||
For this, see the "sw_*" options below.
|
||||
|
||||
4.1.6) external:
|
||||
----------------
|
||||
|
||||
Syntax:
|
||||
external:<xres>;<yres>;<depth>;<org>;<scrmem>[;<scrlen>[;<vgabase>\
|
||||
[;<colw>[;<coltype>[;<xres_virtual>]]]]]
|
||||
:Syntax:
|
||||
external:<xres>;<yres>;<depth>;<org>;<scrmem>[;<scrlen>[;<vgabase>
|
||||
[;<colw>[;<coltype>[;<xres_virtual>]]]]]
|
||||
|
||||
[I had to break this line...]
|
||||
.. I had to break this line...
|
||||
|
||||
This is probably the most complicated parameter... It specifies that
|
||||
This is probably the most complicated parameter... It specifies that
|
||||
you have some external video hardware (a graphics board), and how to
|
||||
use it under Linux/m68k. The kernel cannot know more about the hardware
|
||||
than you tell it here! The kernel also is unable to set or change any
|
||||
|
|
@ -418,38 +434,44 @@ video modes, since it doesn't know about any board internal. So, you
|
|||
have to switch to that video mode before you start Linux, and cannot
|
||||
switch to another mode once Linux has started.
|
||||
|
||||
The first 3 parameters of this sub-option should be obvious: <xres>,
|
||||
The first 3 parameters of this sub-option should be obvious: <xres>,
|
||||
<yres> and <depth> give the dimensions of the screen and the number of
|
||||
planes (depth). The depth is the logarithm to base 2 of the number
|
||||
of colors possible. (Or, the other way round: The number of colors is
|
||||
2^depth).
|
||||
|
||||
You have to tell the kernel furthermore how the video memory is
|
||||
You have to tell the kernel furthermore how the video memory is
|
||||
organized. This is done by a letter as <org> parameter:
|
||||
|
||||
'n': "normal planes", i.e. one whole plane after another
|
||||
'i': "interleaved planes", i.e. 16 bit of the first plane, than 16 bit
|
||||
'n':
|
||||
"normal planes", i.e. one whole plane after another
|
||||
'i':
|
||||
"interleaved planes", i.e. 16 bit of the first plane, than 16 bit
|
||||
of the next, and so on... This mode is used only with the
|
||||
built-in Atari video modes, I think there is no card that
|
||||
supports this mode.
|
||||
'p': "packed pixels", i.e. <depth> consecutive bits stand for all
|
||||
planes of one pixel; this is the most common mode for 8 planes
|
||||
(256 colors) on graphic cards
|
||||
't': "true color" (more or less packed pixels, but without a color
|
||||
lookup table); usually depth is 24
|
||||
built-in Atari video modes, I think there is no card that
|
||||
supports this mode.
|
||||
'p':
|
||||
"packed pixels", i.e. <depth> consecutive bits stand for all
|
||||
planes of one pixel; this is the most common mode for 8 planes
|
||||
(256 colors) on graphic cards
|
||||
't':
|
||||
"true color" (more or less packed pixels, but without a color
|
||||
lookup table); usually depth is 24
|
||||
|
||||
For monochrome modes (i.e., <depth> is 1), the <org> letter has a
|
||||
different meaning:
|
||||
|
||||
'n': normal colors, i.e. 0=white, 1=black
|
||||
'i': inverted colors, i.e. 0=black, 1=white
|
||||
'n':
|
||||
normal colors, i.e. 0=white, 1=black
|
||||
'i':
|
||||
inverted colors, i.e. 0=black, 1=white
|
||||
|
||||
The next important information about the video hardware is the base
|
||||
The next important information about the video hardware is the base
|
||||
address of the video memory. That is given in the <scrmem> parameter,
|
||||
as a hexadecimal number with a "0x" prefix. You have to find out this
|
||||
address in the documentation of your hardware.
|
||||
|
||||
The next parameter, <scrlen>, tells the kernel about the size of the
|
||||
The next parameter, <scrlen>, tells the kernel about the size of the
|
||||
video memory. If it's missing, the size is calculated from <xres>,
|
||||
<yres>, and <depth>. For now, it is not useful to write a value here.
|
||||
It would be used only for hardware scrolling (which isn't possible
|
||||
|
|
@ -460,7 +482,7 @@ empty, either by ending the "external:" after the video address or by
|
|||
writing two consecutive semicolons, if you want to give a <vgabase>
|
||||
(it is allowed to leave this parameter empty).
|
||||
|
||||
The <vgabase> parameter is optional. If it is not given, the kernel
|
||||
The <vgabase> parameter is optional. If it is not given, the kernel
|
||||
cannot read or write any color registers of the video hardware, and
|
||||
thus you have to set appropriate colors before you start Linux. But if
|
||||
your card is somehow VGA compatible, you can tell the kernel the base
|
||||
|
|
@ -472,18 +494,18 @@ uses the addresses vgabase+0x3c7...vgabase+0x3c9. The <vgabase>
|
|||
parameter is written in hexadecimal with a "0x" prefix, just as
|
||||
<scrmem>.
|
||||
|
||||
<colw> is meaningful only if <vgabase> is specified. It tells the
|
||||
<colw> is meaningful only if <vgabase> is specified. It tells the
|
||||
kernel how wide each of the color register is, i.e. the number of bits
|
||||
per single color (red/green/blue). Default is 6, another quite usual
|
||||
value is 8.
|
||||
|
||||
Also <coltype> is used together with <vgabase>. It tells the kernel
|
||||
Also <coltype> is used together with <vgabase>. It tells the kernel
|
||||
about the color register model of your gfx board. Currently, the types
|
||||
"vga" (which is also the default) and "mv300" (SANG MV300) are
|
||||
implemented.
|
||||
|
||||
Parameter <xres_virtual> is required for ProMST or ET4000 cards where
|
||||
the physical linelength differs from the visible length. With ProMST,
|
||||
Parameter <xres_virtual> is required for ProMST or ET4000 cards where
|
||||
the physical linelength differs from the visible length. With ProMST,
|
||||
xres_virtual must be set to 2048. For ET4000, xres_virtual depends on the
|
||||
initialisation of the video-card.
|
||||
If you're missing a corresponding yres_virtual: the external part is legacy,
|
||||
|
|
@ -499,13 +521,13 @@ currently works only with the ScreenWonder!
|
|||
4.1.8) monitorcap:
|
||||
-------------------
|
||||
|
||||
Syntax: monitorcap:<vmin>;<vmax>;<hmin>;<hmax>
|
||||
:Syntax: monitorcap:<vmin>;<vmax>;<hmin>;<hmax>
|
||||
|
||||
This describes the capabilities of a multisync monitor. Don't use it
|
||||
with a fixed-frequency monitor! For now, only the Falcon frame buffer
|
||||
uses the settings of "monitorcap:".
|
||||
|
||||
<vmin> and <vmax> are the minimum and maximum, resp., vertical frequencies
|
||||
<vmin> and <vmax> are the minimum and maximum, resp., vertical frequencies
|
||||
your monitor can work with, in Hz. <hmin> and <hmax> are the same for
|
||||
the horizontal frequency, in kHz.
|
||||
|
||||
|
|
@ -520,28 +542,28 @@ If this option is given, the framebuffer device doesn't do any video
|
|||
mode calculations and settings on its own. The only Atari fb device
|
||||
that does this currently is the Falcon.
|
||||
|
||||
What you reach with this: Settings for unknown video extensions
|
||||
What you reach with this: Settings for unknown video extensions
|
||||
aren't overridden by the driver, so you can still use the mode found
|
||||
when booting, when the driver doesn't know to set this mode itself.
|
||||
But this also means, that you can't switch video modes anymore...
|
||||
|
||||
An example where you may want to use "keep" is the ScreenBlaster for
|
||||
An example where you may want to use "keep" is the ScreenBlaster for
|
||||
the Falcon.
|
||||
|
||||
|
||||
4.2) atamouse=
|
||||
--------------
|
||||
|
||||
Syntax: atamouse=<x-threshold>,[<y-threshold>]
|
||||
:Syntax: atamouse=<x-threshold>,[<y-threshold>]
|
||||
|
||||
With this option, you can set the mouse movement reporting threshold.
|
||||
With this option, you can set the mouse movement reporting threshold.
|
||||
This is the number of pixels of mouse movement that have to accumulate
|
||||
before the IKBD sends a new mouse packet to the kernel. Higher values
|
||||
reduce the mouse interrupt load and thus reduce the chance of keyboard
|
||||
overruns. Lower values give a slightly faster mouse responses and
|
||||
slightly better mouse tracking.
|
||||
|
||||
You can set the threshold in x and y separately, but usually this is
|
||||
You can set the threshold in x and y separately, but usually this is
|
||||
of little practical use. If there's just one number in the option, it
|
||||
is used for both dimensions. The default value is 2 for both
|
||||
thresholds.
|
||||
|
|
@ -550,7 +572,7 @@ thresholds.
|
|||
4.3) ataflop=
|
||||
-------------
|
||||
|
||||
Syntax: ataflop=<drive type>[,<trackbuffering>[,<steprateA>[,<steprateB>]]]
|
||||
:Syntax: ataflop=<drive type>[,<trackbuffering>[,<steprateA>[,<steprateB>]]]
|
||||
|
||||
The drive type may be 0, 1, or 2, for DD, HD, and ED, resp. This
|
||||
setting affects how many buffers are reserved and which formats are
|
||||
|
|
@ -563,15 +585,15 @@ Syntax: ataflop=<drive type>[,<trackbuffering>[,<steprateA>[,<steprateB>]]]
|
|||
no for the Medusa and yes for all others.
|
||||
|
||||
With the two following parameters, you can change the default
|
||||
steprate used for drive A and B, resp.
|
||||
steprate used for drive A and B, resp.
|
||||
|
||||
|
||||
4.4) atascsi=
|
||||
-------------
|
||||
|
||||
Syntax: atascsi=<can_queue>[,<cmd_per_lun>[,<scat-gat>[,<host-id>[,<tagged>]]]]
|
||||
:Syntax: atascsi=<can_queue>[,<cmd_per_lun>[,<scat-gat>[,<host-id>[,<tagged>]]]]
|
||||
|
||||
This option sets some parameters for the Atari native SCSI driver.
|
||||
This option sets some parameters for the Atari native SCSI driver.
|
||||
Generally, any number of arguments can be omitted from the end. And
|
||||
for each of the numbers, a negative value means "use default". The
|
||||
defaults depend on whether TT-style or Falcon-style SCSI is used.
|
||||
|
|
@ -597,11 +619,14 @@ ignored (others aren't affected).
|
|||
32). Default: 8/1. (Note: Values > 1 seem to cause problems on a
|
||||
Falcon, cause not yet known.)
|
||||
|
||||
The <cmd_per_lun> value at a great part determines the amount of
|
||||
The <cmd_per_lun> value at a great part determines the amount of
|
||||
memory SCSI reserves for itself. The formula is rather
|
||||
complicated, but I can give you some hints:
|
||||
no scatter-gather : cmd_per_lun * 232 bytes
|
||||
full scatter-gather: cmd_per_lun * approx. 17 Kbytes
|
||||
|
||||
no scatter-gather:
|
||||
cmd_per_lun * 232 bytes
|
||||
full scatter-gather:
|
||||
cmd_per_lun * approx. 17 Kbytes
|
||||
|
||||
<scat-gat>:
|
||||
Size of the scatter-gather table, i.e. the number of requests
|
||||
|
|
@ -634,19 +659,23 @@ ignored (others aren't affected).
|
|||
4.5 switches=
|
||||
-------------
|
||||
|
||||
Syntax: switches=<list of switches>
|
||||
:Syntax: switches=<list of switches>
|
||||
|
||||
With this option you can switch some hardware lines that are often
|
||||
With this option you can switch some hardware lines that are often
|
||||
used to enable/disable certain hardware extensions. Examples are
|
||||
OverScan, overclocking, ...
|
||||
|
||||
The <list of switches> is a comma-separated list of the following
|
||||
The <list of switches> is a comma-separated list of the following
|
||||
items:
|
||||
|
||||
ikbd: set RTS of the keyboard ACIA high
|
||||
midi: set RTS of the MIDI ACIA high
|
||||
snd6: set bit 6 of the PSG port A
|
||||
snd7: set bit 6 of the PSG port A
|
||||
ikbd:
|
||||
set RTS of the keyboard ACIA high
|
||||
midi:
|
||||
set RTS of the MIDI ACIA high
|
||||
snd6:
|
||||
set bit 6 of the PSG port A
|
||||
snd7:
|
||||
set bit 6 of the PSG port A
|
||||
|
||||
It doesn't make sense to mention a switch more than once (no
|
||||
difference to only once), but you can give as many switches as you
|
||||
|
|
@ -654,16 +683,16 @@ want to enable different features. The switch lines are set as early
|
|||
as possible during kernel initialization (even before determining the
|
||||
present hardware.)
|
||||
|
||||
All of the items can also be prefixed with "ov_", i.e. "ov_ikbd",
|
||||
"ov_midi", ... These options are meant for switching on an OverScan
|
||||
All of the items can also be prefixed with `ov_`, i.e. `ov_ikbd`,
|
||||
`ov_midi`, ... These options are meant for switching on an OverScan
|
||||
video extension. The difference to the bare option is that the
|
||||
switch-on is done after video initialization, and somehow synchronized
|
||||
to the HBLANK. A speciality is that ov_ikbd and ov_midi are switched
|
||||
off before rebooting, so that OverScan is disabled and TOS boots
|
||||
correctly.
|
||||
|
||||
If you give an option both, with and without the "ov_" prefix, the
|
||||
earlier initialization ("ov_"-less) takes precedence. But the
|
||||
If you give an option both, with and without the `ov_` prefix, the
|
||||
earlier initialization (`ov_`-less) takes precedence. But the
|
||||
switching-off on reset still happens in this case.
|
||||
|
||||
5) Options for Amiga Only:
|
||||
|
|
@ -672,10 +701,10 @@ switching-off on reset still happens in this case.
|
|||
5.1) video=
|
||||
-----------
|
||||
|
||||
Syntax: video=<fbname>:<sub-options...>
|
||||
:Syntax: video=<fbname>:<sub-options...>
|
||||
|
||||
The <fbname> parameter specifies the name of the frame buffer, valid
|
||||
options are `amifb', `cyber', 'virge', `retz3' and `clgen', provided
|
||||
options are `amifb`, `cyber`, 'virge', `retz3` and `clgen`, provided
|
||||
that the respective frame buffer devices have been compiled into the
|
||||
kernel (or compiled as loadable modules). The behavior of the <fbname>
|
||||
option was changed in 2.1.57 so it is now recommended to specify this
|
||||
|
|
@ -697,9 +726,11 @@ predefined video modes are available:
|
|||
NTSC modes:
|
||||
- ntsc : 640x200, 15 kHz, 60 Hz
|
||||
- ntsc-lace : 640x400, 15 kHz, 60 Hz interlaced
|
||||
|
||||
PAL modes:
|
||||
- pal : 640x256, 15 kHz, 50 Hz
|
||||
- pal-lace : 640x512, 15 kHz, 50 Hz interlaced
|
||||
|
||||
ECS modes:
|
||||
- multiscan : 640x480, 29 kHz, 57 Hz
|
||||
- multiscan-lace : 640x960, 29 kHz, 57 Hz interlaced
|
||||
|
|
@ -715,6 +746,7 @@ ECS modes:
|
|||
- dblpal-lace : 640x1024, 27 kHz, 47 Hz interlaced
|
||||
- dblntsc : 640x200, 27 kHz, 57 Hz doublescan
|
||||
- dblpal : 640x256, 27 kHz, 47 Hz doublescan
|
||||
|
||||
VGA modes:
|
||||
- vga : 640x480, 31 kHz, 60 Hz
|
||||
- vga70 : 640x400, 31 kHz, 70 Hz
|
||||
|
|
@ -726,7 +758,7 @@ chipset and 8-bit color for the AGA chipset.
|
|||
5.1.2) depth
|
||||
------------
|
||||
|
||||
Syntax: depth:<nr. of bit-planes>
|
||||
:Syntax: depth:<nr. of bit-planes>
|
||||
|
||||
Specify the number of bit-planes for the selected video-mode.
|
||||
|
||||
|
|
@ -739,32 +771,32 @@ Use inverted display (black on white). Functionally the same as the
|
|||
5.1.4) font
|
||||
-----------
|
||||
|
||||
Syntax: font:<fontname>
|
||||
:Syntax: font:<fontname>
|
||||
|
||||
Specify the font to use in text modes. Functionally the same as the
|
||||
"font" sub-option for the Atari, except that `PEARL8x8' is used instead
|
||||
of `VGA8x8' if the vertical size of the display is less than 400 pixel
|
||||
"font" sub-option for the Atari, except that `PEARL8x8` is used instead
|
||||
of `VGA8x8` if the vertical size of the display is less than 400 pixel
|
||||
rows.
|
||||
|
||||
5.1.5) monitorcap:
|
||||
-------------------
|
||||
|
||||
Syntax: monitorcap:<vmin>;<vmax>;<hmin>;<hmax>
|
||||
:Syntax: monitorcap:<vmin>;<vmax>;<hmin>;<hmax>
|
||||
|
||||
This describes the capabilities of a multisync monitor. For now, only
|
||||
the color frame buffer uses the settings of "monitorcap:".
|
||||
|
||||
<vmin> and <vmax> are the minimum and maximum, resp., vertical frequencies
|
||||
<vmin> and <vmax> are the minimum and maximum, resp., vertical frequencies
|
||||
your monitor can work with, in Hz. <hmin> and <hmax> are the same for
|
||||
the horizontal frequency, in kHz.
|
||||
|
||||
The defaults are 50;90;15;38 (Generic Amiga multisync monitor).
|
||||
The defaults are 50;90;15;38 (Generic Amiga multisync monitor).
|
||||
|
||||
|
||||
5.2) fd_def_df0=
|
||||
----------------
|
||||
|
||||
Syntax: fd_def_df0=<value>
|
||||
:Syntax: fd_def_df0=<value>
|
||||
|
||||
Sets the df0 value for "silent" floppy drives. The value should be in
|
||||
hexadecimal with "0x" prefix.
|
||||
|
|
@ -773,7 +805,7 @@ hexadecimal with "0x" prefix.
|
|||
5.3) wd33c93=
|
||||
-------------
|
||||
|
||||
Syntax: wd33c93=<sub-options...>
|
||||
:Syntax: wd33c93=<sub-options...>
|
||||
|
||||
These options affect the A590/A2091, A3000 and GVP Series II SCSI
|
||||
controllers.
|
||||
|
|
@ -784,9 +816,9 @@ below.
|
|||
5.3.1) nosync
|
||||
-------------
|
||||
|
||||
Syntax: nosync:bitmask
|
||||
:Syntax: nosync:bitmask
|
||||
|
||||
bitmask is a byte where the 1st 7 bits correspond with the 7
|
||||
bitmask is a byte where the 1st 7 bits correspond with the 7
|
||||
possible SCSI devices. Set a bit to prevent sync negotiation on that
|
||||
device. To maintain backwards compatibility, a command-line such as
|
||||
"wd33c93=255" will be automatically translated to
|
||||
|
|
@ -796,35 +828,35 @@ all devices, eg. nosync:0xff.
|
|||
5.3.2) period
|
||||
-------------
|
||||
|
||||
Syntax: period:ns
|
||||
:Syntax: period:ns
|
||||
|
||||
`ns' is the minimum # of nanoseconds in a SCSI data transfer
|
||||
`ns` is the minimum # of nanoseconds in a SCSI data transfer
|
||||
period. Default is 500; acceptable values are 250 - 1000.
|
||||
|
||||
5.3.3) disconnect
|
||||
-----------------
|
||||
|
||||
Syntax: disconnect:x
|
||||
:Syntax: disconnect:x
|
||||
|
||||
Specify x = 0 to never allow disconnects, 2 to always allow them.
|
||||
Specify x = 0 to never allow disconnects, 2 to always allow them.
|
||||
x = 1 does 'adaptive' disconnects, which is the default and generally
|
||||
the best choice.
|
||||
|
||||
5.3.4) debug
|
||||
------------
|
||||
|
||||
Syntax: debug:x
|
||||
:Syntax: debug:x
|
||||
|
||||
If `DEBUGGING_ON' is defined, x is a bit mask that causes various
|
||||
If `DEBUGGING_ON` is defined, x is a bit mask that causes various
|
||||
types of debug output to printed - see the DB_xxx defines in
|
||||
wd33c93.h.
|
||||
|
||||
5.3.5) clock
|
||||
------------
|
||||
|
||||
Syntax: clock:x
|
||||
:Syntax: clock:x
|
||||
|
||||
x = clock input in MHz for WD33c93 chip. Normal values would be from
|
||||
x = clock input in MHz for WD33c93 chip. Normal values would be from
|
||||
8 through 20. The default value depends on your hostadapter(s),
|
||||
default for the A3000 internal controller is 14, for the A2091 it's 8
|
||||
and for the GVP hostadapters it's either 8 or 14, depending on the
|
||||
|
|
@ -834,15 +866,15 @@ hostadapters.
|
|||
5.3.6) next
|
||||
-----------
|
||||
|
||||
No argument. Used to separate blocks of keywords when there's more
|
||||
No argument. Used to separate blocks of keywords when there's more
|
||||
than one wd33c93-based host adapter in the system.
|
||||
|
||||
5.3.7) nodma
|
||||
------------
|
||||
|
||||
Syntax: nodma:x
|
||||
:Syntax: nodma:x
|
||||
|
||||
If x is 1 (or if the option is just written as "nodma"), the WD33c93
|
||||
If x is 1 (or if the option is just written as "nodma"), the WD33c93
|
||||
controller will not use DMA (= direct memory access) to access the
|
||||
Amiga's memory. This is useful for some systems (like A3000's and
|
||||
A4000's with the A3640 accelerator, revision 3.0) that have problems
|
||||
|
|
@ -853,32 +885,27 @@ possible.
|
|||
5.4) gvp11=
|
||||
-----------
|
||||
|
||||
Syntax: gvp11=<addr-mask>
|
||||
:Syntax: gvp11=<addr-mask>
|
||||
|
||||
The earlier versions of the GVP driver did not handle DMA
|
||||
The earlier versions of the GVP driver did not handle DMA
|
||||
address-mask settings correctly which made it necessary for some
|
||||
people to use this option, in order to get their GVP controller
|
||||
running under Linux. These problems have hopefully been solved and the
|
||||
use of this option is now highly unrecommended!
|
||||
|
||||
Incorrect use can lead to unpredictable behavior, so please only use
|
||||
Incorrect use can lead to unpredictable behavior, so please only use
|
||||
this option if you *know* what you are doing and have a reason to do
|
||||
so. In any case if you experience problems and need to use this
|
||||
option, please inform us about it by mailing to the Linux/68k kernel
|
||||
mailing list.
|
||||
|
||||
The address mask set by this option specifies which addresses are
|
||||
The address mask set by this option specifies which addresses are
|
||||
valid for DMA with the GVP Series II SCSI controller. An address is
|
||||
valid, if no bits are set except the bits that are set in the mask,
|
||||
too.
|
||||
|
||||
Some versions of the GVP can only DMA into a 24 bit address range,
|
||||
Some versions of the GVP can only DMA into a 24 bit address range,
|
||||
some can address a 25 bit address range while others can use the whole
|
||||
32 bit address range for DMA. The correct setting depends on your
|
||||
controller and should be autodetected by the driver. An example is the
|
||||
24 bit region which is specified by a mask of 0x00fffffe.
|
||||
|
||||
|
||||
/* Local Variables: */
|
||||
/* mode: text */
|
||||
/* End: */
|
||||
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