bootparam.7: Remove crufty details IBM MCA bus devices

See kernel commit a88dc06cd515b3bb9dfa18606e88d0be9a5b6ddd

[Part of a general change to remove cruft from this page.]
Much of the detail on device-driver specifics in this page dates
from the 20th century. (The last major update to this page was in
man-pages-1.14!) It's hugely out of date now (many of these
devices disappeared from the kernel years ago.) Arguably, this
kind of detail should never have been placed in a man page to
begin with, since devices come and go. Remove such text, and
where appropriate and possible add pointers to files in the
kernel Documentation/ directory.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man7/bootparam.7

@@ -721,202 +721,6 @@ Syntax:
 .BI ez= iobase[,irq[,rep[,nybble]]]
 .fi
 .in
-.SS IBM MCA bus devices
-See also the kernel source file
-.IR Documentation/mca.txt .
-.TP
-.B "PS/2 ESDI hard disks"
-It is possible to specify the desired geometry at boot time:
-
-.in +4n
-.nf
-.BI ed= cyls,heads,sectors.
-.fi
-.in
-.IP
-For a ThinkPad-720, add the option
-
-.in +4n
-.nf
-.BR tp720=1 .
-.fi
-.in
-.TP
-.B "IBM Microchannel SCSI Subsystem configuration"
-Syntax:
-
-.in +4n
-.nf
-.BI ibmmcascsi= N
-.fi
-.in
-.IP
-where N is the
-.I pun
-(SCSI ID) of the subsystem.
-.TP
-.B "The Aztech Interface"
-The syntax for this type of card is:
-
-.in +4n
-.nf
-aztcd=iobase[,magic_number]
-.fi
-.in
-.IP
-If you set the magic_number to 0x79, then the driver will try and run
-anyway in the event of an unknown firmware version.
-All other values
-are ignored.
-.TP
-.B "Parallel port CD-ROM drives"
-Syntax:
-
-.in +4n
-.nf
-pcd.driveN=prt,pro,uni,mod,slv,dly
-pcd.nice=nice
-.fi
-.in
-.IP
-where 'port' is the base address, 'pro' is the protocol number, 'uni'
-is the unit selector (for chained devices), 'mod' is the mode (or \-1
-to choose the best automatically), 'slv' is 1 if it should be a slave,
-and 'dly' is a small integer for slowing down port accesses.
-The 'nice' parameter controls the driver's use of idle CPU time, at the
-expense of some speed.
-.TP
-.B "The CDU-31A and CDU-33A Sony Interface"
-This CD-ROM interface is found on some of the Pro Audio Spectrum sound
-cards, and other Sony supplied interface cards.
-The syntax is as follows:
-
-.in +4n
-.nf
-cdu31a=iobase,[irq[,is_pas_card]]
-.fi
-.in
-.IP
-Specifying an IRQ value of zero tells the driver that hardware
-interrupts aren't supported (as on some PAS cards).
-If your card
-supports interrupts, you should use them as it cuts down on the CPU
-usage of the driver.
-
-The
-.I is_pas_card
-should be entered as 'PAS' if using a Pro Audio Spectrum card,
-and otherwise it should not be specified at all.
-.TP
-.B "The CDU-535 Sony Interface"
-The syntax for this CD-ROM interface is:
-
-.in +4n
-.nf
-sonycd535=iobase[,irq]
-.fi
-.in
-.IP
-A zero can be used for the I/O base as a 'placeholder' if one wishes
-to specify an IRQ value.
-.TP
-.B "The GoldStar Interface"
-The syntax for this CD-ROM interface is:
-
-.in +4n
-.nf
-gscd=iobase
-.fi
-.in
-.TP
-.B "The ISP16 CD-ROM Interface"
-Syntax:
-
-.in +4n
-.nf
-isp16=[iobase[,irq[,dma[,type]]]]
-.fi
-.in
-.IP
-(Three integers and a string.)
-If the type is given as 'noisp16',
-the interface will not be configured.
-Other recognized types
-are: 'Sanyo", 'Sony', 'Panasonic' and 'Mitsumi'.
-.TP
-.B "The Mitsumi Standard Interface"
-The syntax for this CD-ROM interface is:
-
-.in +4n
-.nf
-mcd=iobase,[irq[,wait_value]]
-.fi
-.in
-.IP
-The
-.I wait_value
-is used as an internal timeout value for people who are
-having problems with their drive, and may or may not be implemented
-depending on a compile-time #define.
-The Mitsumi FX400 is an IDE/ATAPI CD-ROM player and does not use
-the mcd driver.
-.TP
-.B "The Mitsumi XA/MultiSession Interface"
-This is for the same hardware as above, but the driver has extended features.
-Syntax:
-
-.in +4n
-.nf
-mcdx=iobase[,irq]
-.fi
-.in
-.TP
-.B "The Optics Storage Interface"
-The syntax for this type of card is:
-
-.in +4n
-.nf
-optcd=iobase
-.fi
-.in
-.TP
-.B "The Phillips CM206 Interface"
-The syntax for this type of card is:
-
-.in +4n
-.nf
-cm206=[iobase][,irq]
-.fi
-.in
-.IP
-The driver assumes numbers between 3 and 11 are IRQ values, and
-numbers between 0x300 and 0x370 are I/O ports, so you can specify one,
-or both numbers, in any order.
-It also accepts 'cm206=auto' to enable
-autoprobing.
-.TP
-.B "The Sanyo Interface"
-The syntax for this type of card is:
-
-.in +4n
-.nf
-sjcd=iobase[,irq[,dma_channel]]
-.fi
-.in
-.TP
-.B "The SoundBlaster Pro Interface"
-The syntax for this type of card is:
-
-.in +4n
-.nf
-sbpcd=iobase,type
-.fi
-.in
-.IP
-where type is one of the following (case sensitive) strings:
-\&'SoundBlaster', 'LaserMate', or 'SPEA'.
-The I/O base is that of the
-CD-ROM interface, and not that of the sound portion of the card.
 .SS Ethernet devices
 Different drivers make use of different parameters, but they all at
 least share having an IRQ, an I/O port base value, and a name.