Revert r330897:

This was intended to be a non-functional change. It wasn't. The commit
message was thus wrong. In addition it broke arm, and merged crypto
related code.

Revert with prejudice.

This revert skips files touched in r316370 since that commit was since
MFCed. This revert also skips files that require $FreeBSD$ property
changes.

Thank you to those who helped me get out of this mess including but not
limited to gonzo, kevans, rgrimes.

Requested by: gjb (re)

Partial merge of the SPDX changes

These changes are incomplete but are making it difficult
to determine what other changes can/should be merged.

No objections from: pfg

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Use bus space functions rather than inw/outw
to help a future port of the driver to ARM.

Approved by: imp (mentor)

Add a warning if we're inw'ing from an odd address. This could happen
due to a bug and might be the real basis for the cardbus workaround
hack.

Improve the EEPROM parsing, based on finding a datasheet that describes
it in detail.

When setting media, don't error out when a specific media is selected.
# Note: There may be some issues still here since the EtherJet PC Card doesn't
# conform to the datasheet. Many different kinds of dongles can be plugged in
# and it is unknown how to ask which one it is.

Also, add a /* bad! */ comment to a 1/2 second delay after we set the
DC/DC parameters. This should be a *sleep of some sort for !cold.
Fortunately it is the only one and is only used when setting media, so
the benefit from removing it is small. Unfortunately, it likely
serves as an exemplar of good programming techniques, which it isn't.

Remove unused fields in softc. If they are ever really needed again,
they can re-added. Remove CS_NAME. Don't whine when there's an
ignored checksum error: User has said STFU, so we should S the FU.
(remove mandated properties).

Start each of the license/copyright comments with /*-, minor shuffle of lines

o Add sysctl to allow ignoring checksum of eeprom.
o Fix minor type problems
o Fix minor problem with a couple debug printfs.
o Default to a sane media type when none is reported.
o Minor style changes

The PR complains this will fix the IBM 300GL cards.

Submitted by: Max Gotlib
PR: 11462

Additional enhancments to allow IBM Etherjet cards to be probed,
attached and ifconfigable. The card doesn't interrupt yet.

Also, move towards bus space by introducing new macros/inline
functions which make such a move much easier than before.

These inline functions are setup now to work around an IBM EtherJet
pccard cardbus bridge incompatibility. The card works in 8 bit mode,
but not in 16-bit mode when it is connected to a cardbus bridge for
reasons unknown. The Linux driver also has a similar workaround in
it.

Future work will include making the above workaround runtime
conditional rather than compile time conditional, as well as fixing
the interrupts in pccards and converting it to bus space.

NewBus the cs driver.

Submitted by: max@rsu.ru

$Id$ -> $FreeBSD$

Add the 'cs' driver for Crystal Semiconductor CS89x0 devices. This
supports PnP and if_media. I've been running a slightly older version
here for several weeks now.
Submitted by: Maxim Bolotin <max@rsu.ru>