sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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Merge ^/head r318658 through r318963.

[arswitch] add phy debugging to the internal PHY read/write functions.

Merge ^/head r303250 through r304235.

[arswitch] extend the debug support to be configurable at runtime.

* remove the DEBUG ifdef; defining it is too far reaching throughout
the whole system;
* add a bitmask in the softc for controlli

[arswitch] extend the debug support to be configurable at runtime.

* remove the DEBUG ifdef; defining it is too far reaching throughout
the whole system;
* add a bitmask in the softc for controlling debugging;
* .. enable said debugging as a sysctl;
* add bitmaps for register access, reset and vlans.

TODO:

* Now that the debug statements are configurable, we definitely could
do with more debugging
* Move the debugging into the top-level etherswitch driver and have
sub-drivers obey.

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MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

Mfh r292839

[mdio] migrate mdiobus out of etherswitch and into a top-level device of its own.

The mdio driver interface is generally useful for devices that require
MDIO without the full MII bus interface. This

[mdio] migrate mdiobus out of etherswitch and into a top-level device of its own.

The mdio driver interface is generally useful for devices that require
MDIO without the full MII bus interface. This lifts the driver/interface
out of etherswitch(4), and adds a mdio(4) man page.

Submitted by: Landon Fuller <landon@landonf.org>
Differential Revision: https://reviews.freebsd.org/D4606

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Merge sync of head

MFH: r278968-r280640

Sponsored by: The FreeBSD Foundation

Merge r278538 through r280226.

Merge from head

Merge ^/head r279759 through r279892.

Fix up support for the AR8327.

* Even though I got the registers around "right", it seems
I'm not tickling the MDIO access correctly for the internal PHY
bus. Some of the switches are fine poki

Fix up support for the AR8327.

* Even though I got the registers around "right", it seems
I'm not tickling the MDIO access correctly for the internal PHY
bus. Some of the switches are fine poking at the external PHY
registers; others aren't. So, enable direct PHY bus access
for the AR8327, and leave the existing code in place for the
others.

* Go and shuffle the register access around. Whilst here,
restore the 2ms delay if changing page.

* Comment out some of the stub printf()s; there's some upcoming
work to add port VLAN support.

Tested:

* AP135 development board
* Carambola2 - AR9331 SoC

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Revert r268543.

We should probably fix sys/gpio.h instead.

Move iic.h to sys/ so that it's automatically installed in /usr/include/sys.

This lets us call iic(4) ioctls without needing the kernel source code
and follows the same model of GPIO.

MFC after: 3

Move iic.h to sys/ so that it's automatically installed in /usr/include/sys.

This lets us call iic(4) ioctls without needing the kernel source code
and follows the same model of GPIO.

MFC after: 3 weeks

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MFC @ r266724

An SVM update will follow this.

Merge head

IFC @264767

MFH: tracking commit

Sponsored by: The FreeBSD Foundation

Teach the PHY register path about the different MDIO bus address
for the AR8327.

Tested:

* AR8327, DB120

MFC @ r259205 in preparation for some SVM updates. (for real this time)

Merge head r232040 through r257457.
M usr.sbin/portsnap/portsnap/portsnap.8
M usr.sbin/portsnap/portsnap/portsnap.sh
M usr.sbin/tcpdump/tcpdump/Makefile