Add driver for Motorcomm YT8521S Gigabit ethernet phy.

Signed-off-by: Frank Sae <Frank.Sae@motor-comm.com>

Add driver for Motorcomm YT8531S Gigabit ethernet phy.

Signed-off-by: Frank Sae <Frank.Sae@motor-comm.com>

Add a driver for the motorcomm YT8821 2.5G ethernet phy which works in
2500base-x mode.

Verify the driver on BPI-R3(with MediaTek MT7986(Filogic 830) SoC) evb.

Signed-off-by: Frank Sae <Frank.Sae@motor-comm.com>

YT8531 as Gigabit transceiver uses bit15:14(bit9 reserved default 0) as phy
speed mask, YT8821 as 2.5 Gigabit transceiver uses bit9 bit15:14 as phy
speed mask.

Be compatible to YT8821, reform phy speed mask and phy speed macro.

Signed-off-by: Frank Sae <Frank.Sae@motor-comm.com>

As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>

When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.

This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>

Remove <common.h> from this driver directory and when needed
add missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>

This ports the pad drive strength register configuration which can be
already found in the Linux driver for this PHY.

Signed-off-by: Lukasz Tekieli <tekieli.lukasz@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>

The YT8511 ethernet PHYs can be found on e.g. the SOQuartz or
the Quartz64. Add rudimentary support for them.

Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>

Add a driver for the motorcomm yt8531 gigabit ethernet phy. We have
verified the driver on StarFive VisionFive2 board.

Signed-off-by: Yanhong Wang <yanhong.wang@starfivetech.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>