net: phy: Add support for the ADIN1140 PHY

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Add a driver for the ADIN1140's internal 10BASE-T1S PHY. The device
doesn't implement autonegotiation, so the link is always reported as
being up.

The device implements both C22 and C45 MDIO access methods, but can only
be discovered over C22, since the C45 MMD devices lack the MDIO_DEVID1 and
MDIO_DEVID2 registers. The indirect C45 over C22 feature is not
supported.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Ciprian Regus <ciprian.regus@analog.com>
Link: https://patch.msgid.link/20260708-adin1140-driver-v5-12-4aca7b51a58b@analog.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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Ciprian Regus 2026-07-08 01:33:40 +03:00 • committed by Paolo Abeni

parent 85032df227

commit 0feaf415b7

4 changed files with 86 additions and 0 deletions

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7

MAINTAINERS

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6

drivers/net/phy/Kconfig

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1

drivers/net/phy/Makefile

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72

drivers/net/phy/adin1140-phy.c

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