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Add Airoha AN8801 Ethernet PHY driver (air_an8801.c).
Implement CL22/CL45 MDIO access, LED control, and RGMII delay
configuration. Provide probe, initialization, LED setup, and status
handling. Expose DTS properties for clock delays. Register driver with
PHY framework and trigger on startup.
Signed-off-by: Yanqing Wang <[email protected]>
Signed-off-by: Julien Stephan <[email protected]>
Reviewed-by: Kevin-KW Huang <[email protected]>
Link: https://patch.msgid.link/20260429-add-ethernet-support-for-genio-520-720-v4-6-be54e17239b7@baylibre.com
Signed-off-by: David Lechner <[email protected]>
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In preparation of Airoha AN8801R PHY support, move the BuckPBus
register accessors and definitions, present in air_en8811h driver,
into the Airoha PHY shared code (air_phy_lib), so they will be usable
by the new driver without duplicating them.
Also, update air_en8811h driver to use the new function names.
Adapted from [1].
[1]: https://lore.kernel.org/all/20260326-add-airoha-an8801-support-v2-2-1a42d6b6050f@collabora.com/
Signed-off-by: Julien Stephan <[email protected]>
Link: https://patch.msgid.link/20260429-add-ethernet-support-for-genio-520-720-v4-5-be54e17239b7@baylibre.com
Signed-off-by: David Lechner <[email protected]>
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Add the driver for the Airoha EN8811H 2.5 Gigabit PHY. The PHY supports
100/1000/2500 Mbps with auto negotiation only.
The driver uses two firmware files, for which updated versions are added to
linux-firmware already.
Locating the AIROHA FW within the filesystem at the designated partition
and path will trigger its automatic loading and writing to the PHY via MDIO.
If need board specific loading override,
please override the en8811h_read_fw function on board or architecture level.
Based on the Linux upstream AIROHA EN8811H driver code(air_en8811h.c),
I have modified the relevant process to align with the U-Boot boot sequence.
and have validated this on Banana Pi BPI-R3 Mini.
Signed-off-by: Lucien.Jheng <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
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