net: lan743x: add support for RMII interface

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Enable RMII interface in the lan743x driver for PHY and MAC
configuration.

- Select RMII interface in lan743x_phy_interface_select().
- Update phylink supported_interfaces and MAC capabilities.
- Enable RMII via RMII_CTL in lan743x_hardware_init().
- Define RMII_CTL register and enable bit in lan743x_main.h.

EEE is not supported with RMII on PCI11x1x: the hardware does not
implement LPI signaling over RMII. Clear RMII from lpi_interfaces to
prevent phylink from enabling EEE on this interface.

Signed-off-by: Thangaraj Samynathan <thangaraj.s@microchip.com>
Link: https://patch.msgid.link/20260723050827.694832-3-Thangaraj.S@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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This commit is contained in:

Thangaraj Samynathan 2026-07-23 10:38:27 +05:30 • committed by Paolo Abeni

parent fc2b13acef

commit c2e2921d7a

2 changed files with 24 additions and 2 deletions

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23

drivers/net/ethernet/microchip/lan743x_main.c

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3

drivers/net/ethernet/microchip/lan743x_main.h

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