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Configure rx_delay/tx_delay values for RK3399/RK3328 GMAC

Description

Configure rx_delay/tx_delay values for RK3399/RK3328 GMAC

For 1000Mb mode to work reliably TX/RX delays need to be configured
between the TX/RX clock and the respective signals on the PHY
to compensate for differing trace lengths on the PCB.

Reviewed by: manu
MFC after: 1 week

Details

Provenance
gonzoAuthored on
Parents
rS362735: Make linux(4) support SO_PROTOCOL. Running Python test suite
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