azerupi opened a new issue, #16213:
URL: https://github.com/apache/nuttx/issues/16213

   ### Is your feature request related to a problem? Please describe.
   
   We have a board with an STM32H7 connected to an IC switch through RMII. This 
IC switch is also connected to an embedded Linux soc and the MDIO and MDC lines 
are connected to that SOC.
   
   However the code in NuttX expects the MDIO / MDC lines and configures them 
here unconditionally:
   
   
https://github.com/apache/nuttx/blob/master/arch/arm/src/stm32h7/stm32_ethernet.c#L3703-L3704
   
   When I comment them out and configure `CONFIG_STM32H7_NO_PHY=y` ethernet 
seems to work on our board.
   
   ### Describe the solution you'd like
   
   Use `CONFIG_STM32H7_NO_PHY` to conditionally compile those lines away?
   
   ### Describe alternatives you've considered
   
   _No response_
   
   ### Verification
   
   - [x] I have verified before submitting the report.


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