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AM572x debug UART pin change

Ronak Kotak
Intellectual 270 points
Other Parts Discussed in Thread: AM5728

Hi,

I have designed one of design based on AM5728. In the EVM UART3 is used for Debug Uart, while in our design we have configure the same UART3 as serial debug, but the pin configurations are different i.e EVM has used Pin D27 of AM5728 as UART3_RXD & C28 as UART3_TXD while in our design I have configured pin V2 of AM5728 as UART3_RXD & Y1 as UART3_TXD.

So can you please tell me the changes I need to do in the U-Boot Code/Pin Mux Settings to configure the debug uart as per my pin configurations.

  • 0
    TI__Guru**** 393215 points
    I will forward this to the software team.
  • 0
    TI__Guru**** 161600 points
    Hi,

    You should add the D27 & C28 pinmux settings in board/ti/am57xx/mux_data.h file. You can take a reference from the other mux settings in order to add your custom changes.
    NOTE: You need to check for conflicts; i.e. make sure no other module uses those two device balls (D27 & C28).

    You also need to change your serial debug console in the ENV settings in am57xx_evm.h.

    On kernel side you need to do the appropriate configurations in the .dts file.

    Hope this helps.

    Best Regards,
    Yordan