Additional UART for command response at U-boot stage

[DipinPK]

Hi All,

We are using NXP Imx6 mx6sabresd processor board. We have three UART available for the board. UART1,UART2 and UART5. In that UART5 is the debug port and all UART are initialized in dts file and board.c files.

Now at U-boot stage we have UART5 as debug port and initialized UART1 also. Can anyone help me to find out a way read/write using UART1?

Do I need to make any u-boot code changes to read/write some custom data via UART1? If yes which files I should change? and I am not aware of the exact changes.

Thanks in advance

Regards

[Rita_Wang]

What's the UART1 used for? If you already set the UART5 as debug port, just to configure the UART5.

[DipinPK]

UART1 is used for some custom data transfer at U-boot stage

Basically, I have to send 10 bytes of data out at U-boot stage via UART1. ANd the debug port should be stand-alone with UART5.