IMX8MP Custom board | How to change the debug uart from the uart2 to uart1 for both u-boot & kernel

Nigesh247 — Sat, 17 Jan 2026 07:50:32 GMT

Hi all ,

On i.MX8MP, the default early debug / console output comes on UART2.I want to move the entire boot console to UART1 instead.What is the correct and complete procedure to do this on i.MX8MP?

If someone has already done this, please guide me exactly which changes are needed and in which files to move the debug UART from UART2 to UART1 on i.MX8MP

Re: IMX8MP Custom board | How to change the debug uart from the uart2 to uart1 for both u-boot &&

joanxie — Wed, 21 Jan 2026 01:54:07 GMT

pls refer to the link as below

https://community.nxp.com/t5/i-MX-Processors/IMX8MP-uart2-to-uart4/td-p/1616936

topic IMX8MP Custom board | How to change the debug uart from the uart2 to uart1 for both u-boot & kernel in Processor Expert Software

IMX8MP Custom board | How to change the debug uart from the uart2 to uart1 for both u-boot & kernel

Re: IMX8MP Custom board | How to change the debug uart from the uart2 to uart1 for both u-boot &&