IMX8MP debug port change to uart4 on Android

[FoxYang]

Hi,

In imx8mp on customer board.

I have already change debug port from uart2 to uart4 on yocto(Linux 6.1.1_1.0.1 BSP).

And type cmd is OK.

The same modify on Android (Android 13.0.0_2.0.0 (L6.1.22_2.0.0 BSP)),

after booting finish(hdmi show android launcher),debug console can show message

but can't type anything.

I have compare yocto and android modify.

There are 2 file I can't find in Android BSP.

\sources\meta-freescale\conf\machine\include\imx-base.inc

\sources\meta-freescale\conf\machine\include\imx8mp-evk.inc

How to fix it?

Thanks.

[AldoG · Accepted solution]

Hello,

You are looking for Yocto specific files, that are not available on Android.
For Android you'll need to patch Linux/Uboot/ATF the same way you did for the Linux system you built using Yocto.

Best regards/Saludos,
Aldo.