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P4040_CONSOLE_ttyS2

Question asked by 俊 肖 on Jul 20, 2017
Latest reply on Jul 26, 2017 by 俊 肖

Hi,support

Could you tell me how to setup console to ttyS2(UART2)? ttyS0(UART0) works fine.

We have tried to modify u-boot environment variable bootargs to "root=/dev/ram console=ttyS2,115200", but it dose not work.

The filesystem we used is extracted from QorIQ-SDK-V1.8 flash image, CPU is P4040.

We have checked ttyS2(UART2), rx and tx works fine.

We wonder if any configuration file of the filesystem need to be customized.

 

Any suggestions would be greatly appreciated!

 

Have a great day!

Xiao Jun

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