how to get AM335x-EVM log information from UART_2

NAVEEN RUNJALA

i have another doubt actually when i switch ON the board i'm getting entire log information through uart_0 so here i want to change that UART_0 into uart_2 so how can i do that........

over 9 years ago

0 Cvetolin Shulev-XID over 9 years ago

TI__Guru 65405 points

Hi Naveen,

You should to change the 'console' bootarg value. For example 'console=ttyOX,115200n8', where X should be changed from 0 to 2.
You can read more details about Setting U-Boot environment using uEnv.txt at:
processors.wiki.ti.com/.../AM335x_U-Boot_User's_Guide

BR
Tsvetolin Shulev

0 NAVEEN RUNJALA over 9 years ago in reply to Cvetolin Shulev-XID

Expert 1220 points

Dear Cvetolin,

thanks for your reply, i modified the console bootarg in "/uboot/include/configs am335x-evm.h" file but what happened is i'm getting the uboot log information from uart_0 rest of information from uart_2 like the entire kernel log information is coming from uart_2 so after board boot up defaultly uart_0 is working not uart_2..

0 Cvetolin Shulev-XID over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru 65405 points

Naveen,

I suggest you to add to your changes bootarg configuration in the uEnv.txt file using format described at:
processors.wiki.ti.com/.../AM335x_U-Boot_User's_Guide
but you should change only the 'console' arg value in the uEnv.txt to
console=ttyO2,115200n8

The rest bootargs variables should not be changed. They can be viewed in the u-boot using 'printenv' command.

BR
Tsvetolin Shulev

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how to get AM335x-EVM log information from UART_2