imx287 uboot no information output

[1518177561]

imx287 evk board  no  uboot information  output.

but I want to modify uboot . no information , I can not known modify is valid.  images is :

How to see uboot(2009.08) information about imx287 , please help me .

[b36401]

Do you want u-boot to not output the diagnostic?
You can change the output to some another UART that is not actually connected.