Second UART on i.MX8MQ-EVK

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Second UART on i.MX8MQ-EVK

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lcothales
Contributor I

Hi,

I tried to use the second UART of my iMX8MQ-EVK to print the output of the Linux console.
I built a Linux with yocto (version : imx-6.1.36-2.1.0).
I have enabled all uarts in the device tree. So, in my Linux, I have ttymxc0/1/2/3 but
none sends traces to my minicom on ttyUSB1 when I change console boot parameter via u-boot.

The second UART is dedicated to M4 or it can be used with A53 ?
Is there a way to enable the second UART ?

Thanks in advance,

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1 Solution
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JosephAtNXP
NXP TechSupport
NXP TechSupport

Hi,

Thank you for your interest in NXP Semiconductor products,

As this post suggests, you need to make changes starting from atf, could you follow the guide and feed if you succeed?

Regards

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210 Views
JosephAtNXP
NXP TechSupport
NXP TechSupport

Hi,

Thank you for your interest in NXP Semiconductor products,

As this post suggests, you need to make changes starting from atf, could you follow the guide and feed if you succeed?

Regards

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