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earlycon serial support for imx8mq

Question asked by Amit Tomar on Feb 5, 2019
Latest reply on Feb 5, 2019 by Victor Linnik

Hello

 

Wondering if earlycon support has well tested on imx8mq based SoC ?

 

We are working on, boundry device provided Nitrogen8m board based on imx8mq SoC.

Nitrogen8M - An NXP i.MX8 M Single Board Computer Platform .

 

While testing earlycon serial support we just see garbage on our console, This is how our chosen node looks like:

 

      chosen {
                    bootargs = "console=ttymxc0,115200 earlycon=ec_imx6q,0x30860000,115200";
                    stdout-path = &uart1;
        };

 

We don't have anything set in bootargs from u-boot and following is how we load our kernel

 

setenv ipaddr 10.105.2.28;setenv serverip 10.105.2.27;tftp 0x40480000 Image;tftp 0x43000000 imx8mq-nitrogen8m.dtb
booti 0x40480000 - 0x43000000

 

Starting kernel ...

 

� ����� ������� � ���� � ��� �� ��� � ����� � � � �� �� ���� ����� ������� �� ��� � �� � � � ������ � �������� � ���� �� �� � �� �� �� � � � � � � � ���� � ��������� �� �

 

All, we see is random chars on console.

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