how to switch uboot debug console from uart1 to uart3 for linux 5.10.9 (uboot 2020.04)

hailiu — Thu, 23 Sep 2021 22:05:22 GMT

dear friends,

I am porting uboot code based on linux 5.10.9 for imx6 solo processor, I plan to use uart3 as the uboot debug console port. I modified the device tree as:

chosen {

stdout-path=&uart3;

}

I also modified mx6sabresd.c file as:

setup_iOmux_uart(void)

{

SETUP_IOMUX_PADS(uart3_pads);

}

and modified the uart3_pads definitions correspondingly.

Do I need to modify the CONS_INDEX =1 to CONS_INDEX=3?

any other modifications needed?

would you please direct me to the documentation if possible.

thank you,

Hai

Re: how to switch uboot debug console from uart1 to uart3 for linux 5.10.9 (uboot 2020.04)

igorpadykov — Fri, 24 Sep 2021 00:33:21 GMT

one can look at #define CONSOLE_DEV in

https://source.codeaurora.org/external/imx/uboot-imx/tree/include/configs/mx6sabresd.h?h=lf_v2021.04

Best regards
igor

i.MX Processors中的主题 how to switch uboot debug console from uart1 to uart3 for linux 5.10.9 (uboot 2020.04)

how to switch uboot debug console from uart1 to uart3 for linux 5.10.9 (uboot 2020.04)

Re: how to switch uboot debug console from uart1 to uart3 for linux 5.10.9 (uboot 2020.04)