AM69A: SK-AM69 UART

Hi Tony,

WKUP_UART0 / COM1 outputs TIFS logs. In general, the SK boards will show the output boot log on the 3rd port (COM3). This is stated in the AM69A documentation: https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-am69a/10_00_00/exports/edgeai-docs/devices/AM69A/linux/getting_started.html#power-on-and-boot

You can also see this reflected in the device tree for this device: https://git.ti.com/cgit/processor-sdk/u-boot/tree/arch/arm/dts/k3-am69-sk.dts?h=ti-u-boot-2023.04

Thank you,

Fabiana