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AM625: Waking up AM625 by USB device

Part Number: AM625

Hi,

My customer tried waking up AM625x by USB device connect/disconnect.
SW : Linux SDK v8.4
HW: SK-64

According to the original post (above link), this feature should be supported in SDK v8.4.
The customer used below image.
https://dr-download.ti.com/software-development/software-development-kit-sdk/MD-PvdSyIiioq/08.04.01.03/tisdk-default-image-am62xx-evm.wic.xz

And here are what they tried.
In the u-boot console, below commands are executed.

run envboot; setenv name_fdt k3-am625-sk-lpmdemo.dtb; run init_mmc; run get_kern_mmc;run get_fdt_mmc;run get_overlay_mmc; booti ${loadaddr} ${rdaddr}:${filesize} ${fdtaddr}

But USB device was not recognized.
Can you provide the sequence to wakeup AM625x by USB device?

Thanks and regards,
Koichiro Tashiro