Background Information

AM62P uses the TIFS stub as a part of the suspend/resume process as documented here: https://software-dl.ti.com/processor-sdk-linux/esd/AM62PX/latest/exports/docs/linux/Foundational_Components/Power_Management/pm_sw_arch.html

When using the pre-made wic image for AM62P, the TIFS Stub is included as seen below:

Host PC Command: mkimage -l tispl.bin

Image 5 (tifsstub-fs)
  Description:  TIFSSTUB
  Created:      Fri Nov 29 05:41:54 2024
  Type:         Firmware
  Compression:  uncompressed
  Data Size:    30387 Bytes = 29.67 KiB = 0.03 MiB
  Architecture: Unknown Architecture
  OS:           Unknown OS
  Load Address: 0x9ca00000 

If you try to build the U-Boot images using the pre-built components in the Linux SDK 10.0 and 10.1, the TIFS Stub firmware is missing.

 Image 5 (tifsstub-fs)
  Description:  TIFSSTUB
  Created:      Tue Apr 29 17:28:56 2025
  Type:         Firmware
  Compression:  uncompressed
  Data Size:    0 Bytes = 0.00 KiB = 0.00 MiB 
  Architecture: Unknown Architecture
  OS:           Unknown OS
  Load Address: 0x9ca00000 

Notice how the TIFS Stub files are size of zero which means it completely missing from the tispl.bin image.

This means during the Suspend sequence, at the TIFS step, it will fail to suspend and crash Linux.

Solution

If building using any of the makefiles, it may come with an error stating the Stub is missing.

The solution is to add these Stub files into the pre-built images section: "board-support/prebuilt-images/am62pxx-evm/ti-sysfw/"

The stub files can be found here:

/cfs-file/__key/communityserver-discussions-components-files/791/8270.ti_2D00_fs_2D00_stub_2D00_firmware_2D00_am62px_2D00_hs_2D00_enc.bin

/cfs-file/__key/communityserver-discussions-components-files/791/8270.ti_2D00_fs_2D00_stub_2D00_firmware_2D00_am62px_2D00_hs_2D00_cert.bin

After adding the files, re-compile the u-boot build to make everything is working.