How to Disable Spread Spectrum Clocking(SSC) in AGX Orin

Robotics & Edge Computing Jetson Systems Jetson Nano
, ,
1

Hi,
I have Jestson AGX Orin Industrial module mounted on Custom Carrier board.
I flashed the module with latest Jetpack 6.2.1 (r36.4).
I want to disable Spread Spectrum Clocking.
I followed below threads -
https://forums.developer.nvidia.com/t/disable-spread-spectrum-clocking-on-jetson-orin-nx-16-gb/316399
https://forums.developer.nvidia.com/t/how-to-disable-spread-spectrum-clocking-ssc-on-orin/219061/1
https://forums.developer.nvidia.com/t/trying-to-disable-pcie-spread-spectrum-clocking-in-orin-cannot-find-definitions-for-tegra234-clk-pllnvhs-etc/233782

But all above threads are related to Jetpack 5 (r34.1) and the files related to “bpmp” are not at the specified directory in latest Jetpack 6.2.1 (r36.1).
Can anyone tell me which file should be modifed in order to disable the SSC in Orin and How to do it?

3

Check the L4T document to get the kernel source code that should include that files.

4

You may need to use dtc to un-complie the dtb to add the solution like below.