How to turn off ASPM function in orin

[283845515]

How to turn off ASPM function in orin,？I didn’t find the corresponding information in the forum and documentation, can you provide the help, thanks.

[kayccc]

By default, the ASPM should be disabled.
You can find the info under “lspci -vvv” output.

[283845515]

This I tried and there was no response.

[WayneWWW]

Please try

• Appending ‘pcie_aspm=off’ to the kernel command line in extlinux.conf.
• Removing “CONFIG_PCIEASPM_POWERSAVE=y” and setting “CONFIG_PCIEASPM_PERFORMANCE=y” in the kernel configuration

[283845515]

After change：
Before change：
Same problem, no information is output after the change using LSPCI -VVV.
Are there any other ideas, please?

[283845515]

The previous problem has been solved, but the result after entering the command after lspci -vvv is like this, I have no way to tell if ASPM mode is disabled or not.

[WayneWWW]

You should check lspci with sudo.

[283845515]

Thanks for your help, ASPM is indeed banned. But I have one more question. Regarding the CLKREQ pin, is there a way to output the clock if I don’t want to use this pin?

[WayneWWW]

You are talking about using other clk instead of this pin?

[283845515]

Yes, orin’s C5 I connected to Switch, but there is no CLKREQ pin in Switch, currently the clock of C5 part can not be output, so is there a way to output the clock of C5 part without CLKREQ?

[WayneWWW]

Sorry that we don’t support such device. Must have CLKREQ.