How to disable PCIe ASPM permanently

Robotics & Edge Computing Jetson & Embedded Systems Jetson Nano
1

Hi
The Jetson nano image has an issue on my Intel WIFI adapter as below:

[  741.263416] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
[  741.274752] pcieport 0000:00:01.0:   device [10de:0fae] error status/mask=00000001/00002000
[  741.283347] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)

Based on the info in this forums, it may be the PCIe ASPM in power save mode. I tried in command. It looks like work. Would you please let me know to disable PCIe ASPM permanently step by step.
Thanks

CX

3

Hi,

The method to permanently to disable ASPM are two opitions

  • Disabling from the beginning
    • Appending ‘pcie_aspm=off’ to the kernel command line (boot/extlinux/extlinux.conf)
    • Removing “CONFIG_PCIEASPM_POWERSAVE=y” and setting “CONFIG_PCIEASPM_PERFORMANCE=y” in the kernel configuration
1 Like
4

where is the kernel configuration file?
Thanks

5

tegra_defconfig in the kernel source.

This step requires you to download source code and rebuild the linux kernel.

7

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