We connect a PCI switch through the two line PCI bus of Jetson nano. I can see the identified bus under lspci, but the bus can not be used. When I check the log, I will make the following error
pci-log.log (76.5 KB)
We connect a PCI switch through the two line PCI bus of Jetson nano. I can see the identified bus under lspci, but the bus can not be used. When I check the log, I will make the following error
Now we can recognize a upd720202 device but it canât work. The LED on the hardware indicates that the device has been disconnected
Can you please attach âsudo lspci -vvâ output? Iâm wondering if ASPM states are enabled for the link.
I see that PCIe ASPM states are enabled.
Could you please add âpcie_aspm=offâ to the kernel command line?
Alternatively, you can set CONFIG_PCIEASPM_PERFORMANCE=y (instead of CONFIG_PCIEASPM_POWERSAVE=y) in the kernel configs. I hope this would solve all the issues.
ok thanks ïŒim try
thanks ïŒim try comfig CONFIG_PCIEASPM_PERFORMANCE=y ,now it can be work