JetPack 5.0.2 with PCIE Hub and NVME doesn't work

Hello together,

after upgrading from JetPack 4.7.3 to JetPack 5.0.2 my NVME in a custom doesn’t work anymore. I get the following output in dmesg.

[  475.963749] nvme nvme0: pci function 0005:06:00.0

[  537.573600] nvme nvme0: I/O 0 QID 0 timeout, disable controller

[  537.681361] nvme nvme0: Device shutdown incomplete; abort shutdown

[  537.701906] nvme nvme0: Identify Controller failed (-4)

[  537.702134] nvme nvme0: Removing after probe failure status: -5

I’ve tried following combinations:

• Same SOM+Kernel with a custom board without a PCIE Hub, so that the NVME is directly connected. → works


• Same custom Board with PCIE Hub and with JetPack 4.7.3 → works

So i think it’s a timing probing issue within the nvme-pci driver.

The reason why we’re switching from 4.7.3 to 5.0.2 is because of the CBoot, since it also had a problem which was similar to this: Boot Jetson xavier NX using M.2 Key-M SSD

What also is interesting in the UEFI i see the correct NVME as a boot option.

Attached is the dmesg output & the PCIE hub logic in the actual board.

bootlog_pci_hub_nvme_failed_jetpack_5_0_2.log (80.9 KB)

Thanks alot and best regards,

Saber