I’m trying to use an Advantech PCIe to 4x USB3 card plugged directly into a dev kit carrier that has a TX2i running a fresh install of JetPack 4.4. I see this in dmesg, and lspci does not detect the device.
[ 0.460432] iommu: Adding device 10003000.pcie-controller to group 50
[ 0.460446] arm-smmu: forcing sodev map for 10003000.pcie-controller
[ 0.880145] tegra-pcie 10003000.pcie-controller: 4x1, 1x1 configuration
[ 0.881112] tegra-pcie 10003000.pcie-controller: PCIE: Enable power rails
[ 0.881439] tegra-pcie 10003000.pcie-controller: probing port 0, using 4 lanes
[ 0.883941] tegra-pcie 10003000.pcie-controller: probing port 2, using 1 lanes
[ 1.297349] tegra-pcie 10003000.pcie-controller: link 0 down, retrying
[ 1.716389] tegra-pcie 10003000.pcie-controller: link 2 down, retrying
[ 2.119878] tegra-pcie 10003000.pcie-controller: link 2 down, retrying
[ 2.524117] tegra-pcie 10003000.pcie-controller: link 2 down, retrying
[ 2.526137] tegra-pcie 10003000.pcie-controller: link 2 down, ignoring
[ 2.731818] tegra-pcie 10003000.pcie-controller: PCI host bridge to bus 0000:00
[ 2.732262] tegra-pcie 10003000.pcie-controller: PCIE: Response decoding error, signature: 10010001