root@jetson6:/home/jetson6# dmesg | egrep '(PCI|pcie)' [ 0.000000] PCI I/O : 0xffffffbefee00000 - 0xffffffbeffe00000 ( 16 MB) [ 0.821224] iommu: Adding device 14180000.pcie to group 0 [ 0.821915] iommu: Adding device 14100000.pcie to group 1 [ 0.822834] iommu: Adding device 14140000.pcie to group 2 [ 0.823599] iommu: Adding device 141a0000.pcie to group 3 [ 0.882507] GPIO line 490 (pcie-reg-enable) hogged as output/high [ 0.882549] GPIO line 289 (pcie-reg-enable) hogged as output/high [ 1.125826] PCI: CLS 0 bytes, default 64 [ 1.851021] Intel(R) 10GbE PCI Express Linux Network Driver - version 4.6.4 [ 1.868220] ehci-pci: EHCI PCI platform driver [ 1.868283] ohci-pci: OHCI PCI platform driver [ 12.759312] tegra-pcie-dw 14180000.pcie: Setting init speed to max speed [ 12.760614] OF: PCI: host bridge /pcie@14180000 ranges: [ 12.760629] OF: PCI: IO 0x38100000..0x381fffff -> 0x38100000 [ 12.760639] OF: PCI: MEM 0x1b40000000..0x1bffffffff -> 0x40000000 [ 12.760644] OF: PCI: MEM 0x1800000000..0x1b3fffffff -> 0x1800000000 [ 13.273008] tegra-pcie-dw 14180000.pcie: link is down [ 13.273202] tegra-pcie-dw 14180000.pcie: PCI host bridge to bus 0000:00 [ 13.273863] pci 0000:00:00.0: PCI bridge to [bus 01-ff] [ 13.274122] pcieport 0000:00:00.0: Signaling PME through PCIe PME interrupt [ 13.274128] pcie_pme 0000:00:00.0:pcie001: service driver pcie_pme loaded [ 13.274236] aer 0000:00:00.0:pcie002: service driver aer loaded [ 13.274416] pcie_pme 0000:00:00.0:pcie001: unloading service driver pcie_pme [ 13.274471] aer 0000:00:00.0:pcie002: unloading service driver aer [ 13.275979] tegra-pcie-dw 14180000.pcie: PCIe link is not up...! [ 13.276481] tegra-pcie-dw 14100000.pcie: Setting init speed to max speed [ 13.277480] OF: PCI: host bridge /pcie@14100000 ranges: [ 13.277492] OF: PCI: IO 0x30100000..0x301fffff -> 0x30100000 [ 13.277500] OF: PCI: MEM 0x1230000000..0x123fffffff -> 0x40000000 [ 13.277506] OF: PCI: MEM 0x1200000000..0x122fffffff -> 0x1200000000 [ 13.388744] tegra-pcie-dw 14100000.pcie: link is up [ 13.389033] tegra-pcie-dw 14100000.pcie: PCI host bridge to bus 0001:00 [ 13.402759] pci 0001:00:00.0: PCI bridge to [bus 01-ff] [ 13.403198] pcieport 0001:00:00.0: Signaling PME through PCIe PME interrupt [ 13.403202] pci 0001:01:00.0: Signaling PME through PCIe PME interrupt [ 13.403208] pcie_pme 0001:00:00.0:pcie001: service driver pcie_pme loaded [ 13.403356] aer 0001:00:00.0:pcie002: service driver aer loaded [ 13.405339] tegra-pcie-dw 14140000.pcie: Setting init speed to max speed [ 13.406179] OF: PCI: host bridge /pcie@14140000 ranges: [ 13.406192] OF: PCI: IO 0x34100000..0x341fffff -> 0x34100000 [ 13.406200] OF: PCI: MEM 0x12b0000000..0x12bfffffff -> 0x40000000 [ 13.406206] OF: PCI: MEM 0x1280000000..0x12afffffff -> 0x1280000000 [ 13.920959] tegra-pcie-dw 14140000.pcie: link is down [ 13.921168] tegra-pcie-dw 14140000.pcie: PCI host bridge to bus 0003:00 [ 13.921803] pci 0003:00:00.0: PCI bridge to [bus 01-ff] [ 13.922042] pcieport 0003:00:00.0: Signaling PME through PCIe PME interrupt [ 13.922049] pcie_pme 0003:00:00.0:pcie001: service driver pcie_pme loaded [ 13.922161] aer 0003:00:00.0:pcie002: service driver aer loaded [ 13.922336] pcie_pme 0003:00:00.0:pcie001: unloading service driver pcie_pme [ 13.922392] aer 0003:00:00.0:pcie002: unloading service driver aer [ 13.924162] tegra-pcie-dw 14140000.pcie: PCIe link is not up...! [ 13.924756] tegra-pcie-dw 141a0000.pcie: Setting init speed to max speed [ 13.925794] OF: PCI: host bridge /pcie@141a0000 ranges: [ 13.925821] OF: PCI: IO 0x3a100000..0x3a1fffff -> 0x3a100000 [ 13.925829] OF: PCI: MEM 0x1f40000000..0x1fffffffff -> 0x40000000 [ 13.925835] OF: PCI: MEM 0x1c00000000..0x1f3fffffff -> 0x1c00000000 [ 14.439636] tegra-pcie-dw 141a0000.pcie: link is down [ 14.439839] tegra-pcie-dw 141a0000.pcie: PCI host bridge to bus 0005:00 [ 14.440510] pci 0005:00:00.0: PCI bridge to [bus 01-ff] [ 14.440806] pcieport 0005:00:00.0: Signaling PME through PCIe PME interrupt [ 14.440812] pcie_pme 0005:00:00.0:pcie001: service driver pcie_pme loaded [ 14.440955] aer 0005:00:00.0:pcie002: service driver aer loaded [ 14.441111] pcie_pme 0005:00:00.0:pcie001: unloading service driver pcie_pme [ 14.441211] aer 0005:00:00.0:pcie002: unloading service driver aer [ 14.443133] tegra-pcie-dw 141a0000.pcie: PCIe link is not up...!