rtml@rtml-desktop:/sys/kernel/config/pci_ep$ dmesg|grep pci [ 0.920679] iommu: Adding device 141a0000.pcie_ep to group 0 [ 0.921579] iommu: Adding device 14180000.pcie to group 1 [ 0.922439] iommu: Adding device 14100000.pcie to group 2 [ 0.923218] iommu: Adding device 14140000.pcie to group 3 [ 0.991388] GPIO line 490 (pcie-reg-enable) hogged as output/high [ 0.991429] GPIO line 289 (pcie-reg-enable) hogged as output/high [ 2.173736] ehci-pci: EHCI PCI platform driver [ 2.173807] ohci-pci: OHCI PCI platform driver [ 4.612805] tegra-pcie-dw 141a0000.pcie_ep: invalid max-speed (err=-22), set to Gen-1 [ 4.613041] tegra-pcie-dw 141a0000.pcie_ep: Setting init speed to max speed [ 4.614644] tegra-pcie-dw 14180000.pcie: Setting init speed to max speed [ 4.615646] OF: PCI: host bridge /pcie@14180000 ranges: [ 5.129496] tegra-pcie-dw 14180000.pcie: link is down [ 5.129758] tegra-pcie-dw 14180000.pcie: PCI host bridge to bus 0000:00 [ 5.129766] pci_bus 0000:00: root bus resource [bus 00-ff] [ 5.129774] pci_bus 0000:00: root bus resource [io 0x0000-0xfffff] (bus address [0x38100000-0x381fffff]) [ 5.129780] pci_bus 0000:00: root bus resource [mem 0x1b40000000-0x1bffffffff] (bus address [0x40000000-0xffffffff]) [ 5.129784] pci_bus 0000:00: root bus resource [mem 0x1800000000-0x1b3fffffff pref] [ 5.129828] pci 0000:00:00.0: [10de:1ad0] type 01 class 0x060400 [ 5.129991] pci 0000:00:00.0: PME# supported from D0 D3hot D3cold [ 5.130580] pci 0000:00:00.0: PCI bridge to [bus 01-ff] [ 5.130604] pci 0000:00:00.0: Max Payload Size set to 256/ 256 (was 256), Max Read Rq 512 [ 5.130860] pcieport 0000:00:00.0: Signaling PME through PCIe PME interrupt [ 5.130867] pcie_pme 0000:00:00.0:pcie001: service driver pcie_pme loaded [ 5.130974] aer 0000:00:00.0:pcie002: service driver aer loaded [ 5.131142] pcie_pme 0000:00:00.0:pcie001: unloading service driver pcie_pme [ 5.131194] aer 0000:00:00.0:pcie002: unloading service driver aer [ 5.131269] pci_bus 0000:01: busn_res: [bus 01-ff] is released [ 5.131422] pci_bus 0000:00: busn_res: [bus 00-ff] is released [ 5.133200] tegra-pcie-dw 14180000.pcie: PCIe link is not up...! [ 5.133681] tegra-pcie-dw 14100000.pcie: Setting init speed to max speed [ 5.134345] OF: PCI: host bridge /pcie@14100000 ranges: [ 5.244969] tegra-pcie-dw 14100000.pcie: link is up [ 5.245253] tegra-pcie-dw 14100000.pcie: PCI host bridge to bus 0001:00 [ 5.245260] pci_bus 0001:00: root bus resource [bus 00-ff] [ 5.245283] pci_bus 0001:00: root bus resource [io 0x100000-0x1fffff] (bus address [0x30100000-0x301fffff]) [ 5.245289] pci_bus 0001:00: root bus resource [mem 0x1230000000-0x123fffffff] (bus address [0x40000000-0x4fffffff]) [ 5.245294] pci_bus 0001:00: root bus resource [mem 0x1200000000-0x122fffffff pref] [ 5.245331] pci 0001:00:00.0: [10de:1ad2] type 01 class 0x060400 [ 5.245468] pci 0001:00:00.0: PME# supported from D0 D3hot D3cold [ 5.246099] pci 0001:01:00.0: [1b4b:9171] type 00 class 0x010601 [ 5.246219] pci 0001:01:00.0: reg 0x10: [io 0x8000-0x8007] [ 5.246294] pci 0001:01:00.0: reg 0x14: [io 0x8040-0x8043] [ 5.246356] pci 0001:01:00.0: reg 0x18: [io 0x8100-0x8107] [ 5.246419] pci 0001:01:00.0: reg 0x1c: [io 0x8140-0x8143] [ 5.246493] pci 0001:01:00.0: reg 0x20: [io 0x800000-0x80000f] [ 5.246556] pci 0001:01:00.0: reg 0x24: [mem 0x00900000-0x009001ff] [ 5.246619] pci 0001:01:00.0: reg 0x30: [mem 0xd0000000-0xd000ffff pref] [ 5.246954] pci 0001:01:00.0: PME# supported from D3hot [ 5.258064] pci 0001:00:00.0: BAR 14: assigned [mem 0x1230000000-0x12300fffff] [ 5.258070] pci 0001:00:00.0: BAR 13: assigned [io 0x100000-0x100fff] [ 5.258078] pci 0001:01:00.0: BAR 6: assigned [mem 0x1230000000-0x123000ffff pref] [ 5.258083] pci 0001:01:00.0: BAR 5: assigned [mem 0x1230010000-0x12300101ff] [ 5.258148] pci 0001:01:00.0: BAR 4: assigned [io 0x100000-0x10000f] [ 5.258211] pci 0001:01:00.0: BAR 0: assigned [io 0x100010-0x100017] [ 5.258239] pci 0001:01:00.0: BAR 2: assigned [io 0x100018-0x10001f] [ 5.258313] pci 0001:01:00.0: BAR 1: assigned [io 0x100020-0x100023] [ 5.258340] pci 0001:01:00.0: BAR 3: assigned [io 0x100024-0x100027] [ 5.258413] pci 0001:00:00.0: PCI bridge to [bus 01-ff] [ 5.258418] pci 0001:00:00.0: bridge window [io 0x100000-0x100fff] [ 5.258425] pci 0001:00:00.0: bridge window [mem 0x1230000000-0x12300fffff] [ 5.258454] pci 0001:00:00.0: Max Payload Size set to 256/ 256 (was 256), Max Read Rq 512 [ 5.258547] pci 0001:01:00.0: Max Payload Size set to 256/ 512 (was 128), Max Read Rq 512 [ 5.258866] pcieport 0001:00:00.0: Signaling PME through PCIe PME interrupt [ 5.258870] pci 0001:01:00.0: Signaling PME through PCIe PME interrupt [ 5.258877] pcie_pme 0001:00:00.0:pcie001: service driver pcie_pme loaded [ 5.259019] aer 0001:00:00.0:pcie002: service driver aer loaded [ 5.261074] tegra-pcie-dw 14140000.pcie: Setting init speed to max speed [ 5.261920] OF: PCI: host bridge /pcie@14140000 ranges: [ 5.777308] tegra-pcie-dw 14140000.pcie: link is down [ 5.777582] tegra-pcie-dw 14140000.pcie: PCI host bridge to bus 0003:00 [ 5.777591] pci_bus 0003:00: root bus resource [bus 00-ff] [ 5.777598] pci_bus 0003:00: root bus resource [io 0x200000-0x2fffff] (bus address [0x34100000-0x341fffff]) [ 5.777620] pci_bus 0003:00: root bus resource [mem 0x12b0000000-0x12bfffffff] (bus address [0x40000000-0x4fffffff]) [ 5.777625] pci_bus 0003:00: root bus resource [mem 0x1280000000-0x12afffffff pref] [ 5.777667] pci 0003:00:00.0: [10de:1ad2] type 01 class 0x060400 [ 5.777813] pci 0003:00:00.0: PME# supported from D0 D3hot D3cold [ 5.778314] pci 0003:00:00.0: PCI bridge to [bus 01-ff] [ 5.778336] pci 0003:00:00.0: Max Payload Size set to 256/ 256 (was 256), Max Read Rq 512 [ 5.778569] pcieport 0003:00:00.0: Signaling PME through PCIe PME interrupt [ 5.778576] pcie_pme 0003:00:00.0:pcie001: service driver pcie_pme loaded [ 5.778682] aer 0003:00:00.0:pcie002: service driver aer loaded [ 5.778841] pcie_pme 0003:00:00.0:pcie001: unloading service driver pcie_pme [ 5.778913] aer 0003:00:00.0:pcie002: unloading service driver aer [ 5.778984] pci_bus 0003:01: busn_res: [bus 01-ff] is released [ 5.779113] pci_bus 0003:00: busn_res: [bus 00-ff] is released [ 5.780898] tegra-pcie-dw 14140000.pcie: PCIe link is not up...! [ 447.620184] pci_epf_nv_test pci_epf_nv_test.0: BAR0 RAM phys: 0x3f116e000 [ 447.620205] pci_epf_nv_test pci_epf_nv_test.0: BAR0 RAM IOVA: 0xffff0000 [ 447.620246] pci_epf_nv_test pci_epf_nv_test.0: BAR0 RAM virt: 0xffffff80117db000 [ 542.909160] tegra-pcie-dw 141a0000.pcie_ep: EP init done rtml@rtml-desktop:/sys/kernel/config/pci_ep$