PCIE is not working?

Hi team,

  I have jetson tx2 board with kernel 4.4.38-tegra. While giving lspci i'm not getting anything.
  following is the dmesg log.can anyone tell how to resolve that?
[    0.563334] Error in parsing node /plugin-manager/fragment-500-pcie-config: -22
[    0.606695] Error in parsing node /plugin-manager/fragment-500-e3325-pcie: -22
[    1.669071] iommu: Adding device 10003000.pcie-controller to group 50
[   17.989869] tegra-pcie 10003000.pcie-controller: 4x1, 1x1 configuration
[   18.014451] tegra-pcie 10003000.pcie-controller: PCIE: Enable power rails
[   18.031486] tegra-pcie 10003000.pcie-controller: probing port 0, using 4 lanes
[   18.062099] tegra-pcie 10003000.pcie-controller: probing port 2, using 1 lanes
[   18.501767] tegra-pcie 10003000.pcie-controller: link 0 down, retrying
[   18.905776] tegra-pcie 10003000.pcie-controller: link 0 down, retrying
[   19.309446] tegra-pcie 10003000.pcie-controller: link 0 down, retrying
[   19.311471] tegra-pcie 10003000.pcie-controller: link 0 down, ignoring
[   19.820670] tegra-pcie 10003000.pcie-controller: link 2 down, retrying
[   20.226168] tegra-pcie 10003000.pcie-controller: link 2 down, retrying
[   20.631949] tegra-pcie 10003000.pcie-controller: link 2 down, retrying
[   20.633974] tegra-pcie 10003000.pcie-controller: link 2 down, ignoring
[   20.633982] tegra-pcie 10003000.pcie-controller: PCIE: no end points detected
[   20.634185] tegra-pcie 10003000.pcie-controller: PCIE: Disable power rails

because of this PCI and Ethernet is not working…
Thanks,
Arun

What is currently connected to the PCIe slot? Is this the dev carrier board? Has it been flashed to R28.1, or is it using a previous release?