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DRA829VXEVM: enable PCIe Backplane

Part Number: DRA829VXEVM

We try to enable „PCIe Backplane“ in TI chip.

 So follow the “processor-sdk-linux-docs” add "k3-j721e-pcie-backplane.dtso"

 

But we get error below(dmesg):

 

0.568502] pci_epf_ntb pci-epf-ntb: Failed to create NTB EPC

[    0.770120] pci_epf_ntb pci-epf-ntb: Failed to create NTB EPC

[    2.118999] OF: ERROR: Bad of_node_put() on /epf_bus/ntb

[    2.175033]  pci_epf_ntb_probe+0x110/0xcb0

[    2.231317] pci_epf_ntb pci-epf-ntb: Failed to create NTB EPC

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