fpga通过pcie挂到rk3399pro上失败（error -110）

错误输出如下：
PCI I/O : 0xffffffbffee00000 - 0xffffffbfffe00000   (    16 MB)
[    0.124672] PCI/MSI: /interrupt-controller@fee00000/interrupt-controller@fee20000 domain created
[    2.081897] PCI: CLS 0 bytes, default 64
[    2.321413] rockchip-pcie f8000000.pcie: GPIO lookup for consumer ep
[    2.321425] rockchip-pcie f8000000.pcie: using device tree for GPIO lookup
[    2.321450] of_get_named_gpiod_flags: parsed 'ep-gpios' property of node '/pcie@f8000000[0]' - status (0)
[    2.321668] rockchip-pcie f8000000.pcie: no vpcie3v3 regulator found
[    2.328052] rockchip-pcie f8000000.pcie: no vpcie1v8 regulator found
[    2.334421] rockchip-pcie f8000000.pcie: no vpcie0v9 regulator found
[    2.862096] rockchip-pcie f8000000.pcie: PCIe link training gen1 timeout!
[    2.869011] rockchip-pcie: probe of f8000000.pcie failed with error -110
[    3.819314] ehci-pci: EHCI PCI platform driver


lspci也扫不到任何设备，请教下各位大佬这个报错该怎么解决？或者说该怎么排查？