berk3399 ~ # dmesg | grep pcie
[   17.843151] rockchip-pcie f8000000.pcie: no vpcie12v regulator found
[   17.843762] rockchip-pcie f8000000.pcie: no vpcie3v3 regulator found
[   17.844344] rockchip-pcie f8000000.pcie: no vpcie1v8 regulator found
[   17.844917] rockchip-pcie f8000000.pcie: no vpcie0v9 regulator found
[   18.345574] rockchip-pcie f8000000.pcie: PCIe link training gen1 timeout!
[   18.346300] rockchip-pcie: probe of f8000000.pcie failed with error -110