Renesas usb 3.0 driver disable power management

LnkCap: Port #0, Speed 5GT/s, Width x2, ASPM L0s L1, Exit Latency L0s TAbort- SERR- TAbort- SERR- TAbort- Reset- FastB2B. tegra-pcie 10003000.pcie-controller: speed change : Gen-1 -> Gen-2Р”В 0:01.0 PCI bridge: NVIDIA Corporation Device 10e5 (rev a1) (prog-if 00 )Р”В¬ontrol: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx. aer 0000:00:01.0:pcie02: service driver aer loaded pcie_pme 0000:00:01.0:pcie01: service driver pcie_pme loaded pci 0000:01:00.0: Signaling PME through PCIe PME interrupt pcieport 0000:00:01.0: Signaling PME through PCIe PME interrupt pci_bus 0000:01: busn_res: end is updated to 01 pci 0000:01:00.0: PME# supported from D0 D3hot D3cold pci 0000:00:01.0: bridge configuration invalid (), reconfiguring pci 0000:00:01.0: PME# supported from D0 D1 D2 D3hot D3cold tegra-pcie 10003000.pcie-controller: PCI host bridge to bus 0000:00 tegra-pmc c360000.pmc: scratch reg offset dts data not presentР”Р„fter power cycle (working system): dmesg | grep pci DTS File Name: tegra186-tx2-cti-ASG002-USB3.dts tegra-pcie 10003000.pcie-controller: PCIE: no end points detectedР”В®cho 1 > /sys/bus/pci/rescan -> No output, no change to detected cards tegra-pcie 10003000.pcie-controller: link 2 down, ignoring tegra-pcie 10003000.pcie-controller: link 2 down, retrying tegra-pcie 10003000.pcie-controller: link 0 down, ignoring tegra-pcie 10003000.pcie-controller: link 0 down, retrying tegra-pcie 10003000.pcie-controller: probing port 2, using 1 lanes tegra-pcie 10003000.pcie-controller: probing port 0, using 2 lanes tegra-pcie 10003000.pcie-controller: PCIE: Enable power rails

tegra-pcie 10003000.pcie-controller: wrong configuration updated in DT, switching to default 2x1, 1x1, 1x1 configuration iommu: Adding device 10003000.pcie-controller to group 50

We are looking either for a way to kill power and bring it back or even better, a way to prevent the failure in the first case. For development this isnРІР‚в„ўt a major concern, however, we are developing a product which will be installed in remote locations, making this a serious issue. In this scenario the only resolution is a hard power cycle of the board. However, occasionally, after a power cycle the pcie-controller fails to find any end points.

Elroy Carrier Board from Connect Tech Industries:.

We are using the following hardware setup:

Renesas usb 3.0 driver disable power management