Power-cycle PCIe

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Xavier
3

Hi,

AGX doesn’t support hot plug and unplug. If you want to have power off slot regulators then you need completely unbind Tegra PCIe driver for that particular controller instance.

cd /sys/bus/platform/drivers/tegra-pcie-dw
echo 141a0000.pcie > unbind #To unbind EP client driver, power down PCIe controller and power off slot regulators

echo 141a0000.pcie > bind #To power on slot regulators, power up PCIe controller and bind EP client driver.

Thanks,
Manikanta