Jetson AGX Xavier Pcie(Root) detection of Device needs jetson reboot

Robotics & Edge Computing Jetson Systems Jetson AGX Xavier
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tegra194-pcie bind/unbind works pretty well without commenting out “enable-power-down” in device tree.

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@vkorshun , Is this for my above mentioned scenarion ?

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@prasanna
Yep. I have similar setup: FPGA devkit connected to PCIe. Even if I power up FPGA devkit after Xavier boot - bind/unbind pcie driver makes it visible via lspci and my device driver that I insmod after - works pretty well. So no reboot of Xavier is required during the FPGA design workflow.

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Thanks @vkorshun,
Which is the Jetpack version you are using ?
Mine is L4T BSP Information:

R32 , REVISION: 4.2

and the kernel version is “Linux jetson 4.9.140-tegra #4 SMP PREEMPT Tue Mar 23 11:17:00 IST 2021 aarch64 aarch64 aarch64 GNU/Linux”.

tegra-l4t-r32.4.3

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@prasanna
I’m using the latest one:
#R35 (release), REVISION: 3.1
kernel: 5.10.104-tegra #1 SMP PREEMPT Sun Mar 19 07:55:28 PDT 2023 aarch64 aarch64 aarch64 GNU/Linux