如何设置pcie2.0

Robotics & Edge Computing Jetson Systems Jetson AGX Orin
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jp6.2 agx orin，客户自定板子

板子上有一个pcie4.0接口。但是客户用的视屏采集卡只支持pcie2.0，能否通过软件把pcie接口限制为pcie2.0

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The Jetson AGX Orin is a powerful AI computer module developed by NVIDIA. It is part of the Jetson Orin series, which also includes the Jetson Orin NX and Jetson Orin Nano.

The Jetson AGX Orin module has several key features, including:

  1. PCIe Endpoint Mode: The Jetson AGX Orin supports PCIe endpoint mode, which allows it to act as a PCIe endpoint device. This feature is useful for applications that require high-speed data transfer between devices.
  2. Bootloader: The Jetson AGX Orin uses a bootloader to manage the boot process. The bootloader is responsible for loading the operating system and initializing the hardware.
  3. Toolchain: The Jetson AGX Orin uses a toolchain to compile and build applications. The toolchain includes a compiler, linker, and other tools necessary for building applications.
  4. Kernel: The Jetson AGX Orin uses a Linux kernel to manage the operating system. The kernel provides a layer of abstraction between the hardware and the operating system.
  5. Camera Interface: The Jetson AGX Orin has a camera interface that allows it to connect to cameras and other imaging devices.
  6. LSIO: The Jetson AGX Orin has a low-speed I/O (LSIO) interface that provides a low-speed interface for connecting peripherals such as keyboards and mice.
  7. HSIO: The Jetson AGX Orin has a high-speed I/O (HSIO) interface that provides a high-speed interface for connecting peripherals such as storage devices and network interfaces.
  8. DisplayPort: The Jetson AGX Orin has a DisplayPort interface that allows it to connect to displays and other video devices.
  9. Security Engine: The Jetson AGX Orin has a security engine that provides a secure environment for running applications.
  10. Power Modes (Profiles): The Jetson AGX Orin has multiple power modes (profiles) that allow it to optimize power consumption for different applications.
  11. RTC: The Jetson AGX Orin has a real-time clock (RTC) that provides a clock signal for the system.
  12. System: The Jetson AGX Orin has a system interface that provides a interface for connecting peripherals such as sensors and actuators.

In comparison to other Jetson modules, the Jetson AGX Orin has a more powerful GPU and a more advanced CPU. It also has more memory and storage options, making it a good choice for applications that require high-performance computing and AI processing.

The Jetson AGX Orin is also compatible with a wide range of software development kits (SDKs) and tools, including the NVIDIA JetPack SDK, which provides a comprehensive set of tools and libraries for developing AI applications.

In terms of PCIe, the Jetson AGX Orin supports PCIe 4.0, which provides a high-speed interface for connecting peripherals such as storage devices and network interfaces. The module also supports PCIe endpoint mode, which allows it to act as a PCIe endpoint device.

Overall, the Jetson AGX Orin is a powerful and flexible AI computer module that is well-suited for a wide range of applications, including robotics, autonomous vehicles, and smart cities.

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please add “max-link = <2>” to your device tree under corresponding PCIe controller and it will limit max speed to gen2 only.