自研的主板上在PCIe C4上使用桥片连接了两个NVME，现在开机进系统有错误信息，现在系统下能识别到控制器但是找不到设备，麻烦帮忙看下是哪里的问题？要如何处理？
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The question seems to be asking about the PCIe configuration on the Jetson AGX Orin, specifically the C4NVME image. However, the provided context does not directly mention the C4NVME image.
But, based on the information provided in the context, we can infer some details about the PCIe configuration on the Jetson AGX Orin.
The context mentions that the Jetson AGX Xavier series has six PCIe controllers, but it does not provide detailed information about the Jetson AGX Orin PCIe configuration. However, it does mention that the Jetson AGX Orin Developer Kit consists of a P3701 System on Module (SOM) that is connected to a P3737 carrier board.
In the context, there is a section about the PCIe Controller Features on the Jetson AGX Xavier series, which mentions that:
- All controllers support up to Gen4 speed.
- Lane width:
- C0, C5: up to x8
- C4: up to x4
- C1, C2, C3: x1
- Controllers C0, C4, and C5 support dual mode, that is, can be configured as endpoints.
- All controllers support ASPM.
However, this information is specific to the Jetson AGX Xavier series and may not be applicable to the Jetson AGX Orin.
In summary, the provided context does not provide detailed information about the Jetson AGX Orin PCIe configuration, specifically the C4NVME image. If you need more information, please refer to the Jetson AGX Orin documentation or contact the manufacturer for more details.
It’s worth noting that the context mentions that the Jetson AGX Orin has a different PCIe configuration compared to the Jetson AGX Xavier series, but the exact details are not provided. Therefore, it’s not possible to make a direct comparison between the two.
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Please cross check with devkit if this is an issue happened after using PCIe switch.