UEFI Firmware for xavier

Robotics & Edge Computing Jetson Systems Jetson AGX Xavier
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  1. Where can I download the UEFI Firmware for xavier R35.2.1?
  2. How to disable pcie c0 in UEFI ?
  3. How to build the UEFI Firmware for xavier ?
  4. How to burn new UEFI Firmware for xavier ?
2

  1. download source
    GitHub - NVIDIA/edk2-nvidia: NVIDIA EDK2 platform support

  2. UEFI also reads the device tree. So you need to disable C0 in your device tree

  3. The github website has the instrutions

  4. Replace the old uefi binary in your Linux_for_Tegra/bootloader with the new UEFI binary and reflash.

3

bootloader/NOTICE.uefi ?

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bootloader/uefi_jetson.bin ?

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this one.

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UEFI also uses the same device tree and kernel.

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UEFI does not use kernel. Just device tree.

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hardware/nvidia/platform/t19x/galen/kernel-dts/common/tegra194-p2888-0000-a00.dtsi ？

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There is no standard answer for which dtb you need to modify. Just check your flash log to know which dtb is in use and then start to track your code.

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How to enable UEFI debug ?

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When you built out UEFI binary, there would be 2 version, one release version and another one is debug version.

Take the debug version to put in your BSP directory.

13

thanks.

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UEFI‘s device tree , how to replace ?

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it is from same kernel dtb under Linux_for_Tegra/kernel/dtb.

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thanks.

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