Understanding the Boot Flow Process


NVIDIA checks all binary integrity up to primary IFS image being loaded. Internal detail is not fully disclosed.

With Orin, the PSC processor handles all security (such as authentication/decryption) for BPMP_BR and MB1. Later in the process, PSC also owns all security keys for the system.

Upon power-up of the device, the boot flow sequence of events is as follows:


Notice that the BPMP processor runs:

  • BootROM
  • MB1
Notice that the CCPLEX processor runs:
  • MB2
Notice that the PSC processor runs:
  • PSC-BootROM
  • PSC_BL
  • PSC-FW