Understanding the Boot Flow Process

Note:

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:

media/image2.png

Notice that the BPMP processor runs:

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