Fuse Burning Responsibilities
Applications can program a fuse by applying voltage using fuse burning routines found in the boot loader and the kernel APIs. The fuses and ownership required for Secure Boot are as follows:
NVIDIA Programmed
- 128-bit Unique ID (UID), no two Tegra chips have the same UID.
- NVIDIA production mode
Customer Programmed and Owned
- FUSE_BOOT_SECURITY_INFO
- 3 OEM Public keys hashed as SHA-512 in fuses with 2 revocable.
- ODM fuse keys, stored in PSC fuse region.
- ODM Production Mode (FUSE_SECURITY_MODE)
CAUTION:
ODM Production Mode fuse disables further fuse burning except reserved ODM fuses. Therefore, burn the ODM Production Mode fuse last.