tree fdd05ffdd8224fcc5844e5edd46ba90e032d14d3
parent c80a0e4f88ec93edcda2540747cb549927b24a32
author Patrick Delaunay <patrick.delaunay@foss.st.com> 1624884960 +0200
committer Patrick Delaunay <patrick.delaunay@foss.st.com> 1626420526 +0200

stm32mp: cmd_stm32key: lock of PKH OTP after fuse

Lock the OTP value of key's hash after the command
$> stm32key fuse <address>

This operation forbids a second update of these OTP as they are
ECC protected in BSEC: any update of these OTP with a different value
causes a BSEC disturb error and the closed chip will be bricked.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>