[PATCH master] i.MX: HAB: fix i.MX8MP field-return fuse

[Marco Felsch]

On 25-03-10, Ahmad Fatoum wrote:
> Hello Marco,
> 
> On 3/10/25 12:36, Marco Felsch wrote:
> > Current tests showed that fusing just the single field-return bit(0) on
> > i.MX8MP SoCs brick the device.
> 
> So such a device is bricked permanently with no way to upload
> a bootloader again to fuse the remainder of the bits?

Yes, as written here [3], the device isnow in "device asserts security
violation" state, what ever this means but maybe: "I refuse to power
up".

[3] https://lore.kernel.org/all/a9ebece9-4ab6-4bca-bebe-985e0bf95278@oss.nxp.com/

> Interesting thing to not document :/

Took us 2 devices to figure it out :/ We also don't know why NXP doesn't
care and don't update the (S)TRM since the v1 of [3] is 9months old.

Regards,
  Marco