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[manuf] wipe AST config data from flash info page 0 after it is committed to OTP #24526

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timothytrippel opened this issue Sep 5, 2024 · 1 comment · Fixed by #24630
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[manuf] wipe AST config data from flash info page 0 after it is committed to OTP #24526

timothytrippel opened this issue Sep 5, 2024 · 1 comment · Fixed by #24630
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Component:Software Issue related to Software Manufacturing Issues related to manufacturing tasks (hw or sw) Priority:P1 Priority: high Type:Task Tasks, to-do list.
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Earlgrey-PROD.Pro...

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timothytrippel commented Sep 5, 2024 •
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During CP, the AST configuration data is written to flash info page 0. During FT, the data is copied from flash to OTP, here. However, after copying the data to OTP, it should also be wiped from flash.
@timothytrippel timothytrippel added Component:Software Issue related to Software Priority:P1 Priority: high Type:Task Tasks, to-do list. Manufacturing Issues related to manufacturing tasks (hw or sw) labels Sep 5, 2024
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CC: @benjbender

@timothytrippel timothytrippel self-assigned this Sep 23, 2024
timothytrippel added a commit to timothytrippel/opentitan that referenced this issue Sep 24, 2024
@timothytrippel
[manuf] erase AST config data from flash after use
eb1b3d1 
This updates the individualization firmware to erase the AST
configuration data from flash info after committing it to OTP.

This fixes lowRISC#24526.

Signed-off-by: Tim Trippel <[email protected]>
@timothytrippel timothytrippel mentioned this issue Sep 24, 2024
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Component:Software Issue related to Software Manufacturing Issues related to manufacturing tasks (hw or sw) Priority:P1 Priority: high Type:Task Tasks, to-do list.
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[manuf] erase AST config data from flash after use timothytrippel/opentitan
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