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docs: Add note about regenerating CSME

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CSME image may need to be configured to disable PTT, Boot Guard, and
locking of the descriptor.

Signed-off-by: Tim Crawford <tcrawford@system76.com>
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Tim Crawford 2022-06-22 09:20:34 -06:00 committed by Jeremy Soller
parent 143af4d549
commit b2d8bda2b9
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docs/adding-a-new-board.md
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@ -78,6 +78,12 @@ cp coreboot/.config models/<model>/coreboot.config
`generate.sh` does not create `devicetree.cb`. Some values for this file can be
produced using the `devicetree.py` script.
## Configuring Intel CSME
The CSME image may need to be regenerated. Common changes that may be required
are disabling Platform Trust Technology (PTT) so the discrete TPM device will
work, and changing the Boot Guard profile to disable verified boot.
## Porting System76 EC
To port System76 EC firmware to a new board, see the EC documentation.