[PATCH 2/4] tools: mkeficapsule: remove device-tree related operation

[Ilias Apalodimas]

Akashi-san,

On Wed, May 12, 2021 at 01:57:51PM +0900, AKASHI Takahiro wrote:
> As we discussed, "-K" and "-D" options have nothing to do with
> creating a capsule file. The same result can be obtained by
> using standard commands like:
>   === signature.dts ===
>   /dts-v1/;
>   /plugin/;
> 
>   &{/} {
>         signature {
>                 capsule-key = /incbin/("SIGNER.esl");
>         };
>   };
>   ===
>   $ dtc -@ -I dts -O dtb -o signature.dtbo signature.dts
>   $ fdtoverlay -i test.dtb -o test_sig.dtb -v signature.dtbo
> 
> So just remove this feature.
> (Effectively revert the commit 322c813f4bec ("mkeficapsule: Add support
> for embedding public key in a dtb").)
> 
> The same feature is implemented by a shell script (tools/fdtsig.sh).
 

The only reason I can see to keep this, is if mkeficapsule gets included
intro distro packages in the future.  That would make end users life a bit
easier, since they would need a single binary to create the whole
CapsuleUpdate sequence. 

Regards
/Ilias