[U-Boot] tpm TIS TPMv2.0

Miquel Raynal miquel.raynal at bootlin.com
Mon Jun 18 09:47:13 UTC 2018


Hi Martin,

> > > Nevertheless one question: Why did you define another dts binding
> > > instead of using that one what is already available on the Linux
> > > kernel? There is "tcg,tpm_tis-spi"  already defined.  
> > 
> > I did not know this one, actually I mostly worked on U-Boot.
> > 
> > However, this compatible is misleading as it does not make any difference
> > between v1.x and v2.0 specification.  
> 
> But on the other hand it would give us a chance to determine the version at 
> runtime what could be beneficial for firmware updates. But this is a special case.

We already discussed that point on the ML and decided to choose the
version at compile time. I did not have the firmware update case in
mind though.

Regards,
Miquèl


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