Re: [PATCH v2 2/2] tpm: tis: add support for MMIO TPM on SynQuacer

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, 2020-01-23 at 13:29 +0100, Ard Biesheuvel wrote:
> On Thu, 23 Jan 2020 at 13:27, Jarkko Sakkinen
> <jarkko.sakkinen@xxxxxxxxxxxxxxx> wrote:
> > On Tue, 2020-01-14 at 15:16 +0100, Ard Biesheuvel wrote:
> > > When fitted, the SynQuacer platform exposes its SPI TPM via a MMIO
> > > window that is backed by the SPI command sequencer in the SPI bus
> > > controller. This arrangement has the limitation that only byte size
> > > accesses are supported, and so we'll need to provide a separate set
> > > of read and write accessors that take this into account.
> > 
> > What is SynQuacer platform?
> > 
> 
> It is an arm64 SoC manufactured by Socionext.
> 
> > I'm also missing a resolution why tpm_tis.c is extended to handle both
> > and not add tpm_tis_something.c instead. It does not follow the pattern
> > we have in place (e.g. look up tpm_tis_spi.c).
> > 
> 
> We could easily do that instead, if preferred. It's just that it would
> duplicate a bit of code.

I'm fine with that. Overally I think it is cleaner flow.

/Jarkko




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Linux Kernel]     [Linux Kernel Hardening]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux SCSI]

  Powered by Linux