From: Seiji Munetoh <seiji.munetoh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: tpmdd-devel
<tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Subject: Nuvoton NPCT650 I2C TPM issues
Date: Sat, 19 Aug 2017 21:47:28 +0900 [thread overview]
Message-ID: <CADX6gZxX-7SCayU7+E0dvr0O16j6+gpcZeF4OoK=dCpcepz14Q@mail.gmail.com> (raw)
Hi,
I'm trying to use Nuvoton NPCT650 I2C TPM with Raspberry Pi.
So far, the tpm_i2c_nuvoton driver (I tested 4.4, 4.9, and 4.12) do
not work with the NPCT650 TPM chip.
It seems the TPM requires some delay between I2C messages like
tpm_i2c_infinion driver do. However the i2c_smbus_* commands
used by the tpm_i2c_nuvoton driver does not support such delay.
The TPM itself seems to be functional since I can communicate
with the TPM by a python script.
regards,
--
Seiji
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