Secure96 TPM

[raghuncstate]

Hello,

After a little bit of effort I was able to bring up and talk to the SLB9670 TPM on a hikey board using the latest released 4.15 kernel for the board. To bring this up i had to go through creating device tree entries and modifying the vanilla kernel TPM driver for it to work with the SLB9670 TPM. I believe this procedure will be slightly different for every board and this repository seems like a good place to perhaps have some documentation on how to bring up the TPM on each of the 96boards ? I wouldnt mind helping out with this.
Another question is how we can go about getting a firmware update for the Secure96 TPM. Infineon only provides firmware updates through OEM's. A firmware update is required in the secure96 TPM to fix the RSA bug that was discovered a few months ago. Any pointers would be helpful.

Thanks

[jockebech]

Hi @raghuncstate ,

I'd be happy to host something like this here. You could start out by creating a SLB9670 folder and start with documentation there if you want to. Maybe some of my the information from my colleagues blog post here could be (re-)used.

Regarding the firmware update, the best thing I think I can do is try to provide pointer to how and where to get the fix. I cannot really workaround Infineon's requirement of being an OEM (note that I haven't tried apply any fix yet on my own Secure96, in fact I haven't done any work at all with the TPM so far).

[raghuncstate]

Thanks. Ill create a directory, throw some information on and create a pull request.