Re: [PATCH v7 0/3] Add support for TPM devices over I2C bus

[Cédric Le Goater]

> > > However on a clean boot into the TPM, the u-boot tpm commands fail:
> > >
> > > ast# tpm info
> > > tpm@2e v2.0: VendorID 0x1014, DeviceID 0x0001, RevisionID 0x01 [closed]
> > > ast# tpINTERRUPT>
> > > ast# tpm init
> > > ast# tpm info
> > > tpm@2e v2.0: VendorID 0x1014, DeviceID 0x0001, RevisionID 0x01 [open]
> > > ast# tpm pcr_read 0 0x81000000
> > > Error: 256
> > > ast# md.l 0x81000000 16
> > > 81000000: 00000000 00000000 00000000 00000000    ................
> > > 81000010: 00000000 00000000 00000000 00000000    ................
> > > 81000020: 00000000 00000000 00000000 00000000    ................
> > > 81000030: 00000000 00000000 00000000 00000000    ................
> > > 81000040: 00000000 00000000 00000000 00000000    ................
> > > 81000050: 00000000 00000000                      ........
> > >
> > > This doesn't need to block merging into qemu, as the model works fine
> > > for pcr measurement and accessing under Linux. However it would be
> > > good to work though these issues in case there's a modelling
> > > discrepancy.
> >
> >
> > Yes, Please provide me details on how to reproduce it. I will take a look.
>
> This is the buildroot tree I've been using for testing:
>
> https://github.com/shenki/buildroot/commits/ast2600-tpm
>
> git clone https://github.com/shenki/buildroot -b ast2600-tpm
> cd buildroot
> make O=ast2600evb aspeed_ast2600evb_defconfig

I have pushed binaries here also :

  
https://github.com/legoater/qemu-aspeed-boot/tree/master/images/ast2600-evb/buildroot-2023.02-tpm

Cheers,

C.