Re: [tpmdd-devel] IA64 infineon 1.1 trouble

[Alex W. <ale...@hp...>]

On Fri, 2007-02-09 at 15:54 -0700, Bryan T. McAulay wrote:
> Greetings,
> 
> I am having trouble bringing up the Infineon 1.1 tpm on my HP Rx3600 
> (ZX-2) IA64. In the process I have done the following:
> 
> * Enabled the tpm under efi.
> * Compiled and run Linux Kernel 2.6.19.2 with the tpm built in.
> ** I have also built and run the same with the tpm as a module.
> * PNP ACPI is also built into the kernel.
> 
> When the system is booted, the /dev/tpm file has not been created and I 
> get the following in dmesg:
> 
> pnp: the driver 'tpm_inf_pnp' has been registered
> pnp: match found with the PnP device '00:08' and the driver 'tpm_inf_pnp'
> tpm_inf_pnp: probe of 00:08 failed with error -22

Hi Bryan,

   I think if you decode the device address from the PnP info
(originally from the ACPI info), you'll find the device lives in MMIO
address space on the rx3600.  Unfortunately the current set of TPM
drivers only seem to support TPMs accessible via I/O port space.
Thanks,

	Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.