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SubjectRe: [BUG] Nuvoton NCPT650 TPM 2.0 mode not working
On Sun, 2018-11-11 at 21:09 +0100, Michael Niewöhner wrote:
> On Sun, 2018-11-11 at 10:57 -0800, James Bottomley wrote:
> > Well, I still think the ACPI setup is incorrect. What's in
> > /sys/class/platform (should be directories of ACPI devices)? The
> > TPM is supposed to show up as MSFT0101. If it doesn't is there any
> > other device string in there that might be a TPM?
> Nope. I'm not sure if it should show up in ACPI... isn't TPM 2.0 I2C?

Your ACPI parser identifies it here:

> [ 0.003517] ACPI: TPM2 0x000000009E490ED8 000034 (v03 LENOVO TC-S06 00001300 AMI 00000000)

So it has to be a device in the platform directory. What is in this
directory? To find the TPM it probably has something TPM like in the
firmware_node description:


Mine says

jejb@jarvis:~/git/linux/drivers> cat /sys/devices/platform/MSFT0101\:00/firmware_node/description
TPM 2.0 Device


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