Re: [PATCH v7 1/3] docs: Add support for TPM devices over I2C bus

["Cédric Le Goater" <clg@kaod.org>]

>>>> +In case a ast2600-evb bmc machine is emulated and want to use TPM device
>>>> +attached to I2C bus, use the following command line:
>>>> +
>>>> +.. code-block:: console
>>>> +
>>>> +  qemu-system-arm -M ast2600-evb -nographic \
>>>> +    -kernel arch/arm/boot/zImage \
>>>> +    -dtb arch/arm/boot/dts/aspeed-ast2600-evb.dtb \
>>>> +    -initrd rootfs.cpio \
>>>> +    -chardev socket,id=chrtpm,path=/tmp/mytpm1/swtpm-sock \
>>>> +    -tpmdev emulator,id=tpm0,chardev=chrtpm \
>>>> +    -device tpm-tis-i2c,tpmdev=tpm0,bus=aspeed.i2c.bus.12,address=0x2e
>>>
>>> For testing, use this command to load the driver to the correct address:
>>>
>>> echo tpm_tis_i2c 0x2e > /sys/bus/i2c/devices/i2c-12/new_device
>>>
>>> (I don't know how specific we want to make the instructions, but
>>> adding a line like above would help others from having to re-discover
>>> the command).
>>
>> or/and add an avocado test for it. See tests/avocado/machine_aspeed.py.
>>
>> The avocado framework is a bit fragile when reading from the console but
>> we hope to fix that.
> 
> I never used it before so it will take little longer.
> 
> Is it required to merge this i2c work?

It isn't.

C.