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From: "Cédric Le Goater" <clg@kaod.org>
To: Ninad Palsule <ninad@linux.vnet.ibm.com>,
	Ninad Palsule <ninad@linux.ibm.com>, <qemu-devel@nongnu.org>
Cc: <joel@jms.id.au>, <andrew@aj.id.au>, <stefanb@linux.ibm.com>
Subject: Re: [PATCH 1/3] docs: Add support for TPM devices over I2C bus
Date: Fri, 24 Mar 2023 09:01:09 +0100	[thread overview]
Message-ID: <be542d13-ed97-39f6-7386-b83941563216@kaod.org> (raw)
In-Reply-To: <026d8d44-c698-189e-155d-ac9c23c4361b@linux.vnet.ibm.com>

On 3/24/23 06:11, Ninad Palsule wrote:
> Hello Cedric,
> 
> Joel helped me to configure the device and we are able to configure tpm device on ast2600-evb.
> 
> I will include this example in the documentation.
> 
> # uname -a
> Linux ast2600-evb 6.1.15 #1 SMP Thu Mar 23 20:48:29 CDT 2023 armv7l GNU/Linux
> # cat /etc/os-release
> NAME=Buildroot
> VERSION=2023.02-dirty
> ID=buildroot
> VERSION_ID=2023.02
> PRETTY_NAME="Buildroot 2023.02"
> 
> # echo tpm_tis_i2c 0x2e > /sys/bus/i2c/devices/i2c-12/new_device
> [   59.681684] tpm_tis_i2c 12-002e: 2.0 TPM (device-id 0x1, rev-id 1)
> [   59.703190] tpm tpm0: A TPM error (256) occurred attempting the self test
> [   59.705215] tpm tpm0: starting up the TPM manually
> [   59.892917] i2c i2c-12: new_device: Instantiated device tpm_tis_i2c at 0x2e
> # cd /sys/class/tpm/tpm0
> # ls
> dev                pcr-sha256         power              uevent
> device             pcr-sha384         subsystem
> pcr-sha1           pcr-sha512         tpm_version_major


Nice. Did you need any special support in the kernel ?

I could update this image for avocado tests :

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

Thanks,

C.


  reply	other threads:[~2023-03-24 15:19 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-23  3:01 [PATCH 0/3] Add support for TPM devices over I2C bus Ninad Palsule
2023-03-23  3:01 ` [PATCH 1/3] docs: " Ninad Palsule
2023-03-23  7:49   ` Cédric Le Goater
2023-03-23 22:11     ` Ninad Palsule
2023-03-24  3:23     ` Ninad Palsule
2023-03-24  5:11       ` Ninad Palsule
2023-03-24  8:01         ` Cédric Le Goater [this message]
2023-03-24 12:50           ` Ninad Palsule
2023-03-23  3:01 ` [PATCH 2/3] TPM TIS: " Ninad Palsule
2023-03-23  7:44   ` Cédric Le Goater
2023-03-23 15:35     ` Ninad Palsule
2023-03-23  3:01 ` [PATCH 3/3] New I2C: " Ninad Palsule
2023-03-23  8:37   ` Cédric Le Goater
2023-03-23 22:32     ` Ninad Palsule
2023-03-24  8:06       ` Cédric Le Goater
2023-03-23 12:18   ` Stefan Berger
2023-03-23 20:07     ` Ninad Palsule
2023-03-23  7:23 ` [PATCH 0/3] " Cédric Le Goater
2023-03-23 22:35   ` Ninad Palsule

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