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Trusted Platform Module 2.0 - Revision history
2026-05-02T04:28:29Z
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JulienB: page creation
2018-07-25T16:17:47Z
<p>page creation</p>
<p><b>New page</b></p><div>{{Under_Construction}}<br />
<br />
TPM 2.0 chips can be used with APF/OPOS SOMs. This page will summarize how to.<br />
<br />
We suppose you have developed a docking board with a TPM 2.0 chip connected to the SPI bus of the i.MX6UL(L).<br />
<br />
==Installation==<br />
===Kernel drivers===<br />
* Needed drivers are already installed with 4.17+ kernel on OPOS6UL(NANO)<br />
<br />
===Declare chip in device tree===<br />
buildroot/output/build/linux-4.17.4/arch/arm/boot/dts/imx6ul-imx6ull-opos6uldev.dtsi<br />
<br />
<pre class="config"><br />
&ecspi4 {<br />
pinctrl-names = "default";<br />
pinctrl-0 = <&pinctrl_ecspi4>;<br />
cs-gpios = <&gpio4 9 GPIO_ACTIVE_LOW>, <&gpio4 3 GPIO_ACTIVE_LOW>;<br />
status = "okay";<br />
<br />
tpm0: tpm_tis@0 {<br />
compatible = "st,st33htpm-spi";<br />
reg = <0>;<br />
spi-max-frequency = <1000000>;<br />
status = "okay";<br />
};<br />
/*<br />
spidev1: spi@1 {<br />
compatible = "spidev";<br />
reg = <1>;<br />
spi-max-frequency = <5000000>;<br />
};<br />
*/<br />
};<br />
</pre><br />
<br />
===Userspace tools===<br />
* TBDL<br />
<br />
==Usage==<br />
<br />
modprobe<br />
<br />
==Links==<br />
* https://www.youtube.com/watch?v=0qu9R7Tlw9o (Intel 2017)<br />
* https://www.youtube.com/watch?v=KyDkZkRPawM (Guerri FOSDEM 2017)<br />
* http://www.linux-magazine.com/Issues/2018/206/Trusted-Platform-Module<br />
* http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.145.1218&rep=rep1&type=pdf (A PROOF OF CONCEPT IMPLEMENTATION OF EAP-TLS WITH TPM SUPPORT)</div>
JulienB