Messages in this thread | | | Date | Wed, 16 Sep 2015 09:13:31 +0200 | From | Jens Wiklander <> | Subject | Re: [PATCH v5 2/5] dt/bindings: add bindings for optee |
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On Tue, Sep 15, 2015 at 05:37:07PM -0500, Rob Herring wrote: > On 08/19/2015 03:40 AM, Jens Wiklander wrote: > > Introduces optee prefix and adds bindings for ARM TrustZone based OP-TEE > > implementation. > > > > Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> > > --- > > Documentation/devicetree/bindings/optee/optee.txt | 17 +++++++++++++++++ > > How about bindings/arm/firmware/... where the *other* TZ binding is located.
OK, I'll move it.
> > > Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + > > 2 files changed, 18 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/optee/optee.txt > > > > diff --git a/Documentation/devicetree/bindings/optee/optee.txt b/Documentation/devicetree/bindings/optee/optee.txt > > new file mode 100644 > > index 0000000..4a6ff10 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/optee/optee.txt > > @@ -0,0 +1,17 @@ > > +OP-TEE Device Tree Bindings > > + > > +OP-TEE is a piece of software using hardware features to provide a Trusted > > +Execution Environment. The security can be provided with ARM TrustZone, but > > +also by virtualization or a separate chip. As there's no single OP-TEE > > I don't see how the Linux side would not need to know what the > communication channel is whether it is smc, hvc, or something else.
I assume you're missing something similar to the "method" property defined for PSCI. I'll add that.
> > > +vendor we're using "optee" as the first part of compatible property, > > +indicating the OP-TEE protocol is used when communicating with the secure > > +world. > > + > > +* OP-TEE based on ARM TrustZone required properties: > > + > > +- compatible="optee,optee-tz" > > + > > +Example: > > + optee { > > + compatible="optee,optee-tz"; > > + }; > > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt > > index 8033919..17c2a7e 100644 > > --- a/Documentation/devicetree/bindings/vendor-prefixes.txt > > +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt > > @@ -141,6 +141,7 @@ nvidia NVIDIA > > nxp NXP Semiconductors > > onnn ON Semiconductor Corp. > > opencores OpenCores.org > > +optee OP-TEE, Open Portable Trusted Execution Environment > > ortustech Ortus Technology Co., Ltd. > > ovti OmniVision Technologies > > panasonic Panasonic Corporation > > >
Thanks, Jens
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