From mboxrd@z Thu Jan 1 00:00:00 1970 From: jens.wiklander@linaro.org (Jens Wiklander) Date: Fri, 10 Mar 2017 16:11:39 +0100 Subject: [PATCH v16 1/5] dt/bindings: add bindings for optee In-Reply-To: <1489158703-22241-1-git-send-email-jens.wiklander@linaro.org> References: <1489158703-22241-1-git-send-email-jens.wiklander@linaro.org> Message-ID: <1489158703-22241-2-git-send-email-jens.wiklander@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Introduces linaro prefix and adds bindings for ARM TrustZone based OP-TEE implementation. Acked-by: Rob Herring Signed-off-by: Jens Wiklander --- .../bindings/arm/firmware/linaro,optee-tz.txt | 31 ++++++++++++++++++++++ .../devicetree/bindings/vendor-prefixes.txt | 1 + 2 files changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.txt diff --git a/Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.txt b/Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.txt new file mode 100644 index 000000000000..d38834c67dff --- /dev/null +++ b/Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.txt @@ -0,0 +1,31 @@ +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. + +We're using "linaro" as the first part of the compatible property for +the reference implementation maintained by Linaro. + +* OP-TEE based on ARM TrustZone required properties: + +- compatible : should contain "linaro,optee-tz" + +- method : The method of calling the OP-TEE Trusted OS. Permitted + values are: + + "smc" : SMC #0, with the register assignments specified + in drivers/tee/optee/optee_smc.h + + "hvc" : HVC #0, with the register assignments specified + in drivers/tee/optee/optee_smc.h + + + +Example: + firmware { + optee { + compatible = "linaro,optee-tz"; + method = "smc"; + }; + }; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index ec0bfb9bbebd..e18a96cf7c3a 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -168,6 +168,7 @@ lego LEGO Systems A/S lenovo Lenovo Group Ltd. lg LG Corporation licheepi Lichee Pi +linaro Linaro Limited linux Linux-specific binding lltc Linear Technology Corporation lsi LSI Corp. (LSI Logic) -- 2.7.4