From 78668d8100b8b0756f6e7b72d2b90b7e6192db73 Mon Sep 17 00:00:00 2001 From: Jens Wiklander Date: Thu, 21 May 2015 07:47:09 +0200 Subject: dt/bindings: add bindings for optee Introduces linaro prefix and adds bindings for ARM TrustZone based OP-TEE implementation. Acked-by: Rob Herring Signed-off-by: Jens Wiklander (cherry picked from commit c8bfafb1594435889b571b79325011e8b7fd087b) Signed-off-by: Alex Shi Conflicts: Documentation/devicetree/bindings/vendor-prefixes.txt --- .../bindings/arm/firmware/linaro,optee-tz.txt | 31 ++++++++++++++++++++++ .../devicetree/bindings/vendor-prefixes.txt | 2 ++ 2 files changed, 33 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 55df1d444e9f..fa9eba8dae07 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -127,6 +127,8 @@ lacie LaCie lantiq Lantiq Semiconductor lenovo Lenovo Group Ltd. lg LG Corporation +licheepi Lichee Pi +linaro Linaro Limited linux Linux-specific binding lsi LSI Corp. (LSI Logic) lltc Linear Technology Corporation -- cgit v1.2.3