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authorJens Wiklander <jens.wiklander@linaro.org>2015-05-21 07:47:09 +0200
committerAlex Shi <alex.shi@linaro.org>2017-07-06 11:07:39 +0800
commit78668d8100b8b0756f6e7b72d2b90b7e6192db73 (patch)
tree97f0e7538d0258794e2682c230cf62779f5fe74e
parente059a7a5c045eaf0bf43d6fa29202a86e8319939 (diff)
downloadlinux-linaro-stable-78668d8100b8b0756f6e7b72d2b90b7e6192db73.tar.gz
dt/bindings: add bindings for optee
Introduces linaro prefix and adds bindings for ARM TrustZone based OP-TEE implementation. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> (cherry picked from commit c8bfafb1594435889b571b79325011e8b7fd087b) Signed-off-by: Alex Shi <alex.shi@linaro.org> Conflicts: Documentation/devicetree/bindings/vendor-prefixes.txt
-rw-r--r--Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.txt31
-rw-r--r--Documentation/devicetree/bindings/vendor-prefixes.txt2
2 files changed, 33 insertions, 0 deletions
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