Introduces optee prefix and adds bindings for ARM TrustZone based OP-TEE
implementation.
Signed-off-by: Jens Wiklander <jens.wiklander@xxxxxxxxxx>
---
.../bindings/arm/firmware/optee,optee-tz.txt | 29 ++++++++++++++++++++++
.../devicetree/bindings/vendor-prefixes.txt | 1 +
2 files changed, 30 insertions(+)
create mode 100644 Documentation/devicetree/bindings/arm/firmware/optee,optee-tz.txt
diff --git a/Documentation/devicetree/bindings/arm/firmware/optee,optee-tz.txt b/Documentation/devicetree/bindings/arm/firmware/optee,optee-tz.txt
new file mode 100644
index 0000000..0a8ed0d
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/firmware/optee,optee-tz.txt
@@ -0,0 +1,29 @@
+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
+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 : should contain "optee,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:
+ optee {
+ compatible = "optee,optee-tz";
+ method = "smc";
+ };
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 82d2ac9..38e632f 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -159,6 +159,7 @@ nxp NXP Semiconductors
okaya Okaya Electric America, Inc.
onnn ON Semiconductor Corp.
opencores OpenCores.org
+optee OP-TEE, Open Portable Trusted Execution Environment
option Option NV
ortustech Ortus Technology Co., Ltd.
ovti OmniVision Technologies
--
1.9.1
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