Sync with c8bfafb15944 ("dt/bindings: add bindings for optee") from Linux kernel. Introduces linaro prefix and adds bindings for ARM TrustZone based OP-TEE implementation. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>lime2-spi
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OP-TEE Device Tree Bindings |
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OP-TEE is a piece of software using hardware features to provide a Trusted |
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Execution Environment. The security can be provided with ARM TrustZone, but |
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also by virtualization or a separate chip. |
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We're using "linaro" as the first part of the compatible property for |
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the reference implementation maintained by Linaro. |
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* OP-TEE based on ARM TrustZone required properties: |
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- compatible : should contain "linaro,optee-tz" |
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- method : The method of calling the OP-TEE Trusted OS. Permitted |
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values are: |
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"smc" : SMC #0, with the register assignments specified |
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in drivers/tee/optee/optee_smc.h |
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"hvc" : HVC #0, with the register assignments specified |
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in drivers/tee/optee/optee_smc.h |
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Example: |
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firmware { |
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optee { |
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compatible = "linaro,optee-tz"; |
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method = "smc"; |
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}; |
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}; |
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