1OP-TEE Device Tree Bindings
2
3OP-TEE is a piece of software using hardware features to provide a Trusted
4Execution Environment. The security can be provided with ARM TrustZone, but
5also by virtualization or a separate chip.
6
7We're using "linaro" as the first part of the compatible property for
8the reference implementation maintained by Linaro.
9
10* OP-TEE based on ARM TrustZone required properties:
11
12- compatible     : should contain "linaro,optee-tz"
13
14- method         : The method of calling the OP-TEE Trusted OS. Permitted
15                   values are:
16
17                   "smc" : SMC #0, with the register assignments specified
18		           in drivers/tee/optee/optee_smc.h
19
20                   "hvc" : HVC #0, with the register assignments specified
21		           in drivers/tee/optee/optee_smc.h
22
23
24
25Example:
26	firmware {
27		optee {
28			compatible = "linaro,optee-tz";
29			method = "smc";
30		};
31	};
32