dt-bindings: add device tree binding for Arm TrustZone CryptoCell crypto engine

The Arm TrustZone CryptoCell is a hardware security engine. This patch
adds DT bindings for its Rich Execution Environment crypto engine.

A driver supporting this device is already present in the staging tree.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Gilad Ben-Yossef 2017-11-16 06:15:28 +00:00 committed by Herbert Xu
parent 87aae50af7
commit 23eb61d304

View file

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Arm TrustZone CryptoCell cryptographic engine
Required properties:
- compatible: Should be "arm,cryptocell-712-ree".
- reg: Base physical address of the engine and length of memory mapped region.
- interrupts: Interrupt number for the device.
Optional properties:
- interrupt-parent: The phandle for the interrupt controller that services
interrupts for this device.
- clocks: Reference to the crypto engine clock.
- dma-coherent: Present if dma operations are coherent.
Examples:
arm_cc712: crypto@80000000 {
compatible = "arm,cryptocell-712-ree";
interrupt-parent = <&intc>;
interrupts = < 0 30 4 >;
reg = < 0x80000000 0x10000 >;
};