diff mbox series

[PATCHi,v2] dt-bindings: add device tree binding for Arm TrustZone CryptoCell crypto engine

Message ID 1510812929-3937-1-git-send-email-gilad@benyossef.com
State Accepted
Commit 23eb61d304f9a6a6ec507ee27dd2b6c631c26c14
Headers show
Series [PATCHi,v2] dt-bindings: add device tree binding for Arm TrustZone CryptoCell crypto engine | expand

Commit Message

Gilad Ben-Yossef Nov. 16, 2017, 6:15 a.m. UTC 
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>

---

Changes from v1:
- Change node name to reflect type of device in example as pointed out by
  Rob Herring.

 .../devicetree/bindings/crypto/arm-cryptocell.txt  | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/crypto/arm-cryptocell.txt

-- 
2.7.4

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diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/crypto/arm-cryptocell.txt b/Documentation/devicetree/bindings/crypto/arm-cryptocell.txt
new file mode 100644
index 0000000..cec8d5d
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/arm-cryptocell.txt
@@ -0,0 +1,22 @@ 
+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 >;
+
+       };