[PATCHi v2] dt-bindings: add device tree binding for Arm TrustZone CryptoCell crypto engine
flat view
From: Gilad Ben-Yossef <hidden>
Date: 2017-11-16 06:15:48
Also in:
linux-devicetree, lkml
Subsystem:
crypto api, open firmware and flattened device tree bindings, the rest · Maintainers:
Herbert Xu, "David S. Miller", Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
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-6S/DczAoZh3WXxRugSxzZg@public.gmane.org> Acked-by: Rob Herring <redacted> --- 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
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 >; + + };
--
2.7.4
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