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author | Gilad Ben-Yossef <gilad@benyossef.com> | 2017-11-16 06:15:28 +0000 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-11-29 17:33:27 +1100 |
commit | 23eb61d304f9a6a6ec507ee27dd2b6c631c26c14 (patch) | |
tree | 66d35c1c5ee4325a8f7770391c60cf5a123adf2c /Documentation/devicetree/bindings/crypto | |
parent | 87aae50af730a28dc1d8846d86dca5e9aa724a9f (diff) | |
download | linux-23eb61d304f9a6a6ec507ee27dd2b6c631c26c14.tar.bz2 |
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>
Diffstat (limited to 'Documentation/devicetree/bindings/crypto')
-rw-r--r-- | Documentation/devicetree/bindings/crypto/arm-cryptocell.txt | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/crypto/arm-cryptocell.txt b/Documentation/devicetree/bindings/crypto/arm-cryptocell.txt new file mode 100644 index 000000000000..cec8d5d74e26 --- /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 >; + + }; |