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authorAntoine Ténart <antoine.tenart@free-electrons.com>2017-05-24 17:10:31 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2017-06-22 11:54:07 +0300
commit0f89b39bc60a8ea42e9e4b0f2e80659e7b22b003 (patch)
tree3efe56eae12fea68771aa57083e3b19b545b8a2f
parent52a33d99882291808681af8582358ddca5b0d0bc (diff)
downloadlinux-0f89b39bc60a8ea42e9e4b0f2e80659e7b22b003.tar.xz
Documentation/bindings: Document the SafeXel cryptographic engine driver
The Inside Secure Safexcel cryptographic engine is found on some Marvell SoCs (7k/8k). Document the bindings used by its driver. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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diff --git a/Documentation/devicetree/bindings/crypto/inside-secure-safexcel.txt b/Documentation/devicetree/bindings/crypto/inside-secure-safexcel.txt
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+Inside Secure SafeXcel cryptographic engine
+
+Required properties:
+- compatible: Should be "inside-secure,safexcel-eip197".
+- reg: Base physical address of the engine and length of memory mapped region.
+- interrupts: Interrupt numbers for the rings and engine.
+- interrupt-names: Should be "ring0", "ring1", "ring2", "ring3", "eip", "mem".
+
+Optional properties:
+- clocks: Reference to the crypto engine clock.
+- dma-mask: The address mask limitation. Defaults to 64.
+
+Example:
+
+ crypto: crypto@800000 {
+ compatible = "inside-secure,safexcel-eip197";
+ reg = <0x800000 0x200000>;
+ interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "mem", "ring0", "ring1", "ring2", "ring3",
+ "eip";
+ clocks = <&cpm_syscon0 1 26>;
+ dma-mask = <0xff 0xffffffff>;
+ status = "disabled";
+ };