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authorBoris BREZILLON <boris.brezillon@free-electrons.com>2015-06-18 15:46:30 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2015-06-19 22:18:06 +0800
commit2df6bb5d8b22bc06a6ea83e8b2a6bcf3bb445304 (patch)
treedf2fcd15349a12fea7d47e381b0c6791e5c95b30 /Documentation/devicetree/bindings/crypto
parentcrypto: marvell/cesa - add support for Kirkwood and Dove SoCs (diff)
downloadlinux-dev-2df6bb5d8b22bc06a6ea83e8b2a6bcf3bb445304.tar.xz
linux-dev-2df6bb5d8b22bc06a6ea83e8b2a6bcf3bb445304.zip
crypto: marvell/cesa - add DT bindings documentation
Add DT bindings documentation for the new marvell-cesa driver. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'Documentation/devicetree/bindings/crypto')
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diff --git a/Documentation/devicetree/bindings/crypto/marvell-cesa.txt b/Documentation/devicetree/bindings/crypto/marvell-cesa.txt
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+Marvell Cryptographic Engines And Security Accelerator
+
+Required properties:
+- compatible: should be one of the following string
+ "marvell,orion-crypto"
+ "marvell,kirkwood-crypto"
+ "marvell,dove-crypto"
+ "marvell,armada-370-crypto"
+ "marvell,armada-xp-crypto"
+ "marvell,armada-375-crypto"
+ "marvell,armada-38x-crypto"
+- reg: base physical address of the engine and length of memory mapped
+ region. Can also contain an entry for the SRAM attached to the CESA,
+ but this representation is deprecated and marvell,crypto-srams should
+ be used instead
+- reg-names: "regs". Can contain an "sram" entry, but this representation
+ is deprecated and marvell,crypto-srams should be used instead
+- interrupts: interrupt number
+- clocks: reference to the crypto engines clocks. This property is not
+ required for orion and kirkwood platforms
+- clock-names: "cesaX" and "cesazX", X should be replaced by the crypto engine
+ id.
+ This property is not required for the orion and kirkwoord
+ platforms.
+ "cesazX" clocks are not required on armada-370 platforms
+- marvell,crypto-srams: phandle to crypto SRAM definitions
+
+Optional properties:
+- marvell,crypto-sram-size: SRAM size reserved for crypto operations, if not
+ specified the whole SRAM is used (2KB)
+
+
+Examples:
+
+ crypto@90000 {
+ compatible = "marvell,armada-xp-crypto";
+ reg = <0x90000 0x10000>;
+ reg-names = "regs";
+ interrupts = <48>, <49>;
+ clocks = <&gateclk 23>, <&gateclk 23>;
+ clock-names = "cesa0", "cesa1";
+ marvell,crypto-srams = <&crypto_sram0>, <&crypto_sram1>;
+ marvell,crypto-sram-size = <0x600>;
+ status = "okay";
+ };