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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
dt-bindings: crypto: Convert Marvell CESA to DT schema
Convert the Marvell CESA binding to DT schema format. The
marvell-cesa.txt and mv_cesa.txt are duplicate bindings.
The clock properties are quite varied for each platform hence the
if/then schemas. The old binding was fairly accurate with reality.
The original binding didn't mention there is 1 interrupt per CESA
engine. Based on users, there's a maximum of 2 engines.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
authored by
Rob Herring (Arm)
and committed by
Herbert Xu
7d39f32c
7eff621c
+133
-76
+133
Documentation/devicetree/bindings/crypto/marvell,orion-crypto.yaml
+133
Documentation/devicetree/bindings/crypto/marvell,orion-crypto.yaml
···
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/crypto/marvell,orion-crypto.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Marvell Cryptographic Engines And Security Accelerator
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maintainers:
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- Andrew Lunn <andrew@lunn.ch>
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- Boris Brezillon <bbrezillon@kernel.org>
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description: |
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Marvell Cryptographic Engines And Security Accelerator
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properties:
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compatible:
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enum:
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- marvell,armada-370-crypto
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- marvell,armada-xp-crypto
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- marvell,armada-375-crypto
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- marvell,armada-38x-crypto
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- marvell,dove-crypto
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- marvell,kirkwood-crypto
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- marvell,orion-crypto
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+
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reg:
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minItems: 1
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items:
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- description: Registers region
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- description: SRAM region
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deprecated: true
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+
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reg-names:
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minItems: 1
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items:
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- const: regs
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- const: sram
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deprecated: true
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+
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interrupts:
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description: One interrupt for each CESA engine
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minItems: 1
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maxItems: 2
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+
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clocks:
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description: One or two clocks for each CESA engine
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minItems: 1
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maxItems: 4
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+
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clock-names:
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minItems: 1
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items:
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- const: cesa0
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- const: cesa1
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- const: cesaz0
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- const: cesaz1
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+
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marvell,crypto-srams:
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description: Phandle(s) to crypto SRAM.
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$ref: /schemas/types.yaml#/definitions/phandle-array
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minItems: 1
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maxItems: 2
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items:
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maxItems: 1
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+
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marvell,crypto-sram-size:
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description: SRAM size reserved for crypto operations.
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$ref: /schemas/types.yaml#/definitions/uint32
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default: 0x800
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+
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required:
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- compatible
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- reg
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- reg-names
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- interrupts
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- marvell,crypto-srams
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+
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allOf:
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- if:
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not:
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properties:
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compatible:
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enum:
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- marvell,kirkwood-crypto
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- marvell,orion-crypto
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then:
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required:
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- clocks
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- if:
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properties:
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compatible:
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contains:
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enum:
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- marvell,armada-370-crypto
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- marvell,armada-375-crypto
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- marvell,armada-38x-crypto
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- marvell,armada-xp-crypto
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then:
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required:
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- clock-names
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- if:
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properties:
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compatible:
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contains:
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enum:
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- marvell,armada-375-crypto
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- marvell,armada-38x-crypto
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then:
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properties:
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clocks:
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minItems: 4
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clock-names:
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minItems: 4
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else:
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properties:
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clocks:
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maxItems: 2
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clock-names:
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maxItems: 2
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additionalProperties: false
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examples:
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- |
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crypto@30000 {
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compatible = "marvell,orion-crypto";
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reg = <0x30000 0x10000>;
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reg-names = "regs";
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interrupts = <22>;
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marvell,crypto-srams = <&crypto_sram>;
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marvell,crypto-sram-size = <0x600>;
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};
-44
Documentation/devicetree/bindings/crypto/marvell-cesa.txt
-44
Documentation/devicetree/bindings/crypto/marvell-cesa.txt
···
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Marvell Cryptographic Engines And Security Accelerator
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-
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Required properties:
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- compatible: should be one of the following string
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"marvell,orion-crypto"
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-
"marvell,kirkwood-crypto"
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-
"marvell,dove-crypto"
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"marvell,armada-370-crypto"
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"marvell,armada-xp-crypto"
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"marvell,armada-375-crypto"
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"marvell,armada-38x-crypto"
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- reg: base physical address of the engine and length of memory mapped
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region. Can also contain an entry for the SRAM attached to the CESA,
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but this representation is deprecated and marvell,crypto-srams should
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be used instead
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- reg-names: "regs". Can contain an "sram" entry, but this representation
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is deprecated and marvell,crypto-srams should be used instead
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- interrupts: interrupt number
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- clocks: reference to the crypto engines clocks. This property is not
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required for orion and kirkwood platforms
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- clock-names: "cesaX" and "cesazX", X should be replaced by the crypto engine
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id.
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This property is not required for the orion and kirkwoord
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platforms.
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"cesazX" clocks are not required on armada-370 platforms
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- marvell,crypto-srams: phandle to crypto SRAM definitions
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-
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Optional properties:
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- marvell,crypto-sram-size: SRAM size reserved for crypto operations, if not
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specified the whole SRAM is used (2KB)
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-
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-
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Examples:
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crypto@90000 {
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compatible = "marvell,armada-xp-crypto";
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reg = <0x90000 0x10000>;
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reg-names = "regs";
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interrupts = <48>, <49>;
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clocks = <&gateclk 23>, <&gateclk 23>;
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clock-names = "cesa0", "cesa1";
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marvell,crypto-srams = <&crypto_sram0>, <&crypto_sram1>;
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marvell,crypto-sram-size = <0x600>;
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};
-32
Documentation/devicetree/bindings/crypto/mv_cesa.txt
-32
Documentation/devicetree/bindings/crypto/mv_cesa.txt
···
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Marvell Cryptographic Engines And Security Accelerator
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-
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Required properties:
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- compatible: should be one of the following string
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"marvell,orion-crypto"
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"marvell,kirkwood-crypto"
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-
"marvell,dove-crypto"
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- reg: base physical address of the engine and length of memory mapped
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region. Can also contain an entry for the SRAM attached to the CESA,
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but this representation is deprecated and marvell,crypto-srams should
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be used instead
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- reg-names: "regs". Can contain an "sram" entry, but this representation
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is deprecated and marvell,crypto-srams should be used instead
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- interrupts: interrupt number
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- clocks: reference to the crypto engines clocks. This property is only
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required for Dove platforms
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- marvell,crypto-srams: phandle to crypto SRAM definitions
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-
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Optional properties:
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- marvell,crypto-sram-size: SRAM size reserved for crypto operations, if not
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specified the whole SRAM is used (2KB)
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-
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Examples:
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crypto@30000 {
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compatible = "marvell,orion-crypto";
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reg = <0x30000 0x10000>;
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reg-names = "regs";
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interrupts = <22>;
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marvell,crypto-srams = <&crypto_sram>;
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marvell,crypto-sram-size = <0x600>;
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};