On Mon, May 10, 2021 at 11:36:33PM +0200, Linus Walleij wrote: > This adds device tree bindings for the ixp4xx crypto engine. > > Cc: devicetree@xxxxxxxxxxxxxxx > Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx> > --- > Herbert, David: This can be applied separately once we are > happy with the bindings, alternatively it can be merged > with the support code into ARM SoC. > --- > .../bindings/crypto/intel,ixp4xx-crypto.yaml | 59 +++++++++++++++++++ > 1 file changed, 59 insertions(+) > create mode 100644 Documentation/devicetree/bindings/crypto/intel,ixp4xx-crypto.yaml > > diff --git a/Documentation/devicetree/bindings/crypto/intel,ixp4xx-crypto.yaml b/Documentation/devicetree/bindings/crypto/intel,ixp4xx-crypto.yaml > new file mode 100644 > index 000000000000..28d75f4f9a76 > --- /dev/null > +++ b/Documentation/devicetree/bindings/crypto/intel,ixp4xx-crypto.yaml > @@ -0,0 +1,59 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +# Copyright 2018 Linaro Ltd. > +%YAML 1.2 > +--- > +$id: "http://devicetree.org/schemas/crypto/intel,ixp4xx-crypto.yaml#"; > +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; > + > +title: Intel IXP4xx cryptographic engine > + > +maintainers: > + - Linus Walleij <linus.walleij@xxxxxxxxxx> > + > +description: | > + The Intel IXP4xx cryptographic engine makes use of the IXP4xx NPE > + (Network Processing Engine). Since it is not a device on its own > + it is defined as a subnode of the NPE, if crypto support is > + available on the platform. > + > +properties: > + compatible: > + const: intel,ixp4xx-crypto > + > + intel,npe-handle: > + $ref: '/schemas/types.yaml#/definitions/phandle-array' > + maxItems: 1 > + description: phandle to the NPE this ethernet instance is using > + and the instance to use in the second cell > + > + queue-rx: > + $ref: '/schemas/types.yaml#/definitions/phandle-array' > + maxItems: 1 > + description: phandle to the RX queue on the NPE > + > + queue-txready: > + $ref: '/schemas/types.yaml#/definitions/phandle-array' > + maxItems: 1 > + description: phandle to the TX READY queue on the NPE > + > +required: > + - compatible > + - intel,npe-handle > + - queue-rx > + - queue-txready > + > +additionalProperties: false > + > +examples: > + - | > + npe: npe@c8006000 { > + compatible = "intel,ixp4xx-network-processing-engine"; > + reg = <0xc8006000 0x1000>, <0xc8007000 0x1000>, <0xc8008000 0x1000>; > + > + crypto { The parent schema needs to define 'crypto' and have a ref to this schema. I'd put the example there rather than piecemeal. > + compatible = "intel,ixp4xx-crypto"; > + intel,npe-handle = <&npe 2>; A bit redundant to have a phandle to the parent. > + queue-rx = <&qmgr 30>; > + queue-txready = <&qmgr 29>; > + }; > + }; > -- > 2.30.2 >
