On Fri, Apr 24, 2020 at 07:44:24PM +0300, Tero Kristo wrote:
> From: Keerthy <[email protected]>
>
> The Security Accelerator Ultra Lite (SA2UL) subsystem provides hardware
> cryptographic acceleration for the following use cases:
>
> * Encryption and authentication for secure boot
> * Encryption and authentication of content in applications
> requiring DRM (digital rights management) and
> content/asset protection
>
> SA2UL provides support for number of different cryptographic algorithms
> including SHA1, SHA256, SHA512, AES, 3DES, and various combinations of
> the previous for AEAD use.
>
> Cc: Rob Herring <[email protected]>
> Cc: [email protected]
> Signed-off-by: Keerthy <[email protected]>
> [[email protected]: converted documentation to yaml]
> Signed-off-by: Tero Kristo <[email protected]>
> ---
> .../devicetree/bindings/crypto/ti,sa2ul.yaml | 76 +++++++++++++++++++
> 1 file changed, 76 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml
>
> diff --git a/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml
> b/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml
> new file mode 100644
> index 000000000000..27bb3a7e2b87
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml
> @@ -0,0 +1,76 @@
> +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/crypto/ti,sa2ul.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: K3 SoC SA2UL crypto module
> +
> +maintainers:
> + - Tero Kristo <[email protected]>
> +
> +properties:
> + compatible:
> + enum:
> + - ti,j721e-sa2ul
> + - ti,am654-sa2ul
> +
> + reg:
> + maxItems: 1
> +
> + power-domains:
> + maxItems: 1
> +
> + dmas:
> + items:
> + - description: TX DMA Channel
> + - description: RX DMA Channel #1
> + - description: RX DMA Channel #2
> +
> + dma-names:
> + items:
> + - const: tx
> + - const: rx1
> + - const: rx2
> +
> + dma-coherent: true
> +
> + "#address-cells":
> + const: 2
> +
> + "#size-cells":
> + const: 2
> +
> + ranges:
> + description:
> + Address translation for the possible RNG child node for SA2UL
> +
> +patternProperties:
> + "^rng@[a-lf0-9]+$":
a-l?
> + type: object
> + description:
> + Child RNG node for SA2UL
Does this child node have a binding?
> +
> +required:
> + - compatible
> + - reg
> + - power-domains
> + - dmas
> + - dma-names
> + - dma-coherent
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/soc/ti,sci_pm_domain.h>
> +
> + main_crypto: crypto@4e00000 {
> + compatible = "ti,j721-sa2ul";
> + reg = <0x0 0x4e00000 0x0 0x1200>;
> + power-domains = <&k3_pds 264 TI_SCI_PD_EXCLUSIVE>;
> + dmas = <&main_udmap 0xc000>, <&main_udmap 0x4000>,
> + <&main_udmap 0x4001>;
> + dma-names = "tx", "rx1", "rx2";
> + dma-coherent;
> + };
> --
> 2.17.1
>
> --
> Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
> Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
