On 12/05/2020 00:53, Rob Herring wrote:
On Fri, Apr 24, 2020 at 07:44:24PM +0300, Tero Kristo wrote:
From: Keerthy <j-keerthy@xxxxxx>
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 <robh@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Signed-off-by: Keerthy <j-keerthy@xxxxxx>
[t-kristo@xxxxxx: converted documentation to yaml]
Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
---
.../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 <t-kristo@xxxxxx>
+
+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?
Ooops, thats a typo right here. Will fix that.
+ type: object
+ description:
+ Child RNG node for SA2UL
Does this child node have a binding?
Yes, it is here:
Documentation/devicetree/bindings/rng/omap_rng.txt.
It is an old one so not converted to yaml yet though.
-Tero
+
+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
--
--
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