dt-bindings: crypto: Add Tegra Security Engine

Add DT binding document for Tegra Security Engine.
The AES and HASH algorithms are handled independently by separate
engines within the Security Engine. These engines are registered
as two separate crypto engine drivers.

Signed-off-by: Akhil R <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

Author: Akhil R

Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-aes.yaml

@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/nvidia,tegra234-se-aes.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Security Engine for AES algorithms
+
+description:
+  The Tegra Security Engine accelerates the following AES encryption/decryption
+  algorithms - AES-ECB, AES-CBC, AES-OFB, AES-XTS, AES-CTR, AES-GCM, AES-CCM,
+  AES-CMAC
+
+maintainers:
+  - Akhil R <[email protected]>
+
+properties:
+  compatible:
+    const: nvidia,tegra234-se-aes
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  iommus:
+    maxItems: 1
+
+  dma-coherent: true
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - iommus
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/memory/tegra234-mc.h>
+    #include <dt-bindings/clock/tegra234-clock.h>
+
+    crypto@15820000 {
+        compatible = "nvidia,tegra234-se-aes";
+        reg = <0x15820000 0x10000>;
+        clocks = <&bpmp TEGRA234_CLK_SE>;
+        iommus = <&smmu TEGRA234_SID_SES_SE1>;
+        dma-coherent;
+    };
+...

Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-hash.yaml

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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/nvidia,tegra234-se-hash.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Security Engine for HASH algorithms
+
+description:
+  The Tegra Security HASH Engine accelerates the following HASH functions -
+  SHA1, SHA224, SHA256, SHA384, SHA512, SHA3-224, SHA3-256, SHA3-384, SHA3-512
+  HMAC(SHA224), HMAC(SHA256), HMAC(SHA384), HMAC(SHA512)
+
+maintainers:
+  - Akhil R <[email protected]>
+
+properties:
+  compatible:
+    const: nvidia,tegra234-se-hash
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  iommus:
+    maxItems: 1
+
+  dma-coherent: true
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - iommus
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/memory/tegra234-mc.h>
+    #include <dt-bindings/clock/tegra234-clock.h>
+
+    crypto@15840000 {
+        compatible = "nvidia,tegra234-se-hash";
+        reg = <0x15840000 0x10000>;
+        clocks = <&bpmp TEGRA234_CLK_SE>;
+        iommus = <&smmu TEGRA234_SID_SES_SE2>;
+        dma-coherent;
+    };
+...