From 17048b225b0307b7b271b2fa4f5479fa688e3694 Mon Sep 17 00:00:00 2001
From: Akhil R <akhilrajeev@nvidia.com>
Date: Wed, 3 Apr 2024 15:30:35 +0530
Subject: [PATCH] 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 <akhilrajeev@nvidia.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 .../crypto/nvidia,tegra234-se-aes.yaml        | 52 +++++++++++++++++++
 .../crypto/nvidia,tegra234-se-hash.yaml       | 52 +++++++++++++++++++
 2 files changed, 104 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-aes.yaml
 create mode 100644 Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-hash.yaml

diff --git a/Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-aes.yaml b/Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-aes.yaml
new file mode 100644
index 0000000000000..cb47ae2889b65
--- /dev/null
+++ b/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 <akhilrajeev@nvidia.com>
+
+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;
+    };
+...
diff --git a/Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-hash.yaml b/Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-hash.yaml
new file mode 100644
index 0000000000000..f57ef10645e29
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/nvidia,tegra234-se-hash.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/nvidia,tegra234-se-hash.yaml#
+$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 <akhilrajeev@nvidia.com>
+
+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;
+    };
+...