Received-SPF: pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Tero Kristo <t-kristo@ti.com>
To:     <herbert@gondor.apana.org.au>, <davem@davemloft.net>,
        <linux-crypto@vger.kernel.org>
CC:     Keerthy <j-keerthy@ti.com>, Rob Herring <robh@kernel.org>,
        <devicetree@vger.kernel.org>
Subject: [PATCHv2 1/7] dt-bindings: crypto: Add TI SA2UL crypto accelerator documentation
Date:   Fri, 24 Apr 2020 19:44:24 +0300
Message-ID: <20200424164430.3288-2-t-kristo@ti.com>
In-Reply-To: <20200424164430.3288-1-t-kristo@ti.com>
References: <20200424164430.3288-1-t-kristo@ti.com>
MIME-Version: 1.0
Content-Type: text/plain
Sender: linux-crypto-owner@vger.kernel.org
Precedence: bulk

From: Keerthy <j-keerthy@ti.com>

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@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Keerthy <j-keerthy@ti.com>
[t-kristo@ti.com: converted documentation to yaml]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 .../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@ti.com>
+
+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]+$":
+    type: object
+    description:
+      Child RNG node for SA2UL
+
+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