linux-kernel - [PATCH v2 1/2] dt-bindings: rng: add support for Airoha EN7581 TRNG

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241017124456.32584-1-ansuelsmth@gmail.com>
Date: Thu, 17 Oct 2024 14:44:37 +0200
From: Christian Marangi <ansuelsmth@...il.com>
To: Olivia Mackall <olivia@...enic.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Christian Marangi <ansuelsmth@...il.com>,
	Francesco Dolcini <francesco.dolcini@...adex.com>,
	Aurelien Jarno <aurelien@...el32.net>,
	Linus Walleij <linus.walleij@...aro.org>,
	Daniel Golle <daniel@...rotopia.org>,
	linux-crypto@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Lorenzo Bianconi <lorenzo@...nel.org>,
	upstream@...oha.com
Subject: [PATCH v2 1/2] dt-bindings: rng: add support for Airoha EN7581 TRNG

Add support for Airoha EN7581 True Random Number generator.

This module can generate up to 4bytes of raw data at times and support
self health test at startup. The module gets noise for randomness from
various source from ADC, AP, dedicated clocks and other devices attached
to the SoC producing true random numbers.

Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
---
Changes v2:
- Add Reviewed-by tag

 .../bindings/rng/airoha,en7581-trng.yaml      | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rng/airoha,en7581-trng.yaml

diff --git a/Documentation/devicetree/bindings/rng/airoha,en7581-trng.yaml b/Documentation/devicetree/bindings/rng/airoha,en7581-trng.yaml
new file mode 100644
index 000000000000..dfc6d24ee7d9
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/airoha,en7581-trng.yaml
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rng/airoha,en7581-trng.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Airoha EN7851 True Random Number Generator
+
+maintainers:
+  - Christian Marangi <ansuelsmth@...il.com>
+
+properties:
+  compatible:
+    const: airoha,en7581-trng
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    rng@...a1000 {
+        compatible = "airoha,en7581-trng";
+        reg = <0x1faa1000 0x1000>;
+        interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+    };
-- 
2.45.2