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authorLinus Walleij <linus.walleij@linaro.org>2021-05-11 16:06:40 +0300
committerLinus Walleij <linus.walleij@linaro.org>2021-06-17 16:31:05 +0300
commitcca061b04c0de4c8a0b2cfcdf534ab0a566178c3 (patch)
tree31db18e29736b5a27fea2cc817252df8ff7570a7 /Documentation/devicetree/bindings/rng
parent854a004305c202d85e2536459187bc7ab5edef31 (diff)
downloadlinux-cca061b04c0de4c8a0b2cfcdf534ab0a566178c3.tar.xz
hw_random: ixp4xx: Add DT bindings
This adds device tree bindings for the simple random number generator found in the IXP46x SoCs. Cc: Deepak Saxena <dsaxena@plexity.net> Cc: devicetree@vger.kernel.org Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/rng')
-rw-r--r--Documentation/devicetree/bindings/rng/intel,ixp46x-rng.yaml36
1 files changed, 36 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/rng/intel,ixp46x-rng.yaml b/Documentation/devicetree/bindings/rng/intel,ixp46x-rng.yaml
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+++ b/Documentation/devicetree/bindings/rng/intel,ixp46x-rng.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rng/intel,ixp46x-rng.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Intel IXP46x RNG bindings
+
+description: |
+ The Intel IXP46x has a random number generator at a fixed physical
+ location in memory. Each read is guaranteed to provide a unique
+ 32 bit random number.
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+properties:
+ compatible:
+ const: intel,ixp46x-rng
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ rng@70002100 {
+ compatible = "intel,ixp46x-rng";
+ reg = <0x70002100 4>;
+ };
+