From: Hadar Gat <hadar.gat@arm.com>
To: Matt Mackall <mpm@selenic.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Krzysztof Kozlowski <krzk@kernel.org>,
Daniel Thompson <daniel.thompson@linaro.org>,
Tomer Maimon <tmaimon77@gmail.com>,
Stefan Wahren <wahrenst@gmx.net>,
Sumit Garg <sumit.garg@linaro.org>, Zaibo Xu <xuzaibo@huawei.com>,
Weili Qian <qianweili@huawei.com>,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: linux-crypto@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Gilad Ben-Yossef <gilad@benyossef.com>,
Ofir Drang <ofir.drang@arm.com>, Hadar Gat <hadar.gat@arm.com>
Subject: [PATCH v2 1/3] dt-bindings: add device tree binding for Arm CryptoCell trng engine
Date: Sun, 2 Feb 2020 15:26:59 +0200 [thread overview]
Message-ID: <1580650021-8578-2-git-send-email-hadar.gat@arm.com> (raw)
In-Reply-To: <1580650021-8578-1-git-send-email-hadar.gat@arm.com>
The Arm CryptoCell is a hardware security engine. This patch adds DT
bindings for its TRNG (True Random Number Generator) engine.
Signed-off-by: Hadar Gat <hadar.gat@arm.com>
---
.../devicetree/bindings/rng/arm-cctrng.yaml | 51 ++++++++++++++++++++++
1 file changed, 51 insertions(+)
create mode 100644 Documentation/devicetree/bindings/rng/arm-cctrng.yaml
diff --git a/Documentation/devicetree/bindings/rng/arm-cctrng.yaml b/Documentation/devicetree/bindings/rng/arm-cctrng.yaml
new file mode 100644
index 0000000..fe9422e
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/arm-cctrng.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rng/arm-cctrng.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm ZrustZone CryptoCell TRNG engine
+
+maintainers:
+ - Hadar Gat <hadar.gat@arm.com>
+
+description: |+
+ Arm ZrustZone CryptoCell TRNG (True Random Number Generator) engine.
+
+properties:
+ compatible:
+ description: Should be "arm,cryptocell-7x3-trng"
+ const: arm,cryptocell-7x3-trng
+
+ interrupts:
+ description: Interrupt number for the device.
+ maxItems: 1
+
+ reg:
+ description: Base physical address of the engine and length of memory
+ mapped region.
+ maxItems: 1
+
+ rosc-ratio:
+ description: Sampling ratio values from calibration for 4 ring oscillators.
+ maxItems: 1
+
+ clocks:
+ description: Reference to the crypto engine clock.
+
+required:
+ - compatible
+ - interrupts
+ - reg
+ - rosc-ratio
+
+additionalProperties: false
+
+examples:
+ - |
+ arm_cctrng: arm_cctrng@60000000 {
+ compatible = "arm,cryptocell-7x3-trng";
+ interrupts = <0 29 4>;
+ reg = <0x60000000 0x10000>;
+ rosc-ratio = <5000 1000 500 0>;
+ };
--
2.7.4
next prev parent reply other threads:[~2020-02-02 13:27 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-02 13:26 [PATCH v2 0/3] hw_random: introduce Arm CryptoCell TRNG driver Hadar Gat
2020-02-02 13:26 ` Hadar Gat [this message]
2020-02-06 18:56 ` [PATCH v2 1/3] dt-bindings: add device tree binding for Arm CryptoCell trng engine Rob Herring
2020-02-09 9:33 ` Hadar Gat
2020-02-11 18:39 ` Rob Herring
2020-02-13 10:21 ` Hadar Gat
2020-02-02 13:27 ` [PATCH v2 2/3] hw_random: cctrng: introduce Arm CryptoCell driver Hadar Gat
2020-02-02 13:27 ` [PATCH v2 3/3] MAINTAINERS: add HG as cctrng maintainer Hadar Gat
2020-02-03 10:11 ` Andy Shevchenko
2020-02-05 9:22 ` Hadar Gat
2020-02-05 13:40 ` Andy Shevchenko
2020-02-03 9:54 ` [PATCH v2 0/3] hw_random: introduce Arm CryptoCell TRNG driver Arnd Bergmann
2020-02-05 8:56 ` Hadar Gat
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