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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add bindings for ARM TrustZone based Security Random Number Generator. Signed-off-by: Neal Liu --- Documentation/devicetree/bindings/rng/sec-rng.yaml | 53 ++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/rng/sec-rng.yaml diff --git a/Documentation/devicetree/bindings/rng/sec-rng.yaml b/Documentation/devicetree/bindings/rng/sec-rng.yaml new file mode 100644 index 0000000..7f4ae50 --- /dev/null +++ b/Documentation/devicetree/bindings/rng/sec-rng.yaml @@ -0,0 +1,53 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# # Copyright 2020 MediaTek Inc. +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/rng/sec-rng.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Security Random Number Generator + +description: | + sec-rng is a security random number generator which provides a generic + interface to get hardware rnd from Secure state. The Secure state can be + Arm Trusted Firmware(ATF), Trusted Execution Environment(TEE), or even + EL2 hypervisor. + +maintainer: + - Neal Liu + +properties: + compatible: + enum: + - arm,sec-rng + + method: + description: The method of calling to Secure state + enum: + - smc + - hvc + + method-fid: + description: The function number within the SMC and HVC function identifier + maxItems: 1 + + quality: + description: Estimation of true entropy in RNG's bitstream per 1024 bits + maxItems: 1 + +required: + - compatible + - methods + - method-fid + - quality + +additionalProperties: false + +examples: + - | + hwrng: hwrng { + compatible = "arm,sec-rng"; + method = "smc"; + method-fid = /bits/ 16 <0x26a>; + quality = /bits/ 16 <900>; + }; -- 1.7.9.5 _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CD7FDC433E2 for ; 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Tue, 2 Jun 2020 16:14:59 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 2 Jun 2020 16:14:58 +0800 From: Neal Liu To: Matt Mackall , Herbert Xu , Rob Herring , Matthias Brugger , Sean Wang , Arnd Bergmann , "Greg Kroah-Hartman" Subject: [PATCH v6 1/2] dt-bindings: rng: add bindings for sec-rng Date: Tue, 2 Jun 2020 16:14:37 +0800 Message-ID: <1591085678-22764-2-git-send-email-neal.liu@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1591085678-22764-1-git-send-email-neal.liu@mediatek.com> References: <1591085678-22764-1-git-send-email-neal.liu@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200602_011508_845320_5C93CD05 X-CRM114-Status: GOOD ( 10.70 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, wsd_upstream@mediatek.com, lkml , Crystal Guo , linux-mediatek@lists.infradead.org, linux-crypto@vger.kernel.org, Neal Liu , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add bindings for ARM TrustZone based Security Random Number Generator. Signed-off-by: Neal Liu --- Documentation/devicetree/bindings/rng/sec-rng.yaml | 53 ++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/rng/sec-rng.yaml diff --git a/Documentation/devicetree/bindings/rng/sec-rng.yaml b/Documentation/devicetree/bindings/rng/sec-rng.yaml new file mode 100644 index 0000000..7f4ae50 --- /dev/null +++ b/Documentation/devicetree/bindings/rng/sec-rng.yaml @@ -0,0 +1,53 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# # Copyright 2020 MediaTek Inc. +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/rng/sec-rng.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Security Random Number Generator + +description: | + sec-rng is a security random number generator which provides a generic + interface to get hardware rnd from Secure state. The Secure state can be + Arm Trusted Firmware(ATF), Trusted Execution Environment(TEE), or even + EL2 hypervisor. + +maintainer: + - Neal Liu + +properties: + compatible: + enum: + - arm,sec-rng + + method: + description: The method of calling to Secure state + enum: + - smc + - hvc + + method-fid: + description: The function number within the SMC and HVC function identifier + maxItems: 1 + + quality: + description: Estimation of true entropy in RNG's bitstream per 1024 bits + maxItems: 1 + +required: + - compatible + - methods + - method-fid + - quality + +additionalProperties: false + +examples: + - | + hwrng: hwrng { + compatible = "arm,sec-rng"; + method = "smc"; + method-fid = /bits/ 16 <0x26a>; + quality = /bits/ 16 <900>; + }; -- 1.7.9.5 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel