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Mon, 30 May 2022 18:09:57 +0000 From: Vabhav Sharma To: horia.geanta@nxp.com, gaurav.jain@nxp.com, pankaj.gupta@nxp.com, herbert@gondor.apana.org.au, davem@davemloft.net, shawnguo@kernel.org, robh+dt@kernel.org Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, NXP Linux Team , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, silvano.dininno@nxp.com, V.Sethi@nxp.com Subject: [PATCH 2/3] arm: dts: imx6sx: Add entropy delay property Date: Mon, 30 May 2022 23:39:23 +0530 Message-Id: <20220530180924.1792399-3-vabhav.sharma@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220530180924.1792399-1-vabhav.sharma@nxp.com> References: <20220530180924.1792399-1-vabhav.sharma@nxp.com> X-ClientProxiedBy: SI2PR01CA0051.apcprd01.prod.exchangelabs.com (2603:1096:4:193::6) To AS1PR04MB9358.eurprd04.prod.outlook.com (2603:10a6:20b:4dc::19) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 708be761-7d7f-48c3-eb60-08da42679a75 X-MS-TrafficTypeDiagnostic: VI1PR04MB4462:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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TRNG self test are run to determine the correct entropy delay. firmware test is executed with different voltage and temperature to identify the worst case value for entropy delay. after adding a margin value(1000),entropy delay should be at least 12000. Signed-off-by: Vabhav Sharma Reviewed-by: Horia Geanta Reviewed-by: Gaurav Jain --- arch/arm/boot/dts/imx6sx.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi index fc6334336b3d..305fad35f5c4 100644 --- a/arch/arm/boot/dts/imx6sx.dtsi +++ b/arch/arm/boot/dts/imx6sx.dtsi @@ -864,6 +864,7 @@ aips2: bus@2100000 { crypto: crypto@2100000 { compatible = "fsl,sec-v4.0"; + entropy-delay = <12000>; #address-cells = <1>; #size-cells = <1>; reg = <0x2100000 0x10000>;