From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from SN4PR2101CU001.outbound.protection.outlook.com (mail-southcentralusazon11012069.outbound.protection.outlook.com [40.93.195.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0527C3845B3; Tue, 5 May 2026 11:05:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.93.195.69 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777979149; cv=fail; b=ncyA6d3lLsmf+ldmeCi2azSp8np2g0mhOQUdwrz3YoP2bs41+ZrOdLMsfW51xp/3Y263P2S4SzdsOtTd+0MLf4uURTfgBMJgLctS2wUzUkAlzIsCg5471EIQyoQfAJcHQ0HHNpmBvgDeD2f6BUBgKFyZCQVCuYiNowBlU83GWvA= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777979149; c=relaxed/simple; bh=YGSAlENsAq0lG137GHQ5Qgw1dgH+9ZVSfD+HXFxjVCo=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Wde5d6UquoySVTjR3bQB9AFs9BjF/IzksXTQ8Qyb0DwWK45iXoyZRO5cnpO8qATr1MiF4migkWz2GuUao42DyobiakEL0tVqU72pfI4oEGpiXLt/HAaTqI6HkbsSdoui5F4fxoHQl7pVemLLrubfxrvTeo/rcuKQA5dZhWcc3zU= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=rhiTP2J8; arc=fail smtp.client-ip=40.93.195.69 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="rhiTP2J8" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=Ip4yIHmxfBraYGmntC+QwffLBb6C0J27FoIKwk4zUsWlb6MtsBrsYT/lAvvTr+LNaxiGsg9eASDCHnSt2c42J1QsJ0e/Vy/E5CEyW9zQlDarekng6AaMDtR+yHlsNYIyJsSK6r+JKYfL6dA4YRNuygTh2BWeJH6Y0a0ps8zR4FzqZE862+2803VMvLXKMj/mIsJycALjsJRtjcs30FmgSSlL137riVTtPiAYq2mPtMMHPOSxNy538++87RnSV6zTEbB35BYaRgDus+4PscuXIy8HJ94a2W1v7ijkCydNYbefCQY+N3Mlb6xDRF3eFCPis0jQqZP9ch0Yg/sXJULyfg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=N79X5KRz+NKEQoVayD4aItAcw+8tPQJfWhnX52y0C8g=; b=NabeEllsar9dSgqcNkwfwCBtx+/poHzMrp0j7SuC330SovBV1vzYvDACla599IFdWYFbjEBG4p2iGkwhw06AZYxe8dpl/S0t0uW3D+v6xnYGMA0oMEVewVuLX9MfK7QyxHLNs69nHHZWrRQGwb34dpq1tB3JXXLLyS17wymRtjXC3efihxF5YEALeSFMV8ws5MC8pOnKPlyJZ8e1gSqWB9mZ6QUQT6IHRTCPmnNi+n5fBnO2Gv/0jawWXDRuMFJPN0YibniGMGruKY2ErFF79thkyrXVh9Ur2+LoeGxV6d9GqPv5o9pajHBItKYa5+mZZybhoG4YRmlIG9Cmea5ECg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 198.47.23.195) smtp.rcpttodomain=lists.infradead.org smtp.mailfrom=ti.com; dmarc=pass (p=quarantine sp=none pct=100) action=none header.from=ti.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=N79X5KRz+NKEQoVayD4aItAcw+8tPQJfWhnX52y0C8g=; b=rhiTP2J8gg8kvqaq7S0Lju7i+VVpIpH8iyh9Vi8wjaVL13sxtzqR5citOiCPojSaluF81PhYaKOlVmrpfY9fyr/vhR0V+W8ShqXKtqXu/6bQk6xDO9I6TLdGqqe83fPleIXE+xZddjtTN5N3Eq06FjPodeQuzNc+yqZ2Mt/TavQ= Received: from DS0PR17CA0004.namprd17.prod.outlook.com (2603:10b6:8:191::12) by SA2PR10MB4603.namprd10.prod.outlook.com (2603:10b6:806:119::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9870.25; Tue, 5 May 2026 11:05:46 +0000 Received: from DS3PEPF000099DF.namprd04.prod.outlook.com (2603:10b6:8:191:cafe::9e) by DS0PR17CA0004.outlook.office365.com (2603:10b6:8:191::12) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.9891.15 via Frontend Transport; Tue, 5 May 2026 11:05:45 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 198.47.23.195) smtp.mailfrom=ti.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=ti.com; Received-SPF: Pass (protection.outlook.com: domain of ti.com designates 198.47.23.195 as permitted sender) receiver=protection.outlook.com; client-ip=198.47.23.195; helo=lewvzet201.ext.ti.com; pr=C Received: from lewvzet201.ext.ti.com (198.47.23.195) by DS3PEPF000099DF.mail.protection.outlook.com (10.167.17.202) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9891.9 via Frontend Transport; Tue, 5 May 2026 11:05:45 +0000 Received: from DLEE205.ent.ti.com (157.170.170.85) by lewvzet201.ext.ti.com (10.4.14.104) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Tue, 5 May 2026 06:05:45 -0500 Received: from DLEE205.ent.ti.com (157.170.170.85) by DLEE205.ent.ti.com (157.170.170.85) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Tue, 5 May 2026 06:05:45 -0500 Received: from lelvem-mr06.itg.ti.com (10.180.75.8) by DLEE205.ent.ti.com (157.170.170.85) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20 via Frontend Transport; Tue, 5 May 2026 06:05:45 -0500 Received: from toolbox.dhcp.ti.com (uda0492258.dhcp.ti.com [10.24.73.74]) by lelvem-mr06.itg.ti.com (8.18.1/8.18.1) with ESMTP id 645B49hC2831834; Tue, 5 May 2026 06:05:38 -0500 From: Siddharth Vadapalli To: , , , , , , , , , , , , , , , , , , CC: , , , , , , Subject: [PATCH 13/13] arm64: dts: ti: k3-j784s4-j742s2-evm-common: fix USB clocking for compliance Date: Tue, 5 May 2026 16:36:14 +0530 Message-ID: <20260505110631.1144200-14-s-vadapalli@ti.com> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20260505110631.1144200-1-s-vadapalli@ti.com> References: <20260505110631.1144200-1-s-vadapalli@ti.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS3PEPF000099DF:EE_|SA2PR10MB4603:EE_ X-MS-Office365-Filtering-Correlation-Id: 514fb063-f0ff-49b2-cf03-08deaa9641bb X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|1800799024|36860700016|7416014|376014|921020|18002099003|56012099003|22082099003; X-Microsoft-Antispam-Message-Info: 1nalBken1Nw7LjgBa0KKbR4nfBXkg5u9InaBwx+kU33ApC2ZLXdOPnxG51yhvBiQcyKiKeBU+g1pwMqfy/oF9U+ivaG8ahBKChPAkWj6DHm+qPi8vbmFpoqdDkgzJ5qrUxtOPGgAiHCNZl8ADXWZYjUO5E3BRpjfn7F2jwU+D+8NVGYJ/A+UXVwwXOx0tvnHOqUI6kFHFBX4SXgYWxYMmg8KeG7kr5ylX8dFXHJoj7g1+c/8NIEQ6q4p3WA1Y2gV8bO4AVLGTBXmWx1Q3+BkPQ4aTmsI7oA0h+P2fTlhrNfBsNeM1jR8PYVnEPucWhzigAhnk8tMOYN71M/GD1vXmCm3XVqsqqwwq7FRGlQ69bkCfJb6Ddq0hwYuUH9aML7dGX3vbUx6QmT8nWRf0kJ+zNkIyD2/Z/YPrvO63DQODQssNDbcMO5+zTxkmZaro6hAA7LPrQckG/PfXNLkVttp/pgbZFa0EFrjWhYOdMtp8/ylsViLBs3kXBHka0RYo8o8lf6QLL+o71Fy8EVSt4uHhJVrWV32G0nSoe7g2wNojovo1XGMLTGlE10sHkc4zpaHvCty0j7kRCDYy8wNjQuYphr5wOBUyxl0/hK5KwZIxR9vONAgJ3hTS/bzOmyeo76xaGPdKmHCiRO1sjIRmOmDW+zX5tWJfhvPmtSlFa2nbMWK4eaUU1+o1xBslg9WvtrDzNe8yeuFuSa4hSUykaRzkABjdInI4MI3Y5e0Sz5LFLcx+TTZIA+cGFK/8UXKv6ellWi+W/3e2iAo2oJjBDAXdw== X-Forefront-Antispam-Report: CIP:198.47.23.195;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:lewvzet201.ext.ti.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(82310400026)(1800799024)(36860700016)(7416014)(376014)(921020)(18002099003)(56012099003)(22082099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: ylNwQ96SMneSgH1f5wtqJk1gQt36ksmqCBd4C+wPPVO39BSyJhU8mF1ujwnln6feOYmye9VaehoRE+VjomCRyGcDbkYXRvhnzJry5lWFgeO21PAb6FsCCW+qZUIQk4JUhjXJ9oLm6T0X9fexp4KGz7QZD2lOPCCtxV/jRJzjXYWDD9EMdDsaFCnbmVTt3OYbGLUiJidNSvEYNLofcZFnSQiNIgtsFlf0m+LgOCKdeD/9Aj/QyM0G7aktYO6DcIO76Qi1U1kokND32T1G0qekus0uqXrbv4RuclDSA6VCB4XPbKxvPwP+cHxURpLQ0GSChdiG5bP/VBC0k0ZE2jfA96Nd6HZWVi/J/LmqK4f8K+vWe0A80u2LBqZ/aB5jU0Fv5uJd0kKFNMZEqvpGrbGSREBynt/V0DGHroKbtQqcX2dlOxvgj/TgE2mCLCUK14WU X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 May 2026 11:05:45.6829 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 514fb063-f0ff-49b2-cf03-08deaa9641bb X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.23.195];Helo=[lewvzet201.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: DS3PEPF000099DF.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA2PR10MB4603 According to section "6.5.3 Normative Spread Spectrum Clocking (SSC)" of the USB 3.2 Specification, SSC should be enabled by default. This protects against EMI violations. Hence, enable internal SSC for USB SuperSpeed. Fixes: 39b623c05c46 ("arm64: dts: ti: Refactor J784s4-evm to a common file") Fixes: bed97e94ee2d ("arm64: dts: ti: k3-j784s4-evm: Enable USB3 support") Cc: Signed-off-by: Siddharth Vadapalli --- arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi index ff3a85cbc524..0884773ad230 100644 --- a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi @@ -1010,12 +1010,18 @@ serdes0_usb_link: phy@3 { cdns,num-lanes = <1>; #phy-cells = <0>; cdns,phy-type = ; + cdns,ssc-mode = <2>; /* 2 for internal SSC */ resets = <&serdes_wiz0 4>; }; }; &serdes_wiz0 { status = "okay"; + ti,core-clk-sel = <1>; /* Select internal reference clock */ + ti,ssc-enable; /* Enable SSC */ + ti,ssc-type = <1>; /* 1 for Downspread */ + ti,ssc-frequency-hz = <33000>; /* 33 KHz */ + ti,ssc-depth-per-mil = <5>; /* 0.5% depth */ }; &usb_serdes_mux { -- 2.51.1