From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from BYAPR05CU005.outbound.protection.outlook.com (mail-westusazon11010068.outbound.protection.outlook.com [52.101.85.68]) (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 A1055480965; Wed, 6 May 2026 14:08:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.85.68 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778076541; cv=fail; b=q9RIQxIheBNLJ08d8tEDyEZwQG9qYdP4rA27k0ZJJBd/KZ/FggD/mZi+M0fSiVtKfkS9ZMmXgMNhc7pl2ueoxVDyLrYmAMtpqu8lAMT6h+szstL7EZuWY39r76aDZK/D9lj6nCupQQpIMOgZxdVhf2k4/tASkSQBTCS8kj8333g= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778076541; c=relaxed/simple; bh=tDYkJsS7Abx1vX/zzAVN1HmoMqDRVFpwDU9kvRZTsj8=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=nJeWcADuy3/lnvmzOa4jLkEPlHEAGqH1cyiuczqR9hWEBe8u4sKGOiuXbEccgPPkdT98HpQJI9+uyPZj3ZFaUBMO54byh3x3dUqPrs/Sccz/yRziW+WXgrE0y4hnhbmhRPxSx4KbvlEZEYrZ+Bl0xicpEEM6AigHLYDNUF4jv0c= 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=hn1LNGVy; arc=fail smtp.client-ip=52.101.85.68 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="hn1LNGVy" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=Vc79Li9n5BYiVifzTb5CENkIIGJD8Y+uiGWRaifBWSwTVU0xQtzKiJvKU2oD5E0+TgK018jjFfKGOI4wh8RPG9K8wCD+yWZOMWw67cP7p3QYdVb5nr1OYUqanR8QnY8q9kbB/oYBTl+77OPnyG3+OgvweQ/9MdvrhgsI5NC2o5dFehQ2OV6jTixrv1OwLPk7pPHLHM5zGOvu6ViLGXk1gQOVRjb/7BM8rSD2g+cDdEvk8l0lGkFQKQoI2g0Fa18lZrm+gfPITopIw1Rj9SXxboSp3t0R2XD6GdgmGHMNqBynQRZhpIdLBIR+uV3ORDIlotq1WQJg/0cAfyaPD/+nSg== 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=sABG+lKtAHUTO5Cqxkxq6R2TEVtprUt9atrmsVTwQpY=; b=BeRdrewuuwzWb24EC+q97Q67CfuGXEKZoTi42Vd6a5Si9pzt+anZtCzEfCIUBQ8D+Sa5xGx9xsVsjP1n9Nq0s0dM+3jCS2w4O5cIUzAMUbiL3qyfEpCUNtZphPlyRjaYoL8gg2aUTbg79wcb8b9OVA+ALvebvz/0tWoja6h+FYS9QeYvqlWiuCqGZCcJ8r53QQ5WBsM9LuAY2ulEI3aQqJZny8ctsc8U1WYrgwPjHmXVIEbl0qeVhAMQloaqWc7/YeBMVh8B/SsrmCY5rww12txpOurZ3l98TGpwGMXO2CtDFoAUB3nPkNYUyeeLOFVvR/YRmeNh3UeZwzLcBA1W9A== 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=sABG+lKtAHUTO5Cqxkxq6R2TEVtprUt9atrmsVTwQpY=; b=hn1LNGVyArmtE71dwRlJRY74xS6sXSp8XoukKpBOKlrnj4W4eXvhV/HIiCVxf8UMPv1l1iD+RMD2pzrqEjfd/RH7lmFfUcLQmr7kAVCEXjnt4YeK9y2JuBIvOgNJUAulc3GBEQQyxgi7xPaGnxOtKkomx0BBQ1vPcw04L8VBueI= Received: from MN2PR15CA0033.namprd15.prod.outlook.com (2603:10b6:208:1b4::46) by DS0PR10MB8127.namprd10.prod.outlook.com (2603:10b6:8:203::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9891.15; Wed, 6 May 2026 14:08:54 +0000 Received: from BL6PEPF00020E5F.namprd04.prod.outlook.com (2603:10b6:208:1b4:cafe::94) by MN2PR15CA0033.outlook.office365.com (2603:10b6:208:1b4::46) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.9891.16 via Frontend Transport; Wed, 6 May 2026 14:08:54 +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 BL6PEPF00020E5F.mail.protection.outlook.com (10.167.249.20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9891.9 via Frontend Transport; Wed, 6 May 2026 14:08:54 +0000 Received: from DLEE215.ent.ti.com (157.170.170.118) 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 15.2.2562.37; Wed, 6 May 2026 09:08:52 -0500 Received: from DLEE206.ent.ti.com (157.170.170.90) by DLEE215.ent.ti.com (157.170.170.118) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.37; Wed, 6 May 2026 09:08:52 -0500 Received: from lelvem-mr06.itg.ti.com (10.180.75.8) by DLEE206.ent.ti.com (157.170.170.90) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.37 via Frontend Transport; Wed, 6 May 2026 09:08:52 -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 646E8IWp1221395; Wed, 6 May 2026 09:08:45 -0500 From: Siddharth Vadapalli To: , , , , , , , , , , , , , , , , , , CC: , , , , , , Subject: [PATCH v2 04/13] arm64: dts: ti: k3-am642-tqma64xxl: fix USB clocking for compliance Date: Wed, 6 May 2026 19:39:36 +0530 Message-ID: <20260506141040.1368918-5-s-vadapalli@ti.com> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20260506141040.1368918-1-s-vadapalli@ti.com> References: <20260506141040.1368918-1-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: BL6PEPF00020E5F:EE_|DS0PR10MB8127:EE_ X-MS-Office365-Filtering-Correlation-Id: c1b5cfaf-aa41-4234-48c5-08deab7901fe X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|7416014|82310400026|36860700016|18002099003|22082099003|56012099003|921020; X-Microsoft-Antispam-Message-Info: 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 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)(1800799024)(376014)(7416014)(82310400026)(36860700016)(18002099003)(22082099003)(56012099003)(921020);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: Rcvk3uNYPIblNrIQm4qKtvB1hG2P4+tu19z4LLVlFViPx51SoqueS5eCvJ+34rSmqDsOMp1dhmVtlWzPPXt26O6cdpKEXZz/bF3nX9MrUaqOOPMvH8KFhj/gQf94FISIKCSA176UbWFEbUpboWmumQttdnpN0TKPPZVjSUR/1wlw0i4JO/jG1PcCTqUtnw39SYNxcgotxP2CviCePMkpd+aMlN0QM+u3nU8zp3IZNgNUr4U+OVFK+S3hhv4n4+ygwoLnyi/cKIjjUifKsH0JL2i5WiWV3JOI91EIqANGlUsdtqBq8LFlh4/LsLIpL3fDdbCGAD/lk/Jife44bCbo1Q+q9kGEMfjnss3qtnp8Z6BEWoSh6GENlONHWriSJ4pjd9/U8scZSoiQMzWqoyHq+V1/C2v3HNjD64V3BiGylNpygAYbyKL2DJxxfYpr9DXx X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 May 2026 14:08:54.4845 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c1b5cfaf-aa41-4234-48c5-08deab7901fe 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: BL6PEPF00020E5F.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR10MB8127 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: 4717a36f31ec ("arm64: dts: ti: Add TQ-Systems TQMa64XxL SoM and MBaX4XxL carrier board Device Trees") Cc: Signed-off-by: Siddharth Vadapalli --- v1: https://lore.kernel.org/r/20260505110631.1144200-5-s-vadapalli@ti.com/ No changes since v1. arch/arm64/boot/dts/ti/k3-am642-tqma64xxl-mbax4xxl.dts | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl-mbax4xxl.dts b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl-mbax4xxl.dts index 46be6824dd16..e5d1b2ebf2c8 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl-mbax4xxl.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl-mbax4xxl.dts @@ -504,6 +504,14 @@ &serdes_refclk { bootph-all; }; +&serdes_wiz0 { + 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 */ +}; + &serdes0 { serdes0_usb_link: phy@0 { reg = <0>; @@ -512,6 +520,7 @@ serdes0_usb_link: phy@0 { bootph-all; cdns,num-lanes = <1>; cdns,phy-type = ; + cdns,ssc-mode = <2>; /* 2 for internal SSC */ }; }; -- 2.51.1