From nobody Tue Feb 10 16:18:51 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1 dmarc=pass fromdomain=aspeedtech.com); dmarc=pass(p=quarantine dis=none) header.from=aspeedtech.com ARC-Seal: i=2; a=rsa-sha256; t=1770714903; cv=pass; d=zohomail.com; s=zohoarc; b=SS7eHBW5Ocb7pLp/ZTms5CkAqOfjSHSnzC89Z5Q8bzupW+ug2cFBH7epWwCAee3TZKy3FqCAFTsO3SpaqUusRCKe7Iezy6xD3t8WGyMIJU5LZFnt5nKr2EIhc7JzbskPF+EHuFYkZQNeo6elJv2WmPFFNkyRmMwl0afiTsDXgLk= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1770714903; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=zmVF+Hu280YwIRW2Y2PU2OYpm86SrAuPXXf0GR+tRTo=; b=QxwpF2Lb6fe8X7XcqOn+f/Y4p+XY00wtMFQfsGeMNGyhPvBM2cpIXHkgsPMfhapfikpUDPKlnunnXa54STPaR9Wbxo0ewFCeGJ0Fk4yNQtDuqI0JRKpfdrvLVN/7BDIqgDciraMjxu2y7hl0+jefoyyxcnbMt0gsJag8Wkg9HfQ= ARC-Authentication-Results: i=2; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1 dmarc=pass fromdomain=aspeedtech.com); dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1770714903364983.1643506355194; Tue, 10 Feb 2026 01:15:03 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vpjlv-0001Zx-87; Tue, 10 Feb 2026 04:11:03 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vpjls-0001QC-7V; Tue, 10 Feb 2026 04:11:00 -0500 Received: from mail-koreacentralazlp170130006.outbound.protection.outlook.com ([2a01:111:f403:c40f::6] helo=SEYPR02CU001.outbound.protection.outlook.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vpjlq-0004mZ-KZ; Tue, 10 Feb 2026 04:10:59 -0500 Received: from TYPPR06MB8206.apcprd06.prod.outlook.com (2603:1096:405:383::19) by KUZPR06MB8268.apcprd06.prod.outlook.com (2603:1096:d10:62::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9587.19; Tue, 10 Feb 2026 09:10:42 +0000 Received: from TYPPR06MB8206.apcprd06.prod.outlook.com ([fe80::e659:1ead:77cb:f6d3]) by TYPPR06MB8206.apcprd06.prod.outlook.com ([fe80::e659:1ead:77cb:f6d3%3]) with mapi id 15.20.9587.017; Tue, 10 Feb 2026 09:10:42 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=rwNpBxVYlmKVznJLDTtHG/MuArgwaT2GKDMB9hDcfeUG7zAHvvhNau6hOdrlAuBcoGRoIQe9F9Sk4ahq/cGx3/v1dMsZGJ9HYb9sSVWpSdHCoDlOqKF9ea/TZhsjMr9+RSXGYAZXH9zR/Zc63r3qzbKen/gwpxAlOpIhqjh8bKagpnQyzZl0jg4Ao63m2w0DkhqQbDaF+vKgRv0SYFqf3BEhkpWHTcNOlmod18QdLqxnSjpsMlv2OvwCY1PAJJB8bvPJsWamo7oQ27vlTeN2A2JU6amoov5e6U58aQVR2TMjatBPe+UJQorde2aYIS/+f70VlXV1HwWR//hNsThD6g== 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=zmVF+Hu280YwIRW2Y2PU2OYpm86SrAuPXXf0GR+tRTo=; b=yM1F+4VFYbgyHdJu9qQyrWTeh+f0fZUK3uL18vEMoe0nkKS00RqDQcebLsG32lY4E4itM0ona0FORkv09Mhu6n3pISb4AOYmN0Wk+olKpCkdL0/ya+JcIrx9cT+fxVKoJEBo5CMlBZgRXZweHkt2pQZ/f9FE7G6ImX+B1fM1S7Rrjl5aqn3UFaC3xN8U8VGSGTU6omUJLv9yWnHeZ8neH/plQu9k/TiKp6KfAAwbT1isornW3igKDNtU/ugDQkbfAF69Y332eWA1w+SOKLnekJpnZGw1jxIQi49jMi0AP9R8lToT69TrZwSjBq60RNmIwjaNPPr5HDYxrcVaEzkUGQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=aspeedtech.com; dmarc=pass action=none header.from=aspeedtech.com; dkim=pass header.d=aspeedtech.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aspeedtech.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=zmVF+Hu280YwIRW2Y2PU2OYpm86SrAuPXXf0GR+tRTo=; b=R5WQ0Wguj6NdmtQWHwM/B4A/K9fu6aiiY6FWAigxy+NjONIoNkheM0SFyI6MUX14yHJGIcnY3KRr+9BIgiGz7+alGA3tqj8KOPI8VZKD+CGR0qOQhJcilRECMmFtVvSkzkrSHjRBlzzL5AgD1siQIzuXzi+hL1UmZy8bKwdn7kdj8htpQIgs2trPILkdHBJUwwFMwcglsuWuyQuRh+31FZOB1odqD9tSx8jlYOA6Nx0PkGKaJvQONhJt1s8ibUCWSbLXxdyl/qmuL6o4lc/HEjlkcw7C47ebFhcNp++vZduPp6AHFpYdCvZFgcuvG6FsCA52QrucpYbXae22DO64Iw== From: Jamin Lin To: Paolo Bonzini , Peter Maydell , =?iso-8859-1?Q?C=E9dric_Le_Goater?= , Steven Lee , Troy Lee , Andrew Jeffery , Joel Stanley , =?iso-8859-1?Q?Marc-Andr=E9_Lureau?= , =?iso-8859-1?Q?Daniel_P=2E_Berrang=E9?= , =?iso-8859-1?Q?Philippe_Mathieu-Daud=E9?= , "open list:All patches CC here" , "open list:ARM TCG CPUs" CC: Jamin Lin , Troy Lee , Kane Chen , "nabihestefan@google.com" , Joe Komlodi , Titus Rwantare , Patrick Venture Subject: [PATCH v5 15/21] hw/i3c/dw-i3c: Add ctrl MMIO handling Thread-Topic: [PATCH v5 15/21] hw/i3c/dw-i3c: Add ctrl MMIO handling Thread-Index: AQHcmm0hs+8Te5qUKkKQhXc2qeUFIg== Date: Tue, 10 Feb 2026 09:10:41 +0000 Message-ID: <20260210091018.1553489-16-jamin_lin@aspeedtech.com> References: <20260210091018.1553489-1-jamin_lin@aspeedtech.com> In-Reply-To: <20260210091018.1553489-1-jamin_lin@aspeedtech.com> Accept-Language: zh-TW, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=aspeedtech.com; x-ms-publictraffictype: Email x-ms-traffictypediagnostic: TYPPR06MB8206:EE_|KUZPR06MB8268:EE_ x-ms-office365-filtering-correlation-id: be24e802-1d00-48ed-b801-08de6884444d x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; ARA:13230040|366016|7416014|376014|1800799024|38070700021|921020; x-microsoft-antispam-message-info: =?iso-8859-1?Q?Pbg6YnrYRo9ZZ3aSVfIlBSgGjQG2ZQR48MRV/DRRliSGcRGNjgZAo5Xgr/?= =?iso-8859-1?Q?wUU0HTCRk/8H0OM1JRXcP9M/FRPAmRHqulI5ktWPiL7gy/C9lts/d5XZ+2?= =?iso-8859-1?Q?UgXt5NqYDBGl323sk2POHoJJZ3EdfgLRdSIj3qAaDCRpIBgpmJiX0qZAii?= =?iso-8859-1?Q?jTkZA6P9SwXWvAkKJP49CBIfPJy+pymzuVVRCK5Qby0tCdYEfhuD0UcVPp?= =?iso-8859-1?Q?bBDepS2/oxuCxnTlkV/khDyG5ANA9EY0ekP2u7GSmIqmCpJ5EzWleda15w?= =?iso-8859-1?Q?8WlS3rzwZIS+6kdhLW8PZknpRRizyFd/vmxrM4nDYsNKSg8cLtGQkAc87U?= =?iso-8859-1?Q?8NqK4GMayH6A/POAtHkrRSnfsL2RIJQUMH26pqhT543TzQSuAQ4jY0PYeW?= =?iso-8859-1?Q?MkuYlPVSNDRv6RGHu96drjC/YPj2AEU8iBpHoavuzzJ1TjSCaWJ93ViZNl?= =?iso-8859-1?Q?0fEB0LREb3EJ7igWrqAfvKBYATTuQDwAGtDyRjiap1MKSRICZ5/DnJuVu/?= =?iso-8859-1?Q?mtxVwQElruEpJBqMjL7xDnGPE3UFcMaT8KfxgepoM3psYfLT7zOP/EOG4K?= =?iso-8859-1?Q?EI9GXlIkirigpu5i5Zm4sSe0gcbXs0ufS8KwI0hK6TQEBljCGY+25fz1zh?= =?iso-8859-1?Q?RKs/3fkLBGtLOCRLcBCI5CaT3YTP4kXYKobSWMYtRgwtC9zu2qSL+vhG9U?= =?iso-8859-1?Q?fHh1QtWDCW2cyEHSZPC/BaA+jvvWpkOsCvfctDN7qvKmcpAiB1uUILOm48?= =?iso-8859-1?Q?/9O75QsdlLU3zUuZ8SkfohmHD7/PaBxK70f5c1SN0ZALADL8G8apZiSlWY?= =?iso-8859-1?Q?/o9bhYSqPDJ1CVDZO6ieQCI4hRcxL0Fbh8/HXgnxHGEIiVThJLU/mfJB4y?= =?iso-8859-1?Q?DyXBGbIUbpitpvs8IL9btrqLSOdeiHEJnabuGWJuoutAH7uY3CE96SKubK?= =?iso-8859-1?Q?2HgsucV7u0HINS8fd6H6uFUMY/IPDGTwWHfHKGN3ZdYTVgh/g6Y/E+9WlZ?= =?iso-8859-1?Q?bAtf0OBdvEAKUufsPNNX+tuH2PM6MgZNkRMy8MHFyI/COKcvRg4/YzBUyf?= =?iso-8859-1?Q?3ici1EZd0GQJoDkYSVA9aVDJMCjTjuaERatBOomvdpPcntmMZjBb1I1gES?= =?iso-8859-1?Q?Y8FzgnrC6JoCZ1xHUofwp11+bdG6AoGgoUYmClDkGA+EqwFl9PvmYcJVrx?= =?iso-8859-1?Q?9FZgbEAJFPwbZbMhrFqa3ES1mIydlvzOHxVigQfN01qhWmMC57CSGxqB4h?= =?iso-8859-1?Q?a+HkgmxL3Id408Z+ebmlzuag3ekRM9rlqSuM3dj10ZxJfGvVZ3hzIiCV2z?= =?iso-8859-1?Q?xUSjwa0sDa33cQnayFmS5AUBKV28o/6f0ybsirzjpjcYswgQKYd58624Qh?= =?iso-8859-1?Q?mnRlHbQ1OHwKDxlE/UlfxM5YVPrLsJ12vID7UiTCtWcopP+Xd6x206GQcv?= =?iso-8859-1?Q?tbZT2Er7072SQIIduBJD6Ghn3ySu3hMtbkzP7HKFxTVGBoovvceQp2xNye?= =?iso-8859-1?Q?uQQvNP4DPkvQfPvTSFqsEi1/8C8krzZThHlaw8IfJm2GrLEqHduIAmcKOb?= =?iso-8859-1?Q?ZsfaaDENI/cu+SJOtbIwFKVGiWTuUiDnhBtTZB7uT+gBuBeRUD7+fDXOz1?= =?iso-8859-1?Q?NgWFvigV1W5zmzjEXm+wT0J5yEH0Lr7eBtos+odL3sH2q7y3WiYSmmm+Zi?= =?iso-8859-1?Q?n4a5EuT6Oq0OrNKPbELwdUgs5wVmiTEJrsHI0KRk?= x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:TYPPR06MB8206.apcprd06.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230040)(366016)(7416014)(376014)(1800799024)(38070700021)(921020); DIR:OUT; SFP:1102; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?iso-8859-1?Q?3+dIQEwTNCoPd6VaoWumc5DuostDVReypjlcin544IUdTJSYSnztDX/1iP?= =?iso-8859-1?Q?yEUvUQODpNm0xjN2WZDE1P/JCG741IFS/8gISaBcwGpH1jw3xudhVULZ7L?= =?iso-8859-1?Q?0hBgtHgkoBBh34d0LnViguEj8PB1SurUoUfs79UtXUSRsxY4YxxvaRum50?= =?iso-8859-1?Q?osHatx0EqZERwgDFdUQ+HRLzRA9feROm427Whodck+xgbsjXwWPNqDN1ba?= =?iso-8859-1?Q?dw2IQW7pW/dj7862UyOBuBUynyEP0vFdlJZyzkgn8gAImKgXK6yIeVb06k?= =?iso-8859-1?Q?/dhMhKSye2V6huB1ojacunkYovWv1CFowsSoLeo+t4H+mXDT0rEIEqQP6n?= =?iso-8859-1?Q?PlPTYFIo1Y42AiEbgGK8KZHkojWrS9g9ml/zT3ghc5EOXtNvTCNtRQJ659?= =?iso-8859-1?Q?N2rMMKl57j28dBnmoI7Dz3lDXKU9OL4GQ4ZAyi9tXf77QQllBNdY321+JL?= =?iso-8859-1?Q?rP7MRqHzYNRibbNu5N5frTjnVTFMovyJ/uKmwCcSIrr7tIFdp27CvyjyuU?= =?iso-8859-1?Q?aM7g8TurKR/Hy08dkZDrZMx6G3yLm109f2GJ59XyA7f9gHHbZC9St6sJMn?= =?iso-8859-1?Q?9Uybk2Atio66lkbYGh0dsW86jOjli/9lzC5SsfEXcfNPrASyWXTAo8JNdB?= =?iso-8859-1?Q?ngDMQ3WHbDSEPmHrGzSuO80q0i5P5YJzy2HQDKuKalua5VcL/UErbH7adV?= =?iso-8859-1?Q?9Lj+2HBfQVXTuzvq1XgDMkjL+skdHdTG51bQLthCBDOsKQCEBxAUmfKK25?= =?iso-8859-1?Q?zG3d2C8GUa/d4PNvzUJ3jSljd59lM49Kk9eP/2ii/slDzcwu8F6g92z396?= =?iso-8859-1?Q?v/ggN7uWt1XgVx0Nu18Uz/YGnMxyQYFKThWLRIwxypDZuzdBCyvZ7femnm?= =?iso-8859-1?Q?W6u58g8XcSxHGALRqybcvuGLJtcY2gdqFfcm+EFnvYLkYWn1cx0Ok1ugx4?= =?iso-8859-1?Q?CxGA9fkTE8aMfYsTlcsB0B6KwScJT4Ypcxnsiy3gerU+wX62FsKB4f+cVw?= =?iso-8859-1?Q?aCO4UODae3u5U2rJ3yuqpCkFEGksOVhNs6Bsfci4DV0+S4jht7gSshG3yS?= =?iso-8859-1?Q?k6JiYA3AbuK/0x/6Ednwdi7MtLddENdu8qMip+gchJS8tdKvN6GYf+BlNl?= =?iso-8859-1?Q?08KnXK8MZp/jHIaNMD+2/TVKnhAWoYQk7119/xqJT3Uc3Z4RE4XCxvbtkY?= =?iso-8859-1?Q?NDTpLeJJPKtqKZzTN8nVLyGwDBs7RHn11zzAFCFJ5WJNKrkLjiaJzDl90M?= =?iso-8859-1?Q?jmrsLzV5/ZPaBknjC/UVOOTg0+xxF4ePjM8/L0ObJgWdb1hYGxRHpzRvH+?= =?iso-8859-1?Q?pwyzBcsfLLqWRBO4lRar/A0LgrkANtmq2o7clQUu4pAMJKEi7bmJN9w85e?= =?iso-8859-1?Q?DoJTlUZgFuJ4/BGsO3ncak6oXSKnYmUNm9bqMZ0eHj1QMRmztSmfnzkPzA?= =?iso-8859-1?Q?/G3+HLaf7JmCjl3fH/efUOXeuC0V2PzsRn95IsJgVu3PsCTXd/fgVjz6lG?= =?iso-8859-1?Q?Np2dtyD994zMdK2ak1+uhA/HBSExC/tTm1IRkPaswWYnnBos0b9abTPKA/?= =?iso-8859-1?Q?IqTzvtsPOzXQ08uWEIYmVrK8VvmEBIVJfgpbfiKzjutCHLiwVhYn1Vs3lD?= =?iso-8859-1?Q?zE7U43MVkep8Sl8kxpcm+tLYP3zj0BSfRF9a84C/QO1QQYCLDC/J7UCVPU?= =?iso-8859-1?Q?TGsl0Rju2jp1iwVX/9a8NOanvPIo53BWfpk6o678O3AC/Tsrk2rZH4FPTn?= =?iso-8859-1?Q?yuS6UfQguqM34hp6JrgM8lT2Ryrd0Lmv9Tcfk/Q1FyiLqjpGwTspNpC+uU?= =?iso-8859-1?Q?6hSst7LWcQ=3D=3D?= Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: aspeedtech.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: TYPPR06MB8206.apcprd06.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: be24e802-1d00-48ed-b801-08de6884444d X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Feb 2026 09:10:41.3372 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 43d4aa98-e35b-4575-8939-080e90d5a249 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 8bZc7beam3w+iqEWr3jusByQdyvMi5WS3PV3p3BOFNylXhiq5ENY6azugKG8/prvwjz0Q2CGLLCLZm/Ma73jUtAidUxz0kxXR6NLdFwtwCw= X-MS-Exchange-Transport-CrossTenantHeadersStamped: KUZPR06MB8268 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a01:111:f403:c40f::6; envelope-from=jamin_lin@aspeedtech.com; helo=SEYPR02CU001.outbound.protection.outlook.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @aspeedtech.com) X-ZM-MESSAGEID: 1770714904905158500 Content-Type: text/plain; charset="utf-8" Adds functionality to the CTRL register. Signed-off-by: Joe Komlodi Reviewed-by: Titus Rwantare Reviewed-by: Patrick Venture Reviewed-by: Jamin Lin Signed-off-by: Jamin Lin --- hw/i3c/dw-i3c.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/hw/i3c/dw-i3c.c b/hw/i3c/dw-i3c.c index 832fcf326a..b6ec0d9579 100644 --- a/hw/i3c/dw-i3c.c +++ b/hw/i3c/dw-i3c.c @@ -344,6 +344,8 @@ static const uint32_t dw_i3c_ro[DW_I3C_NR_REGS] =3D { [R_SLAVE_CONFIG] =3D 0xffffffff, }; =20 +static void dw_i3c_cmd_queue_execute(DWI3C *s); + static inline bool dw_i3c_has_hdr_ts(DWI3C *s) { return ARRAY_FIELD_EX32(s->regs, HW_CAPABILITY, HDR_TS); @@ -503,6 +505,36 @@ static int dw_i3c_recv_data(DWI3C *s, bool is_i2c, uin= t8_t *data, return ret; } =20 +static void dw_i3c_ctrl_w(DWI3C *s, uint32_t val) +{ + /* + * If the user is setting I3C_RESUME, the controller was halted. + * Try and resume execution and leave the bit cleared. + */ + if (FIELD_EX32(val, DEVICE_CTRL, I3C_RESUME)) { + dw_i3c_cmd_queue_execute(s); + val =3D FIELD_DP32(val, DEVICE_CTRL, I3C_RESUME, 0); + } + /* + * I3C_ABORT being set sends an I3C STOP. It's cleared when the STOP is + * sent. + */ + if (FIELD_EX32(val, DEVICE_CTRL, I3C_ABORT)) { + dw_i3c_end_transfer(s, /*is_i2c=3D*/true); + dw_i3c_end_transfer(s, /*is_i2c=3D*/false); + val =3D FIELD_DP32(val, DEVICE_CTRL, I3C_ABORT, 0); + ARRAY_FIELD_DP32(s->regs, INTR_STATUS, TRANSFER_ABORT, 1); + dw_i3c_update_irq(s); + } + /* Update present state. */ + ARRAY_FIELD_DP32(s->regs, PRESENT_STATE, CM_TFR_ST_STATUS, + DW_I3C_TRANSFER_STATE_IDLE); + ARRAY_FIELD_DP32(s->regs, PRESENT_STATE, CM_TFR_STATUS, + DW_I3C_TRANSFER_STATUS_IDLE); + + s->regs[R_DEVICE_CTRL] =3D val; +} + static inline bool dw_i3c_target_is_i2c(DWI3C *s, uint16_t offset) { /* / sizeof(uint32_t) because we're indexing into our 32-bit reg array= . */ @@ -1575,6 +1607,9 @@ static void dw_i3c_write(void *opaque, hwaddr offset,= uint64_t value, "] =3D 0x%08" PRIx64 "\n", __func__, offset, value); break; + case R_DEVICE_CTRL: + dw_i3c_ctrl_w(s, val32); + break; case R_RX_TX_DATA_PORT: dw_i3c_push_tx(s, val32); break; --=20 2.43.0