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Petersen" , Sai Krishna Potthuri , Ajay Neeli , Manivannan Sadhasivam , Pedro Sousa , clizzi@redhat.com, aruizrui@redhat.com, eballetb@redhat.com, echanude@redhat.com Cc: linux-scsi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org Subject: [PATCH 00/10] Add S32N79RDB UFS support Date: Wed, 26 Aug 2026 15:40:38 +0200 Message-ID: <20260826134048.854748-1-larisa.grigore@oss.nxp.com> X-Mailer: git-send-email 2.43.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-ClientProxiedBy: FR4P281CA0385.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:f7::10) To GV2PR04MB12558.eurprd04.prod.outlook.com (2603:10a6:150:368::10) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: GV2PR04MB12558:EE_|GV2PR04MB11862:EE_ X-MS-Office365-Filtering-Correlation-Id: eee604ee-ce35-4c32-1dec-08df0377a5cf X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-LD-Processed: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|23010399003|7416014|19092799006|376014|366016|921020|6133799003|10067099003|56012099006|3023799007|11063799006|18002099003; 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The controller is based on the Synopsys DesignWare (DWC) UFS host architecture and requires S32N79-specific M-PHY initialization/calibration sequence. It is compliant with JESD-223D "Universal Flash Storage Host Controller Interface" v3.0, and supports up to HS-Gear 4 speed grade. It is compatible with UFS 2.1, 3.0 and 3.1 devices. The MIPI UniPro is compliant with "MIPI Alliance Specification for Unified Protocol", v1.8. The MIPI M-PHY is compliant to version 4.1. In order to keep the S32N79 platform driver small and avoid duplicating common DWC code across platform glue drivers, the series also refactors and exports a few reusable DWC helpers. In particular, M-PHY CREG (CBCREG*) register access helpers are moved from the existing AMD Versal2 glue driver into the common ufshcd-dwc layer, and are then used by the platform drivers. The series also introduces a generic Hibern8 TX-FSM polling helper so that multiple platforms can reuse the same pre-link checks. Device tree binding documentation for the S32N79 UFS controller is included, along with SoC and board DTS updates to instantiate and enable the controller. Larisa Grigore (10): ufs: unipro: Move Tx/Rx FSM state definitions to unipro.h ufs: unipro: Add TX/RX FSM state attributes ufs: host: Add common Hibern8 TX FSM polling helper scsi: ufs: Move Versal2 M-PHY CREG access helpers into ufshcd-dwc scsi: ufs: dwc: Export common clock divider and link status helpers dt-bindings: ufs: Add compatibles for S32N79 Host Controller platform driver scsi: ufs: Add NXP S32N79 UFS host controller driver arm64: dts: freescale: s32n79: Add UFS host controller arm64: dts: freescale: s32n79-rdb: Enable UFS MAINTAINERS: Add NXP S32N7 UFS host controller entry .../bindings/ufs/nxp,s32n7-ufshc.yaml | 99 ++++ MAINTAINERS | 8 + arch/arm64/boot/dts/freescale/s32n79-rdb.dts | 6 + arch/arm64/boot/dts/freescale/s32n79.dtsi | 11 + drivers/ufs/host/Kconfig | 12 + drivers/ufs/host/Makefile | 1 + drivers/ufs/host/ufs-amd-versal2.c | 89 +--- drivers/ufs/host/ufs-hisi.c | 48 +- drivers/ufs/host/ufs-hisi.h | 6 - drivers/ufs/host/ufs-nxp-s32n7.c | 464 ++++++++++++++++++ drivers/ufs/host/ufs-qcom.c | 42 +- drivers/ufs/host/ufs-qcom.h | 2 - drivers/ufs/host/ufshcd-dwc.c | 83 +++- drivers/ufs/host/ufshcd-dwc.h | 36 +- drivers/ufs/host/ufshcd-pltfrm.c | 79 +++ drivers/ufs/host/ufshcd-pltfrm.h | 2 + include/ufs/unipro.h | 21 + 17 files changed, 817 insertions(+), 192 deletions(-) create mode 100644 Documentation/devicetree/bindings/ufs/nxp,s32n7-ufshc.yaml create mode 100644 drivers/ufs/host/ufs-nxp-s32n7.c -- 2.43.0