From patchwork Mon Sep 13 12:02:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Parshuram Raju Thombare X-Patchwork-Id: 12488625 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D28A9C433EF for ; Mon, 13 Sep 2021 12:03:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B9A8560F44 for ; Mon, 13 Sep 2021 12:03:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239796AbhIMMEh (ORCPT ); Mon, 13 Sep 2021 08:04:37 -0400 Received: from mx0a-0014ca01.pphosted.com ([208.84.65.235]:59536 "EHLO mx0a-0014ca01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235453AbhIMMEg (ORCPT ); Mon, 13 Sep 2021 08:04:36 -0400 Received: from pps.filterd (m0042385.ppops.net [127.0.0.1]) by mx0a-0014ca01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 18D9TSxD028609; Mon, 13 Sep 2021 05:03:18 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cadence.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=proofpoint; bh=CgQB1XJqjoGyTZ4CYmMoARAwvU4iafYkLbbBv4JWJuA=; b=sYhmSegaFy2smLCbXnblhFHx4hlwGRPsTmMbYrtcVto+3j28EKADrfPl7FkTCW59iu+I 0+I7BMnV1MDWIMcJxMZSNPp9AvITZpcO5l9OZE2Y1csJxY3jz6P860NWFY3ZD/iqfc97 cPYtgPkBkjI9ihnyW1VIJ6z+14jyPv8/At0v0v1+KK8hG6BE6h/CNWSG7g46UXuhwgrM ELDXd3Hv3w23uSLpfNgffU+6bFDdn8cgvgkOJiHgmflykaZ+nGPGCqk6QQq/VYLYiJLs 7099uF2nxRHCq9NvrjEsu8dhUhTMzbCPrBWi9RFiCD28g0eLr7m+b2cVNFEjBPBUzLrU aA== Received: from nam04-dm6-obe.outbound.protection.outlook.com (mail-dm6nam08lp2044.outbound.protection.outlook.com [104.47.73.44]) by mx0a-0014ca01.pphosted.com with ESMTP id 3b1hnetd25-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 13 Sep 2021 05:03:18 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=bxbvejose7jngB+rWGMtwsdYsyuHJfukAo9Y2isiSzn20g7jUMJj+b/UBH6+KJSq5HtB0Cuq/ZvETfwXwhVsu9qRLg87LsYkhiaGg51hxuAN5mpvDY/cHQ53CvrlZcSUvEzPu9k3wdlWgiyIIcWWQ/lbsygtAkY5daGeQ5+cuYBaF8py5dLnfu2I1XUZ58cE1al7nsEnIieWMiWI8KrKyKvnzmgUSfilTf/BZPKV6jcyNZDfBQb2iWl5yKvsVU9Lf+GkH+bJF0ToSARZjbiBKxfSLey2GbeT/fxUpBQpVJQjk7LZIWVxVZAzHxpNiRktmGDOE5tuXUnfspnwk6eIxw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=CgQB1XJqjoGyTZ4CYmMoARAwvU4iafYkLbbBv4JWJuA=; b=nRodGFDdIQ+iD1odbFSsh20FVGPMeMHyEYIdOqAa/bmLUecRELoQq/WTd8oghzmrKEx+5MgxkiUs5zrc9hPcLlr+wv8LLBzegdpgXVXh5V5JBD4Yb2KGW748lXM79nb0GKBWXkc4FF6o5A4jmAl5l1yo7bcQrG8A3gUbQMVeoc5SZspA2TKS6hIbdTUqqL9Wqpww1pBAYwufeAfyTMUoIigpxUfvNbZ28XVOgZa4SYmQ0V092Ns1hxGk9JnG5thpUSEIJpmQp85HswpfGz4Y7k70LbcGFsysCJHY8W9QrzRV2V4FZI3+krRXRdfSSRv0z7fg9rX7N1qJSI4quNR9Zg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 64.207.220.244) smtp.rcpttodomain=ti.com smtp.mailfrom=cadence.com; dmarc=pass (p=none sp=none pct=100) action=none header.from=cadence.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cadence.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=CgQB1XJqjoGyTZ4CYmMoARAwvU4iafYkLbbBv4JWJuA=; b=yf9cxUFOnyRpadGpvXUuxgFCPvlxbszm0t4csmBW/PhZhccMfL9Bn7jkwssiQWGwwveJq4/a8GbbsrOxcpPjbbbKLquTVcBsLWMW5tCPPcMFZJ9b/BvesWRMQljqQrJ9grfERa2kDi6Q443DpTSHh7xnAM8oCq/R9iyzD9+xZZk= Received: from BN9PR03CA0294.namprd03.prod.outlook.com (2603:10b6:408:f5::29) by DM6PR07MB4169.namprd07.prod.outlook.com (2603:10b6:5:bd::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4478.17; Mon, 13 Sep 2021 12:03:16 +0000 Received: from BN8NAM12FT062.eop-nam12.prod.protection.outlook.com (2603:10b6:408:f5:cafe::5b) by BN9PR03CA0294.outlook.office365.com (2603:10b6:408:f5::29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4500.15 via Frontend Transport; Mon, 13 Sep 2021 12:03:16 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 64.207.220.244) smtp.mailfrom=cadence.com; ti.com; dkim=none (message not signed) header.d=none;ti.com; dmarc=pass action=none header.from=cadence.com; Received-SPF: Pass (protection.outlook.com: domain of cadence.com designates 64.207.220.244 as permitted sender) receiver=protection.outlook.com; client-ip=64.207.220.244; helo=wcmailrelayl01.cadence.com; Received: from wcmailrelayl01.cadence.com (64.207.220.244) by BN8NAM12FT062.mail.protection.outlook.com (10.13.183.65) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4523.8 via Frontend Transport; Mon, 13 Sep 2021 12:03:15 +0000 Received: from maileu3.global.cadence.com (maileu3.cadence.com [10.160.88.99]) by wcmailrelayl01.cadence.com (8.14.7/8.14.4) with ESMTP id 18DC3CHB097680 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=OK); Mon, 13 Sep 2021 05:03:13 -0700 X-CrossPremisesHeadersFilteredBySendConnector: maileu3.global.cadence.com Received: from maileu5.global.cadence.com (10.160.110.202) by maileu3.global.cadence.com (10.160.88.99) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 13 Sep 2021 14:02:54 +0200 Received: from maileu3.global.cadence.com (10.160.88.99) by maileu5.global.cadence.com (10.160.110.202) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2176.2; Mon, 13 Sep 2021 14:02:41 +0200 Received: from vleu-orange.cadence.com (10.160.88.83) by maileu3.global.cadence.com (10.160.88.99) with Microsoft SMTP Server (TLS) id 15.0.1497.2 via Frontend Transport; Mon, 13 Sep 2021 14:02:41 +0200 Received: from vleu-orange.cadence.com (localhost.localdomain [127.0.0.1]) by vleu-orange.cadence.com (8.14.4/8.14.4) with ESMTP id 18DC2eiB008139; Mon, 13 Sep 2021 14:02:40 +0200 Received: (from pthombar@localhost) by vleu-orange.cadence.com (8.14.4/8.14.4/Submit) id 18DC2d5h008138; Mon, 13 Sep 2021 14:02:39 +0200 From: Parshuram Thombare To: , , , CC: , , , , , Parshuram Thombare Subject: [PATCH v4 0/2] add support for Cadence's XSPI controller Date: Mon, 13 Sep 2021 14:02:38 +0200 Message-ID: <1631534558-8102-1-git-send-email-pthombar@cadence.com> X-Mailer: git-send-email 2.2.2 MIME-Version: 1.0 X-OrganizationHeadersPreserved: maileu3.global.cadence.com X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 98360668-f5dd-4af0-f297-08d976ae77cb X-MS-TrafficTypeDiagnostic: DM6PR07MB4169: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:9508; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:64.207.220.244;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:wcmailrelayl01.cadence.com;PTR:ErrorRetry;CAT:NONE;SFS:(4636009)(346002)(396003)(376002)(39860400002)(136003)(36092001)(36840700001)(46966006)(107886003)(36756003)(316002)(54906003)(81166007)(82740400003)(4326008)(83380400001)(26005)(2616005)(110136005)(8676002)(42186006)(86362001)(426003)(336012)(478600001)(2906002)(356005)(186003)(82310400003)(36860700001)(70206006)(70586007)(5660300002)(8936002)(47076005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: cadence.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Sep 2021 12:03:15.3848 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 98360668-f5dd-4af0-f297-08d976ae77cb X-MS-Exchange-CrossTenant-Id: d36035c5-6ce6-4662-a3dc-e762e61ae4c9 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=d36035c5-6ce6-4662-a3dc-e762e61ae4c9;Ip=[64.207.220.244];Helo=[wcmailrelayl01.cadence.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM12FT062.eop-nam12.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR07MB4169 X-Proofpoint-GUID: Q1NQ7rRNRj6kdr4LJd4l1BF-PjFZzbkL X-Proofpoint-ORIG-GUID: Q1NQ7rRNRj6kdr4LJd4l1BF-PjFZzbkL X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.391,FMLib:17.0.607.475 definitions=2021-09-13_04,2021-09-09_01,2020-04-07_01 X-Proofpoint-Spam-Details: rule=outbound_check_notspam policy=outbound_check score=0 clxscore=1015 mlxscore=0 bulkscore=0 impostorscore=0 lowpriorityscore=0 malwarescore=0 priorityscore=1501 mlxlogscore=581 phishscore=0 suspectscore=0 spamscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2109030001 definitions=main-2109130081 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org This patch series adds support for Cadence's XSPI controller. It supports 3 work modes. 1. ACMD (auto command) work mode ACMD name is because it uses auto command engine in the controller. It further has 2 modes PIO and CDMA (command DMA). The CDMA work mode is dedicated for high-performance application where very low software overhead is required. In this mode the Command Engine is programmed by the series of linked descriptors stored in system memory. These descriptors provide commands to execute and store status information for finished commands. The PIO mode work mode is dedicated for single operation where constructing a linked list of descriptors would require too much effort. 2. STIG (Software Triggered Instruction Generator) work mode In STIG mode, controller sends low-level instructions to memory. Each instruction is 128-bit width. There is special instruction DataSequence which carries information about data phase. Driver uses Slave DMA interface to transfer data as only this interface can be used in STIG work mode. 3. Direct work mode This work mode allows sending data without invoking any command through the slave interface. Currently only STIG work mode is enabled, remaining work modes will be added later. Changes since v3: 1. Removed ACMD PIO mode. 2. Return IRQ_HANDLED only for handled interrupts. 3. DT binding changes. Changes since v2: 1. Removed extra lock around exec_op. 2. Removed PHY parameters setting from the driver, those will be handled by bootstrap pins available in the controller. Changes since v1: 1. Use ACMD PIO work mode for NOR read, program and erase operations, for everything else use STIG(Software Triggered Instruction Generator) work mode. 2. Changes suggested by Lukas. Parshuram Thombare (2): spi: cadence: add dt-bindings documentation for Cadence XSPI controller spi: cadence: add support for Cadence XSPI controller .../devicetree/bindings/spi/cdns,xspi.yaml | 77 +++ drivers/spi/Kconfig | 12 + drivers/spi/Makefile | 1 + drivers/spi/spi-cadence-xspi.c | 627 +++++++++++++++++++++ 4 files changed, 717 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/cdns,xspi.yaml create mode 100644 drivers/spi/spi-cadence-xspi.c