From patchwork Sat Aug 6 08:58:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vadym Kochan X-Patchwork-Id: 595850 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 418DDC19F2D for ; Sat, 6 Aug 2022 08:59:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241796AbiHFI7N (ORCPT ); Sat, 6 Aug 2022 04:59:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54618 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229743AbiHFI7K (ORCPT ); Sat, 6 Aug 2022 04:59:10 -0400 Received: from EUR04-VI1-obe.outbound.protection.outlook.com (mail-eopbgr80109.outbound.protection.outlook.com [40.107.8.109]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 09D1615FE0; Sat, 6 Aug 2022 01:59:08 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=MDykZvN4vAfSwQOaHLzgdzh6Dp8H/Km5YwHZSNa6PRzqoLHaYWNV0OJIm6vFHfw+7TQuBgJAH71p8AHN8sqliK3MC/XalsbcR8dvBwM+9Plj22eE+d18sJ1DYTDZVH1haUAg0lFxFdZ84xyr6iHX+36gxmgaLEdIC/IVwc1AIFbDqAyfwstIjz8K6rYKUsjgPrS2xUEgpdE6YUzMhOemgzPGNV0+OKANSlUE202+T1LHezk7gyUlkD000yl/WKgrDD0WpZCydU3difTsIIwqROZpud1SVer+E55EDSCifZkBQhpPjkUd1fPi4Um3SsESnR3QMDr176GTCcFDrXhIvg== 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:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=CHuXGICrjgFOuVxk2MyjXKIwyKADe4tqLiEvVuzXzjM=; b=jFiDRMb2Huqo210En8lE7ofBgnJJcYkLj6ftHzWRqPSPCD4BlPwXeKGLWj7Vu/Cm1SO7mWWJmK+1q5j9SihrOEL2hnSSKHoUVLr6XhtyTY2Uq2H2FfbM/xCMBHXJo/nBCh/KfeXdcxnwEFimH41EG/pccxDufVMLLY/xvOuJZ2wGKmKdISRgNVhRxOk8KdyseNnSJPJDy3jFcmhSb9zbBgvFltoBnE/cCXtu3MacG4/v1/9U2ONLo01BHsio67t5ag0WWPr39gW0XiLivflv03HkGOsMa+qJB9dgApfyXKNATzkjcueRRlxjN/OPAhQPazFoF7fDWXF7m67sSFWuEA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=plvision.eu; dmarc=pass action=none header.from=plvision.eu; dkim=pass header.d=plvision.eu; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=plvision.eu; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=CHuXGICrjgFOuVxk2MyjXKIwyKADe4tqLiEvVuzXzjM=; b=Xmy13RodtYmb1kgmVSZ79Jcnnc1ZECDVUk6FUBCzgMXzT++ku/JqgcyGxIzVrDjfq16Jkl+YhuISXDg5WvN071tTcjQUu4jwykqBDZdDzSYHoWuOC68KK52YpGOtW8bjerZeU5+6npXBSt3TKh3R7EzC/P04vSUk7LP9FVOfR1A= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=plvision.eu; Received: from VI1P190MB0317.EURP190.PROD.OUTLOOK.COM (2603:10a6:802:38::26) by DB9P190MB1098.EURP190.PROD.OUTLOOK.COM (2603:10a6:10:22e::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5504.15; Sat, 6 Aug 2022 08:59:05 +0000 Received: from VI1P190MB0317.EURP190.PROD.OUTLOOK.COM ([fe80::80b1:f2a0:4365:3c59]) by VI1P190MB0317.EURP190.PROD.OUTLOOK.COM ([fe80::80b1:f2a0:4365:3c59%3]) with mapi id 15.20.5504.014; Sat, 6 Aug 2022 08:59:05 +0000 From: Vadym Kochan To: Hu Ziji , Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Adrian Hunter , Vadym Kochan , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Elad Nachman Subject: [PATCH 3/3] arm64: dts: marvell: Add DTSI to fix Xenon SDHCI 2G limitation on AC5 SoC Date: Sat, 6 Aug 2022 11:58:14 +0300 Message-Id: <20220806085818.9873-4-vadym.kochan@plvision.eu> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220806085818.9873-1-vadym.kochan@plvision.eu> References: <20220806085818.9873-1-vadym.kochan@plvision.eu> X-ClientProxiedBy: FR3P281CA0080.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:1f::15) To VI1P190MB0317.EURP190.PROD.OUTLOOK.COM (2603:10a6:802:38::26) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: c6da7dee-35fe-4bad-2ceb-08da7789ea61 X-MS-TrafficTypeDiagnostic: DB9P190MB1098:EE_ 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:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:VI1P190MB0317.EURP190.PROD.OUTLOOK.COM; PTR:; CAT:NONE; SFS:(13230016)(4636009)(346002)(136003)(376002)(39830400003)(34036004)(366004)(396003)(44832011)(2906002)(41320700001)(8676002)(66476007)(66556008)(66946007)(4326008)(508600001)(6486002)(316002)(36756003)(110136005)(38100700002)(26005)(41300700001)(52116002)(6666004)(86362001)(6512007)(6506007)(8936002)(5660300002)(38350700002)(1076003)(186003)(2616005)(83380400001); DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: plvision.eu X-MS-Exchange-CrossTenant-Network-Message-Id: c6da7dee-35fe-4bad-2ceb-08da7789ea61 X-MS-Exchange-CrossTenant-AuthSource: VI1P190MB0317.EURP190.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Aug 2022 08:59:05.4058 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 03707b74-30f3-46b6-a0e0-ff0a7438c9c4 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: ispCFq80mwyzTNMIvdXi9WECFCPi66khtssBit39ulLAlWOcWidZZq2PMTGCbMHFaHIOt6Gp5UIoHCwyn/ZgqknNGB1e1JTWK/fvwo2sZp4= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB9P190MB1098 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org There is a limitation in Xenon SDHCI on AC5 SoC that it can address only the first 2G of memory, so it was decided to use reserved-memory as bounce buffer because swiotlb=force and SDMA mode did not help. There is a custom property which is used to attach bounce memory region to the device on demand (only if more 2G memory is used). This is a software property only so it was not described in the dt-bindings. Separate DTSI is added to reserve memory only for boards with eMMC cards. Signed-off-by: Vadym Kochan --- .../boot/dts/marvell/ac5-98dx25xx-sdhci.dtsi | 40 +++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 arch/arm64/boot/dts/marvell/ac5-98dx25xx-sdhci.dtsi diff --git a/arch/arm64/boot/dts/marvell/ac5-98dx25xx-sdhci.dtsi b/arch/arm64/boot/dts/marvell/ac5-98dx25xx-sdhci.dtsi new file mode 100644 index 000000000000..cc5e53b64473 --- /dev/null +++ b/arch/arm64/boot/dts/marvell/ac5-98dx25xx-sdhci.dtsi @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Device Tree Include file for AC5 with SDHCI support + * + * Copyright (C) 2022 Marvell + */ + +/ { + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + /* + * SDHCI controller in AC5 SoC has 2G address space + * limitation, so in case if RAM has more 2G then use + * this dedicated memory region. + */ + sdhci_dma_restricted_region: sdhci-dma-restricted-region@0 { + compatible = "restricted-dma-pool"; + reg = <0x2 0x0 0x0 0x200000>; + }; + }; + + sdhci_dma_bounce_pool: sdhci-dma-bounce-pool@0 { + memory-region = <&sdhci_dma_restricted_region>; + }; + + soc { + sdhci: sdhci@805c0000 { + compatible = "marvell,ac5-sdhci"; + reg = <0x0 0x805c0000 0x0 0x300>; + interrupts = ; + clocks = <&cnm_clock>; + clock-names = "core"; + marvell,ac5-sdhci-dma-bounce-pool = <&sdhci_dma_bounce_pool>; + status = "okay"; + }; + }; +};