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Mon, 11 May 2020 09:32:24 +0000 From: Robin Gong To: s.hauer@pengutronix.de, vkoul@kernel.org, shawnguo@kernel.org, u.kleine-koenig@pengutronix.de, robh+dt@kernel.org, festevam@gmail.com, dan.j.williams@intel.com, mark.rutland@arm.com, catalin.marinas@arm.com Cc: will.deacon@arm.com, l.stach@pengutronix.de, martin.fuzzey@flowbird.group, kernel@pengutronix.de, linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-imx@nxp.com, dmaengine@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v7 RESEND 01/13] Revert "ARM: dts: imx6q: Use correct SDMA script for SPI5 core" Date: Tue, 12 May 2020 01:32:24 +0800 Message-Id: <1589218356-17475-2-git-send-email-yibin.gong@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1589218356-17475-1-git-send-email-yibin.gong@nxp.com> References: <1589218356-17475-1-git-send-email-yibin.gong@nxp.com> Content-Type: text/plain X-ClientProxiedBy: SG2PR06CA0141.apcprd06.prod.outlook.com (2603:1096:1:1f::19) To VE1PR04MB6638.eurprd04.prod.outlook.com (2603:10a6:803:119::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from robin-OptiPlex-790.ap.freescale.net (119.31.174.66) by SG2PR06CA0141.apcprd06.prod.outlook.com (2603:1096:1:1f::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.2979.27 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: 3FLvKC9txymVDcCGdsdV97Gqvb+L+0WNvblF6naBgq/TV2jGBUyhc7l31dttCssaiNCxjOgdZ2eG5JGT5eaiKQJYiy+5L5rBjqKaMG1jfKJaUq044AJCaNIUhX/nQRFJg+CIbOJB8NSqfNqj3hIsaaJNrjs9v1uTRv/VBOEc47R4gBsEQP6V+oWX67J6KEijADseAOGf7iBrhA3yMKLxBVPPGScF+MGLV3R9zdL+srxF4EAXvrQSZ3SSdUjpET4k1gT4OddTsHuTAaa07VJdgsOypN9W0g+gKUeUmV30koPF+oneUvxcVbcIvOHZKNSjf9O7qNDEgBooAGRNPfKeTXqc88+fm3hT8ZSjw67FGniPaQJiJlaW9XbSMnyBkaIPgXE9N/BgYEUES6DUiuukz3zNVxPq4dmtsyOSTXUyB0Po0vrXGC1vSH0DWwHtd9HeqhiXTYktiNSLdFmbuhd19gRGNGQ/TFRqhuMuVqNHimg= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7c32cd4a-2217-450f-7039-08d7f58e3625 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 May 2020 09:32:24.2636 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: brJ/qTy4V2uVrLfC5cRo9EQ0AP04hqx7a9/J390pnWK3t0476RXN+sLbfyPfYTsIFBicztYac8ZZSVrXpnIxzA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR04MB6637 Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org There are two ways for SDMA accessing SPBA devices: one is SDMA->AIPS ->SPBA(masterA port), another is SDMA->SPBA(masterC port). Please refer to the 'Figure 58-1. i.MX 6Dual/6Quad SPBA connectivity' of i.mx6DQ Reference Manual. SDMA provide the corresponding app_2_mcu/mcu_2_app and shp_2_mcu/mcu_2_shp script for such two options. So both AIPS and SPBA scripts should keep the same behaviour, the issue only caught in AIPS script sounds not solide. The issue is more likely as the ecspi errata ERR009165(http://www.nxp.com/docs/en/errata/IMX6DQCE.pdf): eCSPI: TXFIFO empty flag glitch can cause the current FIFO transfer to be sent twice So revert commit 'df07101e1c4a' firstly. Signed-off-by: Robin Gong --- arch/arm/boot/dts/imx6q.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi index 78a4d64..afdd9eb 100644 --- a/arch/arm/boot/dts/imx6q.dtsi +++ b/arch/arm/boot/dts/imx6q.dtsi @@ -177,7 +177,7 @@ clocks = <&clks IMX6Q_CLK_ECSPI5>, <&clks IMX6Q_CLK_ECSPI5>; clock-names = "ipg", "per"; - dmas = <&sdma 11 8 1>, <&sdma 12 8 2>; + dmas = <&sdma 11 7 1>, <&sdma 12 7 2>; dma-names = "rx", "tx"; status = "disabled"; }; -- 2.7.4 From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.9 required=3.0 tests=DATE_IN_FUTURE_06_12, DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 D0764C47255 for ; 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Mon, 11 May 2020 09:32:24 +0000 From: Robin Gong To: s.hauer@pengutronix.de, vkoul@kernel.org, shawnguo@kernel.org, u.kleine-koenig@pengutronix.de, robh+dt@kernel.org, festevam@gmail.com, dan.j.williams@intel.com, mark.rutland@arm.com, catalin.marinas@arm.com Subject: [PATCH v7 RESEND 01/13] Revert "ARM: dts: imx6q: Use correct SDMA script for SPI5 core" Date: Tue, 12 May 2020 01:32:24 +0800 Message-Id: <1589218356-17475-2-git-send-email-yibin.gong@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1589218356-17475-1-git-send-email-yibin.gong@nxp.com> References: <1589218356-17475-1-git-send-email-yibin.gong@nxp.com> X-ClientProxiedBy: SG2PR06CA0141.apcprd06.prod.outlook.com (2603:1096:1:1f::19) To VE1PR04MB6638.eurprd04.prod.outlook.com (2603:10a6:803:119::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from robin-OptiPlex-790.ap.freescale.net (119.31.174.66) by SG2PR06CA0141.apcprd06.prod.outlook.com (2603:1096:1:1f::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.2979.27 via Frontend Transport; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org There are two ways for SDMA accessing SPBA devices: one is SDMA->AIPS ->SPBA(masterA port), another is SDMA->SPBA(masterC port). Please refer to the 'Figure 58-1. i.MX 6Dual/6Quad SPBA connectivity' of i.mx6DQ Reference Manual. SDMA provide the corresponding app_2_mcu/mcu_2_app and shp_2_mcu/mcu_2_shp script for such two options. So both AIPS and SPBA scripts should keep the same behaviour, the issue only caught in AIPS script sounds not solide. The issue is more likely as the ecspi errata ERR009165(http://www.nxp.com/docs/en/errata/IMX6DQCE.pdf): eCSPI: TXFIFO empty flag glitch can cause the current FIFO transfer to be sent twice So revert commit 'df07101e1c4a' firstly. Signed-off-by: Robin Gong --- arch/arm/boot/dts/imx6q.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi index 78a4d64..afdd9eb 100644 --- a/arch/arm/boot/dts/imx6q.dtsi +++ b/arch/arm/boot/dts/imx6q.dtsi @@ -177,7 +177,7 @@ clocks = <&clks IMX6Q_CLK_ECSPI5>, <&clks IMX6Q_CLK_ECSPI5>; clock-names = "ipg", "per"; - dmas = <&sdma 11 8 1>, <&sdma 12 8 2>; + dmas = <&sdma 11 7 1>, <&sdma 12 7 2>; dma-names = "rx", "tx"; status = "disabled"; }; -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel