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Mon, 31 Aug 2020 07:50:41 +0000 From: Robin Gong To: mark.rutland@arm.com, broonie@kernel.org, robh+dt@kernel.org, catalin.marinas@arm.com, vkoul@kernel.org, will.deacon@arm.com, shawnguo@kernel.org, festevam@gmail.com, s.hauer@pengutronix.de, martin.fuzzey@flowbird.group, u.kleine-koenig@pengutronix.de, dan.j.williams@intel.com, matthias.schiffer@ew.tq-group.com, frieder.schrempf@kontron.de, r.schwebel@pengutronix.de, Benjamin.Bara@skidata.com, Richard.Leitner@skidata.com Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, dmaengine@vger.kernel.org, linux-imx@nxp.com Subject: [PATCH v13 02/12] Revert "ARM: dts: imx6: Use correct SDMA script for SPI cores" Date: Tue, 1 Sep 2020 00:03:15 +0800 Message-Id: <1598889805-30399-3-git-send-email-yibin.gong@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1598889805-30399-1-git-send-email-yibin.gong@nxp.com> References: <1598889805-30399-1-git-send-email-yibin.gong@nxp.com> X-ClientProxiedBy: SG2PR02CA0104.apcprd02.prod.outlook.com (2603:1096:4:92::20) 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 (119.31.174.67) by SG2PR02CA0104.apcprd02.prod.outlook.com (2603:1096:4:92::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3326.20 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 79b149c4-833d-43a5-83b4-08d84d828eff X-MS-Exchange-CrossTenant-AuthSource: VE1PR04MB6638.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 Aug 2020 07:50:41.6120 (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: M60RFKV2Z7WbXQKm9mcyl5D2zLvkDKqQN745inq3NbUfwiuaYbeLIXlv16J5e75PV/clLRqHCprETfs+1zP9WQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB5694 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@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 'dd4b487b32a3' firstly. Signed-off-by: Robin Gong Acked-by: Sascha Hauer --- arch/arm/boot/dts/imx6qdl.dtsi | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi index de6daa7..f18fee70 100644 --- a/arch/arm/boot/dts/imx6qdl.dtsi +++ b/arch/arm/boot/dts/imx6qdl.dtsi @@ -327,7 +327,7 @@ clocks = <&clks IMX6QDL_CLK_ECSPI1>, <&clks IMX6QDL_CLK_ECSPI1>; clock-names = "ipg", "per"; - dmas = <&sdma 3 8 1>, <&sdma 4 8 2>; + dmas = <&sdma 3 7 1>, <&sdma 4 7 2>; dma-names = "rx", "tx"; status = "disabled"; }; @@ -341,7 +341,7 @@ clocks = <&clks IMX6QDL_CLK_ECSPI2>, <&clks IMX6QDL_CLK_ECSPI2>; clock-names = "ipg", "per"; - dmas = <&sdma 5 8 1>, <&sdma 6 8 2>; + dmas = <&sdma 5 7 1>, <&sdma 6 7 2>; dma-names = "rx", "tx"; status = "disabled"; }; @@ -355,7 +355,7 @@ clocks = <&clks IMX6QDL_CLK_ECSPI3>, <&clks IMX6QDL_CLK_ECSPI3>; clock-names = "ipg", "per"; - dmas = <&sdma 7 8 1>, <&sdma 8 8 2>; + dmas = <&sdma 7 7 1>, <&sdma 8 7 2>; dma-names = "rx", "tx"; status = "disabled"; }; @@ -369,7 +369,7 @@ clocks = <&clks IMX6QDL_CLK_ECSPI4>, <&clks IMX6QDL_CLK_ECSPI4>; clock-names = "ipg", "per"; - dmas = <&sdma 9 8 1>, <&sdma 10 8 2>; + dmas = <&sdma 9 7 1>, <&sdma 10 7 2>; dma-names = "rx", "tx"; status = "disabled"; };