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Thu, 12 Dec 2019 03:38:11 +0000 Received: from VI1PR04MB4431.eurprd04.prod.outlook.com ([fe80::c947:5ae7:2a68:a4f2]) by VI1PR04MB4431.eurprd04.prod.outlook.com ([fe80::c947:5ae7:2a68:a4f2%3]) with mapi id 15.20.2538.017; Thu, 12 Dec 2019 03:38:11 +0000 From: Peng Ma To: "vkoul@kernel.org" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "shawnguo@kernel.org" , Leo Li , "dan.j.williams@intel.com" , Robin Gong Subject: [v5 1/3] dmaengine: fsl-edma: Add eDMA support for QorIQ LS1028A platform Thread-Topic: [v5 1/3] dmaengine: fsl-edma: Add eDMA support for QorIQ LS1028A platform Thread-Index: AQHVsJ2TZ/jVyH6lNkyvcDWZa1lfcQ== Date: Thu, 12 Dec 2019 03:38:10 +0000 Message-ID: <20191212033714.4090-1-peng.ma@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: HK2PR04CA0049.apcprd04.prod.outlook.com (2603:1096:202:14::17) To VI1PR04MB4431.eurprd04.prod.outlook.com (2603:10a6:803:6f::13) authentication-results: spf=none (sender IP is ) smtp.mailfrom=peng.ma@nxp.com; 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Signed-off-by: Peng Ma Reviewed-by: Robin Gong --- Changed for v5: - no changes drivers/dma/fsl-edma-common.c | 5 +++++ drivers/dma/fsl-edma-common.h | 1 + drivers/dma/fsl-edma.c | 8 ++++++++ 3 files changed, 14 insertions(+) diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index b1a7ca91701a..5697c3622699 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -109,10 +109,15 @@ void fsl_edma_chan_mux(struct fsl_edma_chan *fsl_chan, u32 ch = fsl_chan->vchan.chan.chan_id; void __iomem *muxaddr; unsigned int chans_per_mux, ch_off; + int endian_diff[4] = {3, 1, -1, -3}; u32 dmamux_nr = fsl_chan->edma->drvdata->dmamuxs; chans_per_mux = fsl_chan->edma->n_chans / dmamux_nr; ch_off = fsl_chan->vchan.chan.chan_id % chans_per_mux; + + if (fsl_chan->edma->drvdata->mux_swap) + ch_off += endian_diff[ch_off % 4]; + muxaddr = fsl_chan->edma->muxbase[ch / chans_per_mux]; slot = EDMAMUX_CHCFG_SOURCE(slot); diff --git a/drivers/dma/fsl-edma-common.h b/drivers/dma/fsl-edma-common.h index 5eaa2902ed39..67e422590c9a 100644 --- a/drivers/dma/fsl-edma-common.h +++ b/drivers/dma/fsl-edma-common.h @@ -147,6 +147,7 @@ struct fsl_edma_drvdata { enum edma_version version; u32 dmamuxs; bool has_dmaclk; + bool mux_swap; int (*setup_irq)(struct platform_device *pdev, struct fsl_edma_engine *fsl_edma); }; diff --git a/drivers/dma/fsl-edma.c b/drivers/dma/fsl-edma.c index b626c06ac2e0..eff7ebd8cf35 100644 --- a/drivers/dma/fsl-edma.c +++ b/drivers/dma/fsl-edma.c @@ -233,6 +233,13 @@ static struct fsl_edma_drvdata vf610_data = { .setup_irq = fsl_edma_irq_init, }; +static struct fsl_edma_drvdata ls1028a_data = { + .version = v1, + .dmamuxs = DMAMUX_NR, + .mux_swap = true, + .setup_irq = fsl_edma_irq_init, +}; + static struct fsl_edma_drvdata imx7ulp_data = { .version = v3, .dmamuxs = 1, @@ -242,6 +249,7 @@ static struct fsl_edma_drvdata imx7ulp_data = { static const struct of_device_id fsl_edma_dt_ids[] = { { .compatible = "fsl,vf610-edma", .data = &vf610_data}, + { .compatible = "fsl,ls1028a-edma", .data = &ls1028a_data}, { .compatible = "fsl,imx7ulp-edma", .data = &imx7ulp_data}, { /* sentinel */ } }; From patchwork Thu Dec 12 03:38:15 2019 Content-Type: text/plain; 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Signed-off-by: Peng Ma --- Changed for v5: - separate dts and binding arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi index 8e8a77eb596a..b3716a89fa0d 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi @@ -316,7 +316,7 @@ edma0: dma-controller@22c0000 { #dma-cells = <2>; - compatible = "fsl,vf610-edma"; + compatible = "fsl,ls1028a-edma"; reg = <0x0 0x22c0000 0x0 0x10000>, <0x0 0x22d0000 0x0 0x10000>, <0x0 0x22e0000 0x0 0x10000>; From patchwork Thu Dec 12 03:38:19 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peng Ma X-Patchwork-Id: 11286891 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B8DB7138D for ; 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X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [40.107.15.82 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "dmaengine@vger.kernel.org" , "devicetree@vger.kernel.org" , Peng Ma , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org QORIQ LS1028A soc used fsl,vf610-edma, but it has a little bit different from others, so add new compatible to distinguish them. Signed-off-by: Peng Ma --- Changed for v5: - add new patch Documentation/devicetree/bindings/dma/fsl-edma.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/dma/fsl-edma.txt b/Documentation/devicetree/bindings/dma/fsl-edma.txt index 29dd3ccb1235..e77b08ebcd06 100644 --- a/Documentation/devicetree/bindings/dma/fsl-edma.txt +++ b/Documentation/devicetree/bindings/dma/fsl-edma.txt @@ -10,6 +10,7 @@ Required properties: - compatible : - "fsl,vf610-edma" for eDMA used similar to that on Vybrid vf610 SoC - "fsl,imx7ulp-edma" for eDMA2 used similar to that on i.mx7ulp + - "fsl,fsl,ls1028a-edma" for eDMA used similar to that on Vybrid vf610 SoC - reg : Specifies base physical address(s) and size of the eDMA registers. The 1st region is eDMA control register's address and size. The 2nd and the 3rd regions are programmable channel multiplexing