From patchwork Mon May 27 08:51:12 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Gong X-Patchwork-Id: 10962361 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3E4ED112C for ; Mon, 27 May 2019 08:50:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2E6A828ADE for ; Mon, 27 May 2019 08:50:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 22CDB28AF1; Mon, 27 May 2019 08:50:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C3A3328AEC for ; Mon, 27 May 2019 08:50:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726799AbfE0Iuh (ORCPT ); Mon, 27 May 2019 04:50:37 -0400 Received: from inva021.nxp.com ([92.121.34.21]:53126 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725940AbfE0IuE (ORCPT ); Mon, 27 May 2019 04:50:04 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id CB482200B01; Mon, 27 May 2019 10:50:01 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 22766200092; Mon, 27 May 2019 10:49:56 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id DBCC8402E6; Mon, 27 May 2019 16:49:48 +0800 (SGT) From: yibin.gong@nxp.com To: robh@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, mark.rutland@arm.com, vkoul@kernel.org, dan.j.williams@intel.com Cc: linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH v2 1/7] dmaengine: fsl-edma: add dmamux_nr for next version Date: Mon, 27 May 2019 16:51:12 +0800 Message-Id: <20190527085118.40423-2-yibin.gong@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190527085118.40423-1-yibin.gong@nxp.com> References: <20190527085118.40423-1-yibin.gong@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Robin Gong Next version of edma such as edmav2 on i.mx7ulp has only one dmamux. Add dmamux_nr instead of static macro define 'DMAMUX_NR'. No any function change here. Signed-off-by: Robin Gong --- drivers/dma/fsl-edma-common.h | 1 + drivers/dma/fsl-edma.c | 11 ++++++----- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/dma/fsl-edma-common.h b/drivers/dma/fsl-edma-common.h index c53f76e..21a9cfd 100644 --- a/drivers/dma/fsl-edma-common.h +++ b/drivers/dma/fsl-edma-common.h @@ -145,6 +145,7 @@ struct fsl_edma_engine { void __iomem *membase; void __iomem *muxbase[DMAMUX_NR]; struct clk *muxclk[DMAMUX_NR]; + u32 dmamux_nr; struct mutex fsl_edma_mutex; u32 n_chans; int txirq; diff --git a/drivers/dma/fsl-edma.c b/drivers/dma/fsl-edma.c index d641ef8..7b65ef4 100644 --- a/drivers/dma/fsl-edma.c +++ b/drivers/dma/fsl-edma.c @@ -96,7 +96,7 @@ static struct dma_chan *fsl_edma_xlate(struct of_phandle_args *dma_spec, struct fsl_edma_engine *fsl_edma = ofdma->of_dma_data; struct dma_chan *chan, *_chan; struct fsl_edma_chan *fsl_chan; - unsigned long chans_per_mux = fsl_edma->n_chans / DMAMUX_NR; + unsigned long chans_per_mux = fsl_edma->n_chans / fsl_edma->dmamux_nr; if (dma_spec->args_count != 2) return NULL; @@ -206,6 +206,7 @@ static int fsl_edma_probe(struct platform_device *pdev) return -ENOMEM; fsl_edma->version = v1; + fsl_edma->dmamux_nr = DMAMUX_NR; fsl_edma->n_chans = chans; mutex_init(&fsl_edma->fsl_edma_mutex); @@ -217,7 +218,7 @@ static int fsl_edma_probe(struct platform_device *pdev) fsl_edma_setup_regs(fsl_edma); regs = &fsl_edma->regs; - for (i = 0; i < DMAMUX_NR; i++) { + for (i = 0; i < fsl_edma->dmamux_nr; i++) { char clkname[32]; res = platform_get_resource(pdev, IORESOURCE_MEM, 1 + i); @@ -295,7 +296,7 @@ static int fsl_edma_probe(struct platform_device *pdev) if (ret) { dev_err(&pdev->dev, "Can't register Freescale eDMA engine. (%d)\n", ret); - fsl_disable_clocks(fsl_edma, DMAMUX_NR); + fsl_disable_clocks(fsl_edma, fsl_edma->dmamux_nr); return ret; } @@ -304,7 +305,7 @@ static int fsl_edma_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Can't register Freescale eDMA of_dma. (%d)\n", ret); dma_async_device_unregister(&fsl_edma->dma_dev); - fsl_disable_clocks(fsl_edma, DMAMUX_NR); + fsl_disable_clocks(fsl_edma, fsl_edma->dmamux_nr); return ret; } @@ -323,7 +324,7 @@ static int fsl_edma_remove(struct platform_device *pdev) fsl_edma_cleanup_vchan(&fsl_edma->dma_dev); of_dma_controller_free(np); dma_async_device_unregister(&fsl_edma->dma_dev); - fsl_disable_clocks(fsl_edma, DMAMUX_NR); + fsl_disable_clocks(fsl_edma, fsl_edma->dmamux_nr); return 0; } From patchwork Mon May 27 08:51:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Gong X-Patchwork-Id: 10962359 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 643A9112C for ; Mon, 27 May 2019 08:50:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 53BF628922 for ; Mon, 27 May 2019 08:50:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 479D928942; Mon, 27 May 2019 08:50:37 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EDF5728922 for ; Mon, 27 May 2019 08:50:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726400AbfE0IuE (ORCPT ); Mon, 27 May 2019 04:50:04 -0400 Received: from inva021.nxp.com ([92.121.34.21]:53230 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725869AbfE0IuE (ORCPT ); Mon, 27 May 2019 04:50:04 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 1CC0E200B08; Mon, 27 May 2019 10:50:03 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 6B87C200AF4; Mon, 27 May 2019 10:49:57 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 288B4402F1; Mon, 27 May 2019 16:49:50 +0800 (SGT) From: yibin.gong@nxp.com To: robh@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, mark.rutland@arm.com, vkoul@kernel.org, dan.j.williams@intel.com Cc: linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH v2 2/7] dmaengine: mcf-edma: update to 'dmamux_nr' Date: Mon, 27 May 2019 16:51:13 +0800 Message-Id: <20190527085118.40423-3-yibin.gong@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190527085118.40423-1-yibin.gong@nxp.com> References: <20190527085118.40423-1-yibin.gong@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Robin Gong Update to 'dmamux_nr' instead of static macro DMAMUX_NR since new version edma only has one dmamux. Signed-off-by: Robin Gong --- drivers/dma/fsl-edma-common.c | 2 +- drivers/dma/mcf-edma.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index 680b2a0..c9a17fc 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -84,7 +84,7 @@ void fsl_edma_chan_mux(struct fsl_edma_chan *fsl_chan, void __iomem *muxaddr; unsigned int chans_per_mux, ch_off; - chans_per_mux = fsl_chan->edma->n_chans / DMAMUX_NR; + chans_per_mux = fsl_chan->edma->n_chans / fsl_chan->edma->dmamux_nr; ch_off = fsl_chan->vchan.chan.chan_id % chans_per_mux; muxaddr = fsl_chan->edma->muxbase[ch / chans_per_mux]; slot = EDMAMUX_CHCFG_SOURCE(slot); diff --git a/drivers/dma/mcf-edma.c b/drivers/dma/mcf-edma.c index 7de54b2f..4484190 100644 --- a/drivers/dma/mcf-edma.c +++ b/drivers/dma/mcf-edma.c @@ -189,6 +189,7 @@ static int mcf_edma_probe(struct platform_device *pdev) /* Set up version for ColdFire edma */ mcf_edma->version = v2; + mcf_edma->dmamux_nr = DMAMUX_NR; mcf_edma->big_endian = 1; if (!mcf_edma->n_chans) { From patchwork Mon May 27 08:51:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Gong X-Patchwork-Id: 10962355 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7D09216C1 for ; Mon, 27 May 2019 08:50:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6C6CD28922 for ; Mon, 27 May 2019 08:50:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5FBCC28942; Mon, 27 May 2019 08:50:31 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0DCD028922 for ; Mon, 27 May 2019 08:50:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726598AbfE0IuI (ORCPT ); Mon, 27 May 2019 04:50:08 -0400 Received: from inva021.nxp.com ([92.121.34.21]:53294 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726541AbfE0IuG (ORCPT ); Mon, 27 May 2019 04:50:06 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 5DF3D200B05; Mon, 27 May 2019 10:50:04 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id ABA3A200AFC; Mon, 27 May 2019 10:49:58 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 73051402CB; Mon, 27 May 2019 16:49:51 +0800 (SGT) From: yibin.gong@nxp.com To: robh@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, mark.rutland@arm.com, vkoul@kernel.org, dan.j.williams@intel.com Cc: linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH v2 3/7] dmaengine: fsl-edma-common: move dmamux register to another single function Date: Mon, 27 May 2019 16:51:14 +0800 Message-Id: <20190527085118.40423-4-yibin.gong@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190527085118.40423-1-yibin.gong@nxp.com> References: <20190527085118.40423-1-yibin.gong@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Robin Gong Prepare for edmav2 on i.mx7ulp whose dmamux register is 32bit. No function impacted. Signed-off-by: Robin Gong --- drivers/dma/fsl-edma-common.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index c9a17fc..bb24251 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -77,6 +77,19 @@ void fsl_edma_disable_request(struct fsl_edma_chan *fsl_chan) } EXPORT_SYMBOL_GPL(fsl_edma_disable_request); +static void mux_configure8(struct fsl_edma_chan *fsl_chan, void __iomem *addr, + u32 off, u32 slot, bool enable) +{ + u8 val8; + + if (enable) + val8 = EDMAMUX_CHCFG_ENBL | slot; + else + val8 = EDMAMUX_CHCFG_DIS; + + iowrite8(val8, addr + off); +} + void fsl_edma_chan_mux(struct fsl_edma_chan *fsl_chan, unsigned int slot, bool enable) { @@ -89,10 +102,7 @@ void fsl_edma_chan_mux(struct fsl_edma_chan *fsl_chan, muxaddr = fsl_chan->edma->muxbase[ch / chans_per_mux]; slot = EDMAMUX_CHCFG_SOURCE(slot); - if (enable) - iowrite8(EDMAMUX_CHCFG_ENBL | slot, muxaddr + ch_off); - else - iowrite8(EDMAMUX_CHCFG_DIS, muxaddr + ch_off); + mux_configure8(fsl_chan, muxaddr, ch_off, slot, enable); } EXPORT_SYMBOL_GPL(fsl_edma_chan_mux); From patchwork Mon May 27 08:51:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Gong X-Patchwork-Id: 10962357 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3E50591E for ; Mon, 27 May 2019 08:50:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2F4C728922 for ; Mon, 27 May 2019 08:50:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2339228942; Mon, 27 May 2019 08:50:33 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B9E1A28922 for ; Mon, 27 May 2019 08:50:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726757AbfE0Iub (ORCPT ); Mon, 27 May 2019 04:50:31 -0400 Received: from inva021.nxp.com ([92.121.34.21]:53394 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726654AbfE0IuH (ORCPT ); Mon, 27 May 2019 04:50:07 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id D28BD200079; Mon, 27 May 2019 10:50:05 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 2A179200AF0; Mon, 27 May 2019 10:50:00 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id B2FD7402FB; Mon, 27 May 2019 16:49:52 +0800 (SGT) From: yibin.gong@nxp.com To: robh@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, mark.rutland@arm.com, vkoul@kernel.org, dan.j.williams@intel.com Cc: linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH v2 4/7] dmaengine: fsl-edma-common: version check for v2 instead Date: Mon, 27 May 2019 16:51:15 +0800 Message-Id: <20190527085118.40423-5-yibin.gong@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190527085118.40423-1-yibin.gong@nxp.com> References: <20190527085118.40423-1-yibin.gong@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Robin Gong The next v3 i.mx7ulp edma is based on v1, so change version check logic for v2 instead. Signed-off-by: Robin Gong --- drivers/dma/fsl-edma-common.c | 40 ++++++++++++++++++++-------------------- 1 file changed, 20 insertions(+), 20 deletions(-) diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index bb24251..45d70d3 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -657,26 +657,26 @@ void fsl_edma_setup_regs(struct fsl_edma_engine *edma) edma->regs.erql = edma->membase + EDMA_ERQ; edma->regs.eeil = edma->membase + EDMA_EEI; - edma->regs.serq = edma->membase + ((edma->version == v1) ? - EDMA_SERQ : EDMA64_SERQ); - edma->regs.cerq = edma->membase + ((edma->version == v1) ? - EDMA_CERQ : EDMA64_CERQ); - edma->regs.seei = edma->membase + ((edma->version == v1) ? - EDMA_SEEI : EDMA64_SEEI); - edma->regs.ceei = edma->membase + ((edma->version == v1) ? - EDMA_CEEI : EDMA64_CEEI); - edma->regs.cint = edma->membase + ((edma->version == v1) ? - EDMA_CINT : EDMA64_CINT); - edma->regs.cerr = edma->membase + ((edma->version == v1) ? - EDMA_CERR : EDMA64_CERR); - edma->regs.ssrt = edma->membase + ((edma->version == v1) ? - EDMA_SSRT : EDMA64_SSRT); - edma->regs.cdne = edma->membase + ((edma->version == v1) ? - EDMA_CDNE : EDMA64_CDNE); - edma->regs.intl = edma->membase + ((edma->version == v1) ? - EDMA_INTR : EDMA64_INTL); - edma->regs.errl = edma->membase + ((edma->version == v1) ? - EDMA_ERR : EDMA64_ERRL); + edma->regs.serq = edma->membase + ((edma->version == v2) ? + EDMA64_SERQ : EDMA_SERQ); + edma->regs.cerq = edma->membase + ((edma->version == v2) ? + EDMA64_CERQ : EDMA_CERQ); + edma->regs.seei = edma->membase + ((edma->version == v2) ? + EDMA64_SEEI : EDMA_SEEI); + edma->regs.ceei = edma->membase + ((edma->version == v2) ? + EDMA64_CEEI : EDMA_CEEI); + edma->regs.cint = edma->membase + ((edma->version == v2) ? + EDMA64_CINT : EDMA_CINT); + edma->regs.cerr = edma->membase + ((edma->version == v2) ? + EDMA64_CERR : EDMA_CERR); + edma->regs.ssrt = edma->membase + ((edma->version == v2) ? + EDMA64_SSRT : EDMA_SSRT); + edma->regs.cdne = edma->membase + ((edma->version == v2) ? + EDMA64_CDNE : EDMA_CDNE); + edma->regs.intl = edma->membase + ((edma->version == v2) ? + EDMA64_INTL : EDMA_INTR); + edma->regs.errl = edma->membase + ((edma->version == v2) ? + EDMA64_ERRL : EDMA_ERR); if (edma->version == v2) { edma->regs.erqh = edma->membase + EDMA64_ERQH; From patchwork Mon May 27 08:51:16 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Gong X-Patchwork-Id: 10962347 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 12E9D91E for ; Mon, 27 May 2019 08:50:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 02F2628922 for ; Mon, 27 May 2019 08:50:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EB69128942; Mon, 27 May 2019 08:50:12 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 80AE228922 for ; Mon, 27 May 2019 08:50:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726701AbfE0IuL (ORCPT ); Mon, 27 May 2019 04:50:11 -0400 Received: from inva020.nxp.com ([92.121.34.13]:35790 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725869AbfE0IuK (ORCPT ); Mon, 27 May 2019 04:50:10 -0400 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 562AF1A0B51; Mon, 27 May 2019 10:50:07 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 6AAFD1A0B6C; Mon, 27 May 2019 10:50:01 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id F31E1402FF; Mon, 27 May 2019 16:49:53 +0800 (SGT) From: yibin.gong@nxp.com To: robh@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, mark.rutland@arm.com, vkoul@kernel.org, dan.j.williams@intel.com Cc: linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH v2 5/7] dt-bindings: dma: fsl-edma: add new i.mx7ulp-edma Date: Mon, 27 May 2019 16:51:16 +0800 Message-Id: <20190527085118.40423-6-yibin.gong@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190527085118.40423-1-yibin.gong@nxp.com> References: <20190527085118.40423-1-yibin.gong@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Robin Gong More channel interrupts, one more clock, and only one dmamux on i.mx7ulp-edma. Signed-off-by: Robin Gong --- Documentation/devicetree/bindings/dma/fsl-edma.txt | 44 +++++++++++++++++++--- 1 file changed, 39 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/dma/fsl-edma.txt b/Documentation/devicetree/bindings/dma/fsl-edma.txt index 97e213e..29dd3cc 100644 --- a/Documentation/devicetree/bindings/dma/fsl-edma.txt +++ b/Documentation/devicetree/bindings/dma/fsl-edma.txt @@ -9,15 +9,16 @@ group, DMAMUX0 or DMAMUX1, but not both. 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 - 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 control register's address and size. - interrupts : A list of interrupt-specifiers, one for each entry in - interrupt-names. -- interrupt-names : Should contain: - "edma-tx" - the transmission interrupt - "edma-err" - the error interrupt + interrupt-names on vf610 similar SoC. But for i.mx7ulp per channel + per transmission interrupt, total 16 channel interrupt and 1 + error interrupt(located in the last), no interrupt-names list on + i.mx7ulp for clean on dts. - #dma-cells : Must be <2>. The 1st cell specifies the DMAMUX(0 for DMAMUX0 and 1 for DMAMUX1). Specific request source can only be multiplexed by specific channels @@ -28,6 +29,7 @@ Required properties: - clock-names : A list of channel group clock names. Should contain: "dmamux0" - clock name of mux0 group "dmamux1" - clock name of mux1 group + Note: No dmamux0 on i.mx7ulp, but another 'dma' clk added on i.mx7ulp. - clocks : A list of phandle and clock-specifier pairs, one for each entry in clock-names. @@ -35,6 +37,10 @@ Optional properties: - big-endian: If present registers and hardware scatter/gather descriptors of the eDMA are implemented in big endian mode, otherwise in little mode. +- interrupt-names : Should contain the below on vf610 similar SoC but not used + on i.mx7ulp similar SoC: + "edma-tx" - the transmission interrupt + "edma-err" - the error interrupt Examples: @@ -52,8 +58,36 @@ edma0: dma-controller@40018000 { clock-names = "dmamux0", "dmamux1"; clocks = <&clks VF610_CLK_DMAMUX0>, <&clks VF610_CLK_DMAMUX1>; -}; +}; /* vf610 */ +edma1: dma-controller@40080000 { + #dma-cells = <2>; + compatible = "fsl,imx7ulp-edma"; + reg = <0x40080000 0x2000>, + <0x40210000 0x1000>; + dma-channels = <32>; + interrupts = , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + /* last is eDMA2-ERR interrupt */ + ; + clock-names = "dma", "dmamux0"; + clocks = <&pcc2 IMX7ULP_CLK_DMA1>, + <&pcc2 IMX7ULP_CLK_DMA_MUX1>; +}; /* i.mx7ulp */ * DMA clients DMA client drivers that uses the DMA function must use the format described From patchwork Mon May 27 08:51:17 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Gong X-Patchwork-Id: 10962351 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1EF3191E for ; Mon, 27 May 2019 08:50:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0CD8428927 for ; Mon, 27 May 2019 08:50:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F21A528986; Mon, 27 May 2019 08:50:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4FA7E28927 for ; Mon, 27 May 2019 08:50:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726723AbfE0IuP (ORCPT ); Mon, 27 May 2019 04:50:15 -0400 Received: from inva021.nxp.com ([92.121.34.21]:53624 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725869AbfE0IuO (ORCPT ); Mon, 27 May 2019 04:50:14 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 9C576200079; Mon, 27 May 2019 10:50:12 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id B9532200B03; Mon, 27 May 2019 10:50:06 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 3EC3140307; Mon, 27 May 2019 16:49:55 +0800 (SGT) From: yibin.gong@nxp.com To: robh@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, mark.rutland@arm.com, vkoul@kernel.org, dan.j.williams@intel.com Cc: linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH v2 6/7] dmaengine: fsl-edma: add i.mx7ulp edma2 version support Date: Mon, 27 May 2019 16:51:17 +0800 Message-Id: <20190527085118.40423-7-yibin.gong@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190527085118.40423-1-yibin.gong@nxp.com> References: <20190527085118.40423-1-yibin.gong@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Robin Gong Add edma2 for i.mx7ulp by version v3, since v2 has already been used by mcf-edma. The big changes based on v1 are belows: 1. only one dmamux. 2. another clock dma_clk except dmamux clk. 3. 16 independent interrupts instead of only one interrupt for all channels. Signed-off-by: Robin Gong --- drivers/dma/fsl-edma-common.c | 18 +++++++++- drivers/dma/fsl-edma-common.h | 3 ++ drivers/dma/fsl-edma.c | 84 ++++++++++++++++++++++++++++++++++++++----- 3 files changed, 96 insertions(+), 9 deletions(-) diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index 45d70d3..0d9915c 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -90,6 +90,19 @@ static void mux_configure8(struct fsl_edma_chan *fsl_chan, void __iomem *addr, iowrite8(val8, addr + off); } +void mux_configure32(struct fsl_edma_chan *fsl_chan, void __iomem *addr, + u32 off, u32 slot, bool enable) +{ + u32 val; + + if (enable) + val = EDMAMUX_CHCFG_ENBL << 24 | slot; + else + val = EDMAMUX_CHCFG_DIS; + + iowrite32(val, addr + off * 4); +} + void fsl_edma_chan_mux(struct fsl_edma_chan *fsl_chan, unsigned int slot, bool enable) { @@ -102,7 +115,10 @@ void fsl_edma_chan_mux(struct fsl_edma_chan *fsl_chan, muxaddr = fsl_chan->edma->muxbase[ch / chans_per_mux]; slot = EDMAMUX_CHCFG_SOURCE(slot); - mux_configure8(fsl_chan, muxaddr, ch_off, slot, enable); + if (fsl_chan->edma->version == v3) + mux_configure32(fsl_chan, muxaddr, ch_off, slot, enable); + else + mux_configure8(fsl_chan, muxaddr, ch_off, slot, enable); } EXPORT_SYMBOL_GPL(fsl_edma_chan_mux); diff --git a/drivers/dma/fsl-edma-common.h b/drivers/dma/fsl-edma-common.h index 21a9cfd..2b0cc8e 100644 --- a/drivers/dma/fsl-edma-common.h +++ b/drivers/dma/fsl-edma-common.h @@ -124,6 +124,7 @@ struct fsl_edma_chan { dma_addr_t dma_dev_addr; u32 dma_dev_size; enum dma_data_direction dma_dir; + char chan_name[16]; }; struct fsl_edma_desc { @@ -138,6 +139,7 @@ struct fsl_edma_desc { enum edma_version { v1, /* 32ch, Vybrid, mpc57x, etc */ v2, /* 64ch Coldfire */ + v3, /* 32ch, i.mx7ulp */ }; struct fsl_edma_engine { @@ -145,6 +147,7 @@ struct fsl_edma_engine { void __iomem *membase; void __iomem *muxbase[DMAMUX_NR]; struct clk *muxclk[DMAMUX_NR]; + struct clk *dmaclk; u32 dmamux_nr; struct mutex fsl_edma_mutex; u32 n_chans; diff --git a/drivers/dma/fsl-edma.c b/drivers/dma/fsl-edma.c index 7b65ef4..055f430 100644 --- a/drivers/dma/fsl-edma.c +++ b/drivers/dma/fsl-edma.c @@ -165,6 +165,51 @@ fsl_edma_irq_init(struct platform_device *pdev, struct fsl_edma_engine *fsl_edma return 0; } +static int +fsl_edma2_irq_init(struct platform_device *pdev, + struct fsl_edma_engine *fsl_edma) +{ + struct device_node *np = pdev->dev.of_node; + int i, ret, irq; + int count = 0; + + count = of_irq_count(np); + dev_info(&pdev->dev, "%s Found %d interrupts\r\n", __func__, count); + if (count <= 2) { + dev_err(&pdev->dev, "Interrupts in DTS not correct.\n"); + return -EINVAL; + } + /* + * 16 channel independent interrupts + 1 error interrupt on i.mx7ulp. + * 2 channel share one interrupt, for example, ch0/ch16, ch1/ch17... + * For now, just simply request irq without IRQF_SHARED flag, since 16 + * channels are enough on i.mx7ulp whose M4 domain own some peripherals. + */ + for (i = 0; i < count; i++) { + irq = platform_get_irq(pdev, i); + if (irq < 0) + return -ENXIO; + + sprintf(fsl_edma->chans[i].chan_name, "eDMA2-CH%02d", i); + + /* The last IRQ is for eDMA err */ + if (i == count - 1) + ret = devm_request_irq(&pdev->dev, irq, + fsl_edma_err_handler, + 0, "eDMA2-ERR", fsl_edma); + else + + ret = devm_request_irq(&pdev->dev, irq, + fsl_edma_tx_handler, 0, + fsl_edma->chans[i].chan_name, + fsl_edma); + if (ret) + return ret; + } + + return 0; +} + static void fsl_edma_irq_exit( struct platform_device *pdev, struct fsl_edma_engine *fsl_edma) { @@ -184,8 +229,17 @@ static void fsl_disable_clocks(struct fsl_edma_engine *fsl_edma, int nr_clocks) clk_disable_unprepare(fsl_edma->muxclk[i]); } +static const struct of_device_id fsl_edma_dt_ids[] = { + { .compatible = "fsl,vf610-edma", .data = (void *)v1 }, + { .compatible = "fsl,imx7ulp-edma", .data = (void *)v3 }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, fsl_edma_dt_ids); + static int fsl_edma_probe(struct platform_device *pdev) { + const struct of_device_id *of_id = + of_match_device(fsl_edma_dt_ids, &pdev->dev); struct device_node *np = pdev->dev.of_node; struct fsl_edma_engine *fsl_edma; struct fsl_edma_chan *fsl_chan; @@ -205,7 +259,7 @@ static int fsl_edma_probe(struct platform_device *pdev) if (!fsl_edma) return -ENOMEM; - fsl_edma->version = v1; + fsl_edma->version = (enum edma_version)of_id->data; fsl_edma->dmamux_nr = DMAMUX_NR; fsl_edma->n_chans = chans; mutex_init(&fsl_edma->fsl_edma_mutex); @@ -218,6 +272,22 @@ static int fsl_edma_probe(struct platform_device *pdev) fsl_edma_setup_regs(fsl_edma); regs = &fsl_edma->regs; + if (fsl_edma->version == v3) { + fsl_edma->dmamux_nr = 1; + + fsl_edma->dmaclk = devm_clk_get(&pdev->dev, "dma"); + if (IS_ERR(fsl_edma->dmaclk)) { + dev_err(&pdev->dev, "Missing DMA block clock.\n"); + return PTR_ERR(fsl_edma->dmaclk); + } + + ret = clk_prepare_enable(fsl_edma->dmaclk); + if (ret) { + dev_err(&pdev->dev, "DMA clk block failed.\n"); + return ret; + } + } + for (i = 0; i < fsl_edma->dmamux_nr; i++) { char clkname[32]; @@ -264,7 +334,11 @@ static int fsl_edma_probe(struct platform_device *pdev) } edma_writel(fsl_edma, ~0, regs->intl); - ret = fsl_edma_irq_init(pdev, fsl_edma); + + if (fsl_edma->version == v3) + ret = fsl_edma2_irq_init(pdev, fsl_edma); + else + ret = fsl_edma_irq_init(pdev, fsl_edma); if (ret) return ret; @@ -383,12 +457,6 @@ static const struct dev_pm_ops fsl_edma_pm_ops = { .resume_early = fsl_edma_resume_early, }; -static const struct of_device_id fsl_edma_dt_ids[] = { - { .compatible = "fsl,vf610-edma", }, - { /* sentinel */ } -}; -MODULE_DEVICE_TABLE(of, fsl_edma_dt_ids); - static struct platform_driver fsl_edma_driver = { .driver = { .name = "fsl-edma", From patchwork Mon May 27 08:51:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Gong X-Patchwork-Id: 10962353 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 23261112C for ; Mon, 27 May 2019 08:50:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 104AF28927 for ; Mon, 27 May 2019 08:50:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0271F28942; Mon, 27 May 2019 08:50:30 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2F10128922 for ; Mon, 27 May 2019 08:50:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726741AbfE0IuT (ORCPT ); Mon, 27 May 2019 04:50:19 -0400 Received: from inva020.nxp.com ([92.121.34.13]:35986 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726722AbfE0IuQ (ORCPT ); Mon, 27 May 2019 04:50:16 -0400 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id DC2001A0B4A; Mon, 27 May 2019 10:50:13 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 340AF1A0B56; Mon, 27 May 2019 10:50:08 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 7EBCD40310; Mon, 27 May 2019 16:49:56 +0800 (SGT) From: yibin.gong@nxp.com To: robh@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, mark.rutland@arm.com, vkoul@kernel.org, dan.j.williams@intel.com Cc: linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH v2 7/7] ARM: dts: imx7ulp: add edma device node Date: Mon, 27 May 2019 16:51:18 +0800 Message-Id: <20190527085118.40423-8-yibin.gong@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190527085118.40423-1-yibin.gong@nxp.com> References: <20190527085118.40423-1-yibin.gong@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Robin Gong Add edma device node in dts. Signed-off-by: Robin Gong --- arch/arm/boot/dts/imx7ulp.dtsi | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/arch/arm/boot/dts/imx7ulp.dtsi b/arch/arm/boot/dts/imx7ulp.dtsi index d6b7110..b4f7adf 100644 --- a/arch/arm/boot/dts/imx7ulp.dtsi +++ b/arch/arm/boot/dts/imx7ulp.dtsi @@ -100,6 +100,34 @@ reg = <0x40000000 0x800000>; ranges; + edma1: dma-controller@40080000 { + #dma-cells = <2>; + compatible = "fsl,imx7ulp-edma"; + reg = <0x40080000 0x2000>, + <0x40210000 0x1000>; + dma-channels = <32>; + interrupts = , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + ; + clock-names = "dma", "dmamux0"; + clocks = <&pcc2 IMX7ULP_CLK_DMA1>, + <&pcc2 IMX7ULP_CLK_DMA_MUX1>; + }; + lpuart4: serial@402d0000 { compatible = "fsl,imx7ulp-lpuart"; reg = <0x402d0000 0x1000>;