From patchwork Tue Sep 5 08:29:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cem Tenruh X-Patchwork-Id: 13374382 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9E137C83F33 for ; Tue, 5 Sep 2023 08:29:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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bh=Kg397CrkQqG9fmZcT+FqOScCKxnI+YkyG4eKblw/U9M=; b=oSKCLoqU6ICTbXi/PNotN1a0cYMi582aC+KJGYEtqhZhNzjmrhTg2jf5fuxOPtsE yP5Hj04V/UWsaKmEk/Q/sZtZ7jOXnL/28PDtK0ZF6i9bMsBve9yNnB3mNyrsLMRl I8OhH0eBNIh0ijQynDxtJ5cXH/MJvX6Q+ui2n04ESOo=; X-AuditID: ac14000a-6e25770000001e37-38-64f6e6dd0884 Received: from idefix.phytec.de (Unknown_Domain [172.25.0.20]) by mickerik.phytec.de (PHYTEC Mail Gateway) with SMTP id F1.71.07735.DD6E6F46; Tue, 5 Sep 2023 10:29:17 +0200 (CEST) Received: from llp-ausleih01.phytec.de ([172.25.32.128]) by idefix.phytec.de (IBM Domino Release 9.0.1FP7) with ESMTP id 2023090510291738-2901 ; Tue, 5 Sep 2023 10:29:17 +0200 From: Cem Tenruh To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team Cc: linux-arm-kernel@lists.infradead.org, upstream@lists.phytec.de Subject: [PATCH v2 4/4] arm64: dts: imx8mp-phyboard-pollux: Add support for RS232/RS485 Date: Tue, 5 Sep 2023 10:29:16 +0200 Message-Id: <20230905082916.18852-5-c.tenruh@phytec.de> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230905082916.18852-1-c.tenruh@phytec.de> References: <20230905082916.18852-1-c.tenruh@phytec.de> MIME-Version: 1.0 X-MIMETrack: Itemize by SMTP Server on Idefix/Phytec(Release 9.0.1FP7|August 17, 2016) at 05.09.2023 10:29:17, Serialize by Router on Idefix/Phytec(Release 9.0.1FP7|August 17, 2016) at 05.09.2023 10:29:17 X-TNEFEvaluated: 1 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrKLMWRmVeSWpSXmKPExsWyRpJBRPfus28pBr8WGVqs2XuOyeLhVX+L VVN3slj0vXjIbLHp8TVWi65fK5ktWvceYbf4u30Ti8WLLeIW3e/UHbg8ds66y+6xaVUnm8ed a3vYPDYvqffo725h9dj4bgeTR/9fgwD2KC6blNSczLLUIn27BK6M/mO7mAv+8VZcWjadtYHx HXcXIyeHhICJxNF719m7GLk4hAS2MUo8O3ccyrnIKLHt1kJ2kCo2AVWJeccmMoPYIgKHmCRW XokDsZkFnCQ+NnxlAbGFBcIlWvZcZASxWQRUJM5tfsYGYvMKmEu8brvHBrFNXmL/wbNgczgF LCTunD4EFhcCqul/85kRol5Q4uTMJywgR0gIXGGUmNSwD6pZSOL0YohmZgFtiWULXzNPYBSY haRnFpLUAkamVYxCuZnJ2alFmdl6BRmVJanJeimpmxhBQS/CwLWDsW+OxyFGJg7GQ4wSHMxK Irzv5L+lCPGmJFZWpRblxxeV5qQWH2KU5mBREue938OUKCSQnliSmp2aWpBaBJNl4uCUamAM MT33+byg4p1Ajj3bxDQnHFttkTo/835BWILB7eCTdhp11zlYWIvalz62Pv8nt2mCGU/t3Lxv IuflDqhNkDspe27br8zf5X3LpLmbi+/1Ck+Y9OG456zaSM+C/Ad/+cUuL3r83nIv2+Ja7Yxr 0/UuL5bfebnavnhJpbf774nXj1y1O+D9w2SOEktxRqKhFnNRcSIAfFGG1GgCAAA= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230905_012925_913916_A794074E X-CRM114-Status: GOOD ( 11.13 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Teresa Remmet Add UART2 for RS232/RS485 support. Signed-off-by: Teresa Remmet (Updated the node by not setting the reserved bits(BIT 0 and BIT 3) and enabled internal pullup for RX and TX.) Signed-off-by: Yashwanth Varakala Reviewed-by: Fabio Estevam --- Changes in v2: - Edited commit message - Added comment to UART2 node --- .../freescale/imx8mp-phyboard-pollux-rdk.dts | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts b/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts index f2620dea19ed..0b867f348816 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts @@ -178,6 +178,16 @@ &usb_dwc3_1 { status = "okay"; }; +/* RS232/RS485 */ +&uart2 { + assigned-clocks = <&clk IMX8MP_CLK_UART2>; + assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_80M>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_uart2>; + uart-has-rtscts; + status = "okay"; +}; + /* SD-Card */ &usdhc2 { assigned-clocks = <&clk IMX8MP_CLK_USDHC2>; @@ -299,6 +309,15 @@ MX8MP_IOMUXC_GPIO1_IO12__GPIO1_IO12 0x10 >; }; + pinctrl_uart2: uart2grp { + fsl,pins = < + MX8MP_IOMUXC_UART2_RXD__UART2_DCE_RX 0x140 + MX8MP_IOMUXC_UART2_TXD__UART2_DCE_TX 0x140 + MX8MP_IOMUXC_SAI3_RXC__UART2_DCE_CTS 0x140 + MX8MP_IOMUXC_SAI3_RXD__UART2_DCE_RTS 0x140 + >; + }; + pinctrl_usdhc2_pins: usdhc2-gpiogrp { fsl,pins = < MX8MP_IOMUXC_SD2_CD_B__GPIO2_IO12 0x1c4