From nobody Fri Apr 3 03:01:35 2026 Received: from mail-wm1-f51.google.com (mail-wm1-f51.google.com [209.85.128.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C63D73A2561 for ; Wed, 25 Mar 2026 09:50:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774432243; cv=none; b=BsbteHh+/EWa1gFMiAKz0RQe8GWDT16yw50ej4Px+Q6U306ixgBDpUf9BexmAIspU9L1FF+63nM+WP2Ik+6rZy7Moqdz5wMGewI4xpQzHB/2r2P/K7rOdtdp2bhXszwR1eVRA7KZinrH7mwz4uyiov4WlwyHOGeRIOeGHJFfXMs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774432243; c=relaxed/simple; bh=7S2TtGy+pFB82DMt7G19YnjCGJ08Au8tH8VwrKarfG8=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=WNLogPIgjeNqhp+koMw4w4MiXGFvKEJkTY2+LjX+QVmJi+KgIJFgIlmMBfPqh+heLBdU1MBZxqXSqUzWmNxIN3zCuQVa4ZiCMQwdJx/MDIyalOLQSIn3rCDqWuK8PaEpqTRZJyb/aXRoLw1F1gTKgVa8BVT21S2q3oFZXFwbzsM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=itsewIPQ; arc=none smtp.client-ip=209.85.128.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="itsewIPQ" Received: by mail-wm1-f51.google.com with SMTP id 5b1f17b1804b1-4853c1ca73aso21262455e9.2 for ; Wed, 25 Mar 2026 02:50:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1774432239; x=1775037039; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=bPBXxnt46yKYRfcxb6dOkKkkhDI9ZyG+pcJC//3JKGU=; b=itsewIPQqZWfK1liI8j5nMEOCK3vlEAzeTIU+41s+TpempieBBllMTtC8QJEfg+IlN M+F4QB1oGKIxw4n4B5HZUfaoh7BDn8sXTsZDdp8KmPOihRx3odO/7AjbCZQrbyBCwx7L XB6MDzphcs3iKbUhFuXMPuHq5Zc9yINF2A+VklqaPGhZUpAS753qBaG+Wa7V24hlYmNq JbCB8SABkynoVhI46dc2iZKU/S0hEveYS/5vTkMig7QSovcclgs5hTbGLgblwZB09gvZ qee/PLtHQkrd3aYoO/zz7MwuomsZQPV/xJsFpj4li00391dh4u5nGJ5Z+o5snqxvATkh zJig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1774432239; x=1775037039; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=bPBXxnt46yKYRfcxb6dOkKkkhDI9ZyG+pcJC//3JKGU=; b=JJp0+mloN0xtyyHuUvnQtzEq3n8VlWqxz5XMYguA+BZ2JCWaD2AiDhXenIEZxhuDzr VOGEEaOHgnDISC1gcn1U8vgQ69nKpba+Ais3vFrM2YLFAy6cOK0dxC2zbl3C0m6DDULc O0iIYolFId2liFXfdyyS2BX6zlz0706rwtoPdxF0Qsv3Yf/v6kQ+rDWOUAfecePTFk+4 ESMe0ahCzT4YJZhW8un9dU4DvJTnGlQojD/+6MGQT/A6iZd8z27Rj2S6EhEH7TL+DQkQ Wa9fIHzn+Iax6lf5USWyjubdjur6eB8VDt3Q7JR3OmPnS7x728WmjPUWQpmcRdANvxsb H/tA== X-Forwarded-Encrypted: i=1; AJvYcCVKVnqe7r7DPULzlEqOSc1tf13B98xFe9AoPFu+cjC1+eDYxMk0qivd7ds9nFvSKM+dt1KcZPjW56wT8rI=@vger.kernel.org X-Gm-Message-State: AOJu0YygtjwJJdcDH9t6v/5YvuEcg43/vnFm8iljQsZ4HAlNAB5ApgVo GkagKFI3awXC8OzYBdl51gZzVHJqWfXaiZRLbjYJ0TW3hggDqE7emWto X-Gm-Gg: ATEYQzwCTE/0DqT6pM7WDxuLYKsG6r7VepFQbjoPF6crhDfYjsp6poombuaXlxeZLhp ZvNuxMQI55Vr6K/EhAji1yLAP/jrLrcGNUlD37xhUXWauabNLkztMW1oNd6wKhK8tV+AY5XW2vv d7EO4f74EjfOkg1ZKIKxFvu3xV5RQKViDExYZfnnhxzXlIebrSyxaUALPEQa+sTvaBJAJxPVgPB 4nSRHnU9F4cPxUQE4Nust4LglPHWKNobnPHcpE+0ttuxWOLt9gMmwI/nrDJleZWDsdXq8o73OCK hZPRK79Yxb1VcvC10Wyh7N6rdz3toXSwI6HRg8mEMYa6VUG200Ui795cd24jgrc9AlifQMPVLUy V4NIzYwhPT6NOzO15giPg18O5IeLOmg7xsCCW4jauFxxGMICYWDBVak33tdKnvXwd12cUP3SRMe tJt2hreLU/oVun50/y5wqznKx5XPY5VKTKy2YecqRrViSaaqsJj2yGkU6pJeGKL+FtZ0upv587p mbNFBpi8ODqxvlz/SvUrXkGn4ZQ/2w/F1y3Ais0da/P/G5RnguPFnVKHjD+SkRjd7VBHgsE/8uJ X-Received: by 2002:a05:600c:3b12:b0:471:700:f281 with SMTP id 5b1f17b1804b1-4871607a3c5mr45415425e9.25.1774432238789; Wed, 25 Mar 2026 02:50:38 -0700 (PDT) Received: from [127.0.1.1] (248.201.173.83.static.wline.lns.sme.cust.swisscom.ch. [83.173.201.248]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-487116ee57esm111397755e9.14.2026.03.25.02.50.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Mar 2026 02:50:38 -0700 (PDT) From: Franz Schnyder Date: Wed, 25 Mar 2026 10:50:20 +0100 Subject: [PATCH 1/3] arm64: dts: freescale: imx95-toradex-smarc: Add SER2 interface Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260325-mainline-update-imx95-v1-1-b5ebe976655b@toradex.com> References: <20260325-mainline-update-imx95-v1-0-b5ebe976655b@toradex.com> In-Reply-To: <20260325-mainline-update-imx95-v1-0-b5ebe976655b@toradex.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Francesco Dolcini , Franz Schnyder X-Mailer: b4 0.14.3 From: Franz Schnyder The Toradex SMARC iMX95 has four exposed serial interfaces, one of these is SER2, which supports RTS/CTS. Add UART support for SMARC SER2. Signed-off-by: Franz Schnyder --- .../arm64/boot/dts/freescale/imx95-toradex-smarc-dev.dts | 5 +++++ arch/arm64/boot/dts/freescale/imx95-toradex-smarc.dtsi | 16 ++++++++++++= ++++ 2 files changed, 21 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx95-toradex-smarc-dev.dts b/ar= ch/arm64/boot/dts/freescale/imx95-toradex-smarc-dev.dts index 5b05f256fd52..7437e523ff63 100644 --- a/arch/arm64/boot/dts/freescale/imx95-toradex-smarc-dev.dts +++ b/arch/arm64/boot/dts/freescale/imx95-toradex-smarc-dev.dts @@ -210,6 +210,11 @@ &lpuart3 { status =3D "okay"; }; =20 +/* SMARC SER2 */ +&lpuart6 { + status =3D "okay"; +}; + /* SMARC MDIO, shared between all ethernet ports */ &netc_emdio { status =3D "okay"; diff --git a/arch/arm64/boot/dts/freescale/imx95-toradex-smarc.dtsi b/arch/= arm64/boot/dts/freescale/imx95-toradex-smarc.dtsi index 7a73958f6eec..1d369983cf7d 100644 --- a/arch/arm64/boot/dts/freescale/imx95-toradex-smarc.dtsi +++ b/arch/arm64/boot/dts/freescale/imx95-toradex-smarc.dtsi @@ -22,6 +22,7 @@ aliases { rtc1 =3D &scmi_bbm; serial0 =3D &lpuart2; serial1 =3D &lpuart1; + serial2 =3D &lpuart6; serial3 =3D &lpuart3; }; =20 @@ -615,6 +616,13 @@ &lpuart3 { pinctrl-0 =3D <&pinctrl_uart3>; }; =20 +/* SMARC SER2 */ +&lpuart6 { + pinctrl-names =3D "default"; + pinctrl-0 =3D <&pinctrl_uart6>; + uart-has-rtscts; +}; + &mu7 { status =3D "okay"; }; @@ -1105,6 +1113,14 @@ pinctrl_uart3: uart3grp { ; /* SMARC P141 - SER3_RX */ }; =20 + /* SMARC SER2 */ + pinctrl_uart6: uart6grp { + fsl,pins =3D , /* SMARC P139 -= SER2_CTS# */ + , /* SMARC P138 - SER2_RTS= # */ + , /* SMARC P137 - SER2_RX */ + ; /* SMARC P136 - SER2_TX */ + }; + /* On-module eMMC */ pinctrl_usdhc1: usdhc1grp { fsl,pins =3D , /* SD1_CLK */ --=20 2.43.0