From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from cp2.siel.si (cp2.siel.si [46.19.12.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F04333C1BE for ; Thu, 7 May 2026 06:50:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.19.12.180 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778136644; cv=none; b=T4G49ZA98n2U1oFRQVQNWpeiRG3mcG5MdL5XwCDVNUF5U4hw50E2MM2dfsk/B4f3g0a4sTajx3dvBONLTMnDsxK10BsS1xQtnAO5rTun8FpRG3B8QQsuJe6e0vgxHfsG9z/FIaKoGUGFQkgzh2dGCaCPR61TKIIIeeMsGYlQ8u4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778136644; c=relaxed/simple; bh=zV3h3YZUqwMAzlsfJlUFtxTEwGS817hDx6OayXGeU/8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=o4mzBlF0Jrrpx8EBSR3FcUdHavg+pYYNVX/npqSbms3+5K27uQfEUSAI1p/NZ5LA/vyG6pJtcmr5R9E4uNLnw8zkyjsiFpMaEwIMn72jVm99g/zFNvQgUK1TAKk4sIToF4SpSD4I545ug4KaflbZ16cfsXqPRVV874K56k4UwYo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=norik.com; spf=pass smtp.mailfrom=norik.com; dkim=pass (2048-bit key) header.d=norik.com header.i=@norik.com header.b=WbLCmWzz; arc=none smtp.client-ip=46.19.12.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=norik.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=norik.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=norik.com header.i=@norik.com header.b="WbLCmWzz" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=norik.com; s=default; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=XndlQw1vEUKvftg+tDwjaYGyrUBmct9QSEEl9yDREPU=; b=WbLCmWzzRRAB0itnHzJJsvQ8ys wW9q2qm+pHJcq58Zz7oQa5Lt1xfPDgHeE4gHW2Idd8uji5zwE31GtFLPAv2CJZoEI5de7iJqVGFEF fZ+ns0VC3MOUrZVALHSCP7yMfW4O2ycOipxDLDRZiVBJsmHcrrhw5ddx5JJMB1LzGun8es/uGsA++ YBuQgkz993L+3Wj8WcCkXfcnhh5sNawQYl2EpxGxZzYgk5Gr7sBxalGcyKwqc20vyOOmuzvhPsbYw WxHDWsegVEN7j/oloXfY7urn9olB1TGkkE/FqjvV9k5uBZm1VIcM6dC4VMQ2gHXloqEUdmeC9CWc3 VRj+mW3g==; Received: from 89-212-21-243.static.t-2.net ([89.212.21.243]:40514 helo=localhost.localdomain) by cp2.siel.si with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.99.2) (envelope-from ) id 1wKs6Y-0000000AGWs-3Wgs; Thu, 07 May 2026 08:21:02 +0200 From: Primoz Fiser 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, upstream@lists.phytec.de Subject: [PATCH 2/3] arm64: dts: freescale: imx{91,93}-phycore-som: Adjust PHY RST drive-strength Date: Thu, 7 May 2026 08:20:57 +0200 Message-Id: <20260507062058.1711292-2-primoz.fiser@norik.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260507062058.1711292-1-primoz.fiser@norik.com> References: <20260507062058.1711292-1-primoz.fiser@norik.com> Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cp2.siel.si X-AntiAbuse: Original Domain - lists.linux.dev X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - norik.com X-Get-Message-Sender-Via: cp2.siel.si: authenticated_id: primoz.fiser@norik.com X-Authenticated-Sender: cp2.siel.si: primoz.fiser@norik.com X-Source: X-Source-Args: X-Source-Dir: According to measurements, the PHY reset signal shows an overshoot on the rising edge that exceeds the specified limits (max 2.1V) when using X4 strength on ENET2_RXC. Reduce drive-strength to X1 to decrease the overshoot and bring signal within specification limits. Signed-off-by: Primoz Fiser --- arch/arm64/boot/dts/freescale/imx91-phycore-som.dtsi | 2 +- arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx91-phycore-som.dtsi b/arch/arm64/boot/dts/freescale/imx91-phycore-som.dtsi index 19e7e84ad6f7..8038d92da2aa 100644 --- a/arch/arm64/boot/dts/freescale/imx91-phycore-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx91-phycore-som.dtsi @@ -220,7 +220,7 @@ MX91_PAD_ENET2_TD0__ENET2_RGMII_TD0 0x50e MX91_PAD_ENET2_TD1__ENET2_RGMII_TD1 0x50e MX91_PAD_ENET2_TX_CTL__ENET2_RGMII_TX_CTL 0x50e MX91_PAD_ENET2_TD2__ENET2_TX_CLK2 0x4000050e - MX91_PAD_ENET2_RXC__GPIO4_IO23 0x51e + MX91_PAD_ENET2_RXC__GPIO4_IO23 0x502 >; }; diff --git a/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi b/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi index 626160132e3c..a624aed48efe 100644 --- a/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi @@ -222,7 +222,7 @@ MX93_PAD_ENET2_TD0__ENET1_RGMII_TD0 0x50e MX93_PAD_ENET2_TD1__ENET1_RGMII_TD1 0x50e MX93_PAD_ENET2_TX_CTL__ENET1_RGMII_TX_CTL 0x50e MX93_PAD_ENET2_TD2__ENET1_TX_CLK 0x4000050e - MX93_PAD_ENET2_RXC__GPIO4_IO23 0x51e + MX93_PAD_ENET2_RXC__GPIO4_IO23 0x502 >; }; -- 2.34.1