From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.7 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B236BC433E0 for ; Thu, 4 Mar 2021 11:26:39 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 35C7664F0A for ; Thu, 4 Mar 2021 11:26:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 35C7664F0A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:Cc:To:Subject:Message-ID:Date:From:In-Reply-To: References:MIME-Version:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=qyhu8KZwGWERqOtqHhqDsL409qooPFp8330TwgHDUdY=; b=O+KVs/XAq8px7j9XO7LgaLvyW kcpoT8jBSrEcGSMPgJuhlVCvlawoD9tTn3y3/Dtb6rG5eMWCeo9+T9kRW7dqX5OBuu4k9g1H8kwcM oefN2wnQ7AAQI728l8ds2IEmX2jsC3LkFJrU9Lu+O9kTU+AraPP0tPgRzEZO4afWWrtkKGbiM/G4F OR1mYARPxurFpfCWHiK9ATZZ9DdkiW/f5pBF8vAQSf+O+7lEj6wMHmycXnTXXc6zg8kj9BLbJbXs+ VN0EVzQ+9tcMpDPOPL8EgLeWZdH6Kmm0b2eyg7akIDWkbbcI/GRdslqwks4WtStH8u0ZCxJpPY++w QMLpLzcdQ==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lHm6T-008SK3-CB; Thu, 04 Mar 2021 11:25:13 +0000 Received: from mail-lf1-x133.google.com ([2a00:1450:4864:20::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lHm6M-008SJb-CL for linux-arm-kernel@lists.infradead.org; Thu, 04 Mar 2021 11:25:08 +0000 Received: by mail-lf1-x133.google.com with SMTP id q25so22354609lfc.8 for ; Thu, 04 Mar 2021 03:25:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=cdkH6uGk7+7YBpvtpYA2s/VJXeyCOp8/uk6uSIcITXo=; b=Hj1VeFufZlR1BIkHnUW/iBAAGn0Vqq3woKHu1s4QlbeCSR0sEk+66q+qu1BtYWAy/B zf+zUHV3I5wHDw7dZQXljh9KUiJbY/W56Que+gltpRefx+3mgB9wV6FsYAVzARNU/I1R ZHy3BDH80yPtxrrdNNSZO7veHkntpDZReOUvLoEpER/ayLPuHuN04fL+iYvitTGzJJ2W B1G7XEa68nC3Lqj7jh8SQ6AmmzY9LkAwPgeioJVKlfJry5MUWgZq6eUBDsuWIqau8mDn Ev1w0bphDdFPsFU0ckzjslWCtvw4neoNsilX5fQwmsTS2Jh2Tj+vLDjp1IeK+kXhxLtX kNHg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=cdkH6uGk7+7YBpvtpYA2s/VJXeyCOp8/uk6uSIcITXo=; b=C/d4VKfZlF1ajrq/Wj53aNt9/twMs0h+61L90PyakHaqcLTUPtQ77vl1vo7DjBVEAN lHl7r4qOTvRLrcrw5x3VIrqy6J5ifb/wTOt3iEm+dyGa09uJhUT2L66AG20Yztg5IFxy HgO71p8T23cu7yNPvHDhh89smQK4TwuenmktTcpBJfzRiBDRx/NupbKd0Um4A6NzqlEx u9j1BvrpMnBLLOBZbesOWBT6GfinwoD/lQN1CM0ZwwVGKAQQj4XquEYl27/ew+5AePXm uNQndp39FLden6XkX6wGGU9Cki7i4fenpv+/xGvmclzIG7Vxyvj6USoQawUaMv6MPJu8 26eg== X-Gm-Message-State: AOAM5330Bb+8F+qbzUKxbYpEcNPYHDRPP2yBwRoN7zXR8iEtfGil9haW GnEHXNvskUDMi13oO/WC48kqlVO572GK36+n7a8= X-Google-Smtp-Source: ABdhPJx61uBUr8bPAf5qE9CaMOl4dVtpaTqJQL4D+jzTmf2R7QMTWbLK7Ylu6ecXM0+p2mBVd1iOeK0LwGCgVXPlsFs= X-Received: by 2002:a05:6512:3884:: with SMTP id n4mr2047802lft.539.1614857104735; Thu, 04 Mar 2021 03:25:04 -0800 (PST) MIME-Version: 1.0 References: <20210304093139.471554-1-philippe.schenker@toradex.com> In-Reply-To: <20210304093139.471554-1-philippe.schenker@toradex.com> From: Fabio Estevam Date: Thu, 4 Mar 2021 08:24:54 -0300 Message-ID: Subject: Re: [PATCH] ARM: dts: colibri-imx6ull: Change drive strength for usdhc2 To: Philippe Schenker Cc: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , NXP Linux Team , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , Shawn Guo , "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" , linux-kernel 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Philippe, On Thu, Mar 4, 2021 at 6:31 AM Philippe Schenker wrote: > > The current setting reflects about 86 Ohms of source-impedance > on the SDIO signals where the WiFi board is hooked up. PCB traces are > routed with 50 Ohms impedance and there are no serial resistors on > those traces. > > This commit changes the source-impedance to 52 Ohms to better match our > hardware design. > > The impedances given in this commit message refer to 3.3V operation. > > Signed-off-by: Philippe Schenker Reviewed-by: Fabio Estevam _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel