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=-11.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 E58F2C43387 for ; Fri, 11 Jan 2019 00:53:48 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id ADC5F20879 for ; Fri, 11 Jan 2019 00:53:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="P8Q53S/u"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=baylibre-com.20150623.gappssmtp.com header.i=@baylibre-com.20150623.gappssmtp.com header.b="zVrA6T/F" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ADC5F20879 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:References :In-Reply-To:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=lwlsbLMT2SeKHwKhZZbCGlhHr9GtZmWvSushotbsfVc=; b=P8Q53S/uDWu2Mn 7I7c/fw67/OMYxIZR4v5H1LcqYpmI5duEpin8gSrfCu83O19wqE0MZU1g3ArUVgSR9rNYo6bCPsU/ asIozWiC9PI61XRF0ePa9k0fWYXDj3OGnxwS/ywucmLsHgXUOArcPsJigoCL7OmLFr8dl1WZeWRyr +nfHH2mtFGFhfHHz00/JxG6swI+Pf2EWSzC/d9bDaKIyXoJT5qAT872s045TwzfHmDzkAs8gQUala pP9bqy1wFv0TNqY9YInUj/58d7xLZpTFpT/kJFRn0zKGJR834A7Pyy+lbrgeY7+gG+TBg3gY/+Bqt fkHq2s8OUB3bcWD9tAYQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1ghl4u-0004Pe-Pj; Fri, 11 Jan 2019 00:53:40 +0000 Received: from mail-pl1-x643.google.com ([2607:f8b0:4864:20::643]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1ghl4r-0004PH-HU for linux-amlogic@lists.infradead.org; Fri, 11 Jan 2019 00:53:39 +0000 Received: by mail-pl1-x643.google.com with SMTP id e5so5945777plb.5 for ; Thu, 10 Jan 2019 16:53:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:in-reply-to:references:date:message-id :mime-version; bh=d+X9gpNYVSva8N2u0I5OWMv9xuzeEIgVw0AyDjUxoJI=; b=zVrA6T/FKuIYh9Kgg9FkzvDQWkQZpyopoZp/bD8sGDhCyLF7rBXVZmjgLnzToTccZL 7jeXqAtmHxb+h490SSFuLdr4qRR+dSqtcY8jqTqxXfdYn8/CiP5HOOaDkyDOxezpjp1C aJw6X9eZpvufQJr6oyXRJiQ/E3809djtMJcU2+bRno4ZJeN9JoAU7ixWVtcPNTDWCkmQ wahduqkLpNWKv56/6uX7DZew2jegvYq48aJ4nOO3v4aaSpCnNpQx+bwCYqlxKH2Dnbjh Av2iZ1h5dJwplzsq07mbeMkqUtoD4LcK8KoxNGiH8hvwepZVGnB17NiVtMkmsWI+vW56 h+nA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:in-reply-to:references:date :message-id:mime-version; bh=d+X9gpNYVSva8N2u0I5OWMv9xuzeEIgVw0AyDjUxoJI=; b=E8MnbZrbslAR6Luk67k7kmi8MqQY+N/ke7HTS1+HLLqhV+WNVFwl4s00GCmBDHsP44 ZvC2VZp+PZczXRT01K3PpFE1LSl79rQE3ovvpCeJ1Mwuo/JsA1NFbYiczaAB3Ga2k4ca nRlfphZxH0oTN9jCgg9nNTfrPDQorbC2eBCIxDpvQLacfc6JcHgjFpVdf6qJ73Eq3u2y xeq1zJCY/afxFWr9tJivYaiCfAixHG9RWIsyi4hRe14XFC6gby610DNTfh3wOIaij0d4 AJwa1uMfO9YXve0zKyRMWhzApvxehi4PylAcvH/hs5TctRODKAYRwZ2hINzEjoEu1bqj U0kQ== X-Gm-Message-State: AJcUukeOiw65BP8cAMnFhDWicODmbmEkIstlXwnqMaVIjJLl11ssVEf9 iqgrX3bslOOEXphpzyVCQzHJxw== X-Google-Smtp-Source: ALg8bN7kf17ouikPbX3kwEK63xd10riC0IV86qLI8Pb2l50tpM/h5j+1Iao91I9mV4FU97dcAQhi2A== X-Received: by 2002:a17:902:aa8c:: with SMTP id d12mr12707258plr.25.1547168016422; Thu, 10 Jan 2019 16:53:36 -0800 (PST) Received: from localhost (c-71-197-186-152.hsd1.wa.comcast.net. [71.197.186.152]) by smtp.googlemail.com with ESMTPSA id m65sm136399873pfg.180.2019.01.10.16.53.35 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 10 Jan 2019 16:53:35 -0800 (PST) From: Kevin Hilman To: Jerome Brunet , Martin Blumenstingl Subject: Re: [PATCH 2/2] arm64: dts: meson: libretech-cc: switch eMMC to 1.8v In-Reply-To: References: <20181220161037.23756-1-jbrunet@baylibre.com> <20181220161037.23756-3-jbrunet@baylibre.com> Date: Thu, 10 Jan 2019 16:53:35 -0800 Message-ID: <7h5zuwqak0.fsf@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190110_165337_579119_92B891B4 X-CRM114-Status: GOOD ( 21.27 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Carlo Caione , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Jerome Brunet writes: > On Sat, 2018-12-22 at 18:01 +0100, Martin Blumenstingl wrote: >> Hi Jerome, >> >> On Thu, Dec 20, 2018 at 5:11 PM Jerome Brunet wrote: >> > While some 3.3v eMMC 4.0 are available from libretech, the default >> > option for the aml-s905x-cc seems to 1.8v 5.0 modules. >> nit-pick: >> can you please state which module (storage size) you used for testing? >> you probably still remember that we had some confusion on Odroid-C2 >> which eMMC module works and which doesn't, so let's be explicit here >> >> > Signed-off-by: Jerome Brunet >> > --- >> > .../boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts | 9 +++++---- >> > 1 file changed, 5 insertions(+), 4 deletions(-) >> > >> > diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts >> > b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts >> > index daad007fac1f..d0d202cf7161 100644 >> > --- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts >> > +++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts >> > @@ -118,8 +118,8 @@ >> > vddio_boot: regulator-vddio_boot { >> > compatible = "regulator-fixed"; >> > regulator-name = "VDDIO_BOOT"; >> > - regulator-min-microvolt = <3300000>; >> > - regulator-max-microvolt = <3300000>; >> > + regulator-min-microvolt = <1800000>; >> > + regulator-max-microvolt = <1800000>; >> is there a 3.3V -> 1.8V regulator on the eMMC module? >> I'm not sure about the schematics but it seems to be that the board >> itself supplies only 3.3V to the eMMC connector, so I'm not sure where >> 1.8V come from in this case > > The module is indeed fed by 3.3v only but it has embedded LDOs add will feed > back the supply of the BOOT gpio bank. > > I tried the following modules: > * 8 GB samsung - v1.0-170420 > * 32 GB toshiba - v1.0-170421 > > I think you can't get them here [0]. > > In theory, these 4.x modules [1] could also work. They don't have the LDOs and > are directly feeding back the 3.3v to the BOOT bank. Since the modules are > advertised as being compatible with the Allwinner boards only, and not the AML > ones, it should not be the default option. > > [0] : > https://www.loverpi.com/collections/libre-computer-project/products/libre-computer-board-emmc-5-x-module?variant=4173557729 > [1] : > https://www.loverpi.com/collections/libre-computer-project/products/libre-computer-board-emmc-4-x-module?variant=761282232333 > >> can you please add a comment to the .dts about this? > > Sure > OK, I'll wait for a v2 of this series. Kevin _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic