From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 02 Nov 2022 09:15:10 +0100 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1oq8ty-00C1ha-SW for lore@lore.pengutronix.de; Wed, 02 Nov 2022 09:15:10 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oq8tw-0002CP-SX for lore@pengutronix.de; Wed, 02 Nov 2022 09:15:10 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:From:In-Reply-To: Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=w7hw+qQ0TWvkA9nHQyUhx4BUcL+uvdwaIF8FQGdKQjA=; b=LvAfyqGlCs23zkO7MCJFxfGSIv SthNbkRyRoqTTNgpuXStpM1f2CwGjT5nyW4C3AhjjC4BfH0DzrrZxZSukwK99v0PLi1g1rKnmX4bY FAyE3ogYNWpaIUfCsYLuAxK8f2kabK9+78ZDzIAa77jliIzeLW2OPdoGLBDh0sb1aI2qNIws3Wgcc k9vH2Xm9wCFiX0TgtQtnYmMOiR/H7zlYIDWHdyojYnI8wi+n5yatFwEXmluPKHpjxQqjWEiDATxub nVKLZ7xGijh4ckPTPoIzwMdUTia9oPq1GtxAEZ8GgSoqYVHXNlz+eYRD7EdTJT+qoTQFbbYjiMh5j q7Ww4rOw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oq8si-008n7v-RU; Wed, 02 Nov 2022 08:13:52 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oq8sd-008n6j-Bx for barebox@lists.infradead.org; Wed, 02 Nov 2022 08:13:48 +0000 Received: from ptx.hi.pengutronix.de ([2001:67c:670:100:1d::c0]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oq8sc-00025b-24; Wed, 02 Nov 2022 09:13:46 +0100 Received: from sha by ptx.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1oq8sb-00080Y-Pz; Wed, 02 Nov 2022 09:13:45 +0100 Date: Wed, 2 Nov 2022 09:13:45 +0100 To: Marco Felsch Cc: barebox@lists.infradead.org Message-ID: <20221102081345.GG3143@pengutronix.de> References: <20221101133050.687403-1-m.felsch@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221101133050.687403-1-m.felsch@pengutronix.de> X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-Accept-Language: de,en X-Accept-Content-Type: text/plain User-Agent: Mutt/1.10.1 (2018-07-13) From: Sascha Hauer X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221102_011347_443345_6C19BF87 X-CRM114-Status: GOOD ( 25.79 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.2 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH] ARM: dts: i.MX8MP: increase off-on delay on the SD Vcc regulator X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) On Tue, Nov 01, 2022 at 02:30:50PM +0100, Marco Felsch wrote: > This commit is required to fix the SD card detection mechanism. Without > this commit the SD card (auto-)detection fails when booted from this > sd-card: > > mmc1: Query interface conditions failed: -110 > mmc1: SD operation condition set timed out > > The commit is ported from U-Boot: > > | commit 247bbeb74c186963d9365db3136d0285618bd9a7 > | Author: Andrey Zhizhikin > | Date: Sat Dec 5 17:29:17 2020 +0000 > | > | ARM: dts: imx8m: increase off-on delay on the SD Vcc regulator > | > | Some SD Card controller and power circuitry has increased capacitance, > | which keeps the internal logic remains powered after regulator is switch > | off. This is generally the case when card is switched to SD104 mode, > | where a power cycle should be performed. In case if the card internal > | logic remains powered, it causes a subsequent failure of mode > | transition, effectively leading to failed enumeration. > | > | Introduce a delay of 20 msec in order to provide a possibility for > | internal card circuitry to drain voltages and perform a power cycle > | correctly. > | > | Similar fix is done in commit c49d0ac38a76 ("ARM: dts: rmobile: Increase > | off-on delay on the SD Vcc regulator") targeted Renesas SOCs. > | > | Signed-off-by: Andrey Zhizhikin > | Cc: Stefano Babic > > Signed-off-by: Marco Felsch > --- > arch/arm/dts/imx8mp-evk.dts | 4 ++++ > 1 file changed, 4 insertions(+) Applied, thanks Sascha > > diff --git a/arch/arm/dts/imx8mp-evk.dts b/arch/arm/dts/imx8mp-evk.dts > index 3264ade4b8..77b438287c 100644 > --- a/arch/arm/dts/imx8mp-evk.dts > +++ b/arch/arm/dts/imx8mp-evk.dts > @@ -35,6 +35,10 @@ > reset-deassert-us = <100000>; > }; > > +®_usdhc2_vmmc { > + off-on-delay-us = <20000>; > +}; > + > &usdhc2 { > #address-cells = <1>; > #size-cells = <1>; > -- > 2.30.2 > > > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |