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=-1.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 8BEA7C169C4 for ; Wed, 6 Feb 2019 08:42:45 +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 59ACF217F9 for ; Wed, 6 Feb 2019 08:42:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="nk/MukHs"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="xF4XjsJa" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 59ACF217F9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mtd-bounces+linux-mtd=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:References:In-Reply-To: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=2mfOw8yvUWtQJm0VRk3rTw5TDQf8qInDZCbTajlxWc0=; b=nk/MukHsZC0t+C 3NoHjX1M8qYzqP46ok7N/JJ00wT1ZAuiDBYMxlHCdIIbX65WjK/TVNT7FnrxMtSTvDlL7ibLK3TyZ +CuhjGRFqQ5qV5u9bwVHVspde/CNTlswQ9B7D02lJyMffiP1Hg0Gxef7HnovGdMYFcPldRECaceRF jpzSMeWJs0KaAANkTeP47hRzhlAN6bRzOVZ5Bcs09r1kY5aUJCgHr+AsMGe7jeeSvlhVtBxiNlp6V AOK9o/waTqA1nYrs9El6eSyLRl+sxg7NPuz1bWmksZ85v0C0/EY7olx9kDX2m2/FrbYdmUfoCdxc/ RuzYeeNYpkLs74RKSpaw==; 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 1grIn5-0004as-4Y; Wed, 06 Feb 2019 08:42:43 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1grImz-0004aE-7J for linux-mtd@lists.infradead.org; Wed, 06 Feb 2019 08:42:39 +0000 Received: from localhost (unknown [91.160.177.164]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2A9B92073D; Wed, 6 Feb 2019 08:42:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1549442555; bh=Bau3v10/Vt8Y81oqOlrnH3EznqJG2Yu4PBK/974FP94=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=xF4XjsJaKry+RPXfvvQRROGC8Ml71pGnrb3+Ko9He5rqptqwX0aAy1QZOKQnWg781 op1bumk+QaV4N8XYOrElP4DKMXvhEXwjxNUxZBnUn+hvwJSwGHuZ1tL07sFpCgR8tC BOuKKLv+w1UFw0MeyqjeUYB6vgCQdOzrE5Fgy0Fc= Date: Wed, 6 Feb 2019 09:42:26 +0100 From: Boris Brezillon To: Martin Kepplinger Subject: Re: [PATCH v2] mtd: rawnand: gpmi: fix MX28 bus master lockup problem Message-ID: <20190206094226.1dadbf61@kernel.org> In-Reply-To: <20190205155251.18733-1-martin.kepplinger@ginzinger.com> References: <20190205155251.18733-1-martin.kepplinger@ginzinger.com> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190206_004237_291689_9B120639 X-CRM114-Status: GOOD ( 12.15 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Manfred Schlaegl , richard@nod.at, linux-kernel@vger.kernel.org, stable@vger.kernel.org, marek.vasut@gmail.com, linux-mtd@lists.infradead.org, Fabio Estevam , miquel.raynal@bootlin.com, han.xu@nxp.com, computersforpeace@gmail.com, dwmw2@infradead.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org SGkgTWFydGluLAoKT24gVHVlLCA1IEZlYiAyMDE5IDE2OjUyOjUxICswMTAwCk1hcnRpbiBLZXBw bGluZ2VyIDxtYXJ0aW4ua2VwcGxpbmdlckBnaW56aW5nZXIuY29tPiB3cm90ZToKCj4gRGlzYWJs ZSBCQ0ggc29mdCByZXNldCBhY2NvcmRpbmcgdG8gTVgyMyBlcnJhdHVtICMyODQ3ICgiQkNIIHNv ZnQKPiByZXNldCBtYXkgY2F1c2UgYnVzIG1hc3RlciBsb2NrIHVwIikgZm9yIE1YMjggdG9vLiBJ dCBoYXMgdGhlIHNhbWUKPiBwcm9ibGVtLgo+IAo+IE9ic2VydmVkIHByb2JsZW06IG9uY2UgcGVy IDEwMCwwMDArIE1YMjggcmVib290cyBOQU5EIHJlYWQgZmFpbGVkIG9uCj4gRE1BIHRpbWVvdXQg ZXJyb3JzOgo+IFsgICAgMS43NzA4MjNdIFVCSTogYXR0YWNoaW5nIG10ZDMgdG8gdWJpMAo+IFsg ICAgMi43NjgwODhdIGdwbWlfbmFuZDogRE1BIHRpbWVvdXQsIGxhc3QgRE1BIDoxCj4gWyAgICAz Ljk1ODA4N10gZ3BtaV9uYW5kOiBCQ0ggdGltZW91dCwgbGFzdCBETUEgOjEKPiBbICAgIDQuMTU2 MDMzXSBncG1pX25hbmQ6IEVycm9yIGluIEVDQy1iYXNlZCByZWFkOiAtMTEwCj4gWyAgICA0LjE2 MTEzNl0gVUJJIHdhcm5pbmc6IHViaV9pb19yZWFkOiBlcnJvciAtMTEwIHdoaWxlIHJlYWRpbmcg NjQKPiBieXRlcyBmcm9tIFBFQiAwOjAsIHJlYWQgb25seSAwIGJ5dGVzLCByZXRyeQo+IFsgICAg NC4xNzEyODNdIHN0ZXAgMSBlcnJvcgo+IFsgICAgNC4xNzM4NDZdIGdwbWlfbmFuZDogQ2hpcDog MCwgRXJyb3IgLTEKPiAKPiBXaXRob3V0IEJDSCBzb2Z0IHJlc2V0IHdlIHN1Y2Nlc3NmdWxseSBl eGVjdXRlZCAxLDAwMCwwMDAgTVgyOCByZWJvb3RzLgo+IAo+IEkgaGF2ZSBhIHF1b3RlIGZyb20g TlhQIHJlZ2FyZGluZyB0aGlzIHByb2JsZW0sIGZyb20gSnVseSAxOHRoIDIwMTY6Cj4gCj4gIkFz IHRoZSBpLk1YMjMgYW5kIGkuTVgyOCBhcmUgb2YgdGhlIHNhbWUgZ2VuZXJhdGlvbiwgdGhleSBz aGFyZSBtYW55Cj4gY2hhcmFjdGVyaXN0aWNzLiBVbmZvcnR1bmF0ZWx5LCBhbHNvIHRoZSBlcnJh dGFzIG1heSBiZSBzaGFyZWQuCj4gSW4gY2FzZSBvZiB0aGUgZG9jdW1lbnRlZCBlcnJhdGFzIGFu ZCB0aGUgd29ya2Fyb3VuZHMsIHlvdSBjYW4gYWxzbwo+IGFwcGx5IHRoZSB3b3JrYXJvdW5kIHNv bHV0aW9uIG9mIG9uZSBkZXZpY2Ugb24gdGhlIG90aGVyIG9uZS4gVGhpcyBoYXZlCj4gYmVlbiBy ZXBvcnRlZCwgYnV0IEnigJltIGFmcmFpZCB0aGF0IHRoZXJlIGFyZSBub3QgYW4gZXN0aW1hdGVk IGRhdGUgZm9yCj4gdXBkYXRpbmcgdGhlIEVycmF0YSBkb2N1bWVudHMuCj4gUGxlYXNlIGFjY2Vw dCBvdXIgYXBvbG9naWVzIGZvciBhbnkgaW5jb252ZW5pZW5jZXMgdGhpcyBtYXkgY2F1c2UuIgo+ IAo+IEZpeGVzOiA2ZjJhNmE1MjU2MGEgKCJtdGQ6IG5hbmQ6IGdwbWk6IHJlc2V0IEJDSCBlYXJs aWVyLCB0b28sIHRvIGF2b2lkCj4gTkFORCBzdGFydHVwIHByb2JsZW1zIikKClBsZWFzZSBtYWtl IHN1cmUgdGhpcyBGaXhlcyBsaW5lIGlzIG5vdCB3cmFwcGVkIG5leHQgdGltZS4KClRoYW5rcywK CkJvcmlzCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18KTGludXggTVREIGRpc2N1c3Npb24gbWFpbGluZyBsaXN0Cmh0dHA6Ly9saXN0cy5pbmZy YWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtbXRkLwo= 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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS 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 0BE35C169C4 for ; Wed, 6 Feb 2019 08:42:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C3061217F9 for ; Wed, 6 Feb 2019 08:42:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1549442558; bh=Bau3v10/Vt8Y81oqOlrnH3EznqJG2Yu4PBK/974FP94=; h=Date:From:To:Cc:Subject:In-Reply-To:References:List-ID:From; b=R6xx5TQxamGCt+DZkaGIBtYtyB3XQNxkv1efSqZgSTukCCaj97D9ZT/WG3XXPSZuV paz1TLdext+jlSKP5ZfAkU+tBdH7noXIdWgTCpQSB0Wt+ZGWG5mkLNu/XK6GALV0fJ 5QzXkcDF+6jXFwMdnFowBGPjS35CS80HP4pa8ykQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728315AbfBFImh (ORCPT ); Wed, 6 Feb 2019 03:42:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:58782 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726721AbfBFImg (ORCPT ); Wed, 6 Feb 2019 03:42:36 -0500 Received: from localhost (unknown [91.160.177.164]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2A9B92073D; Wed, 6 Feb 2019 08:42:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1549442555; bh=Bau3v10/Vt8Y81oqOlrnH3EznqJG2Yu4PBK/974FP94=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=xF4XjsJaKry+RPXfvvQRROGC8Ml71pGnrb3+Ko9He5rqptqwX0aAy1QZOKQnWg781 op1bumk+QaV4N8XYOrElP4DKMXvhEXwjxNUxZBnUn+hvwJSwGHuZ1tL07sFpCgR8tC BOuKKLv+w1UFw0MeyqjeUYB6vgCQdOzrE5Fgy0Fc= Date: Wed, 6 Feb 2019 09:42:26 +0100 From: Boris Brezillon To: Martin Kepplinger Cc: , , , , , , , , , Manfred Schlaegl , Fabio Estevam Subject: Re: [PATCH v2] mtd: rawnand: gpmi: fix MX28 bus master lockup problem Message-ID: <20190206094226.1dadbf61@kernel.org> In-Reply-To: <20190205155251.18733-1-martin.kepplinger@ginzinger.com> References: <20190205155251.18733-1-martin.kepplinger@ginzinger.com> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Martin, On Tue, 5 Feb 2019 16:52:51 +0100 Martin Kepplinger wrote: > Disable BCH soft reset according to MX23 erratum #2847 ("BCH soft > reset may cause bus master lock up") for MX28 too. It has the same > problem. >=20 > Observed problem: once per 100,000+ MX28 reboots NAND read failed on > DMA timeout errors: > [ 1.770823] UBI: attaching mtd3 to ubi0 > [ 2.768088] gpmi_nand: DMA timeout, last DMA :1 > [ 3.958087] gpmi_nand: BCH timeout, last DMA :1 > [ 4.156033] gpmi_nand: Error in ECC-based read: -110 > [ 4.161136] UBI warning: ubi_io_read: error -110 while reading 64 > bytes from PEB 0:0, read only 0 bytes, retry > [ 4.171283] step 1 error > [ 4.173846] gpmi_nand: Chip: 0, Error -1 >=20 > Without BCH soft reset we successfully executed 1,000,000 MX28 reboots. >=20 > I have a quote from NXP regarding this problem, from July 18th 2016: >=20 > "As the i.MX23 and i.MX28 are of the same generation, they share many > characteristics. Unfortunately, also the erratas may be shared. > In case of the documented erratas and the workarounds, you can also > apply the workaround solution of one device on the other one. This have > been reported, but I=E2=80=99m afraid that there are not an estimated dat= e for > updating the Errata documents. > Please accept our apologies for any inconveniences this may cause." >=20 > Fixes: 6f2a6a52560a ("mtd: nand: gpmi: reset BCH earlier, too, to avoid > NAND startup problems") Please make sure this Fixes line is not wrapped next time. Thanks, Boris