From patchwork Sun Jul 1 10:09:48 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 937534 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Gc8+EGYF"; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 41JRBB5QR1z9s2g for ; Sun, 1 Jul 2018 20:16:34 +1000 (AEST) 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:From:To: Subject:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=shfWTJeO/U+ldVevdLEotKuDmr8OiQUk7mTIYgan5Pw=; b=Gc8+EGYFxl3RvZ bQYXwgT0jpKedfIoFpSOxV1YyVxyjiIDTAzgL1d04iQW5B4EaUnvm/y9DfV2fLoGFM8S6wZUgKcFJ b/wq4qIu34GYDphXT5frN1BblsOe0CJqozN4vuZcL+Ly7D1J6hGa9+ztCkVVr27l1hRVoxaQcjISb FC5EXT6p7GpcKT0IyvdeT3YeU0/MwmG7xRXozKrpmbbp3tuacvSTQb1lXyXauXZJCRo1eWUdKJiVw 0R5jOcaJDD8pmZTo0vYEI1nuPe2xdeWuJ+MMDKLO50rHRCsXzoWa2xWg6wTdo3xAuzNfs7EyKQ/Ae xdKqgCxnWKXaHQvP5kqg==; 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 1fZZPB-0003J6-CE; Sun, 01 Jul 2018 10:16:29 +0000 Received: from mail.linuxfoundation.org ([140.211.169.12]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fZZOs-000371-UB for linux-mtd@lists.infradead.org; Sun, 01 Jul 2018 10:16:13 +0000 Received: from localhost (LFbn-1-12247-202.w90-92.abo.wanadoo.fr [90.92.61.202]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 134C7C0C; Sun, 1 Jul 2018 10:15:59 +0000 (UTC) Subject: Patch "mtd: cfi_cmdset_0002: Change erase functions to retry for error" has been added to the 4.4-stable tree To: Joakim.Tjernlund@infinera.com, boris.brezillon@bootlin.com, boris.brezillon@free-electrons.com, chris.packham@alliedtelesis.co.nz, computersforpeace@gmail.com, cyrille.pitchen@wedev4u.fr, dwmw2@infradead.org, gregkh@linuxfoundation.org, ikegami@allied-telesis.co.jp, linux-mtd@lists.infradead.org, marek.vasut@gmail.com, richard@nod.at From: Date: Sun, 01 Jul 2018 12:09:48 +0200 Message-ID: <1530439788226249@kroah.com> MIME-Version: 1.0 X-stable: commit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180701_031611_076575_A021F9FD X-CRM114-Status: GOOD ( 16.07 ) X-Spam-Score: 0.2 (/) X-Spam-Report: SpamAssassin version 3.4.1 on bombadil.infradead.org summary: Content analysis details: (0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [140.211.169.12 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record 2.5 SORTED_RECIPS Recipient list is sorted by address -0.0 SPF_PASS SPF: sender matches SPF record 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: stable-commits@vger.kernel.org Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org This is a note to let you know that I've just added the patch titled mtd: cfi_cmdset_0002: Change erase functions to retry for error to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mtd-cfi_cmdset_0002-change-erase-functions-to-retry-for-error.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. From 45f75b8a919a4255f52df454f1ffdee0e42443b2 Mon Sep 17 00:00:00 2001 From: Tokunori Ikegami Date: Wed, 30 May 2018 18:32:28 +0900 Subject: mtd: cfi_cmdset_0002: Change erase functions to retry for error From: Tokunori Ikegami commit 45f75b8a919a4255f52df454f1ffdee0e42443b2 upstream. For the word write functions it is retried for error. But it is not implemented to retry for the erase functions. To make sure for the erase functions change to retry as same. This is needed to prevent the flash erase error caused only once. It was caused by the error case of chip_good() in the do_erase_oneblock(). Also it was confirmed on the MACRONIX flash device MX29GL512FHT2I-11G. But the error issue behavior is not able to reproduce at this moment. The flash controller is parallel Flash interface integrated on BCM53003. Signed-off-by: Tokunori Ikegami Reviewed-by: Joakim Tjernlund Cc: Chris Packham Cc: Brian Norris Cc: David Woodhouse Cc: Boris Brezillon Cc: Marek Vasut Cc: Richard Weinberger Cc: Cyrille Pitchen Cc: linux-mtd@lists.infradead.org Cc: stable@vger.kernel.org Signed-off-by: Boris Brezillon Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/chips/cfi_cmdset_0002.c | 10 ++++++++++ 1 file changed, 10 insertions(+) Patches currently in stable-queue which might be from ikegami@allied-telesis.co.jp are queue-4.4/mtd-cfi_cmdset_0002-change-erase-functions-to-retry-for-error.patch queue-4.4/mtd-cfi_cmdset_0002-change-write-buffer-to-check-correct-value.patch queue-4.4/mips-bcm47xx-enable-74k-core-externalsync-for-pcie-erratum.patch --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -2239,6 +2239,7 @@ static int __xipram do_erase_chip(struct unsigned long int adr; DECLARE_WAITQUEUE(wait, current); int ret = 0; + int retry_cnt = 0; adr = cfi->addr_unlock1; @@ -2256,6 +2257,7 @@ static int __xipram do_erase_chip(struct ENABLE_VPP(map); xip_disable(map, chip, adr); + retry: cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL); cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, cfi->device_type, NULL); cfi_send_gen_cmd(0x80, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL); @@ -2310,6 +2312,9 @@ static int __xipram do_erase_chip(struct map_write( map, CMD(0xF0), chip->start ); /* FIXME - should have reset delay before continuing */ + if (++retry_cnt <= MAX_RETRIES) + goto retry; + ret = -EIO; } @@ -2329,6 +2334,7 @@ static int __xipram do_erase_oneblock(st unsigned long timeo = jiffies + HZ; DECLARE_WAITQUEUE(wait, current); int ret = 0; + int retry_cnt = 0; adr += chip->start; @@ -2346,6 +2352,7 @@ static int __xipram do_erase_oneblock(st ENABLE_VPP(map); xip_disable(map, chip, adr); + retry: cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL); cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, cfi->device_type, NULL); cfi_send_gen_cmd(0x80, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL); @@ -2403,6 +2410,9 @@ static int __xipram do_erase_oneblock(st map_write( map, CMD(0xF0), chip->start ); /* FIXME - should have reset delay before continuing */ + if (++retry_cnt <= MAX_RETRIES) + goto retry; + ret = -EIO; }