From patchwork Mon Mar 7 09:46:59 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris BREZILLON X-Patchwork-Id: 8518081 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 874649F38C for ; Mon, 7 Mar 2016 10:09:26 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9C1B120138 for ; Mon, 7 Mar 2016 10:09:25 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B401A200E7 for ; Mon, 7 Mar 2016 10:09:24 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1acs5J-0003Ql-0C; Mon, 07 Mar 2016 10:08:17 +0000 Received: from down.free-electrons.com ([37.187.137.238] helo=mail.free-electrons.com) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1acrmA-0006ER-4r; Mon, 07 Mar 2016 09:48:41 +0000 Received: by mail.free-electrons.com (Postfix, from userid 110) id 00A2742; Mon, 7 Mar 2016 10:48:08 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from localhost.localdomain (AToulouse-657-1-1129-172.w92-156.abo.wanadoo.fr [92.156.51.172]) by mail.free-electrons.com (Postfix) with ESMTPSA id BF3964AF; Mon, 7 Mar 2016 10:47:54 +0100 (CET) From: Boris Brezillon To: David Woodhouse , Brian Norris , linux-mtd@lists.infradead.org Subject: [PATCH v4 09/52] mtd: nand: fsl_ifc: use mtd_ooblayout_xxx() helpers where appropriate Date: Mon, 7 Mar 2016 10:46:59 +0100 Message-Id: <1457344062-11633-10-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1457344062-11633-1-git-send-email-boris.brezillon@free-electrons.com> References: <1457344062-11633-1-git-send-email-boris.brezillon@free-electrons.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160307_014830_819606_CBFBC8CD X-CRM114-Status: GOOD ( 17.23 ) X-Spam-Score: -1.9 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-mips@linux-mips.org, Krzysztof Kozlowski , Harvey Hunt , Nicolas Ferre , Stefan Agner , linux-sunxi@googlegroups.com, Alexandre Belloni , punnaiah choudary kalluri , Robert Jarzmik , devel@driverdev.osuosl.org, Boris Brezillon , linux-samsung-soc@vger.kernel.org, Kamal Dasu , Josh Wu , Chen-Yu Tsai , Kukjin Kim , bcm-kernel-feedback-list@broadcom.com, Ezequiel Garcia , Jean-Christophe Plagniol-Villard , Haojian Zhuang , linux-arm-kernel@lists.infradead.org, Priit Laes , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, Ralf Baechle , Wenyou Yang , Kyungmin Park , linux-api@vger.kernel.org, Maxime Ripard , Daniel Mack MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The mtd_ooblayout_xxx() helper functions have been added to avoid direct accesses to the ecclayout field, and thus ease for future reworks. Use these helpers in all places where the oobfree[] and eccpos[] arrays where directly accessed. Signed-off-by: Boris Brezillon --- drivers/mtd/nand/fsl_ifc_nand.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c index 43f5a3a..2e970ac 100644 --- a/drivers/mtd/nand/fsl_ifc_nand.c +++ b/drivers/mtd/nand/fsl_ifc_nand.c @@ -257,18 +257,22 @@ static int is_blank(struct mtd_info *mtd, unsigned int bufnum) u8 __iomem *addr = priv->vbase + bufnum * (mtd->writesize * 2); u32 __iomem *mainarea = (u32 __iomem *)addr; u8 __iomem *oob = addr + mtd->writesize; - int i; + struct mtd_oob_region oobregion = { }; + int i, section = 0; for (i = 0; i < mtd->writesize / 4; i++) { if (__raw_readl(&mainarea[i]) != 0xffffffff) return 0; } - for (i = 0; i < chip->ecc.layout->eccbytes; i++) { - int pos = chip->ecc.layout->eccpos[i]; + mtd_ooblayout_ecc(mtd, section++, &oobregion); + while (oobregion.length) { + for (i = 0; i < oobregion.length; i++) { + if (__raw_readb(&oob[oobregion.offset + i]) != 0xff) + return 0; + } - if (__raw_readb(&oob[pos]) != 0xff) - return 0; + mtd_ooblayout_ecc(mtd, section++, &oobregion); } return 1;