From patchwork Mon Oct 20 08:46:17 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris BREZILLON X-Patchwork-Id: 5103081 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 [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 6C1A59F65C for ; Mon, 20 Oct 2014 08:50:27 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9C20220154 for ; Mon, 20 Oct 2014 08:50:26 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 87BAD2014A for ; Mon, 20 Oct 2014 08:50:25 +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 1Xg8ch-0000gl-Do; Mon, 20 Oct 2014 08:47:27 +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 1Xg8cK-0000Zr-1b; Mon, 20 Oct 2014 08:47:05 +0000 Received: by mail.free-electrons.com (Postfix, from userid 106) id 6A5C05006; Mon, 20 Oct 2014 10:46:45 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-3.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from localhost.localdomain (col31-4-88-188-83-94.fbx.proxad.net [88.188.83.94]) by mail.free-electrons.com (Postfix) with ESMTPSA id D0AAD4FFE; Mon, 20 Oct 2014 10:46:44 +0200 (CEST) From: Boris Brezillon To: David Woodhouse , Brian Norris , linux-mtd@lists.infradead.org, Huang Shijie Subject: [PATCH v4 4/4] mtd: nand: gpmi: add raw oob access functions Date: Mon, 20 Oct 2014 10:46:17 +0200 Message-Id: <1413794777-32220-5-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1413794777-32220-1-git-send-email-boris.brezillon@free-electrons.com> References: <1413794777-32220-1-git-send-email-boris.brezillon@free-electrons.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141020_014704_267853_17C25822 X-CRM114-Status: UNSURE ( 9.22 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.5 (/) Cc: Mike Voytovich , Boris Brezillon , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Roy Lee X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 Implement raw OOB access functions to retrieve OOB bytes when accessing the NAND in raw mode. Signed-off-by: Boris Brezillon --- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index bd4dedc..d7c483a 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -1473,6 +1473,22 @@ static int gpmi_ecc_write_page_raw(struct mtd_info *mtd, return 0; } +static int gpmi_ecc_read_oob_raw(struct mtd_info *mtd, struct nand_chip *chip, + int page) +{ + chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page); + + return gpmi_ecc_read_page_raw(mtd, chip, NULL, 1, page); +} + +static int gpmi_ecc_write_oob_raw(struct mtd_info *mtd, struct nand_chip *chip, + int page) +{ + chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0, page); + + return gpmi_ecc_write_page_raw(mtd, chip, NULL, 1); +} + static int gpmi_block_markbad(struct mtd_info *mtd, loff_t ofs) { struct nand_chip *chip = mtd->priv; @@ -1792,6 +1808,8 @@ static int gpmi_init_last(struct gpmi_nand_data *this) ecc->write_oob = gpmi_ecc_write_oob; ecc->read_page_raw = gpmi_ecc_read_page_raw; ecc->write_page_raw = gpmi_ecc_write_page_raw; + ecc->read_oob_raw = gpmi_ecc_read_oob_raw; + ecc->write_oob_raw = gpmi_ecc_write_oob_raw; ecc->mode = NAND_ECC_HW; ecc->size = bch_geo->ecc_chunk_size; ecc->strength = bch_geo->ecc_strength;