From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: <barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org> Received: from smtp.eu1.fugro.com ([46.34.88.151]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WJNl2-0004S7-Em for barebox@lists.infradead.org; Fri, 28 Feb 2014 13:45:45 +0000 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Fri, 28 Feb 2014 14:45:18 +0100 Message-ID: <C89EFD3CD56F64468D3D206D683A8D22030421B4@ldam-msx2.fugro-nl.local> From: "Hattink, Tjalling [FINT]" <T.Hattink@fugro.nl> List-Id: <barebox.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/barebox>, <mailto:barebox-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/barebox/> List-Post: <mailto:barebox@lists.infradead.org> List-Help: <mailto:barebox-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/barebox>, <mailto:barebox-request@lists.infradead.org?subject=subscribe> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" <barebox-bounces@lists.infradead.org> Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH] mtd: nand: Enable read_subpage functionality To: barebox@lists.infradead.org The default nand_read_subpage implementation returns -ENOSUPP, so if you use a large nand chip without a specific read_subpage implementation the read operations will always fail. The return -ENOSUPP line is removed and the original implementation of nand_read_subpage is restored (as used in the linux kernel). This allows large nand chips to be used safely with automatic subpaging support. Signed-off-by: Tjalling Hattink <t.hattink@fugro.nl> --- drivers/mtd/nand/nand_base.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 54d8ba3..8c4203e 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1036,11 +1036,6 @@ static __maybe_unused int nand_read_subpage(struct mtd_info *mtd, int index = 0; unsigned int max_bitflips = 0; - /* - * Currently we have no users in barebox, so disable this for now - */ - return -ENOTSUPP; - /* Column address within the page aligned to ECC size (256bytes) */ start_step = data_offs / chip->ecc.size; end_step = (data_offs + readlen - 1) / chip->ecc.size; -- 1.8.3.2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox