From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from a.ns.miles-group.at ([95.130.255.143] helo=radon.swed.at) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1aoUyJ-0004Ra-O8 for linux-mtd@lists.infradead.org; Fri, 08 Apr 2016 11:53:08 +0000 Subject: Re: [PATCH V2 4/7] mtd: nand: add Loongson1 NAND driver To: Keguang Zhang , linux-mips@linux-mips.org, linux-clk@vger.kernel.org, linux-pm@vger.kernel.org, dmaengine@vger.kernel.org, linux-gpio@vger.kernel.org, linux-mtd@lists.infradead.org References: <1460115779-13141-1-git-send-email-keguang.zhang@gmail.com> <1460115779-13141-4-git-send-email-keguang.zhang@gmail.com> Cc: Ralf Baechle , Michael Turquette , Stephen Boyd , "Rafael J. Wysocki" , Viresh Kumar , Vinod Koul , Dan Williams , Linus Walleij , Alexandre Courbot , Boris Brezillon , David Woodhouse , Brian Norris From: Richard Weinberger Message-ID: <57079B87.9030209@nod.at> Date: Fri, 8 Apr 2016 13:52:39 +0200 MIME-Version: 1.0 In-Reply-To: <1460115779-13141-4-git-send-email-keguang.zhang@gmail.com> Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: 7bit List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Am 08.04.2016 um 13:42 schrieb Keguang Zhang: > + chip->options = NAND_NO_SUBPAGE_WRITE; > + chip->ecc.mode = NAND_ECC_SOFT; Is the lack of HW ECC and subpage write a hardware limitation? Thanks, //richard