From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Brezillon Subject: Re: [PATCH RFC 18/18] mtd: spi-nor: Make sure the 8D-8D-8D can be selected on mx25uw51245g Date: Mon, 14 Jan 2019 09:39:54 +0100 Message-ID: <20190114093954.0e0b0c07@bbrezillon> References: <20181012084825.23697-1-boris.brezillon@bootlin.com> <20181012084825.23697-19-boris.brezillon@bootlin.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Yogesh Gaur , Vignesh R , Marek Vasut , Julien Su , Richard Weinberger , linux-spi@vger.kernel.org, Boris Brezillon , Mark Brown , linux-mtd@lists.infradead.org, Cyrille Pitchen , Brian Norris , David Woodhouse , zhengxunli@mxic.com.tw To: masonccyang@mxic.com.tw Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+gldm-linux-mtd-36=gmane.org@lists.infradead.org List-Id: linux-spi.vger.kernel.org On Mon, 14 Jan 2019 15:30:29 +0800 masonccyang@mxic.com.tw wrote: > Hi Boris, > > I have patched direct mapping in spi-nor.c layer based on > your direct mapping mode's patch [1][2] as attached file, > spi-nor-mxic.patch. > > > > > The read performance has got much improvement in direct mapping > read mode w/ 8D-8D-8D DDR@25MHz compare to manual I/O mode. > i.e,. > 62.8 KB/s(manual I/O) is up to 21.8 MB/s(direct mapping read). > > Looking forward to this direct mapping mode would be merged to mainline > soon. > > thanks & best regards, > Mason > > [1] https://patchwork.kernel.org/patch/10670753 > [2] https://patchwork.kernel.org/patch/10670747 Those 2 patches have been applied already, we only miss [3] which I plan to queue for v5.1. [3]http://patchwork.ozlabs.org/patch/993805/ ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/