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Wed, 27 Jan 2021 19:50:37 +0000 Received: from relay5-d.mail.gandi.net ([217.70.183.197]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l4qpk-0004nP-N7 for linux-mtd@lists.infradead.org; Wed, 27 Jan 2021 19:50:33 +0000 X-Originating-IP: 86.210.203.150 Received: from xps13 (lfbn-tou-1-972-150.w86-210.abo.wanadoo.fr [86.210.203.150]) (Authenticated sender: miquel.raynal@bootlin.com) by relay5-d.mail.gandi.net (Postfix) with ESMTPSA id C3EAE1C0004; Wed, 27 Jan 2021 19:50:26 +0000 (UTC) Date: Wed, 27 Jan 2021 20:50:25 +0100 From: Miquel Raynal To: Michael Nazzareno Trimarchi Subject: Re: FIX Re: GPMI IMX6ull timeout on dma Message-ID: <20210127205025.14ce73a4@xps13> In-Reply-To: References: <20181029104057.30428a2a@xps13> <20181029105312.1a62628c@xps13> <20210127201225.68209646@xps13> Organization: Bootlin X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210127_145033_076846_510D8583 X-CRM114-Status: GOOD ( 30.72 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Han Xu , linux-mtd@lists.infradead.org, Boris Brezillon Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org Hi Michael, Michael Nazzareno Trimarchi wrote on Wed, 27 Jan 2021 20:43:15 +0100: > Hi > > On Wed, Jan 27, 2021 at 8:12 PM Miquel Raynal wrote: > > > > Hi Michael, > > > > Michael Nazzareno Trimarchi wrote on > > Wed, 27 Jan 2021 18:01:01 +0100: > > > > > Hi all > > > > > > On Mon, Oct 29, 2018 at 10:53 AM Miquel Raynal > > > wrote: > > > > > > > > Hi Michael, > > > > > > > > Michael Nazzareno Trimarchi wrote on > > > > Mon, 29 Oct 2018 10:43:05 +0100: > > > > > > > > > Hi > > > > > > > > > > On Mon, Oct 29, 2018 at 10:41 AM Miquel Raynal > > > > > wrote: > > > > > > > > > > > > Hi Michael, > > > > > > > > > > > > Michael Nazzareno Trimarchi wrote on > > > > > > Fri, 5 Oct 2018 12:32:18 +0200: > > > > > > > > > > > > > Hi Boris > > > > > > > > > > > > > > I have reverted for now > > > > > > > > > > > > > > Revert "mtd: rawnand: gpmi: support ->setup_data_interface()" > > > > > > > This reverts commit 76e1a0086a0c3276b384f77905345e0fcc886fdd. > > > > > > > > > > > > > > Revert "mtd: rawnand: gpmi: use core timings instead of an empirical > > > > > > > derivation" > > > > > > > This reverts commit b1206122069aadabe1a8c50789277a978aaa4df7. > > > > > > > > > > > > Sorry for the delay, I've been very busy lately. > > > > > > > > > > > > Please also Cc: me in your e-mails to the MTD ML. > > > > > > > > > > > > AFAIR I'm the author of these patches so I would like to understand and > > > > > > fix what's wrong there. As a start, can you discriminate which patch > > > > > > actually makes the timings inconsistent? Are you ready to do more > > > > > > testing to find what's wrong? > > > > > > > > > > Yes it's on my plan. Now for field I need to revert them but I have > > > > > them in roadmap. > > > > > We are testing now an imx6dl. It can be a combination with the micron > > > > > part number too. > > > > > > > > Sure, let us know about your discoveries, I really want the GPMI driver > > > > to use core timings and ->setup_data_interface() so if there is > > > > something wrong there it should be fixed. > > > > > > > > > > Need to move on lts kernel and I have time to work and I must work on > > > this topic. I don't see any update but > > > another report. Is this supposed to be fixed? > > > > Not at all, this hasn't moved forward. > > > > Try to reproduce on a 4.19.y version stable branch. > There was some difference on register values I have seen last time, did you > get time to check them? If you now have time to investigate the differences it would be great. I can perhaps help you to try understand the meaning of the differences if you give me precise information. ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/