From: Peter Rosin <peda@axentia.se> To: Boris Brezillon <boris.brezillon@bootlin.com> Cc: Nicolas Ferre <nicolas.ferre@microchip.com>, Alexandre Belloni <alexandre.belloni@bootlin.com>, Richard Weinberger <richard@nod.at>, Josh Wu <rainyfeeling@outlook.com>, linux-kernel@vger.kernel.org, Marek Vasut <marek.vasut@gmail.com>, linux-mtd@lists.infradead.org, Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>, Brian Norris <computersforpeace@gmail.com>, David Woodhouse <dwmw2@infradead.org>, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH] mtd: nand: raw: atmel: add module param to avoid using dma Date: Wed, 11 Apr 2018 17:10:43 +0200 [thread overview] Message-ID: <bb64d0b1-bb3a-06b0-9e90-0caf7531f3c5@axentia.se> (raw) In-Reply-To: <20180411165925.2be0d45b@bbrezillon> On 2018-04-11 16:59, Boris Brezillon wrote: > On Wed, 11 Apr 2018 16:44:10 +0200 > Peter Rosin <peda@axentia.se> wrote: > >> Hi Nicolas, >> >> Boris asked for your input on this (the datasheet difference appears to >> have no bearing on the issue) elsewhere in the tree of messages. It's >> now been a week or so and I'm starting to wonder if you missed this >> altogether or if you are simply out of office or something? > > I was wondering if you had given up on this problem, it seems you did > not. I have my local patch to disable dma for the flash, but local patches are always a disappointment. > Did you try forcing the HLCDC to use the 2nd interface (ahb_id=1) > instead of the first one? Just tried, and it's better that way, but the problem still exist and is very visible on some (but apparently not all) flash accesses. Cheers, Peter
WARNING: multiple messages have this Message-ID (diff)
From: peda@axentia.se (Peter Rosin) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH] mtd: nand: raw: atmel: add module param to avoid using dma Date: Wed, 11 Apr 2018 17:10:43 +0200 [thread overview] Message-ID: <bb64d0b1-bb3a-06b0-9e90-0caf7531f3c5@axentia.se> (raw) In-Reply-To: <20180411165925.2be0d45b@bbrezillon> On 2018-04-11 16:59, Boris Brezillon wrote: > On Wed, 11 Apr 2018 16:44:10 +0200 > Peter Rosin <peda@axentia.se> wrote: > >> Hi Nicolas, >> >> Boris asked for your input on this (the datasheet difference appears to >> have no bearing on the issue) elsewhere in the tree of messages. It's >> now been a week or so and I'm starting to wonder if you missed this >> altogether or if you are simply out of office or something? > > I was wondering if you had given up on this problem, it seems you did > not. I have my local patch to disable dma for the flash, but local patches are always a disappointment. > Did you try forcing the HLCDC to use the 2nd interface (ahb_id=1) > instead of the first one? Just tried, and it's better that way, but the problem still exist and is very visible on some (but apparently not all) flash accesses. Cheers, Peter
next prev parent reply other threads:[~2018-04-11 15:10 UTC|newest] Thread overview: 117+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-03-29 13:10 [PATCH] mtd: nand: raw: atmel: add module param to avoid using dma Peter Rosin 2018-03-29 13:10 ` Peter Rosin 2018-03-29 13:33 ` Boris Brezillon 2018-03-29 13:33 ` Boris Brezillon 2018-03-29 13:37 ` Peter Rosin 2018-03-29 13:37 ` Peter Rosin 2018-03-29 13:44 ` Boris Brezillon 2018-03-29 13:44 ` Boris Brezillon 2018-03-29 14:27 ` Peter Rosin 2018-03-29 14:27 ` Peter Rosin 2018-03-30 21:43 ` Peter Rosin 2018-03-30 21:43 ` Peter Rosin 2018-04-02 12:22 ` Boris Brezillon 2018-04-02 12:22 ` Boris Brezillon 2018-04-02 17:59 ` Peter Rosin 2018-04-02 17:59 ` Peter Rosin 2018-04-02 19:28 ` Boris Brezillon 2018-04-02 19:28 ` Boris Brezillon 2018-04-02 20:20 ` Boris Brezillon 2018-04-02 20:20 ` Boris Brezillon 2018-04-02 20:32 ` Boris Brezillon 2018-04-02 20:32 ` Boris Brezillon 2018-04-03 6:11 ` Peter Rosin 2018-04-03 6:11 ` Peter Rosin 2018-04-03 7:18 ` Boris Brezillon 2018-04-03 7:18 ` Boris Brezillon 2018-04-11 14:44 ` Peter Rosin 2018-04-11 14:44 ` Peter Rosin 2018-04-11 14:59 ` Boris Brezillon 2018-04-11 14:59 ` Boris Brezillon 2018-04-11 15:10 ` Peter Rosin [this message] 2018-04-11 15:10 ` Peter Rosin 2018-04-11 15:34 ` Boris Brezillon 2018-04-11 15:34 ` Boris Brezillon 2018-04-11 15:34 ` Nicolas Ferre 2018-04-11 15:34 ` Nicolas Ferre 2018-04-12 7:18 ` Peter Rosin 2018-04-12 7:18 ` Peter Rosin 2018-05-22 18:03 ` Peter Rosin 2018-05-22 18:03 ` Peter Rosin 2018-05-23 10:42 ` Boris Brezillon 2018-05-23 10:42 ` Boris Brezillon 2018-05-25 14:51 ` Tudor Ambarus 2018-05-25 14:51 ` Tudor Ambarus 2018-05-26 17:40 ` Peter Rosin 2018-05-26 17:40 ` Peter Rosin 2018-05-27 9:18 ` Peter Rosin 2018-05-27 9:18 ` Peter Rosin 2018-05-27 22:11 ` Peter Rosin 2018-05-27 22:11 ` Peter Rosin 2018-05-28 10:10 ` Peter Rosin 2018-05-28 10:10 ` Peter Rosin 2018-05-28 14:27 ` Boris Brezillon 2018-05-28 14:27 ` Boris Brezillon 2018-05-28 15:52 ` Peter Rosin 2018-05-28 15:52 ` Peter Rosin 2018-05-28 16:09 ` Boris Brezillon 2018-05-28 16:09 ` Boris Brezillon 2018-05-28 16:09 ` Nicolas Ferre 2018-05-28 16:09 ` Nicolas Ferre 2018-05-29 6:30 ` Eugen Hristev 2018-05-29 6:30 ` Eugen Hristev 2018-05-29 7:10 ` Peter Rosin 2018-05-29 7:10 ` Peter Rosin 2018-05-29 7:25 ` Eugen Hristev 2018-05-29 7:25 ` Eugen Hristev 2018-05-29 14:49 ` Boris Brezillon 2018-05-29 14:49 ` Boris Brezillon 2018-05-29 15:01 ` Eugen Hristev 2018-05-29 15:01 ` Eugen Hristev 2018-05-29 15:15 ` Boris Brezillon 2018-05-29 15:15 ` Boris Brezillon 2018-05-29 15:21 ` Eugen Hristev 2018-05-29 15:21 ` Eugen Hristev 2018-05-29 15:46 ` Boris Brezillon 2018-05-29 15:46 ` Boris Brezillon 2018-05-29 17:57 ` Boris Brezillon 2018-05-29 17:57 ` Boris Brezillon 2018-05-29 21:37 ` Peter Rosin 2018-05-29 21:37 ` Peter Rosin 2018-06-04 15:46 ` Tudor Ambarus 2018-06-04 15:46 ` Tudor Ambarus 2018-06-04 16:03 ` Boris Brezillon 2018-06-04 16:03 ` Boris Brezillon 2022-06-16 15:54 ` SAMA5D3 Display FIFO underflow (Was: Re: [PATCH] mtd: nand: raw: atmel: add module param to avoid using dma) Ahmad Fatoum 2022-07-25 14:17 ` Ahmad Fatoum 2022-07-28 8:03 ` Tudor.Ambarus 2018-04-03 6:51 ` [PATCH] mtd: nand: raw: atmel: add module param to avoid using dma Peter Rosin 2018-04-03 6:51 ` Peter Rosin 2018-04-03 7:15 ` Boris Brezillon 2018-04-03 7:15 ` Boris Brezillon 2018-04-03 7:32 ` Boris Brezillon 2018-04-03 7:32 ` Boris Brezillon 2018-04-03 8:14 ` Peter Rosin 2018-04-03 8:14 ` Peter Rosin 2018-04-03 8:30 ` Boris Brezillon 2018-04-03 8:30 ` Boris Brezillon 2018-04-02 20:23 ` Peter Rosin 2018-04-02 20:23 ` Peter Rosin 2018-04-02 20:35 ` Boris Brezillon 2018-04-02 20:35 ` Boris Brezillon 2018-04-03 7:18 ` Alexandre Belloni 2018-04-03 7:18 ` Alexandre Belloni 2018-04-03 8:37 ` Peter Rosin 2018-04-03 8:37 ` Peter Rosin 2018-03-29 14:20 ` Nicolas Ferre 2018-03-29 14:20 ` Nicolas Ferre 2018-03-29 14:23 ` Peter Rosin 2018-03-29 14:23 ` Peter Rosin 2018-03-29 14:29 ` Boris Brezillon 2018-03-29 14:29 ` Boris Brezillon 2018-06-18 8:39 ` Boris Brezillon 2018-06-18 8:39 ` Boris Brezillon 2018-06-18 14:00 ` Miquel Raynal 2018-06-18 14:00 ` Miquel Raynal 2018-06-25 12:31 ` Miquel Raynal 2018-06-25 12:31 ` Miquel Raynal
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