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From: Marek Vasut <marex@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] net: fec: Avoid MX28 bus sync issue
Date: Fri, 12 Jul 2013 05:51:38 +0200	[thread overview]
Message-ID: <201307120551.39019.marex@denx.de> (raw)
In-Reply-To: <CAAAP30F6=KuNZUV6xMpOf_4vdsj0jbqTzFzg78J4hFMp0z0n3w@mail.gmail.com>

Hi,

> On Thu, Jul 11, 2013 at 8:18 PM, Fabio Estevam <festevam@gmail.com> wrote:
> > On Thu, Jul 11, 2013 at 8:03 PM, Marek Vasut <marex@denx.de> wrote:
> >> The MX28 multi-layer AHB bus can be too slow and trigger the
> >> FEC DMA too early, before all the data hit the DRAM. This patch
> >> ensures the data are written in the RAM before the DMA starts.
> >> Please see the comment in the patch for full details.
> >> 
> >> This patch was produced with an amazing help from Albert Aribaud,
> >> who pointed out it can possibly be such a bus synchronisation
> >> issue.
> >> 
> >> Signed-off-by: Marek Vasut <marex@denx.de>
> >> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
> >> Cc: Fabio Estevam <fabio.estevam@freescale.com>
> >> Cc: Stefano Babic <sbabic@denx.de>
> > 
> > Excellent, managed to transfer 90MB via TFTP on mx28evk without a
> > single timeout.
> > 
> > Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
> 
> It's working here too.
> 
> Tested-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>

Nice to hear, thank Albert for finding this.

Best regards,
Marek Vasut

  reply	other threads:[~2013-07-12  3:51 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-11 23:03 [U-Boot] [PATCH] net: fec: Avoid MX28 bus sync issue Marek Vasut
2013-07-11 23:18 ` Fabio Estevam
2013-07-12  3:41   ` Alexandre Pereira da Silva
2013-07-12  3:51     ` Marek Vasut [this message]
2013-07-12 11:37       ` Hector Palacios
2013-07-12 11:39         ` Fabio Estevam
2013-07-12 12:01         ` Marek Vasut
2013-07-12 15:08           ` Hector Palacios
2013-07-12 15:50             ` Albert ARIBAUD
2013-07-12 16:48             ` Marek Vasut
2013-07-15  8:58               ` Hector Palacios
2013-07-15 12:30                 ` Marek Vasut
2013-07-15 15:09                   ` Hector Palacios
2013-07-15 15:12                     ` Marek Vasut
2013-07-15 15:24                       ` Hector Palacios
2013-07-16  3:51                     ` Fabio Estevam
2013-07-16  4:18                       ` Fabio Estevam
2013-07-16  4:44                         ` Marek Vasut
2013-07-17 15:55                           ` Hector Palacios
2013-07-18  4:12                             ` Marek Vasut
2013-09-12 10:22                             ` Hector Palacios
2013-09-12 10:50                               ` Marek Vasut
     [not found]                                 ` <52319DE8.5080607@digi.com>
2013-09-12 11:00                                   ` Marek Vasut
2013-09-12 11:02                                 ` Robert Hodaszi
2013-09-12 14:05                                   ` Marek Vasut
2013-09-12 14:15                                     ` Robert Hodaszi
2013-09-12 14:31                                       ` Marek Vasut
2013-09-12 14:32                                         ` Robert Hodaszi
2013-09-12 15:06                                           ` Marek Vasut
2013-09-12 18:17                                     ` Wolfgang Denk
2013-09-12 18:39                                       ` Fabio Estevam
2013-09-12 18:53                                         ` Wolfgang Denk
2013-09-12 19:37                                           ` Fabio Estevam
2013-09-13 11:11                                             ` Robert Hodaszi
2013-09-13 11:13                                               ` Robert Hodaszi
2013-09-13 14:01                                                 ` Marek Vasut
2013-09-13 14:24                                                   ` Robert Hodaszi
2013-09-13 16:06                                               ` Wolfgang Denk
2013-09-13 16:24                                                 ` Marek Vasut
2013-09-13 17:46                                                   ` Wolfgang Denk
2013-09-14 22:05                                                     ` Fabio Estevam
2013-09-12 11:08                                 ` Robert Hodaszi
2013-09-12 18:12                                   ` Wolfgang Denk
2013-09-12 17:50                               ` Wolfgang Denk
2013-07-13  2:43   ` Troy Kisky
2013-07-15 13:41     ` Albert ARIBAUD
2013-07-15 17:39       ` Troy Kisky
2013-07-15 19:59         ` Troy Kisky
2013-07-15 20:20           ` Albert ARIBAUD
2013-07-15 20:20         ` Albert ARIBAUD
2013-07-15 21:18           ` Troy Kisky
2013-07-12  5:57 ` Albert ARIBAUD
2013-07-12  6:39   ` Albert ARIBAUD
2013-07-12 11:51     ` Marek Vasut
2013-07-12  6:56   ` Stefano Babic
2013-07-12  7:30 ` Stefano Babic
2013-09-15 18:12 Oliver Metz
2013-09-15 18:16 ` Fabio Estevam

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