Re: IMX23 usb instability on 3.9-rc5

[Fabio Estevam]

Alexandre,

On Sat, Apr 6, 2013 at 4:39 PM, Alexandre Pereira da Silva
<aletes.xgr@xxxxxxxxx> wrote:
> Hello,
>
> I am testing a usb key connected on a IMX23-Olinuxino board. The
> kernel panics at heavy usb trafic. This was build with the mxs
> defconfig
>
> This happens everytime with "dd if=/dev/sda of=/dev/null bs=4k". The
> messages of the failure varies a lot from run to run.

Maybe bad DDR initialization? Are using U-boot or bootlets to setup the DDR?

What is your DDR frequency: 133 or 96MHz? I saw some posts in the
olimex forum that people had to run it at 96MHz to get stable
operation.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/