[U-Boot] [PATCH v4 1/2] vf610twr: Add default environment in line with other Freescale boards

Fabio Estevam festevam at gmail.com
Fri Jun 28 14:49:32 CEST 2013


On Fri, Jun 28, 2013 at 9:48 AM, Andy Voltz <andy.voltz at timesys.com> wrote:
> Hi Fabio,
>
> On Thu, Jun 27, 2013 at 10:14:40PM -0400, Fabio Estevam wrote:
>> On Thu, Jun 27, 2013 at 11:12 PM, Otavio Salvador
>> <otavio at ossystems.com.br> wrote:
>>
>> >> Just curious: why do we need to pass mem=128M?
>> >
>> > Board fails to boot otherwise ... Andy did try it so he can explain it
>> > with more detail.
>>
>> Hmm...Is DDR being incorrectly configured then? We need to understand
>> why this happens.
>>
>> Andy, can you comment on this, please?
>
> I haven't looked closely at the memory setup, but you are likely correct.
>
> When I boot our kernel on twr-vf610 without mem, nothing is seen after
> 'Starting kernel...'
>
> For comparison I booted linux-next on the twr-vf610 without the mem argument,
> and it works. I haven't gotten the board to mount an RFS over net or mmc, but I
> suspect that is a kernel configuration problem.
>
> It probably makes the most sense to just drop mem arg from the environment, and
> then we can patch our kernel to fix the memory setup issue.


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