command bootu to start kernel

Belisko Marek marek.belisko at gmail.com
Fri Oct 29 05:31:53 EDT 2010


On Fri, Oct 29, 2010 at 11:26 AM, Marc Kleine-Budde <mkl at pengutronix.de> wrote:
> On 10/29/2010 11:21 AM, Belisko Marek wrote:
>>>>> do you have a "MEM=32" on your command line?
>>>> Well I add it but same result:
>>>
>>> BTW: It must be "mem=", in lowercase, but you did this.
>>>
>>> What I was meant to ask was, if you forget to add the "M" to "32".
>>> Because with mem=32 you tell Linux just to use 32 bytes of memory. Maybe
>>> your ATAGs are broken, Linux might not see the whole RAM or any if it.
>
>> yes it was typo I forgot put M after 32. Kernel now properly boot :).
>
> How much RAM you you have? Adjust mem= accordingly.
Have 64M I will adjust.
>
>> U-boot somehow
>> add kernel this parameter? Because for u-boot I don't need to set this
>> parameter.
>
> Nope - u-boot and barebox set up this information in the ATAG list.
> Seems something is broken with your ATAG list.
Could be a problem thats I load barebox directly to ram and run it and
then RAM size isn't probed
and correctly set in atags?
>
> cheers, Marc
>
> --
> Pengutronix e.K.                  | Marc Kleine-Budde           |
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>
>

marek

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