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Date:      Fri, 01 Jun 2007 16:16:37 +0300
From:      Krassimir Slavchev <krassi@bulinfo.net>
To:        =?ISO-8859-1?Q?Bj=F6rn_K=F6nig?= <bkoenig@alpha-tierchen.de>
Cc:        freebsd-arm@freebsd.org
Subject:   Re: Execution stops while enabling MMU
Message-ID:  <46601C35.9010301@bulinfo.net>
In-Reply-To: <49611.2001:6f8:101e:0:20e:cff:fe6d:6adb.1180702019.squirrel@webmail.alpha-tierchen.de>
References:  <62776.2001:6f8:101e:0:20e:cff:fe6d:6adb.1180696310.squirrel@webmail.alpha-tierchen.de> <46600799.7000705@bulinfo.net> <49611.2001:6f8:101e:0:20e:cff:fe6d:6adb.1180702019.squirrel@webmail.alpha-tierchen.de>

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Björn König wrote:
> Krassimir schrieb:
>   
>> Make sure that you are configured the RAM memory properly.
>>     
>
> I'm not sure, maybe I got you wrong, but I think that there is no special
> configuration necessary. Actually some simple test programs work without
> problems, i.e. I can toggle LEDs and write to resp. read from serial
> ports. These test programs are running in RAM same way I tried with the
> FreeBSD kernel.
>
>   
Oops, you use U-Boot. I was thinking about freebsd's boot loaders.
>> Also, can you give us more info about your board?
>>     
>
> What do you want to know? ;-) It's a multi-purpose board with an ARM9
> Atmel AT91RM9200 controller, 180 MHz, 64 MB RAM, ethernet, serial ports,
> Linux 2.6 preinstalled. Want a picture?
> http://www.taskit.de/img/portux/050922_Portux920TEU-mit-CF-Card_741x550.jpg
>
> Unfortunately there is no English technical reference available, but I
> have a English user guide dedicated for use with Linux:
> http://www.taskit.de/ftp/manuals/Portux920T_Linuxguide_V1.2_(EN).pdf
> This is the German technical reference:
> http://www.taskit.de/ftp/manuals/Portux920T_Techref_v1.0_(DE).pdf
>
>   
> There is a huge table on page 6, 7 and 8 that lists the physical address
> space (with board specifica) completely. I assume I need to map some more
> PA before enabling the MMU.
>
> Thanks
> Björn
>
>
>
>   




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