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<br>
Wolfgang,<br>
<br>
Thank you for the response.<br>
My target will have 256M of RAM and I <br>
can locate das u-boot anywhere in this range so<br>
that it is not overwritten during the Linux boot process.<br>
<br>
Would the top of RAM be a better choice then?<br>
If das u-boot is not viable after Linux is started <br>
that is fine, the system will re-download das u-boot <br>
when required.<br>
<br>
Thanks <br>
Kevin<br>
<br>
Wolfgang Denk wrote:<br>
<blockquote type="cite"
cite="mid20040118150341.F3043C10AF@atlas.denx.de">
<pre wrap="">In message <a class="moz-txt-link-rfc2396E" href="mailto:40082CE1.40905@catapult.com"><40082CE1.40905@catapult.com></a> you wrote:
</pre>
<blockquote type="cite">
<pre wrap="">I have been porting das u-boot to run directly out of
RAM. So far so good, boots, serial works, ethernet works..
</pre>
</blockquote>
<pre wrap=""><!---->
Running U-Boot out of RAM requires some understanding of the
underlying principles.
</pre>
<blockquote type="cite">
<pre wrap="">The board is an 8275 with 32MB of RAM. das u-boot is
downloaded with a BDI to 0.
</pre>
</blockquote>
<pre wrap=""><!---->
This will never work. You cannot boot Linux that way, as the Linux
kernel will overwrite U-Boot when you try to boot it.
Best regards,
Wolfgang Denk
</pre>
</blockquote>
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