Sent this to Wolfgang last night.&nbsp; Accidently omitted Syvain and the list.<br><br>The actual bestcomm &quot;microcode&quot; in Sylvain's tree is the same as the
latest Freescale supported code.&nbsp; The linux driver code that interfaces
with it is code written by Dale Farnsworth and has Montavista
copyright.&nbsp; I don't know if it is based on old Freescale (Motorola)
code or if it is Dale's creation (perhaps Dale can comment).
<br><br>I have just spent some time getting UDMA support into the ATA
driver using the the bestcomm code in Sylvain's tree.&nbsp; In the process I
found some bugs in the code that may explain some problems people have
seen with the FEC driver.&nbsp; I'll try to get the patch out tomorrow.
<br><br>The ATA driver is a port from a version that worked on an
older kernel and used the supported Freescale Bestcomm code.&nbsp; I did the
port because it was my understanding that attempts to get the supported
Freescale code into a public tree had met with resistance in the past.&nbsp;
(Second hand info, I'm actually fairly new to the 52xx world).
<br><br>The pluses for the Freescale version is that several devices
are supported that are not in Sylvain's tree.&nbsp; The version in Sylvain's
kernel has a generic api plus specific code for FEC.&nbsp; My upcoming patch
fixes some bugs, adds some missing functionality that I need for ATA
and adds the specific ATA dma driver code.
<br><br>The biggest minus for the Freescale version is that it is
really opaque.&nbsp; Its implementation makes it hard to figure out what the
code is actually doing.<br><br>If there is a chance of getting the
Freescale Bestcomm code into Sylvain's tree (and on up the line to
Linus) I would welcome that since I would not have to port other
Bestcomm dependent drivers to the version in Sylvain's tree.&nbsp; I would
gladly port the current FEC code to the Freescale Bestcomm code to
avoid the work of porting the other drivers.&nbsp; Also we at Freescale
would prefer to have one version of the Bestcomm code circulating.
<br><br>So I guess my question for those with an opinion is what version of Bestcomm should be we use for 5200.<br><br>Thanks for your input<br>John<br><br><div><span class="gmail_quote">On 3/29/06, <b class="gmail_sendername">
Wolfgang Denk</b> &lt;<a href="mailto:wd@denx.de">wd@denx.de</a>&gt; wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">In message &lt;
<a href="mailto:442B11E8.7020107@246tNt.com">442B11E8.7020107@246tNt.com</a>&gt; you wrote:<br>&gt;<br>&gt; It is ?<br><br>I think so.<br><br>&gt; I don't know about the 2.6-denx, but the stock 2.6.15 should work just fine.
<br>&gt; What's wrong with it ? (except it misses some drivers ... it should compile<br>&gt; and boot just fine)<br><br>Isn't the current reengineered implementation of&nbsp;&nbsp;the&nbsp;&nbsp;BestComm&nbsp;&nbsp;code<br>based&nbsp;&nbsp;on&nbsp;&nbsp;an very old Freescale version, which has known limitations
<br>and problems?<br><br>Or has there any action resulted&nbsp;&nbsp;out&nbsp;&nbsp;of&nbsp;&nbsp;the&nbsp;&nbsp;discussion&nbsp;&nbsp;with&nbsp;&nbsp;the<br>Freescale engineers, and I have missed it?<br><br>Best regards,<br><br>Wolfgang Denk<br><br>--<br>Software Engineering:&nbsp;&nbsp;Embedded and Realtime Systems,&nbsp;&nbsp;Embedded Linux
<br>Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: <a href="mailto:wd@denx.de">wd@denx.de</a><br>In accord with UNIX philosophy, Perl gives you enough&nbsp;&nbsp;rope&nbsp;&nbsp;to&nbsp;&nbsp;hang<br>yourself.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;- L. Wall &amp; R. L. Schwartz, _Programming Perl_
<br>_______________________________________________<br>Linuxppc-embedded mailing list<br><a href="mailto:Linuxppc-embedded@ozlabs.org">Linuxppc-embedded@ozlabs.org</a><br><a href="https://ozlabs.org/mailman/listinfo/linuxppc-embedded">
https://ozlabs.org/mailman/listinfo/linuxppc-embedded</a><br></blockquote></div><br>