<div dir="ltr">Ragu,<div>I would like you to confirm which revision you have, for this I printed the following registers in the BBB:</div><div><br></div><div>0x44E10600 and 0x44E10604<br></div><div><br></div><div>The first will print something like:</div><div>1b94402e for BBB rev A5C (<span style="font-size:12.8px">XAM3359AZCZ100) ( 1b means rev.A of the microcontroller)</span><br></div><div><span style="font-size:12.8px">2b94402e for BBB rev C (</span><span style="color:rgb(80,0,80);font-size:12.8px">AM3358BZCZ100) (2b means rev B of the microcontroller)</span><br></div><div><span style="color:rgb(80,0,80);font-size:12.8px"><br></span></div><div><span style="color:rgb(80,0,80);font-size:12.8px">The second register will print something like:</span></div><div><span style="color:rgb(80,0,80);font-size:12.8px"><br></span></div><div><font color="#500050"><span style="font-size:12.8px">20ff0383 for A5c (this means that this is AM3359)</span></font><br></div><div><font color="#500050"><span style="font-size:12.8px">20fd0383 for C (this means it is an AM3358).</span><br></font></div><div><font color="#500050"><span style="font-size:12.8px"><br></span></font></div><div><font color="#500050"><span style="font-size:12.8px">Please let me know which are this values in your Board.</span></font></div><div><font color="#500050"><span style="font-size:12.8px"><br></span></font></div><div><font color="#500050"><span style="font-size:12.8px">Thanks!</span></font></div><div><span style="color:rgb(80,0,80);font-size:12.8px"><br></span></div><div><span style="font-size:12.8px"><br></span></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Sep 17, 2015 at 11:44 AM, Marcos Díaz <span dir="ltr"><<a href="mailto:marcos.diaz@tallertechnologies.com" target="_blank">marcos.diaz@tallertechnologies.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Yes, sorry about that, There are two registers we can check to see the different revision numbers. I will check it myself once i confirm that the different revisions are the problem (i'm not sure because of what Ragu said). Thanks!</div><div class="gmail_extra"><div><div class="h5"><br><div class="gmail_quote">On Thu, Sep 17, 2015 at 11:12 AM, Joel Sherrill <span dir="ltr"><<a href="mailto:joel.sherrill@oarcorp.com" target="_blank">joel.sherrill@oarcorp.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span><br>
<br>
On 9/17/2015 8:43 AM, Marcos Díaz wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Yes, in my case the older (that doesn't work) revision is a<br>
XAM3359AZCZ100<br>
<br>
And the rev C (that works well with cache) is<br>
AM3358BZCZ100<br>
</blockquote>
<br></span>
Can we determine that in software?<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On Thu, Sep 17, 2015 at 10:32 AM, Joel Sherrill <<a href="mailto:joel.sherrill@oarcorp.com" target="_blank">joel.sherrill@oarcorp.com</a> <mailto:<a href="mailto:joel.sherrill@oarcorp.com" target="_blank">joel.sherrill@oarcorp.com</a>>> wrote:<span><br>
<br>
<br>
<br>
On September 17, 2015 8:26:41 AM CDT, "Marcos Díaz" <<a href="mailto:marcos.diaz@tallertechnologies.com" target="_blank">marcos.diaz@tallertechnologies.com</a> <mailto:<a href="mailto:marcos.diaz@tallertechnologies.com" target="_blank">marcos.diaz@tallertechnologies.com</a>>> wrote:<br>
>Hi,<br>
><br>
>How did you see the revision number? if you are using u-boot you can<br>
>pause the start and write printenv and enter to see that:<br>
><br>
><br>
>board=am335x<br>
>board_name=A335BNLT<br>
>board_rev=00C0<br>
><br>
><br>
>This is in my version.<br>
><br>
>Please tell me so I can check if is the revision, or perhaps is<br>
>something else in u-boot initialization.<br>
><br>
><br>
>For the question Joel asked there is a way:<br>
><br>
><a href="http://dumb-looks-free.blogspot.com.ar/2014/05/beaglebone-black-bbb-revision-serial.html" rel="noreferrer" target="_blank">http://dumb-looks-free.blogspot.com.ar/2014/05/beaglebone-black-bbb-revision-serial.html</a><br>
><br>
>apparently, in the eeprom thorugh i2c it is recorded. But first we must<br>
>confirm that is a problem from the revisions, since Ragu has the<br>
>problem in a rev C.<br>
<br>
Does the SoC itself have a revision number we can read? It may be that newer boards have a newer CPU.<br>
<br>
>Greetings<br>
><br>
><br>
>On Wed, Sep 16, 2015 at 7:22 PM, Joel Sherrill<br></span><span>
><<a href="mailto:joel.sherrill@oarcorp.com" target="_blank">joel.sherrill@oarcorp.com</a> <mailto:<a href="mailto:joel.sherrill@oarcorp.com" target="_blank">joel.sherrill@oarcorp.com</a>>> wrote:<br>
><br>
><br>
><br>
>On 9/16/2015 2:41 PM, ragu nath wrote:<br>
><br>
>Hi Marcos,<br>
><br>
>Great news! I did not find any solution to the issue. I have a REV C<br>
>board from element14. Is this the same board you are using? In my<br>
>board I saw the issue.<br>
><br>
>Does this have anything to do with the patch you submitted [PATCH]<br>
>Beaglebone: fix missing clobber in inline assembly.<br>
><a href="https://lists.rtems.org/pipermail/devel/2015-September/012531.html" rel="noreferrer" target="_blank">https://lists.rtems.org/pipermail/devel/2015-September/012531.html</a><br>
>I have not yet tested with this patch.<br>
><br>
>The freebsd driver is working with cache disabled. If possible pls<br>
>check if it is working with cache enabled in your board.<br>
><br>
><br>
>If this is a board revision related issue, is there a way<br>
>programmatically to<br>
>know which revision the board is? That way the BSP could auto-detect<br>
>the right<br>
>thing to do. Otherwise, we may be looking at a BSP variant or a build<br>
>option.<br>
>I would rather avoid those if we can auto-detect.<br>
><br>
>--joel<br>
><br>
><br>
>Thanks,<br>
>Ragunath<br>
><br>
><br>
>On Mon, Sep 14, 2015 at 7:22 PM, Marcos Díaz<br>
><<a href="mailto:marcos.diaz@tallertechnologies.com" target="_blank">marcos.diaz@tallertechnologies.com</a> <mailto:<a href="mailto:marcos.diaz@tallertechnologies.com" target="_blank">marcos.diaz@tallertechnologies.com</a>><br></span><div><div>
><mailto:<a href="mailto:marcos.diaz@tallertechnologies.com" target="_blank">marcos.diaz@tallertechnologies.com</a> <mailto:<a href="mailto:marcos.diaz@tallertechnologies.com" target="_blank">marcos.diaz@tallertechnologies.com</a>>>> wrote:<br>
><br>
> Hi Ragu,<br>
>I wanted to know if you were able to see something else about the<br>
>problem we had in the BBB when using LWIP and enabling cache ( the<br>
>program freezes).<br>
>I can tell you that here we were using BBB rev. A5C and had this<br>
>problem, but now we could test this with a BBB Rev C, and it<br>
>successfully works with cache enabled (using the same sdcard in both<br>
>boards, one works and the other doesn't).<br>
> Greetings<br>
><br>
> --<br>
><br>
> ______________________________<br>
><br>
> <<a href="http://www.tallertechnologies.com" rel="noreferrer" target="_blank">http://www.tallertechnologies.com</a>><br>
><br>
> *<br>
> *<br>
><br>
> Marcos Díaz<br>
><br>
> Software Engineer<br>
><br>
> *<br>
> *<br>
><br>
> San Lorenzo 47, 3rd Floor, Office 5<br>
><br>
> Córdoba, Argentina<br>
><br>
> *<br>
> *<br>
><br>
> Phone:+54 351 4217888 / +54 351 4218211/ +54 351 7617452<br>
><br>
> Skype:markdiaz22<br>
><br>
><br>
><br>
><br>
><br>
>--<br>
>ragu<br>
><br>
><br>
>--<br>
>Joel Sherrill, Ph.D. Director of Research & Development<br>
>joel.sherrill@OARcorp.com On-Line Applications Research<br>
>Ask me about RTEMS: a free RTOS Huntsville AL 35805<br>
>Support Available (256) 722-9985<br>
><br>
><br>
><br>
><br>
>--<br>
><br>
>______________________________<br>
><br>
><br>
><br>
><br>
>Marcos Díaz<br>
><br>
>Software Engineer<br>
><br>
><br>
>San Lorenzo 47, 3rd Floor, Office 5<br>
><br>
>Córdoba, Argentina<br>
><br>
><br>
>Phone: +54 351 4217888 / +54 351 4218211/ +54 351 7617452<br>
><br>
>Skype: markdiaz22<br>
<br>
--joel<br>
<br>
<br>
<br>
<br>
--<br>
<br>
______________________________<br>
<br>
<<a href="http://www.tallertechnologies.com" rel="noreferrer" target="_blank">http://www.tallertechnologies.com</a>><br>
<br>
*<br>
*<br>
<br>
Marcos Díaz<br>
<br>
Software Engineer<br>
<br>
*<br>
*<br>
<br>
San Lorenzo 47, 3rd Floor, Office 5<br>
<br>
Córdoba, Argentina<br>
<br>
*<br>
*<br>
<br>
Phone:+54 351 4217888 / +54 351 4218211/ +54 351 7617452<br>
<br>
Skype:markdiaz22<br>
<br>
<br>
</div></div></blockquote><div><div>
<br>
-- <br>
Joel Sherrill, Ph.D. Director of Research & Development<br>
joel.sherrill@OARcorp.com On-Line Applications Research<br>
Ask me about RTEMS: a free RTOS Huntsville AL 35805<br>
Support Available (256) 722-9985<br>
</div></div></blockquote></div><br><br clear="all"><div><br></div></div></div><span class="HOEnZb"><font color="#888888">-- <br></font></span><div><div dir="ltr"><span><span class="HOEnZb"><font color="#888888"><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><span style="font-size:16px;font-family:Arial;color:#000000;background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">______________________________</span></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><a href="http://www.tallertechnologies.com" target="_blank"><img src="http://www.tallertechnologies.com/templates/tallertechnologies/images/signature.png" width="200" height="78"></a></p></font></span><span class=""><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><b style="font-weight:normal"><br><span style="font-size:16px;font-family:Arial;color:#000000;background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"></span></b></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><span style="color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><font face="verdana, sans-serif" size="4">Marcos Díaz</font></span></p><p dir="ltr" style="margin-top:0pt;margin-bottom:0pt"><font color="#000000" face="verdana, sans-serif" size="2"><span style="line-height:17px;white-space:pre-wrap">Software Engineer</span></font></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><b style="font-weight:normal"><br><span style="font-size:15px;font-family:Arial;color:#000000;background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"></span></b></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><span style="color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><font face="arial, helvetica, sans-serif" size="1">San Lorenzo 47, 3rd Floor, Office 5</font></span></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><span style="color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><font face="arial, helvetica, sans-serif" size="1">Córdoba, Argentina </font></span></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><b style="font-weight:normal"><font face="arial, helvetica, sans-serif" size="1"><br><span style="color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"></span></font></b></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><font face="arial, helvetica, sans-serif" size="1"><span style="color:rgb(0,0,0);background-color:transparent;font-weight:bold;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">Phone:</span><span style="color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"> +54 351 4217888 / +54 351 4218211/ </span><span style="color:rgb(0,0,0);line-height:12px;white-space:pre-wrap">+54 351 7617452</span></font></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><font face="arial, helvetica, sans-serif" size="1"><span style="color:rgb(0,0,0);background-color:transparent;font-weight:bold;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">Skype:</span><span style="color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"> markdiaz22</span></font></p><div><span style="font-size:11px;font-family:Arial;color:#000000;background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><br></span></div></span></span></div></div>
</div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><span><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><span style="font-size:16px;font-family:Arial;color:#000000;background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">______________________________</span></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><a href="http://www.tallertechnologies.com" target="_blank"><img src="http://www.tallertechnologies.com/templates/tallertechnologies/images/signature.png" width="200" height="78"></a></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><b style="font-weight:normal"><br><span style="font-size:16px;font-family:Arial;color:#000000;background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"></span></b></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><span style="color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><font face="verdana, sans-serif" size="4">Marcos Díaz</font></span></p><p dir="ltr" style="margin-top:0pt;margin-bottom:0pt"><font color="#000000" face="verdana, sans-serif" size="2"><span style="line-height:17px;white-space:pre-wrap">Software Engineer</span></font></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><b style="font-weight:normal"><br><span style="font-size:15px;font-family:Arial;color:#000000;background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"></span></b></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><span style="color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><font face="arial, helvetica, sans-serif" size="1">San Lorenzo 47, 3rd Floor, Office 5</font></span></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><span style="color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><font face="arial, helvetica, sans-serif" size="1">Córdoba, Argentina </font></span></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><b style="font-weight:normal"><font face="arial, helvetica, sans-serif" size="1"><br><span style="color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"></span></font></b></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><font face="arial, helvetica, sans-serif" size="1"><span style="color:rgb(0,0,0);background-color:transparent;font-weight:bold;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">Phone:</span><span style="color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"> +54 351 4217888 / +54 351 4218211/ </span><span style="color:rgb(0,0,0);line-height:12px;white-space:pre-wrap">+54 351 7617452</span></font></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><font face="arial, helvetica, sans-serif" size="1"><span style="color:rgb(0,0,0);background-color:transparent;font-weight:bold;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">Skype:</span><span style="color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"> markdiaz22</span></font></p><div><span style="font-size:11px;font-family:Arial;color:#000000;background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><br></span></div></span></div></div>
</div>