Hi Marcos, The following are the details from by board
###from uboot board=am335x board_name=A335BNLT board_rev=00A5 ### reg dump 0x44E10600 2b94402e 0x44E10604 20fd0383 ###linux dump hexdump -e '8/1 "%c"' "/sys/bus/i2c/devices/0-0050/eeprom" -s 0A5 Thanks, Ragunath On Fri, Sep 18, 2015 at 12:35 AM, Marcos Díaz < marcos.d...@tallertechnologies.com> wrote: > Ragu, > I would like you to confirm which revision you have, for this I printed > the following registers in the BBB: > > 0x44E10600 and 0x44E10604 > > The first will print something like: > 1b94402e for BBB rev A5C (XAM3359AZCZ100) ( 1b means rev.A of the > microcontroller) > 2b94402e for BBB rev C (AM3358BZCZ100) (2b means rev B of the > microcontroller) > > The second register will print something like: > > 20ff0383 for A5c (this means that this is AM3359) > 20fd0383 for C (this means it is an AM3358). > > Please let me know which are this values in your Board. > > Thanks! > > > > On Thu, Sep 17, 2015 at 11:44 AM, Marcos Díaz < > marcos.d...@tallertechnologies.com> wrote: > >> 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! >> >> On Thu, Sep 17, 2015 at 11:12 AM, Joel Sherrill < >> joel.sherr...@oarcorp.com> wrote: >> >>> >>> >>> On 9/17/2015 8:43 AM, Marcos Díaz wrote: >>> >>>> Yes, in my case the older (that doesn't work) revision is a >>>> XAM3359AZCZ100 >>>> >>>> And the rev C (that works well with cache) is >>>> AM3358BZCZ100 >>>> >>> >>> Can we determine that in software? >>> >>> On Thu, Sep 17, 2015 at 10:32 AM, Joel Sherrill < >>>> joel.sherr...@oarcorp.com <mailto:joel.sherr...@oarcorp.com>> wrote: >>>> >>>> >>>> >>>> On September 17, 2015 8:26:41 AM CDT, "Marcos Díaz" < >>>> marcos.d...@tallertechnologies.com <mailto: >>>> marcos.d...@tallertechnologies.com>> wrote: >>>> >Hi, >>>> > >>>> >How did you see the revision number? if you are using u-boot you >>>> can >>>> >pause the start and write printenv and enter to see that: >>>> > >>>> > >>>> >board=am335x >>>> >board_name=A335BNLT >>>> >board_rev=00C0 >>>> > >>>> > >>>> >This is in my version. >>>> > >>>> >Please tell me so I can check if is the revision, or perhaps is >>>> >something else in u-boot initialization. >>>> > >>>> > >>>> >For the question Joel asked there is a way: >>>> > >>>> > >>>> http://dumb-looks-free.blogspot.com.ar/2014/05/beaglebone-black-bbb-revision-serial.html >>>> > >>>> >apparently, in the eeprom thorugh i2c it is recorded. But first we >>>> must >>>> >confirm that is a problem from the revisions, since Ragu has the >>>> >problem in a rev C. >>>> >>>> Does the SoC itself have a revision number we can read? It may be >>>> that newer boards have a newer CPU. >>>> >>>> >Greetings >>>> > >>>> > >>>> >On Wed, Sep 16, 2015 at 7:22 PM, Joel Sherrill >>>> ><joel.sherr...@oarcorp.com <mailto:joel.sherr...@oarcorp.com>> >>>> wrote: >>>> > >>>> > >>>> > >>>> >On 9/16/2015 2:41 PM, ragu nath wrote: >>>> > >>>> >Hi Marcos, >>>> > >>>> >Great news! I did not find any solution to the issue. I have a >>>> REV C >>>> >board from element14. Is this the same board you are using? In my >>>> >board I saw the issue. >>>> > >>>> >Does this have anything to do with the patch you submitted [PATCH] >>>> >Beaglebone: fix missing clobber in inline assembly. >>>> > >>>> https://lists.rtems.org/pipermail/devel/2015-September/012531.html >>>> >I have not yet tested with this patch. >>>> > >>>> >The freebsd driver is working with cache disabled. If possible >>>> pls >>>> >check if it is working with cache enabled in your board. >>>> > >>>> > >>>> >If this is a board revision related issue, is there a way >>>> >programmatically to >>>> >know which revision the board is? That way the BSP could >>>> auto-detect >>>> >the right >>>> >thing to do. Otherwise, we may be looking at a BSP variant or a >>>> build >>>> >option. >>>> >I would rather avoid those if we can auto-detect. >>>> > >>>> >--joel >>>> > >>>> > >>>> >Thanks, >>>> >Ragunath >>>> > >>>> > >>>> >On Mon, Sep 14, 2015 at 7:22 PM, Marcos Díaz >>>> ><marcos.d...@tallertechnologies.com <mailto: >>>> marcos.d...@tallertechnologies.com> >>>> ><mailto:marcos.d...@tallertechnologies.com <mailto: >>>> marcos.d...@tallertechnologies.com>>> wrote: >>>> > >>>> > Hi Ragu, >>>> >I wanted to know if you were able to see something else about the >>>> >problem we had in the BBB when using LWIP and enabling cache ( the >>>> >program freezes). >>>> >I can tell you that here we were using BBB rev. A5C and had this >>>> >problem, but now we could test this with a BBB Rev C, and it >>>> >successfully works with cache enabled (using the same sdcard in >>>> both >>>> >boards, one works and the other doesn't). >>>> > Greetings >>>> > >>>> > -- >>>> > >>>> > ______________________________ >>>> > >>>> > <http://www.tallertechnologies.com> >>>> > >>>> > * >>>> > * >>>> > >>>> > Marcos Díaz >>>> > >>>> > Software Engineer >>>> > >>>> > * >>>> > * >>>> > >>>> > San Lorenzo 47, 3rd Floor, Office 5 >>>> > >>>> > Córdoba, Argentina >>>> > >>>> > * >>>> > * >>>> > >>>> > Phone:+54 351 4217888 / +54 351 4218211/ +54 351 7617452 >>>> > >>>> > Skype:markdiaz22 >>>> > >>>> > >>>> > >>>> > >>>> > >>>> >-- >>>> >ragu >>>> > >>>> > >>>> >-- >>>> >Joel Sherrill, Ph.D. Director of Research & >>>> Development >>>> >joel.sherr...@oarcorp.com On-Line Applications Research >>>> >Ask me about RTEMS: a free RTOS Huntsville AL 35805 >>>> >Support Available (256) 722-9985 >>>> > >>>> > >>>> > >>>> > >>>> >-- >>>> > >>>> >______________________________ >>>> > >>>> > >>>> > >>>> > >>>> >Marcos Díaz >>>> > >>>> >Software Engineer >>>> > >>>> > >>>> >San Lorenzo 47, 3rd Floor, Office 5 >>>> > >>>> >Córdoba, Argentina >>>> > >>>> > >>>> >Phone: +54 351 4217888 / +54 351 4218211/ +54 351 7617452 >>>> > >>>> >Skype: markdiaz22 >>>> >>>> --joel >>>> >>>> >>>> >>>> >>>> -- >>>> >>>> ______________________________ >>>> >>>> <http://www.tallertechnologies.com> >>>> >>>> * >>>> * >>>> >>>> Marcos Díaz >>>> >>>> Software Engineer >>>> >>>> * >>>> * >>>> >>>> San Lorenzo 47, 3rd Floor, Office 5 >>>> >>>> Córdoba, Argentina >>>> >>>> * >>>> * >>>> >>>> Phone:+54 351 4217888 / +54 351 4218211/ +54 351 7617452 >>>> >>>> Skype:markdiaz22 >>>> >>>> >>>> >>> -- >>> Joel Sherrill, Ph.D. Director of Research & Development >>> joel.sherr...@oarcorp.com On-Line Applications Research >>> Ask me about RTEMS: a free RTOS Huntsville AL 35805 >>> Support Available (256) 722-9985 >>> >> >> >> >> -- >> >> ______________________________ >> >> <http://www.tallertechnologies.com> >> >> >> Marcos Díaz >> >> Software Engineer >> >> >> San Lorenzo 47, 3rd Floor, Office 5 >> >> Córdoba, Argentina >> >> >> Phone: +54 351 4217888 / +54 351 4218211/ +54 351 7617452 >> >> Skype: markdiaz22 >> >> > > > -- > > ______________________________ > > <http://www.tallertechnologies.com> > > > Marcos Díaz > > Software Engineer > > > San Lorenzo 47, 3rd Floor, Office 5 > > Córdoba, Argentina > > > Phone: +54 351 4217888 / +54 351 4218211/ +54 351 7617452 > > Skype: markdiaz22 > > -- ragu
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