[PATCH 3/16] Renamed BBB template linker scripts, updated architecture header file, Makefile, config.h

Jarielle Catbagan jcatbagan93 at gmail.com
Wed Jun 17 15:19:10 UTC 2015

I forgot to mention that the blog post on DDR3 is a work in progress.

On Wed, Jun 17, 2015 at 8:18 AM, Jarielle Catbagan
<jcatbagan93 at gmail.com> wrote:
> Hello Ed,
> Your Git terminology is spot on. :-)
> I cloned the source tree from the RTEMS git repositories.  The Umon
> source tree that I worked off of was cloned from
> https://git.rtems.org/umon/.
> Please let me know if you have any questions, comments, or concerns in
> regards to cloning Umon.
> I am finishing up patches 4/16 to 16/16.  These patches simply include
> various modifications/additions to get the BBB directory looking more
> like a BBB directory.  I will be submitting them very shortly.
> Hopefully these patches come out all right because to be honest this
> is actually my first time preparing and submitting patches.  If there
> are any discrepancies, please do let me know along with any
> suggestions on how I can resolve the issue.
> Just FYI, I created a blog post documenting how I was approaching the
> porting process.  It can be found here
> http://www.jariellecatbagan.com/the-approach-to-porting-umon-to-the-bbb/.
> Just as before, please let me know if there are any discrepancies.
> As of right now, I am simultaneously preparing the remaining patches
> while working on implementing the DDR3 initialization.  I have also
> created a blog post regarding the fundamentals of DDR3 and what it
> entails to configure it for use on the AM335x/BBB.  The blog post that
> I created can be found here
> http://www.jariellecatbagan.com/the-theory-behind-external-ddr3-initialization-on-the-bbb/.
> I just want to ask what do you think about my thought-process.  Am I
> approaching the porting process in the right direction?
> Thank you.
> Best Regards.
> On Wed, Jun 17, 2015 at 5:08 AM, Ed Sutter <ed.sutter at alcatel-lucent.com> wrote:
>> On 6/17/2015 4:51 AM, Jarielle Catbagan wrote:
>>> Please excuse me if I might have caused any confusion regarding the
>>> order of the patches.  The first two submitted, with the first patch
>>> still waiting for approval to be submitted into this mailing list at
>>> the time of this patch's submission, are [PATCH 1/16] and [PATCH
>>> 2/16].
>>> The template linker scripts were renamed to correspond to the PLATFORM
>>> variable in the BBB Makefile.  The architecture header file was
>>> renamed to relate to the BBB platform.
>>> Modified the CPU type supplied to the -mcpu compiler switch to cortex-a8.
>>> Updated the ROM length that can be potentially allocated to Umon
>>> during the initial boot.  This is done through the modification of
>>> BOOTROMLEN in the Makefile.  The value assigned reflects the fact that
>>> there are 109KB that can be used by Umon during the initial boot
>>> procedures.
>>> Modified the DEFAULT_ETHERADD in config.h to match the MAC addresses
>>> associated with the MAC address of the BBB's that I have.  This value
>>> should be updated on a user-by-user basis.
>> Jarielle,
>> Good stuff...
>> Now I need to play catchup.
>> I had been working with my own local copy of the bbb port, so I need to sync
>> up
>> with you and the repository.  Last I recall, there was confusion regarding
>> where
>> to grab the code from.  Where are you cloning your tree from?
>> Sorry if my "git terminology" is off, I'm still a relatively new user of git
>> (moving off svn
>> slowly but surely).
>> Ed
>> --
>> Ed Sutter
>> Alcatel-Lucent Technologies -- Bell Laboratories
>> Phone: 908-582-2351
>> Email: ed.sutter at alcatel-lucent.com
>> _______________________________________________
>> umon-devel mailing list
>> umon-devel at rtems.org
>> http://lists.rtems.org/mailman/listinfo/umon-devel

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