On 23-1-2013 19:52, Michael Haberler wrote: > Am 23.01.2013 um 16:17 schrieb Bas Laarhoven: > >> Since you have experience with patching xenomai on top of a kernel, is there >> any chance applying the patches on the 3.2.34 kernel? >> You can download that kernel from >> https://github.com/modmaker/linux/tree/linux-ti33x-psp-3.2.34-r18a+gitr720e07b4c1f687b61b147b31c698cb6816d72f01. >> The link might not work directly, but it contains all the relevant >> information to find the branch in my kernel tree. >> >> The advantage of this kernel is that it contains the relevant drivers for >> GPIO, PWM, ADC, PRUSS, etc. It also contains the EEPROM based configuration >> decoder that I wrote. It's used by my BeBoPr board to automatically >> configure the I/O, so one doesn't need to load drivers, set the multiplexers >> and so on (Charles: This might save you a lot of work!). > I am now looking into it, and I am not so sure about the last paragraph. ??? Huh, I'm not sure if I understand what you're saying here. Do you think the TI branches are better., is that what you're saying? Then I suggest that you read back the IRC logs on #beagle over the last year. > > It is clear that Koen has been using branches from the arago repo: > http://arago-project.org/git/projects/linux-am33x.git ; the last matching tag > is v3.2_AM335xPSP_04.06.00.07 and this is now 9 months old; thereafter no > more tag or branch matches for some 2000 commits. So you noticed, that's why I pointed you to another branch : ) > > I updated my branch to v3.2_AM335xPSP_04.06.00.09-rc2 (7 weeks old) and also > merged v3.2-staging (12 days old) from the same repo. So I would say my > branch is up to date with respect to the arago repo - whatever that means; I > am at loss about even telling where the patches ontop of > v3.2_AM335xPSP_04.06.00.07 in Koens branch came from. Do any of the Koen > patches ever go back to arago? Have these projects diverged? IIRC TI doesn't want them (probably same reasoning as with the PRUSS, big company, own rules, many people involved, etc) So yes, these projects have diverged. But Koen will take changes from TI, so his tree has always been more complete (for the Bone). > > I have tried to merge the ipipe patch at the 3.2.21 mergepoint in this > branches' history; it is possible with some 15 or so conflicts, some of which > I'm not totally sure about, but it looks doable in principle. Merging the > rest of of Koens branch back in brings another 3 conflicts, one of which in > include/asm/pgtable.h I dont have the faintest idea how to resolve. > > So Koen sure has been busy, but I have no idea what this work actually is > about.
??? Koen is working for CircuitCo and maintaining the 'official' kernel for the Bone. So this is your best chance on getting a kernel that will work on the Bone. > > I dont want to sound picky, but I would really like to know a bit more how > this relates to the TI arago repo and potential upstream merges of this code; > I have some reservations taking as a base what at this point looks like the > prototypical undocumented mystery branch to me. Could be genius work or > quicksand, I cannot tell, and obviously the genius lacks the energy to tell > us either. > > Can you clarify how this relates to arago and any upstream merge work? > > There's nothing to be said against merging some driver, but the rest - sorry, > that is a real mess. I want to have a better case than 'bleeding edge' and > version number matching; this isnt engineering anymore, its gross hacks based > on guesswork. Okay, but I think you'll have to wait another 6 months (at least) before getting there with one of the (other) more official trees. I do understand your reasoning. I've just given you a shortcut to a more up-to-date kernel that is being maintained (although in a rather peculiar way) and that is accepting patches. Try that with the official kernel or the am335x tree. Are you volunteering to maintain a tree for linuxcnc? I've been there, starting with kernel version 0.98, and know how important it is to get your code upstream. I suggest you contact Koen on IRC, maybe he can clarify things better than I can here. -- Bas > > - Michael > ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnnow-d2d _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
