Hi Ard, Am 01.04.2015 um 09:50 schrieb ard <a...@kwaak.net>:
> Hi, > > On Wed, Apr 01, 2015 at 07:35:11AM +0200, Dr. H. Nikolaus Schaller wrote: >> Am 31.03.2015 um 23:34 schrieb David Boddie <da...@boddie.org.uk>: >> >>> On Tuesday 31. March 2015, Dr. H. Nikolaus Schaller wrote: >>>> Am 24.03.2015 um 23:46 schrieb David Boddie <da...@boddie.org.uk>: >>> >>>>> I noticed the 3.12-wip-letux400 branch at >>>>> >>>>> http://git.goldelico.com/gta04-kernel.git >>>>> >>>>> and will look into that. >>>> >>>> Well, it is just a dummy. No real work has been done to support the Letux >>>> 400 in this kernel, but I would be happy to support such a project. Maybe >>>> we could even rebase and jump forward to 4.0-rc6 :) >>> >>> We'll see. Unfortunately, quite a lot has happened since 2.6.24.3. :-) >> Yes… Approx. 35 releases (with 6-8 rc each). > > But also a lot of improvement on ubi. We can use ubi for the 2 > nand chips, and use ubifs on that. Yes, and it works fine and stable on ARM (we have it on GTA04 since 3.12 kernels). > >>> >>>>> Is that likely to be a better approach than >>>>> attempting to merge the changes to the 2.6.24 kernel into a later >>>>> release? >>>> >>>> The problem is that the jz4730 SoC isn’t supported by any official >>>> kernel. Just the jz4740 SoC and they have quite some differences (but also >>>> similarities). >>>> >>>> And, the documentation of the jz4730 did exist online but has disappeared >>>> a while ago. So the first step would be to collect as much about the jz4730 >>>> SoC as possible. >>>> >>>> Maybe you can find copies of >>>> http://projects.kwaak.net/twiki/bin/view/Epc700/WebHome in some wayback >>>> machine? > > Sorry about that. My twiki was compromised and the easiest way > out was to just stop the apache. > I will find a way to correct it. Maybe just read-only. Would be sufficient IMHO. > There is > not a lot of information though. Well, if I remember correctly there were photos and analyses of gpio assignments etc. which might be of big help for newer kernels. > >>> There seem to be some documents that can be retrieved via archive.org and >>> also elsewhere. >>> >>>> Or someone just reading this list has archived some (or all) documents? >>>> >>>> I have uploaded what I had found a while ago: >>>> >>>> http://download.goldelico.com/letux-400/files/ > > Those schematics seem awesome AFAIK they were found in the FCC database. But boards/revisions differ slightly in what is really populated. > >>> Thanks for those. I think they will overlap what has already been found, but >>> it's always good to have another archive available. >>> >>>> The next step could be to extend the mips cpu support for the jz4730 in >>>> the kernel.org arch/mips tree (unfortunately they are not yet on DT like >>>> ARM which would make some things a little easier like formally describing >>>> the SoC). >>> >>> That's what I've been led to believe regarding the device tree work but I'm >>> not focusing on this myself. At the moment I'm trying to reuse work I've >>> done >>> on other embedded-like systems for the user space software the minibook will >>> need. I'll try to keep you updated about both of these efforts. Is this >>> mailing list the best place for that? > > I am pre-occupied with exynos (odroids/chromebooks) atm. I have a > Letux 400, and an epc700 (from intertoys). At least one battery > and battery cover is broken. Although I do not want to part with > them, I can send these to anyone who is actually active, and put > them to better use. > The epc700 has a serial console "break out", but no build in > wifi. Or it might have it. I did some soldering. AFAIK reflashing a bootloader needs JTAG access to the Flash memory. I had started a project to build such an adapter some years ago but it was never finished or tested (mainly because of lack of MIPS compatible JTAG software for the OpenMoko debug board): http://projects.goldelico.com/p/letux-400-jtag/ > >> There was another mailing list not only for the Letux 400 but all MIPS based >> minibooks. I don’t know if it is still alive: >> >> http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/mipsbook-devel > > I’m not even sure how it popped up in my inbox ;-). Yes, the list appears to work (and I have forwarded my responses to both) but there, the archive is also dead. So the mostly maintained list is the lenny...@goldelico.com (because I am the sysadmin for it :). > > Regards, > Ard van Breemen > BR, Nikolaus _______________________________________________ Mipsbook-devel mailing list Mipsbook-devel@linuxtogo.org http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/mipsbook-devel
