[Letux-kernel] Raspi3B+ support

[H. Nikolaus Schaller]

Hi Marek,

> Am 07.01.2019 um 14:32 schrieb Belisko Marek <marek.belisko at gmail.com>:
> 
> Hi,
> 
> On Mon, Jan 7, 2019 at 2:19 PM H. Nikolaus Schaller <hns at goldelico.com <mailto:hns at goldelico.com>> wrote:
> Hi Andreas,
> 
> > Am 05.01.2019 um 19:48 schrieb Andreas Kemnade <andreas at kemnade.info <mailto:andreas at kemnade.info>>:
> > 
> > Hi,
> > 
> > On Sat, 5 Jan 2019 08:21:40 +0100
> > "H. Nikolaus Schaller" <hns at goldelico.com <mailto:hns at goldelico.com>> wrote:
> > 
> >> Hi Andreas,
> >> 
> >>> Am 04.01.2019 um 20:27 schrieb Andreas Kemnade <andreas at kemnade.info <mailto:andreas at kemnade.info>>:
> >>> 
> >>> Hi,
> >>> 
> >>> On Fri, 4 Jan 2019 14:45:47 +0100
> >>> "H. Nikolaus Schaller" <hns at goldelico.com <mailto:hns at goldelico.com>> wrote:
> >>> 
> >>>> Hi,
> >>>> with help and suggestions from Mark, I finally managed
> >>>> to get our Letux kernel compile and boot on the Raspi3B+.
> >>>> 
> >>> Do you add -@ to DTC_FLAGS to make handling dtb overlays easier?  
> >> 
> >> You mean something like:
> >> 
> >> https://github.com/beagleboard/meta-beagleboard/blob/master/common-bsp/recipes-kernel/linux/linux-mainline-3.8/not-capebus/0021-OF-Compile-Device-Tree-sources-with-resolve-option.patch <https://github.com/beagleboard/meta-beagleboard/blob/master/common-bsp/recipes-kernel/linux/linux-mainline-3.8/not-capebus/0021-OF-Compile-Device-Tree-sources-with-resolve-option.patch>
> >> 
> > yes.
> > 
> >> No, since mainline kernel seems not to build or need any overlays
> >> for RasPi and I am not (yet) aiming at shield/hat/capes. Just a "PC"
> >> like setup (monitor, keyboard, LAN).
> >> 
> > Hmm, for a PC-like setup I would choose a standard debian. For a
> > RasPi with e.g. touchscreen hat I would be happy to just use a letux
> > system. And remember, someone presented a raspi phone at Fosdem in that
> > restaurant.
> 
> There seems to be a Raspi Touchscreen driver in 5.0-rc1:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.0-rc1&id=0b9f28fed3f70ff9a0380fe308739dd72a30a6f6 <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.0-rc1&id=0b9f28fed3f70ff9a0380fe308739dd72a30a6f6>
> 
> This means, letux-5.0 will have it without doing much...
> 
> Well, we still have to get it booting with console :)
> IIRc to have console enabled you need to add enable_uart=1 to config.txt file and console should work 

Yes, that is enabled:

	http://download.goldelico.com/letux-u-boot/RasPi-3B+/latest/config.txt

The problem is very different.

For example it works if I install a different DTB (one not compiled from sources) and keeping everyhting else untouched.

BR,
Nikolaus

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