[Lenny400] LetuxOS on SD card for MIPS JZ4780 CI20
paul at boddie.org.uk
Fri Apr 19 13:37:40 CEST 2019
On Thursday 18. April 2019 19.17.12 H. Nikolaus Schaller wrote:
> > Am 18.04.2019 um 19:08 schrieb Paul Boddie <paul at boddie.org.uk>:
> > https://github.com/MIPS/CI20_u-boot
> > Branch ci20-v2013.10 from the above repository.
> Yes, exactly.
Good to know that we're still on the same page. :-)
> Most likely... But how should we run a device-tree kernel now?
I imagine that any future effort would depend on doing so.
> It does not look as if there is a MIPS pendant to CONFIG_ARM_APPENDED_DTB.
> Android seems to have that:
> Well, there is always the option to manually do the append. But I am not
> sure if the MIPS kernel is searching for it...
Is this it...?
I vaguely remember similar options when doing the initial work for the Letux
400, or maybe it was related to the Ben NanoNote and newer kernels. Maybe
Of course, I did spend some time trying to define a usable device tree for the
Letux 400, and I am pretty sure that the NanoNote kernel adopted device tree.
Plus, there are device tree files for the JZ4780 and CI20, so I do wonder
whether the support isn't already in place. So, maybe a perusal of the CI20
discussion groups/lists is needed to remind myself.
> Or should we backport a newer bootm command? That may not be easy as it
> assumes a standard to pass the DTB address to a kernel and that might not
> be in the old tree.
> So we are a little stuck here. Ideas are welcome!
I would need to refresh my memory a lot more to be able to say something
sensible, I think.
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