[Buildroot] [PATCH] Add out-of-source U-Boot device tree support

James Balean james at balean.com.au
Wed Apr 5 03:29:50 UTC 2017


Hi All,

Thank you for your responses. I will submit a new version of the patch
with your suggestions following this.

On 29 March 2017 at 18:09, Thomas Petazzoni
<thomas.petazzoni at free-electrons.com> wrote:
> > > Not necessarily. The DT can be used by U-Boot itself to know which
> > > peripherals are available, and how they should be configured.  
> > 
> >  But U-Boot can always pass the device tree it uses internally to
> >  the kernel, no?
> 
> I don't know. Would have to check.

I believe it is possible to use U-Boot's device tree blob when booting
Linux. U-Boot's DTB is simply concatenated on the end of itself, so the
address at which the blob starts could be determined and supplied to the
'bootm' command when booting Linux. I have not tested this though, so
will report back if I get around to it.

Thanks again,
James



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