[Buildroot] Cannot get build to use start_x.elf and fixup_x.dat Raspberry Pi 3

Vijay techvd at gmail.com
Sat Aug 1 20:21:27 UTC 2020


Oh my god, that was it! I just assumed the system would automatically pick
up my changes and rebuild but I should've read the documentation more
closely. Thanks for the responses. I have everything working now as I
wanted.

Regards,
Vijay

On Sat, Aug 1, 2020 at 4:10 AM Peter Seiderer <ps.report at gmx.net> wrote:

> Hello Vijay,
>
> On Sat, 1 Aug 2020 10:06:48 +0200, "Yann E. MORIN" <
> yann.morin.1998 at free.fr> wrote:
>
> > Vijay, All,
> >
> > On 2020-07-31 18:01 -0700, Vijay spake thusly:
> > > I'm fairly new to buildroot and cannot find a solution to this problem
> > > I'm having. Everything works well for me and I'm able to create the SD
> > > card images to run on my Pi 3. However, I'm trying to get the extended
> > > ("x") firmware to boot. In the Target Packages > Hardware Handling >
> > > Firmware section, I'm selecting the extended option. Buildroot is
> > > building all the different variations of the start.elf (including
> > > start_x.elf, start_cd.elf) but only using the start.elf file in the
> > > final image instead of the start_x.elf file (same with fixup.dat). So
> > > basically whether I select the "default" option on that screen or
> > > "extended," the resulting boot image is the same. If I manually copy
> > > the start_x.elf and fixup_x.dat files as start.elf and fixup.dat the
> > > I get the extended functionality - specifically the camera working.
> > > I hope all that makes sense. Please let me know if you need any
> > > further information. Any help is greatly appreciated.
> >
> > The corret files are copied to the unqualified names, and the
> > unqualified names are loaded at boot; see the comment in config.txt
>
> And do not forget to re-build the rpi-firmware package (not done
> automatically
> by buildroot, see [1], [2]) after changing the options:
>
>         make rpi-firmware-rebuild
>         make
>
> Regards,
> Peter
>
> [1] https://buildroot.org/downloads/manual/manual.html#full-rebuild
> [2] https://buildroot.org/downloads/manual/manual.html#rebuild-pkg
>
> >
> > Also, see commit 1bdc0334f, which fixed that recently on master. It was
> > backported to 2020.05.x, but not to the LTS 2020.02...
> >
> > Regards,
> > Yann E. MORIN.
> >
>
>
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