Date: Sun, 10 Apr 2022 17:15:30 -0300 From: Mitchell Horne <mhorne@freebsd.org> To: Matteo Riondato <matteo@freebsd.org>, freebsd-arm@freebsd.org Subject: Re: [armv7] dtb specified with FDT_DTS_FILE in kernconf not built when using release.sh Message-ID: <9b07e4bd-2b77-bab3-6844-e2e2873f582d@freebsd.org> In-Reply-To: <20220410195816.k6qvkagroudas634@host-ubertino-mac-24f5a28a9493.wired.10net.amherst.edu> References: <20220410195816.k6qvkagroudas634@host-ubertino-mac-24f5a28a9493.wired.10net.amherst.edu>
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On 4/10/22 16:58, Matteo Riondato wrote:
> Hi,
>
> I'm trying to cross-build (from amd64) a custom -CURRENT armv7 image for
> my beaglebone enhanced using the release(7) method with a custom
> release.conf script, which I wrote starting from release/arm/GENERICSD.
>
> The only customization that I want to include is to use the appropriate
> dtb compiled from the dts files for this board. I thought I could
> achieve this goal by having "makeoptions FDT_DTS_FILE=..." in my
> kernconf, but the dtb does not seem to be compiled in the chrootdir, not
> to say installed, the image.
>
> The kernconf is the following:
>
> include GENERIC
> include "../../conf/std.nodebug"
> ident GENERIC-ND-BBE
> makeoptions FDT_DTS_FILE=am335x-sancloud-bbe.dts
>
I believe this option is used to embed a static DTB in the kernel
binary, not to have it compiled as part of the build.
What you most likely want instead is:
makeoptions MODULES_EXTRA+="dtb/am335x"
This line is already included as part of the GENERIC config. However,
you will need to modify sys/modules/dtb/am335x/Makefile to include the
sancloud variant that you are interested in.
Cheers,
Mitchell
> My release.conf script has a custom buildenv_setup() function to cp the
> above kernconf to the /usr/src/sys/arm/conf/ directory of the chroot,
> and the dts to /usr/src/sys/dts/arm of the chroot (from what I could
> infer, that is the correct path for the dts, but please let me know if
> that's not the case).
>
> I don't see the compiled dtb anywhere in the chroot, nor an error
> message or a warning that it failed to build, and it is not in the image
> either.
>
> What am I missing?
>
> Thanks,
> Matteo
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