On Mon, 1 Nov 2021 at 04:48, Peter Maydell <email@example.com> wrote:
> On Tue, 26 Oct 2021 at 01:33, Simon Glass <firstname.lastname@example.org> wrote:
> > Add this file, generated from qemu, so there is a reference devicetree
> > in the U-Boot tree.
> > Signed-off-by: Simon Glass <email@example.com>
> Note that the dtb you get from QEMU is only guaranteed to work if:
> 1) you run it on the exact same QEMU version you generated it with
> 2) you pass QEMU the exact same command line arguments you used
> when you generated it
Yes, I certainly understand that. In general this is not safe, but in
practice it works well enough for development and CI.
You recognize that you hijack a product directory with development hack facility. There is a test directory to keep things clear. There can be a dev-dts or something similar for Dev time tools.
I have only seen push back on those fake dts files in the dts directory: I guess that unless someone strongly favors a continuation of the discussion, you may consider re-shaping the proposal to address concerns.
I am able to use
QEMU versions that differ by two years, partly because I am not trying
to do anything clever.
I have sent a patch to add an indication of where the devicetree came
from, to help with visibility on this.