On Mon, Apr 27, 2020 at 04:25:10PM -0600, Simon Glass wrote: > Hi Tom, > > On Mon, 27 Apr 2020 at 12:59, Tom Rini <tr...@konsulko.com> wrote: > > > > On Sun, Apr 26, 2020 at 06:34:48PM -0600, Simon Glass wrote: > > > Hi Tom, > > > > > > On Sat, 26 Jan 2019 at 20:51, Tom Rini <tr...@konsulko.com> wrote: > > > > > > > > On Tue, Nov 13, 2018 at 03:43:07PM -0700, Simon Glass wrote: > > > > > > > > > At present U-Boot always builds dtc if CONFIG_OF_CONTROL is defined. > > > > > This > > > > > is wasteful when the system already has a suitable version available. > > > > > > > > > > Update the Makefile logic to build dtc only if the version available > > > > > is > > > > > too old. > > > > > > > > > > This saves about 3 seconds of CPU time on a clean build for me. > > > > > > > > > > Signed-off-by: Simon Glass <s...@chromium.org> > > > > > Reviewed-by: Marek Vasut <marek.va...@gmail.com> > > > > > > > > In the case of new enough host dtc this then fails on sandbox_spl, > > > > chromebook_minnie and others where we need to build > > > > spl/dts/dt-platdata.c with a python import error over lacking _libfdt. > > > > > > I'm not sure if it has been long enough, but have the packages been > > > updated to include pylibfdt? > > > > > > I'm sending a new version of this patch that checks for that. > > > > I honestly don't know how far behind distributions lag here and then in > > turn how old something is before we say "sorry, you can't build there > > easily". > > I think we should be able to deal with this with respect to dtc at > least, since we can always build it if needed. We just need to get the > conditions right.
To keep the threads in sync, I'm not sure it's worth diverging from the Linux kernel build in this regard. -- Tom
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