[PATCH v3 2/2] Makefile: Only build dtc if needed
trini at konsulko.com
Wed Oct 20 02:46:03 CEST 2021
On Wed, Sep 22, 2021 at 11:34:44AM -0600, Simon Glass wrote:
> At present U-Boot always builds dtc if CONFIG_OF_CONTROL is defined, even
> when DTC is provided. The built dtc is not actually used, so this is a
> waste of time.
> Update the Makefile logic to build dtc only if one is not provided to the
> build with the DTC variable. Add documentation to explain this.
> This saves about 3.5 seconds of elapsed time on a clean build of
> sandbox_spl for me.
> Signed-off-by: Simon Glass <sjg at chromium.org>
Applied to u-boot/master, thanks!
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