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authorSimon Glass <sjg@chromium.org>2021-09-22 11:34:44 -0600
committerTom Rini <trini@konsulko.com>2021-10-19 11:23:07 -0400
commit93b196532254366f653b4d763f69e49ff193f06c (patch)
treef0768d3161c33bd110bd30359517b2ed9fec429d /dts
parentd7faa082a57eeeff9b4bbcc45d3dfed747d99a70 (diff)
Makefile: Only build dtc if needed
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@chromium.org>
Diffstat (limited to 'dts')
-rw-r--r--dts/Kconfig4
1 files changed, 0 insertions, 4 deletions
diff --git a/dts/Kconfig b/dts/Kconfig
index fc4130545a..90c7a1c5f4 100644
--- a/dts/Kconfig
+++ b/dts/Kconfig
@@ -5,9 +5,6 @@
config SUPPORT_OF_CONTROL
bool
-config DTC
- bool
-
config PYLIBFDT
bool
@@ -42,7 +39,6 @@ menu "Device Tree Control"
config OF_CONTROL
bool "Run-time configuration via Device Tree"
- select DTC
select OF_LIBFDT if !OF_PLATDATA
select OF_REAL if !OF_PLATDATA
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