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authorRob Herring <robh@kernel.org>2015-10-06 17:57:33 -0500
committerRob Herring <robh@kernel.org>2015-10-27 16:12:13 -0500
commit1b7c501b51a8c851ff82769cbe905ef19cb70239 (patch)
tree3085fd663e1a4704fe210298ffe3786609c8210c /drivers/of/Kconfig
parent9ffecb10283508260936b96022d4ee43a7798b4c (diff)
downloadlinux-1b7c501b51a8c851ff82769cbe905ef19cb70239.tar.gz
of: add config option to enable building of all dtbs
Enable building all dtb files when CONFIG_OF_ALL_DTBS is enabled. The dtbs
are not really dependent on a platform being enabled or any other kernel
config, so for testing coverage it is convenient to build all of the dtbs.

In order to only build dtbs, this option can be used by creating an
allno.config file containing:
CONFIG_COMPILE_TEST=y
CONFIG_OF=y
CONFIG_OF_ALL_DTBS=y

And then running:
make KCONFIG_ALLCONFIG=1 allnoconfig
make dtbs

While building the dtbs themselves don't need a cross compiler, the
scripts dependency does need one. This can be hacked around by
commenting out "subdir-y += mod" in scripts/Makefile.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Grant Likely <grant.likely@linaro.org>
Diffstat (limited to 'drivers/of/Kconfig')
-rw-r--r--drivers/of/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index 59bb8556e43a..e2a48415d969 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -23,6 +23,16 @@ config OF_UNITTEST
 
 	  If unsure, say N here, but this option is safe to enable.
 
+config OF_ALL_DTBS
+	bool "Build all Device Tree Blobs"
+	depends on COMPILE_TEST
+	select DTC
+	help
+	  This option builds all possible Device Tree Blobs (DTBs) for the
+	  current architecture.
+
+	  If unsure, say N here, but this option is safe to enable.
+
 config OF_FLATTREE
 	bool
 	select DTC