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authorGravatar Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2015-10-03 20:44:13 +0100
committerGravatar Peter Korsgaard <peter@korsgaard.com>2015-10-04 20:17:35 +0200
commit76f2230d2c3b99a4ade2590e7dfc0feee312a5f3 (patch)
tree943d2f298d12ae3d1061c1afe64cf38a6821626b /boot
parent5774f07d43c8694b9640e67db771676af07c430b (diff)
downloadbuildroot-76f2230d2c3b99a4ade2590e7dfc0feee312a5f3.tar.gz
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u-boot: add an option to indicate that DTC is needed
Some U-Boot configurations require the Device Tree compiler to be available, so we need to depend on host-dtc (example configuration: zynq_zed). However, we don't want to build it unconditionally, since the vast majority of U-Boot configurations don't need it (and host-dtc itself has a bunch of dependencies). So, we simply add a Config.in option that allows users to indicate whether their U-Boot needs DTC or not, and depend on host-dtc if this option is enabled. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Diffstat (limited to 'boot')
-rw-r--r--boot/uboot/Config.in7
-rw-r--r--boot/uboot/uboot.mk4
2 files changed, 11 insertions, 0 deletions
diff --git a/boot/uboot/Config.in b/boot/uboot/Config.in
index be51642918..8643dab36a 100644
--- a/boot/uboot/Config.in
+++ b/boot/uboot/Config.in
@@ -139,6 +139,13 @@ config BR2_TARGET_UBOOT_CUSTOM_CONFIG_FILE
Path to the U-Boot configuration file.
endif
+config BR2_TARGET_UBOOT_NEEDS_DTC
+ bool "U-Boot needs dtc"
+ select BR2_PACKAGE_HOST_DTC
+ help
+ Select this option if your U-Boot board configuration
+ requires the Device Tree compiler to be available.
+
choice
prompt "U-Boot binary format"
default BR2_TARGET_UBOOT_FORMAT_BIN
diff --git a/boot/uboot/uboot.mk b/boot/uboot/uboot.mk
index 74940788ce..eee0dba23b 100644
--- a/boot/uboot/uboot.mk
+++ b/boot/uboot/uboot.mk
@@ -77,6 +77,10 @@ UBOOT_MAKE_OPTS += \
CROSS_COMPILE="$(TARGET_CROSS)" \
ARCH=$(UBOOT_ARCH)
+ifeq ($(BR2_TARGET_UBOOT_NEEDS_DTC),y)
+UBOOT_DEPENDENCIES += host-dtc
+endif
+
# Helper function to fill the U-Boot config.h file.
# Argument 1: option name
# Argument 2: option value