[U-Boot] [PATCH 4/5] dtc: Switch to building and using our own dtc unless provided

Tom Rini
2017-09-24T14:27:01Z

This makes us act like the Linux Kernel does and allow for dtc to be
provided externally but otherwise we use the version of dtc that is
included in the sources. This in turn means that we can drop the
checkdtc logic. We select DTC in the cases where we will need the dtc
tool provided.

Signed-off-by: Tom Rini <trini@konsulko.com>
---
.travis.yml | 6 ++----
Makefile | 10 ++--------
dts/Kconfig | 4 ++++
scripts/Makefile | 1 +
4 files changed, 9 insertions(+), 12 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 9dfd016da000..00b2a73a5eff 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -26,11 +26,9 @@ addons:
- grub-efi-ia32-bin
- rpm2cpio
- wget
+ - device-tree-compiler

install:
- # install latest device tree compiler
- - git clone --depth=1 -b v1.4.3 git://git.kernel.org/pub/scm/utils/dtc/dtc.git /tmp/dtc
- - make -j4 -C /tmp/dtc
# Clone uboot-test-hooks
- git clone --depth=1 git://github.com/swarren/uboot-test-hooks.git /tmp/uboot-test-hooks
- ln -s travis-ci /tmp/uboot-test-hooks/bin/`hostname`
@@ -51,7 +49,7 @@ install:

env:
global:
- - PATH=/tmp/dtc:/tmp/qemu-install/bin:/tmp/uboot-test-hooks/bin:/usr/bin:/bin
+ - PATH=/tmp/qemu-install/bin:/tmp/uboot-test-hooks/bin:/usr/bin:/bin
- PYTHONPATH=/tmp/uboot-test-hooks/py/travis-ci
- BUILD_DIR=build
- HOSTCC="cc"
diff --git a/Makefile b/Makefile
index e058e9854b7b..b7d5cbb3f9ad 100644
--- a/Makefile
+++ b/Makefile
@@ -349,7 +349,7 @@ OBJDUMP = $(CROSS_COMPILE)objdump
AWK = awk
PERL = perl
PYTHON ?= python
-DTC ?= dtc
+DTC ?= $(objtree)/scripts/dtc/dtc
CHECK = sparse

CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
@@ -872,7 +872,7 @@ endif
PHONY += dtbs
dtbs: dts/dt.dtb
@:
-dts/dt.dtb: checkdtc u-boot
+dts/dt.dtb: u-boot
$(Q)$(MAKE) $(build)=dts dtbs

quiet_cmd_copy = COPY $@
@@ -1447,12 +1447,6 @@ SYSTEM_MAP = \
System.map: u-boot
@$(call SYSTEM_MAP,$<) > $@

-checkdtc:
- @if test $(call dtc-version) -lt 010403; then \
- echo '*** Your dtc is too old, please upgrade to dtc 1.4.3 or newer'; \
- false; \
- fi
-
#########################################################################

# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
diff --git a/dts/Kconfig b/dts/Kconfig
index b4b7ddc1444a..44fc9fe36dd7 100644
--- a/dts/Kconfig
+++ b/dts/Kconfig
@@ -5,11 +5,15 @@
config SUPPORT_OF_CONTROL
bool

+config DTC
+ bool
+
menu "Device Tree Control"
depends on SUPPORT_OF_CONTROL

config OF_CONTROL
bool "Run-time configuration via Device Tree"
+ select DTC
help
This feature provides for run-time configuration of U-Boot
via a flattened device tree.
diff --git a/scripts/Makefile b/scripts/Makefile
index 3e10c16d59fd..9d55241463d4 100644
--- a/scripts/Makefile
+++ b/scripts/Makefile
@@ -21,3 +21,4 @@ build_docproc: $(obj)/docproc

# Let clean descend into subdirs
subdir- += basic kconfig
+subdir-$(CONFIG_DTC) += dtc
--
1.9.1