This patch provides a support to build the user specified dts.
Signed-off-by: Jagannadha Sutradharudu Teki jaganna@xilinx.com --- Changes for v2: - Update the logic for not giving an error if DEVICE_TREE defined - Documented the build steps doc/README.fdt-control | 8 ++++++++ dts/Makefile | 2 ++ 2 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/doc/README.fdt-control b/doc/README.fdt-control index 85bda03..8352835 100644 --- a/doc/README.fdt-control +++ b/doc/README.fdt-control @@ -156,6 +156,14 @@ To use this, put something like this in your board header file:
#define CONFIG_EXTRA_ENV_SETTINGS "fdtcontroladdr=10000\0"
+Build: + +After board configuration is done, fdt supported u-boot can be build in two ways: +1) build the default dts which is defined from CONFIG_DEFAULT_DEVICE_TREE + $ make +2) build the user specified dts file + $ make DEVICE_TREE=<dts-file-name> +
Limitations ----------- diff --git a/dts/Makefile b/dts/Makefile index 785104e..01364d7 100644 --- a/dts/Makefile +++ b/dts/Makefile @@ -27,9 +27,11 @@ include $(TOPDIR)/config.mk
LIB = $(obj)libdts.o
+ifeq ($(DEVICE_TREE),) $(if $(CONFIG_DEFAULT_DEVICE_TREE),,\ $(error Please define CONFIG_DEFAULT_DEVICE_TREE in your board header file)) DEVICE_TREE = $(subst ",,$(CONFIG_DEFAULT_DEVICE_TREE)) +endif
$(if $(CONFIG_ARCH_DEVICE_TREE),,\ $(error Your architecture does not have device tree support enabled. \