[PATCH] arm: xilinx: Fill DEVICE_TREE directly in Makefiles

[Michal Simek]

DEVICE_TREE variable is not exported from dts/Makefile that's why it is
necessary to setup directly before use.

Fixes: 312f2c5b14fa ("arm: xilinx: Use device tree which can be passed on cmd line")
Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

It was found by more intensive testing.

Another option would be to move DEVICE_TREE setup from dts/Makefile to
Makefile but I didn't find the right place for it.

---
 board/xilinx/zynq/Makefile   | 5 +++++
 board/xilinx/zynqmp/Makefile | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/board/xilinx/zynq/Makefile b/board/xilinx/zynq/Makefile
index 6a2acee108fa..096a7aceb939 100644
--- a/board/xilinx/zynq/Makefile
+++ b/board/xilinx/zynq/Makefile
@@ -13,6 +13,11 @@ spl/board/xilinx/zynq/ps_init_gpl.o board/xilinx/zynq/ps_init_gpl.o: $(PS_INIT_F
 	$(CC) $(c_flags) -I $(srctree)/$(src) -c -o $@ $^
 endif
 
+DEVICE_TREE ?= $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%)
+ifeq ($(DEVICE_TREE),)
+DEVICE_TREE := unset
+endif
+
 ifeq ($(init-objs),)
 hw-platform-y :=$(shell echo $(DEVICE_TREE))
 init-objs := $(if $(wildcard $(srctree)/$(src)/$(hw-platform-y)/ps7_init_gpl.c),\
diff --git a/board/xilinx/zynqmp/Makefile b/board/xilinx/zynqmp/Makefile
index 174f4ed24be3..398c6aaa452a 100644
--- a/board/xilinx/zynqmp/Makefile
+++ b/board/xilinx/zynqmp/Makefile
@@ -13,6 +13,11 @@ spl/board/xilinx/zynqmp/ps_init_gpl.o board/xilinx/zynqmp/ps_init_gpl.o: $(PS_IN
 	$(CC) $(c_flags) -I $(srctree)/$(src) -c -o $@ $^
 endif
 
+DEVICE_TREE ?= $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%)
+ifeq ($(DEVICE_TREE),)
+DEVICE_TREE := unset
+endif
+
 ifeq ($(init-objs),)
 hw-platform-y :=$(shell echo $(DEVICE_TREE))
 init-objs := $(if $(wildcard $(srctree)/$(src)/$(hw-platform-y)/psu_init_gpl.c),\
-- 
2.25.0