device-tree.bb: Provide override device tree directory

Provide a way to override device tree work directory and include file
directory, this might be particalarly helpful while using this recipes
in other layers, for example in meta-xilinx-tools to override workdir
and point it to dtg based build directory

Reviewed-by: Nathan Rossi <nathan@nathanrossi.com>
Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>

1 files changed, 9 insertions, 6 deletions

diff --git a/recipes-bsp/device-tree/device-tree.bb b/recipes-bsp/device-tree/device-tree.bb
index 27e1017f..5ecad6bc 100644
--- a/recipes-bsp/device-tree/device-tree.bb
+++ b/recipes-bsp/device-tree/device-tree.bb
@@ -34,14 +34,17 @@ KERNEL_DTS_INCLUDE_append_zynqmp = " \
                 ${STAGING_KERNEL_DIR}/arch/${ARCH}/boot/dts/xilinx \
                 "
 
+DTS_FILES_PATH ?= "${S}"
+DTS_INCLUDE ?= "${DTS_FILES_PATH} ${KERNEL_DTS_INCLUDE}"
+
 DEVICETREE_FLAGS ?= " \
-                -R 8 -p 0x3000 -b 0 -i ${S} \
-                ${@' '.join(['-i %s' % i for i in d.getVar('KERNEL_DTS_INCLUDE', True).split()])} \
-                "
+                -R 8 -p ${DT_PADDING_SIZE} -b 0 \
+                ${@' '.join(['-i %s' % i for i in d.getVar('DTS_INCLUDE', True).split()])} \
+               "
 DEVICETREE_OFLAGS ?= "-@ -H epapr"
 DEVICETREE_PP_FLAGS ?= " \
-                -nostdinc -Ulinux -x assembler-with-cpp -I${S} \
-                ${@' '.join(['-I%s' % i for i in d.getVar('KERNEL_DTS_INCLUDE', True).split()])} \
+                -nostdinc -Ulinux -x assembler-with-cpp \
+                ${@' '.join(['-I%s' % i for i in d.getVar('DTS_INCLUDE', True).split()])} \
                 "
 
 python () {
@@ -51,7 +54,7 @@ python () {
 }
 
 do_compile() {
-        for DTS_FILE in ${S}/*.dts; do
+        for DTS_FILE in ${DTS_FILES_PATH}/*.dts; do
                 DTS_NAME=`basename -s .dts ${DTS_FILE}`
                 ${BUILD_CPP} ${DEVICETREE_PP_FLAGS} -o `basename ${DTS_FILE}`.pp ${DTS_FILE}