xxvethernet: Modify makefile to support parallel make execution

Modify the driver makefile to support the parallel make execution.
This will reduce the compile time drastically as it will only compile
the files those have timestamp modified.

Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>

Acked-for-series: Harini Katakam <harini.katakam@xilinx.com>

XilinxProcessorIPLib/drivers/xxvethernet/src/Makefile

@@ -1,3 +1,4 @@
+DRIVER_LIB_VERSION = 1.0
 COMPILER=
 ARCHIVER=
 CP=cp
@@ -8,33 +9,31 @@ LIB=libxil.a
 CC_FLAGS = $(COMPILER_FLAGS)
 ECC_FLAGS = $(EXTRA_COMPILER_FLAGS)
 
-RELEASEDIR=../../../lib
-INCLUDEDIR=../../../include
-INCLUDES=-I./. -I${INCLUDEDIR}
+RELEASEDIR=../../../lib/
+INCLUDEDIR=../../../include/
+INCLUDES=-I./. -I$(INCLUDEDIR)
 
-OUTS = *.o
+SRCFILES:=$(wildcard *.c)
 
-LIBSOURCES:=*.c
-INCLUDEFILES:=*.h
+OBJECTS = $(addprefix $(RELEASEDIR), $(addsuffix .o, $(basename $(wildcard *.c))))
 
-OBJECTS =	$(addsuffix .o, $(basename $(wildcard *.c)))
+libs: $(OBJECTS)
 
-libs: banner xxvethernet_libs clean
+DEPFILES := $(SRCFILES:%.c=$(RELEASEDIR)%.d)
 
-%.o: %.c
-	${COMPILER} $(CC_FLAGS) $(ECC_FLAGS) $(INCLUDES) -o $@ $<
+include $(wildcard $(DEPFILES))
 
-banner:
-	echo "Compiling xxvethernet"
+include $(wildcard ../../../../dep.mk)
 
-xxvethernet_libs: ${OBJECTS}
-	$(ARCHIVER) -r ${RELEASEDIR}/${LIB} ${OBJECTS}
+$(RELEASEDIR)%.o: %.c
+	${COMPILER} $(CC_FLAGS) $(ECC_FLAGS) $(INCLUDES) $(DEPENDENCY_FLAGS) $(realpath $<) -o $@
 
 .PHONY: include
-include: xxvethernet_includes
+include: $(addprefix $(INCLUDEDIR),$(wildcard *.h))
 
-xxvethernet_includes:
-	${CP} ${INCLUDEFILES} ${INCLUDEDIR}
+$(INCLUDEDIR)%.h: %.h
+	$(CP) $< $@
 
 clean:
 	rm -rf ${OBJECTS}
+	rm -rf $(DEPFILES)