plat: marvell: armada: Add missing FORCE, .PHONY and clean targets

FORCE target is used as a dependency for other file targets which needs to
be always rebuilt. .PHONY target is standard Makefile target which specify
non-file targets and therefore needs to be always rebuilt.

Targets clean, realclean and distclean are .PHONY targets used to remove
built files. Correctly set that mrvl_clean target is prerequisite for these
clean targets to ensure that built files are removed.

Finally this change with usage of FORCE target allows to remove mrvl_clean
hack from the prerequisites of a8k ${DOIMAGETOOL} target which was used
just to ensure that ${DOIMAGETOOL} is always rebuilt via make subprocess.

Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: I2fa8971244b43f101d846fc433ef7b0b6f139c92

plat/marvell/armada/a3k/common/a3700_common.mk

@@ -120,11 +120,12 @@ TIMBLDUARTARGS		:= $(MARVELL_SECURE_BOOT) UART $(IMAGESPATH) $(DOIMAGEPATH) $(CL
 				$(DDR_TOPOLOGY) 0 0 $(DOIMAGE_CFG) $(TIMNCFG) $(TIMNSIG) 0
 DOIMAGE_FLAGS		:= -r $(DOIMAGE_CFG) -v -D
 
-$(DOIMAGETOOL):
+$(DOIMAGETOOL): FORCE
 	$(if $(value CRYPTOPP_PATH),,$(error "Platform '${PLAT}' for WTP image tool requires CRYPTOPP_PATH. Please set CRYPTOPP_PATH to point to the right directory"))
 	$(Q)$(MAKE) --no-print-directory -C $(CRYPTOPP_PATH) -f GNUmakefile
 	$(Q)$(MAKE) --no-print-directory -C $(DOIMAGEPATH)/wtptp/src/TBB_Linux -f TBB_linux.mak LIBDIR=$(CRYPTOPP_PATH)
 
+.PHONY: mrvl_flash
 mrvl_flash: ${BUILD_PLAT}/${BOOT_IMAGE} ${DOIMAGETOOL}
 	$(if $(value MV_DDR_PATH),,$(error "Platform '${PLAT}' for target '$@' requires MV_DDR_PATH. Please set MV_DDR_PATH to point to the right directory"))
 	${Q}${MAKE} --no-print-directory -C ${DOIMAGEPATH} WTMI_IMG=$(WTMI_IMG) MV_DDR_PATH=$(MV_DDR_PATH)
@@ -181,9 +182,23 @@ ifeq ($(MARVELL_SECURE_BOOT),1)
 endif
 	@find . -name "*.txt" | grep -E "CSK[[:alnum:]]_KeyHash.txt|Tim_msg.txt|TIMHash.txt" | xargs rm -f
 
+clean realclean distclean: mrvl_clean
+
+.PHONY: mrvl_clean
+mrvl_clean:
+	-$(Q)$(MAKE) --no-print-directory -C $(DOIMAGEPATH) MV_DDR_PATH=$(MV_DDR_PATH) clean
+	-$(Q)$(MAKE) --no-print-directory -C $(DOIMAGEPATH)/wtptp/src/TBB_Linux -f TBB_linux.mak LIBDIR=$(CRYPTOPP_PATH) clean
+ifdef CRYPTOPP_PATH
+	-$(Q)$(MAKE) --no-print-directory -C $(CRYPTOPP_PATH) -f GNUmakefile clean
+endif
+
 else # ${WTP}
 
+.PHONY: mrvl_flash
 mrvl_flash:
 	$(error "Platform '${PLAT}' for target '$@' requires WTP. Please set WTP to point to the right directory")
 
 endif # ${WTP}
+
+.PHONY: FORCE
+FORCE:;

plat/marvell/armada/a8k/common/a8k_common.mk

@@ -152,14 +152,20 @@ BLE_PATH	?=  $(PLAT_COMMON_BASE)/ble
 include ${BLE_PATH}/ble.mk
 $(eval $(call MAKE_BL,e))
 
+clean realclean distclean: mrvl_clean
+
+.PHONY: mrvl_clean
 mrvl_clean:
 	@echo "  Doimage CLEAN"
 	${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${DOIMAGEPATH} clean
 
-${DOIMAGETOOL}: mrvl_clean
+${DOIMAGETOOL}: FORCE
 	@$(DOIMAGE_LIBS_CHECK)
 	${Q}${MAKE} --no-print-directory -C ${DOIMAGEPATH}
 
+.PHONY: mrvl_flash
 mrvl_flash: ${BUILD_PLAT}/${BOOT_IMAGE} ${DOIMAGETOOL}
 	${DOIMAGETOOL} ${DOIMAGE_FLAGS} ${BUILD_PLAT}/${BOOT_IMAGE} ${BUILD_PLAT}/${FLASH_IMAGE}
 
+.PHONY: FORCE
+FORCE:;

plat/marvell/armada/common/marvell_common.mk

@@ -93,4 +93,5 @@ $(BUILD_PLAT)/$(BOOT_IMAGE): $(BUILD_PLAT)/bl1.bin $(BUILD_PLAT)/$(FIP_NAME)
 	@truncate -s %4 $(BUILD_PLAT)/$(BOOT_IMAGE) || { rm -f $(BUILD_PLAT)/$(BOOT_IMAGE); false; }
 	@echo "Built $@ successfully"
 
+.PHONY: mrvl_bootimage
 mrvl_bootimage: $(BUILD_PLAT)/$(BOOT_IMAGE)