4 files changed, 51 insertions, 24 deletions
diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
index 1fd63efdfd3..ca988224dad 100644
--- a/scripts/Makefile.spl
+++ b/scripts/Makefile.spl
@@ -120,10 +120,25 @@ endif
 u-boot-spl-init := $(head-y)
 u-boot-spl-main := $(libs-y)
 ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA
-u-boot-spl-platdata := $(obj)/dts/dt-plat.o
-u-boot-spl-platdata_c := $(patsubst %.o,%.c,$(u-boot-spl-platdata))
+platdata-hdr := include/generated/dt-structs-gen.h include/generated/dt-decl.h
+platdata-inst := $(obj)/dts/dt-uclass.o $(obj)/dts/dt-device.o
+platdata-noinst := $(obj)/dts/dt-plat.o
+
+ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA_INST
+u-boot-spl-platdata := $(platdata-inst)
+u-boot-spl-old-platdata := $(platdata-noinst)
+else
+u-boot-spl-platdata := $(platdata-noinst)
+u-boot-spl-old-platdata := $(platdata-inst)
 endif
 
+# Files we need to generate
+u-boot-spl-platdata_c := $(patsubst %.o,%.c,$(u-boot-spl-platdata))
+
+# Files we won't generate and should remove
+u-boot-spl-old-platdata_c := $(patsubst %.o,%.c,$(u-boot-spl-old-platdata))
+endif  # OF_PLATDATA
+
 # Linker Script
 # First test whether there's a linker-script for the specific stage defined...
 ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),)
@@ -311,7 +326,11 @@ $(obj)/$(SPL_BIN).dtb: $(obj)/dts/dt-$(SPL_NAME).dtb FORCE
 pythonpath = PYTHONPATH=scripts/dtc/pylibfdt
 
 DTOC_ARGS := $(pythonpath) $(srctree)/tools/dtoc/dtoc \
-	-d $(obj)/$(SPL_BIN).dtb
+	-d $(obj)/$(SPL_BIN).dtb -p $(SPL_NAME)
+
+ifneq ($(CONFIG_$(SPL_TPL_)OF_PLATDATA_INST),)
+DTOC_ARGS += -i
+endif
 
 quiet_cmd_dtoc = DTOC    $@
 cmd_dtoc = $(DTOC_ARGS) -c $(obj)/dts -C include/generated all
@@ -319,18 +338,17 @@ cmd_dtoc = $(DTOC_ARGS) -c $(obj)/dts -C include/generated all
 quiet_cmd_plat = PLAT    $@
 cmd_plat = $(CC) $(c_flags) -c $< -o $(filter-out $(PHONY),$@)
 
-targets += $(u-boot-spl-platdata)
-
-$(obj)/dts/dt-%.o: $(obj)/dts/dt-%.c \
-		include/generated/dt-structs-gen.h prepare FORCE
+$(obj)/dts/dt-%.o: $(obj)/dts/dt-%.c $(platdata-hdr)
 	$(call if_changed,plat)
 
-PHONY += dts_dir
-dts_dir:
-	$(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
-
-include/generated/dt-structs-gen.h $(u-boot-spl-platdata_c) &: \
-		$(obj)/$(SPL_BIN).dtb dts_dir FORCE
+# Don't use dts_dir here, since it forces running this expensive rule every time
+$(platdata-hdr) $(u-boot-spl-platdata_c) &: $(obj)/$(SPL_BIN).dtb
+	@[ -d $(obj)/dts ] || mkdir -p $(obj)/dts
+	@# Remove old files since which ones we generate depends on the setting
+	@# of OF_PLATDATA_INST and this might change between builds. Leaving old
+	@# ones around is confusing and it is possible that switching the
+	@# setting again will use the old one instead of regenerating it.
+	@rm -f $(u-boot-spl-all-platdata_c) $(u-boot-spl-all-platdata)
 	$(call if_changed,dtoc)
 
 ifdef CONFIG_SAMSUNG
@@ -471,6 +489,10 @@ FORCE:
 $(obj)/dts/dt-$(SPL_NAME).dtb: dts/dt.dtb
 	$(Q)$(MAKE) $(build)=$(obj)/dts spl_dtbs
 
+PHONY += dts_dir
+dts_dir:
+	$(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
+
 # Declare the contents of the .PHONY variable as phony.  We keep that
 # information in a variable so we can use it in if_changed and friends.
 .PHONY: $(PHONY)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 755f4802a46..4e047586a68 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2365,6 +2365,12 @@ sub u_boot_line {
 		     "Use 'if (IS_ENABLED(CONFIG...))' instead of '#if or #ifdef' where possible\n" . $herecurr);
 	}
 
+	# prefer strl(cpy|cat) over strn(cpy|cat)
+	if ($line =~ /\bstrn(cpy|cat)\s*\(/) {
+		WARN("STRL",
+		     "strl$1 is preferred over strn$1 because it always produces a nul-terminated string\n" . $herecurr);
+	}
+
 	# use defconfig to manage CONFIG_CMD options
 	if ($line =~ /\+\s*#\s*(define|undef)\s+(CONFIG_CMD\w*)\b/) {
 		ERROR("DEFINE_CONFIG_CMD",
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index 43295eec7d4..b24fa36da0f 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -1030,7 +1030,6 @@ CONFIG_MIPS_HUGE_TLB_SUPPORT
 CONFIG_MIPS_MT_FPAFF
 CONFIG_MIRQ_EN
 CONFIG_MISC_COMMON
-CONFIG_MISC_INIT_F
 CONFIG_MIU_1BIT_INTERLEAVED
 CONFIG_MIU_2BIT_21_7_INTERLEAVED
 CONFIG_MIU_2BIT_INTERLEAVED
@@ -1077,12 +1076,9 @@ CONFIG_MTD_UBI_GLUEBI
 CONFIG_MTD_UBI_MODULE
 CONFIG_MULTI_CS
 CONFIG_MUSB_HOST
-CONFIG_MVEBU_MMC
 CONFIG_MVGBE_PORTS
 CONFIG_MVMFP_V2
 CONFIG_MVS
-CONFIG_MVSATA_IDE_USE_PORT0
-CONFIG_MVSATA_IDE_USE_PORT1
 CONFIG_MV_ETH_RXQ
 CONFIG_MV_I2C_NUM
 CONFIG_MV_I2C_REG
@@ -1343,7 +1339,6 @@ CONFIG_RESERVED_01_BASE
 CONFIG_RESERVED_02_BASE
 CONFIG_RESERVED_03_BASE
 CONFIG_RESERVED_04_BASE
-CONFIG_RESET
 CONFIG_RESET_PHY_R
 CONFIG_RESET_TO_RETRY
 CONFIG_RESET_VECTOR_ADDRESS
@@ -1629,7 +1624,6 @@ CONFIG_STV0991
 CONFIG_STV0991_HZ
 CONFIG_STV0991_HZ_CLOCK
 CONFIG_ST_SMI
-CONFIG_SUNXI_MAX_FB_SIZE
 CONFIG_SXNI855T
 CONFIG_SYSFLAGS_ADDR
 CONFIG_SYSFS
@@ -2908,7 +2902,6 @@ CONFIG_SYS_MIPS_TIMER_FREQ
 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR
 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS
 CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR
-CONFIG_SYS_MMC_BASE
 CONFIG_SYS_MMC_CD_PIN
 CONFIG_SYS_MMC_CLK_OD
 CONFIG_SYS_MMC_MAX_BLK_COUNT
@@ -3943,7 +3936,6 @@ CONFIG_VEXPRESS_EXTENDED_MEMORY_MAP
 CONFIG_VEXPRESS_ORIGINAL_MEMORY_MAP
 CONFIG_VIDEO_BCM2835
 CONFIG_VIDEO_BMP_LOGO
-CONFIG_VIDEO_CORALP
 CONFIG_VIDEO_DA8XX
 CONFIG_VIDEO_FONT_4X6
 CONFIG_VIDEO_LCD_I2C_BUS
diff --git a/scripts/dtc/pylibfdt/Makefile b/scripts/dtc/pylibfdt/Makefile
index 80b6ad2ae71..493995e3038 100644
--- a/scripts/dtc/pylibfdt/Makefile
+++ b/scripts/dtc/pylibfdt/Makefile
@@ -23,12 +23,19 @@ quiet_cmd_pymod = PYMOD   $@
 		SWIG_OPTS="-I$(LIBFDT_srcdir) -I$(LIBFDT_srcdir)/.." \
 		$(PYTHON3) $< --quiet build_ext --inplace
 
-$(obj)/_libfdt.so: $(src)/setup.py $(PYLIBFDT_srcs) FORCE
+rebuild: $(src)/setup.py $(PYLIBFDT_srcs)
 	@# Remove the library since otherwise Python doesn't seem to regenerate
 	@# the libfdt.py file if it is missing.
-	rm -f $(obj)/_libfdt*.so
+	@rm -f $(obj)/_libfdt*.so
 	$(call if_changed,pymod)
+	@# Rename the file to _libfdt.so so this Makefile doesn't run every time
+	@if [ ! -e $(obj)/_libfdt.so ]; then \
+		mv $(obj)/_libfdt*.so $(obj)/_libfdt.so; \
+	fi
 
-always += _libfdt.so
+$(obj)/_libfdt.so $(obj)/libfdt.py &: rebuild
+	@:
+
+always += _libfdt.so libfdt.py
 
 clean-files += libfdt.i _libfdt.so libfdt.py libfdt_wrap.c