apm821xx: switch over from DTB_SIZE to DEVICE_DTC_FLAGS

DEVICE_DTC_FLAGS is more flexible and can be used in
place of APM821xx own DTB_SIZE.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
(cherry picked from commit a5fc132aa3)

target/linux/apm821xx/image/Makefile

@@ -3,14 +3,12 @@
 include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/image.mk
 
-DEVICE_VARS += DTB_SIZE
-
 define Build/boot-img
 	$(RM) -rf $@.bootdir
 	mkdir -p $@.bootdir/boot
 
 	$(CP) $@.scr $@.bootdir/boot/boot.scr
-	$(CP) $(IMAGE_KERNEL).dtb $@.bootdir/boot/$(DEVICE_DTB)
+	$(CP) $(KDIR)/image-$(firstword $(DEVICE_DTS)).dtb $@.bootdir/boot/$(DEVICE_DTB)
 	$(CP) $(IMAGE_KERNEL) $@.bootdir/boot/uImage
 
 	genext2fs --block-size $(BLOCKSIZE:%k=%Ki) \
@@ -28,12 +26,8 @@ define Build/boot-script
 		$@.scr
 endef
 
-define Build/dtb
-	$(call Image/BuildDTB,../dts/$(DEVICE_DTS).dts,$@.dtb,,--space $(DTB_SIZE))
-endef
-
 define Build/export-dtb
-	cp $(IMAGE_KERNEL).dtb $@
+	cp $(KDIR)/image-$(firstword $(DEVICE_DTS)).dtb $@
 endef
 
 define Build/MuImage-initramfs
@@ -58,15 +52,15 @@ define Build/MuImage-initramfs
 	# part of the legacy multi image. Since we need to put the
 	# device tree stuff into part 3.
 
-	-$(STAGING_DIR_HOST)/bin/mkimage -A $(LINUX_KARCH) -O linux -T multi \
-		-C $(1) -a $(KERNEL_LOADADDR) -e $(KERNEL_ENTRY) \
-		-n '$(BOARD_NAME) initramfs' -d $@:$@.fakerd:$@.dtb $@.new
+	-$(STAGING_DIR_HOST)/bin/mkimage -A $(LINUX_KARCH) -O linux -T multi -C $(1) \
+		-a $(KERNEL_LOADADDR) -e $(KERNEL_ENTRY) -n '$(BOARD_NAME) initramfs' \
+		-d $@:$@.fakerd:$(KDIR)/image-$(firstword $(DEVICE_DTS)).dtb $@.new
 	mv $@.new $@
 	rm -rf $@.fakerd
 endef
 
 define Build/prepend-dtb
-	cat "$@.dtb.uimage" "$@" > "$@.new"
+	cat "$(KDIR)/image-$(firstword $(DEVICE_DTS)).dtb" "$@" > "$@.new"
 	mv "$@.new" "$@"
 endef
 

target/linux/apm821xx/image/nand.mk

@@ -6,15 +6,6 @@ define Build/create-uImage-dtb
 		-d "$@.dtb" "$@.dtb.uimage"
 endef
 
-define Build/MerakiAdd-dtb
-	$(call Image/BuildDTB,../dts/$(DEVICE_DTS).dts,$@.dtb)
-	( \
-		dd if=$@.dtb bs=$(DTB_SIZE) conv=sync; \
-		cat $@ ; \
-	) > $@.new
-	@mv $@.new $@
-endef
-
 define Build/meraki-header
 	-$(STAGING_DIR_HOST)/bin/mkmerakifw \
 		-B $(BOARD_NAME) -s \
@@ -30,10 +21,10 @@ define Device/meraki_mr24
   DEVICE_PACKAGES := kmod-spi-gpio -swconfig
   BOARD_NAME := mr24
   IMAGES := sysupgrade.bin
-  DTB_SIZE := 64512
+  DEVICE_DTC_FLAGS := --space 64512
   IMAGE_SIZE := 8191k
-  KERNEL := kernel-bin | lzma | uImage lzma | MerakiAdd-dtb | meraki-header
-  KERNEL_INITRAMFS := kernel-bin | lzma | dtb | MuImage-initramfs lzma
+  KERNEL := kernel-bin | lzma | uImage lzma | prepend-dtb | meraki-header
+  KERNEL_INITRAMFS := kernel-bin | lzma | MuImage-initramfs lzma
   IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
   UBINIZE_OPTS := -E 5
   SUPPORTED_DEVICES += mr24
@@ -49,9 +40,9 @@ define Device/meraki_mx60
 		     kmod-usb-storage block-mount
   BLOCKSIZE := 128k
   IMAGES := sysupgrade.bin
-  DTB_SIZE := 20480
+  DEVICE_DTC_FLAGS := --space 20480
   IMAGE_SIZE := 1021m
-  KERNEL := kernel-bin | libdeflate-gzip | dtb | MuImage-initramfs gzip
+  KERNEL := kernel-bin | libdeflate-gzip | MuImage-initramfs gzip
   IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
   UBINIZE_OPTS := -E 5
   DEVICE_COMPAT_VERSION := 2.0
@@ -66,11 +57,11 @@ define Device/netgear_wndap6x0
   SUBPAGESIZE := 256
   PAGESIZE := 512
   BLOCKSIZE := 16k
-  DTB_SIZE := 32768
+  DEVICE_DTC_FLAGS := --space 32768
   IMAGE_SIZE := 27392k
   IMAGES := sysupgrade.bin factory.img
   KERNEL_SIZE := 6080k
-  KERNEL := dtb | kernel-bin | libdeflate-gzip | MuImage-initramfs gzip
+  KERNEL := kernel-bin | libdeflate-gzip | MuImage-initramfs gzip
   IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
   IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi
   UBINIZE_OPTS := -E 5
@@ -105,7 +96,7 @@ define Device/netgear_wndr4700
   PAGESIZE := 2048
   SUBPAGESIZE := 512
   BLOCKSIZE := 128k
-  DTB_SIZE := 131008
+  DEVICE_DTC_FLAGS := --space 131008
   IMAGE_SIZE := 24960k
   IMAGES := factory.img sysupgrade.bin
   ARTIFACTS := device-tree.dtb
@@ -113,8 +104,8 @@ define Device/netgear_wndr4700
   # append a fake/empty rootfs to fool netgear's uboot
   # CHECK_DNI_FIRMWARE_ROOTFS_INTEGRITY in do_chk_dniimg()
   KERNEL := kernel-bin | lzma -d16 | uImage lzma | pad-offset $$(BLOCKSIZE) 64 | \
-	    append-uImage-fakehdr filesystem | dtb | create-uImage-dtb | prepend-dtb
-  KERNEL_INITRAMFS := kernel-bin | libdeflate-gzip | dtb | MuImage-initramfs gzip
+	    append-uImage-fakehdr filesystem | create-uImage-dtb | prepend-dtb
+  KERNEL_INITRAMFS := kernel-bin | libdeflate-gzip | MuImage-initramfs gzip
   IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | \
 		       netgear-dni | check-size
   IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata

target/linux/apm821xx/image/sata.mk

@@ -11,9 +11,9 @@ define Device/wd_mybooklive
   DEVICE_PACKAGES := kmod-usb-dwc2 kmod-usb-ledtrig-usbport kmod-usb-storage kmod-fs-vfat wpad-basic-mbedtls
   SUPPORTED_DEVICES += mbl wd,mybooklive-duo
   BLOCKSIZE := 1k
-  DTB_SIZE := 16384
-  KERNEL := kernel-bin | dtb | libdeflate-gzip | uImage gzip
-  KERNEL_INITRAMFS := kernel-bin | libdeflate-gzip | dtb | MuImage-initramfs gzip
+  DEVICE_DTC_FLAGS := --pad 4096
+  KERNEL := kernel-bin | libdeflate-gzip | uImage gzip
+  KERNEL_INITRAMFS := kernel-bin | libdeflate-gzip | MuImage-initramfs gzip
   IMAGES := factory.img.gz sysupgrade.img.gz
   ARTIFACTS := apollo3g.dtb
   DEVICE_DTB := apollo3g.dtb