build: consolidate fake uImage header build commands

Merge the two existing functions and use a parameter for the type
header field.

It updates the syntax of the former mpc85xx fake ramdisk header
command to be compatible with mkimage from u-boot 2018.03 and fixes the
build error spotted by the build bot.

Signed-off-by: Mathias Kresin <dev@kresin.me>

include/image-commands.mk

@@ -77,17 +77,17 @@ define Build/append-squashfs-fakeroot-be
 	cat $@.fakesquashfs >> $@
 endef
 
-# append a fake/empty rootfs uImage header, to fool the bootloaders
-# rootfs integrity check
-define Build/append-uImage-fakeroot-hdr
-	touch $@.fakeroot
+# append a fake/empty uImage header, to fool bootloaders rootfs integrity check
+# for example
+define Build/append-uImage-fakehdr
+	touch $@.fakehdr
 	$(STAGING_DIR_HOST)/bin/mkimage \
-		-A $(LINUX_KARCH) -O linux -T filesystem -C none \
-		-n '$(call toupper,$(LINUX_KARCH)) $(VERSION_DIST) fakeroot' \
-		-d $@.fakeroot \
+		-A $(LINUX_KARCH) -O linux -T $(1) -C none \
+		-n '$(VERSION_DIST) fake $(1)' \
+		-d $@.fakehdr \
 		-s \
-		$@.fakeroot
-	cat $@.fakeroot >> $@
+		$@.fakehdr
+	cat $@.fakehdr >> $@
 endef
 
 define Build/tplink-safeloader

target/linux/apm821xx/image/Makefile

@@ -171,7 +171,7 @@ 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 | uImage lzma | pad-offset $$(BLOCKSIZE) 64 | \
-	    append-uImage-fakeroot-hdr | dtb | create-uImage-dtb | prepend-dtb
+	    append-uImage-fakehdr filesystem | dtb | create-uImage-dtb | prepend-dtb
   KERNEL_INITRAMFS := kernel-bin | gzip | dtb | MuImage-initramfs gzip
   IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | \
 		       netgear-dni | check-size $$$$(IMAGE_SIZE)

target/linux/ipq40xx/image/Makefile

@@ -38,8 +38,8 @@ define Device/DniImage
 	NETGEAR_BOARD_ID :=
 	NETGEAR_HW_ID :=
 	IMAGES := factory.img sysupgrade.bin
-	IMAGE/factory.img := append-kernel | pad-offset 64k 64 | append-uImage-fakeroot-hdr | pad-to $$$$(KERNEL_SIZE) | append-rootfs | pad-rootfs | netgear-dni
-	IMAGE/sysupgrade.bin := append-kernel | pad-offset 64k 64 | append-uImage-fakeroot-hdr | pad-to $$$$(KERNEL_SIZE) | append-rootfs | pad-rootfs | append-metadata
+	IMAGE/factory.img := append-kernel | pad-offset 64k 64 | append-uImage-fakehdr filesystem | pad-to $$$$(KERNEL_SIZE) | append-rootfs | pad-rootfs | netgear-dni
+	IMAGE/sysupgrade.bin := append-kernel | pad-offset 64k 64 | append-uImage-fakehdr filesystem | pad-to $$$$(KERNEL_SIZE) | append-rootfs | pad-rootfs | append-metadata
 endef
 DEVICE_VARS += NETGEAR_BOARD_ID NETGEAR_HW_ID
 

target/linux/ipq806x/image/Makefile

@@ -47,8 +47,8 @@ define Device/DniImage
 	NETGEAR_HW_ID :=
 	UBINIZE_OPTS := -E 5
 	IMAGES := factory.img sysupgrade.bin
-	IMAGE/factory.img := append-kernel | pad-offset $$$$(BLOCKSIZE) 64 | append-uImage-fakeroot-hdr | pad-to $$$$(KERNEL_SIZE) | append-ubi | netgear-dni
-	IMAGE/sysupgrade.bin := append-kernel | pad-offset $$$$(BLOCKSIZE) 64 | append-uImage-fakeroot-hdr | sysupgrade-tar kernel=$$$$@ | append-metadata
+	IMAGE/factory.img := append-kernel | pad-offset $$$$(BLOCKSIZE) 64 | append-uImage-fakehdr filesystem | pad-to $$$$(KERNEL_SIZE) | append-ubi | netgear-dni
+	IMAGE/sysupgrade.bin := append-kernel | pad-offset $$$$(BLOCKSIZE) 64 | append-uImage-fakehdr filesystem | sysupgrade-tar kernel=$$$$@ | append-metadata
 endef
 DEVICE_VARS += NETGEAR_BOARD_ID NETGEAR_HW_ID
 
@@ -90,7 +90,7 @@ define Device/linksys_ea8500
 	PAGESIZE := 2048
 	BLOCKSIZE := 128k
 	KERNEL_SIZE := 3072k
-	KERNEL = kernel-bin | append-dtb | uImage none | append-uImage-fakeroot-hdr
+	KERNEL = kernel-bin | append-dtb | uImage none | append-uImage-fakehdr filesystem
 	BOARD_NAME := ea8500
 	SUPPORTED_DEVICES += ea8500
 	UBINIZE_OPTS := -E 5

target/linux/lantiq/image/Makefile

@@ -585,8 +585,8 @@ define Device/netgear_dm200
   DEVICE_DTS := DM200
   IMAGES := sysupgrade.bin factory.img
   IMAGE/sysupgrade.bin := append-kernel | \
-	pad-offset 64k 64 | append-uImage-fakeroot-hdr | \
-	pad-offset 64k 64 | append-uImage-fakeroot-hdr | \
+	pad-offset 64k 64 | append-uImage-fakehdr filesystem | \
+	pad-offset 64k 64 | append-uImage-fakehdr filesystem | \
 	append-rootfs | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
   IMAGE/factory.img := $$(IMAGE/sysupgrade.bin) | netgear-dni
   IMAGE_SIZE := 7872k

target/linux/mpc85xx/image/Makefile

@@ -16,16 +16,6 @@ define Device/Default
   KERNEL := kernel-bin
 endef
 
-define Build/append-uImage-fakeramdisk-hdr
-	rm -f $@.fakeramdisk
-	$(STAGING_DIR_HOST)/bin/mkimage \
-		-A $(LINUX_KARCH) -O linux -T ramdisk -C none \
-		-n 'fakeramdisk' \
-		-s \
-		$@.fakeramdisk
-	cat $@.fakeramdisk >> $@
-endef
-
 define Build/tplink-v1-image
 	$(STAGING_DIR_HOST)/bin/mktplinkfw \
 		-H $(TPLINK_HWID) -W $(TPLINK_HWREV) -F $(TPLINK_FLASHLAYOUT) \
@@ -68,7 +58,7 @@ define Device/hiveap-330
   IMAGES := fdt.bin sysupgrade.bin
   IMAGE/fdt.bin := append-dtb
   IMAGE/sysupgrade.bin := append-dtb | pad-to 256k | check-size 256k | \
-	append-uImage-fakeramdisk-hdr | pad-to 256k | check-size 512k | \
+	append-uImage-fakehdr ramdisk | pad-to 256k | check-size 512k | \
 	append-rootfs | pad-rootfs $$(BLOCKSIZE) | pad-to 41216k | check-size 41216k | \
 	append-kernel | append-metadata
 endef

target/linux/ramips/image/mt7620.mk

@@ -201,7 +201,7 @@ define Device/ex2700
   BLOCKSIZE := 4k
   IMAGE_SIZE := $(ralink_default_fw_size_4M)
   IMAGES += factory.bin
-  KERNEL := $(KERNEL_DTB) | uImage lzma | pad-offset 64k 64 | append-uImage-fakeroot-hdr
+  KERNEL := $(KERNEL_DTB) | uImage lzma | pad-offset 64k 64 | append-uImage-fakehdr filesystem
   IMAGE/factory.bin := $$(sysupgrade_bin) | check-size $$$$(IMAGE_SIZE) | \
 	netgear-dni
   DEVICE_PACKAGES := -kmod-mt76
@@ -512,7 +512,7 @@ define Device/wn3000rpv3
   DTS := WN3000RPV3
   BLOCKSIZE := 4k
   IMAGES += factory.bin
-  KERNEL := $(KERNEL_DTB) | uImage lzma | pad-offset 64k 64 | append-uImage-fakeroot-hdr
+  KERNEL := $(KERNEL_DTB) | uImage lzma | pad-offset 64k 64 | append-uImage-fakehdr filesystem
   IMAGE/factory.bin := $$(sysupgrade_bin) | check-size $$$$(IMAGE_SIZE) | \
 	netgear-dni
   DEVICE_TITLE := Netgear WN3000RPv3