mediatek: fix, clean and unify SD card image generation

Make sure sub-images on the SD card are size-checked, allow
generating SD card without squashfs and/or initramfs.

Signed-off-by: Daniel Golle <[email protected]>

target/linux/mediatek/image/filogic.mk

@@ -119,8 +119,9 @@ define Device/bananapi_bpi-r3
 				   pad-to 52M | bl31-uboot bananapi_bpi-r3-emmc |\
 				   pad-to 56M | mt7986-gpt emmc |\
 				$(if $(CONFIG_TARGET_ROOTFS_SQUASHFS),\
-				   pad-to 64M | append-image squashfs-sysupgrade.itb | check-size | gzip \
-				)
+				   pad-to 64M | append-image squashfs-sysupgrade.itb | check-size |\
+				) \
+				  gzip
   IMAGE_SIZE := $$(shell expr 64 + $$(CONFIG_TARGET_ROOTFS_PARTSIZE))m
   KERNEL			:= kernel-bin | gzip
   KERNEL_INITRAMFS := kernel-bin | lzma | \

target/linux/mediatek/image/mt7622.mk

@@ -88,9 +88,10 @@ define Device/bananapi_bpi-r64
 				   pad-to 40960k | bl31-uboot bananapi_bpi-r64-emmc |\
 				   pad-to 43008k | bl2 snand-2ddr |\
 				   pad-to 43520k | bl31-uboot bananapi_bpi-r64-snand |\
-				$(if $(CONFIG_TARGET_ROOTFS_SQUASHFS),\
-				   pad-to 46080k | append-image squashfs-sysupgrade.itb | check-size | gzip \
-				)
+				$(if $(CONFIG_TARGET_ROOTFS_SQUASHFS), \
+				   pad-to 46080k | append-image squashfs-sysupgrade.itb | check-size |\
+				) \
+				  gzip
   IMAGE_SIZE := $$(shell expr 45 + $$(CONFIG_TARGET_ROOTFS_PARTSIZE))m
   KERNEL			:= kernel-bin | gzip
   KERNEL_INITRAMFS		:= kernel-bin | lzma | fit lzma $$(DTS_DIR)/$$(DEVICE_DTS).dtb with-initrd | pad-to 128k

target/linux/mediatek/image/mt7623.mk

@@ -96,6 +96,7 @@ define Device/bananapi_bpi-r2
   KERNEL := kernel-bin | gzip
   KERNEL_INITRAMFS_SUFFIX := -recovery.itb
   KERNEL_INITRAMFS := kernel-bin | gzip | fit gzip $$(DTS_DIR)/$$(DEVICE_DTS).dtb with-initrd
+  IMAGE_SIZE := $$(shell expr 48 + $$(CONFIG_TARGET_ROOTFS_PARTSIZE))m
   IMAGE/sysupgrade.itb := append-kernel | fit gzip $$(DTS_DIR)/$$(DEVICE_DTS).dtb external-static-with-rootfs | append-metadata
   ARTIFACT/preloader.bin := mt7623-mbr emmc |\
 			    pad-to 2k | append-preloader $$(UBOOT_TARGET)
@@ -105,10 +106,10 @@ define Device/bananapi_bpi-r2
 			    pad-to $$(UBOOT_OFFSET) | append-bootloader $$(UBOOT_TARGET) |\
 			    pad-to 4092k | mt7623-mbr emmc |\
 			    $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),\
-			    pad-to 4M | append-image-stage initramfs-recovery.itb |\
+			    pad-to 4M | append-image-stage initramfs-recovery.itb | check-size 48m |\
 			    ) \
 			    $(if $(CONFIG_TARGET_ROOTFS_SQUASHFS),\
-			    pad-to 48M | append-image squashfs-sysupgrade.itb |\
+			    pad-to 48M | append-image squashfs-sysupgrade.itb | check-size |\
 			    ) \
 			    gzip
   ARTIFACTS := u-boot.bin preloader.bin sdcard.img.gz
@@ -129,6 +130,7 @@ define Device/unielec_u7623-02
   UBOOT_TARGET := mt7623a_unielec_u7623
   UBOOT_IMAGE := u-boot-mtk.bin
   UBOOT_PATH := $(STAGING_DIR_IMAGE)/$$(UBOOT_TARGET)-$$(UBOOT_IMAGE)
+  IMAGE_SIZE := $$(shell expr 48 + $$(CONFIG_TARGET_ROOTFS_PARTSIZE))m
   IMAGES := sysupgrade.itb
   KERNEL := kernel-bin | gzip
   KERNEL_INITRAMFS_SUFFIX := -recovery.itb
@@ -140,10 +142,10 @@ define Device/unielec_u7623-02
   ARTIFACT/emmc.img.gz := mt7623-mbr sdmmc |\
 			    pad-to $$(UBOOT_OFFSET) | append-bootloader $$(UBOOT_TARGET) |\
 			    $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),\
-			    pad-to 4M | append-image-stage initramfs-recovery.itb |\
+			    pad-to 4M | append-image-stage initramfs-recovery.itb | check-size 48m |\
 			    ) \
 			    $(if $(CONFIG_TARGET_ROOTFS_SQUASHFS),\
-			    pad-to 48M | append-image squashfs-sysupgrade.itb |\
+			    pad-to 48M | append-image squashfs-sysupgrade.itb | check-size |\
 			    ) \
 			    gzip | append-metadata
   ARTIFACT/scatter.txt := scatterfile emmc.img.gz