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86a61e716e
* introduce recovery (=initramfs) vs. production dual boot scheme * make use of uImage.FIT (instead of FAT partition) * generate images using build steps (instead of external scripts) * simplify sysupgrade and config restore (thanks to uImage.FIT) * make sure mmc devices are ordered persistently (set DT aliases) This commit breaks sysupgrade from existing installations, you will have to re-install using the sdcard.img.gz image. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
162 lines
5.8 KiB
Makefile
162 lines
5.8 KiB
Makefile
KERNEL_LOADADDR := 0x80008000
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DEVICE_VARS += UBOOT_TARGET UBOOT_OFFSET UBOOT_ENVSIZE
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# The bootrom of MT7623 expects legacy MediaTek headers present in
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# exactly the location also used for the primary GPT partition table.
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# (*MMC_BOOT and BRLYT)
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# Hence only MSDOS/MBR partitioning can work here.
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#
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# ------------------------ Sector Offset
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# | MBR + SDMMC_BOOT | 0 0x0
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# |----------------------|
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# | BRLYT header | 1 0x200
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# |----------------------|
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# . .
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# . .
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# |----------------------|
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# | | 4 0x800
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# | |
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# | Preloader |
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# . .
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# . .
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# | | 639
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# |----------------------|
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# | MBR partition #1 | 640 0x50000
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# | |
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# | U-Boot |
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# . .
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# . .
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# | | 1663
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# |----------------------|
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# | MBR partition #2 |
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# | |
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# | Recovery |
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# . .
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# . (uImage.FIT) .
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# | |
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# |----------------------|
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# | MBR partition #3 |
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# | |
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# | Production |
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# | |
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# | (uImage.FIT, |
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# . rootfs_Data.) .
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# . .
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# | |
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# ------------------------
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#
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# For eMMC boot, everything up to and including the preloader must be
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# written to /dev/mmcblk0boot0, with the SDMMC_BOOT header changed to
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# read EMMC_BOOT\0 instead.
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#
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# The contents of the main eMMC are identical to the SD card layout,
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# with the preloader loading 512KiB of U-Boot starting at 0x50000.
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define Build/mt7623-mbr
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cp $@ $@.tmp 2>/dev/null || true
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ptgen -o $@.tmp -h 4 -s 63 -a 0 -l 1024 \
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-t 0x41 -N uboot -p 3584k@320k \
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-t 0xea -N recovery -p 40M@4M \
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$(if $(findstring sdmmc,$1), \
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-t 0x2e -N production -p 208M@48M \
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) \
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$(if $(findstring emmc,$1), \
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-t 0x2e -N production -p 976M@48M \
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)
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echo -en \
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$(if $(findstring sdmmc,$1),"SDMMC_BOOT\x00\x00\x01\x00\x00\x00\x00\x02\x00\x00") \
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$(if $(findstring emmc,$1),"EMMC_BOOT\x00\x00\x00\x01\x00\x00\x00\x00\x02\x00\x00") \
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| dd bs=1 of="$@.tmp" seek=0 conv=notrunc
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echo -en "BRLYT\x00\x00\x00\x01\x00\x00\x00\x00\x08\x00\x00\x00\x08\x00\x00\x42\x42\x42\x42\x08\x00\x01\x00\x00\x08\x00\x00\x00\x08\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"\
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| dd bs=1 of="$@.tmp" seek=512 conv=notrunc
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cat $@.tmp >> $@
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rm $@.tmp
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endef
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define Build/append-preloader
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cat $(STAGING_DIR_IMAGE)/$1-preloader.bin >> $@
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endef
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define Build/append-bootloader
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cat $(STAGING_DIR_IMAGE)/$1-u-boot.bin >> $@
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endef
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define Device/bananapi_bpi-r2
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DEVICE_VENDOR := Bananapi
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DEVICE_MODEL := BPi-R2
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DEVICE_DTS := mt7623n-bananapi-bpi-r2
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DEVICE_PACKAGES := kmod-mmc mkf2fs e2fsprogs kmod-usb3 kmod-ata-ahci
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UBOOT_ENVSIZE := 0x10000
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UBOOT_OFFSET := 320k
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UBOOT_TARGET := mt7623n_bpir2
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UBOOT_PATH := $(STAGING_DIR_IMAGE)/mt7623n_bpir2-u-boot.bin
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IMAGES := sysupgrade.itb
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KERNEL := kernel-bin | gzip
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KERNEL_INITRAMFS_SUFFIX := -recovery.itb
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KERNEL_INITRAMFS := kernel-bin | gzip | fit gzip $$(DTS_DIR)/$$(DEVICE_DTS).dtb with-initrd
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IMAGE/sysupgrade.itb := append-kernel | fit gzip $$(DTS_DIR)/$$(DEVICE_DTS).dtb external-static-with-rootfs | append-metadata
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ARTIFACT/preloader.bin := append-preloader $$(UBOOT_TARGET)
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ARTIFACT/u-boot.bin := append-uboot
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ARTIFACT/sdcard.img.gz := mt7623-mbr sdmmc |\
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pad-to 2k | append-preloader $$(UBOOT_TARGET) |\
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pad-to 320k | append-bootloader $$(UBOOT_TARGET) |\
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pad-to 4092k | mt7623-mbr emmc |\
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pad-to 4M | append-image-stage initramfs-recovery.itb |\
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pad-to 48M | append-image squashfs-sysupgrade.itb |\
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gzip
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ARTIFACTS = u-boot.bin preloader.bin scatter.txt sdcard.img.gz
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SUPPORTED_DEVICES := bananapi,bpi-r2
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endef
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TARGET_DEVICES += bananapi_bpi-r2
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define Build/scatterfile
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./gen_scatterfile.sh $(subst mt,MT,$(SUBTARGET)) "$1" \
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$(subst -scatter.txt,,$(notdir $@)) "$(DEVICE_TITLE)" > $@
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endef
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# Full eMMC image including U-Boot and partition table
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define Device/unielec_u7623-emmc
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DEVICE_VENDOR := UniElec
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DEVICE_MODEL := U7623
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DEVICE_VARIANT := eMMC
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# When we use FIT images, U-Boot will populate the /memory node with the correct
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# memory size discovered from the preloader, so we don't need separate builds.
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DEVICE_DTS := mt7623a-unielec-u7623-02-emmc-512m
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DEVICE_DTS_DIR := ../dts
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SUPPORTED_DEVICES := unielec,u7623-02-emmc-512m
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UBOOT_ENVSIZE := 0x1000
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UBOOT_OFFSET := 256k
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UBOOT_TARGET := mt7623a_unielec_u7623
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IMAGES := img.gz
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IMAGE/img.gz := mtk-mmc-img | gzip | append-metadata
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DEVICE_PACKAGES := kmod-fs-vfat kmod-nls-cp437 kmod-nls-iso8859-1 kmod-mmc \
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mkf2fs e2fsprogs kmod-usb-ohci kmod-usb2 kmod-usb3 kmod-ata-ahci-mtk
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ARTIFACT/scatter.txt := scatterfile $$(firstword $$(FILESYSTEMS))-$$(firstword $$(IMAGES))
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ARTIFACTS := scatter.txt
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endef
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TARGET_DEVICES += unielec_u7623-emmc
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# Legacy partial image for U7623
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# This preserves the vendor U-Boot and starts with a uImage at 0xA00
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define Device/unielec_u7623-02-emmc-512m-legacy
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DEVICE_VENDOR := UniElec
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DEVICE_MODEL := U7623-02
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DEVICE_VARIANT := eMMC/512MiB RAM (legacy image)
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DEVICE_DTS := mt7623a-unielec-u7623-02-emmc-512m
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DEVICE_DTS_DIR := ../dts
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KERNEL_NAME := zImage
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KERNEL := kernel-bin | append-dtb | uImage none
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KERNEL_INITRAMFS := kernel-bin | append-dtb | uImage none
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DEVICE_PACKAGES := kmod-fs-vfat kmod-nls-cp437 kmod-nls-iso8859-1 kmod-mmc \
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mkf2fs e2fsprogs kmod-usb-ohci kmod-usb2 kmod-usb3 kmod-ata-ahci-mtk
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IMAGES := sysupgrade-emmc.bin.gz
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IMAGE/sysupgrade-emmc.bin.gz := sysupgrade-emmc | gzip | append-metadata
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SUPPORTED_DEVICES := unielec,u7623-02-emmc-512m
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endef
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TARGET_DEVICES += unielec_u7623-02-emmc-512m-legacy
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