openwrt/target/linux/mediatek/image/mt7623.mk
Daniel Golle 1ee75dd290
mediatek: mt7623: rework images for U7623-02 board
Users of older OpenWrt versions need sysupgrade using the *emmc.img.gz
file once which will upgrade U-Boot and switch to the new image layout.
Users of the vendor firmware need to first flash the legacy image to
then sunsequently carry out a full-flash upgrade.

Alternatively the board can also be flashed using MediaTek's
proprietary SP Flash Tool.

Configuration as well as persistent MAC address will be lost once at
this point and you will have to redo (or restore) all configuration
manually. To restore the previous persistent MAC address users may set
it manually using

fw_setenv ethaddr 00:11:22:33:44:55

For future upgrades once running OpenWrt past this commit, the usual
*sysupgrade.itb file can be used.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2022-01-23 20:20:37 +00:00

183 lines
6.8 KiB
Makefile

KERNEL_LOADADDR := 0x80008000
DEVICE_VARS += UBOOT_TARGET UBOOT_OFFSET UBOOT_IMAGE
# The bootrom of MT7623 expects legacy MediaTek headers present in
# exactly the location also used for the primary GPT partition table.
# (*MMC_BOOT and BRLYT)
# Hence only MSDOS/MBR partitioning can work here.
#
# ------------------------ Sector Offset
# | MBR + SDMMC_BOOT | 0 0x0
# |----------------------|
# | BRLYT header | 1 0x200
# |----------------------|
# . .
# . .
# |----------------------|
# | | 4 0x800
# | |
# | Preloader |
# . .
# . .
# | | 639
# |----------------------|
# | MBR partition #1 | 640 0x50000
# | |
# | U-Boot |
# . .
# . .
# | | 1663
# |----------------------|
# | MBR partition #2 |
# | |
# | Recovery |
# . .
# . (uImage.FIT) .
# | |
# |----------------------|
# | MBR partition #3 |
# | |
# | Production |
# | |
# | (uImage.FIT, |
# . rootfs_Data.) .
# . .
# | |
# ------------------------
#
# For eMMC boot, everything up to and including the preloader must be
# written to /dev/mmcblk0boot0, with the SDMMC_BOOT header changed to
# read EMMC_BOOT\0 instead.
#
# The contents of the main eMMC are identical to the SD card layout,
# with the preloader loading 512KiB of U-Boot starting at 0x50000.
define Build/mt7623-mbr
cp $@ $@.tmp 2>/dev/null || true
ptgen -o $@.tmp -h 4 -s 63 -a 0 -l 1024 \
-t 0x41 -N uboot -p 1M@$(UBOOT_OFFSET) \
-t 0xea -N recovery -p 40M@4M \
$(if $(findstring sdmmc,$1), \
-t 0x2e -N production -p $(CONFIG_TARGET_ROOTFS_PARTSIZE)M@48M \
) \
$(if $(findstring emmc,$1), \
-t 0x2e -N production -p $(CONFIG_TARGET_ROOTFS_PARTSIZE)M@48M \
)
echo -en \
$(if $(findstring sdmmc,$1),"SDMMC_BOOT\x00\x00\x01\x00\x00\x00\x00\x02\x00\x00") \
$(if $(findstring emmc,$1),"EMMC_BOOT\x00\x00\x00\x01\x00\x00\x00\x00\x02\x00\x00") \
| dd bs=1 of="$@.tmp" seek=0 conv=notrunc
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"\
| dd bs=1 of="$@.tmp" seek=512 conv=notrunc
cat $@.tmp >> $@
rm $@.tmp
endef
define Build/append-preloader
cat $(STAGING_DIR_IMAGE)/$1-preloader.bin >> $@
endef
define Build/append-bootloader
cat $(STAGING_DIR_IMAGE)/$1-$(UBOOT_IMAGE) >> $@
endef
define Build/scatterfile
./gen_scatterfile.sh $(subst mt,MT,$(SUBTARGET)) "$1" \
$(subst -scatter.txt,,$(notdir $@)) "$(DEVICE_TITLE)" > $@
endef
define Device/bananapi_bpi-r2
DEVICE_VENDOR := Bananapi
DEVICE_MODEL := BPi-R2
DEVICE_DTS := mt7623n-bananapi-bpi-r2
DEVICE_PACKAGES := mkf2fs e2fsprogs kmod-usb3 kmod-ata-ahci
UBOOT_OFFSET := 320k
UBOOT_TARGET := mt7623n_bpir2
UBOOT_IMAGE := u-boot.bin
UBOOT_PATH := $(STAGING_DIR_IMAGE)/$$(UBOOT_TARGET)-$$(UBOOT_IMAGE)
IMAGES := sysupgrade.itb
KERNEL := kernel-bin | gzip
KERNEL_INITRAMFS_SUFFIX := -recovery.itb
KERNEL_INITRAMFS := kernel-bin | gzip | fit gzip $$(DTS_DIR)/$$(DEVICE_DTS).dtb with-initrd
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 $$(UBOOT_TARGET)
ARTIFACT/u-boot.bin := append-uboot
ARTIFACT/sdcard.img.gz := mt7623-mbr sdmmc |\
pad-to 2k | append-preloader $$(UBOOT_TARGET) |\
pad-to $$(UBOOT_OFFSET) | append-bootloader $$(UBOOT_TARGET) |\
pad-to 4092k | mt7623-mbr emmc |\
pad-to 4M | append-image-stage initramfs-recovery.itb |\
pad-to 48M | append-image squashfs-sysupgrade.itb |\
gzip
ARTIFACTS := u-boot.bin preloader.bin sdcard.img.gz
SUPPORTED_DEVICES := bananapi,bpi-r2
endef
TARGET_DEVICES += bananapi_bpi-r2
define Device/unielec_u7623-02
DEVICE_VENDOR := UniElec
DEVICE_MODEL := U7623-02
# When we use FIT images, U-Boot will populate the /memory node with the correct
# memory size discovered from the preloader, so we don't need separate builds.
DEVICE_DTS := mt7623a-unielec-u7623-02
DEVICE_DTS_DIR := ../dts
DEVICE_PACKAGES := kmod-fs-vfat kmod-nls-cp437 kmod-nls-iso8859-1 kmod-mmc \
mkf2fs e2fsprogs kmod-usb-ohci kmod-usb2 kmod-usb3 kmod-ata-ahci
UBOOT_OFFSET := 256k
UBOOT_TARGET := mt7623a_unielec_u7623
UBOOT_IMAGE := u-boot-mtk.bin
UBOOT_PATH := $(STAGING_DIR_IMAGE)/$$(UBOOT_TARGET)-$$(UBOOT_IMAGE)
IMAGES := sysupgrade.itb
KERNEL := kernel-bin | gzip
KERNEL_INITRAMFS_SUFFIX := -recovery.itb
KERNEL_INITRAMFS := kernel-bin | gzip | fit gzip $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb with-initrd
IMAGE/sysupgrade.itb := append-kernel | fit gzip $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb external-static-with-rootfs | append-metadata
ARTIFACT/u-boot.bin := append-uboot
# vendor Preloader seems not to care about SDMMC_BOOT/EMMC_BOOT header,
# but OpenWrt expects 'SDMM' magic for sysupgrade.
ARTIFACT/emmc.img.gz := mt7623-mbr sdmmc |\
pad-to $$(UBOOT_OFFSET) | append-bootloader $$(UBOOT_TARGET) |\
pad-to 4M | append-image-stage initramfs-recovery.itb |\
pad-to 48M | append-image squashfs-sysupgrade.itb |\
gzip | append-metadata
ARTIFACT/scatter.txt := scatterfile emmc.img.gz
ARTIFACTS := u-boot.bin scatter.txt emmc.img.gz
SUPPORTED_DEVICES += unielec,u7623-02-emmc-512m
endef
TARGET_DEVICES += unielec_u7623-02
# Legacy helper for U7623 board
define Build/fat-recovery-fs
rm -f $@.recovery
mkfs.fat -C $@.recovery 3070
cat $@.recovery >> $@
endef
# Legacy partial image for U7623
# This preserves the vendor U-Boot and starts with a uImage at 0xA00
define Device/unielec_u7623-02-emmc-512m-legacy
DEVICE_VENDOR := UniElec
DEVICE_MODEL := U7623-02
DEVICE_VARIANT := eMMC/512MiB RAM (legacy image)
DEVICE_DTS := mt7623a-unielec-u7623-02-emmc-512m
DEVICE_DTS_DIR := ../dts
KERNEL_NAME := zImage
KERNEL := kernel-bin | append-dtb | uImage none
KERNEL_INITRAMFS := kernel-bin | append-dtb | uImage none
DEVICE_PACKAGES := kmod-fs-vfat kmod-nls-cp437 kmod-nls-iso8859-1 kmod-mmc \
mkf2fs e2fsprogs kmod-usb-ohci kmod-usb2 kmod-usb3 kmod-ata-ahci-mtk \
partx-utils
IMAGES := sysupgrade-emmc.bin.gz
IMAGE/sysupgrade-emmc.bin.gz := append-kernel |\
pad-to 4864k | fat-recovery-fs |\
pad-to 7936k | append-rootfs |\
gzip | append-metadata
SUPPORTED_DEVICES := unielec,u7623-02-emmc-512m
endef
TARGET_DEVICES += unielec_u7623-02-emmc-512m-legacy