KERNEL_LOADADDR := 0x80008000
+DEVICE_VARS += UBOOT_TARGET UBOOT_OFFSET UBOOT_IMAGE
-define Device/unielec_u7623-02-emmc-512m
- DEVICE_VENDOR := UniElec
- DEVICE_MODEL := U7623-02
- DEVICE_VARIANT := eMMC/512MB RAM
- DEVICE_DTS := mt7623a-unielec-u7623-02-emmc-512m
- DEVICE_PACKAGES := mkf2fs e2fsprogs kmod-fs-vfat kmod-nls-cp437 kmod-nls-iso8859-1 kmod-mmc
- IMAGES := sysupgrade-emmc.bin.gz
- IMAGE/sysupgrade-emmc.bin.gz := sysupgrade-emmc | gzip | append-metadata
+# 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
-TARGET_DEVICES += unielec_u7623-02-emmc-512m
-define Device/bpi_bananapi-r2
- DEVICE_VENDOR := Bpi
- DEVICE_MODEL := Banana Pi R2
+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 += bpi_bananapi-r2
+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